/* * Generic DCT based hybrid video encoder * Copyright (c) 2000, 2001, 2002 Fabrice Bellard. * * This library 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 of the License, or (at your option) any later version. * * This library 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 this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** * @file mpegvideo.h * mpegvideo header. */ #ifndef AVCODEC_MPEGVIDEO_H #define AVCODEC_MPEGVIDEO_H #include "dsputil.h" #define FRAME_SKIPED 100 ///< return value for header parsers if frame is not coded enum OutputFormat { FMT_MPEG1, FMT_H263, FMT_MJPEG, }; #define EDGE_WIDTH 16 #define MPEG_BUF_SIZE (16 * 1024) #define QMAT_SHIFT_MMX 16 #define QMAT_SHIFT 22 #define MAX_FCODE 7 #define MAX_MV 2048 #define MAX_PICTURE_COUNT 15 #define ME_MAP_SIZE 64 #define ME_MAP_SHIFT 3 #define ME_MAP_MV_BITS 11 /* run length table */ #define MAX_RUN 64 #define MAX_LEVEL 64 #define I_TYPE FF_I_TYPE ///< Intra #define P_TYPE FF_P_TYPE ///< Predicted #define B_TYPE FF_B_TYPE ///< Bi-dir predicted #define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4 typedef struct Predictor{ double coeff; double count; double decay; } Predictor; typedef struct RateControlEntry{ int pict_type; float qscale; int mv_bits; int i_tex_bits; int p_tex_bits; int misc_bits; uint64_t expected_bits; int new_pict_type; float new_qscale; int mc_mb_var_sum; int mb_var_sum; int i_count; int f_code; int b_code; }RateControlEntry; /** * rate control context. */ typedef struct RateControlContext{ FILE *stats_file; int num_entries; ///< number of RateControlEntries RateControlEntry *entry; int buffer_index; ///< amount of bits in the video/audio buffer Predictor pred[5]; double short_term_qsum; ///< sum of recent qscales double short_term_qcount; ///< count of recent qscales double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init) double last_qscale; double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff int last_mc_mb_var_sum; int last_mb_var_sum; uint64_t i_cplx_sum[5]; uint64_t p_cplx_sum[5]; uint64_t mv_bits_sum[5]; uint64_t qscale_sum[5]; int frame_count[5]; int last_non_b_pict_type; }RateControlContext; /** * Scantable. */ typedef struct ScanTable{ const uint8_t *scantable; uint8_t permutated[64]; uint8_t raster_end[64]; #ifdef ARCH_POWERPC /** Used by dct_quantise_alitvec to find last-non-zero */ uint8_t __align8 inverse[64]; #endif } ScanTable; /** * Picture. */ typedef struct Picture{ FF_COMMON_FRAME int mb_var_sum; ///< sum of MB variance for current frame int mc_mb_var_sum; ///< motion compensated MB variance for current frame uint16_t *mb_var; ///< Table for MB variances uint16_t *mc_mb_var; ///< Table for motion compensated MB variances uint8_t *mb_mean; ///< Table for MB luminance int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decission int b_frame_score; /* */ } Picture; typedef struct ParseContext{ uint8_t *buffer; int index; int last_index; int buffer_size; int state; int frame_start_found; } ParseContext; struct MpegEncContext; /** * Motion estimation context. */ typedef struct MotionEstContext{ int skip; ///< set if ME is skiped for the current MB int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME int direct_basis_mv[4][2]; uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free uint32_t *map; ///< map to avoid duplicate evaluations uint32_t *score_map; ///< map to store the scores int map_generation; int pre_penalty_factor; int penalty_factor; int sub_penalty_factor; int mb_penalty_factor; int pre_pass; ///< = 1 for the pre pass int dia_size; uint16_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV int (*sub_motion_search)(struct MpegEncContext * s, int *mx_ptr, int *my_ptr, int dmin, int xmin, int ymin, int xmax, int ymax, int pred_x, int pred_y, Picture *ref_picture, int n, int size, uint16_t * const mv_penalty); int (*motion_search[7])(struct MpegEncContext * s, int block, int *mx_ptr, int *my_ptr, int P[10][2], int pred_x, int pred_y, int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2], int ref_mv_scale, uint16_t * const mv_penalty); int (*pre_motion_search)(struct MpegEncContext * s, int block, int *mx_ptr, int *my_ptr, int P[10][2], int pred_x, int pred_y, int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2], int