/*
* MSMPEG4 backend for ffmpeg encoder and decoder
* Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+/**
+ * @file msmpeg4.c
+ * MSMPEG4 backend for ffmpeg encoder and decoder.
+ */
+
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
-//#define PRINT_MB
+#include "msmpeg4.h"
/*
- * You can also call this codec : MPEG4 with a twist !
+ * You can also call this codec : MPEG4 with a twist !
*
- * TODO:
+ * TODO:
* - (encoding) select best mv table (two choices)
- * - (encoding) select best vlc/dc table
+ * - (encoding) select best vlc/dc table
*/
//#define DEBUG
#define DC_VLC_BITS 9
#define CBPY_VLC_BITS 6
-#define INTER_INTRA_VLC_BITS 3
#define V1_INTRA_CBPC_VLC_BITS 6
#define V1_INTER_CBPC_VLC_BITS 6
#define V2_INTRA_CBPC_VLC_BITS 3
#define MV_VLC_BITS 9
#define V2_MV_VLC_BITS 9
#define TEX_VLC_BITS 9
-#define MB_NON_INTRA_VLC_BITS 9
-#define MB_INTRA_VLC_BITS 9
#define II_BITRATE 128*1024
#define MBAC_BITRATE 50*1024
-static UINT32 v2_dc_lum_table[512][2];
-static UINT32 v2_dc_chroma_table[512][2];
+#define DEFAULT_INTER_INDEX 3
+
+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);
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);
-static void msmpeg4v2_encode_motion(MpegEncContext * s, int val);
static void init_h263_dc_for_msmpeg4(void);
static inline void msmpeg4_memsetw(short *tab, int val, int n);
+#ifdef CONFIG_ENCODERS
+static void msmpeg4v2_encode_motion(MpegEncContext * s, int val);
static int get_size_of_code(MpegEncContext * s, RLTable *rl, int last, int run, int level, int intra);
+#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]);
-extern UINT32 inverse[256];
-
+/* vc1 externs */
+extern const uint8_t wmv3_dc_scale_table[32];
#ifdef DEBUG
int intra_count = 0;
#include "msmpeg4data.h"
-static int rl_length[2][NB_RL_TABLES][MAX_LEVEL+1][MAX_RUN+1][2];
-
-#ifdef STATS
-
-const char *st_names[ST_NB] = {
- "unknown",
- "dc",
- "intra_ac",
- "inter_ac",
- "intra_mb",
- "inter_mb",
- "mv",
-};
-
-int st_current_index = 0;
-unsigned int st_bit_counts[ST_NB];
-unsigned int st_out_bit_counts[ST_NB];
-
-#define set_stat(var) st_current_index = var;
-
-void print_stats(void)
-{
- unsigned int total;
- int i;
-
- printf("Input:\n");
- total = 0;
- for(i=0;i<ST_NB;i++)
- total += st_bit_counts[i];
- if (total == 0)
- total = 1;
- for(i=0;i<ST_NB;i++) {
- printf("%-10s : %10.1f %5.1f%%\n",
- st_names[i],
- (double)st_bit_counts[i] / 8.0,
- (double)st_bit_counts[i] * 100.0 / total);
- }
- printf("%-10s : %10.1f %5.1f%%\n",
- "total",
- (double)total / 8.0,
- 100.0);
-
- printf("Output:\n");
- total = 0;
- for(i=0;i<ST_NB;i++)
- total += st_out_bit_counts[i];
- if (total == 0)
- total = 1;
- for(i=0;i<ST_NB;i++) {
- printf("%-10s : %10.1f %5.1f%%\n",
- st_names[i],
- (double)st_out_bit_counts[i] / 8.0,
- (double)st_out_bit_counts[i] * 100.0 / total);
- }
- printf("%-10s : %10.1f %5.1f%%\n",
- "total",
- (double)total / 8.0,
- 100.0);
-}
+#ifdef CONFIG_ENCODERS //strangely gcc includes this even if it is not references
+static uint8_t rl_length[NB_RL_TABLES][MAX_LEVEL+1][MAX_RUN+1][2];
+#endif //CONFIG_ENCODERS
-#else
-
-#define set_stat(var)
-
-#endif
+static uint8_t static_rl_table_store[NB_RL_TABLES][2][2*MAX_RUN + MAX_LEVEL + 3];
static void common_init(MpegEncContext * s)
{
- static int inited=0;
-
+ static int initialized=0;
+
switch(s->msmpeg4_version){
