diff --git a/libavcodec/Makefile b/libavcodec/Makefile index b4138e88d9..d561efe186 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -134,8 +134,8 @@ OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o OBJS-$(CONFIG_COOK_DECODER) += cook.o OBJS-$(CONFIG_CSCD_DECODER) += cscd.o OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o -OBJS-$(CONFIG_DCA_DECODER) += dca.o synth_filter.o dcadsp.o \ - dca_parser.o +OBJS-$(CONFIG_DCA_DECODER) += dcadec.o dca.o dcadsp.o \ + dca_parser.o synth_filter.o OBJS-$(CONFIG_DCA_ENCODER) += dcaenc.o OBJS-$(CONFIG_DIRAC_DECODER) += diracdec.o dirac.o diracdsp.o \ dirac_arith.o mpeg12data.o dwt.o @@ -660,6 +660,7 @@ OBJS-$(CONFIG_OGG_MUXER) += xiph.o flac.o flacdata.o \ vorbis_data.o OBJS-$(CONFIG_RTP_MUXER) += mpeg4audio.o mpegvideo.o xiph.o OBJS-$(CONFIG_SPDIF_DEMUXER) += aacadtsdec.o mpeg4audio.o +OBJS-$(CONFIG_SPDIF_MUXER) += dca.o OBJS-$(CONFIG_WEBM_MUXER) += mpeg4audio.o mpegaudiodata.o \ xiph.o flac.o flacdata.o \ vorbis_data.o @@ -716,7 +717,7 @@ OBJS-$(CONFIG_AC3_PARSER) += ac3_parser.o ac3tab.o \ OBJS-$(CONFIG_ADX_PARSER) += adx_parser.o adx.o OBJS-$(CONFIG_CAVSVIDEO_PARSER) += cavs_parser.o OBJS-$(CONFIG_COOK_PARSER) += cook_parser.o -OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o +OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o dca.o OBJS-$(CONFIG_DIRAC_PARSER) += dirac_parser.o OBJS-$(CONFIG_DNXHD_PARSER) += dnxhd_parser.o OBJS-$(CONFIG_DVBSUB_PARSER) += dvbsub_parser.o diff --git a/libavcodec/arm/h264cmc_neon.S b/libavcodec/arm/h264cmc_neon.S index e82394d899..c7e54605bb 100644 --- a/libavcodec/arm/h264cmc_neon.S +++ b/libavcodec/arm/h264cmc_neon.S @@ -24,7 +24,7 @@ .macro h264_chroma_mc8 type, codec=h264 function ff_\type\()_\codec\()_chroma_mc8_neon, export=1 push {r4-r7, lr} - ldrd r4, [sp, #20] + ldrd r4, r5, [sp, #20] .ifc \type,avg mov lr, r0 .endif @@ -182,7 +182,7 @@ endfunc .macro h264_chroma_mc4 type, codec=h264 function ff_\type\()_\codec\()_chroma_mc4_neon, export=1 push {r4-r7, lr} - ldrd r4, [sp, #20] + ldrd r4, r5, [sp, #20] .ifc \type,avg mov lr, r0 .endif diff --git a/libavcodec/arm/h264dsp_neon.S b/libavcodec/arm/h264dsp_neon.S index 341863ef40..be0d2ec0bb 100644 --- a/libavcodec/arm/h264dsp_neon.S +++ b/libavcodec/arm/h264dsp_neon.S @@ -886,7 +886,7 @@ T mov sp, r0 mov r12, #8 vpush {d8-d15} bl put_h264_qpel8_h_lowpass_neon - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 mov r3, r2 add r12, sp, #64 sub r1, r1, r2, lsl #1 @@ -913,7 +913,7 @@ T mov sp, r0 vpush {d8-d15} bl put_h264_qpel8_h_lowpass_neon mov r4, r0 - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 sub r1, r1, r2, lsl #1 sub r1, r1, #2 mov r3, r2 @@ -958,7 +958,7 @@ T mov sp, r0 vpush {d8-d15} bl put_h264_qpel8_v_lowpass_neon mov r4, r0 - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 sub r1, r1, r3, lsl #1 sub r1, r1, #2 sub r2, r4, #64 @@ -1071,7 +1071,7 @@ T mov sp, r0 mov r3, #16 vpush {d8-d15} bl put_h264_qpel16_h_lowpass_neon - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 mov r3, r2 add r12, sp, #64 sub r1, r1, r2, lsl #1 @@ -1096,7 +1096,7 @@ T mov sp, r0 vpush {d8-d15} bl put_h264_qpel16_h_lowpass_neon_packed mov r4, r0 - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 sub r1, r1, r2, lsl #1 sub r1, r1, #2 mov r3, r2 @@ -1139,7 +1139,7 @@ T mov sp, r0 vpush {d8-d15} bl put_h264_qpel16_v_lowpass_neon_packed mov r4, r0 - ldrd r0, [r11], #8 + ldrd r0, r1, [r11], #8 sub r1, r1, r3, lsl #1 sub r1, r1, #2 mov r2, r3 diff --git a/libavcodec/arm/mpegvideo_armv5te_s.S b/libavcodec/arm/mpegvideo_armv5te_s.S index 8f9dd42b22..8687d6b31c 100644 --- a/libavcodec/arm/mpegvideo_armv5te_s.S +++ b/libavcodec/arm/mpegvideo_armv5te_s.S @@ -61,9 +61,9 @@ function ff_dct_unquantize_h263_armv5te, export=1 mov ip, #0 subs r3, r3, #2 ble 2f - ldrd r4, [r0, #0] + ldrd r4, r5, [r0, #0] 1: - ldrd r6, [r0, #8] + ldrd r6, r7, [r0, #8] dequant_t r9, r4, r1, r2, r9 dequant_t lr, r5, r1, r2, lr @@ -87,7 +87,7 @@ function ff_dct_unquantize_h263_armv5te, export=1 subs r3, r3, #8 it gt - ldrdgt r4, [r0, #0] /* load data early to avoid load/use pipeline stall */ + ldrdgt r4, r5, [r0, #0] /* load data early to avoid load/use pipeline stall */ bgt 1b adds r3, r3, #2 diff --git a/libavcodec/arm/simple_idct_arm.S b/libavcodec/arm/simple_idct_arm.S index 42741a07a1..dd1c815104 100644 --- a/libavcodec/arm/simple_idct_arm.S +++ b/libavcodec/arm/simple_idct_arm.S @@ -25,8 +25,7 @@ #include "libavutil/arm/asm.S" -/* useful constants for the algorithm, they are save in __constant_ptr__ at */ -/* the end of the source code.*/ +/* useful constants for the algorithm */ #define W1 22725 #define W2 21407 #define W3 19266 @@ -36,16 +35,6 @@ #define W7 4520 #define MASK_MSHW 0xFFFF0000 -/* offsets of the constants in the vector */ -#define offW1 0 -#define offW2 4 -#define offW3 8 -#define offW4 12 -#define offW5 16 -#define offW6 20 -#define offW7 24 -#define offMASK_MSHW 28 - #define ROW_SHIFT 11 #define ROW_SHIFT2MSHW (16-11) #define COL_SHIFT 20 @@ -63,7 +52,6 @@ function ff_simple_idct_arm, export=1 stmfd sp!, {r4-r11, r14} @ R14 is also called LR @@ at this point, R0=block, other registers are free. add r14, r0, #112 @ R14=&block[8*7], better start from the last row, and decrease the value until row=0, i.e. R12=block. - adr r12, __constant_ptr__ @ R12=__constant_ptr__, the vector containing the constants, probably not necessary to reserve a register for it @@ add 2 temporary variables in the stack: R0 and R14 sub sp, sp, #8 @ allow 2 local variables str r0, [sp, #0] @ save block in sp[0] @@ -109,13 +97,13 @@ __b_evaluation: @@ MAC16(b1, -W7, row[3]); @@ MAC16(b2, -W1, row[3]); @@ MAC16(b3, -W5, row[3]); - ldr r8, [r12, #offW1] @ R8=W1 + ldr r8, =W1 @ R8=W1 mov r2, r2, asr #16 @ R2=ROWr16[3] mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r9, [r12, #offW3] @ R9=W3 - ldr r10, [r12, #offW5] @ R10=W5 + ldr r9, =W3 @ R9=W3 + ldr r10, =W5 @ R10=W5 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r11, [r12, #offW7] @ R11=W7 + ldr r11, =W7 @ R11=W7 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) teq r2, #0 @ if null avoid muls @@ -177,14 +165,14 @@ __a_evaluation: @@ a2 = a0 - W6 * row[2]; @@ a3 = a0 - W2 * row[2]; @@ a0 = a0 + W2 * row[2]; - ldr r9, [r12, #offW4] @ R9=W4 + ldr r9, =W4 @ R9=W4 mul r6, r9, r6 @ R6=W4*ROWr16[0] - ldr r10, [r12, #offW6] @ R10=W6 + ldr r10, =W6 @ R10=W6 ldrsh r4, [r14, #4] @ R4=ROWr16[2] (a3 not defined yet) add r6, r6, #ROW_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(ROW_SHIFT-1) (a0) mul r11, r10, r4 @ R11=W6*ROWr16[2] - ldr r8, [r12, #offW2] @ R8=W2 + ldr r8, =W2 @ R8=W2 sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2) @@ temp = ((uint32_t*)row)[2] | ((uint32_t*)row)[3]; @@ if (temp != 0) {} @@ -248,7 +236,7 @@ __end_a_evaluation: add r9, r2, r1 @ R9=a1+b1 @@ put 2 16 bits half-words in a 32bits word @@ ROWr32[0]=ROWr16[0] | (ROWr16[1]<<16) (only Little Endian compliant then!!!) - ldr r10, [r12, #offMASK_MSHW] @ R10=0xFFFF0000 + ldr r10, =MASK_MSHW @ R10=0xFFFF0000 and r9, r10, r9, lsl #ROW_SHIFT2MSHW @ R9=0xFFFF0000 & ((a1+b1)<<5) mvn r11, r10 @ R11= NOT R10= 0x0000FFFF and r8, r11, r8, asr #ROW_SHIFT @ R8=0x0000FFFF & ((a0+b0)>>11) @@ -319,13 +307,13 @@ __b_evaluation2: @@ MAC16(b1, -W7, col[8x3]); @@ MAC16(b2, -W1, col[8x3]); @@ MAC16(b3, -W5, col[8x3]); - ldr r8, [r12, #offW1] @ R8=W1 + ldr r8, =W1 @ R8=W1 ldrsh r7, [r14, #16] mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r9, [r12, #offW3] @ R9=W3 - ldr r10, [r12, #offW5] @ R10=W5 + ldr r9, =W3 @ R9=W3 + ldr r10, =W5 @ R10=W5 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r11, [r12, #offW7] @ R11=W7 + ldr r11, =W7 @ R11=W7 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) ldrsh r2, [r14, #48] mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) @@ -381,13 +369,13 @@ __a_evaluation2: @@ a3 = a0 - W2 * row[2]; @@ a0 = a0 + W2 * row[2]; ldrsh r6, [r14, #0] - ldr r9, [r12, #offW4] @ R9=W4 + ldr r9, =W4 @ R9=W4 mul r6, r9, r6 @ R6=W4*ROWr16[0] - ldr r10, [r12, #offW6] @ R10=W6 + ldr r10, =W6 @ R10=W6 ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet) add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0) mul r11, r10, r4 @ R11=W6*ROWr16[2] - ldr r8, [r12, #offW2] @ R8=W2 + ldr r8, =W2 @ R8=W2 add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2) mul r11, r8, r4 @ R11=W2*ROWr16[2] @@ -489,15 +477,3 @@ __end_bef_a_evaluation: sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3) add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0) bal __end_a_evaluation - - - .align -__constant_ptr__: @@ see #defines at the beginning of the source code for values. - .word W1 - .word W2 - .word W3 - .word W4 - .word W5 - .word W6 - .word W7 - .word MASK_MSHW diff --git a/libavcodec/arm/simple_idct_armv5te.S b/libavcodec/arm/simple_idct_armv5te.S index 20a2305b65..d1f10b75cb 100644 --- a/libavcodec/arm/simple_idct_armv5te.S +++ b/libavcodec/arm/simple_idct_armv5te.S @@ -37,17 +37,11 @@ #define W26 (W2 | (W6 << 16)) #define W57 (W5 | (W7 << 16)) - .text - .align -w13: .long W13 -w26: .long W26 -w57: .long W57 - function idct_row_armv5te str lr, [sp, #-4]! - ldrd v1, [a1, #8] - ldrd a3, [a1] /* a3 = row[1:0], a4 = row[3:2] */ + ldrd v1, v2, [a1, #8] + ldrd a3, a4, [a1] /* a3 = row[1:0], a4 = row[3:2] */ orrs v1, v1, v2 itt eq cmpeq v1, a4 @@ -58,7 +52,7 @@ function idct_row_armv5te mov ip, #16384 sub ip, ip, #1 /* ip = W4 */ smlabb v1, ip, a3, v1 /* v1 = W4*row[0]+(1<<(RS-1)) */ - ldr ip, w26 /* ip = W2 | (W6 << 16) */ + ldr ip, =W26 /* ip = W2 | (W6 << 16) */ smultb a2, ip, a4 smulbb lr, ip, a4 add v2, v1, a2 @@ -66,8 +60,8 @@ function idct_row_armv5te sub v4, v1, lr add v1, v1, lr - ldr ip, w13 /* ip = W1 | (W3 << 16) */ - ldr lr, w57 /* lr = W5 | (W7 << 16) */ + ldr ip, =W13 /* ip = W1 | (W3 << 16) */ + ldr lr, =W57 /* lr = W5 | (W7 << 16) */ smulbt v5, ip, a3 smultt v6, lr, a4 smlatt v5, ip, a4, v5 @@ -78,7 +72,7 @@ function idct_row_armv5te smultt fp, lr, a3 sub v7, v7, a2 smulbt a2, lr, a4 - ldrd a3, [a1, #8] /* a3=row[5:4] a4=row[7:6] */ + ldrd a3, a4, [a1, #8] /* a3=row[5:4] a4=row[7:6] */ sub fp, fp, a2 orrs a2, a3, a4 @@ -94,7 +88,7 @@ function idct_row_armv5te smlatt v7, ip, a4, v7 sub fp, fp, a2 - ldr ip, w26 /* ip = W2 | (W6 << 16) */ + ldr ip, =W26 /* ip = W2 | (W6 << 16) */ mov a2, #16384 sub a2, a2, #1 /* a2 = W4 */ smulbb a2, a2, a3 /* a2 = W4*row[4] */ @@ -121,7 +115,7 @@ function idct_row_armv5te add a2, v4, fp mov a2, a2, lsr #11 add a4, a4, a2, lsl #16 - strd a3, [a1] + strd a3, a4, [a1] sub a2, v4, fp mov a3, a2, lsr #11 @@ -135,7 +129,7 @@ function idct_row_armv5te sub a2, v1, v5 mov a2, a2, lsr #11 add a4, a4, a2, lsl #16 - strd a3, [a1, #8] + strd a3, a4, [a1, #8] ldr pc, [sp], #4 @@ -144,8 +138,8 @@ row_dc_only: bic a3, a3, #0xe000 mov a3, a3, lsl #3 mov a4, a3 - strd a3, [a1] - strd a3, [a1, #8] + strd a3, a4, [a1] + strd a3, a4, [a1, #8] ldr pc, [sp], #4 endfunc @@ -178,7 +172,7 @@ endfunc sub v4, v2, a3 sub v6, v2, a3 add fp, v2, a3 - ldr ip, w26 + ldr ip, =W26 ldr a4, [a1, #(16*2)] add v2, v2, a3 @@ -211,9 +205,9 @@ endfunc stmfd sp!, {v1, v2, v3, v4, v5, v6, v7, fp} - ldr ip, w13 + ldr ip, =W13 ldr a4, [a1, #(16*1)] - ldr lr, w57 + ldr lr, =W57 smulbb v1, ip, a4 smultb v3, ip, a4 smulbb v5, lr, a4 diff --git a/libavcodec/arm/simple_idct_armv6.S b/libavcodec/arm/simple_idct_armv6.S index 25393bfd27..0c19d267a8 100644 --- a/libavcodec/arm/simple_idct_armv6.S +++ b/libavcodec/arm/simple_idct_armv6.S @@ -40,15 +40,6 @@ #define W46 (W4 | (W6 << 16)) #define W57 (W5 | (W7 << 16)) - .text - .align -w13: .long W13 -w26: .long W26 -w42: .long W42 -w42n: .long W42n -w46: .long W46 -w57: .long W57 - /* Compute partial IDCT of single row. shift = left-shift amount @@ -60,12 +51,12 @@ w57: .long W57 Output in registers r4--r11 */ .macro idct_row shift - ldr lr, w46 /* lr = W4 | (W6 << 16) */ + ldr lr, =W46 /* lr = W4 | (W6 << 16) */ mov r1, #(1<<(\shift-1)) smlad r4, r2, ip, r1 smlsd r7, r2, ip, r1 - ldr ip, w13 /* ip = W1 | (W3 << 16) */ - ldr r10,w57 /* r10 = W5 | (W7 << 16) */ + ldr ip, =W13 /* ip = W1 | (W3 << 16) */ + ldr r10,=W57 /* r10 = W5 | (W7 << 16) */ smlad r5, r2, lr, r1 smlsd r6, r2, lr, r1 @@ -78,11 +69,11 @@ w57: .long W57 smlad r8, lr, r10,r8 /* B0 += W5*row[5] + W7*row[7] */ smusdx r10,r3, r1 /* r10 = B2 = W5*row[1] - W1*row[3] */ - ldr r3, w42n /* r3 = -W4 | (-W2 << 16) */ + ldr r3, =W42n /* r3 = -W4 | (-W2 << 16) */ smlad r10,lr, r2, r10 /* B2 += W7*row[5] + W3*row[7] */ ldr r2, [r0, #4] /* r2 = row[6,4] */ smlsdx r11,lr, ip, r11 /* B3 += W3*row[5] - W1*row[7] */ - ldr ip, w46 /* ip = W4 | (W6 << 16) */ + ldr ip, =W46 /* ip = W4 | (W6 << 16) */ smlad r9, lr, r1, r9 /* B1 -= W1*row[5] + W5*row[7] */ smlad r5, r2, r3, r5 /* A1 += -W4*row[4] - W2*row[6] */ @@ -101,12 +92,12 @@ w57: .long W57 Output in registers r4--r11 */ .macro idct_row4 shift - ldr lr, w46 /* lr = W4 | (W6 << 16) */ - ldr r10,w57 /* r10 = W5 | (W7 << 16) */ + ldr lr, =W46 /* lr = W4 | (W6 << 16) */ + ldr r10,=W57 /* r10 = W5 | (W7 << 16) */ mov r1, #(1<<(\shift-1)) smlad r4, r2, ip, r1 smlsd r7, r2, ip, r1 - ldr ip, w13 /* ip = W1 | (W3 << 16) */ + ldr ip, =W13 /* ip = W1 | (W3 << 16) */ smlad r5, r2, lr, r1 smlsd r6, r2, lr, r1 smusdx r11,r3, r10 /* r11 = B3 = W7*row[1] - W5*row[3] */ @@ -205,7 +196,7 @@ function idct_row_armv6 cmpeq lr, r2, lsr #16 beq 1f push {r1} - ldr ip, w42 /* ip = W4 | (W2 << 16) */ + ldr ip, =W42 /* ip = W4 | (W2 << 16) */ cmp lr, #0 beq 2f @@ -249,7 +240,7 @@ function idct_col_armv6 push {r1, lr} ldr r2, [r0] /* r2 = row[2,0] */ - ldr ip, w42 /* ip = W4 | (W2 << 16) */ + ldr ip, =W42 /* ip = W4 | (W2 << 16) */ ldr r3, [r0, #8] /* r3 = row[3,1] */ idct_row COL_SHIFT pop {r1} @@ -277,7 +268,7 @@ function idct_col_put_armv6 push {r1, r2, lr} ldr r2, [r0] /* r2 = row[2,0] */ - ldr ip, w42 /* ip = W4 | (W2 << 16) */ + ldr ip, =W42 /* ip = W4 | (W2 << 16) */ ldr r3, [r0, #8] /* r3 = row[3,1] */ idct_row COL_SHIFT pop {r1, r2} @@ -307,7 +298,7 @@ function idct_col_add_armv6 push {r1, r2, lr} ldr r2, [r0] /* r2 = row[2,0] */ - ldr ip, w42 /* ip = W4 | (W2 << 16) */ + ldr ip, =W42 /* ip = W4 | (W2 << 16) */ ldr r3, [r0, #8] /* r3 = row[3,1] */ idct_row COL_SHIFT pop {r1, r2} diff --git a/libavcodec/arm/simple_idct_neon.S b/libavcodec/arm/simple_idct_neon.S index 3c048b0d56..a8fc13768e 100644 --- a/libavcodec/arm/simple_idct_neon.S +++ b/libavcodec/arm/simple_idct_neon.S @@ -159,8 +159,8 @@ function idct_col4_neon vmull.s16 q15, d30, w4 /* q15 = W4*(col[0]+(1< -#include -#include +#include -#include "libavutil/common.h" -#include "libavutil/float_dsp.h" -#include "libavutil/intmath.h" -#include "libavutil/intreadwrite.h" -#include "libavutil/mathematics.h" -#include "libavutil/audioconvert.h" -#include "avcodec.h" -#include "dsputil.h" -#include "fft.h" -#include "get_bits.h" -#include "put_bits.h" -#include "dcadata.h" -#include "dcahuff.h" #include "dca.h" -#include "dca_parser.h" -#include "synth_filter.h" -#include "dcadsp.h" -#include "fmtconvert.h" -#if ARCH_ARM -# include "arm/dca.h" -#endif - -//#define TRACE - -#define DCA_PRIM_CHANNELS_MAX (7) -#define DCA_SUBBANDS (64) -#define DCA_ABITS_MAX (32) /* Should be 28 */ -#define DCA_SUBSUBFRAMES_MAX (4) -#define DCA_SUBFRAMES_MAX (16) -#define DCA_BLOCKS_MAX (16) -#define DCA_LFE_MAX (3) -#define DCA_CHSETS_MAX (4) -#define DCA_CHSET_CHANS_MAX (8) - -enum DCAMode { - DCA_MONO = 0, - DCA_CHANNEL, - DCA_STEREO, - DCA_STEREO_SUMDIFF, - DCA_STEREO_TOTAL, - DCA_3F, - DCA_2F1R, - DCA_3F1R, - DCA_2F2R, - DCA_3F2R, - DCA_4F2R -}; - -/* these are unconfirmed but should be mostly correct */ -enum DCAExSSSpeakerMask { - DCA_EXSS_FRONT_CENTER = 0x0001, - DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002, - DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004, - DCA_EXSS_LFE = 0x0008, - DCA_EXSS_REAR_CENTER = 0x0010, - DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020, - DCA_EXSS_REAR_LEFT_RIGHT = 0x0040, - DCA_EXSS_FRONT_HIGH_CENTER = 0x0080, - DCA_EXSS_OVERHEAD = 0x0100, - DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200, - DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400, - DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800, - DCA_EXSS_LFE2 = 0x1000, - DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000, - DCA_EXSS_REAR_HIGH_CENTER = 0x4000, - DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000, -}; - -enum DCAXxchSpeakerMask { - DCA_XXCH_FRONT_CENTER = 0x0000001, - DCA_XXCH_FRONT_LEFT = 0x0000002, - DCA_XXCH_FRONT_RIGHT = 0x0000004, - DCA_XXCH_SIDE_REAR_LEFT = 0x0000008, - DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010, - DCA_XXCH_LFE1 = 0x0000020, - DCA_XXCH_REAR_CENTER = 0x0000040, - DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080, - DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100, - DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200, - DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400, - DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800, - DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000, - DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000, - DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000, - DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000, - DCA_XXCH_LFE2 = 0x0010000, - DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000, - DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000, - DCA_XXCH_OVERHEAD = 0x0080000, - DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000, - DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000, - DCA_XXCH_REAR_HIGH_CENTER = 0x0400000, - DCA_XXCH_REAR_HIGH_LEFT = 0x0800000, - DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000, - DCA_XXCH_REAR_LOW_CENTER = 0x2000000, - DCA_XXCH_REAR_LOW_LEFT = 0x4000000, - DCA_XXCH_REAR_LOW_RIGHT = 0x8000000, -}; - -static const uint32_t map_xxch_to_native[28] = { - AV_CH_FRONT_CENTER, - AV_CH_FRONT_LEFT, - AV_CH_FRONT_RIGHT, - AV_CH_SIDE_LEFT, - AV_CH_SIDE_RIGHT, - AV_CH_LOW_FREQUENCY, - AV_CH_BACK_CENTER, - AV_CH_BACK_LEFT, - AV_CH_BACK_RIGHT, - AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */ - AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */ - AV_CH_FRONT_LEFT_OF_CENTER, - AV_CH_FRONT_RIGHT_OF_CENTER, - AV_CH_TOP_FRONT_LEFT, - AV_CH_TOP_FRONT_CENTER, - AV_CH_TOP_FRONT_RIGHT, - AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */ - AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */ - AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */ - AV_CH_TOP_CENTER, /* overhead */ - AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */ - AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */ - AV_CH_TOP_BACK_CENTER, - AV_CH_TOP_BACK_LEFT, - AV_CH_TOP_BACK_RIGHT, - AV_CH_BACK_CENTER, /* rear low center -- dup */ - AV_CH_BACK_LEFT, /* rear low left -- dup */ - AV_CH_BACK_RIGHT /* read low right -- dup */ -}; - -enum DCAExtensionMask { - DCA_EXT_CORE = 0x001, ///< core in core substream - DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream - DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream - DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream - DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream) - DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS - DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS - DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS - DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS - DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS -}; - -/* -1 are reserved or unknown */ -static const int dca_ext_audio_descr_mask[] = { - DCA_EXT_XCH, - -1, - DCA_EXT_X96, - DCA_EXT_XCH | DCA_EXT_X96, - -1, - -1, - DCA_EXT_XXCH, - -1, -}; - -/* extensions that reside in core substream */ -#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96) - -/* Tables for mapping dts channel configurations to libavcodec multichannel api. - * Some compromises have been made for special configurations. Most configurations - * are never used so complete accuracy is not needed. - * - * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead. - * S -> side, when both rear and back are configured move one of them to the side channel - * OV -> center back - * All 2 channel configurations -> AV_CH_LAYOUT_STEREO - */ -static const uint64_t dca_core_channel_layout[] = { - AV_CH_FRONT_CENTER, ///< 1, A - AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono) - AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo) - AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference) - AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total) - AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R - AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S - AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S - AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR - - AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT | - AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR - - AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | - AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR - - AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | - AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV - - AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | - AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER | - AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR - - AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | - AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | - AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR - - AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | - AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | - AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2 - - AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | - AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | - AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR -}; - -static const int8_t dca_lfe_index[] = { - 