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Diffstat (limited to 'src/libffmpeg/libavcodec/msmpeg4.c')
-rw-r--r--src/libffmpeg/libavcodec/msmpeg4.c712
1 files changed, 357 insertions, 355 deletions
diff --git a/src/libffmpeg/libavcodec/msmpeg4.c b/src/libffmpeg/libavcodec/msmpeg4.c
index 701a8da92..a3140abb8 100644
--- a/src/libffmpeg/libavcodec/msmpeg4.c
+++ b/src/libffmpeg/libavcodec/msmpeg4.c
@@ -59,6 +59,9 @@
static uint32_t v2_dc_lum_table[512][2];
static uint32_t v2_dc_chroma_table[512][2];
+static inline void msmpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n);
+static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
+ int n, int coded, const uint8_t *scantable);
static int msmpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr);
static int msmpeg4_decode_motion(MpegEncContext * s,
int *mx_ptr, int *my_ptr);
@@ -67,12 +70,13 @@ static void init_h263_dc_for_msmpeg4(void);
static inline void msmpeg4_memsetw(short *tab, int val, int n);
#ifdef CONFIG_ENCODERS
static int get_size_of_code(MpegEncContext * s, RLTable *rl, int last, int run, int level, int intra);
-static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr);
#endif //CONFIG_ENCODERS
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;
@@ -173,6 +177,14 @@ 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:
+/* xine: comment this out as WMV3 support is incomplete */
+#if 0
+ s->y_dc_scale_table= wmv3_dc_scale_table;
+ s->c_dc_scale_table= wmv3_dc_scale_table;
+#endif /* #if 0 */
+ break;
+
}
@@ -237,7 +249,7 @@ void ff_msmpeg4_encode_init(MpegEncContext *s)
init_mv_table(&mv_tables[0]);
init_mv_table(&mv_tables[1]);
for(i=0;i<NB_RL_TABLES;i++)
- init_rl(&rl_table[i]);
+ init_rl(&rl_table[i], 1);
for(i=0; i<NB_RL_TABLES; i++){
int level;
@@ -522,129 +534,6 @@ static inline void handle_slices(MpegEncContext *s){
}
}
-/* Encoding of a block. Very similar to MPEG4 except for a different
- escape coding (same as H263) and more vlc tables.
- */
-static inline void msmpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n)
-{
- int level, run, last, i, j, last_index;
- int last_non_zero, sign, slevel;
- int code, run_diff, dc_pred_dir;
- const RLTable *rl;
- const uint8_t *scantable;
-
- if (s->mb_intra) {
- set_stat(ST_DC);
- msmpeg4_encode_dc(s, block[0], n, &dc_pred_dir);
- i = 1;
- if (n < 4) {
- rl = &rl_table[s->rl_table_index];
- } else {
- rl = &rl_table[3 + s->rl_chroma_table_index];
- }
- run_diff = 0;
- scantable= s->intra_scantable.permutated;
- set_stat(ST_INTRA_AC);
- } else {
- i = 0;
- rl = &rl_table[3 + s->rl_table_index];
- if(s->msmpeg4_version<=2)
- run_diff = 0;
- else
- run_diff = 1;
- scantable= s->inter_scantable.permutated;
- set_stat(ST_INTER_AC);
- }
-
- /* recalculate block_last_index for M$ wmv1 */
- if(s->msmpeg4_version>=4 && s->block_last_index[n]>0){
- for(last_index=63; last_index>=0; last_index--){
- if(block[scantable[last_index]]) break;
- }
- s->block_last_index[n]= last_index;
- }else
- last_index = s->block_last_index[n];
- /* AC coefs */
- last_non_zero = i - 1;
- for (; i <= last_index; i++) {
- j = scantable[i];
- level = block[j];
- if (level) {
- run = i - last_non_zero - 1;
- last = (i == last_index);