case 1:
case 2:
}
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;
break;
+#if defined(CONFIG_WMV3_DECODER)||defined(CONFIG_VC1_DECODER)
+ case 6:
+ s->y_dc_scale_table= wmv3_dc_scale_table;
+ s->c_dc_scale_table= wmv3_dc_scale_table;
+ break;
+#endif
+
}
-
- if(s->msmpeg4_version==4){
- ff_init_scantable(s, &s->intra_scantable , wmv1_scantable[1]);
- ff_init_scantable(s, &s->intra_h_scantable, wmv1_scantable[2]);
- ff_init_scantable(s, &s->intra_v_scantable, wmv1_scantable[3]);
- ff_init_scantable(s, &s->inter_scantable , wmv1_scantable[0]);
+
+ 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]);
}
//Note the default tables are set in common_init in mpegvideo.c
-
- if(!inited){
- inited=1;
+
+ if(!initialized){
+ initialized=1;
init_h263_dc_for_msmpeg4();
}
}
+#ifdef CONFIG_ENCODERS
+
/* build the table which associate a (x,y) motion vector to a vlc */
static void init_mv_table(MVTable *tab)
{
int i, x, y;
- tab->table_mv_index = av_malloc(sizeof(UINT16) * 4096);
+ tab->table_mv_index = av_malloc(sizeof(uint16_t) * 4096);
/* mark all entries as not used */
for(i=0;i<4096;i++)
tab->table_mv_index[i] = tab->n;
-
+
for(i=0;i<tab->n;i++) {
x = tab->table_mvx[i];
y = tab->table_mvy[i];
}
}
-static void code012(PutBitContext *pb, int n)
+void ff_msmpeg4_code012(PutBitContext *pb, int n)
{
if (n == 0) {
put_bits(pb, 1, 0);
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], static_rl_table_store[i]);
for(i=0; i<NB_RL_TABLES; i++){
int level;
for(run=0; run<=MAX_RUN; run++){
int last;
for(last=0; last<2; last++){
- rl_length[0][i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level,0);
- rl_length[1][i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level,1);
+ rl_length[i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level, 0);
}
}
}
int size=0;
int code;
int run_diff= intra ? 0 : 1;
-
+
code = get_rl_index(rl, last, run, level);
size+= rl->table_vlc[code][1];
if (code == rl->n) {
int level1, run1;
level1 = level - rl->max_level[last][run];
- if (level1 < 1)
+ if (level1 < 1)
goto esc2;
code = get_rl_index(rl, last, run, level1);
if (code == rl->n) {
return size;
}
-static void find_best_tables(MpegEncContext * s)
+void ff_find_best_tables(MpegEncContext * s)
{
int i;
int best =-1, best_size =9999999;
int size=0;
if(i>0){// ;)
- size++;
+ size++;
chroma_size++;
}
for(level=0; level<=MAX_LEVEL; level++){
int inter_count = s->ac_stats[0][0][level][run][last] + s->ac_stats[0][1][level][run][last];
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==I_TYPE){
- size += intra_luma_count *rl_length[1][i ][level][run][last];
- chroma_size+= intra_chroma_count*rl_length[1][i+3][level][run][last];
+
+ if(s->pict_type==FF_I_TYPE){
+ size += intra_luma_count *rl_length[i ][level][run][last];
+ chroma_size+= intra_chroma_count*rl_length[i+3][level][run][last];
}else{
- size+= intra_luma_count *rl_length[1][i ][level][run][last]
- +intra_chroma_count*rl_length[1][i+3][level][run][last]
- +inter_count *rl_length[0][i+3][level][run][last];
- }
+ size+= intra_luma_count *rl_length[i ][level][run][last]
+ +intra_chroma_count*rl_length[i+3][level][run][last]
+ +inter_count *rl_length[i+3][level][run][last];
+ }
}
if(last_size == size+chroma_size) break;
}
}
}
-// printf("type:%d, best:%d, qp:%d, var:%d, mcvar:%d, size:%d //\n",