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3 -}; - -static const int8_t dca_channel_reorder_lfe[][9] = { - { 0, -1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, -1, -1, -1, -1, -1, -1}, - { 0, 1, 3, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, 4, -1, -1, -1, -1, -1}, - { 0, 1, 3, 4, -1, -1, -1, -1, -1}, - { 2, 0, 1, 4, 5, -1, -1, -1, -1}, - { 3, 4, 0, 1, 5, 6, -1, -1, -1}, - { 2, 0, 1, 4, 5, 6, -1, -1, -1}, - { 0, 6, 4, 5, 2, 3, -1, -1, -1}, - { 4, 2, 5, 0, 1, 6, 7, -1, -1}, - { 5, 6, 0, 1, 7, 3, 8, 4, -1}, - { 4, 2, 5, 0, 1, 6, 8, 7, -1}, -}; - -static const int8_t dca_channel_reorder_lfe_xch[][9] = { - { 0, 2, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, 3, -1, -1, -1, -1, -1, -1}, - { 0, 1, 3, -1, -1, -1, -1, -1, -1}, - { 0, 1, 3, -1, -1, -1, -1, -1, -1}, - { 0, 1, 3, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, 4, -1, -1, -1, -1, -1}, - { 0, 1, 3, 4, -1, -1, -1, -1, -1}, - { 2, 0, 1, 4, 5, -1, -1, -1, -1}, - { 0, 1, 4, 5, 3, -1, -1, -1, -1}, - { 2, 0, 1, 5, 6, 4, -1, -1, -1}, - { 3, 4, 0, 1, 6, 7, 5, -1, -1}, - { 2, 0, 1, 4, 5, 6, 7, -1, -1}, - { 0, 6, 4, 5, 2, 3, 7, -1, -1}, - { 4, 2, 5, 0, 1, 7, 8, 6, -1}, - { 5, 6, 0, 1, 8, 3, 9, 4, 7}, - { 4, 2, 5, 0, 1, 6, 9, 8, 7}, -}; - -static const int8_t dca_channel_reorder_nolfe[][9] = { - { 0, -1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, -1, -1, -1, -1, -1, -1}, - { 0, 1, 2, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, 3, -1, -1, -1, -1, -1}, - { 0, 1, 2, 3, -1, -1, -1, -1, -1}, - { 2, 0, 1, 3, 4, -1, -1, -1, -1}, - { 2, 3, 0, 1, 4, 5, -1, -1, -1}, - { 2, 0, 1, 3, 4, 5, -1, -1, -1}, - { 0, 5, 3, 4, 1, 2, -1, -1, -1}, - { 3, 2, 4, 0, 1, 5, 6, -1, -1}, - { 4, 5, 0, 1, 6, 2, 7, 3, -1}, - { 3, 2, 4, 0, 1, 5, 7, 6, -1}, -}; - -static const int8_t dca_channel_reorder_nolfe_xch[][9] = { - { 0, 1, -1, -1, -1, -1, -1, -1, -1}, - { 0, 1, 2, -1, -1, -1, -1, -1, -1}, - { 0, 1, 2, -1, -1, -1, -1, -1, -1}, - { 0, 1, 2, -1, -1, -1, -1, -1, -1}, - { 0, 1, 2, -1, -1, -1, -1, -1, -1}, - { 2, 0, 1, 3, -1, -1, -1, -1, -1}, - { 0, 1, 2, 3, -1, -1, -1, -1, -1}, - { 2, 0, 1, 3, 4, -1, -1, -1, -1}, - { 0, 1, 3, 4, 2, -1, -1, -1, -1}, - { 2, 0, 1, 4, 5, 3, -1, -1, -1}, - { 2, 3, 0, 1, 5, 6, 4, -1, -1}, - { 2, 0, 1, 3, 4, 5, 6, -1, -1}, - { 0, 5, 3, 4, 1, 2, 6, -1, -1}, - { 3, 2, 4, 0, 1, 6, 7, 5, -1}, - { 4, 5, 0, 1, 7, 2, 8, 3, 6}, - { 3, 2, 4, 0, 1, 5, 8, 7, 6}, -}; - -#define DCA_DOLBY 101 /* FIXME */ - -#define DCA_CHANNEL_BITS 6 -#define DCA_CHANNEL_MASK 0x3F - -#define DCA_LFE 0x80 - -#define HEADER_SIZE 14 - -#define DCA_MAX_FRAME_SIZE 16384 -#define DCA_MAX_EXSS_HEADER_SIZE 4096 - -#define DCA_BUFFER_PADDING_SIZE 1024 - -/** Bit allocation */ -typedef struct { - int offset; ///< code values offset - int maxbits[8]; ///< max bits in VLC - int wrap; ///< wrap for get_vlc2() - VLC vlc[8]; ///< actual codes -} BitAlloc; - -static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select -static BitAlloc dca_tmode; ///< transition mode VLCs -static BitAlloc dca_scalefactor; ///< scalefactor VLCs -static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs - -static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba, - int idx) -{ - return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) + - ba->offset; -} - -typedef struct { - AVCodecContext *avctx; - AVFrame frame; - /* Frame header */ - int frame_type; ///< type of the current frame - int samples_deficit; ///< deficit sample count - int crc_present; ///< crc is present in the bitstream - int sample_blocks; ///< number of PCM sample blocks - int frame_size; ///< primary frame byte size - int amode; ///< audio channels arrangement - int sample_rate; ///< audio sampling rate - int bit_rate; ///< transmission bit rate - int bit_rate_index; ///< transmission bit rate index - - int downmix; ///< embedded downmix enabled - int dynrange; ///< embedded dynamic range flag - int timestamp; ///< embedded time stamp flag - int aux_data; ///< auxiliary data flag - int hdcd; ///< source material is mastered in HDCD - int ext_descr; ///< extension audio descriptor flag - int ext_coding; ///< extended coding flag - int aspf; ///< audio sync word insertion flag - int lfe; ///< low frequency effects flag - int predictor_history; ///< predictor history flag - int header_crc; ///< header crc check bytes - int multirate_inter; ///< multirate interpolator switch - int version; ///< encoder software revision - int copy_history; ///< copy history - int source_pcm_res; ///< source pcm resolution - int front_sum; ///< front sum/difference flag - int surround_sum; ///< surround sum/difference flag - int dialog_norm; ///< dialog normalisation parameter - - /* Primary audio coding header */ - int subframes; ///< number of subframes - int total_channels; ///< number of channels including extensions - int prim_channels; ///< number of primary audio channels - int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count - int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband - int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index - int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book - int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book - int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select - int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select - float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment - - /* Primary audio coding side information */ - int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes - int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count - int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not) - int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs - int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index - int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients) - int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient) - int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook - int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors - int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients - int dynrange_coef; ///< dynamic range coefficient - - int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands - - float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data - int lfe_scale_factor; - - /* Subband samples history (for ADPCM) */ - DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4]; - DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512]; - DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32]; - int hist_index[DCA_PRIM_CHANNELS_MAX]; - DECLARE_ALIGNED(32, float, raXin)[32]; - - int output; ///< type of output - float scale_bias; ///< output scale - - DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8]; - DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256]; - const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1]; - - uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE]; - int dca_buffer_size; ///< how much data is in the dca_buffer - - const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe - GetBitContext gb; - /* Current position in DCA frame */ - int current_subframe; - int current_subsubframe; - - int core_ext_mask; ///< present extensions in the core substream - - /* XCh extension information */ - int xch_present; ///< XCh extension present and valid - int xch_base_channel; ///< index of first (only) channel containing XCH data - - /* XXCH extension information */ - int xxch_chset; - int xxch_nbits_spk_mask; - uint32_t xxch_core_spkmask; - uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */ - int xxch_chset_nch[4]; - float xxch_dmix_sf[DCA_CHSETS_MAX]; - - uint32_t xxch_downmix; /* downmix enabled per channel set */ - uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */ - float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */ - - int8_t xxch_order_tab[32]; - int8_t lfe_index; - - /* ExSS header parser */ - int static_fields; ///< static fields present - int mix_metadata; ///< mixing metadata present - int num_mix_configs; ///< number of mix out configurations - int mix_config_num_ch[4]; ///< number of channels in each mix out configuration - - int profile; - - int debug_flag; ///< used for suppressing repeated error messages output - AVFloatDSPContext fdsp; - FFTContext imdct; - SynthFilterContext synth; - DCADSPContext dcadsp; - FmtConvertContext fmt_conv; -} DCAContext; - -static const uint16_t dca_vlc_offs[] = { - 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364, - 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508, - 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564, - 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240, - 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264, - 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622, -}; - -static av_cold void dca_init_vlcs(void) -{ - static int vlcs_initialized = 0; - int i, j, c = 14; - static VLC_TYPE dca_table[23622][2]; - - if (vlcs_initialized) - return; - - dca_bitalloc_index.offset = 1; - dca_bitalloc_index.wrap = 2; - for (i = 0; i < 5; i++) { - dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]]; - dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i]; - init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12, - bitalloc_12_bits[i], 1, 1, - bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); - } - dca_scalefactor.offset = -64; - dca_scalefactor.wrap = 2; - for (i = 0; i < 5; i++) { - dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]]; - dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5]; - init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129, - scales_bits[i], 1, 1, - scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); - } - dca_tmode.offset = 0; - dca_tmode.wrap = 1; - for (i = 0; i < 4; i++) { - dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]]; - dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10]; - init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4, - tmode_bits[i], 1, 1, - tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); - } - - for (i = 0; i < 10; i++) - for (j = 0; j < 7; j++) { - if (!bitalloc_codes[i][j]) - break; - dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i]; - dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4); - dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]]; - dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c]; - - init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j], - bitalloc_sizes[i], - bitalloc_bits[i][j], 1, 1, - bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC); - c++; - } - vlcs_initialized = 1; -} - -static inline void get_array(GetBitContext *gb, int *dst, int len, int bits) -{ - while (len--) - *dst++ = get_bits(gb, bits); -} - -static inline int dca_xxch2index(DCAContext *s, int xxch_ch) -{ - int i, base, mask; - - /* locate channel set containing the channel */ - for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1); - i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i]) - base += av_popcount(mask); - - return base + av_popcount(mask & (xxch_ch - 1)); -} - -static int dca_parse_audio_coding_header(DCAContext *s, int base_channel, - int xxch) -{ - int i, j; - static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 }; - static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 }; - static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 }; - int hdr_pos = 0, hdr_size = 0; - float sign, mag, scale_factor; - int this_chans, acc_mask; - int embedded_downmix; - int nchans, mask[8]; - int coeff, ichan; - - /* xxch has arbitrary sized audio coding headers */ - if (xxch) { - hdr_pos = get_bits_count(&s->gb); - hdr_size = get_bits(&s->gb, 7) + 1; - } - - nchans = get_bits(&s->gb, 3) + 1; - s->total_channels = nchans + base_channel; - s->prim_channels = s->total_channels; - - /* obtain speaker layout mask & downmix coefficients for XXCH */ - if (xxch) { - acc_mask = s->xxch_core_spkmask; - - this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6; - s->xxch_spk_masks[s->xxch_chset] = this_chans; - s->xxch_chset_nch[s->xxch_chset] = nchans; - - for (i = 0; i <= s->xxch_chset; i++) - acc_mask |= s->xxch_spk_masks[i]; - - /* check for downmixing information */ - if (get_bits1(&s->gb)) { - embedded_downmix = get_bits1(&s->gb); - scale_factor = - 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2]; - - s->xxch_dmix_sf[s->xxch_chset] = scale_factor; - - for (i = base_channel; i < s->prim_channels; i++) { - s->xxch_downmix |= (1 << i); - mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask); - } - - for (j = base_channel; j < s->prim_channels; j++) { - memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0])); - s->xxch_dmix_embedded |= (embedded_downmix << j); - for (i = 0; i < s->xxch_nbits_spk_mask; i++) { - if (mask[j] & (1 << i)) { - if ((1 << i) == DCA_XXCH_LFE1) { - av_log(s->avctx, AV_LOG_WARNING, - "DCA-XXCH: dmix to LFE1 not supported.\n"); - continue; - } - - coeff = get_bits(&s->gb, 7); - sign = (coeff & 64) ? 1.0 : -1.0; - mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2]; - ichan = dca_xxch2index(s, 1 << i); - s->xxch_dmix_coeff[j][ichan] = sign * mag; - } - } - } - } - } - - if (s->prim_channels > DCA_PRIM_CHANNELS_MAX) - s->prim_channels = DCA_PRIM_CHANNELS_MAX; - - - for (i = base_channel; i < s->prim_channels; i++) { - s->subband_activity[i] = get_bits(&s->gb, 5) + 2; - if (s->subband_activity[i] > DCA_SUBBANDS) - s->subband_activity[i] = DCA_SUBBANDS; - } - for (i = base_channel; i < s->prim_channels; i++) { - s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1; - if (s->vq_start_subband[i] > DCA_SUBBANDS) - s->vq_start_subband[i] = DCA_SUBBANDS; - } - get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3); - get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2); - get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3); - get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3); - - /* Get codebooks quantization indexes */ - if (!base_channel) - memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman)); - for (j = 1; j < 11; j++) - for (i = base_channel; i < s->prim_channels; i++) - s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]); - - /* Get scale factor adjustment */ - for (j = 0; j < 11; j++) - for (i = base_channel; i < s->prim_channels; i++) - s->scalefactor_adj[i][j] = 1; - - for (j = 1; j < 11; j++) - for (i = base_channel; i < s->prim_channels; i++) - if (s->quant_index_huffman[i][j] < thr[j]) - s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)]; - - if (!xxch) { - if (s->crc_present) { - /* Audio header CRC check */ - get_bits(&s->gb, 16); - } - } else { - /* Skip to the end of the header, also ignore CRC if present */ - i = get_bits_count(&s->gb); - if (hdr_pos + 8 * hdr_size > i) - skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i); - } - - s->current_subframe = 0; - s->current_subsubframe = 0; - -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes); - av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels); - for (i = base_channel; i < s->prim_channels; i++) { - av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n", - s->subband_activity[i]); - av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n", - s->vq_start_subband[i]); - av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n", - s->joint_intensity[i]); - av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n", - s->transient_huffman[i]); - av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n", - s->scalefactor_huffman[i]); - av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n", - s->bitalloc_huffman[i]); - av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:"); - for (j = 0; j < 11; j++) - av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:"); - for (j = 0; j < 11; j++) - av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } -#endif - - return 0; -} - -static int dca_parse_frame_header(DCAContext *s) -{ - init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8); - - /* Sync code */ - skip_bits_long(&s->gb, 32); - - /* Frame header */ - s->frame_type = get_bits(&s->gb, 1); - s->samples_deficit = get_bits(&s->gb, 5) + 1; - s->crc_present = get_bits(&s->gb, 1); - s->sample_blocks = get_bits(&s->gb, 7) + 1; - s->frame_size = get_bits(&s->gb, 14) + 1; - if (s->frame_size < 95) - return AVERROR_INVALIDDATA; - s->amode = get_bits(&s->gb, 6); - s->sample_rate = dca_sample_rates[get_bits(&s->gb, 4)]; - if (!s->sample_rate) - return AVERROR_INVALIDDATA; - s->bit_rate_index = get_bits(&s->gb, 5); - s->bit_rate = dca_bit_rates[s->bit_rate_index]; - if (!s->bit_rate) - return AVERROR_INVALIDDATA; - - s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */ - s->dynrange = get_bits(&s->gb, 1); - s->timestamp = get_bits(&s->gb, 1); - s->aux_data = get_bits(&s->gb, 1); - s->hdcd = get_bits(&s->gb, 1); - s->ext_descr = get_bits(&s->gb, 3); - s->ext_coding = get_bits(&s->gb, 1); - s->aspf = get_bits(&s->gb, 1); - s->lfe = get_bits(&s->gb, 2); - s->predictor_history = get_bits(&s->gb, 1); - - /* TODO: check CRC */ - if (s->crc_present) - s->header_crc = get_bits(&s->gb, 16); - - s->multirate_inter = get_bits(&s->gb, 1); - s->version = get_bits(&s->gb, 4); - s->copy_history = get_bits(&s->gb, 2); - s->source_pcm_res = get_bits(&s->gb, 3); - s->front_sum = get_bits(&s->gb, 1); - s->surround_sum = get_bits(&s->gb, 1); - s->dialog_norm = get_bits(&s->gb, 4); - - /* FIXME: channels mixing levels */ - s->output = s->amode; - if (s->lfe) - s->output |= DCA_LFE; - -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type); - av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit); - av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present); - av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n", - s->sample_blocks, s->sample_blocks * 32); - av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size); - av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n", - s->amode, dca_channels[s->amode]); - av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n", - s->sample_rate); - av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n", - s->bit_rate); - av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix); - av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange); - av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp); - av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data); - av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd); - av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr); - av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding); - av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf); - av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe); - av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n", - s->predictor_history); - av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc); - av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n", - s->multirate_inter); - av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version); - av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history); - av_log(s->avctx, AV_LOG_DEBUG, - "source pcm resolution: %i (%i bits/sample)\n", - s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]); - av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum); - av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum); - av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); -#endif - - /* Primary audio coding header */ - s->subframes = get_bits(&s->gb, 4) + 1; - - return dca_parse_audio_coding_header(s, 0, 0); -} - - -static inline int get_scale(GetBitContext *gb, int level, int value, int log2range) -{ - if (level < 5) { - /* huffman encoded */ - value += get_bitalloc(gb, &dca_scalefactor, level); - value = av_clip(value, 0, (1 << log2range) - 1); - } else if (level < 8) { - if (level + 1 > log2range) { - skip_bits(gb, level + 1 - log2range); - value = get_bits(gb, log2range); - } else { - value = get_bits(gb, level + 1); - } - } - return value; -} - -static int dca_subframe_header(DCAContext *s, int base_channel, int block_index) -{ - /* Primary audio coding side information */ - int j, k; - - if (get_bits_left(&s->gb) < 0) - return AVERROR_INVALIDDATA; - - if (!base_channel) { - s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1; - s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3); - } - - for (j = base_channel; j < s->prim_channels; j++) { - for (k = 0; k < s->subband_activity[j]; k++) - s->prediction_mode[j][k] = get_bits(&s->gb, 1); - } - - /* Get prediction codebook */ - for (j = base_channel; j < s->prim_channels; j++) { - for (k = 0; k < s->subband_activity[j]; k++) { - if (s->prediction_mode[j][k] > 0) { - /* (Prediction coefficient VQ address) */ - s->prediction_vq[j][k] = get_bits(&s->gb, 12); - } - } - } - - /* Bit allocation index */ - for (j = base_channel; j < s->prim_channels; j++) { - for (k = 0; k < s->vq_start_subband[j]; k++) { - if (s->bitalloc_huffman[j] == 6) - s->bitalloc[j][k] = get_bits(&s->gb, 5); - else if (s->bitalloc_huffman[j] == 5) - s->bitalloc[j][k] = get_bits(&s->gb, 4); - else if (s->bitalloc_huffman[j] == 7) { - av_log(s->avctx, AV_LOG_ERROR, - "Invalid bit allocation index\n"); - return AVERROR_INVALIDDATA; - } else { - s->bitalloc[j][k] = - get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]); - } - - if (s->bitalloc[j][k] > 26) { - // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n", - // j, k, s->bitalloc[j][k]); - return AVERROR_INVALIDDATA; - } - } - } - - /* Transition mode */ - for (j = base_channel; j < s->prim_channels; j++) { - for (k = 0; k < s->subband_activity[j]; k++) { - s->transition_mode[j][k] = 0; - if (s->subsubframes[s->current_subframe] > 1 && - k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) { - s->transition_mode[j][k] = - get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]); - } - } - } - - if (get_bits_left(&s->gb) < 0) - return AVERROR_INVALIDDATA; - - for (j = base_channel; j < s->prim_channels; j++) { - const uint32_t *scale_table; - int scale_sum, log_size; - - memset(s->scale_factor[j], 0, - s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2); - - if (s->scalefactor_huffman[j] == 6) { - scale_table = scale_factor_quant7; - log_size = 7; - } else { - scale_table = scale_factor_quant6; - log_size = 6; - } - - /* When huffman coded, only the difference is encoded */ - scale_sum = 0; - - for (k = 0; k < s->subband_activity[j]; k++) { - if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) { - scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size); - s->scale_factor[j][k][0] = scale_table[scale_sum]; - } - - if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) { - /* Get second scale factor */ - scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size); - s->scale_factor[j][k][1] = scale_table[scale_sum]; - } - } - } - - /* Joint subband scale factor codebook select */ - for (j = base_channel; j < s->prim_channels; j++) { - /* Transmitted only if joint subband coding enabled */ - if (s->joint_intensity[j] > 0) - s->joint_huff[j] = get_bits(&s->gb, 3); - } - - if (get_bits_left(&s->gb) < 0) - return AVERROR_INVALIDDATA; - - /* Scale factors for joint subband coding */ - for (j = base_channel; j < s->prim_channels; j++) { - int source_channel; - - /* Transmitted only if joint subband coding enabled */ - if (s->joint_intensity[j] > 0) { - int scale = 0; - source_channel = s->joint_intensity[j] - 1; - - /* When huffman coded, only the difference is encoded - * (is this valid as well for joint scales ???) */ - - for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) { - scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7); - s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */ - } - - if (!