/*
- * MSMPEG4 backend for ffmpeg encoder and decoder
+ * MSMPEG4 backend for encoder and decoder
* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file libavcodec/msmpeg4.c
- * MSMPEG4 backend for ffmpeg encoder and decoder.
+ * @file
+ * MSMPEG4 backend for encoder and decoder
*/
#include "avcodec.h"
static uint32_t v2_dc_chroma_table[512][2];
/* vc1 externs */
-extern const uint8_t wmv3_dc_scale_table[32];
-
-#ifdef DEBUG
-int frame_count = 0;
-#endif
+extern const uint8_t ff_wmv3_dc_scale_table[32];
#include "msmpeg4data.h"
break;
case 3:
if(s->workaround_bugs){
- s->y_dc_scale_table= old_ff_y_dc_scale_table;
- s->c_dc_scale_table= wmv1_c_dc_scale_table;
+ s->y_dc_scale_table= ff_old_ff_y_dc_scale_table;
+ s->c_dc_scale_table= ff_wmv1_c_dc_scale_table;
} else{
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table;
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
break;
case 4:
case 5:
- s->y_dc_scale_table= wmv1_y_dc_scale_table;
- s->c_dc_scale_table= wmv1_c_dc_scale_table;
+ s->y_dc_scale_table= ff_wmv1_y_dc_scale_table;
+ s->c_dc_scale_table= ff_wmv1_c_dc_scale_table;
break;
#if CONFIG_VC1_DECODER
case 6:
- s->y_dc_scale_table= wmv3_dc_scale_table;
- s->c_dc_scale_table= wmv3_dc_scale_table;
+ s->y_dc_scale_table= ff_wmv3_dc_scale_table;
+ s->c_dc_scale_table= ff_wmv3_dc_scale_table;
break;
#endif
if(s->msmpeg4_version>=4){
- ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , wmv1_scantable[1]);
- ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, wmv1_scantable[2]);
- ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, wmv1_scantable[3]);
- ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , wmv1_scantable[0]);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_wmv1_scantable[1]);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_wmv1_scantable[2]);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_wmv1_scantable[3]);
+ ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_wmv1_scantable[0]);
}
//Note the default tables are set in common_init in mpegvideo.c
if (!init_done) {
/* init various encoding tables */
init_done = 1;
- init_mv_table(&mv_tables[0]);
- init_mv_table(&mv_tables[1]);
+ init_mv_table(&ff_mv_tables[0]);
+ init_mv_table(&ff_mv_tables[1]);
for(i=0;i<NB_RL_TABLES;i++)
- init_rl(&rl_table[i], static_rl_table_store[i]);
+ ff_init_rl(&ff_rl_table[i], static_rl_table_store[i]);
for(i=0; i<NB_RL_TABLES; i++){
int level;
- for(level=0; level<=MAX_LEVEL; level++){
+ for (level = 1; level <= MAX_LEVEL; level++) {
int run;
for(run=0; run<=MAX_RUN; run++){
int last;
for(last=0; last<2; last++){
- rl_length[i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level, 0);
+ rl_length[i][level][run][last]= get_size_of_code(s, &ff_rl_table[ i], last, run, level, 0);
}
}
}
int intra_luma_count = s->ac_stats[1][0][level][run][last];
int intra_chroma_count= s->ac_stats[1][1][level][run][last];
- if(s->pict_type==FF_I_TYPE){
+ if(s->pict_type==AV_PICTURE_TYPE_I){
size += intra_luma_count *rl_length[i ][level][run][last];
chroma_size+= intra_chroma_count*rl_length[i+3][level][run][last];
}else{
// printf("type:%d, best:%d, qp:%d, var:%d, mcvar:%d, size:%d //\n",
// s->pict_type, best, s->qscale, s->mb_var_sum, s->mc_mb_var_sum, best_size);
- if(s->pict_type==FF_P_TYPE) chroma_best= best;