+// 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==P_TYPE) chroma_best= best;
+
+ if(s->pict_type==FF_P_TYPE) chroma_best= best;
memset(s->ac_stats, 0, sizeof(int)*(MAX_LEVEL+1)*(MAX_RUN+1)*2*2*2);
s->rl_table_index = best;
s->rl_chroma_table_index= chroma_best;
-
+
if(s->pict_type != s->last_non_b_pict_type){
s->rl_table_index= 2;
- if(s->pict_type==I_TYPE)
+ if(s->pict_type==FF_I_TYPE)
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)
{
- find_best_tables(s);
+ ff_find_best_tables(s);
align_put_bits(&s->pb);
put_bits(&s->pb, 2, s->pict_type - 1);
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==P_TYPE);
+ s->inter_intra_pred= (s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE && s->pict_type==FF_P_TYPE);
+//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 == I_TYPE) {
- s->no_rounding = 1;
+ if (s->pict_type == FF_I_TYPE) {
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);
if(s->bit_rate>MBAC_BITRATE)
if(s->msmpeg4_version>2){
if(!s->per_mb_rl_table){
- code012(&s->pb, s->rl_chroma_table_index);
- code012(&s->pb, s->rl_table_index);
+ ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index);
+ ff_msmpeg4_code012(&s->pb, s->rl_table_index);
}
put_bits(&s->pb, 1, s->dc_table_index);
}
} else {
put_bits(&s->pb, 1, s->use_skip_mb_code);
-
+
if(s->msmpeg4_version==4 && s->bit_rate>MBAC_BITRATE)
put_bits(&s->pb, 1, s->per_mb_rl_table);
if(s->msmpeg4_version>2){
if(!s->per_mb_rl_table)
- code012(&s->pb, s->rl_table_index);
+ ff_msmpeg4_code012(&s->pb, s->rl_table_index);
put_bits(&s->pb, 1, s->dc_table_index);
put_bits(&s->pb, 1, s->mv_table_index);
}
-
- if(s->flipflop_rounding){
- s->no_rounding ^= 1;
- }else{
- s->no_rounding = 0;
- }
}
s->esc3_level_length= 0;
#ifdef DEBUG
intra_count = 0;
- printf("*****frame %d:\n", frame_count++);
+ av_log(s->avctx, AV_LOG_DEBUG, "*****frame %d:\n", frame_count++);
#endif
}
void msmpeg4_encode_ext_header(MpegEncContext * s)
{
- put_bits(&s->pb, 5, s->frame_rate / FRAME_RATE_BASE); //yes 29.97 -> 29
+ put_bits(&s->pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29
- put_bits(&s->pb, 11, MIN(s->bit_rate/1024, 2047));
+ put_bits(&s->pb, 11, FFMIN(s->bit_rate/1024, 2047));
- if(s->msmpeg4_version<3)
- s->flipflop_rounding=0;
- else{
- s->flipflop_rounding=1;
+ if(s->msmpeg4_version>=3)
put_bits(&s->pb, 1, s->flipflop_rounding);
- }
+ else
+ assert(s->flipflop_rounding==0);
}
+#endif //CONFIG_ENCODERS
+
/* predict coded block */
-static inline int coded_block_pred(MpegEncContext * s, int n, UINT8 **coded_block_ptr)
+int ff_msmpeg4_coded_block_pred(MpegEncContext * s, int n, uint8_t **coded_block_ptr)
{
int xy, wrap, pred, a, b, c;
xy = s->block_index[n];
- wrap = s->block_wrap[0];
+ wrap = s->b8_stride;
/* B C
- * A X
+ * A X
*/
a = s->coded_block[xy - 1 ];
b = s->coded_block[xy - 1 - wrap];
c = s->coded_block[xy - wrap];
-
+
if (b == c) {
pred = a;
} else {
pred = c;
}
-
+
/* store value */
*coded_block_ptr = &s->coded_block[xy];
return pred;
}
-static void msmpeg4_encode_motion(MpegEncContext * s,
+#ifdef CONFIG_ENCODERS
+
+void ff_msmpeg4_encode_motion(MpegEncContext * s,
int mx, int my)
{
int code;
my += 64;
else if (my >= 64)
my -= 64;
-
+
mx += 32;
my += 32;
#if 0
if ((unsigned)mx >= 64 ||
- (unsigned)my >= 64)
- fprintf(stderr, "error mx=%d my=%d\n", mx, my);
+ (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];