- sign = 0;
- slevel = level;
- if (level < 0) {
- sign = 1;
- level = -level;
- }
-
- if(level<=MAX_LEVEL && run<=MAX_RUN){
- s->ac_stats[s->mb_intra][n>3][level][run][last]++;
- }
-#if 0
-else
- s->ac_stats[s->mb_intra][n>3][40][63][0]++; //esc3 like
-#endif
- code = get_rl_index(rl, last, run, level);
- put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
- if (code == rl->n) {
- int level1, run1;
-
- level1 = level - rl->max_level[last][run];
- if (level1 < 1)
- goto esc2;
- code = get_rl_index(rl, last, run, level1);
- if (code == rl->n) {
- esc2:
- put_bits(&s->pb, 1, 0);
- if (level > MAX_LEVEL)
- goto esc3;
- run1 = run - rl->max_run[last][level] - run_diff;
- if (run1 < 0)
- goto esc3;
- code = get_rl_index(rl, last, run1, level);
- if (code == rl->n) {
- esc3:
- /* third escape */
- put_bits(&s->pb, 1, 0);
- put_bits(&s->pb, 1, last);
- if(s->msmpeg4_version>=4){
- if(s->esc3_level_length==0){
- s->esc3_level_length=8;
- s->esc3_run_length= 6;
- if(s->qscale<8)
- put_bits(&s->pb, 6, 3);
- else
- put_bits(&s->pb, 8, 3);
- }
- put_bits(&s->pb, s->esc3_run_length, run);
- put_bits(&s->pb, 1, sign);
- put_bits(&s->pb, s->esc3_level_length, level);
- }else{
- put_bits(&s->pb, 6, run);
- put_bits(&s->pb, 8, slevel & 0xff);
- }
- } else {
- /* second escape */
- put_bits(&s->pb, 1, 1);
- put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
- put_bits(&s->pb, 1, sign);
- }
- } else {
- /* first escape */
- put_bits(&s->pb, 1, 1);
- put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
- put_bits(&s->pb, 1, sign);
- }
- } else {
- put_bits(&s->pb, 1, sign);
- }
- last_non_zero = i;
- }
- }
-}
-
void msmpeg4_encode_mb(MpegEncContext * s,
DCTELEM block[6][64],
int motion_x, int motion_y)
@@ -750,7 +639,7 @@ 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 */
@@ -837,7 +726,7 @@ static inline int msmpeg4_pred_dc(MpegEncContext * s, int n,
necessitate to modify mpegvideo.c. The problem comes from the
fact they decided to store the quantized DC (which would lead
to problems if Q could vary !) */
-#if defined ARCH_X86 && !defined PIC
+#if (defined(ARCH_X86) || defined(ARCH_X86_64)) && !defined PIC
asm volatile(
"movl %3, %%eax \n\t"
"shrl $1, %%eax \n\t"
@@ -1003,15 +892,15 @@ static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr
if (s->dc_table_index == 0) {
if (n < 4) {
- put_bits(&s->pb, table0_dc_lum[code][1], table0_dc_lum[code][0]);
+ put_bits(&s->pb, ff_table0_dc_lum[code][1], ff_table0_dc_lum[code][0]);
} else {
- put_bits(&s->pb, table0_dc_chroma[code][1], table0_dc_chroma[code][0]);
+ put_bits(&s->pb, ff_table0_dc_chroma[code][1], ff_table0_dc_chroma[code][0]);
}
} else {
if (n < 4) {
- put_bits(&s->pb, table1_dc_lum[code][1], table1_dc_lum[code][0]);
+ put_bits(&s->pb, ff_table1_dc_lum[code][1], ff_table1_dc_lum[code][0]);
} else {
- put_bits(&s->pb, table1_dc_chroma[code][1], table1_dc_chroma[code][0]);
+ put_bits(&s->pb, ff_table1_dc_chroma[code][1], ff_table1_dc_chroma[code][0]);
}
}
@@ -1024,14 +913,136 @@ static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr
}
}
+/* Encoding of a block. Very similar to MPEG4 except for a different
+ escape coding (same as H263) and more vlc tables.