(s->debug_flag & 0x02)) { - av_log(s->avctx, AV_LOG_DEBUG, - "Joint stereo coding not supported\n"); - s->debug_flag |= 0x02; - } - } - } - - /* Stereo downmix coefficients */ - if (!base_channel && s->prim_channels > 2) { - if (s->downmix) { - for (j = base_channel; j < s->prim_channels; j++) { - s->downmix_coef[j][0] = get_bits(&s->gb, 7); - s->downmix_coef[j][1] = get_bits(&s->gb, 7); - } - } else { - int am = s->amode & DCA_CHANNEL_MASK; - if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) { - av_log(s->avctx, AV_LOG_ERROR, - "Invalid channel mode %d\n", am); - return AVERROR_INVALIDDATA; - } - for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) { - s->downmix_coef[j][0] = dca_default_coeffs[am][j][0]; - s->downmix_coef[j][1] = dca_default_coeffs[am][j][1]; - } - } - } - - /* Dynamic range coefficient */ - if (!base_channel && s->dynrange) - s->dynrange_coef = get_bits(&s->gb, 8); - - /* Side information CRC check word */ - if (s->crc_present) { - get_bits(&s->gb, 16); - } - - /* - * Primary audio data arrays - */ - - /* VQ encoded high frequency subbands */ - for (j = base_channel; j < s->prim_channels; j++) - for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++) - /* 1 vector -> 32 samples */ - s->high_freq_vq[j][k] = get_bits(&s->gb, 10); - - /* Low frequency effect data */ - if (!base_channel && s->lfe) { - int quant7; - /* LFE samples */ - int lfe_samples = 2 * s->lfe * (4 + block_index); - int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]); - float lfe_scale; - - for (j = lfe_samples; j < lfe_end_sample; j++) { - /* Signed 8 bits int */ - s->lfe_data[j] = get_sbits(&s->gb, 8); - } - - /* Scale factor index */ - quant7 = get_bits(&s->gb, 8); - if (quant7 > 127) { - av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n"); - return AVERROR_INVALIDDATA; - } - s->lfe_scale_factor = scale_factor_quant7[quant7]; - - /* Quantization step size * scale factor */ - lfe_scale = 0.035 * s->lfe_scale_factor; - - for (j = lfe_samples; j < lfe_end_sample; j++) - s->lfe_data[j] *= lfe_scale; - } - -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n", - s->subsubframes[s->current_subframe]); - av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n", - s->partial_samples[s->current_subframe]); - - for (j = base_channel; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:"); - for (k = 0; k < s->subband_activity[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - for (j = base_channel; j < s->prim_channels; j++) { - for (k = 0; k < s->subband_activity[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, - "prediction coefs: %f, %f, %f, %f\n", - (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192); - } - for (j = base_channel; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: "); - for (k = 0; k < s->vq_start_subband[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - for (j = base_channel; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:"); - for (k = 0; k < s->subband_activity[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - for (j = base_channel; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:"); - for (k = 0; k < s->subband_activity[j]; k++) { - if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) - av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]); - if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) - av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]); - } - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - for (j = base_channel; j < s->prim_channels; j++) { - if (s->joint_intensity[j] > 0) { - int source_channel = s->joint_intensity[j] - 1; - av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n"); - for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) - av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - } - if (!base_channel && s->prim_channels > 2 && s->downmix) { - av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n"); - for (j = 0; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j, - dca_downmix_coeffs[s->downmix_coef[j][0]]); - av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j, - dca_downmix_coeffs[s->downmix_coef[j][1]]); - } - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } - for (j = base_channel; j < s->prim_channels; j++) - for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]); - if (!base_channel && s->lfe) { - int lfe_samples = 2 * s->lfe * (4 + block_index); - int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]); - - av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n"); - for (j = lfe_samples; j < lfe_end_sample; j++) - av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]); - av_log(s->avctx, AV_LOG_DEBUG, "\n"); - } -#endif - - return 0; -} - -static void qmf_32_subbands(DCAContext *s, int chans, - float samples_in[32][8], float *samples_out, - float scale) -{ - const float *prCoeff; - int i; - - int sb_act = s->subband_activity[chans]; - int subindex; - - scale *= sqrt(1 / 8.0); - - /* Select filter */ - if (!s->multirate_inter) /* Non-perfect reconstruction */ - prCoeff = fir_32bands_nonperfect; - else /* Perfect reconstruction */ - prCoeff = fir_32bands_perfect; - - for (i = sb_act; i < 32; i++) - s->raXin[i] = 0.0; - - /* Reconstructed channel sample index */ - for (subindex = 0; subindex < 8; subindex++) { - /* Load in one sample from each subband and clear inactive subbands */ - for (i = 0; i < sb_act; i++) { - unsigned sign = (i - 1) & 2; - uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30; - AV_WN32A(&s->raXin[i], v); - } - - s->synth.synth_filter_float(&s->imdct, - s->subband_fir_hist[chans], - &s->hist_index[chans], - s->subband_fir_noidea[chans], prCoeff, - samples_out, s->raXin, scale); - samples_out += 32; - } -} - -static void lfe_interpolation_fir(DCAContext *s, int decimation_select, - int num_deci_sample, float *samples_in, - float *samples_out, float scale) -{ - /* samples_in: An array holding decimated samples. - * Samples in current subframe starts from samples_in[0], - * while samples_in[-1], samples_in[-2], ..., stores samples - * from last subframe as history. - * - * samples_out: An array holding interpolated samples - */ - - int decifactor; - const float *prCoeff; - int deciindex; - - /* Select decimation filter */ - if (decimation_select == 1) { - decifactor = 64; - prCoeff = lfe_fir_128; - } else { - decifactor = 32; - prCoeff = lfe_fir_64; - } - /* Interpolation */ - for (deciindex = 0; deciindex < num_deci_sample; deciindex++) { - s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale); - samples_in++; - samples_out += 2 * decifactor; - } -} - -/* downmixing routines */ -#define MIX_REAR1(samples, si1, rs, coef) \ - samples[i] += samples[si1] * coef[rs][0]; \ - samples[i+256] += samples[si1] * coef[rs][1]; - -#define MIX_REAR2(samples, si1, si2, rs, coef) \ - samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \ - samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1]; - -#define MIX_FRONT3(samples, coef) \ - t = samples[i + c]; \ - u = samples[i + l]; \ - v = samples[i + r]; \ - samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \ - samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1]; - -#define DOWNMIX_TO_STEREO(op1, op2) \ - for (i = 0; i < 256; i++) { \ - op1 \ - op2 \ - } - -static void dca_downmix(float *samples, int srcfmt, - int downmix_coef[DCA_PRIM_CHANNELS_MAX][2], - const int8_t *channel_mapping) -{ - int c, l, r, sl, sr, s; - int i; - float t, u, v; - float coef[DCA_PRIM_CHANNELS_MAX][2]; - - for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) { - coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]]; - coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]]; - } - - switch (srcfmt) { - case DCA_MONO: - case DCA_CHANNEL: - case DCA_STEREO_TOTAL: - case DCA_STEREO_SUMDIFF: - case DCA_4F2R: - av_log(NULL, 0, "Not implemented!\n"); - break; - case DCA_STEREO: - break; - case DCA_3F: - c = channel_mapping[0] * 256; - l = channel_mapping[1] * 256; - r = channel_mapping[2] * 256; - DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), ); - break; - case DCA_2F1R: - s = channel_mapping[2] * 256; - DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), ); - break; - case DCA_3F1R: - c = channel_mapping[0] * 256; - l = channel_mapping[1] * 256; - r = channel_mapping[2] * 256; - s = channel_mapping[3] * 256; - DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), - MIX_REAR1(samples, i + s, 3, coef)); - break; - case DCA_2F2R: - sl = channel_mapping[2] * 256; - sr = channel_mapping[3] * 256; - DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), ); - break; - case DCA_3F2R: - c = channel_mapping[0] * 256; - l = channel_mapping[1] * 256; - r = channel_mapping[2] * 256; - sl = channel_mapping[3] * 256; - sr = channel_mapping[4] * 256; - DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), - MIX_REAR2(samples, i + sl, i + sr, 3, coef)); - break; - } -} - - -#ifndef decode_blockcodes -/* Very compact version of the block code decoder that does not use table - * look-up but is slightly slower */ -static int decode_blockcode(int code, int levels, int *values) -{ - int i; - int offset = (levels - 1) >> 1; - - for (i = 0; i < 4; i++) { - int div = FASTDIV(code, levels); - values[i] = code - offset - div * levels; - code = div; - } - - return code; -} - -static int decode_blockcodes(int code1, int code2, int levels, int *values) -{ - return decode_blockcode(code1, levels, values) | - decode_blockcode(code2, levels, values + 4); -} -#endif - -static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 }; -static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 }; - -#ifndef int8x8_fmul_int32 -static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) -{ - float fscale = scale / 16.0; - int i; - for (i = 0; i < 8; i++) - dst[i] = src[i] * fscale; -} -#endif - -static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) -{ - int k, l; - int subsubframe = s->current_subsubframe; - - const float *quant_step_table; - - /* FIXME */ - float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; - LOCAL_ALIGNED_16(int, block, [8]); - - /* - * Audio data - */ - - /* Select quantization step size table */ - if (s->bit_rate_index == 0x1f) - quant_step_table = lossless_quant_d; - else - quant_step_table = lossy_quant_d; - - for (k = base_channel; k < s->prim_channels; k++) { - if (get_bits_left(&s->gb) < 0) - return AVERROR_INVALIDDATA; - - for (l = 0; l < s->vq_start_subband[k]; l++) { - int m; - - /* Select the mid-tread linear quantizer */ - int abits = s->bitalloc[k][l]; - - float quant_step_size = quant_step_table[abits]; - - /* - * Determine quantization index code book and its type - */ - - /* Select quantization index code book */ - int sel = s->quant_index_huffman[k][abits]; - - /* - * Extract bits from the bit stream - */ - if (!abits) { - memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0])); - } else { - /* Deal with transients */ - int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l]; - float rscale = quant_step_size * s->scale_factor[k][l][sfi] * - s->scalefactor_adj[k][sel]; - - if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) { - if (abits <= 7) { - /* Block code */ - int block_code1, block_code2, size, levels, err; - - size = abits_sizes[abits - 1]; - levels = abits_levels[abits - 1]; - - block_code1 = get_bits(&s->gb, size); - block_code2 = get_bits(&s->gb, size); - err = decode_blockcodes(block_code1, block_code2, - levels, block); - if (err) { - av_log(s->avctx, AV_LOG_ERROR, - "ERROR: block code look-up failed\n"); - return AVERROR_INVALIDDATA; - } - } else { - /* no coding */ - for (m = 0; m < 8; m++) - block[m] = get_sbits(&s->gb, abits - 3); - } - } else { - /* Huffman coded */ - for (m = 0; m < 8; m++) - block[m] = get_bitalloc(&s->gb, - &dca_smpl_bitalloc[abits], sel); - } - - s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l], - block, rscale, 8); - } - - /* - * Inverse ADPCM if in prediction mode - */ - if (s->prediction_mode[k][l]) { - int n; - for (m = 0; m < 8; m++) { - for (n = 1; n <= 4; n++) - if (m >= n) - subband_samples[k][l][m] += - (adpcm_vb[s->prediction_vq[k][l]][n - 1] * - subband_samples[k][l][m - n] / 8192); - else if (s->predictor_history) - subband_samples[k][l][m] += - (adpcm_vb[s->prediction_vq[k][l]][n - 1] * - s->subband_samples_hist[k][l][m - n + 4] / 8192); - } - } - } - - /* - * Decode VQ encoded high frequencies - */ - for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) { - /* 1 vector -> 32 samples but we only need the 8 samples - * for this subsubframe. */ - int hfvq = s->high_freq_vq[k][l]; - - if (!s->debug_flag & 0x01) { - av_log(s->avctx, AV_LOG_DEBUG, - "Stream with high frequencies VQ coding\n"); - s->debug_flag |= 0x01; - } - - int8x8_fmul_int32(subband_samples[k][l], - &high_freq_vq[hfvq][subsubframe * 8], - s->scale_factor[k][l][0]); - } - } - - /* Check for DSYNC after subsubframe */ - if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) { - if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */ -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n"); -#endif - } else { - av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n"); - } - } - - /* Backup predictor history for adpcm */ - for (k = base_channel; k < s->prim_channels; k++) - for (l = 0; l < s->vq_start_subband[k]; l++) - memcpy(s->subband_samples_hist[k][l], - &subband_samples[k][l][4], - 4 * sizeof(subband_samples[0][0][0])); - - return 0; -} - -static int dca_filter_channels(DCAContext *s, int block_index) -{ - float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; - int k; - - /* 32 subbands QMF */ - for (k = 0; k < s->prim_channels; k++) { -/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0, - 0, 8388608.0, 8388608.0 };*/ - qmf_32_subbands(s, k, subband_samples[k], - &s->samples[256 * s->channel_order_tab[k]], - M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */); - } - - /* Down mixing */ - if (s->avctx->request_channels == 2 && s->prim_channels > 2) { - dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab); - } - - /* Generate LFE samples for this subsubframe FIXME!!! */ - if (s->output & DCA_LFE) { - lfe_interpolation_fir(s, s->lfe, 2 * s->lfe, - s->lfe_data + 2 * s->lfe * (block_index + 4), - &s->samples[256 * s->lfe_index], - (1.0 / 256.0) * s->scale_bias); - /* Outputs 20bits pcm samples */ - } - - return 0; -} - - -static int dca_subframe_footer(DCAContext *s, int base_channel) -{ - int aux_data_count = 0, i; - - /* - * Unpack optional information - */ - - /* presumably optional information only appears in the core? */ - if (!base_channel) { - if (s->timestamp) - skip_bits_long(&s->gb, 32); - - if (s->aux_data) - aux_data_count = get_bits(&s->gb, 6); - - for (i = 0; i < aux_data_count; i++) - get_bits(&s->gb, 8); - - if (s->crc_present && (s->downmix || s->dynrange)) - get_bits(&s->gb, 16); - } - - return 0; -} - -/** - * Decode a dca frame block - * - * @param s pointer to the DCAContext - */ - -static int dca_decode_block(DCAContext *s, int base_channel, int block_index) -{ - int ret; - - /* Sanity check */ - if (s->current_subframe >= s->subframes) { - av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i", - s->current_subframe, s->subframes); - return AVERROR_INVALIDDATA; - } - - if (!s->current_subsubframe) { -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n"); -#endif - /* Read subframe header */ - if ((ret = dca_subframe_header(s, base_channel, block_index))) - return ret; - } - - /* Read subsubframe */ -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n"); -#endif - if ((ret = dca_subsubframe(s, base_channel, block_index))) - return ret; - - /* Update state */ - s->current_subsubframe++; - if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) { - s->current_subsubframe = 0; - s->current_subframe++; - } - if (s->current_subframe >= s->subframes) { -#ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n"); -#endif - /* Read subframe footer */ - if ((ret = dca_subframe_footer(s, base_channel))) - return ret; - } - - return 0; -} - -/** - * Return the number of channels in an ExSS speaker mask (HD) - */ -static int dca_exss_mask2count(int mask) -{ - /* count bits that mean speaker pairs twice */ - return av_popcount(mask) + - av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT | - DCA_EXSS_FRONT_LEFT_RIGHT | - DCA_EXSS_FRONT_HIGH_LEFT_RIGHT | - DCA_EXSS_WIDE_LEFT_RIGHT | - DCA_EXSS_SIDE_LEFT_RIGHT | - DCA_EXSS_SIDE_HIGH_LEFT_RIGHT | - DCA_EXSS_SIDE_REAR_LEFT_RIGHT | - DCA_EXSS_REAR_LEFT_RIGHT | - DCA_EXSS_REAR_HIGH_LEFT_RIGHT)); -} - -/** - * Skip mixing coefficients of a single mix out configuration (HD) - */ -static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch) -{ - int i; - - for (i = 0; i < channels; i++) { - int mix_map_mask = get_bits(gb, out_ch); - int num_coeffs = av_popcount(mix_map_mask); - skip_bits_long(gb, num_coeffs * 6); - } -} - -/** - * Parse extension substream asset header (HD) - */ -static int dca_exss_parse_asset_header(DCAContext *s) -{ - int header_pos = get_bits_count(&s->gb); - int header_size; - int channels = 0; - int embedded_stereo = 0; - int embedded_6ch = 0; - int drc_code_present; - int av_uninit(extensions_mask); - int i, j; - - if (get_bits_left(&s->gb) < 16) - return -1; - - /* We will parse just enough to get to the extensions bitmask with which - * we can set the profile value. */ - - header_size = get_bits(&s->gb, 9) + 1; - skip_bits(&s->gb, 3); // asset index - - if (s->static_fields) { - if (get_bits1(&s->gb)) - skip_bits(&s->gb, 4); // asset type descriptor - if (get_bits1(&s->gb)) - skip_bits_long(&s->gb, 24); // language descriptor - - if (get_bits1(&s->gb)) { - /* How can one fit 1024 bytes of text here if the maximum value - * for the asset header size field above was 512 bytes? */ - int text_length = get_bits(&s->gb, 10) + 1; - if (get_bits_left(&s->gb) < text_length * 8) - return -1; - skip_bits_long(&s->gb, text_length * 8); // info text - } - - skip_bits(&s->gb, 5); // bit resolution - 1 - skip_bits(&s->gb, 4); // max sample rate code - channels = get_bits(&s->gb, 8) + 1; - - if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers - int spkr_remap_sets; - int spkr_mask_size = 16; - int num_spkrs[7]; - - if (channels > 2) - embedded_stereo = get_bits1(&s->gb); - if (channels > 6) - embedded_6ch = get_bits1(&s->gb); - - if (get_bits1(&s->gb)) { - spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2; - skip_bits(&s->gb, spkr_mask_size); // spkr activity mask - } - - spkr_remap_sets = get_bits(&s->gb, 3); - - for (i = 0; i < spkr_remap_sets; i++) { - /* std layout mask for each remap set */ - num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size)); - } - - for (i = 0; i < spkr_remap_sets; i++) { - int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1; - if (get_bits_left(&s->gb) < 0) - return -1; - - for (j = 0; j < num_spkrs[i]; j++) { - int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps); - int num_dec_ch = av_popcount(remap_dec_ch_mask); - skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes - } - } - - } else { - skip_bits(&s->gb, 3); // representation type - } - } - - drc_code_present = get_bits1(&s->gb); - if (drc_code_present) - get_bits(&s->gb, 8); // drc code - - if (get_bits1(&s->gb)) - skip_bits(&s->gb, 5); // dialog normalization code - - if (drc_code_present && embedded_stereo) - get_bits(&s->gb, 8); // drc stereo code - - if (s->mix_metadata && get_bits1(&s->gb)) { - skip_bits(&s->gb, 1); // external mix - skip_bits(&s->gb, 6); // post mix gain code - - if (get_bits(&s->gb, 2) != 3) // mixer drc code - skip_bits(&s->gb, 3); // drc limit - else - skip_bits(&s->gb, 8); // custom drc code - - if (get_bits1(&s->gb)) // channel specific scaling - for (i = 0; i < s->num_mix_configs; i++) - skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes - else - skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes - - for (i = 0; i < s->num_mix_configs; i++) { - if (get_bits_left(&s->gb) < 0) - return -1; - dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]); - if (embedded_6ch) - dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]); - if (embedded_stereo) - dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]); - } - } - - switch (get_bits(&s->gb, 2)) { - case 0: extensions_mask = get_bits(&s->gb, 12); break; - case 1: extensions_mask = DCA_EXT_EXSS_XLL; break; - case 2: extensions_mask = DCA_EXT_EXSS_LBR; break; - case 3: extensions_mask = 0; /* aux coding */ break; - } - - /* not parsed further, we were only interested in the extensions mask */ - - if (get_bits_left(&s->gb) < 0) - return -1; - - if (get_bits_count(&s->gb) - header_pos > header_size * 8) { - av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n"); - return -1; - } - skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb)); - - if (extensions_mask & DCA_EXT_EXSS_XLL) - s->profile = FF_PROFILE_DTS_HD_MA; - else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 | - DCA_EXT_EXSS_XXCH)) - s->profile = FF_PROFILE_DTS_HD_HRA; - - if (!