code = mv->table_mv_index[(mx << 6) | my];
- set_stat(ST_MV);
- put_bits(&s->pb,
- mv->table_mv_bits[code],
+ put_bits(&s->pb,
+ mv->table_mv_bits[code],
mv->table_mv_code[code]);
if (code == mv->n) {
- /* escape : code litterally */
+ /* escape : code literally */
put_bits(&s->pb, 6, mx);
put_bits(&s->pb, 6, my);
}
}
-static inline void handle_slices(MpegEncContext *s){
+void ff_msmpeg4_handle_slices(MpegEncContext *s){
if (s->mb_x == 0) {
if (s->slice_height && (s->mb_y % s->slice_height) == 0) {
- if(s->msmpeg4_version != 4){
+ if(s->msmpeg4_version < 4){
ff_mpeg4_clean_buffers(s);
}
s->first_slice_line = 1;
} else {
- s->first_slice_line = 0;
+ s->first_slice_line = 0;
}
}
}
-void msmpeg4_encode_mb(MpegEncContext * s,
+void 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;
- UINT8 *coded_block;
+ uint8_t *coded_block;
+
+ ff_msmpeg4_handle_slices(s);
- handle_slices(s);
-
if (!s->mb_intra) {
- /* compute cbp */
- set_stat(ST_INTER_MB);
- cbp = 0;
- for (i = 0; i < 6; i++) {
- if (s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
- }
- if (s->use_skip_mb_code && (cbp | motion_x | motion_y) == 0) {
- /* skip macroblock */
- put_bits(&s->pb, 1, 1);
- return;
- }
+ /* compute cbp */
+ cbp = 0;
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0)
+ cbp |= 1 << (5 - i);
+ }
+ if (s->use_skip_mb_code && (cbp | motion_x | motion_y) == 0) {
+ /* skip macroblock */
+ put_bits(&s->pb, 1, 1);
+ s->last_bits++;
+ s->misc_bits++;
+ s->skip_count++;
+
+ return;
+ }
if (s->use_skip_mb_code)
- put_bits(&s->pb, 1, 0); /* mb coded */
-
+ put_bits(&s->pb, 1, 0); /* mb coded */
+
if(s->msmpeg4_version<=2){
- put_bits(&s->pb,
- v2_mb_type[cbp&3][1],
+ put_bits(&s->pb,
+ v2_mb_type[cbp&3][1],
v2_mb_type[cbp&3][0]);
if((cbp&3) != 3) coded_cbp= cbp ^ 0x3C;
else coded_cbp= cbp;
- put_bits(&s->pb,
- cbpy_tab[coded_cbp>>2][1],
+ put_bits(&s->pb,
+ cbpy_tab[coded_cbp>>2][1],
cbpy_tab[coded_cbp>>2][0]);
-
- h263_pred_motion(s, 0, &pred_x, &pred_y);
+
+ s->misc_bits += get_bits_diff(s);
+
+ 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],
+ put_bits(&s->pb,
+ table_mb_non_intra[cbp + 64][1],
table_mb_non_intra[cbp + 64][0]);
+ s->misc_bits += get_bits_diff(s);
+
/* motion vector */
- h263_pred_motion(s, 0, &pred_x, &pred_y);
- msmpeg4_encode_motion(s, motion_x - pred_x,
+ h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_msmpeg4_encode_motion(s, motion_x - pred_x,
motion_y - pred_y);
}
+
+ s->mv_bits += get_bits_diff(s);
+
+ for (i = 0; i < 6; i++) {
+ ff_msmpeg4_encode_block(s, block[i], i);
+ }
+ s->p_tex_bits += get_bits_diff(s);
} else {
- /* compute cbp */
- cbp = 0;
+ /* compute cbp */
+ cbp = 0;
coded_cbp = 0;
- for (i = 0; i < 6; i++) {
+ for (i = 0; i < 6; i++) {
int val, pred;
val = (s->block_last_index[i] >= 1);
cbp |= val << (5 - i);
if (i < 4) {
/* predict value for close blocks only for luma */
- pred = coded_block_pred(s, i, &coded_block);
+ pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block);
*coded_block = val;
val = val ^ pred;
}
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 == I_TYPE) {
- put_bits(&s->pb,
+ if (s->pict_type == FF_I_TYPE) {
+ put_bits(&s->pb,
v2_intra_cbpc[cbp&3][1], 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],
+ 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]);
}
- put_bits(&s->pb, 1, 0); /* no AC prediction yet */