+ */
+static inline void msmpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n)
+{
+ int level, run, last, i, j, last_index;
+ int last_non_zero, sign, slevel;
+ int code, run_diff, dc_pred_dir;
+ const RLTable *rl;
+ const uint8_t *scantable;
+
+ if (s->mb_intra) {
+ set_stat(ST_DC);
+ msmpeg4_encode_dc(s, block[0], n, &dc_pred_dir);
+ i = 1;
+ if (n < 4) {
+ rl = &rl_table[s->rl_table_index];
+ } else {
+ rl = &rl_table[3 + s->rl_chroma_table_index];
+ }
+ run_diff = 0;
+ scantable= s->intra_scantable.permutated;
+ set_stat(ST_INTRA_AC);
+ } else {
+ i = 0;
+ rl = &rl_table[3 + s->rl_table_index];
+ if(s->msmpeg4_version<=2)
+ run_diff = 0;
+ else
+ run_diff = 1;
+ scantable= s->inter_scantable.permutated;
+ set_stat(ST_INTER_AC);
+ }
+
+ /* recalculate block_last_index for M$ wmv1 */
+ if(s->msmpeg4_version>=4 && s->block_last_index[n]>0){
+ for(last_index=63; last_index>=0; last_index--){
+ if(block[scantable[last_index]]) break;
+ }
+ s->block_last_index[n]= last_index;
+ }else
+ last_index = s->block_last_index[n];
+ /* AC coefs */
+ last_non_zero = i - 1;
+ for (; i <= last_index; i++) {
+ j = scantable[i];
+ level = block[j];
+ if (level) {
+ run = i - last_non_zero - 1;
+ last = (i == last_index);
+ sign = 0;
+ slevel = level;
+ if (level < 0) {
+ sign = 1;
+ level = -level;
+ }
+
+ if(level<=MAX_LEVEL && run<=MAX_RUN){
+ s->ac_stats[s->mb_intra][n>3][level][run][last]++;
+ }
+#if 0
+else
+ s->ac_stats[s->mb_intra][n>3][40][63][0]++; //esc3 like
+#endif
+ code = get_rl_index(rl, last, run, level);
+ put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
+ if (code == rl->n) {
+ int level1, run1;
+
+ level1 = level - rl->max_level[last][run];
+ if (level1 < 1)
+ goto esc2;
+ code = get_rl_index(rl, last, run, level1);
+ if (code == rl->n) {
+ esc2:
+ put_bits(&s->pb, 1, 0);
+ if (level > MAX_LEVEL)
+ goto esc3;
+ run1 = run - rl->max_run[last][level] - run_diff;
+ if (run1 < 0)
+ goto esc3;
+ code = get_rl_index(rl, last, run1, level);
+ if (code == rl->n) {
+ esc3:
+ /* third escape */
+ put_bits(&s->pb, 1, 0);
+ put_bits(&s->pb, 1, last);
+ if(s->msmpeg4_version>=4){
+ if(s->esc3_level_length==0){
+ s->esc3_level_length=8;
+ s->esc3_run_length= 6;
+ if(s->qscale<8)
+ put_bits(&s->pb, 6, 3);
+ else
+ put_bits(&s->pb, 8, 3);
+ }
+ put_bits(&s->pb, s->esc3_run_length, run);
+ put_bits(&s->pb, 1, sign);
+ put_bits(&s->pb, s->esc3_level_length, level);
+ }else{
+ put_bits(&s->pb, 6, run);
+ put_bits(&s->pb, 8, slevel & 0xff);
+ }
+ } else {
+ /* second escape */
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
+ put_bits(&s->pb, 1, sign);
+ }
+ } else {
+ /* first escape */
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
+ put_bits(&s->pb, 1, sign);
+ }
+ } else {
+ put_bits(&s->pb, 1, sign);
+ }
+ last_non_zero = i;
+ }
+ }
+}
/****************************************/
/* 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;
@@ -1110,69 +1121,69 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
done = 1;
for(i=0;i<NB_RL_TABLES;i++) {
- init_rl(&rl_table[i]);
- init_vlc_rl(&rl_table[i]);
+ init_rl(&rl_table[i], 1);
+ init_vlc_rl(&rl_table[i], 1);
}
for(i=0;i<2;i++) {
mv = &mv_tables[i];
init_vlc(&mv->vlc, MV_VLC_BITS, mv->n + 1,
mv->table_mv_bits, 1, 1,
- mv->table_mv_code, 2, 2);
