mpv/libmpeg2/libmpeg2_changes.diff

--- libmpeg2/cpu_accel.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/cpu_accel.c	2006-06-16 20:12:50.000000000 +0200
@@ -29,9 +33,13 @@
 #include "attributes.h"
 #include "mpeg2_internal.h"
 
+#include "cpudetect.h"
+
 #if defined(ARCH_X86) || defined(ARCH_X86_64)
 static inline uint32_t arch_accel (uint32_t accel)
 {
+/* Use MPlayer CPU detection instead of libmpeg2 variant. */
+#if 0
     if (accel & (MPEG2_ACCEL_X86_3DNOW | MPEG2_ACCEL_X86_MMXEXT))
 	accel |= MPEG2_ACCEL_X86_MMX;
 	
@@ -124,6 +132,21 @@
 #endif /* ACCEL_DETECT */
 
     return accel;
+
+#else /* 0 */
+    accel = 0;
+    if (gCpuCaps.hasMMX)
+        accel |= MPEG2_ACCEL_X86_MMX;
+    if (gCpuCaps.hasSSE2)
+	accel |= MPEG2_ACCEL_X86_SSE2;
+    if (gCpuCaps.hasMMX2)
+	accel |= MPEG2_ACCEL_X86_MMXEXT;
+    if (gCpuCaps.has3DNow)
+	accel |= MPEG2_ACCEL_X86_3DNOW;
+
+    return accel;
+
+#endif /* 0 */
 }
 #endif /* ARCH_X86 || ARCH_X86_64 */
 
--- libmpeg2/decode.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/decode.c	2006-06-16 20:12:50.000000000 +0200
@@ -345,6 +349,15 @@
     fbuf->buf[1] = buf[1];
     fbuf->buf[2] = buf[2];
     fbuf->id = id;
+    // HACK! FIXME! At first I frame, copy pointers to prediction frame too!
+    if (mpeg2dec->custom_fbuf && !mpeg2dec->fbuf[1]->buf[0]){
+	mpeg2dec->fbuf[1]->buf[0]=buf[0];
+	mpeg2dec->fbuf[1]->buf[1]=buf[1];
+	mpeg2dec->fbuf[1]->buf[2]=buf[2];
+	mpeg2dec->fbuf[1]->id=NULL;
+    }
+//    printf("libmpeg2: FBUF 0:%p 1:%p 2:%p\n",
+//	mpeg2dec->fbuf[0]->buf[0],mpeg2dec->fbuf[1]->buf[0],mpeg2dec->fbuf[2]->buf[0]);
 }
 
 void mpeg2_custom_fbuf (mpeg2dec_t * mpeg2dec, int custom_fbuf)
--- libmpeg2/header.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/header.c	2006-06-16 20:12:50.000000000 +0200
@@ -100,6 +104,9 @@
     mpeg2dec->decoder.convert = NULL;
     mpeg2dec->decoder.convert_id = NULL;
     mpeg2dec->picture = mpeg2dec->pictures;
+    memset(&mpeg2dec->fbuf_alloc[0].fbuf, 0, sizeof(mpeg2_fbuf_t));
+    memset(&mpeg2dec->fbuf_alloc[1].fbuf, 0, sizeof(mpeg2_fbuf_t));
+    memset(&mpeg2dec->fbuf_alloc[2].fbuf, 0, sizeof(mpeg2_fbuf_t));
     mpeg2dec->fbuf[0] = &mpeg2dec->fbuf_alloc[0].fbuf;
     mpeg2dec->fbuf[1] = &mpeg2dec->fbuf_alloc[1].fbuf;
     mpeg2dec->fbuf[2] = &mpeg2dec->fbuf_alloc[2].fbuf;
@@ -872,6 +879,7 @@
 	mpeg2dec->scaled[idx] = decoder->q_scale_type;
 	for (i = 0; i < 32; i++) {
 	    k = decoder->q_scale_type ? non_linear_scale[i] : (i << 1);
+	    decoder->quantizer_scales[i] = k;
 	    for (j = 0; j < 64; j++)
 		decoder->quantizer_prescale[idx][i][j] =
 		    k * mpeg2dec->quantizer_matrix[idx][j];
--- libmpeg2/idct.c	(revision 26652)
+++ libmpeg2/idct.c	(working copy)
@@ -235,34 +239,40 @@
 