- put_bits(&s->pb,
- cbpy_tab[cbp>>2][1],
+ put_bits(&s->pb, 1, 0); /* no AC prediction yet */
+ put_bits(&s->pb,
+ cbpy_tab[cbp>>2][1],
cbpy_tab[cbp>>2][0]);
}else{
- 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]);
+ if (s->pict_type == FF_I_TYPE) {
+ 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],
+ put_bits(&s->pb, 1, 0); /* mb coded */
+ put_bits(&s->pb,
+ table_mb_non_intra[cbp][1],
table_mb_non_intra[cbp][0]);
}
- set_stat(ST_INTRA_MB);
- put_bits(&s->pb, 1, 0); /* no AC prediction yet */
+ 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]);
}
}
- }
+ s->misc_bits += get_bits_diff(s);
- for (i = 0; i < 6; i++) {
- msmpeg4_encode_block(s, block[i], i);
+ for (i = 0; i < 6; i++) {
+ ff_msmpeg4_encode_block(s, block[i], i);
+ }
+ s->i_tex_bits += get_bits_diff(s);
+ s->i_count++;
}
}
-/* old ffmpeg msmpeg4v3 mode */
-void ff_old_msmpeg4_dc_scale(MpegEncContext * s)
-{
- if (s->qscale < 5){
- s->y_dc_scale = 8;
- s->c_dc_scale = 8;
- }else if (s->qscale < 9){
- s->y_dc_scale = 2 * s->qscale;
- s->c_dc_scale = (s->qscale + 13)>>1;
- }else{
- s->y_dc_scale = s->qscale + 8;
- s->c_dc_scale = (s->qscale + 13)>>1;
- }
-}
+#endif //CONFIG_ENCODERS
-static inline int msmpeg4v1_pred_dc(MpegEncContext * s, int n,
- INT32 **dc_val_ptr)
+static inline int msmpeg4v1_pred_dc(MpegEncContext * s, int n,
+ int32_t **dc_val_ptr)
{
int i;
} else {
i= n-3;
}
-
+
*dc_val_ptr= &s->last_dc[i];
- return s->last_dc[i];
+ return s->last_dc[i];
}
static int get_dc(uint8_t *src, int stride, int scale)
sum+=src[x + y*stride];
}
}
- return (sum + (scale>>1))/scale;
+ return FASTDIV((sum + (scale>>1)), scale);
}
/* dir = 0: left, dir = 1: top prediction */
-static inline int msmpeg4_pred_dc(MpegEncContext * s, int n,
- UINT16 **dc_val_ptr, int *dir_ptr)
+static inline int msmpeg4_pred_dc(MpegEncContext * s, int n,
+ int16_t **dc_val_ptr, int *dir_ptr)
{
int a, b, c, wrap, pred, scale;
- INT16 *dc_val;
+ int16_t *dc_val;
/* find prediction */
if (n < 4) {
- scale = s->y_dc_scale;
+ scale = s->y_dc_scale;
} else {
- scale = s->c_dc_scale;
+ scale = s->c_dc_scale;
}
-
+
wrap = s->block_wrap[n];
dc_val= s->dc_val[0] + s->block_index[n];
/* B C
- * A X
+ * A X
*/
a = dc_val[ - 1];
b = dc_val[ - 1 - wrap];
c = dc_val[ - wrap];
-
- if(s->first_slice_line && (n&2)==0 && s->msmpeg4_version!=4){
+
+ if(s->first_slice_line && (n&2)==0 && s->msmpeg4_version<4){
b=c=1024;
}
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 PIC
asm volatile(
- "movl %3, %%eax \n\t"
- "shrl $1, %%eax \n\t"
- "addl %%eax, %2 \n\t"
- "addl %%eax, %1 \n\t"
- "addl %0, %%eax \n\t"
- "mull %4 \n\t"
- "movl %%edx, %0 \n\t"
- "movl %1, %%eax \n\t"
- "mull %4 \n\t"
- "movl %%edx, %1 \n\t"
- "movl %2, %%eax \n\t"
- "mull %4 \n\t"
- "movl %%edx, %2 \n\t"
- : "+b" (a), "+c" (b), "+D" (c)
- : "g" (scale), "S" (inverse[scale])
- : "%eax", "%edx"
+ "movl %3, %%eax \n\t"
+ "shrl $1, %%eax \n\t"
+ "addl %%eax, %2 \n\t"
+ "addl %%eax, %1 \n\t"
+ "addl %0, %%eax \n\t"
+ "mull %4 \n\t"
+ "movl %%edx, %0 \n\t"
+ "movl %1, %%eax \n\t"
+ "mull %4 \n\t"
+ "movl %%edx, %1 \n\t"
+ "movl %2, %%eax \n\t"
+ "mull %4 \n\t"
+ "movl %%edx, %2 \n\t"
+ : "+b" (a), "+c" (b), "+D" (c)
+ : "g" (scale), "S" (ff_inverse[scale])
+ : "%eax", "%edx"
);
#else
/* #elif defined (ARCH_ALPHA) */
common case. But they are costly everywhere...