+ mv->table_mv_code, 2, 2, 1);
}
- init_vlc(&dc_lum_vlc[0], DC_VLC_BITS, 120,
- &table0_dc_lum[0][1], 8, 4,
- &table0_dc_lum[0][0], 8, 4);
- init_vlc(&dc_chroma_vlc[0], DC_VLC_BITS, 120,
- &table0_dc_chroma[0][1], 8, 4,
- &table0_dc_chroma[0][0], 8, 4);
- init_vlc(&dc_lum_vlc[1], DC_VLC_BITS, 120,
- &table1_dc_lum[0][1], 8, 4,
- &table1_dc_lum[0][0], 8, 4);
- init_vlc(&dc_chroma_vlc[1], DC_VLC_BITS, 120,
- &table1_dc_chroma[0][1], 8, 4,
- &table1_dc_chroma[0][0], 8, 4);
+ 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(&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(&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(&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);
init_vlc(&v2_dc_lum_vlc, DC_VLC_BITS, 512,
&v2_dc_lum_table[0][1], 8, 4,
- &v2_dc_lum_table[0][0], 8, 4);
+ &v2_dc_lum_table[0][0], 8, 4, 1);
init_vlc(&v2_dc_chroma_vlc, DC_VLC_BITS, 512,
&v2_dc_chroma_table[0][1], 8, 4,
- &v2_dc_chroma_table[0][0], 8, 4);
+ &v2_dc_chroma_table[0][0], 8, 4, 1);
init_vlc(&cbpy_vlc, CBPY_VLC_BITS, 16,
&cbpy_tab[0][1], 2, 1,
- &cbpy_tab[0][0], 2, 1);
+ &cbpy_tab[0][0], 2, 1, 1);
init_vlc(&v2_intra_cbpc_vlc, V2_INTRA_CBPC_VLC_BITS, 4,
&v2_intra_cbpc[0][1], 2, 1,
- &v2_intra_cbpc[0][0], 2, 1);
+ &v2_intra_cbpc[0][0], 2, 1, 1);
init_vlc(&v2_mb_type_vlc, V2_MB_TYPE_VLC_BITS, 8,
&v2_mb_type[0][1], 2, 1,
- &v2_mb_type[0][0], 2, 1);
+ &v2_mb_type[0][0], 2, 1, 1);
init_vlc(&v2_mv_vlc, V2_MV_VLC_BITS, 33,
&mvtab[0][1], 2, 1,
- &mvtab[0][0], 2, 1);
+ &mvtab[0][0], 2, 1, 1);
for(i=0; i<4; i++){
init_vlc(&mb_non_intra_vlc[i], MB_NON_INTRA_VLC_BITS, 128,
&wmv2_inter_table[i][0][1], 8, 4,
- &wmv2_inter_table[i][0][0], 8, 4); //FIXME name?
+ &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);
+ 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,
- intra_MCBPC_code, 1, 1);
+ intra_MCBPC_code, 1, 1, 1);
init_vlc(&v1_inter_cbpc_vlc, V1_INTER_CBPC_VLC_BITS, 25,
inter_MCBPC_bits, 1, 1,
- inter_MCBPC_code, 1, 1);
+ inter_MCBPC_code, 1, 1, 1);
init_vlc(&inter_intra_vlc, INTER_INTRA_VLC_BITS, 4,
&table_inter_intra[0][1], 2, 1,
- &table_inter_intra[0][0], 2, 1);
+ &table_inter_intra[0][0], 2, 1, 1);
}
switch(s->msmpeg4_version){
@@ -1186,6 +1197,8 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
break;
case 5:
s->decode_mb= wmv2_decode_mb;
+ case 6:
+ //FIXME + TODO VC9 decode mb
break;
}
@@ -1194,16 +1207,6 @@ int ff_msmpeg4_decode_init(MpegEncContext *s)
return 0;
}
-static int decode012(GetBitContext *gb)
-{
- int n;
- n = get_bits1(gb);
- if (n == 0)
- return 0;
- else
- return get_bits1(gb) + 1;
-}
-
int msmpeg4_decode_picture_header(MpegEncContext * s)
{
int code;
@@ -1477,6 +1480,183 @@ static int msmpeg4v2_decode_motion(MpegEncContext * s, int pred, int f_code)
return val;
}
+static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
+{
+ int cbp, code, i;
+
+ if (s->pict_type == P_TYPE) {
+ if (s->use_skip_mb_code) {
+ if (get_bits1(&s->gb)) {
+ /* skip mb */
+ s->mb_intra = 0;
+ for(i=0;i<6;i++)
+ s->block_last_index[i] = -1;
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
+ s->mv[0][0][0] = 0;
+ s->mv[0][0][1] = 0;
+ s->mb_skiped = 1;
+ return 0;
+ }
+ }
+
+ if(s->msmpeg4_version==2)
+ code = get_vlc2(&s->gb, v2_mb_type_vlc.table, V2_MB_TYPE_VLC_BITS, 1);
+ else
+ code = get_vlc2(&s->gb, v1_inter_cbpc_vlc.table, V1_INTER_CBPC_VLC_BITS, 3);