(extensions_mask & DCA_EXT_CORE)) - av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n"); - if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask) - av_log(s->avctx, AV_LOG_WARNING, - "DTS extensions detection mismatch (%d, %d)\n", - extensions_mask & DCA_CORE_EXTS, s->core_ext_mask); - - return 0; -} - -static int dca_xbr_parse_frame(DCAContext *s) -{ - int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2]; - int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX]; - int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS]; - int anctemp[DCA_CHSET_CHANS_MAX]; - int chset_fsize[DCA_CHSETS_MAX]; - int n_xbr_ch[DCA_CHSETS_MAX]; - int hdr_size, num_chsets, xbr_tmode, hdr_pos; - int i, j, k, l, chset, chan_base; - - av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n"); - - /* get bit position of sync header */ - hdr_pos = get_bits_count(&s->gb) - 32; - - hdr_size = get_bits(&s->gb, 6) + 1; - num_chsets = get_bits(&s->gb, 2) + 1; - - for(i = 0; i < num_chsets; i++) - chset_fsize[i] = get_bits(&s->gb, 14) + 1; - - xbr_tmode = get_bits1(&s->gb); - - for(i = 0; i < num_chsets; i++) { - n_xbr_ch[i] = get_bits(&s->gb, 3) + 1; - k = get_bits(&s->gb, 2) + 5; - for(j = 0; j < n_xbr_ch[i]; j++) - active_bands[i][j] = get_bits(&s->gb, k) + 1; - } - - /* skip to the end of the header */ - i = get_bits_count(&s->gb); - if(hdr_pos + hdr_size * 8 > i) - skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i); - - /* loop over the channel data sets */ - /* only decode as many channels as we've decoded base data for */ - for(chset = 0, chan_base = 0; - chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels; - chan_base += n_xbr_ch[chset++]) { - int start_posn = get_bits_count(&s->gb); - int subsubframe = 0; - int subframe = 0; - - /* loop over subframes */ - for (k = 0; k < (s->sample_blocks / 8); k++) { - /* parse header if we're on first subsubframe of a block */ - if(subsubframe == 0) { - /* Parse subframe header */ - for(i = 0; i < n_xbr_ch[chset]; i++) { - anctemp[i] = get_bits(&s->gb, 2) + 2; - } - - for(i = 0; i < n_xbr_ch[chset]; i++) { - get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]); - } - - for(i = 0; i < n_xbr_ch[chset]; i++) { - anctemp[i] = get_bits(&s->gb, 3); - if(anctemp[i] < 1) { - av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n"); - return AVERROR_INVALIDDATA; - } - } - - /* generate scale factors */ - for(i = 0; i < n_xbr_ch[chset]; i++) { - const uint32_t *scale_table; - int nbits; - - if (s->scalefactor_huffman[chan_base+i] == 6) { - scale_table = scale_factor_quant7; - } else { - scale_table = scale_factor_quant6; - } - - nbits = anctemp[i]; - - for(j = 0; j < active_bands[chset][i]; j++) { - if(abits_high[i][j] > 0) { - scale_table_high[i][j][0] = - scale_table[get_bits(&s->gb, nbits)]; - - if(xbr_tmode && s->transition_mode[i][j]) { - scale_table_high[i][j][1] = - scale_table[get_bits(&s->gb, nbits)]; - } - } - } - } - } - - /* decode audio array for this block */ - for(i = 0; i < n_xbr_ch[chset]; i++) { - for(j = 0; j < active_bands[chset][i]; j++) { - const int xbr_abits = abits_high[i][j]; - const float quant_step_size = lossless_quant_d[xbr_abits]; - const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j]; - const float rscale = quant_step_size * scale_table_high[i][j][sfi]; - float *subband_samples = s->subband_samples[k][chan_base+i][j]; - int block[8]; - - if(xbr_abits <= 0) - continue; - - if(xbr_abits > 7) { - get_array(&s->gb, block, 8, xbr_abits - 3); - } else { - int block_code1, block_code2, size, levels, err; - - size = abits_sizes[xbr_abits - 1]; - levels = abits_levels[xbr_abits - 1]; - - block_code1 = get_bits(&s->gb, size); - block_code2 = get_bits(&s->gb, size); - err = decode_blockcodes(block_code1, block_code2, - levels, block); - if (err) { - av_log(s->avctx, AV_LOG_ERROR, - "ERROR: DTS-XBR: block code look-up failed\n"); - return AVERROR_INVALIDDATA; - } - } - - /* scale & sum into subband */ - for(l = 0; l < 8; l++) - subband_samples[l] += (float)block[l] * rscale; - } - } - - /* check DSYNC marker */ - if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) { - if(get_bits(&s->gb, 16) != 0xffff) { - av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n"); - return AVERROR_INVALIDDATA; - } - } - - /* advance sub-sub-frame index */ - if(++subsubframe >= s->subsubframes[subframe]) { - subsubframe = 0; - subframe++; - } - } - - /* skip to next channel set */ - i = get_bits_count(&s->gb); - if(start_posn + chset_fsize[chset] * 8 != i) { - j = start_posn + chset_fsize[chset] * 8 - i; - if(j < 0 || j >= 8) - av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set," - " skipping further than expected (%d bits)\n", j); - skip_bits_long(&s->gb, j); - } - } - - return 0; -} - -/* parse initial header for XXCH and dump details */ -static int dca_xxch_decode_frame(DCAContext *s) -{ - int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos; - int i, chset, base_channel, chstart, fsize[8]; - - /* assume header word has already been parsed */ - hdr_pos = get_bits_count(&s->gb) - 32; - hdr_size = get_bits(&s->gb, 6) + 1; - chhdr_crc = get_bits1(&s->gb); - spkmsk_bits = get_bits(&s->gb, 5) + 1; - num_chsets = get_bits(&s->gb, 2) + 1; - - for (i = 0; i < num_chsets; i++) - fsize[i] = get_bits(&s->gb, 14) + 1; - - core_spk = get_bits(&s->gb, spkmsk_bits); - s->xxch_core_spkmask = core_spk; - s->xxch_nbits_spk_mask = spkmsk_bits; - s->xxch_downmix = 0; - s->xxch_dmix_embedded = 0; - - /* skip to the end of the header */ - i = get_bits_count(&s->gb); - if (hdr_pos + hdr_size * 8 > i) - skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i); - - for (chset = 0; chset < num_chsets; chset++) { - chstart = get_bits_count(&s->gb); - base_channel = s->prim_channels; - s->xxch_chset = chset; - - /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs. - 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */ - dca_parse_audio_coding_header(s, base_channel, 1); - - /* decode channel data */ - for (i = 0; i < (s->sample_blocks / 8); i++) { - if (dca_decode_block(s, base_channel, i)) { - av_log(s->avctx, AV_LOG_ERROR, - "Error decoding DTS-XXCH extension\n"); - continue; - } - } - - /* skip to end of this section */ - i = get_bits_count(&s->gb); - if (chstart + fsize[chset] * 8 > i) - skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i); - } - s->xxch_chset = num_chsets; - - return 0; -} - -/** - * Parse extension substream header (HD) - */ -static void dca_exss_parse_header(DCAContext *s) -{ - int asset_size[8]; - int ss_index; - int blownup; - int num_audiop = 1; - int num_assets = 1; - int active_ss_mask[8]; - int i, j; - int start_posn; - int hdrsize; - uint32_t mkr; - - if (get_bits_left(&s->gb) < 52) - return; - - start_posn = get_bits_count(&s->gb) - 32; - - skip_bits(&s->gb, 8); // user data - ss_index = get_bits(&s->gb, 2); - - blownup = get_bits1(&s->gb); - hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size - skip_bits(&s->gb, 16 + 4 * blownup); // hd_size - - s->static_fields = get_bits1(&s->gb); - if (s->static_fields) { - skip_bits(&s->gb, 2); // reference clock code - skip_bits(&s->gb, 3); // frame duration code - - if (get_bits1(&s->gb)) - skip_bits_long(&s->gb, 36); // timestamp - - /* a single stream can contain multiple audio assets that can be - * combined to form multiple audio presentations */ - - num_audiop = get_bits(&s->gb, 3) + 1; - if (num_audiop > 1) { - av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations."); - /* ignore such streams for now */ - return; - } - - num_assets = get_bits(&s->gb, 3) + 1; - if (num_assets > 1) { - av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets."); - /* ignore such streams for now */ - return; - } - - for (i = 0; i < num_audiop; i++) - active_ss_mask[i] = get_bits(&s->gb, ss_index + 1); - - for (i = 0; i < num_audiop; i++) - for (j = 0; j <= ss_index; j++) - if (active_ss_mask[i] & (1 << j)) - skip_bits(&s->gb, 8); // active asset mask - - s->mix_metadata = get_bits1(&s->gb); - if (s->mix_metadata) { - int mix_out_mask_size; - - skip_bits(&s->gb, 2); // adjustment level - mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2; - s->num_mix_configs = get_bits(&s->gb, 2) + 1; - - for (i = 0; i < s->num_mix_configs; i++) { - int mix_out_mask = get_bits(&s->gb, mix_out_mask_size); - s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask); - } - } - } - - for (i = 0; i < num_assets; i++) - asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup); - - for (i = 0; i < num_assets; i++) { - if (dca_exss_parse_asset_header(s)) - return; - } - - /* not parsed further, we were only interested in the extensions mask - * from the asset header */ - - if (num_assets > 0) { - j = get_bits_count(&s->gb); - if (start_posn + hdrsize * 8 > j) - skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j); - - for (i = 0; i < num_assets; i++) { - start_posn = get_bits_count(&s->gb); - mkr = get_bits_long(&s->gb, 32); - - /* parse extensions that we know about */ - if (mkr == 0x655e315e) { - dca_xbr_parse_frame(s); - } else if (mkr == 0x47004a03) { - dca_xxch_decode_frame(s); - s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */ - } else { - av_log(s->avctx, AV_LOG_DEBUG, - "DTS-ExSS: unknown marker = 0x%08x\n", mkr); - } - - /* skip to end of block */ - j = get_bits_count(&s->gb); - if (start_posn + asset_size[i] * 8 > j) - skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j); - } - } -} - -/** - * Main frame decoding function - * FIXME add arguments - */ -static int dca_decode_frame(AVCodecContext *avctx, void *data, - int *got_frame_ptr, AVPacket *avpkt) -{ - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - int channel_mask; - int channel_layout; - int lfe_samples; - int num_core_channels = 0; - int i, ret; - float *samples_flt; - float *src_chan; - float *dst_chan; - int16_t *samples_s16; - DCAContext *s = avctx->priv_data; - int core_ss_end; - int channels; - float scale; - int achan; - int chset; - int mask; - int lavc; - int posn; - int j, k; - int ch; - int endch; - - s->xch_present = 0; - - s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer, - DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE); - if (s->dca_buffer_size == AVERROR_INVALIDDATA) { - av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n"); - return AVERROR_INVALIDDATA; - } - - init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8); - if ((ret = dca_parse_frame_header(s)) < 0) { - //seems like the frame is corrupt, try with the next one - return ret; - } - //set AVCodec values with parsed data - avctx->sample_rate = s->sample_rate; - avctx->bit_rate = s->bit_rate; - - s->profile = FF_PROFILE_DTS; - - for (i = 0; i < (s->sample_blocks / 8); i++) { - if ((ret = dca_decode_block(s, 0, i))) { - av_log(avctx, AV_LOG_ERROR, "error decoding block\n"); - return ret; - } - } - - /* record number of core channels incase less than max channels are requested */ - num_core_channels = s->prim_channels; - - if (s->ext_coding) - s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr]; - else - s->core_ext_mask = 0; - - core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8; - - /* only scan for extensions if ext_descr was unknown or indicated a - * supported XCh extension */ - if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) { - - /* if ext_descr was unknown, clear s->core_ext_mask so that the - * extensions scan can fill it up */ - s->core_ext_mask = FFMAX(s->core_ext_mask, 0); - - /* extensions start at 32-bit boundaries into bitstream */ - skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); - - while (core_ss_end - get_bits_count(&s->gb) >= 32) { - uint32_t bits = get_bits_long(&s->gb, 32); - - switch (bits) { - case 0x5a5a5a5a: { - int ext_amode, xch_fsize; - - s->xch_base_channel = s->prim_channels; - - /* validate sync word using XCHFSIZE field */ - xch_fsize = show_bits(&s->gb, 10); - if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) && - (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1)) - continue; - - /* skip length-to-end-of-frame field for the moment */ - skip_bits(&s->gb, 10); - - s->core_ext_mask |= DCA_EXT_XCH; - - /* extension amode(number of channels in extension) should be 1 */ - /* AFAIK XCh is not used for more channels */ - if ((ext_amode = get_bits(&s->gb, 4)) != 1) { - av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not" - " supported!\n", ext_amode); - continue; - } - - /* much like core primary audio coding header */ - dca_parse_audio_coding_header(s, s->xch_base_channel, 0); - - for (i = 0; i < (s->sample_blocks / 8); i++) - if ((ret = dca_decode_block(s, s->xch_base_channel, i))) { - av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n"); - continue; - } - - s->xch_present = 1; - break; - } - case 0x47004a03: - /* XXCh: extended channels */ - /* usually found either in core or HD part in DTS-HD HRA streams, - * but not in DTS-ES which contains XCh extensions instead */ - s->core_ext_mask |= DCA_EXT_XXCH; - dca_xxch_decode_frame(s); - break; - - case 0x1d95f262: { - int fsize96 = show_bits(&s->gb, 12) + 1; - if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96) - continue; - - av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n", - get_bits_count(&s->gb)); - skip_bits(&s->gb, 12); - av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96); - av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4)); - - s->core_ext_mask |= DCA_EXT_X96; - break; - } - } - - skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); - } - } else { - /* no supported extensions, skip the rest of the core substream */ - skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb)); - } - - if (s->core_ext_mask & DCA_EXT_X96) - s->profile = FF_PROFILE_DTS_96_24; - else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) - s->profile = FF_PROFILE_DTS_ES; - - /* check for ExSS (HD part) */ - if (s->dca_buffer_size - s->frame_size > 32 && - get_bits_long(&s->gb, 32) == DCA_HD_MARKER) - dca_exss_parse_header(s); - - avctx->profile = s->profile; - - channels = s->prim_channels + !!s->lfe; - - /* If we have XXCH then the channel layout is managed differently */ - /* note that XLL will also have another way to do things */ - if (!(s->core_ext_mask & DCA_EXT_XXCH) - || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0 - && avctx->request_channels - < num_core_channels + !!s->lfe + s->xxch_chset_nch[0])) - { /* xxx should also do MA extensions */ - if (s->amode < 16) { - avctx->channel_layout = dca_core_channel_layout[s->amode]; - - if (s->xch_present && (!avctx->request_channels || - avctx->request_channels - > num_core_channels + !!s->lfe)) { - avctx->channel_layout |= AV_CH_BACK_CENTER; - if (s->lfe) { - avctx->channel_layout |= AV_CH_LOW_FREQUENCY; - s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode]; - } else { - s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode]; - } - } else { - channels = num_core_channels + !!s->lfe; - s->xch_present = 0; /* disable further xch processing */ - if (s->lfe) { - avctx->channel_layout |= AV_CH_LOW_FREQUENCY; - s->channel_order_tab = dca_channel_reorder_lfe[s->amode]; - } else - s->channel_order_tab = dca_channel_reorder_nolfe[s->amode]; - } - - if (channels > !!s->lfe && - s->channel_order_tab[channels - 1 - !!s->lfe] < 0) - return AVERROR_INVALIDDATA; - - if (avctx->request_channels == 2 && s->prim_channels > 2) { - channels = 2; - s->output = DCA_STEREO; - avctx->channel_layout = AV_CH_LAYOUT_STEREO; - } - else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) { - static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }; - s->channel_order_tab = dca_channel_order_native; - } - s->lfe_index = dca_lfe_index[s->amode]; - } else { - av_log(avctx, AV_LOG_ERROR, - "Non standard configuration %d !\n", s->amode); - return AVERROR_INVALIDDATA; - } - - s->xxch_downmix = 0; - } else { - /* we only get here if an XXCH channel set can be added to the mix */ - channel_mask = s->xxch_core_spkmask; - - if (avctx->request_channels > 0 - && avctx->request_channels < s->prim_channels) { - channels = num_core_channels + !!s->lfe; - for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i] - <= avctx->request_channels; i++) { - channels += s->xxch_chset_nch[i]; - channel_mask |= s->xxch_spk_masks[i]; - } - } else { - channels = s->prim_channels + !!s->lfe; - for (i = 0; i < s->xxch_chset; i++) { - channel_mask |= s->xxch_spk_masks[i]; - } - } - - /* Given the DTS spec'ed channel mask, generate an avcodec version */ - channel_layout = 0; - for (i = 0; i < s->xxch_nbits_spk_mask; ++i) { - if (channel_mask & (1 << i)) { - channel_layout |= map_xxch_to_native[i]; - } - } - - /* make sure that we have managed to get equivelant dts/avcodec channel - * masks in some sense -- unfortunately some channels could overlap */ - if (av_popcount(channel_mask) != av_popcount(channel_layout)) { - av_log(avctx, AV_LOG_DEBUG, - "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n"); - return AVERROR_INVALIDDATA; - } - - avctx->channel_layout = channel_layout; - - if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) { - /* Estimate DTS --> avcodec ordering table */ - for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) { - mask = chset >= 0 ? s->xxch_spk_masks[chset] - : s->xxch_core_spkmask; - for (i = 0; i < s->xxch_nbits_spk_mask; i++) { - if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) { - lavc = map_xxch_to_native[i]; - posn = av_popcount(channel_layout & (lavc - 1)); - s->xxch_order_tab[j++] = posn; - } - } - } - - s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1)); - } else { /* native ordering */ - for (i = 0; i < channels; i++) - s->xxch_order_tab[i] = i; - - s->lfe_index = channels - 1; - } - - s->channel_order_tab = s->xxch_order_tab; - } - - if (avctx->channels != channels) { - if (avctx->channels) - av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels); - avctx->channels = channels; - } - - /* get output buffer */ - s->frame.nb_samples = 256 * (s->sample_blocks / 8); - if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return ret; - } - samples_flt = (float *) s->frame.data[0]; - samples_s16 = (int16_t *) s->frame.data[0]; - - /* filter to get final output */ - for (i = 0; i < (s->sample_blocks / 8); i++) { - dca_filter_channels(s, i); - - /* If this was marked as a DTS-ES stream we need to subtract back- */ - /* channel from SL & SR to remove matrixed back-channel signal */ - if ((s->source_pcm_res & 1) && s->xch_present) { - float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256; - float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256; - float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256; - s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256); - s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256); - } - - /* If stream contains XXCH, we might need to undo an embedded downmix */ - if (s->xxch_dmix_embedded) { - /* Loop over channel sets in turn */ - ch = num_core_channels; - for (chset = 0; chset < s->xxch_chset; chset++) { - endch = ch + s->xxch_chset_nch[chset]; - mask = s->xxch_dmix_embedded; - - /* undo downmix */ - for (j = ch; j < endch; j++) { - if (mask & (1 << j)) { /* this channel has been mixed-out */ - src_chan = s->samples + s->channel_order_tab[j] * 256; - for (k = 0; k < endch; k++) { - achan = s->channel_order_tab[k]; - scale = s->xxch_dmix_coeff[j][k]; - if (scale != 0.0) { - dst_chan = s->samples + achan * 256; - s->fdsp.vector_fmac_scalar(dst_chan, src_chan, - -scale, 256); - } - } - } - } - - /* if a downmix has been embedded then undo the pre-scaling */ - if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) { - scale = s->xxch_dmix_sf[chset]; - - for (j = 0; j < ch; j++) { - src_chan = s->samples + s->channel_order_tab[j] * 256; - for (k = 0; k < 256; k++) - src_chan[k] *= scale; - } - - /* LFE channel is always part of core, scale if it exists */ - if (s->lfe) { - src_chan = s->samples + s->lfe_index * 256; - for (k = 0; k < 256; k++) - src_chan[k] *= scale; - } - } - - ch = endch; - } - - } - - if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) { - s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256, - channels); - samples_flt += 256 * channels; - } else { - s->fmt_conv.float_to_int16_interleave(samples_s16, - s->samples_chanptr, 256, - channels); - samples_s16 += 256 * channels; - } - } - - /* update lfe history */ - lfe_samples = 2 * s->lfe * (s->sample_blocks / 8); - for (i = 0; i < 2 * s->lfe * 4; i++) - s->lfe_data[i] = s->lfe_data[i + lfe_samples]; - - *got_frame_ptr = 1; - *(AVFrame *) data = s->frame; - - return buf_size; -} - - - -/** - * DCA initialization - * - * @param avctx pointer to the AVCodecContext - */ - -static av_cold int dca_decode_init(AVCodecContext *avctx) -{ - DCAContext *s = avctx->priv_data; - int i; - - s->avctx = avctx; - dca_init_vlcs(); - - avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT); - ff_mdct_init(&s->imdct, 6, 1, 1.0); - ff_synth_filter_init(&s->synth); - ff_dcadsp_init(&s->dcadsp); - ff_fmt_convert_init(&s->fmt_conv, avctx); - - for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++) - s->samples_chanptr[i] = s->samples + i * 256; - - if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) { - avctx->sample_fmt = AV_SAMPLE_FMT_FLT; - s->scale_bias = 1.0 / 32768.0; - } else { - avctx->sample_fmt = AV_SAMPLE_FMT_S16; - s->scale_bias = 1.0; - } - - /* allow downmixing to stereo */ - if (avctx->channels > 0 && avctx->request_channels < avctx->channels && - avctx->request_channels == 2) { - avctx->channels = avctx->request_channels; - } - - avcodec_get_frame_defaults(&s->frame); - avctx->coded_frame = &s->frame; - - return 0; -} - -static av_cold int dca_decode_end(AVCodecContext *avctx) -{ - DCAContext *s = avctx->priv_data; - ff_mdct_end(&s->imdct); - return 0; -} - -static const AVProfile profiles[] = { - { FF_PROFILE_DTS, "DTS" }, - { FF_PROFILE_DTS_ES, "DTS-ES" }, - { FF_PROFILE_DTS_96_24, "DTS 96/24" }, - { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" }, - { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" }, - { FF_PROFILE_UNKNOWN }, -}; - -AVCodec ff_dca_decoder = { - .name = "dca", - .type = AVMEDIA_TYPE_AUDIO, - .id = CODEC_ID_DTS, - .priv_data_size = sizeof(DCAContext), - .init = dca_decode_init, - .decode = dca_decode_frame, - .close = dca_decode_end, - .