*/
if (scale == 8) {
- a = (a + (8 >> 1)) / 8;
- b = (b + (8 >> 1)) / 8;
- c = (c + (8 >> 1)) / 8;
+ a = (a + (8 >> 1)) / 8;
+ b = (b + (8 >> 1)) / 8;
+ c = (c + (8 >> 1)) / 8;
} else {
- a = (a + (scale >> 1)) / scale;
- b = (b + (scale >> 1)) / scale;
- c = (c + (scale >> 1)) / scale;
+ a = FASTDIV((a + (scale >> 1)), scale);
+ b = FASTDIV((b + (scale >> 1)), scale);
+ c = FASTDIV((c + (scale >> 1)), scale);
}
#endif
/* XXX: WARNING: they did not choose the same test as MPEG4. This
if(s->inter_intra_pred){
uint8_t *dest;
int wrap;
-
+
if(n==1){
pred=a;
*dir_ptr = 0;
}else{
if(n<4){
wrap= s->linesize;
- dest= s->current_picture[0] + (((n>>1) + 2*s->mb_y) * 8* wrap ) + ((n&1) + 2*s->mb_x) * 8;
+ dest= s->current_picture.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[n-3] + (s->mb_y * 8 * wrap) + s->mb_x * 8;
+ dest= s->current_picture.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);
if(s->mb_y==0) c= (1024 + (scale>>1))/scale;
else c= get_dc(dest-8*wrap, wrap, scale*8);
-
+
if (s->h263_aic_dir==0) {
pred= a;
*dir_ptr = 0;
static void msmpeg4_encode_dc(MpegEncContext * s, int level, int n, int *dir_ptr)
{
int sign, code;
- int pred;
+ int pred, extquant;
+ int extrabits = 0;
if(s->msmpeg4_version==1){
- INT32 *dc_val;
+ int32_t *dc_val;
pred = msmpeg4v1_pred_dc(s, n, &dc_val);
-
+
/* update predictor */
*dc_val= level;
}else{
- UINT16 *dc_val;
+ int16_t *dc_val;
pred = msmpeg4_pred_dc(s, n, &dc_val, dir_ptr);
/* update predictor */
if(s->msmpeg4_version<=2){
if (n < 4) {
- put_bits(&s->pb,
+ put_bits(&s->pb,
v2_dc_lum_table[level+256][1],
v2_dc_lum_table[level+256][0]);
}else{
- put_bits(&s->pb,
+ put_bits(&s->pb,
v2_dc_chroma_table[level+256][1],
v2_dc_chroma_table[level+256][0]);
}
sign = 1;
}
code = level;
- if (code > DC_MAX)
+ if (code > DC_MAX)
code = DC_MAX;
+ else if( s->msmpeg4_version>=6 ) {
+ if( s->qscale == 1 ) {
+ extquant = (level + 3) & 0x3;
+ code = ((level+3)>>2);
+ } else if( s->qscale == 2 ) {
+ extquant = (level + 1) & 0x1;
+ code = ((level+1)>>1);
+ }
+ }
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]);
}
}
-
+
+ if(s->msmpeg4_version>=6 && s->qscale<=2)
+ extrabits = 3 - s->qscale;
+
if (code == DC_MAX)
- put_bits(&s->pb, 8, level);
-
+ put_bits(&s->pb, 8 + extrabits, level);
+ else if(extrabits > 0)//== VC1 && s->qscale<=2
+ put_bits(&s->pb, extrabits, extquant);
+
if (level != 0) {
put_bits(&s->pb, 1, sign);
}
/* 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)
+void ff_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 *scantable;
+ 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) {
} else {
rl = &rl_table[3 + s->rl_chroma_table_index];
}
- run_diff = 0;
+ run_diff = s->msmpeg4_version>=4;
scantable= s->intra_scantable.permutated;
- set_stat(ST_INTRA_AC);
} else {
i = 0;
rl = &rl_table[3 + s->rl_table_index];
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){
+ if(s->msmpeg4_version>=4 && s->msmpeg4_version<6 && s->block_last_index[n]>0){
for(last_index=63; last_index>=0; last_index--){
if(block[scantable[last_index]]) break;
}