+ if(s->pict_type==AV_PICTURE_TYPE_P) chroma_best= best;
memset(s->ac_stats, 0, sizeof(int)*(MAX_LEVEL+1)*(MAX_RUN+1)*2*2*2);
if(s->pict_type != s->last_non_b_pict_type){
s->rl_table_index= 2;
- if(s->pict_type==FF_I_TYPE)
+ if(s->pict_type==AV_PICTURE_TYPE_I)
s->rl_chroma_table_index= 1;
else
s->rl_chroma_table_index= 2;
}
/* write MSMPEG4 compatible frame header */
-void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
+void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
{
find_best_tables(s);
- align_put_bits(&s->pb);
+ avpriv_align_put_bits(&s->pb);
put_bits(&s->pb, 2, s->pict_type - 1);
put_bits(&s->pb, 5, s->qscale);
s->use_skip_mb_code = 1; /* only if P frame */
s->per_mb_rl_table = 0;
if(s->msmpeg4_version==4)
- s->inter_intra_pred= (s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE && s->pict_type==FF_P_TYPE);
+ s->inter_intra_pred= (s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE && s->pict_type==AV_PICTURE_TYPE_P);
//printf("%d %d %d %d %d\n", s->pict_type, s->bit_rate, s->inter_intra_pred, s->width, s->height);
- if (s->pict_type == FF_I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
s->slice_height= s->mb_height/1;
put_bits(&s->pb, 5, 0x16 + s->mb_height/s->slice_height);
if(s->msmpeg4_version==4){
- msmpeg4_encode_ext_header(s);
+ ff_msmpeg4_encode_ext_header(s);
if(s->bit_rate>MBAC_BITRATE)
put_bits(&s->pb, 1, s->per_mb_rl_table);
}
s->esc3_run_length= 0;
}
-void msmpeg4_encode_ext_header(MpegEncContext * s)
+void ff_msmpeg4_encode_ext_header(MpegEncContext * s)
{
put_bits(&s->pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29
(unsigned)my >= 64)
av_log(s->avctx, AV_LOG_ERROR, "error mx=%d my=%d\n", mx, my);
#endif
- mv = &mv_tables[s->mv_table_index];
+ mv = &ff_mv_tables[s->mv_table_index];
code = mv->table_mv_index[(mx << 6) | my];
put_bits(&s->pb,
if (val == 0) {
/* zero vector */
code = 0;
- put_bits(&s->pb, mvtab[code][1], mvtab[code][0]);
+ put_bits(&s->pb, ff_mvtab[code][1], ff_mvtab[code][0]);
} else {
bit_size = s->f_code - 1;
range = 1 << bit_size;
code = (val >> bit_size) + 1;
bits = val & (range - 1);
- put_bits(&s->pb, mvtab[code][1] + 1, (mvtab[code][0] << 1) | sign);
+ put_bits(&s->pb, ff_mvtab[code][1] + 1, (ff_mvtab[code][0] << 1) | sign);
if (bit_size > 0) {
put_bits(&s->pb, bit_size, bits);
}
}
}
-void msmpeg4_encode_mb(MpegEncContext * s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
+void ff_msmpeg4_encode_mb(MpegEncContext * s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y)
{
int cbp, coded_cbp, i;
int pred_x, pred_y;
if(s->msmpeg4_version<=2){
put_bits(&s->pb,
- v2_mb_type[cbp&3][1],
- v2_mb_type[cbp&3][0]);
+ ff_v2_mb_type[cbp&3][1],
+ ff_v2_mb_type[cbp&3][0]);
if((cbp&3) != 3) coded_cbp= cbp ^ 0x3C;
else coded_cbp= cbp;
s->misc_bits += get_bits_diff(s);
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
msmpeg4v2_encode_motion(s, motion_x - pred_x);
msmpeg4v2_encode_motion(s, motion_y - pred_y);
}else{
put_bits(&s->pb,
- table_mb_non_intra[cbp + 64][1],
- table_mb_non_intra[cbp + 64][0]);
+ ff_table_mb_non_intra[cbp + 64][1],
+ ff_table_mb_non_intra[cbp + 64][0]);
s->misc_bits += get_bits_diff(s);
/* motion vector */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
ff_msmpeg4_encode_motion(s, motion_x - pred_x,
motion_y - pred_y);
}
}
coded_cbp |= val << (5 - i);