+ if(code<0 || code>7){
+ av_log(s->avctx, AV_LOG_ERROR, "cbpc %d invalid at %d %d\n", code, s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ s->mb_intra = code >>2;
+
+ cbp = code & 0x3;
+ } else {
+ s->mb_intra = 1;
+ if(s->msmpeg4_version==2)
+ cbp= get_vlc2(&s->gb, v2_intra_cbpc_vlc.table, V2_INTRA_CBPC_VLC_BITS, 1);
+ else
+ cbp= get_vlc2(&s->gb, v1_intra_cbpc_vlc.table, V1_INTRA_CBPC_VLC_BITS, 1);
+ if(cbp<0 || cbp>3){
+ av_log(s->avctx, AV_LOG_ERROR, "cbpc %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
+ return -1;
+ }
+ }
+
+ if (!s->mb_intra) {
+ int mx, my, cbpy;
+
+ cbpy= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
+ if(cbpy<0){
+ av_log(s->avctx, AV_LOG_ERROR, "cbpy %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ cbp|= cbpy<<2;
+ if(s->msmpeg4_version==1 || (cbp&3) != 3) cbp^= 0x3C;
+
+ h263_pred_motion(s, 0, 0, &mx, &my);
+ mx= msmpeg4v2_decode_motion(s, mx, 1);
+ my= msmpeg4v2_decode_motion(s, my, 1);
+
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
+ s->mv[0][0][0] = mx;
+ s->mv[0][0][1] = my;
+ } else {
+ if(s->msmpeg4_version==2){
+ s->ac_pred = get_bits1(&s->gb);
+ cbp|= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
+ } else{
+ s->ac_pred = 0;
+ cbp|= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
+ if(s->pict_type==P_TYPE) cbp^=0x3C;
+ }
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
+ {
+ av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int msmpeg4v34_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
+{
+ int cbp, code, i;
+ uint8_t *coded_val;
+ uint32_t * const mb_type_ptr= &s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride ];
+
+ if (s->pict_type == P_TYPE) {
+ set_stat(ST_INTER_MB);
+ if (s->use_skip_mb_code) {
+ if (get_bits1(&s->gb)) {
+ /* skip mb */
+ s->mb_intra = 0;
+ for(i=0;i<6;i++)
+ s->block_last_index[i] = -1;
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
+ s->mv[0][0][0] = 0;
+ s->mv[0][0][1] = 0;
+ s->mb_skiped = 1;
+ *mb_type_ptr = MB_TYPE_SKIP | MB_TYPE_L0 | MB_TYPE_16x16;
+
+ return 0;
+ }
+ }
+
+ code = get_vlc2(&s->gb, mb_non_intra_vlc[DEFAULT_INTER_INDEX].table, MB_NON_INTRA_VLC_BITS, 3);
+ if (code < 0)
+ return -1;
+ //s->mb_intra = (code & 0x40) ? 0 : 1;
+ s->mb_intra = (~code & 0x40) >> 6;
+
+ cbp = code & 0x3f;
+ } else {
+ set_stat(ST_INTRA_MB);
+ s->mb_intra = 1;
+ 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 */
+ cbp = 0;
+ for(i=0;i<6;i++) {
+ int val = ((code >> (5 - i)) & 1);
+ if (i < 4) {
+ int pred = coded_block_pred(s, i, &coded_val);
+ val = val ^ pred;
+ *coded_val = val;
+ }
+ cbp |= val << (5 - i);
+ }
+ }
+
+ if (!s->mb_intra) {
+ int mx, my;
+//printf("P at %d %d\n", s->mb_x, s->mb_y);
+ if(s->per_mb_rl_table && cbp){
+ s->rl_table_index = decode012(&s->gb);
+ s->rl_chroma_table_index = s->rl_table_index;
+ }
+ set_stat(ST_MV);
+ h263_pred_motion(s, 0, 0, &mx, &my);
+ if (msmpeg4_decode_motion(s, &mx, &my) < 0)
+ return -1;
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv_type = MV_TYPE_16X16;
+ s->mv[0][0][0] = mx;
+ s->mv[0][0][1] = my;
+ *mb_type_ptr = MB_TYPE_L0 | MB_TYPE_16x16;
+ } else {
+//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24));
+ set_stat(ST_INTRA_MB);
+ s->ac_pred = get_bits1(&s->gb);
+ *mb_type_ptr = MB_TYPE_INTRA;