/* 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;
- }
+ 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]++;
int level1, run1;
level1 = level - rl->max_level[last][run];
- if (level1 < 1)
+ if (level1 < 1)
goto esc2;
code = get_rl_index(rl, last, run, level1);
if (code == rl->n) {
run1 = run - rl->max_run[last][level] - run_diff;
if (run1 < 0)
goto esc3;
+ code = get_rl_index(rl, last, run1+1, level);
+ if (s->msmpeg4_version == 4 && code == rl->n)
+ 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->msmpeg4_version>=4){
if(s->esc3_level_length==0){
s->esc3_level_length=8;
s->esc3_run_length= 6;
+ //ESCLVLSZ + ESCRUNSZ
if(s->qscale<8)
- put_bits(&s->pb, 6, 3);
+ put_bits(&s->pb, 6 + (s->msmpeg4_version>=6), 3);
else
put_bits(&s->pb, 8, 3);
}
} else {
put_bits(&s->pb, 1, sign);
}
- last_non_zero = i;
- }
+ last_non_zero = i;
+ }
}
}
/****************************************/
/* decoding stuff */
-static VLC mb_non_intra_vlc;
-static VLC mb_intra_vlc;
-static VLC dc_lum_vlc[2];
-static VLC dc_chroma_vlc[2];
+VLC ff_mb_non_intra_vlc[4];
static VLC v2_dc_lum_vlc;
static VLC v2_dc_chroma_vlc;
static VLC cbpy_vlc;
static VLC v2_mv_vlc;
static VLC v1_intra_cbpc_vlc;
static VLC v1_inter_cbpc_vlc;
-static VLC inter_intra_vlc;
+VLC ff_inter_intra_vlc;
-/* this table is practically identical to the one from h263 except that its inverted */
+/* This table is practically identical to the one from h263
+ * except that it is inverted. */
static void init_h263_dc_for_msmpeg4(void)
{
int level, uni_code, uni_len;
v = abs(level);
while (v) {
v >>= 1;
- size++;
+ size++;
}
if (level < 0)
/* luminance h263 */
uni_code= DCtab_lum[size][0];
uni_len = DCtab_lum[size][1];
- uni_code ^= (1<<uni_len)-1; //M$ doesnt like compatibility
+ uni_code ^= (1<<uni_len)-1; //M$ does not like compatibility
if (size > 0) {
uni_code<<=size; uni_code|=l;
/* chrominance h263 */
uni_code= DCtab_chrom[size][0];
uni_len = DCtab_chrom[size][1];
- uni_code ^= (1<<uni_len)-1; //M$ doesnt like compatibility
-
+ uni_code ^= (1<<uni_len)-1; //M$ does not like compatibility
+
if (size > 0) {
uni_code<<=size; uni_code|=l;
uni_len+=size;
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], static_rl_table_store[i]);
+ 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,
+ init_vlc(&mv->vlc, MV_VLC_BITS, mv->n + 1,
mv->table_mv_bits, 1, 1,
- mv->table_mv_code, 2, 2);
- }
-
- 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(&v2_dc_lum_vlc, DC_VLC_BITS, 512,
+ mv->table_mv_code, 2, 2, 1);
+ }
+
+ 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);
- init_vlc(&v2_dc_chroma_vlc, DC_VLC_BITS, 512,
+ &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);
-
- init_vlc(&mb_non_intra_vlc, MB_NON_INTRA_VLC_BITS, 128,
- &table_mb_non_intra[0][1], 8, 4,
- &table_mb_non_intra[0][0], 8, 4);
- 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(&v1_intra_cbpc_vlc, V1_INTRA_CBPC_VLC_BITS, 8,
+ &mvtab[0][0], 2, 1, 1);
+
+ for(i=0; i<4; i++){
+ init_vlc(&ff_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, 1); //FIXME name?