}
-#if 0
- if (coded_cbp)
- printf("cbp=%x %x\n", cbp, coded_cbp);
-#endif
if(s->msmpeg4_version<=2){
- if (s->pict_type == FF_I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
put_bits(&s->pb,
- v2_intra_cbpc[cbp&3][1], v2_intra_cbpc[cbp&3][0]);
+ ff_v2_intra_cbpc[cbp&3][1], ff_v2_intra_cbpc[cbp&3][0]);
} else {
if (s->use_skip_mb_code)
put_bits(&s->pb, 1, 0); /* mb coded */
put_bits(&s->pb,
- v2_mb_type[(cbp&3) + 4][1],
- v2_mb_type[(cbp&3) + 4][0]);
+ ff_v2_mb_type[(cbp&3) + 4][1],
+ ff_v2_mb_type[(cbp&3) + 4][0]);
}
put_bits(&s->pb, 1, 0); /* no AC prediction yet */
put_bits(&s->pb,
ff_h263_cbpy_tab[cbp>>2][1],
ff_h263_cbpy_tab[cbp>>2][0]);
}else{
- if (s->pict_type == FF_I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
put_bits(&s->pb,
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 */
put_bits(&s->pb,
- table_mb_non_intra[cbp][1],
- table_mb_non_intra[cbp][0]);
+ ff_table_mb_non_intra[cbp][1],
+ ff_table_mb_non_intra[cbp][0]);
}
put_bits(&s->pb, 1, 0); /* no AC prediction yet */
if(s->inter_intra_pred){
s->h263_aic_dir=0;
- put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]);
+ put_bits(&s->pb, ff_table_inter_intra[s->h263_aic_dir][1], ff_table_inter_intra[s->h263_aic_dir][0]);
}
}
s->misc_bits += get_bits_diff(s);
}else{
if(n<4){
wrap= s->linesize;
- dest= s->current_picture.data[0] + (((n>>1) + 2*s->mb_y) * 8* wrap ) + ((n&1) + 2*s->mb_x) * 8;
+ dest= s->current_picture.f.data[0] + (((n >> 1) + 2*s->mb_y) * 8* wrap ) + ((n & 1) + 2*s->mb_x) * 8;
}else{
wrap= s->uvlinesize;
- dest= s->current_picture.data[n-3] + (s->mb_y * 8 * wrap) + s->mb_x * 8;
+ dest= s->current_picture.f.data[n - 3] + (s->mb_y * 8 * wrap) + s->mb_x * 8;
}
if(s->mb_x==0) a= (1024 + (scale>>1))/scale;
else a= get_dc(dest-8, wrap, scale*8);
int pred, extquant;
int extrabits = 0;
- if(s->msmpeg4_version==1){
- int32_t *dc_val;
- pred = msmpeg4v1_pred_dc(s, n, &dc_val);
-
- /* update predictor */
- *dc_val= level;
- }else{
- int16_t *dc_val;
- pred = msmpeg4_pred_dc(s, n, &dc_val, dir_ptr);
+ int16_t *dc_val;
+ pred = msmpeg4_pred_dc(s, n, &dc_val, dir_ptr);
- /* update predictor */
- if (n < 4) {
- *dc_val = level * s->y_dc_scale;
- } else {
- *dc_val = level * s->c_dc_scale;
- }
+ /* update predictor */
+ if (n < 4) {
+ *dc_val = level * s->y_dc_scale;
+ } else {
+ *dc_val = level * s->c_dc_scale;
}
/* do the prediction */
msmpeg4_encode_dc(s, block[0], n, &dc_pred_dir);
i = 1;
if (n < 4) {
- rl = &rl_table[s->rl_table_index];
+ rl = &ff_rl_table[s->rl_table_index];
} else {
- rl = &rl_table[3 + s->rl_chroma_table_index];
+ rl = &ff_rl_table[3 + s->rl_chroma_table_index];
}
run_diff = s->msmpeg4_version>=4;
scantable= s->intra_scantable.permutated;
} else {
i = 0;
- rl = &rl_table[3 + s->rl_table_index];
+ rl = &ff_rl_table[3 + s->rl_table_index];
if(s->msmpeg4_version<=2)
run_diff = 0;
else
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
+
+ s->ac_stats[s->mb_intra][n > 3][40][63][0]++; //esc3 like
+
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 cbp, code, i;
- if (s->pict_type == FF_P_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_P) {
if (s->use_skip_mb_code) {
if (get_bits1(&s->gb)) {
/* skip mb */
cbp|= cbpy<<2;
if(s->msmpeg4_version==1 || (cbp&3) != 3) cbp^= 0x3C;
- h263_pred_motion(s, 0, 0, &mx, &my);
