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ffmpeg.wasm-core
Commit 0d33db8a authored by anonymous's avatar anonymous Committed by Michael Niedermayer
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In that patch: 

- avctx and gb elements were removed from VC9Context, hence a larger diff
- some code was added to h263dec.c regarding CODEC_ID_WMV3 (should apply to CODEC_ID_VC9 too)
- VLC tables and other related tables were made global whenever this seemed necessary; appropriate changes were therefore made to other parts of the code using those tables
- the change for the bitplane management to a struct (some of them should eventually be mapped to MpegEncContext arrays) wasn't associated with the proper frees; should be fixed now
patch by anonymous

better names for globalized tables by me

Originally committed as revision 3905 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 093c6e50
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Inline Side-by-side
Showing with 481 additions and 325 deletions
libavcodec/h263dec.c
View file @ 0d33db8a
......@@ -85,6 +85,11 @@ int ff_h263_decode_init(AVCodecContext *avctx)
s->h263_pred = 1;
s->msmpeg4_version=5;
break;
case CODEC_ID_WMV3:
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->msmpeg4_version=6;
break;
case CODEC_ID_H263I:
break;
case CODEC_ID_FLV1:
......
libavcodec/msmpeg4.c
View file @ 0d33db8a
......@@ -75,6 +75,8 @@ static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
static int msmpeg4v34_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
static int wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
/* vc9 externs */
extern uint8_t wmv3_dc_scale_table[32];
#ifdef DEBUG
int intra_count = 0;
......@@ -175,6 +177,11 @@ static void common_init(MpegEncContext * s)
s->y_dc_scale_table= wmv1_y_dc_scale_table;
s->c_dc_scale_table= wmv1_c_dc_scale_table;
break;
case 6:
s->y_dc_scale_table= wmv3_dc_scale_table;
s->c_dc_scale_table= wmv3_dc_scale_table;
break;
}
......@@ -629,7 +636,7 @@ void msmpeg4_encode_mb(MpegEncContext * s,
if (s->pict_type == I_TYPE) {
set_stat(ST_INTRA_MB);
put_bits(&s->pb,
table_mb_intra[coded_cbp][1], table_mb_intra[coded_cbp][0]);
ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]);
} else {
if (s->use_skip_mb_code)
put_bits(&s->pb, 1, 0); /* mb coded */
......@@ -1030,9 +1037,9 @@ else
/* decoding stuff */
static VLC mb_non_intra_vlc[4];
static VLC mb_intra_vlc;
static VLC dc_lum_vlc[2];
static VLC dc_chroma_vlc[2];
VLC ff_msmp4_mb_i_vlc;
VLC ff_msmp4_dc_luma_vlc[2];
VLC ff_msmp4_dc_chroma_vlc[2];
static VLC v2_dc_lum_vlc;
static VLC v2_dc_chroma_vlc;
static VLC cbpy_vlc;
......@@ -1121,16 +1128,16 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
mv->table_mv_code, 2, 2, 1);
}
init_vlc(&dc_lum_vlc[0], DC_VLC_BITS, 120,
init_vlc(&ff_msmp4_dc_luma_vlc[0], DC_VLC_BITS, 120,
&ff_table0_dc_lum[0][1], 8, 4,
&ff_table0_dc_lum[0][0], 8, 4, 1);
init_vlc(&dc_chroma_vlc[0], DC_VLC_BITS, 120,
init_vlc(&ff_msmp4_dc_chroma_vlc[0], DC_VLC_BITS, 120,
&ff_table0_dc_chroma[0][1], 8, 4,
&ff_table0_dc_chroma[0][0], 8, 4, 1);
init_vlc(&dc_lum_vlc[1], DC_VLC_BITS, 120,
init_vlc(&ff_msmp4_dc_luma_vlc[1], DC_VLC_BITS, 120,
&ff_table1_dc_lum[0][1], 8, 4,
&ff_table1_dc_lum[0][0], 8, 4, 1);
init_vlc(&dc_chroma_vlc[1], DC_VLC_BITS, 120,
init_vlc(&ff_msmp4_dc_chroma_vlc[1], DC_VLC_BITS, 120,
&ff_table1_dc_chroma[0][1], 8, 4,
&ff_table1_dc_chroma[0][0], 8, 4, 1);
......@@ -1160,9 +1167,9 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
&wmv2_inter_table[i][0][0], 8, 4, 1); //FIXME name?