ref_mv_scale, uint16_t * const mv_penalty); int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, Picture *ref_picture, uint16_t * const mv_penalty); }MotionEstContext; /** * MpegEncContext. */ typedef struct MpegEncContext { struct AVCodecContext *avctx; /* the following parameters must be initialized before encoding */ int width, height;///< picture size. must be a multiple of 16 int gop_size; int intra_only; ///< if true, only intra pictures are generated int bit_rate; ///< wanted bit rate int bit_rate_tolerance; ///< amount of +- bits (>0) enum OutputFormat out_format; ///< output format int h263_pred; ///< use mpeg4/h263 ac/dc predictions /* the following codec id fields are deprecated in favor of codec_id */ int h263_plus; ///< h263 plus headers int h263_rv10; ///< use RV10 variation for H263 int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead) int h263_intel; ///< use I263 intel h263 header int codec_id; /* see CODEC_ID_xxx */ int fixed_qscale; ///< fixed qscale if non zero float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) float qblur; ///< amount of qscale smoothing over time (0.0-1.0) int qmin; ///< min qscale int qmax; ///< max qscale int max_qdiff; ///< max qscale difference between frames int encoding; ///< true if we are encoding (vs decoding) int flags; ///< AVCodecContext.flags (HQ, MV4, ...) int max_b_frames; ///< max number of b-frames for encoding int b_frame_strategy; int luma_elim_threshold; int chroma_elim_threshold; int strict_std_compliance; ///< strictly follow the std (MPEG4, ...) int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically /* the following fields are managed internally by the encoder */ /** bit output */ PutBitContext pb; /* sequence parameters */ int context_initialized; int input_picture_number; int picture_number; int picture_in_gop_number; ///< 0-> first pic in gop, ... int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input int mb_width, mb_height; ///< number of MBs horizontally & vertically int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replicateion) int mb_num; ///< number of MBs of a picture int linesize; ///< line size, in bytes, may be different from width int uvlinesize; ///< line size, for chroma in bytes, may be different from width Picture picture[MAX_PICTURE_COUNT]; ///< main picture buffer Picture *input_picture[MAX_PICTURE_COUNT]; ///< next pictures on display order for encoding Picture *reordered_input_picture[MAX_PICTURE_COUNT]; ///< pointer to the next pictures in codedorder for encoding /** * copy of the previous picture structure. * note, linesize & data, might not match the previous picture (for field pictures) */ Picture last_picture; /** * copy of the next picture structure. * note, linesize & data, might not match the next picture (for field pictures) */ Picture next_picture; /** * copy of the source picture structure for encoding. * note, linesize & data, might not match the source picture (for field pictures) */ Picture new_picture; /** * copy of the current picture structure. * note, linesize & data, might not match the current picture (for field pictures) */ Picture current_picture; ///< buffer to store the decompressed current picture Picture *last_picture_ptr; ///< pointer to the previous picture. Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred) Picture *new_picture_ptr; ///< pointer to the source picture for encoding Picture *current_picture_ptr; ///< pointer to the current picture int last_dc[3]; ///< last DC values for MPEG1 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous int y_dc_scale, c_dc_scale; uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1) int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous int ac_pred; uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip #define PREV_PICT_TYPES_BUFFER_SIZE 256 int mb_skiped; ///< MUST BE SET only during DECODING uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example) and used for b-frame encoding & decoding (contains skip table of next P Frame) */ uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding uint8_t *allocated_edge_emu_buffer; uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer int qscale; ///< QP float frame_qscale; ///< qscale from the frame level rc FIXME remove int adaptive_quant; ///< use