+ ff_h263_pred_motion(s, 0, 0, &mx, &my);
mx= msmpeg4v2_decode_motion(s, mx, 1);
my= msmpeg4v2_decode_motion(s, my, 1);
} else{
s->ac_pred = 0;
cbp|= get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1)<<2; //FIXME check errors
- if(s->pict_type==FF_P_TYPE) cbp^=0x3C;
+ if(s->pict_type==AV_PICTURE_TYPE_P) cbp^=0x3C;
}
}
{
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 ];
+ uint32_t * const mb_type_ptr = &s->current_picture.f.mb_type[s->mb_x + s->mb_y*s->mb_stride];
- if (s->pict_type == FF_P_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_P) {
if (s->use_skip_mb_code) {
if (get_bits1(&s->gb)) {
/* skip mb */
s->rl_table_index = decode012(&s->gb);
s->rl_chroma_table_index = s->rl_table_index;
}
- h263_pred_motion(s, 0, 0, &mx, &my);
+ ff_h263_pred_motion(s, 0, 0, &mx, &my);
if (ff_msmpeg4_decode_motion(s, &mx, &my) < 0)
return -1;
s->mv_dir = MV_DIR_FORWARD;
int i;
MVTable *mv;
- ff_h263_decode_init(avctx);
+ if (ff_h263_decode_init(avctx) < 0)
+ return -1;
common_init(s);
done = 1;
for(i=0;i<NB_RL_TABLES;i++) {
- init_rl(&rl_table[i], static_rl_table_store[i]);
+ ff_init_rl(&ff_rl_table[i], static_rl_table_store[i]);
}
- INIT_VLC_RL(rl_table[0], 642);
- INIT_VLC_RL(rl_table[1], 1104);
- INIT_VLC_RL(rl_table[2], 554);
- INIT_VLC_RL(rl_table[3], 940);
- INIT_VLC_RL(rl_table[4], 962);
- INIT_VLC_RL(rl_table[5], 554);
-
- mv = &mv_tables[0];
+ INIT_VLC_RL(ff_rl_table[0], 642);
+ INIT_VLC_RL(ff_rl_table[1], 1104);
+ INIT_VLC_RL(ff_rl_table[2], 554);
+ INIT_VLC_RL(ff_rl_table[3], 940);
+ INIT_VLC_RL(ff_rl_table[4], 962);
+ INIT_VLC_RL(ff_rl_table[5], 554);
+
+ mv = &ff_mv_tables[0];
INIT_VLC_STATIC(&mv->vlc, MV_VLC_BITS, mv->n + 1,
mv->table_mv_bits, 1, 1,
mv->table_mv_code, 2, 2, 3714);
- mv = &mv_tables[1];
+ mv = &ff_mv_tables[1];
INIT_VLC_STATIC(&mv->vlc, MV_VLC_BITS, mv->n + 1,
mv->table_mv_bits, 1, 1,
mv->table_mv_code, 2, 2, 2694);
&v2_dc_chroma_table[0][0], 8, 4, 1506);
INIT_VLC_STATIC(&v2_intra_cbpc_vlc, V2_INTRA_CBPC_VLC_BITS, 4,
- &v2_intra_cbpc[0][1], 2, 1,
- &v2_intra_cbpc[0][0], 2, 1, 8);
+ &ff_v2_intra_cbpc[0][1], 2, 1,
+ &ff_v2_intra_cbpc[0][0], 2, 1, 8);
INIT_VLC_STATIC(&v2_mb_type_vlc, V2_MB_TYPE_VLC_BITS, 8,
- &v2_mb_type[0][1], 2, 1,
- &v2_mb_type[0][0], 2, 1, 128);
+ &ff_v2_mb_type[0][1], 2, 1,
+ &ff_v2_mb_type[0][0], 2, 1, 128);
INIT_VLC_STATIC(&v2_mv_vlc, V2_MV_VLC_BITS, 33,
- &mvtab[0][1], 2, 1,
- &mvtab[0][0], 2, 1, 538);
+ &ff_mvtab[0][1], 2, 1,
+ &ff_mvtab[0][0], 2, 1, 538);
INIT_VLC_STATIC(&ff_mb_non_intra_vlc[0], MB_NON_INTRA_VLC_BITS, 128,
- &wmv2_inter_table[0][0][1], 8, 4,
- &wmv2_inter_table[0][0][0], 8, 4, 1636);
+ &ff_wmv2_inter_table[0][0][1], 8, 4,
+ &ff_wmv2_inter_table[0][0][0], 8, 4, 1636);
INIT_VLC_STATIC(&ff_mb_non_intra_vlc[1], MB_NON_INTRA_VLC_BITS, 128,
- &wmv2_inter_table[1][0][1], 8, 4,
- &wmv2_inter_table[1][0][0], 8, 4, 2648);
+ &ff_wmv2_inter_table[1][0][1], 8, 4,
+ &ff_wmv2_inter_table[1][0][0], 8, 4, 2648);
INIT_VLC_STATIC(&ff_mb_non_intra_vlc[2], MB_NON_INTRA_VLC_BITS, 128,
- &wmv2_inter_table[2][0][1], 8, 4,
- &wmv2_inter_table[2][0][0], 8, 4, 1532);
+ &ff_wmv2_inter_table[2][0][1], 8, 4,
+ &ff_wmv2_inter_table[2][0][0], 8, 4, 1532);
INIT_VLC_STATIC(&ff_mb_non_intra_vlc[3], MB_NON_INTRA_VLC_BITS, 128,
- &wmv2_inter_table[3][0][1], 8, 4,
- &wmv2_inter_table[3][0][0], 8, 4, 2488);