+ if(s->inter_intra_pred){
+ s->h263_aic_dir= get_vlc2(&s->gb, inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1);
+// printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
+ }
+ if(s->per_mb_rl_table && cbp){
+ s->rl_table_index = decode012(&s->gb);
+ s->rl_chroma_table_index = s->rl_table_index;
+ }
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
+ {
+ av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
+ return -1;
+ }
+ }
+
+ return 0;
+}
//#define ERROR_DETAILS
static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
int n, int coded, const uint8_t *scan_table)
@@ -1554,7 +1734,7 @@ static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
OPEN_READER(re, &s->gb);
for(;;) {
UPDATE_CACHE(re, &s->gb);
- GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);
+ GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 0);
if (level==0) {
int cache;
cache= GET_CACHE(re, &s->gb);
@@ -1652,7 +1832,7 @@ static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
#else
SKIP_BITS(re, &s->gb, 2);
#endif
- GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);
+ GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
i+= run + rl->max_run[run>>7][level/qmul] + run_diff; //FIXME opt indexing
level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
LAST_SKIP_BITS(re, &s->gb, 1);
@@ -1671,7 +1851,7 @@ static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
#else
SKIP_BITS(re, &s->gb, 1);
#endif
- GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);
+ GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
i+= run;
level = level + rl->max_level[run>>7][(run-1)&63] * qmul;//FIXME opt indexing
level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
@@ -1728,184 +1908,6 @@ static inline int msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
return 0;
}
-static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
-{
- int cbp, code, i;
-
- if (s->pict_type == P_TYPE) {
- if (s->use_skip_mb_code) {
- if (get_bits1(&s->gb)) {
- /* skip mb */
- s->mb_intra = 0;
- for(i=0;i<6;i++)
- s->block_last_index[i] = -1;
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
- s->mv[0][0][0] = 0;
- s->mv[0][0][1] = 0;
- s->mb_skiped = 1;
- return 0;
- }
- }
-
- if(s->msmpeg4_version==2)
- code = get_vlc2(&s->gb, v2_mb_type_vlc.table, V2_MB_TYPE_VLC_BITS, 1);
- else
- code = get_vlc2(&s->gb, v1_inter_cbpc_vlc.table, V1_INTER_CBPC_VLC_BITS, 3);
- if(code<0 || code>7){
- av_log(s->avctx, AV_LOG_ERROR, "cbpc %d invalid at %d %d\n", code, s->mb_x, s->mb_y);
- return -1;
- }
-
- s->mb_intra = code >>2;
-
- cbp = code & 0x3;
- } else {
- s->mb_intra = 1;
- if(s->msmpeg4_version==2)
- cbp= get_vlc2(&s->gb, v2_intra_cbpc_vlc.table, V2_INTRA_CBPC_VLC_BITS, 1);
- else
- cbp= get_vlc2(&s->gb, v1_intra_cbpc_vlc.table, V1_INTRA_CBPC_VLC_BITS, 1);
- if(cbp<0 || cbp>3){
- av_log(s->avctx, AV_LOG_ERROR, "cbpc %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
- return -1;
- }
- }
-
- if (!s->mb_intra) {
- int mx, my, cbpy;
-
- cbpy= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
- if(cbpy<0){
- av_log(s->avctx, AV_LOG_ERROR, "cbpy %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
- return -1;
- }
-
- cbp|= cbpy<<2;
- if(s->msmpeg4_version==1 || (cbp&3) != 3) cbp^= 0x3C;
-
- h263_pred_motion(s, 0, 0, &mx, &my);