adaptive quantization int dquant; ///< qscale difference to prev qscale int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ... int last_pict_type; int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol int frame_rate_index; /* motion compensation */ int unrestricted_mv; ///< mv can point outside of the coded picture int h263_long_vectors; ///< use horrible h263v1 long vector mode DSPContext dsp; ///< pointers for accelerated dsp fucntions int f_code; ///< forward MV resolution int b_code; ///< backward MV resolution for B Frames (mpeg4) int16_t (*motion_val)[2]; ///< used for MV prediction (4MV per MB) int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding int me_method; ///< ME algorithm int scene_change_score; int mv_dir; #define MV_DIR_BACKWARD 1 #define MV_DIR_FORWARD 2 #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) int mv_type; #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV) #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors /**motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend on type third " : 0 = x, 1 = y */ int mv[2][4][2]; int field_select[2][2]; int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4 uint8_t *fcode_tab; ///< smallest fcode needed for each MV MotionEstContext me; int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is allways 0 */ int hurry_up; /**< when set to 1 during decoding, b frames will be skiped when set to 2 idct/dequant will be skipped too */ /* macroblock layer */ int mb_x, mb_y; int mb_incr; int mb_intra; uint8_t *mb_type; ///< Table for MB type #define MB_TYPE_INTRA 0x01 #define MB_TYPE_INTER 0x02 #define MB_TYPE_INTER4V 0x04 #define MB_TYPE_SKIPED 0x08 #define MB_TYPE_GMC 0x10 #define MB_TYPE_DIRECT 0x10 #define MB_TYPE_FORWARD 0x20 #define MB_TYPE_BACKWARD 0x40 #define MB_TYPE_BIDIR 0x80 int block_index[6]; ///< index to current MB in block based arrays with edges int block_wrap[6]; /** matrix transmitted in the bitstream */ uint16_t intra_matrix[64]; uint16_t chroma_intra_matrix[64]; uint16_t inter_matrix[64]; uint16_t chroma_inter_matrix[64]; #define QUANT_BIAS_SHIFT 4 int intra_quant_bias; ///< bias for the quantizer int inter_quant_bias; ///< bias for the quantizer int min_qcoeff; ///< minimum encodable coefficient int max_qcoeff; ///< maximum encodable coefficient int ac_esc_length; ///< num of bits needed to encode the longest esc uint8_t *intra_ac_vlc_length; uint8_t *intra_ac_vlc_last_length; uint8_t *inter_ac_vlc_length; uint8_t *inter_ac_vlc_last_length; uint8_t *luma_dc_vlc_length; uint8_t *chroma_dc_vlc_length; #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) /** precomputed matrix (combine qscale and DCT renorm) */ int __align8 q_intra_matrix[32][64]; int __align8 q_inter_matrix[32][64]; /** identical to the above but for MMX & these are not permutated */ uint16_t __align8 q_intra_matrix16[32][64]; uint16_t __align8 q_inter_matrix16[32][64]; uint16_t __align8 q_intra_matrix16_bias[32][64]; uint16_t __align8 q_inter_matrix16_bias[32][64]; int block_last_index[6]; ///< last non zero coefficient in block /* scantables */ ScanTable __align8 intra_scantable; ScanTable intra_h_scantable; ScanTable intra_v_scantable; ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage void *opaque; ///< private data for the user /* bit rate control */ int I_frame_bits; //FIXME used in mpeg12 ... int64_t wanted_bits; int64_t total_bits; int frame_bits; ///< bits used for the current frame RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c /* statistics, used for 2-pass encoding */ int mv_bits; int header_bits; int i_tex_bits; int p_tex_bits; int i_count; int f_count; int b_count; int skip_count; int misc_bits; ///< cbp, mb_type int last_bits; ///< temp var used for calculating the above vars /* error concealment / resync */ uint8_t *error_status_table; ///< table of the error status of each MB #define VP_START 1 ///< current MB is the first after a resync marker #define AC_ERROR 2 #define DC_ERROR 4 #define MV_ERROR 8 #define AC_END 16 #define DC_END 32 #define MV_END 64 //FIXME some prefix? int resync_mb_x; ///< x position of last resync marker int resync_mb_y; ///< y position of last resync marker GetBitContext last_resync_gb; ///< used to search for the next resync marker