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"), - .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1, - .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT, - AV_SAMPLE_FMT_S16, - AV_SAMPLE_FMT_NONE }, - .profiles = NULL_IF_CONFIG_SMALL(profiles), +const uint32_t avpriv_dca_sample_rates[16] = +{ + 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0, + 12000, 24000, 48000, 96000, 192000 }; diff --git a/libavcodec/dca.h b/libavcodec/dca.h index 02c0a51ea8..4d2a829d00 100644 --- a/libavcodec/dca.h +++ b/libavcodec/dca.h @@ -25,6 +25,8 @@ #ifndef AVCODEC_DCA_H #define AVCODEC_DCA_H +#include + /** DCA syncwords, also used for bitstream type detection */ #define DCA_MARKER_RAW_BE 0x7FFE8001 #define DCA_MARKER_RAW_LE 0xFE7F0180 @@ -34,4 +36,6 @@ /** DCA-HD specific block starts with this marker. */ #define DCA_HD_MARKER 0x64582025 +extern const uint32_t avpriv_dca_sample_rates[16]; + #endif /* AVCODEC_DCA_H */ diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c index 9a35e020fc..62bcf2bd5a 100644 --- a/libavcodec/dca_parser.c +++ b/libavcodec/dca_parser.c @@ -24,7 +24,6 @@ #include "parser.h" #include "dca.h" -#include "dcadata.h" #include "dca_parser.h" #include "get_bits.h" #include "put_bits.h" @@ -160,7 +159,7 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration, skip_bits(&gb, 20); sr_code = get_bits(&gb, 4); - *sample_rate = dca_sample_rates[sr_code]; + *sample_rate = avpriv_dca_sample_rates[sr_code]; if (*sample_rate == 0) return AVERROR_INVALIDDATA; diff --git a/libavcodec/dcadata.h b/libavcodec/dcadata.h index 98dfd89586..15df49eba1 100644 --- a/libavcodec/dcadata.h +++ b/libavcodec/dcadata.h @@ -28,12 +28,6 @@ /* Generic tables */ -static const uint32_t dca_sample_rates[16] = -{ - 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0, - 12000, 24000, 48000, 96000, 192000 -}; - static const uint32_t dca_bit_rates[32] = { 32000, 56000, 64000, 96000, 112000, 128000, diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c new file mode 100644 index 0000000000..9d75926103 --- /dev/null +++ b/libavcodec/dcadec.c @@ -0,0 +1,2507 @@ +/* + * DCA compatible decoder + * Copyright (C) 2004 Gildas Bazin + * Copyright (C) 2004 Benjamin Zores + * Copyright (C) 2006 Benjamin Larsson + * Copyright (C) 2007 Konstantin Shishkov + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include + +#include "libavutil/common.h" +#include "libavutil/float_dsp.h" +#include "libavutil/intmath.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/mathematics.h" +#include "libavutil/audioconvert.h" +#include "avcodec.h" +#include "dsputil.h" +#include "fft.h" +#include "get_bits.h" +#include "put_bits.h" +#include "dcadata.h" +#include "dcahuff.h" +#include "dca.h" +#include "dca_parser.h" +#include "synth_filter.h" +#include "dcadsp.h" +#include "fmtconvert.h" + +#if ARCH_ARM +# include "arm/dca.h" +#endif + +//#define TRACE + +#define DCA_PRIM_CHANNELS_MAX (7) +#define DCA_SUBBANDS (64) +#define DCA_ABITS_MAX (32) /* Should be 28 */ +#define DCA_SUBSUBFRAMES_MAX (4) +#define DCA_SUBFRAMES_MAX (16) +#define DCA_BLOCKS_MAX (16) +#define DCA_LFE_MAX (3) +#define DCA_CHSETS_MAX (4) +#define DCA_CHSET_CHANS_MAX (8) + +enum DCAMode { + DCA_MONO = 0, + DCA_CHANNEL, + DCA_STEREO, + DCA_STEREO_SUMDIFF, + DCA_STEREO_TOTAL, + DCA_3F, + DCA_2F1R, + DCA_3F1R, + DCA_2F2R, + DCA_3F2R, + DCA_4F2R +}; + +/* these are unconfirmed but should be mostly correct */ +enum DCAExSSSpeakerMask { + DCA_EXSS_FRONT_CENTER = 0x0001, + DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002, + DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004, + DCA_EXSS_LFE = 0x0008, + DCA_EXSS_REAR_CENTER = 0x0010, + DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020, + DCA_EXSS_REAR_LEFT_RIGHT = 0x0040, + DCA_EXSS_FRONT_HIGH_CENTER = 0x0080, + DCA_EXSS_OVERHEAD = 0x0100, + DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200, + DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400, + DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800, + DCA_EXSS_LFE2 = 0x1000, + DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000, + DCA_EXSS_REAR_HIGH_CENTER = 0x4000, + DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000, +}; + +enum DCAXxchSpeakerMask { + DCA_XXCH_FRONT_CENTER = 0x0000001, + DCA_XXCH_FRONT_LEFT = 0x0000002, + DCA_XXCH_FRONT_RIGHT = 0x0000004, + DCA_XXCH_SIDE_REAR_LEFT = 0x0000008, + DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010, + DCA_XXCH_LFE1 = 0x0000020, + DCA_XXCH_REAR_CENTER = 0x0000040, + DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080, + DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100, + DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200, + DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400, + DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800, + DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000, + DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000, + DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000, + DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000, + DCA_XXCH_LFE2 = 0x0010000, + DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000, + DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000, + DCA_XXCH_OVERHEAD = 0x0080000, + DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000, + DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000, + DCA_XXCH_REAR_HIGH_CENTER = 0x0400000, + DCA_XXCH_REAR_HIGH_LEFT = 0x0800000, + DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000, + DCA_XXCH_REAR_LOW_CENTER = 0x2000000, + DCA_XXCH_REAR_LOW_LEFT = 0x4000000, + DCA_XXCH_REAR_LOW_RIGHT = 0x8000000, +}; + +static const uint32_t map_xxch_to_native[28] = { + AV_CH_FRONT_CENTER, + AV_CH_FRONT_LEFT, + AV_CH_FRONT_RIGHT, + AV_CH_SIDE_LEFT, + AV_CH_SIDE_RIGHT, + AV_CH_LOW_FREQUENCY, + AV_CH_BACK_CENTER, + AV_CH_BACK_LEFT, + AV_CH_BACK_RIGHT, + AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */ + AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */ + AV_CH_FRONT_LEFT_OF_CENTER, + AV_CH_FRONT_RIGHT_OF_CENTER, + AV_CH_TOP_FRONT_LEFT, + AV_CH_TOP_FRONT_CENTER, + AV_CH_TOP_FRONT_RIGHT, + AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */ + AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */ + AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */ + AV_CH_TOP_CENTER, /* overhead */ + AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */ + AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */ + AV_CH_TOP_BACK_CENTER, + AV_CH_TOP_BACK_LEFT, + AV_CH_TOP_BACK_RIGHT, + AV_CH_BACK_CENTER, /* rear low center -- dup */ + AV_CH_BACK_LEFT, /* rear low left -- dup */ + AV_CH_BACK_RIGHT /* read low right -- dup */ +}; + +enum DCAExtensionMask { + DCA_EXT_CORE = 0x001, ///< core in core substream + DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream + DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream + DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream + DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream) + DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS + DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS + DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS + DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS + DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS +}; + +/* -1 are reserved or unknown */ +static const int dca_ext_audio_descr_mask[] = { + DCA_EXT_XCH, + -1, + DCA_EXT_X96, + DCA_EXT_XCH | DCA_EXT_X96, + -1, + -1, + DCA_EXT_XXCH, + -1, +}; + +/* extensions that reside in core substream */ +#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96) + +/* Tables for mapping dts channel configurations to libavcodec multichannel api. + * Some compromises have been made for special configurations. Most configurations + * are never used so complete accuracy is not needed. + * + * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead. + * S -> side, when both rear and back are configured move one of them to the side channel + * OV -> center back + * All 2 channel configurations -> AV_CH_LAYOUT_STEREO + */ +static const uint64_t dca_core_channel_layout[] = { + AV_CH_FRONT_CENTER, ///< 1, A + AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono) + AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo) + AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference) + AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total) + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R + AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT | + AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | + AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV + + AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER | + AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | + AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | + AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | + AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2 + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | + AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | + AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR +}; + +static const int8_t dca_lfe_index[] = { + 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3 +}; + +static const int8_t dca_channel_reorder_lfe[][9] = { + { 0, -1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, -1, -1, -1, -1, -1, -1}, + { 0, 1, 3, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, 4, -1, -1, -1, -1, -1}, + { 0, 1, 3, 4, -1, -1, -1, -1, -1}, + { 2, 0, 1, 4, 5, -1, -1, -1, -1}, + { 3, 4, 0, 1, 5, 6, -1, -1, -1}, + { 2, 0, 1, 4, 5, 6, -1, -1, -1}, + { 0, 6, 4, 5, 2, 3, -1, -1, -1}, + { 4, 2, 5, 0, 1, 6, 7, -1, -1}, + { 5, 6, 0, 1, 7, 3, 8, 4, -1}, + { 4, 2, 5, 0, 1, 6, 8, 7, -1}, +}; + +static const int8_t dca_channel_reorder_lfe_xch[][9] = { + { 0, 2, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, 3, -1, -1, -1, -1, -1, -1}, + { 0, 1, 3, -1, -1, -1, -1, -1, -1}, + { 0, 1, 3, -1, -1, -1, -1, -1, -1}, + { 0, 1, 3, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, 4, -1, -1, -1, -1, -1}, + { 0, 1, 3, 4, -1, -1, -1, -1, -1}, + { 2, 0, 1, 4, 5, -1, -1, -1, -1}, + { 0, 1, 4, 5, 3, -1, -1, -1, -1}, + { 2, 0, 1, 5, 6, 4, -1, -1, -1}, + { 3, 4, 0, 1, 6, 7, 5, -1, -1}, + { 2, 0, 1, 4, 5, 6, 7, -1, -1}, + { 0, 6, 4, 5, 2, 3, 7, -1, -1}, + { 4, 2, 5, 0, 1, 7, 8, 6, -1}, + { 5, 6, 0, 1, 8, 3, 9, 4, 7}, + { 4, 2, 5, 0, 1, 6, 9, 8, 7}, +}; + +static const int8_t dca_channel_reorder_nolfe[][9] = { + { 0, -1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, -1, -1, -1, -1, -1, -1}, + { 0, 1, 2, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, 3, -1, -1, -1, -1, -1}, + { 0, 1, 2, 3, -1, -1, -1, -1, -1}, + { 2, 0, 1, 3, 4, -1, -1, -1, -1}, + { 2, 3, 0, 1, 4, 5, -1, -1, -1}, + { 2, 0, 1, 3, 4, 5, -1, -1, -1}, + { 0, 5, 3, 4, 1, 2, -1, -1, -1}, + { 3, 2, 4, 0, 1, 5, 6, -1, -1}, + { 4, 5, 0, 1, 6, 2, 7, 3, -1}, + { 3, 2, 4, 0, 1, 5, 7, 6, -1}, +}; + +static const int8_t dca_channel_reorder_nolfe_xch[][9] = { + { 0, 1, -1, -1, -1, -1, -1, -1, -1}, + { 0, 1, 2, -1, -1, -1, -1, -1, -1}, + { 0, 1, 2, -1, -1, -1, -1, -1, -1}, + { 0, 1, 2, -1, -1, -1, -1, -1, -1}, + { 0, 1, 2, -1, -1, -1, -1, -1, -1}, + { 2, 0, 1, 3, -1, -1, -1, -1, -1}, + { 0, 1, 2, 3, -1, -1, -1, -1, -1}, + { 2, 0, 1, 3, 4, -1, -1, -1, -1}, + { 0, 1, 3, 4, 2, -1, -1, -1, -1}, + { 2, 0, 1, 4, 5, 3, -1, -1, -1}, + { 2, 3, 0, 1, 5, 6, 4, -1, -1}, + { 2, 0, 1, 3, 4, 5, 6, -1, -1}, + { 0, 5, 3, 4, 1, 2, 6, -1, -1}, + { 3, 2, 4, 0, 1, 6, 7, 5, -1}, + { 4, 5, 0, 1, 7, 2, 8, 3, 6}, + { 3, 2, 4, 0, 1, 5, 8, 7, 6}, +}; + +#define DCA_DOLBY 101 /* FIXME */ + +#define DCA_CHANNEL_BITS 6 +#define DCA_CHANNEL_MASK 0x3F + +#define DCA_LFE 0x80 + +#define HEADER_SIZE 14 + +#define DCA_MAX_FRAME_SIZE 16384 +#define DCA_MAX_EXSS_HEADER_SIZE 4096 + +#define DCA_BUFFER_PADDING_SIZE 1024 + +/** Bit allocation */ +typedef struct { + int offset; ///< code values offset + int maxbits[8]; ///< max bits in VLC + int wrap; ///< wrap for get_vlc2() + VLC vlc[8]; ///< actual codes +} BitAlloc; + +static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select +static BitAlloc dca_tmode; ///< transition mode VLCs +static BitAlloc dca_scalefactor; ///< scalefactor VLCs +static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs + +static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba, + int idx) +{ + return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) + + ba->offset; +} + +typedef struct { + AVCodecContext *avctx; + AVFrame frame; + /* Frame header */ + int frame_type; ///< type of the current frame + int samples_deficit; ///< deficit sample count + int crc_present; ///< crc is present in the bitstream + int sample_blocks; ///< number of PCM sample blocks + int frame_size; ///< primary frame byte size + int amode; ///< audio channels arrangement + int sample_rate; ///< audio sampling rate + int bit_rate; ///< transmission bit rate + int bit_rate_index; ///< transmission bit rate index + + int downmix; ///< embedded downmix enabled + int dynrange; ///< embedded dynamic range flag + int timestamp; ///< embedded time stamp flag + int aux_data; ///< auxiliary data flag + int hdcd; ///< source material is mastered in HDCD + int ext_descr; ///< extension audio descriptor flag + int ext_coding; ///< extended coding flag + int aspf; ///< audio sync word insertion flag + int lfe; ///< low frequency effects flag + int predictor_history; ///< predictor history flag + int header_crc; ///< header crc check bytes + int multirate_inter; ///< multirate interpolator switch + int version; ///< encoder software revision + int copy_history; ///< copy history + int source_pcm_res; ///< source pcm resolution + int front_sum; ///< front sum/difference flag + int surround_sum; ///< surround sum/difference flag + int dialog_norm; ///< dialog normalisation parameter + + /* Primary audio coding header */ + int subframes; ///< number of subframes + int total_channels; ///< number of channels including extensions + int prim_channels; ///< number of primary audio channels + int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count + int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband + int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index + int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book + int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book + int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select + int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select + float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment + + /* Primary audio coding side information */ + int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes + int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count + int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not) + int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs + int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index + int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients) + int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient) + int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook + int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors + int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients + int dynrange_coef; ///< dynamic range coefficient + + int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands + + float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data + int lfe_scale_factor; + + /* Subband samples history (for ADPCM) */ + DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4]; + DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512]; + DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32]; + int hist_index[DCA_PRIM_CHANNELS_MAX]; + DECLARE_ALIGNED(32, float, raXin)[32]; + + int output; ///< type of output + float scale_bias; ///< output scale + + DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8]; + DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256]; + const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1]; + + uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE]; + int dca_buffer_size; ///< how much data is in the dca_buffer + + const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe + GetBitContext gb; + /* Current position in DCA frame */ + int current_subframe; + int current_subsubframe; + + int core_ext_mask; ///< present extensions in the core substream + + /* XCh extension information */ + int xch_present; ///< XCh extension present and valid + int xch_base_channel; ///< index of first (only) channel containing XCH data + + /* XXCH extension information */ + int xxch_chset; + int xxch_nbits_spk_mask; + uint32_t xxch_core_spkmask; + uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */ + int xxch_chset_nch[4]; + float xxch_dmix_sf[DCA_CHSETS_MAX]; + + uint32_t xxch_downmix; /* downmix enabled per channel set */ + uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */ + float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */ + + int8_t xxch_order_tab[32]; + int8_t lfe_index; + + /* ExSS header parser */ + int static_fields; ///< static fields present + int mix_metadata; ///< mixing metadata present + int num_mix_configs; ///< number of mix out configurations + int mix_config_num_ch[4]; ///< number of channels in each mix out configuration + + int profile; + + int debug_flag; ///< used for suppressing repeated error messages output + AVFloatDSPContext fdsp; + FFTContext imdct; + SynthFilterContext synth; + DCADSPContext dcadsp; + FmtConvertContext fmt_conv; +} DCAContext; + +static const uint16_t dca_vlc_offs[] = { + 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364, + 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508, + 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564, + 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240, + 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264, + 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622, +}; + +static av_cold void dca_init_vlcs(void) +{ + static int vlcs_initialized = 0; + int i, j, c = 14; + static VLC_TYPE dca_table[23622][2]; + + if (vlcs_initialized) + return; + + dca_bitalloc_index.offset = 1; + dca_bitalloc_index.wrap = 2; + for (i = 0; i < 5; i++) { + dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]]; + dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i]; + init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12, + bitalloc_12_bits[i], 1, 1, + bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); + } + dca_scalefactor.offset = -64; + dca_scalefactor.wrap = 2; + for (i = 0; i < 5; i++) { + dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]]; + dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5]; + init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129, + scales_bits[i], 1, 1, + scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); + } + dca_tmode.offset = 0; + dca_tmode.wrap = 1; + for (i = 0; i < 4; i++) { + dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]]; + dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10]; + init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4, + tmode_bits[i], 1, 1, + tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); + } + + for (i = 0; i < 10; i++) + for (j = 0; j < 7; j++) { + if (!bitalloc_codes[i][j]) + break; + dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i]; + dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4); + dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]]; + dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c]; + + init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j], + bitalloc_sizes[i], + bitalloc_bits[i][j], 1, 1, + bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC); + c++; + } + vlcs_initialized = 1; +} + +static inline void get_array(GetBitContext *gb, int *dst, int len, int bits) +{ + while (len--) + *dst++ = get_bits(gb, bits); +} + +static inline int dca_xxch2index(DCAContext *s, int xxch_ch) +{ + int i, base, mask; + + /* locate channel set containing the channel */ + for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1); + i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i]) + base += av_popcount(mask); + + return base + av_popcount(mask & (xxch_ch - 1)); +} + +static int dca_parse_audio_coding_header(DCAContext *s, int base_channel, + int xxch) +{ + int i, j; + static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 }; + static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 }; + static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 }; + int hdr_pos = 0, hdr_size = 0; + float sign, mag, scale_factor; + int this_chans, acc_mask; + int embedded_downmix; + int nchans, mask[8]; + int coeff, ichan; + + /* xxch has arbitrary sized audio coding headers */ + if (xxch) { + hdr_pos = get_bits_count(&s->gb); + hdr_size = get_bits(&s->gb, 7) + 1; + } + + nchans = get_bits(&s->gb, 3) + 1; + s->total_channels = nchans + base_channel; + s->prim_channels = s->total_channels; + + /* obtain speaker layout mask & downmix coefficients for XXCH */ + if (xxch) { + acc_mask = s->xxch_core_spkmask; + + this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6; + s->xxch_spk_masks[s->xxch_chset] = this_chans; + s->xxch_chset_nch[s->xxch_chset] = nchans; + + for (i = 0; i <= s->xxch_chset; i++) + acc_mask |= s->xxch_spk_masks[i]; + + /* check for downmixing information */ + if (get_bits1(&s->gb)) { + embedded_downmix = get_bits1(&s->gb); + scale_factor = + 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2]; + + s->xxch_dmix_sf[s->xxch_chset] = scale_factor; + + for (i = base_channel; i < s->prim_channels; i++) { + s->xxch_downmix |= (1 << i); + mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask); + } + + for (j = base_channel; j < s->prim_channels; j++) { + memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0])); + s->xxch_dmix_embedded |= (embedded_downmix << j); + for (i = 0; i < s->xxch_nbits_spk_mask; i++) { + if (mask[j] & (1 << i)) { + if ((1 << i) == DCA_XXCH_LFE1) { + av_log(s->avctx, AV_LOG_WARNING, + "DCA-XXCH: dmix to LFE1 not supported.