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-rw-r--r--libavcodec/dsputil.c4
-rw-r--r--libavcodec/h263.c63
-rw-r--r--libavcodec/i386/mpegvideo_mmx.c8
-rw-r--r--libavcodec/mpeg4data.h24
-rw-r--r--libavcodec/mpegvideo.c12
-rw-r--r--libavcodec/mpegvideo.h6
6 files changed, 99 insertions, 18 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index dcfad05a5d..a4f900c460 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -47,6 +47,8 @@ UINT32 squareTbl[512];
extern UINT16 default_intra_matrix[64];
extern UINT16 default_non_intra_matrix[64];
+extern UINT16 ff_mpeg4_default_intra_matrix[64];
+extern UINT16 ff_mpeg4_default_non_intra_matrix[64];
UINT8 zigzag_direct[64] = {
0, 1, 8, 16, 9, 2, 3, 10,
@@ -953,6 +955,8 @@ void dsputil_init(void)
}
block_permute(default_intra_matrix);
block_permute(default_non_intra_matrix);
+ block_permute(ff_mpeg4_default_intra_matrix);
+ block_permute(ff_mpeg4_default_non_intra_matrix);
}
build_zigzag_end();
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 52127aaad9..429caf3f5a 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -624,17 +624,14 @@ static void h263_encode_motion(MpegEncContext * s, int val)
}
if (val >= 0) {
- val--;
- code = (val >> bit_size) + 1;
- bits = val & (range - 1);
sign = 0;
} else {
val = -val;
- val--;
- code = (val >> bit_size) + 1;
- bits = val & (range - 1);
sign = 1;
}
+ val--;
+ code = (val >> bit_size) + 1;
+ bits = val & (range - 1);
put_bits(&s->pb, mvtab[code][1] + 1, (mvtab[code][0] << 1) | sign);
if (bit_size > 0) {
@@ -728,7 +725,7 @@ static void init_uni_dc_tab()
{
int level, uni_code, uni_len;
- for(level=-255; level<256; level++){
+ for(level=-256; level<256; level++){
int size, v, l;
/* find number of bits */
size = 0;
@@ -2509,7 +2506,57 @@ int mpeg4_decode_picture_header(MpegEncContext * s)
}
// FIXME a bunch of grayscale shape things
- if(get_bits1(&s->gb)) printf("Quant-Type not supported\n"); /* vol_quant_type */ //FIXME
+
+ if(get_bits1(&s->gb)){ /* vol_quant_type */
+ int i, j, v;
+ /* load default matrixes */
+ for(i=0; i<64; i++){
+ v= ff_mpeg4_default_intra_matrix[i];
+ s->intra_matrix[i]= v;
+ s->chroma_intra_matrix[i]= v;
+
+ v= ff_mpeg4_default_non_intra_matrix[i];
+ s->non_intra_matrix[i]= v;
+ s->chroma_non_intra_matrix[i]= v;
+ }
+
+ /* load custom intra matrix */
+ if(get_bits1(&s->gb)){
+ for(i=0; i<64; i++){
+ v= get_bits(&s->gb, 8);
+ if(v==0) break;
+
+ j= zigzag_direct[i];
+ s->intra_matrix[j]= v;
+ s->chroma_intra_matrix[j]= v;
+ }
+ }
+
+ /* load custom non intra matrix */
+ if(get_bits1(&s->gb)){
+ for(i=0; i<64; i++){
+ v= get_bits(&s->gb, 8);
+ if(v==0) break;
+
+ j= zigzag_direct[i];
+ s->non_intra_matrix[j]= v;
+ s->chroma_non_intra_matrix[j]= v;
+ }
+
+ /* replicate last value */
+ for(; i<64; i++){
+ j= zigzag_direct[i];
+ s->non_intra_matrix[j]= v;
+ s->chroma_non_intra_matrix[j]= v;
+ }
+ }
+
+ s->dct_unquantize= s->dct_unquantize_mpeg;
+
+ // FIXME a bunch of grayscale shape things
+ }else
+ s->dct_unquantize= s->dct_unquantize_h263;
+
if(vo_ver_id != 1)
s->quarter_sample= get_bits1(&s->gb);