int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only) int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames int error_resilience; ParseContext parse_context; /* H.263 specific */ int gob_number; int gob_index; /* H.263+ specific */ int umvplus; ///< == H263+ && unrestricted_mv int h263_aic; ///< Advanded INTRA Coding (AIC) int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top /* mpeg4 specific */ int time_increment_resolution; int time_increment_bits; ///< number of bits to represent the fractional part of time int last_time_base; int time_base; ///< time in seconds of last I,P,S Frame int64_t time; ///< time of current frame int64_t last_non_b_time; uint16_t pp_time; ///< time distance between the last 2 p,s,i frames uint16_t pb_time; ///< time distance between the last b and p,s,i frame uint16_t pp_field_time; uint16_t pb_field_time; ///< like above, just for interlaced int shape; int vol_sprite_usage; int sprite_width; int sprite_height; int sprite_left; int sprite_top; int sprite_brightness_change; int num_sprite_warping_points; int real_sprite_warping_points; int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY] int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY] int sprite_shift[2]; ///< sprite shift [isChroma] int mcsel; int quant_precision; int quarter_sample; ///< 1->qpel, 0->half pel ME/MC int scalability; int hierachy_type; int enhancement_type; int new_pred; int reduced_res_vop; int aspect_ratio_info; int aspected_width; int aspected_height; int sprite_warping_accuracy; int low_latency_sprite; int data_partitioning; ///< data partitioning flag from header int partitioned_frame; ///< is current frame partitioned int rvlc; ///< reversible vlc int resync_marker; ///< could this stream contain resync markers int low_delay; ///< no reordering needed / has no b-frames int vo_type; int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders PutBitContext tex_pb; ///< used for data partitioned VOPs PutBitContext pb2; ///< used for data partitioned VOPs #define PB_BUFFER_SIZE 1024*256 uint8_t *tex_pb_buffer; uint8_t *pb2_buffer; int mpeg_quant; #define CO_LOCATED_TYPE_4MV 1 #define CO_LOCATED_TYPE_FIELDMV 2 int8_t *co_located_type_table; ///< 4mv & field_mv info for next b frame int16_t (*field_mv_table)[2][2]; ///< used for interlaced b frame decoding int8_t (*field_select_table)[2]; ///< wtf, no really another table for interlaced b frames int t_frame; ///< time distance of first I -> B, used for interlaced b frames int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4 /* divx specific, used to workaround (many) bugs in divx5 */ int divx_version; int divx_build; #define BITSTREAM_BUFFER_SIZE 1024*256 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them int bitstream_buffer_size; int xvid_build; /* lavc specific stuff, used to workaround bugs in libavcodec */ int ffmpeg_version; int lavc_build; /* RV10 specific */ int rv10_version; ///< RV10 version: 0 or 3 int rv10_first_dc_coded[3]; /* MJPEG specific */ struct MJpegContext *mjpeg_ctx; int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1} int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1} int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ? int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers /* MSMPEG4 specific */ int mv_table_index; int rl_table_index; int rl_chroma_table_index; int dc_table_index; int use_skip_mb_code; int slice_height; ///< in macroblocks int first_slice_line; ///< used in mpeg4 too to handle resync markers int flipflop_rounding; int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8 int per_mb_rl_table; int esc3_level_length; int esc3_run_length; /** [mb_intra][isChroma][level][run][last] */ int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]; int inter_intra_pred; int mspel; /* decompression specific */ GetBitContext gb; /* Mpeg1 specific */ int fake_picture_number; ///< picture number at the bitstream frame rate int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific int last_mv_dir; ///< last mv_dir, used for b frame encoding /* MPEG2 specific - I wish I had not to support this mess. */ int progressive_sequence; int mpeg_f_code[2][2]; int picture_structure; /* picture type */ #define PICT_TOP_FIELD 1 #define PICT_BOTTOM_FIELD 2 #define PICT_FRAME 3 int intra_dc_precision; int