\n"); + continue; + } + + coeff = get_bits(&s->gb, 7); + sign = (coeff & 64) ? 1.0 : -1.0; + mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2]; + ichan = dca_xxch2index(s, 1 << i); + s->xxch_dmix_coeff[j][ichan] = sign * mag; + } + } + } + } + } + + if (s->prim_channels > DCA_PRIM_CHANNELS_MAX) + s->prim_channels = DCA_PRIM_CHANNELS_MAX; + + + for (i = base_channel; i < s->prim_channels; i++) { + s->subband_activity[i] = get_bits(&s->gb, 5) + 2; + if (s->subband_activity[i] > DCA_SUBBANDS) + s->subband_activity[i] = DCA_SUBBANDS; + } + for (i = base_channel; i < s->prim_channels; i++) { + s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1; + if (s->vq_start_subband[i] > DCA_SUBBANDS) + s->vq_start_subband[i] = DCA_SUBBANDS; + } + get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3); + get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2); + get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3); + get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3); + + /* Get codebooks quantization indexes */ + if (!base_channel) + memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman)); + for (j = 1; j < 11; j++) + for (i = base_channel; i < s->prim_channels; i++) + s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]); + + /* Get scale factor adjustment */ + for (j = 0; j < 11; j++) + for (i = base_channel; i < s->prim_channels; i++) + s->scalefactor_adj[i][j] = 1; + + for (j = 1; j < 11; j++) + for (i = base_channel; i < s->prim_channels; i++) + if (s->quant_index_huffman[i][j] < thr[j]) + s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)]; + + if (!xxch) { + if (s->crc_present) { + /* Audio header CRC check */ + get_bits(&s->gb, 16); + } + } else { + /* Skip to the end of the header, also ignore CRC if present */ + i = get_bits_count(&s->gb); + if (hdr_pos + 8 * hdr_size > i) + skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i); + } + + s->current_subframe = 0; + s->current_subsubframe = 0; + +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes); + av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels); + for (i = base_channel; i < s->prim_channels; i++) { + av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n", + s->subband_activity[i]); + av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n", + s->vq_start_subband[i]); + av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n", + s->joint_intensity[i]); + av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n", + s->transient_huffman[i]); + av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n", + s->scalefactor_huffman[i]); + av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n", + s->bitalloc_huffman[i]); + av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:"); + for (j = 0; j < 11; j++) + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:"); + for (j = 0; j < 11; j++) + av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } +#endif + + return 0; +} + +static int dca_parse_frame_header(DCAContext *s) +{ + init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8); + + /* Sync code */ + skip_bits_long(&s->gb, 32); + + /* Frame header */ + s->frame_type = get_bits(&s->gb, 1); + s->samples_deficit = get_bits(&s->gb, 5) + 1; + s->crc_present = get_bits(&s->gb, 1); + s->sample_blocks = get_bits(&s->gb, 7) + 1; + s->frame_size = get_bits(&s->gb, 14) + 1; + if (s->frame_size < 95) + return AVERROR_INVALIDDATA; + s->amode = get_bits(&s->gb, 6); + s->sample_rate = avpriv_dca_sample_rates[get_bits(&s->gb, 4)]; + if (!s->sample_rate) + return AVERROR_INVALIDDATA; + s->bit_rate_index = get_bits(&s->gb, 5); + s->bit_rate = dca_bit_rates[s->bit_rate_index]; + if (!s->bit_rate) + return AVERROR_INVALIDDATA; + + s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */ + s->dynrange = get_bits(&s->gb, 1); + s->timestamp = get_bits(&s->gb, 1); + s->aux_data = get_bits(&s->gb, 1); + s->hdcd = get_bits(&s->gb, 1); + s->ext_descr = get_bits(&s->gb, 3); + s->ext_coding = get_bits(&s->gb, 1); + s->aspf = get_bits(&s->gb, 1); + s->lfe = get_bits(&s->gb, 2); + s->predictor_history = get_bits(&s->gb, 1); + + /* TODO: check CRC */ + if (s->crc_present) + s->header_crc = get_bits(&s->gb, 16); + + s->multirate_inter = get_bits(&s->gb, 1); + s->version = get_bits(&s->gb, 4); + s->copy_history = get_bits(&s->gb, 2); + s->source_pcm_res = get_bits(&s->gb, 3); + s->front_sum = get_bits(&s->gb, 1); + s->surround_sum = get_bits(&s->gb, 1); + s->dialog_norm = get_bits(&s->gb, 4); + + /* FIXME: channels mixing levels */ + s->output = s->amode; + if (s->lfe) + s->output |= DCA_LFE; + +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type); + av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit); + av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present); + av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n", + s->sample_blocks, s->sample_blocks * 32); + av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size); + av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n", + s->amode, dca_channels[s->amode]); + av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n", + s->sample_rate); + av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n", + s->bit_rate); + av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix); + av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange); + av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp); + av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data); + av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd); + av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr); + av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding); + av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf); + av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe); + av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n", + s->predictor_history); + av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc); + av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n", + s->multirate_inter); + av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version); + av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history); + av_log(s->avctx, AV_LOG_DEBUG, + "source pcm resolution: %i (%i bits/sample)\n", + s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]); + av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum); + av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum); + av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); +#endif + + /* Primary audio coding header */ + s->subframes = get_bits(&s->gb, 4) + 1; + + return dca_parse_audio_coding_header(s, 0, 0); +} + + +static inline int get_scale(GetBitContext *gb, int level, int value, int log2range) +{ + if (level < 5) { + /* huffman encoded */ + value += get_bitalloc(gb, &dca_scalefactor, level); + value = av_clip(value, 0, (1 << log2range) - 1); + } else if (level < 8) { + if (level + 1 > log2range) { + skip_bits(gb, level + 1 - log2range); + value = get_bits(gb, log2range); + } else { + value = get_bits(gb, level + 1); + } + } + return value; +} + +static int dca_subframe_header(DCAContext *s, int base_channel, int block_index) +{ + /* Primary audio coding side information */ + int j, k; + + if (get_bits_left(&s->gb) < 0) + return AVERROR_INVALIDDATA; + + if (!base_channel) { + s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1; + s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3); + } + + for (j = base_channel; j < s->prim_channels; j++) { + for (k = 0; k < s->subband_activity[j]; k++) + s->prediction_mode[j][k] = get_bits(&s->gb, 1); + } + + /* Get prediction codebook */ + for (j = base_channel; j < s->prim_channels; j++) { + for (k = 0; k < s->subband_activity[j]; k++) { + if (s->prediction_mode[j][k] > 0) { + /* (Prediction coefficient VQ address) */ + s->prediction_vq[j][k] = get_bits(&s->gb, 12); + } + } + } + + /* Bit allocation index */ + for (j = base_channel; j < s->prim_channels; j++) { + for (k = 0; k < s->vq_start_subband[j]; k++) { + if (s->bitalloc_huffman[j] == 6) + s->bitalloc[j][k] = get_bits(&s->gb, 5); + else if (s->bitalloc_huffman[j] == 5) + s->bitalloc[j][k] = get_bits(&s->gb, 4); + else if (s->bitalloc_huffman[j] == 7) { + av_log(s->avctx, AV_LOG_ERROR, + "Invalid bit allocation index\n"); + return AVERROR_INVALIDDATA; + } else { + s->bitalloc[j][k] = + get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]); + } + + if (s->bitalloc[j][k] > 26) { + // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n", + // j, k, s->bitalloc[j][k]); + return AVERROR_INVALIDDATA; + } + } + } + + /* Transition mode */ + for (j = base_channel; j < s->prim_channels; j++) { + for (k = 0; k < s->subband_activity[j]; k++) { + s->transition_mode[j][k] = 0; + if (s->subsubframes[s->current_subframe] > 1 && + k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) { + s->transition_mode[j][k] = + get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]); + } + } + } + + if (get_bits_left(&s->gb) < 0) + return AVERROR_INVALIDDATA; + + for (j = base_channel; j < s->prim_channels; j++) { + const uint32_t *scale_table; + int scale_sum, log_size; + + memset(s->scale_factor[j], 0, + s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2); + + if (s->scalefactor_huffman[j] == 6) { + scale_table = scale_factor_quant7; + log_size = 7; + } else { + scale_table = scale_factor_quant6; + log_size = 6; + } + + /* When huffman coded, only the difference is encoded */ + scale_sum = 0; + + for (k = 0; k < s->subband_activity[j]; k++) { + if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) { + scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size); + s->scale_factor[j][k][0] = scale_table[scale_sum]; + } + + if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) { + /* Get second scale factor */ + scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size); + s->scale_factor[j][k][1] = scale_table[scale_sum]; + } + } + } + + /* Joint subband scale factor codebook select */ + for (j = base_channel; j < s->prim_channels; j++) { + /* Transmitted only if joint subband coding enabled */ + if (s->joint_intensity[j] > 0) + s->joint_huff[j] = get_bits(&s->gb, 3); + } + + if (get_bits_left(&s->gb) < 0) + return AVERROR_INVALIDDATA; + + /* Scale factors for joint subband coding */ + for (j = base_channel; j < s->prim_channels; j++) { + int source_channel; + + /* Transmitted only if joint subband coding enabled */ + if (s->joint_intensity[j] > 0) { + int scale = 0; + source_channel = s->joint_intensity[j] - 1; + + /* When huffman coded, only the difference is encoded + * (is this valid as well for joint scales ???) */ + + for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) { + scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7); + s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */ + } + + if (!(s->debug_flag & 0x02)) { + av_log(s->avctx, AV_LOG_DEBUG, + "Joint stereo coding not supported\n"); + s->debug_flag |= 0x02; + } + } + } + + /* Stereo downmix coefficients */ + if (!base_channel && s->prim_channels > 2) { + if (s->downmix) { + for (j = base_channel; j < s->prim_channels; j++) { + s->downmix_coef[j][0] = get_bits(&s->gb, 7); + s->downmix_coef[j][1] = get_bits(&s->gb, 7); + } + } else { + int am = s->amode & DCA_CHANNEL_MASK; + if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) { + av_log(s->avctx, AV_LOG_ERROR, + "Invalid channel mode %d\n", am); + return AVERROR_INVALIDDATA; + } + for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) { + s->downmix_coef[j][0] = dca_default_coeffs[am][j][0]; + s->downmix_coef[j][1] = dca_default_coeffs[am][j][1]; + } + } + } + + /* Dynamic range coefficient */ + if (!base_channel && s->dynrange) + s->dynrange_coef = get_bits(&s->gb, 8); + + /* Side information CRC check word */ + if (s->crc_present) { + get_bits(&s->gb, 16); + } + + /* + * Primary audio data arrays + */ + + /* VQ encoded high frequency subbands */ + for (j = base_channel; j < s->prim_channels; j++) + for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++) + /* 1 vector -> 32 samples */ + s->high_freq_vq[j][k] = get_bits(&s->gb, 10); + + /* Low frequency effect data */ + if (!base_channel && s->lfe) { + int quant7; + /* LFE samples */ + int lfe_samples = 2 * s->lfe * (4 + block_index); + int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]); + float lfe_scale; + + for (j = lfe_samples; j < lfe_end_sample; j++) { + /* Signed 8 bits int */ + s->lfe_data[j] = get_sbits(&s->gb, 8); + } + + /* Scale factor index */ + quant7 = get_bits(&s->gb, 8); + if (quant7 > 127) { + av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n"); + return AVERROR_INVALIDDATA; + } + s->lfe_scale_factor = scale_factor_quant7[quant7]; + + /* Quantization step size * scale factor */ + lfe_scale = 0.035 * s->lfe_scale_factor; + + for (j = lfe_samples; j < lfe_end_sample; j++) + s->lfe_data[j] *= lfe_scale; + } + +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n", + s->subsubframes[s->current_subframe]); + av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n", + s->partial_samples[s->current_subframe]); + + for (j = base_channel; j < s->prim_channels; j++) { + av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:"); + for (k = 0; k < s->subband_activity[j]; k++) + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + for (j = base_channel; j < s->prim_channels; j++) { + for (k = 0; k < s->subband_activity[j]; k++) + av_log(s->avctx, AV_LOG_DEBUG, + "prediction coefs: %f, %f, %f, %f\n", + (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192); + } + for (j = base_channel; j < s->prim_channels; j++) { + av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: "); + for (k = 0; k < s->vq_start_subband[j]; k++) + av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + for (j = base_channel; j < s->prim_channels; j++) { + av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:"); + for (k = 0; k < s->subband_activity[j]; k++) + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + for (j = base_channel; j < s->prim_channels; j++) { + av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:"); + for (k = 0; k < s->subband_activity[j]; k++) { + if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]); + if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) + av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]); + } + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + for (j = base_channel; j < s->prim_channels; j++) { + if (s->joint_intensity[j] > 0) { + int source_channel = s->joint_intensity[j] - 1; + av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n"); + for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + } + if (!base_channel && s->prim_channels > 2 && s->downmix) { + av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n"); + for (j = 0; j < s->prim_channels; j++) { + av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j, + dca_downmix_coeffs[s->downmix_coef[j][0]]); + av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j, + dca_downmix_coeffs[s->downmix_coef[j][1]]); + } + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + for (j = base_channel; j < s->prim_channels; j++) + for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++) + av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]); + if (!base_channel && s->lfe) { + int lfe_samples = 2 * s->lfe * (4 + block_index); + int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]); + + av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n"); + for (j = lfe_samples; j < lfe_end_sample; j++) + av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]); + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } +#endif + + return 0; +} + +static void qmf_32_subbands(DCAContext *s, int chans, + float samples_in[32][8], float *samples_out, + float scale) +{ + const float *prCoeff; + int i; + + int sb_act = s->subband_activity[chans]; + int subindex; + + scale *= sqrt(1 / 8.0); + + /* Select filter */ + if (!s->multirate_inter) /* Non-perfect reconstruction */ + prCoeff = fir_32bands_nonperfect; + else /* Perfect reconstruction */ + prCoeff = fir_32bands_perfect; + + for (i = sb_act; i < 32; i++) + s->raXin[i] = 0.0; + + /* Reconstructed channel sample index */ + for (subindex = 0; subindex < 8; subindex++) { + /* Load in one sample from each subband and clear inactive subbands */ + for (i = 0; i < sb_act; i++) { + unsigned sign = (i - 1) & 2; + uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30; + AV_WN32A(&s->raXin[i], v); + } + + s->synth.synth_filter_float(&s->imdct, + s->subband_fir_hist[chans], + &s->hist_index[chans], + s->subband_fir_noidea[chans], prCoeff, + samples_out, s->raXin, scale); + samples_out += 32; + } +} + +static void lfe_interpolation_fir(DCAContext *s, int decimation_select, + int num_deci_sample, float *samples_in, + float *samples_out, float scale) +{ + /* samples_in: An array holding decimated samples. + * Samples in current subframe starts from samples_in[0], + * while samples_in[-1], samples_in[-2], ..., stores samples + * from last subframe as history. + * + * samples_out: An array holding interpolated samples + */ + + int decifactor; + const float *prCoeff; + int deciindex; + + /* Select decimation filter */ + if (decimation_select == 1) { + decifactor = 64; + prCoeff = lfe_fir_128; + } else { + decifactor = 32; + prCoeff = lfe_fir_64; + } + /* Interpolation */ + for (deciindex = 0; deciindex < num_deci_sample; deciindex++) { + s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale); + samples_in++; + samples_out += 2 * decifactor; + } +} + +/* downmixing routines */ +#define MIX_REAR1(samples, si1, rs, coef) \ + samples[i] += samples[si1] * coef[rs][0]; \ + samples[i+256] += samples[si1] * coef[rs][1]; + +#define MIX_REAR2(samples, si1, si2, rs, coef) \ + samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \ + samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1]; + +#define MIX_FRONT3(samples, coef) \ + t = samples[i + c]; \ + u = samples[i + l]; \ + v = samples[i + r]; \ + samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \ + samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1]; + +#define DOWNMIX_TO_STEREO(op1, op2) \ + for (i = 0; i < 256; i++) { \ + op1 \ + op2 \ + } + +static void dca_downmix(float *samples, int srcfmt, + int downmix_coef[DCA_PRIM_CHANNELS_MAX][2], + const int8_t *channel_mapping) +{ + int c, l, r, sl, sr, s; + int i; + float t, u, v; + float coef[DCA_PRIM_CHANNELS_MAX][2]; + + for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) { + coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]]; + coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]]; + } + + switch (srcfmt) { + case DCA_MONO: + case DCA_CHANNEL: + case DCA_STEREO_TOTAL: + case DCA_STEREO_SUMDIFF: + case DCA_4F2R: + av_log(NULL, 0, "Not implemented!