+ &ff_wmv2_inter_table[3][0][1], 8, 4,
+ &ff_wmv2_inter_table[3][0][0], 8, 4, 2488);
INIT_VLC_STATIC(&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, 536);
INIT_VLC_STATIC(&ff_inter_intra_vlc, INTER_INTRA_VLC_BITS, 4,
- &table_inter_intra[0][1], 2, 1,
- &table_inter_intra[0][0], 2, 1, 8);
+ &ff_table_inter_intra[0][1], 2, 1,
+ &ff_table_inter_intra[0][0], 2, 1, 8);
}
switch(s->msmpeg4_version){
return 0;
}
-int msmpeg4_decode_picture_header(MpegEncContext * s)
+int ff_msmpeg4_decode_picture_header(MpegEncContext * s)
{
int code;
-#if 0
-{
-int i;
-for(i=0; i<s->gb.size_in_bits; i++)
- av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&s->gb));
-// get_bits1(&s->gb);
-av_log(s->avctx, AV_LOG_DEBUG, "END\n");
-return -1;
-}
-#endif
-
if(s->msmpeg4_version==1){
- int start_code;
- start_code = (get_bits(&s->gb, 16)<<16) | get_bits(&s->gb, 16);
+ int start_code = get_bits_long(&s->gb, 32);
if(start_code!=0x00000100){
av_log(s->avctx, AV_LOG_ERROR, "invalid startcode\n");
return -1;
}
s->pict_type = get_bits(&s->gb, 2) + 1;
- if (s->pict_type != FF_I_TYPE &&
- s->pict_type != FF_P_TYPE){
+ if (s->pict_type != AV_PICTURE_TYPE_I &&
+ s->pict_type != AV_PICTURE_TYPE_P){
av_log(s->avctx, AV_LOG_ERROR, "invalid picture type\n");
return -1;
}
#if 0
{
static int had_i=0;
- if(s->pict_type == FF_I_TYPE) had_i=1;
+ if(s->pict_type == AV_PICTURE_TYPE_I) had_i=1;
if(!had_i) return -1;
}
#endif
return -1;
}
- if (s->pict_type == FF_I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
code = get_bits(&s->gb, 5);
if(s->msmpeg4_version==1){
if(code==0 || code>s->mb_height){
s->dc_table_index = get_bits1(&s->gb);
break;
case 4:
- msmpeg4_decode_ext_header(s, (2+5+5+17+7)/8);
+ ff_msmpeg4_decode_ext_header(s, (2+5+5+17+7)/8);
if(s->bit_rate > MBAC_BITRATE) s->per_mb_rl_table= get_bits1(&s->gb);
else s->per_mb_rl_table= 0;
return 0;
}
-int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size)
+int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size)
{
int left= buf_size*8 - get_bits_count(&s->gb);
int length= s->msmpeg4_version>=3 ? 17 : 16;
/* the alt_bitstream reader could read over the end so we need to check it */
if(left>=length && left<length+8)
{
- int fps;
-
- fps= get_bits(&s->gb, 5);
+ skip_bits(&s->gb, 5); /* fps */
s->bit_rate= get_bits(&s->gb, 11)*1024;
if(s->msmpeg4_version>=3)
s->flipflop_rounding= get_bits1(&s->gb);
else return -1;
}
if (n < 4) {
- rl = &rl_table[s->rl_table_index];
+ rl = &ff_rl_table[s->rl_table_index];
if(level > 256*s->y_dc_scale){
av_log(s->avctx, AV_LOG_ERROR, "dc overflow+ L qscale: %d//\n", s->qscale);
if(!s->inter_intra_pred) return -1;
}
} else {
- rl = &rl_table[3 + s->rl_chroma_table_index];
+ rl = &ff_rl_table[3 + s->rl_chroma_table_index];
if(level > 256*s->c_dc_scale){
av_log(s->avctx, AV_LOG_ERROR, "dc overflow+ C qscale: %d//\n", s->qscale);
if(!s->inter_intra_pred) return -1;
qmul = s->qscale << 1;
qadd = (s->qscale - 1) | 1;
i = -1;
- rl = &rl_table[3 + s->rl_table_index];
+ rl = &ff_rl_table[3 + s->rl_table_index];
if(s->msmpeg4_version==2)
run_diff = 0;
if(s->msmpeg4_version<=3){
last= SHOW_UBITS(re, &s->gb, 1); SKIP_CACHE(re, &s->gb, 1);
run= SHOW_UBITS(re, &s->gb, 6); SKIP_CACHE(re, &s->gb, 6);
- level= SHOW_SBITS(re, &s->gb, 8); LAST_SKIP_CACHE(re, &s->gb, 8);