- mx= msmpeg4v2_decode_motion(s, mx, 1);
- my= msmpeg4v2_decode_motion(s, my, 1);
-
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
- s->mv[0][0][0] = mx;
- s->mv[0][0][1] = my;
- } else {
- if(s->msmpeg4_version==2){
- s->ac_pred = get_bits1(&s->gb);
- cbp|= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
- } else{
- s->ac_pred = 0;
- cbp|= get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
- if(s->pict_type==P_TYPE) cbp^=0x3C;
- }
- }
-
- for (i = 0; i < 6; i++) {
- if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
- {
- av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
- return -1;
- }
- }
- return 0;
-}
-
-static int msmpeg4v34_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
-{
- int cbp, code, i;
- uint8_t *coded_val;
- uint32_t * const mb_type_ptr= &s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride ];
-
- if (s->pict_type == P_TYPE) {
- set_stat(ST_INTER_MB);
- if (s->use_skip_mb_code) {
- if (get_bits1(&s->gb)) {
- /* skip mb */
- s->mb_intra = 0;
- for(i=0;i<6;i++)
- s->block_last_index[i] = -1;
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
- s->mv[0][0][0] = 0;
- s->mv[0][0][1] = 0;
- s->mb_skiped = 1;
- *mb_type_ptr = MB_TYPE_SKIP | MB_TYPE_L0 | MB_TYPE_16x16;
-
- return 0;
- }
- }
-
- code = get_vlc2(&s->gb, mb_non_intra_vlc[DEFAULT_INTER_INDEX].table, MB_NON_INTRA_VLC_BITS, 3);
- if (code < 0)
- return -1;
- //s->mb_intra = (code & 0x40) ? 0 : 1;
- s->mb_intra = (~code & 0x40) >> 6;
-
- cbp = code & 0x3f;
- } else {
- set_stat(ST_INTRA_MB);
- s->mb_intra = 1;
- code = get_vlc2(&s->gb, mb_intra_vlc.table, MB_INTRA_VLC_BITS, 2);
- if (code < 0)
- return -1;
- /* predict coded block pattern */
- cbp = 0;
- for(i=0;i<6;i++) {
- int val = ((code >> (5 - i)) & 1);
- if (i < 4) {
- int pred = coded_block_pred(s, i, &coded_val);
- val = val ^ pred;
- *coded_val = val;
- }
- cbp |= val << (5 - i);
- }
- }
-
- if (!s->mb_intra) {
- int mx, my;
-//printf("P at %d %d\n", s->mb_x, s->mb_y);
- if(s->per_mb_rl_table && cbp){
- s->rl_table_index = decode012(&s->gb);
- s->rl_chroma_table_index = s->rl_table_index;
- }
- set_stat(ST_MV);
- h263_pred_motion(s, 0, 0, &mx, &my);
- if (msmpeg4_decode_motion(s, &mx, &my) < 0)
- return -1;
- s->mv_dir = MV_DIR_FORWARD;
- s->mv_type = MV_TYPE_16X16;
- s->mv[0][0][0] = mx;
- s->mv[0][0][1] = my;
- *mb_type_ptr = MB_TYPE_L0 | MB_TYPE_16x16;
- } else {
-//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24));
- set_stat(ST_INTRA_MB);
- s->ac_pred = get_bits1(&s->gb);
- *mb_type_ptr = MB_TYPE_INTRA;
- if(s->inter_intra_pred){
- s->h263_aic_dir= get_vlc2(&s->gb, inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1);
-// printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
- }
- if(s->per_mb_rl_table && cbp){
- s->rl_table_index = decode012(&s->gb);
- s->rl_chroma_table_index = s->rl_table_index;
- }
- }
-
- for (i = 0; i < 6; i++) {
- if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
- {
- av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
- return -1;
- }
- }
-
- return 0;
-}
-
static int msmpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr)
{
int level, pred;
@@ -1921,9 +1923,9 @@ 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");
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 21:25:54 +0000