\n"); + break; + case DCA_STEREO: + break; + case DCA_3F: + c = channel_mapping[0] * 256; + l = channel_mapping[1] * 256; + r = channel_mapping[2] * 256; + DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), ); + break; + case DCA_2F1R: + s = channel_mapping[2] * 256; + DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), ); + break; + case DCA_3F1R: + c = channel_mapping[0] * 256; + l = channel_mapping[1] * 256; + r = channel_mapping[2] * 256; + s = channel_mapping[3] * 256; + DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), + MIX_REAR1(samples, i + s, 3, coef)); + break; + case DCA_2F2R: + sl = channel_mapping[2] * 256; + sr = channel_mapping[3] * 256; + DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), ); + break; + case DCA_3F2R: + c = channel_mapping[0] * 256; + l = channel_mapping[1] * 256; + r = channel_mapping[2] * 256; + sl = channel_mapping[3] * 256; + sr = channel_mapping[4] * 256; + DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), + MIX_REAR2(samples, i + sl, i + sr, 3, coef)); + break; + } +} + + +#ifndef decode_blockcodes +/* Very compact version of the block code decoder that does not use table + * look-up but is slightly slower */ +static int decode_blockcode(int code, int levels, int *values) +{ + int i; + int offset = (levels - 1) >> 1; + + for (i = 0; i < 4; i++) { + int div = FASTDIV(code, levels); + values[i] = code - offset - div * levels; + code = div; + } + + return code; +} + +static int decode_blockcodes(int code1, int code2, int levels, int *values) +{ + return decode_blockcode(code1, levels, values) | + decode_blockcode(code2, levels, values + 4); +} +#endif + +static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 }; +static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 }; + +#ifndef int8x8_fmul_int32 +static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) +{ + float fscale = scale / 16.0; + int i; + for (i = 0; i < 8; i++) + dst[i] = src[i] * fscale; +} +#endif + +static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) +{ + int k, l; + int subsubframe = s->current_subsubframe; + + const float *quant_step_table; + + /* FIXME */ + float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; + LOCAL_ALIGNED_16(int, block, [8]); + + /* + * Audio data + */ + + /* Select quantization step size table */ + if (s->bit_rate_index == 0x1f) + quant_step_table = lossless_quant_d; + else + quant_step_table = lossy_quant_d; + + for (k = base_channel; k < s->prim_channels; k++) { + if (get_bits_left(&s->gb) < 0) + return AVERROR_INVALIDDATA; + + for (l = 0; l < s->vq_start_subband[k]; l++) { + int m; + + /* Select the mid-tread linear quantizer */ + int abits = s->bitalloc[k][l]; + + float quant_step_size = quant_step_table[abits]; + + /* + * Determine quantization index code book and its type + */ + + /* Select quantization index code book */ + int sel = s->quant_index_huffman[k][abits]; + + /* + * Extract bits from the bit stream + */ + if (!abits) { + memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0])); + } else { + /* Deal with transients */ + int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l]; + float rscale = quant_step_size * s->scale_factor[k][l][sfi] * + s->scalefactor_adj[k][sel]; + + if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) { + if (abits <= 7) { + /* Block code */ + int block_code1, block_code2, size, levels, err; + + size = abits_sizes[abits - 1]; + levels = abits_levels[abits - 1]; + + block_code1 = get_bits(&s->gb, size); + block_code2 = get_bits(&s->gb, size); + err = decode_blockcodes(block_code1, block_code2, + levels, block); + if (err) { + av_log(s->avctx, AV_LOG_ERROR, + "ERROR: block code look-up failed\n"); + return AVERROR_INVALIDDATA; + } + } else { + /* no coding */ + for (m = 0; m < 8; m++) + block[m] = get_sbits(&s->gb, abits - 3); + } + } else { + /* Huffman coded */ + for (m = 0; m < 8; m++) + block[m] = get_bitalloc(&s->gb, + &dca_smpl_bitalloc[abits], sel); + } + + s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l], + block, rscale, 8); + } + + /* + * Inverse ADPCM if in prediction mode + */ + if (s->prediction_mode[k][l]) { + int n; + for (m = 0; m < 8; m++) { + for (n = 1; n <= 4; n++) + if (m >= n) + subband_samples[k][l][m] += + (adpcm_vb[s->prediction_vq[k][l]][n - 1] * + subband_samples[k][l][m - n] / 8192); + else if (s->predictor_history) + subband_samples[k][l][m] += + (adpcm_vb[s->prediction_vq[k][l]][n - 1] * + s->subband_samples_hist[k][l][m - n + 4] / 8192); + } + } + } + + /* + * Decode VQ encoded high frequencies + */ + for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) { + /* 1 vector -> 32 samples but we only need the 8 samples + * for this subsubframe. */ + int hfvq = s->high_freq_vq[k][l]; + + if (!s->debug_flag & 0x01) { + av_log(s->avctx, AV_LOG_DEBUG, + "Stream with high frequencies VQ coding\n"); + s->debug_flag |= 0x01; + } + + int8x8_fmul_int32(subband_samples[k][l], + &high_freq_vq[hfvq][subsubframe * 8], + s->scale_factor[k][l][0]); + } + } + + /* Check for DSYNC after subsubframe */ + if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) { + if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */ +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n"); +#endif + } else { + av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n"); + } + } + + /* Backup predictor history for adpcm */ + for (k = base_channel; k < s->prim_channels; k++) + for (l = 0; l < s->vq_start_subband[k]; l++) + memcpy(s->subband_samples_hist[k][l], + &subband_samples[k][l][4], + 4 * sizeof(subband_samples[0][0][0])); + + return 0; +} + +static int dca_filter_channels(DCAContext *s, int block_index) +{ + float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; + int k; + + /* 32 subbands QMF */ + for (k = 0; k < s->prim_channels; k++) { +/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0, + 0, 8388608.0, 8388608.0 };*/ + qmf_32_subbands(s, k, subband_samples[k], + &s->samples[256 * s->channel_order_tab[k]], + M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */); + } + + /* Down mixing */ + if (s->avctx->request_channels == 2 && s->prim_channels > 2) { + dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab); + } + + /* Generate LFE samples for this subsubframe FIXME!!! */ + if (s->output & DCA_LFE) { + lfe_interpolation_fir(s, s->lfe, 2 * s->lfe, + s->lfe_data + 2 * s->lfe * (block_index + 4), + &s->samples[256 * s->lfe_index], + (1.0 / 256.0) * s->scale_bias); + /* Outputs 20bits pcm samples */ + } + + return 0; +} + + +static int dca_subframe_footer(DCAContext *s, int base_channel) +{ + int aux_data_count = 0, i; + + /* + * Unpack optional information + */ + + /* presumably optional information only appears in the core? */ + if (!base_channel) { + if (s->timestamp) + skip_bits_long(&s->gb, 32); + + if (s->aux_data) + aux_data_count = get_bits(&s->gb, 6); + + for (i = 0; i < aux_data_count; i++) + get_bits(&s->gb, 8); + + if (s->crc_present && (s->downmix || s->dynrange)) + get_bits(&s->gb, 16); + } + + return 0; +} + +/** + * Decode a dca frame block + * + * @param s pointer to the DCAContext + */ + +static int dca_decode_block(DCAContext *s, int base_channel, int block_index) +{ + int ret; + + /* Sanity check */ + if (s->current_subframe >= s->subframes) { + av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i", + s->current_subframe, s->subframes); + return AVERROR_INVALIDDATA; + } + + if (!s->current_subsubframe) { +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n"); +#endif + /* Read subframe header */ + if ((ret = dca_subframe_header(s, base_channel, block_index))) + return ret; + } + + /* Read subsubframe */ +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n"); +#endif + if ((ret = dca_subsubframe(s, base_channel, block_index))) + return ret; + + /* Update state */ + s->current_subsubframe++; + if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) { + s->current_subsubframe = 0; + s->current_subframe++; + } + if (s->current_subframe >= s->subframes) { +#ifdef TRACE + av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n"); +#endif + /* Read subframe footer */ + if ((ret = dca_subframe_footer(s, base_channel))) + return ret; + } + + return 0; +} + +/** + * Return the number of channels in an ExSS speaker mask (HD) + */ +static int dca_exss_mask2count(int mask) +{ + /* count bits that mean speaker pairs twice */ + return av_popcount(mask) + + av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT | + DCA_EXSS_FRONT_LEFT_RIGHT | + DCA_EXSS_FRONT_HIGH_LEFT_RIGHT | + DCA_EXSS_WIDE_LEFT_RIGHT | + DCA_EXSS_SIDE_LEFT_RIGHT | + DCA_EXSS_SIDE_HIGH_LEFT_RIGHT | + DCA_EXSS_SIDE_REAR_LEFT_RIGHT | + DCA_EXSS_REAR_LEFT_RIGHT | + DCA_EXSS_REAR_HIGH_LEFT_RIGHT)); +} + +/** + * Skip mixing coefficients of a single mix out configuration (HD) + */ +static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch) +{ + int i; + + for (i = 0; i < channels; i++) { + int mix_map_mask = get_bits(gb, out_ch); + int num_coeffs = av_popcount(mix_map_mask); + skip_bits_long(gb, num_coeffs * 6); + } +} + +/** + * Parse extension substream asset header (HD) + */ +static int dca_exss_parse_asset_header(DCAContext *s) +{ + int header_pos = get_bits_count(&s->gb); + int header_size; + int channels = 0; + int embedded_stereo = 0; + int embedded_6ch = 0; + int drc_code_present; + int av_uninit(extensions_mask); + int i, j; + + if (get_bits_left(&s->gb) < 16) + return -1; + + /* We will parse just enough to get to the extensions bitmask with which + * we can set the profile value. */ + + header_size = get_bits(&s->gb, 9) + 1; + skip_bits(&s->gb, 3); // asset index + + if (s->static_fields) { + if (get_bits1(&s->gb)) + skip_bits(&s->gb, 4); // asset type descriptor + if (get_bits1(&s->gb)) + skip_bits_long(&s->gb, 24); // language descriptor + + if (get_bits1(&s->gb)) { + /* How can one fit 1024 bytes of text here if the maximum value + * for the asset header size field above was 512 bytes? */ + int text_length = get_bits(&s->gb, 10) + 1; + if (get_bits_left(&s->gb) < text_length * 8) + return -1; + skip_bits_long(&s->gb, text_length * 8); // info text + } + + skip_bits(&s->gb, 5); // bit resolution - 1 + skip_bits(&s->gb, 4); // max sample rate code + channels = get_bits(&s->gb, 8) + 1; + + if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers + int spkr_remap_sets; + int spkr_mask_size = 16; + int num_spkrs[7]; + + if (channels > 2) + embedded_stereo = get_bits1(&s->gb); + if (channels > 6) + embedded_6ch = get_bits1(&s->gb); + + if (get_bits1(&s->gb)) { + spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2; + skip_bits(&s->gb, spkr_mask_size); // spkr activity mask + } + + spkr_remap_sets = get_bits(&s->gb, 3); + + for (i = 0; i < spkr_remap_sets; i++) { + /* std layout mask for each remap set */ + num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size)); + } + + for (i = 0; i < spkr_remap_sets; i++) { + int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1; + if (get_bits_left(&s->gb) < 0) + return -1; + + for (j = 0; j < num_spkrs[i]; j++) { + int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps); + int num_dec_ch = av_popcount(remap_dec_ch_mask); + skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes + } + } + + } else { + skip_bits(&s->gb, 3); // representation type + } + } + + drc_code_present = get_bits1(&s->gb); + if (drc_code_present) + get_bits(&s->gb, 8); // drc code + + if (get_bits1(&s->gb)) + skip_bits(&s->gb, 5); // dialog normalization code + + if (drc_code_present && embedded_stereo) + get_bits(&s->gb, 8); // drc stereo code + + if (s->mix_metadata && get_bits1(&s->gb)) { + skip_bits(&s->gb, 1); // external mix + skip_bits(&s->gb, 6); // post mix gain code + + if (get_bits(&s->gb, 2) != 3) // mixer drc code + skip_bits(&s->gb, 3); // drc limit + else + skip_bits(&s->gb, 8); // custom drc code + + if (get_bits1(&s->gb)) // channel specific scaling + for (i = 0; i < s->num_mix_configs; i++) + skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes + else + skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes + + for (i = 0; i < s->num_mix_configs; i++) { + if (get_bits_left(&s->gb) < 0) + return -1; + dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]); + if (embedded_6ch) + dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]); + if (embedded_stereo) + dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]); + } + } + + switch (get_bits(&s->gb, 2)) { + case 0: extensions_mask = get_bits(&s->gb, 12); break; + case 1: extensions_mask = DCA_EXT_EXSS_XLL; break; + case 2: extensions_mask = DCA_EXT_EXSS_LBR; break; + case 3: extensions_mask = 0; /* aux coding */ break; + } + + /* not parsed further, we were only interested in the extensions mask */ + + if (get_bits_left(&s->gb) < 0) + return -1; + + if (get_bits_count(&s->gb) - header_pos > header_size * 8) { + av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n"); + return -1; + } + skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb)); + + if (extensions_mask & DCA_EXT_EXSS_XLL) + s->profile = FF_PROFILE_DTS_HD_MA; + else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 | + DCA_EXT_EXSS_XXCH)) + s->profile = FF_PROFILE_DTS_HD_HRA; + + if (!(extensions_mask & DCA_EXT_CORE)) + av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n"); + if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask) + av_log(s->avctx, AV_LOG_WARNING, + "DTS extensions detection mismatch (%d, %d)\n", + extensions_mask & DCA_CORE_EXTS, s->core_ext_mask); + + return 0; +} + +static int dca_xbr_parse_frame(DCAContext *s) +{ + int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2]; + int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX]; + int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS]; + int anctemp[DCA_CHSET_CHANS_MAX]; + int chset_fsize[DCA_CHSETS_MAX]; + int n_xbr_ch[DCA_CHSETS_MAX]; + int hdr_size, num_chsets, xbr_tmode, hdr_pos; + int i, j, k, l, chset, chan_base; + + av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n"); + + /* get bit position of sync header */ + hdr_pos = get_bits_count(&s->gb) - 32; + + hdr_size = get_bits(&s->gb, 6) + 1; + num_chsets = get_bits(&s->gb, 2) + 1; + + for(i = 0; i < num_chsets; i++) + chset_fsize[i] = get_bits(&s->gb, 14) + 1; + + xbr_tmode = get_bits1(&s->gb); + + for(i = 0; i < num_chsets; i++) { + n_xbr_ch[i] = get_bits(&s->gb, 3) + 1; + k = get_bits(&s->gb, 2) + 5; + for(j = 0; j < n_xbr_ch[i]; j++) + active_bands[i][j] = get_bits(&s->gb, k) + 1; + } + + /* skip to the end of the header */ + i = get_bits_count(&s->gb); + if(hdr_pos + hdr_size * 8 > i) + skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i); + + /* loop over the channel data sets */ + /* only decode as many channels as we've decoded base data for */ + for(chset = 0, chan_base = 0; + chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels; + chan_base += n_xbr_ch[chset++]) { + int start_posn = get_bits_count(&s->gb); + int subsubframe = 0; + int subframe = 0; + + /* loop over subframes */ + for (k = 0; k < (s->sample_blocks / 8); k++) { + /* parse header if we're on first subsubframe of a block */ + if(subsubframe == 0) { + /* Parse subframe header */ + for(i = 0; i < n_xbr_ch[chset]; i++) { + anctemp[i] = get_bits(&s->gb, 2) + 2; + } + + for(i = 0; i < n_xbr_ch[chset]; i++) { + get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]); + } + + for(i = 0; i < n_xbr_ch[chset]; i++) { + anctemp[i] = get_bits(&s->gb, 3); + if(anctemp[i] < 1) { + av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n"); + return AVERROR_INVALIDDATA; + } + } + + /* generate scale factors */ + for(i = 0; i < n_xbr_ch[chset]; i++) { + const uint32_t *scale_table; + int nbits; + + if (s->scalefactor_huffman[chan_base+i] == 6) { + scale_table = scale_factor_quant7; + } else { + scale_table = scale_factor_quant6; + } + + nbits = anctemp[i]; + + for(j = 0; j < active_bands[chset][i]; j++) { + if(abits_high[i][j] > 0) { + scale_table_high[i][j][0] = + scale_table[get_bits(&s->gb, nbits)]; + + if(xbr_tmode && s->transition_mode[i][j]) { + scale_table_high[i][j][1] = + scale_table[get_bits(&s->gb, nbits)]; + } + } + } + } + } + + /* decode audio array for this block */ + for(i = 0; i < n_xbr_ch[chset]; i++) { + for(j = 0; j < active_bands[chset][i]; j++) { + const int xbr_abits = abits_high[i][j]; + const float quant_step_size = lossless_quant_d[xbr_abits]; + const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j]; + const float rscale = quant_step_size * scale_table_high[i][j][sfi]; + float *subband_samples = s->subband_samples[k][chan_base+i][j]; + int block[8]; + + if(xbr_abits <= 0) + continue; + + if(xbr_abits > 7) { + get_array(&s->gb, block, 8, xbr_abits - 3); + } else { + int block_code1, block_code2, size, levels, err; + + size = abits_sizes[xbr_abits - 1]; + levels = abits_levels[xbr_abits - 1]; + + block_code1 = get_bits(&s->gb, size); + block_code2 = get_bits(&s->gb, size); + err = decode_blockcodes(block_code1, block_code2, + levels, block); + if (err) { + av_log(s->avctx, AV_LOG_ERROR, + "ERROR: DTS-XBR: block code look-up failed\n"); + return AVERROR_INVALIDDATA; + } + } + + /* scale & sum into subband */ + for(l = 0; l < 8; l++) + subband_samples[l] += (float)block[l] * rscale; + } + } + + /* check DSYNC marker */ + if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) { + if(get_bits(&s->gb, 16) != 0xffff) { + av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n"); + return AVERROR_INVALIDDATA; + } + } + + /* advance sub-sub-frame index */ + if(++subsubframe >= s->subsubframes[subframe]) { + subsubframe = 0; + subframe++; + } + } + + /* skip to next channel set */ + i = get_bits_count(&s->gb); + if(start_posn + chset_fsize[chset] * 8 != i) { + j = start_posn + chset_fsize[chset] * 8 - i; + if(j < 0 || j >= 8) + av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set," + " skipping further than expected (%d bits)\n", j); + skip_bits_long(&s->gb, j); + } + } + + return 0; +} + +/* parse initial header for XXCH and dump details */ +static int dca_xxch_decode_frame(DCAContext *s) +{ + int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos; + int i, chset, base_channel, chstart, fsize[8]; + + /* assume header word has already been parsed */ + hdr_pos = get_bits_count(&s->gb) - 32; + hdr_size = get_bits(&s->gb, 6) + 1; + chhdr_crc = get_bits1(&s->gb); + spkmsk_bits = get_bits(&s->gb, 5) + 1; + num_chsets = get_bits(&s->gb, 2) + 1; + + for (i = 0; i < num_chsets; i++) + fsize[i] = get_bits(&s->gb, 14) + 1; + + core_spk = get_bits(&s->gb, spkmsk_bits); + s->xxch_core_spkmask = core_spk; + s->xxch_nbits_spk_mask = spkmsk_bits; + s->xxch_downmix = 0; + s->xxch_dmix_embedded = 0; + + /* skip to the end of the header */ + i = get_bits_count(&s->gb); + if (hdr_pos + hdr_size * 8 > i) + skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i); + + for (chset = 0; chset < num_chsets; chset++) { + chstart = get_bits_count(&s->gb); + base_channel = s->prim_channels; + s->xxch_chset = chset; + + /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs. + 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */ + dca_parse_audio_coding_header(s, base_channel, 1); + + /* decode channel data */ + for (i = 0; i < (s->sample_blocks / 8); i++) { + if (dca_decode_block(s, base_channel, i)) { + av_log(s->avctx, AV_LOG_ERROR, + "Error decoding DTS-XXCH extension\n"); + continue; + } + } + + /* skip to end of this section */ + i = get_bits_count(&s->gb); + if (chstart + fsize[chset] * 8 > i) + skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i); + } + s->xxch_chset = num_chsets; + + return 0; +} + +/** + * Parse extension substream header (HD) + */ +static void dca_exss_parse_header(DCAContext *s) +{ + int asset_size[8]; + int ss_index; + int blownup; + int num_audiop = 1; + int num_assets = 1; + int active_ss_mask[8]; + int i, j; + int start_posn; + int hdrsize; + uint32_t mkr; + + if (get_bits_left(&s->gb) < 52) + return; + + start_posn = get_bits_count(&s->gb) - 32; + + skip_bits(&s->gb, 8); // user data + ss_index = get_bits(&s->gb, 2); + + blownup = get_bits1(&s->gb); + hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size + skip_bits(&s->gb, 16 + 4 * blownup); // hd_size + + s->static_fields = get_bits1(&s->gb); + if (s->static_fields) { + skip_bits(&s->gb, 2); // reference clock code + skip_bits(&s->gb, 3); // frame duration code + + if (get_bits1(&s->gb)) + skip_bits_long(&s->gb, 36); // timestamp + + /* a single stream can contain multiple audio assets that can be + * combined to form multiple audio presentations */ + + num_audiop = get_bits(&s->gb, 3) + 1; + if (num_audiop > 1) { + av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations."); + /* ignore such streams for now */ + return; + } + + num_assets = get_bits(&s->gb, 3) + 1; + if (num_assets > 1) { + av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets."); + /* ignore such streams for now */ + return; + } + + for (i = 0; i < num_audiop; i++) + active_ss_mask[i] = get_bits(&s->gb, ss_index + 1); + + for (i = 0; i < num_audiop; i++) + for (j = 0; j <= ss_index; j++) + if (active_ss_mask[i] & (1 << j)) + skip_bits(&s->gb, 8); // active asset mask + + s->mix_metadata = get_bits1(&s->gb); + if (s->mix_metadata) { + int mix_out_mask_size; + + skip_bits(&s->gb, 2); // adjustment level + mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2; + s->num_mix_configs = get_bits(&s->gb, 2) + 1; + + for (i = 0; i < s->num_mix_configs; i++) { + int mix_out_mask = get_bits(&s->gb, mix_out_mask_size); + s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask); + } + } + } + + for (i = 0; i < num_assets; i++) + asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup); + + for (i = 0; i < num_assets; i++) { + if (dca_exss_parse_asset_header(s)) + return; + } + + /* not parsed further, we were only interested in the extensions mask + * from the asset header */ + + if (num_assets > 0) { + j = get_bits_count(&s->gb); + if (start_posn + hdrsize * 8 > j) + skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j); + + for (i = 0; i < num_assets; i++) { + start_posn = get_bits_count(&s->gb); + mkr = get_bits_long(&s->gb, 32); + + /* parse extensions that we know about */ + if (mkr == 0x655e315e) { + dca_xbr_parse_frame(s); + } else if (mkr == 0x47004a03) { + dca_xxch_decode_frame(s); + s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */ + } else { + av_log(s->avctx, AV_LOG_DEBUG, + "DTS-ExSS: unknown marker = 0x%08x\n", mkr); + } + + /* skip to end of block */ + j = get_bits_count(&s->gb); + if (start_posn + asset_size[i] * 8 > j) + skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j); + } + } +} + +/** + * Main frame decoding function + * FIXME add arguments + */ +static int dca_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame_ptr, AVPacket *avpkt) +{ + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + int channel_mask; + int channel_layout; + int lfe_samples; + int num_core_channels = 0; + int i, ret; + float *samples_flt; + float *src_chan; + float *dst_chan; + int16_t *samples_s16; + DCAContext *s = avctx->priv_data; + int core_ss_end; + int channels; + float scale; + int achan; + int chset; + int mask; + int lavc; + int posn; + int j, k; + int ch; + int endch; + + s->xch_present = 0; + + s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer, + DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE); + if (s->dca_buffer_size == AVERROR_INVALIDDATA) { + av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n"); + return AVERROR_INVALIDDATA; + } + + init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8); + if ((ret = dca_parse_frame_header(s)) < 0) { + //seems like the frame is corrupt, try with the next one + return ret; + } + //set AVCodec values with parsed data + avctx->sample_rate = s->sample_rate; + avctx->bit_rate = s->bit_rate; + + s->profile = FF_PROFILE_DTS; + + for (i = 0; i < (s->sample_blocks / 8); i++) { + if ((ret = dca_decode_block(s, 0, i))) { + av_log(avctx, AV_LOG_ERROR, "error decoding block\n"); + return ret; + } + } + + /* record number of core channels incase less than max channels are requested */ + num_core_channels = s->prim_channels; + + if (s->ext_coding) + s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr]; + else + s->core_ext_mask = 0; + + core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8; + + /* only scan for extensions if ext_descr was unknown or indicated a + * supported XCh extension */ + if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) { + + /* if ext_descr was unknown, clear s->core_ext_mask so that the + * extensions scan can fill it up */ + s->core_ext_mask = FFMAX(s->core_ext_mask, 0); + + /* extensions start at 32-bit boundaries into bitstream */ + skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); + + while (core_ss_end - get_bits_count(&s->gb) >= 32) { + uint32_t bits = get_bits_long(&s->gb, 32); + + switch (bits) { + case 0x5a5a5a5a: { + int ext_amode, xch_fsize; + + s->xch_base_channel = s->prim_channels; + + /* validate sync word using XCHFSIZE field */ + xch_fsize = show_bits(&s->gb, 10); + if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) && + (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1)) + continue; + + /* skip length-to-end-of-frame field for the moment */ + skip_bits(&s->gb, 10); + + s->core_ext_mask |= DCA_EXT_XCH; + + /* extension amode(number of channels in extension) should be 1 */ + /* AFAIK XCh is not used for more channels */ + if ((ext_amode = get_bits(&s->gb, 4)) != 1) { + av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not" + " supported!