frame_pred_frame_dct; int top_field_first; int concealment_motion_vectors; int q_scale_type; int intra_vlc_format; int alternate_scan; int repeat_first_field; int chroma_420_type; int progressive_frame; int mpeg2; int full_pel[2]; int interlaced_dct; int first_slice; int first_field; /* RTP specific */ /* These are explained on avcodec.h */ int rtp_mode; int rtp_payload_size; void (*rtp_callback)(void *data, int size, int packet_number); uint8_t *ptr_lastgob; uint8_t *ptr_last_mb_line; uint32_t mb_line_avgsize; DCTELEM (*block)[64]; ///< points to one of the following blocks DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch() #define SLICE_OK 0 #define SLICE_ERROR -1 #define SLICE_END -2 //end marker found #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded void (*dct_unquantize_mpeg1)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale); void (*dct_unquantize_mpeg2)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale); void (*dct_unquantize_h263)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale); void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) DCTELEM *block/*align 16*/, int n, int qscale); int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); } MpegEncContext; int DCT_common_init(MpegEncContext *s); int MPV_common_init(MpegEncContext *s); void MPV_common_end(MpegEncContext *s); void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]); int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx); void MPV_frame_end(MpegEncContext *s); int MPV_encode_init(AVCodecContext *avctx); int MPV_encode_end(AVCodecContext *avctx); int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data); #ifdef HAVE_MMX void MPV_common_init_mmx(MpegEncContext *s); #endif #ifdef ARCH_ALPHA void MPV_common_init_axp(MpegEncContext *s); #endif #ifdef HAVE_MLIB void MPV_common_init_mlib(MpegEncContext *s); #endif #ifdef HAVE_MMI void MPV_common_init_mmi(MpegEncContext *s); #endif #ifdef ARCH_ARMV4L void MPV_common_init_armv4l(MpegEncContext *s); #endif #ifdef ARCH_POWERPC void MPV_common_init_ppc(MpegEncContext *s); #endif extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w); void ff_conceal_past_errors(MpegEncContext *s, int conceal_all); void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length); void ff_clean_intra_table_entries(MpegEncContext *s); void ff_init_scantable(MpegEncContext *s, ScanTable *st, const uint8_t *src_scantable); void ff_error_resilience(MpegEncContext *s); void ff_draw_horiz_band(MpegEncContext *s, int y, int h); void ff_emulated_edge_mc(MpegEncContext *s, uint8_t *src, int linesize, int block_w, int block_h, int src_x, int src_y, int w, int h); char ff_get_pict_type_char(int pict_type); int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size); extern enum PixelFormat ff_yuv420p_list[2]; static inline void ff_init_block_index(MpegEncContext *s){ s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2; s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2; s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2; s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2; s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x; s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x; } static inline void ff_update_block_index(MpegEncContext *s){ s->block_index[0]+=2; s->block_index[1]+=2; s->block_index[2]+=2; s->block_index[3]+=2; s->block_index[4]++; s->block_index[5]++; } /* motion_est.c */ void ff_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); void ff_estimate_b_frame_motion(MpegEncContext * s, int mb_x, int mb_y); int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type); void ff_fix_long_p_mvs(MpegEncContext * s); void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type); void ff_init_me(MpegEncContext *s); int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); /* mpeg12.c */ extern const int16_t ff_mpeg1_default_intra_matrix[64]; extern const int16_t ff_mpeg1_default_non_intra_matrix[64]; extern uint8_t ff_mpeg1_dc_scale_table[128]; void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number); void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y); void ff_mpeg1_encode_init(MpegEncContext *s); /** RLTable. */ typedef struct RLTable { int n; ///< number of entries of table_vlc minus 1 int last; ///< number