else s->quarter_sample=0;
diff --git a/libavcodec/i386/mpegvideo_mmx.c b/libavcodec/i386/mpegvideo_mmx.c
index f23bdd827a..28cba8a1af 100644
--- a/libavcodec/i386/mpegvideo_mmx.c
+++ b/libavcodec/i386/mpegvideo_mmx.c
@@ -440,11 +440,9 @@ void unused_var_warning_killer(){
void MPV_common_init_mmx(MpegEncContext *s)
{
if (mm_flags & MM_MMX) {
- if (s->out_format == FMT_H263)
- s->dct_unquantize = dct_unquantize_h263_mmx;
- else
- s->dct_unquantize = dct_unquantize_mpeg1_mmx;
-
+ s->dct_unquantize_h263 = dct_unquantize_h263_mmx;
+ s->dct_unquantize_mpeg = dct_unquantize_mpeg1_mmx;
+
draw_edges = draw_edges_mmx;
if(mm_flags & MM_MMXEXT){
diff --git a/libavcodec/mpeg4data.h b/libavcodec/mpeg4data.h
index 91b99625fc..d94b1d9efe 100644
--- a/libavcodec/mpeg4data.h
+++ b/libavcodec/mpeg4data.h
@@ -122,3 +122,27 @@ static const UINT16 pixel_aspect[16][2]={
{0, 0},
{0, 0},
};
+
+/* these matrixes will be permuted for the idct */
+INT16 ff_mpeg4_default_intra_matrix[64] = {
+ 8, 17, 18, 19, 21, 23, 25, 27,
+ 17, 18, 19, 21, 23, 25, 27, 28,
+ 20, 21, 22, 23, 24, 26, 28, 30,
+ 21, 22, 23, 24, 26, 28, 30, 32,
+ 22, 23, 24, 26, 28, 30, 32, 35,
+ 23, 24, 26, 28, 30, 32, 35, 38,
+ 25, 26, 28, 30, 32, 35, 38, 41,
+ 27, 28, 30, 32, 35, 38, 41, 45,
+};
+
+INT16 ff_mpeg4_default_non_intra_matrix[64] = {
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 18, 19, 20, 21, 22, 23, 24, 25,
+ 19, 20, 21, 22, 23, 24, 26, 27,
+ 20, 21, 22, 23, 25, 26, 27, 28,
+ 21, 22, 23, 24, 26, 27, 28, 30,
+ 22, 23, 24, 26, 27, 28, 30, 31,
+ 23, 24, 25, 27, 28, 30, 31, 33,
+};
+
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index f35483e3a1..417c63ea63 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -110,14 +110,18 @@ int MPV_common_init(MpegEncContext *s)
int c_size, i;
UINT8 *pict;
- if (s->out_format == FMT_H263)
- s->dct_unquantize = dct_unquantize_h263_c;
- else
- s->dct_unquantize = dct_unquantize_mpeg1_c;
+ s->dct_unquantize_h263 = dct_unquantize_h263_c;
+ s->dct_unquantize_mpeg = dct_unquantize_mpeg1_c;
#ifdef HAVE_MMX
MPV_common_init_mmx(s);
#endif
+ //setup default unquantizers (mpeg4 might change it later)
+ if(s->out_format == FMT_H263)
+ s->dct_unquantize = s->dct_unquantize_h263;
+ else
+ s->dct_unquantize = s->dct_unquantize_mpeg;
+
s->mb_width = (s->width + 15) / 16;
s->mb_height = (s->height + 15) / 16;
s->mb_num = s->mb_width * s->mb_height;
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index f809a12550..b7fe207a52 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -309,7 +309,11 @@ typedef struct MpegEncContext {
DCTELEM intra_block[6][64] __align8;
DCTELEM inter_block[6][64] __align8;
DCTELEM inter4v_block[6][64] __align8;
- void (*dct_unquantize)(struct MpegEncContext *s,
+ void (*dct_unquantize_mpeg)(struct MpegEncContext *s,
+ DCTELEM *block, int n, int qscale);
+ void (*dct_unquantize_h263)(struct MpegEncContext *s,
+ DCTELEM *block, int n, int qscale);
+ void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
DCTELEM *block, int n, int qscale);
} MpegEncContext;
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