\n", ext_amode); + continue; + } + + /* much like core primary audio coding header */ + dca_parse_audio_coding_header(s, s->xch_base_channel, 0); + + for (i = 0; i < (s->sample_blocks / 8); i++) + if ((ret = dca_decode_block(s, s->xch_base_channel, i))) { + av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n"); + continue; + } + + s->xch_present = 1; + break; + } + case 0x47004a03: + /* XXCh: extended channels */ + /* usually found either in core or HD part in DTS-HD HRA streams, + * but not in DTS-ES which contains XCh extensions instead */ + s->core_ext_mask |= DCA_EXT_XXCH; + dca_xxch_decode_frame(s); + break; + + case 0x1d95f262: { + int fsize96 = show_bits(&s->gb, 12) + 1; + if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96) + continue; + + av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n", + get_bits_count(&s->gb)); + skip_bits(&s->gb, 12); + av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96); + av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4)); + + s->core_ext_mask |= DCA_EXT_X96; + break; + } + } + + skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); + } + } else { + /* no supported extensions, skip the rest of the core substream */ + skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb)); + } + + if (s->core_ext_mask & DCA_EXT_X96) + s->profile = FF_PROFILE_DTS_96_24; + else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) + s->profile = FF_PROFILE_DTS_ES; + + /* check for ExSS (HD part) */ + if (s->dca_buffer_size - s->frame_size > 32 && + get_bits_long(&s->gb, 32) == DCA_HD_MARKER) + dca_exss_parse_header(s); + + avctx->profile = s->profile; + + channels = s->prim_channels + !!s->lfe; + + /* If we have XXCH then the channel layout is managed differently */ + /* note that XLL will also have another way to do things */ + if (!(s->core_ext_mask & DCA_EXT_XXCH) + || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0 + && avctx->request_channels + < num_core_channels + !!s->lfe + s->xxch_chset_nch[0])) + { /* xxx should also do MA extensions */ + if (s->amode < 16) { + avctx->channel_layout = dca_core_channel_layout[s->amode]; + + if (s->xch_present && (!avctx->request_channels || + avctx->request_channels + > num_core_channels + !!s->lfe)) { + avctx->channel_layout |= AV_CH_BACK_CENTER; + if (s->lfe) { + avctx->channel_layout |= AV_CH_LOW_FREQUENCY; + s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode]; + } else { + s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode]; + } + } else { + channels = num_core_channels + !!s->lfe; + s->xch_present = 0; /* disable further xch processing */ + if (s->lfe) { + avctx->channel_layout |= AV_CH_LOW_FREQUENCY; + s->channel_order_tab = dca_channel_reorder_lfe[s->amode]; + } else + s->channel_order_tab = dca_channel_reorder_nolfe[s->amode]; + } + + if (channels > !!s->lfe && + s->channel_order_tab[channels - 1 - !!s->lfe] < 0) + return AVERROR_INVALIDDATA; + + if (avctx->request_channels == 2 && s->prim_channels > 2) { + channels = 2; + s->output = DCA_STEREO; + avctx->channel_layout = AV_CH_LAYOUT_STEREO; + } + else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) { + static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }; + s->channel_order_tab = dca_channel_order_native; + } + s->lfe_index = dca_lfe_index[s->amode]; + } else { + av_log(avctx, AV_LOG_ERROR, + "Non standard configuration %d !\n", s->amode); + return AVERROR_INVALIDDATA; + } + + s->xxch_downmix = 0; + } else { + /* we only get here if an XXCH channel set can be added to the mix */ + channel_mask = s->xxch_core_spkmask; + + if (avctx->request_channels > 0 + && avctx->request_channels < s->prim_channels) { + channels = num_core_channels + !!s->lfe; + for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i] + <= avctx->request_channels; i++) { + channels += s->xxch_chset_nch[i]; + channel_mask |= s->xxch_spk_masks[i]; + } + } else { + channels = s->prim_channels + !!s->lfe; + for (i = 0; i < s->xxch_chset; i++) { + channel_mask |= s->xxch_spk_masks[i]; + } + } + + /* Given the DTS spec'ed channel mask, generate an avcodec version */ + channel_layout = 0; + for (i = 0; i < s->xxch_nbits_spk_mask; ++i) { + if (channel_mask & (1 << i)) { + channel_layout |= map_xxch_to_native[i]; + } + } + + /* make sure that we have managed to get equivelant dts/avcodec channel + * masks in some sense -- unfortunately some channels could overlap */ + if (av_popcount(channel_mask) != av_popcount(channel_layout)) { + av_log(avctx, AV_LOG_DEBUG, + "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n"); + return AVERROR_INVALIDDATA; + } + + avctx->channel_layout = channel_layout; + + if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) { + /* Estimate DTS --> avcodec ordering table */ + for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) { + mask = chset >= 0 ? s->xxch_spk_masks[chset] + : s->xxch_core_spkmask; + for (i = 0; i < s->xxch_nbits_spk_mask; i++) { + if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) { + lavc = map_xxch_to_native[i]; + posn = av_popcount(channel_layout & (lavc - 1)); + s->xxch_order_tab[j++] = posn; + } + } + } + + s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1)); + } else { /* native ordering */ + for (i = 0; i < channels; i++) + s->xxch_order_tab[i] = i; + + s->lfe_index = channels - 1; + } + + s->channel_order_tab = s->xxch_order_tab; + } + + if (avctx->channels != channels) { + if (avctx->channels) + av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels); + avctx->channels = channels; + } + + /* get output buffer */ + s->frame.nb_samples = 256 * (s->sample_blocks / 8); + if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } + samples_flt = (float *) s->frame.data[0]; + samples_s16 = (int16_t *) s->frame.data[0]; + + /* filter to get final output */ + for (i = 0; i < (s->sample_blocks / 8); i++) { + dca_filter_channels(s, i); + + /* If this was marked as a DTS-ES stream we need to subtract back- */ + /* channel from SL & SR to remove matrixed back-channel signal */ + if ((s->source_pcm_res & 1) && s->xch_present) { + float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256; + float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256; + float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256; + s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256); + s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256); + } + + /* If stream contains XXCH, we might need to undo an embedded downmix */ + if (s->xxch_dmix_embedded) { + /* Loop over channel sets in turn */ + ch = num_core_channels; + for (chset = 0; chset < s->xxch_chset; chset++) { + endch = ch + s->xxch_chset_nch[chset]; + mask = s->xxch_dmix_embedded; + + /* undo downmix */ + for (j = ch; j < endch; j++) { + if (mask & (1 << j)) { /* this channel has been mixed-out */ + src_chan = s->samples + s->channel_order_tab[j] * 256; + for (k = 0; k < endch; k++) { + achan = s->channel_order_tab[k]; + scale = s->xxch_dmix_coeff[j][k]; + if (scale != 0.0) { + dst_chan = s->samples + achan * 256; + s->fdsp.vector_fmac_scalar(dst_chan, src_chan, + -scale, 256); + } + } + } + } + + /* if a downmix has been embedded then undo the pre-scaling */ + if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) { + scale = s->xxch_dmix_sf[chset]; + + for (j = 0; j < ch; j++) { + src_chan = s->samples + s->channel_order_tab[j] * 256; + for (k = 0; k < 256; k++) + src_chan[k] *= scale; + } + + /* LFE channel is always part of core, scale if it exists */ + if (s->lfe) { + src_chan = s->samples + s->lfe_index * 256; + for (k = 0; k < 256; k++) + src_chan[k] *= scale; + } + } + + ch = endch; + } + + } + + if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) { + s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256, + channels); + samples_flt += 256 * channels; + } else { + s->fmt_conv.float_to_int16_interleave(samples_s16, + s->samples_chanptr, 256, + channels); + samples_s16 += 256 * channels; + } + } + + /* update lfe history */ + lfe_samples = 2 * s->lfe * (s->sample_blocks / 8); + for (i = 0; i < 2 * s->lfe * 4; i++) + s->lfe_data[i] = s->lfe_data[i + lfe_samples]; + + *got_frame_ptr = 1; + *(AVFrame *) data = s->frame; + + return buf_size; +} + + + +/** + * DCA initialization + * + * @param avctx pointer to the AVCodecContext + */ + +static av_cold int dca_decode_init(AVCodecContext *avctx) +{ + DCAContext *s = avctx->priv_data; + int i; + + s->avctx = avctx; + dca_init_vlcs(); + + avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT); + ff_mdct_init(&s->imdct, 6, 1, 1.0); + ff_synth_filter_init(&s->synth); + ff_dcadsp_init(&s->dcadsp); + ff_fmt_convert_init(&s->fmt_conv, avctx); + + for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++) + s->samples_chanptr[i] = s->samples + i * 256; + + if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) { + avctx->sample_fmt = AV_SAMPLE_FMT_FLT; + s->scale_bias = 1.0 / 32768.0; + } else { + avctx->sample_fmt = AV_SAMPLE_FMT_S16; + s->scale_bias = 1.0; + } + + /* allow downmixing to stereo */ + if (avctx->channels > 0 && avctx->request_channels < avctx->channels && + avctx->request_channels == 2) { + avctx->channels = avctx->request_channels; + } + + avcodec_get_frame_defaults(&s->frame); + avctx->coded_frame = &s->frame; + + return 0; +} + +static av_cold int dca_decode_end(AVCodecContext *avctx) +{ + DCAContext *s = avctx->priv_data; + ff_mdct_end(&s->imdct); + return 0; +} + +static const AVProfile profiles[] = { + { FF_PROFILE_DTS, "DTS" }, + { FF_PROFILE_DTS_ES, "DTS-ES" }, + { FF_PROFILE_DTS_96_24, "DTS 96/24" }, + { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" }, + { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" }, + { FF_PROFILE_UNKNOWN }, +}; + +AVCodec ff_dca_decoder = { + .name = "dca", + .type = AVMEDIA_TYPE_AUDIO, + .id = CODEC_ID_DTS, + .priv_data_size = sizeof(DCAContext), + .init = dca_decode_init, + .decode = dca_decode_frame, + .close = dca_decode_end, + .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"), + .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1, + .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT, + AV_SAMPLE_FMT_S16, + AV_SAMPLE_FMT_NONE }, + .profiles = NULL_IF_CONFIG_SMALL(profiles), +}; diff --git a/libavcodec/dcaenc.c b/libavcodec/dcaenc.c index 6879321eb3..fd00b4f0b1 100644 --- a/libavcodec/dcaenc.c +++ b/libavcodec/dcaenc.c @@ -30,6 +30,7 @@ #include "put_bits.h" #include "dcaenc.h" #include "dcadata.h" +#include "dca.h" #undef NDEBUG @@ -569,13 +570,13 @@ static int encode_init(AVCodecContext *avctx) } for (i = 0; i < 16; i++) { - if (dca_sample_rates[i] && (dca_sample_rates[i] == avctx->sample_rate)) + if (avpriv_dca_sample_rates[i] && (avpriv_dca_sample_rates[i] == avctx->sample_rate)) break; } if (i == 16) { av_log(avctx, AV_LOG_ERROR, "Sample rate %iHz not supported, only ", avctx->sample_rate); for (i = 0; i < 16; i++) - av_log(avctx, AV_LOG_ERROR, "%d, ", dca_sample_rates[i]); + av_log(avctx, AV_LOG_ERROR, "%d, ", avpriv_dca_sample_rates[i]); av_log(avctx, AV_LOG_ERROR, "supported.\n"); return -1; } diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c index d4c32aa6b8..b32d34f1ad 100644 --- a/libavcodec/dct-test.c +++ b/libavcodec/dct-test.c @@ -85,7 +85,7 @@ static const struct algo fdct_tab[] = { { "IJG-AAN-INT", ff_fdct_ifast, SCALE_PERM }, { "IJG-LLM-INT", ff_jpeg_fdct_islow_8, NO_PERM }, -#if HAVE_MMX +#if HAVE_MMX && HAVE_INLINE_ASM { "MMX", ff_fdct_mmx, NO_PERM, AV_CPU_FLAG_MMX }, { "MMX2", ff_fdct_mmx2, NO_PERM, AV_CPU_FLAG_MMX2 }, { "SSE2", ff_fdct_sse2, NO_PERM, AV_CPU_FLAG_SSE2 }, diff --git a/libavcodec/x86/dsputilenc_mmx.c b/libavcodec/x86/dsputilenc_mmx.c index de365ee400..cdc384ca9d 100644 --- a/libavcodec/x86/dsputilenc_mmx.c +++ b/libavcodec/x86/dsputilenc_mmx.c @@ -30,6 +30,8 @@ #include "dsputil_mmx.h" +#if HAVE_INLINE_ASM + static void get_pixels_mmx(DCTELEM *block, const uint8_t *pixels, int line_size) { __asm__ volatile( @@ -323,8 +325,6 @@ static int sse16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int return tmp; } -int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); - static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) { int tmp; __asm__ volatile ( @@ -926,17 +926,6 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, const uint8_t *src1, c "paddusw "#t", "#a" \n\t"\ "movd "#a", "#dst" \n\t"\ -#define hadamard_func(cpu) \ -int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \ - int stride, int h); \ -int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \ - int stride, int h); - -hadamard_func(mmx) -hadamard_func(mmx2) -hadamard_func(sse2) -hadamard_func(ssse3) - #define DCT_SAD4(m,mm,o)\ "mov"#m" "#o"+ 0(%1), "#mm"2 \n\t"\ "mov"#m" "#o"+16(%1), "#mm"3 \n\t"\ @@ -1095,10 +1084,26 @@ static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int si #undef PHADDD #endif //HAVE_SSSE3 +#endif /* HAVE_INLINE_ASM */ + +int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); + +#define hadamard_func(cpu) \ +int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \ + int stride, int h); \ +int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \ + int stride, int h); + +hadamard_func(mmx) +hadamard_func(mmx2) +hadamard_func(sse2) +hadamard_func(ssse3) void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) { int mm_flags = av_get_cpu_flags(); + +#if HAVE_INLINE_ASM int bit_depth = avctx->bits_per_raw_sample; if (mm_flags & AV_CPU_FLAG_MMX) { @@ -1122,11 +1127,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) c->diff_bytes= diff_bytes_mmx; c->sum_abs_dctelem= sum_abs_dctelem_mmx; -#if HAVE_YASM - c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx; - c->hadamard8_diff[1]= ff_hadamard8_diff_mmx; -#endif - c->pix_norm1 = pix_norm1_mmx; c->sse[0] = sse16_mmx; c->sse[1] = sse8_mmx; @@ -1147,10 +1147,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) if (mm_flags & AV_CPU_FLAG_MMX2) { -#if HAVE_YASM - c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx2; - c->hadamard8_diff[1]= ff_hadamard8_diff_mmx2; -#endif c->sum_abs_dctelem= sum_abs_dctelem_mmx2; c->vsad[4]= vsad_intra16_mmx2; @@ -1165,13 +1161,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) if (bit_depth <= 8) c->get_pixels = get_pixels_sse2; c->sum_abs_dctelem= sum_abs_dctelem_sse2; -#if HAVE_YASM - c->sse[0] = ff_sse16_sse2; -#if HAVE_ALIGNED_STACK - c->hadamard8_diff[0]= ff_hadamard8_diff16_sse2; - c->hadamard8_diff[1]= ff_hadamard8_diff_sse2; -#endif -#endif } #if HAVE_SSSE3 @@ -1181,10 +1170,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) } c->add_8x8basis= add_8x8basis_ssse3; c->sum_abs_dctelem= sum_abs_dctelem_ssse3; -#if HAVE_YASM && HAVE_ALIGNED_STACK - c->hadamard8_diff[0]= ff_hadamard8_diff16_ssse3; - c->hadamard8_diff[1]= ff_hadamard8_diff_ssse3; -#endif } #endif @@ -1195,6 +1180,35 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) c->add_8x8basis= add_8x8basis_3dnow; } } +#endif /* HAVE_INLINE_ASM */ + +#if HAVE_YASM + if (mm_flags & AV_CPU_FLAG_MMX) { + c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx; + c->hadamard8_diff[1] = ff_hadamard8_diff_mmx; + + if (mm_flags & AV_CPU_FLAG_MMX2) { + c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx2; + c->hadamard8_diff[1] = ff_hadamard8_diff_mmx2; + } + + if (mm_flags & AV_CPU_FLAG_SSE2){ + c->sse[0] = ff_sse16_sse2; + +#if HAVE_ALIGNED_STACK + c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2; + c->hadamard8_diff[1] = ff_hadamard8_diff_sse2; +#endif + } + +#if HAVE_SSSE3 && HAVE_ALIGNED_STACK + if (mm_flags & AV_CPU_FLAG_SSSE3) { + c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3; + c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3; + } +#endif + } +#endif /* HAVE_YASM */ ff_dsputil_init_pix_mmx(c, avctx); } diff --git a/libavcodec/x86/fdct_mmx.c b/libavcodec/x86/fdct_mmx.c index 366224210f..f8fef4d8b2 100644 --- a/libavcodec/x86/fdct_mmx.c +++ b/libavcodec/x86/fdct_mmx.c @@ -34,6 +34,8 @@ #include "libavutil/x86_cpu.h" #include "libavcodec/dsputil.h" +#if HAVE_INLINE_ASM + ////////////////////////////////////////////////////////////////////// // // constants for the forward DCT @@ -579,3 +581,5 @@ void ff_fdct_sse2(int16_t *block) fdct_col_sse2(block, block1, 0); fdct_row_sse2(block1, block); } + +#endif /* HAVE_INLINE_ASM */ diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c index e0d62173cc..3b6588ae8e 100644 --- a/libavcodec/x86/fft.c +++ b/libavcodec/x86/fft.c @@ -25,6 +25,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) { #if HAVE_YASM int has_vectors = av_get_cpu_flags(); +#if ARCH_X86_32 if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) { /* 3DNow! for K6-2/3 */ s->imdct_calc = ff_imdct_calc_3dnow; @@ -37,6 +38,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) s->imdct_half = ff_imdct_half_3dnow2; s->fft_calc = ff_fft_calc_3dnow2; } +#endif if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) { /* SSE for P3/P4/K8 */ s->imdct_calc = ff_imdct_calc_sse; diff --git a/libavcodec/x86/h264dsp_mmx.c b/libavcodec/x86/h264dsp_mmx.c index 54d83f0a45..c18a4f56ce 100644 --- a/libavcodec/x86/h264dsp_mmx.c +++ b/libavcodec/x86/h264dsp_mmx.c @@ -23,8 +23,6 @@ #include "libavcodec/h264dsp.h" #include "dsputil_mmx.h" -DECLARE_ALIGNED(8, static const uint64_t, ff_pb_3_1 ) = 0x0103010301030103ULL; - /***********************************/ /* IDCT */ #define IDCT_ADD_FUNC(NUM, DEPTH, OPT) \ diff --git a/libavcodec/x86/motion_est_mmx.c b/libavcodec/x86/motion_est_mmx.c index 33bb020a5e..a903c96950 100644 --- a/libavcodec/x86/motion_est_mmx.c +++ b/libavcodec/x86/motion_est_mmx.c @@ -26,6 +26,8 @@ #include "libavcodec/dsputil.h" #include "dsputil_mmx.h" +#if HAVE_INLINE_ASM + DECLARE_ASM_CONST(8, uint64_t, round_tab)[3]={ 0x0000000000000000ULL, 0x0001000100010001ULL, @@ -422,8 +424,11 @@ static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, PIX_SAD(mmx) PIX_SAD(mmx2) +#endif /* HAVE_INLINE_ASM */ + void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx) { +#if HAVE_INLINE_ASM int mm_flags = av_get_cpu_flags(); if (mm_flags & AV_CPU_FLAG_MMX) { @@ -458,4 +463,5 @@ void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx) if ((mm_flags & AV_CPU_FLAG_SSE2) && !(mm_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) { c->sad[0]= sad16_sse2; } +#endif /* HAVE_INLINE_ASM */ } diff --git a/libavcodec/x86/mpegvideo_mmx.c b/libavcodec/x86/mpegvideo_mmx.c index 673950593b..8e72852b0a 100644 --- a/libavcodec/x86/mpegvideo_mmx.c +++ b/libavcodec/x86/mpegvideo_mmx.c @@ -29,6 +29,8 @@ #include "libavcodec/mpegvideo.h" #include "dsputil_mmx.h" +#if HAVE_INLINE_ASM + extern uint16_t ff_inv_zigzag_direct16[64]; @@ -626,8 +628,11 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){ #include "mpegvideo_mmx_template.c" #endif +#endif /* HAVE_INLINE_ASM */ + void ff_MPV_common_init_mmx(MpegEncContext *s) { +#if HAVE_INLINE_ASM int mm_flags = av_get_cpu_flags(); if (mm_flags & AV_CPU_FLAG_MMX) { @@ -662,4 +667,5 @@ void ff_MPV_common_init_mmx(MpegEncContext *s) } } } +#endif /* HAVE_INLINE_ASM */ } diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c index 13b91e4750..da688aa393 100644 --- a/libavformat/spdifenc.c +++ b/libavformat/spdifenc.c @@ -49,7 +49,6 @@ #include "spdif.h" #include "libavcodec/ac3.h" #include "libavcodec/dca.h" -#include "libavcodec/dcadata.h" #include "libavcodec/aacadtsdec.h" #include "libavutil/opt.h" @@ -253,7 +252,7 @@ static int spdif_header_dts(AVFormatContext *s, AVPacket *pkt) case DCA_MARKER_RAW_BE: blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f; core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1; - sample_rate = dca_sample_rates[(pkt->data[8] >> 2) & 0x0f]; + sample_rate = avpriv_dca_sample_rates[(pkt->data[8] >> 2) & 0x0f]; break; case DCA_MARKER_RAW_LE: blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;