+ level= SHOW_SBITS(re, &s->gb, 8);
SKIP_COUNTER(re, &s->gb, 1+6+8);
}else{
int sign;
#endif
} else {
/* second escape */
-#if MIN_CACHE_BITS < 23
- LAST_SKIP_BITS(re, &s->gb, 2);
- UPDATE_CACHE(re, &s->gb);
-#else
SKIP_BITS(re, &s->gb, 2);
-#endif
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);
}
} else {
/* first escape */
-#if MIN_CACHE_BITS < 22
- LAST_SKIP_BITS(re, &s->gb, 1);
- UPDATE_CACHE(re, &s->gb);
-#else
SKIP_BITS(re, &s->gb, 1);
-#endif
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
i-= 192;
if(i&(~63)){
const int left= get_bits_left(&s->gb);
- if(((i+192 == 64 && level/qmul==-1) || s->error_recognition<=1) && left>=0){
+ if(((i+192 == 64 && level/qmul==-1) || !(s->err_recognition&AV_EF_BITSTREAM)) && left>=0){
av_log(s->avctx, AV_LOG_ERROR, "ignoring overflow at %d %d\n", s->mb_x, s->mb_y);
break;
}else{
}
not_coded:
if (s->mb_intra) {
- mpeg4_pred_ac(s, block, n, dc_pred_dir);
+ ff_mpeg4_pred_ac(s, block, n, dc_pred_dir);
if (s->ac_pred) {
i = 63; /* XXX: not optimal */
}
MVTable *mv;
int code, mx, my;
- mv = &mv_tables[s->mv_table_index];
+ mv = &ff_mv_tables[s->mv_table_index];
code = get_vlc2(&s->gb, mv->vlc.table, MV_VLC_BITS, 2);
if (code < 0){
return 0;
}
-AVCodec msmpeg4v1_decoder = {
- "msmpeg4v1",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V1,
- sizeof(MpegEncContext),
- ff_msmpeg4_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+AVCodec ff_msmpeg4v1_decoder = {
+ .name = "msmpeg4v1",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_MSMPEG4V1,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = ff_msmpeg4_decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+ .max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
.pix_fmts= ff_pixfmt_list_420,
};
-AVCodec msmpeg4v2_decoder = {
- "msmpeg4v2",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V2,
- sizeof(MpegEncContext),
- ff_msmpeg4_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+AVCodec ff_msmpeg4v2_decoder = {
+ .name = "msmpeg4v2",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_MSMPEG4V2,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = ff_msmpeg4_decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+ .max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
.pix_fmts= ff_pixfmt_list_420,
};
-AVCodec msmpeg4v3_decoder = {
- "msmpeg4",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_MSMPEG4V3,
- sizeof(MpegEncContext),
- ff_msmpeg4_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+AVCodec ff_msmpeg4v3_decoder = {
+ .name = "msmpeg4",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_MSMPEG4V3,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = ff_msmpeg4_decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+ .max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
.pix_fmts= ff_pixfmt_list_420,
};
-AVCodec wmv1_decoder = {
- "wmv1",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_WMV1,
- sizeof(MpegEncContext),
- ff_msmpeg4_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+AVCodec ff_wmv1_decoder = {
+ .name = "wmv1",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_WMV1,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = ff_msmpeg4_decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+ .max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
.pix_fmts= ff_pixfmt_list_420,
};