of values for last = 0 const uint16_t (*table_vlc)[2]; const int8_t *table_run; const int8_t *table_level; uint8_t *index_run[2]; ///< encoding only int8_t *max_level[2]; ///< encoding & decoding int8_t *max_run[2]; ///< encoding & decoding VLC vlc; ///< decoding only deprected FIXME remove RL_VLC_ELEM *rl_vlc[32]; ///< decoding only } RLTable; void init_rl(RLTable *rl); void init_vlc_rl(RLTable *rl); static inline int get_rl_index(const RLTable *rl, int last, int run, int level) { int index; index = rl->index_run[last][run]; if (index >= rl->n) return rl->n; if (level > rl->max_level[last][run]) return rl->n; return index + level - 1; } extern uint8_t ff_mpeg4_y_dc_scale_table[32]; extern uint8_t ff_mpeg4_c_dc_scale_table[32]; extern const int16_t ff_mpeg4_default_intra_matrix[64]; extern const int16_t ff_mpeg4_default_non_intra_matrix[64]; int ff_h263_decode_init(AVCodecContext *avctx); int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size); int ff_h263_decode_end(AVCodecContext *avctx); void h263_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y); void mpeg4_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y); void h263_encode_picture_header(MpegEncContext *s, int picture_number); int h263_encode_gob_header(MpegEncContext * s, int mb_line); int16_t *h263_pred_motion(MpegEncContext * s, int block, int *px, int *py); void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n, int dir); void ff_set_mpeg4_time(MpegEncContext * s, int picture_number); void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number); void h263_encode_init(MpegEncContext *s); void h263_decode_init_vlc(MpegEncContext *s); int h263_decode_picture_header(MpegEncContext *s); int ff_h263_decode_gob_header(MpegEncContext *s); int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb); int intel_h263_decode_picture_header(MpegEncContext *s); int ff_h263_decode_mb(MpegEncContext *s, DCTELEM block[6][64]); int h263_get_picture_format(int width, int height); void ff_mpeg4_encode_video_packet_header(MpegEncContext *s); void ff_mpeg4_clean_buffers(MpegEncContext *s); void ff_mpeg4_stuffing(PutBitContext * pbc); void ff_mpeg4_init_partitions(MpegEncContext *s); void ff_mpeg4_merge_partitions(MpegEncContext *s); void ff_clean_mpeg4_qscales(MpegEncContext *s); void ff_clean_h263_qscales(MpegEncContext *s); int ff_mpeg4_decode_partitions(MpegEncContext *s); int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s); int ff_h263_resync(MpegEncContext *s); int ff_h263_get_gob_height(MpegEncContext *s); void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my); inline int ff_h263_round_chroma(int x); /* rv10.c */ void rv10_encode_picture_header(MpegEncContext *s, int picture_number); int rv_decode_dc(MpegEncContext *s, int n); /* msmpeg4.c */ void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number); void msmpeg4_encode_ext_header(MpegEncContext * s); void msmpeg4_encode_mb(MpegEncContext * s, DCTELEM block[6][64], int motion_x, int motion_y); int msmpeg4_decode_picture_header(MpegEncContext * s); int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); int ff_msmpeg4_decode_init(MpegEncContext *s); void ff_msmpeg4_encode_init(MpegEncContext *s); int ff_wmv2_decode_picture_header(MpegEncContext * s); void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); void ff_mspel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func (*pix_op)[4], int motion_x, int motion_y, int h); int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); void ff_wmv2_encode_mb(MpegEncContext * s, DCTELEM block[6][64], int motion_x, int motion_y); /* mjpegenc.c */ int mjpeg_init(MpegEncContext *s); void mjpeg_close(MpegEncContext *s); void mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]); void mjpeg_picture_header(MpegEncContext *s); void mjpeg_picture_trailer(MpegEncContext *s); /* rate control */ int ff_rate_control_init(MpegEncContext *s); float ff_rate_estimate_qscale(MpegEncContext *s); void ff_write_pass1_stats(MpegEncContext *s); void ff_rate_control_uninit(MpegEncContext *s); double ff_eval(char *s, double *const_value, const char **const_name, double (**func1)(void *, double), const char **func1_name, double (**func2)(void *, double, double), char **func2_name, void *opaque); #endif /* AVCODEC_MPEGVIDEO_H */