 void mpeg2_idct_init (uint32_t accel)
 {
-#ifdef ARCH_X86
+#ifdef HAVE_SSE2
     if (accel & MPEG2_ACCEL_X86_SSE2) {
 	mpeg2_idct_copy = mpeg2_idct_copy_sse2;
 	mpeg2_idct_add = mpeg2_idct_add_sse2;
 	mpeg2_idct_mmx_init ();
-    } else if (accel & MPEG2_ACCEL_X86_MMXEXT) {
+    } else
+#elif HAVE_MMX2
+    if (accel & MPEG2_ACCEL_X86_MMXEXT) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mmxext;
 	mpeg2_idct_add = mpeg2_idct_add_mmxext;
 	mpeg2_idct_mmx_init ();
-    } else if (accel & MPEG2_ACCEL_X86_MMX) {
+    } else
+#elif HAVE_MMX
+    if (accel & MPEG2_ACCEL_X86_MMX) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mmx;
 	mpeg2_idct_add = mpeg2_idct_add_mmx;
 	mpeg2_idct_mmx_init ();
     } else
 #endif
-#ifdef ARCH_PPC
+#ifdef HAVE_ALTIVEC
     if (accel & MPEG2_ACCEL_PPC_ALTIVEC) {
 	mpeg2_idct_copy = mpeg2_idct_copy_altivec;
 	mpeg2_idct_add = mpeg2_idct_add_altivec;
 	mpeg2_idct_altivec_init ();
     } else
 #endif
-#ifdef ARCH_ALPHA
+#ifdef HAVE_VIS
     if (accel & MPEG2_ACCEL_ALPHA_MVI) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mvi;
 	mpeg2_idct_add = mpeg2_idct_add_mvi;
 	mpeg2_idct_alpha_init ();
-    } else if (accel & MPEG2_ACCEL_ALPHA) {
+    } else
+#elif ARCH_ALPHA
+    if (accel & MPEG2_ACCEL_ALPHA) {
 	int i;
 
 	mpeg2_idct_copy = mpeg2_idct_copy_alpha;
--- libmpeg2/motion_comp.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/motion_comp.c	2006-06-16 20:12:50.000000000 +0200
@@ -33,16 +37,22 @@
 
 void mpeg2_mc_init (uint32_t accel)
 {
-#ifdef ARCH_X86
+#ifdef HAVE_MMX2
     if (accel & MPEG2_ACCEL_X86_MMXEXT)
 	mpeg2_mc = mpeg2_mc_mmxext;
-    else if (accel & MPEG2_ACCEL_X86_3DNOW)
+    else
+#endif
+#ifdef HAVE_3DNOW
+    if (accel & MPEG2_ACCEL_X86_3DNOW)
 	mpeg2_mc = mpeg2_mc_3dnow;
-    else if (accel & MPEG2_ACCEL_X86_MMX)
+    else
+#endif
+#ifdef HAVE_MMX
+    if (accel & MPEG2_ACCEL_X86_MMX)
 	mpeg2_mc = mpeg2_mc_mmx;
     else
 #endif
-#ifdef ARCH_PPC
+#ifdef HAVE_ALTIVEC
     if (accel & MPEG2_ACCEL_PPC_ALTIVEC)
 	mpeg2_mc = mpeg2_mc_altivec;
     else
@@ -52,15 +62,15 @@
 	mpeg2_mc = mpeg2_mc_alpha;
     else
 #endif
-#ifdef ARCH_SPARC
+#ifdef HAVE_VIS
     if (accel & MPEG2_ACCEL_SPARC_VIS)
 	mpeg2_mc = mpeg2_mc_vis;
     else
 #endif
 #ifdef ARCH_ARM
-    if (accel & MPEG2_ACCEL_ARM) {
+    if (accel & MPEG2_ACCEL_ARM)
 	mpeg2_mc = mpeg2_mc_arm;
-    } else
+    else
 #endif
 	mpeg2_mc = mpeg2_mc_c;
 }
--- libmpeg2/mpeg2_internal.h	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/mpeg2_internal.h	2006-06-16 20:12:50.000000000 +0200
@@ -152,6 +156,11 @@
 
     /* XXX: stuff due to xine shit */
     int8_t q_scale_type;
+
+    int quantizer_scales[32];
+    int quantizer_scale;
+    char* quant_store;
+    int quant_stride;
 };
 
 typedef struct {
@@ -223,6 +232,9 @@
     //int8_t q_scale_type, scaled[4];
     uint8_t quantizer_matrix[4][64];
     uint8_t new_quantizer_matrix[4][64];
+
+    unsigned char *pending_buffer;
+    int pending_length;
 };
 
 typedef struct {
--- libmpeg2/slice.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/slice.c	2006-06-16 20:12:50.000000000 +0200
@@ -142,6 +146,7 @@
 
     quantizer_scale_code = UBITS (bit_buf, 5);
     DUMPBITS (bit_buf, bits, 5);
+    decoder->quantizer_scale = decoder->quantizer_scales[quantizer_scale_code];
 
     decoder->quantizer_matrix[0] =
 	decoder->quantizer_prescale[0][quantizer_scale_code];
@@ -1564,6 +1569,24 @@
 
 #define NEXT_MACROBLOCK							\
 do {									\
+    if(decoder->quant_store) {						\
+	if (decoder->picture_structure == TOP_FIELD)			\
+	    decoder->quant_store[2 * decoder->quant_stride		\
+				 * (decoder->v_offset >> 4)		\
+				 + (decoder->offset >> 4)]		\
+		= decoder->quantizer_scale;				\
+	else if (decoder->picture_structure == BOTTOM_FIELD)		\
+	    decoder->quant_store[2 * decoder->quant_stride		\
+				 * (decoder->v_offset >> 4)		\
+				 + decoder->quant_stride		\
+				 + (decoder->offset >> 4)]		\
+		= decoder->quantizer_scale;				\
+	else								\
+	    decoder->quant_store[decoder->quant_stride			\
+				 * (decoder->v_offset >> 4)		\
+				 + (decoder->offset >> 4)]		\
+		= decoder->quantizer_scale;				\
+    }									\
     decoder->offset += 16;						\
     if (decoder->offset == decoder->width) {				\
 	do { /* just so we can use the break statement */		\