}
init_vlc(&mb_intra_vlc, MB_INTRA_VLC_BITS, 64,
&table_mb_intra[0][1], 4, 2,
&table_mb_intra[0][0], 4, 2, 1);
init_vlc(&ff_msmp4_mb_i_vlc, MB_INTRA_VLC_BITS, 64,
&ff_msmp4_mb_i_table[0][1], 4, 2,
&ff_msmp4_mb_i_table[0][0], 4, 2, 1);
init_vlc(&v1_intra_cbpc_vlc, V1_INTRA_CBPC_VLC_BITS, 8,
intra_MCBPC_bits, 1, 1,
......@@ -1187,6 +1194,8 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
break;
case 5:
s->decode_mb= wmv2_decode_mb;
case 6:
//FIXME + TODO VC9 decode mb
break;
}
......@@ -1588,7 +1597,7 @@ static int msmpeg4v34_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
} else {
set_stat(ST_INTRA_MB);
s->mb_intra = 1;
code = get_vlc2(&s->gb, mb_intra_vlc.table, MB_INTRA_VLC_BITS, 2);
code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
if (code < 0)
return -1;
/* predict coded block pattern */
......@@ -1911,9 +1920,9 @@ static int msmpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr)
level-=256;
}else{ //FIXME optimize use unified tables & index
if (n < 4) {
level = get_vlc2(&s->gb, dc_lum_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
level = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
} else {
level = get_vlc2(&s->gb, dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
level = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
}
if (level < 0){
av_log(s->avctx, AV_LOG_ERROR, "illegal dc vlc\n");
......
libavcodec/msmpeg4data.h
View file @ 0d33db8a
......@@ -4,7 +4,7 @@
*/
/* intra picture macro block coded block pattern */
static const uint16_t table_mb_intra[64][2] = {
const uint16_t ff_msmp4_mb_i_table[64][2] = {
{ 0x1, 1 },{ 0x17, 6 },{ 0x9, 5 },{ 0x5, 5 },
{ 0x6, 5 },{ 0x47, 9 },{ 0x20, 7 },{ 0x10, 7 },
{ 0x2, 5 },{ 0x7c, 9 },{ 0x3a, 7 },{ 0x1d, 7 },
......
libavcodec/vc9.c
View file @ 0d33db8a
This diff is collapsed.
libavcodec/vc9data.h
View file @ 0d33db8a
......@@ -167,23 +167,8 @@ static const uint8_t vc9_4mv_block_pattern_bits[4][16] = {
{ 2, 4, 4, 4, 4, 4, 5, 5, 4, 5, 4, 5, 4, 5, 5, 4}
};
/* I-Picture CBPCY VLC tables */
//same as msmpeg4 table_mb_intra
static const uint16_t vc9_cbpcy_i_codes[64] = {
1, 23, 9, 5, 6, 71, 32, 16,
2, 124, 58, 29, 2, 236, 119, 0,
3, 183, 44, 19, 1, 360, 70, 63,
30, 1810, 181, 66, 34, 453, 286, 135,
6, 3, 30, 28, 18, 904, 68, 112,
31, 574, 57, 142, 1, 454, 182, 69,
20, 575, 125, 24, 7, 455, 134, 25,
21, 475, 2, 70, 13, 1811, 474, 361
};
static const uint8_t vc9_cbpcy_i_bits[64] = {
1, 6, 5, 5, 5, 9, 7, 7, 5, 9, 7, 7, 6, 9, 8, 8,
5, 9, 7, 7, 6, 10, 8, 8, 6, 13, 9, 8, 7, 11, 10, 9,
4, 9, 7, 6, 7, 12, 9, 9, 6, 11, 8, 9, 7, 11, 9, 9,
6, 11, 9, 9, 7, 11, 9, 9, 6, 10, 9, 9, 8, 13, 10, 10
const uint8_t wmv3_dc_scale_table[32]={
0, 4, 6, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21
};
/* P-Picture CBPCY VLC tables */
......
libavcodec/wmv2.c
View file @ 0d33db8a
......@@ -244,7 +244,7 @@ void ff_wmv2_encode_mb(MpegEncContext * s,
if (s->pict_type == I_TYPE) {
set_stat(ST_INTRA_MB);
put_bits(&s->pb,
table_mb_intra[coded_cbp][1], table_mb_intra[coded_cbp][0]);
ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]);
} else {
put_bits(&s->pb,
wmv2_inter_table[w->cbp_table_index][cbp][1],
......@@ -734,7 +734,7 @@ static int wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
cbp = code & 0x3f;
} else {
s->mb_intra = 1;
code = get_vlc2(&s->gb, mb_intra_vlc.table, MB_INTRA_VLC_BITS, 2);
code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
if (code < 0){
av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y);
return -1;
......
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