+ }
+
+ 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);
- init_vlc(&v1_inter_cbpc_vlc, V1_INTER_CBPC_VLC_BITS, 25,
+ 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);
-
- init_vlc(&inter_intra_vlc, INTER_INTRA_VLC_BITS, 4,
+ inter_MCBPC_code, 1, 1, 1);
+
+ init_vlc(&ff_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){
case 1:
case 2:
case 4:
s->decode_mb= msmpeg4v34_decode_mb;
break;
+ case 5:
+ if (ENABLE_WMV2_DECODER)
+ s->decode_mb= ff_wmv2_decode_mb;
+ case 6:
+ //FIXME + TODO VC1 decode mb
+ break;
}
-
- return 0;
-}
-static int decode012(GetBitContext *gb)
-{
- int n;
- n = get_bits1(gb);
- if (n == 0)
- return 0;
- else
- return get_bits1(gb) + 1;
+ s->slice_height= s->mb_height; //to avoid 1/0 if the first frame is not a keyframe
+
+ return 0;
}
int msmpeg4_decode_picture_header(MpegEncContext * s)
#if 0
{
int i;
-for(i=0; i<s->gb.size*8; i++)
- printf("%d", get_bits1(&s->gb));
+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);
-printf("END\n");
+av_log(s->avctx, AV_LOG_DEBUG, "END\n");
return -1;
}
#endif
int start_code, num;
start_code = (get_bits(&s->gb, 16)<<16) | get_bits(&s->gb, 16);
if(start_code!=0x00000100){
- fprintf(stderr, "invalid startcode\n");
+ 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 != I_TYPE &&
- s->pict_type != P_TYPE){
- fprintf(stderr, "invalid picture type\n");
+ if (s->pict_type != FF_I_TYPE &&
+ s->pict_type != FF_P_TYPE){
+ av_log(s->avctx, AV_LOG_ERROR, "invalid picture type\n");
return -1;
}
#if 0
{
static int had_i=0;
- if(s->pict_type == I_TYPE) had_i=1;
+ if(s->pict_type == FF_I_TYPE) had_i=1;
if(!had_i) return -1;
}
#endif
- s->qscale = get_bits(&s->gb, 5);
+ s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
+ if(s->qscale==0){
+ av_log(s->avctx, AV_LOG_ERROR, "invalid qscale\n");
+ return -1;
+ }
- if (s->pict_type == I_TYPE) {
- code = get_bits(&s->gb, 5);
+ if (s->pict_type == FF_I_TYPE) {
+ code = get_bits(&s->gb, 5);
if(s->msmpeg4_version==1){
if(code==0 || code>s->mb_height){
- fprintf(stderr, "invalid slice height %d\n", code);
+ av_log(s->avctx, AV_LOG_ERROR, "invalid slice height %d\n", code);
return -1;
}
}else{
/* 0x17: one slice, 0x18: two slices, ... */
if (code < 0x17){
- fprintf(stderr, "error, slice code was %X\n", code);
+ av_log(s->avctx, AV_LOG_ERROR, "error, slice code was %X\n", code);
return -1;
}
if(s->bit_rate > MBAC_BITRATE) s->per_mb_rl_table= get_bits1(&s->gb);
else s->per_mb_rl_table= 0;
-
+
if(!s->per_mb_rl_table){
s->rl_chroma_table_index = decode012(&s->gb);
s->rl_table_index = decode012(&s->gb);
break;
}
s->no_rounding = 1;
-/* printf("qscale:%d rlc:%d rl:%d dc:%d mbrl:%d slice:%d \n",
- s->qscale,
- s->rl_chroma_table_index,
- s->rl_table_index,
- s->dc_table_index,
+ if(s->avctx->debug&FF_DEBUG_PICT_INFO)
+ av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d slice:%d \n",
+ s->qscale,
+ s->rl_chroma_table_index,
+ s->rl_table_index,
+ s->dc_table_index,
s->per_mb_rl_table,
- s->slice_height);*/
+ s->slice_height);
} else {
switch(s->msmpeg4_version){
case 1:
s->inter_intra_pred= (s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
break;
}
-/* printf("skip:%d rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d \n",
- s->use_skip_mb_code,
- s->rl_table_index,
- s->rl_chroma_table_index,
- s->dc_table_index,
- s->mv_table_index,
+
+ if(s->avctx->debug&FF_DEBUG_PICT_INFO)
+ av_log(s->avctx, AV_LOG_DEBUG, "skip:%d rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d \n",
+ s->use_skip_mb_code,
+ s->rl_table_index,
+ s->rl_chroma_table_index,
+ s->dc_table_index,
+ s->mv_table_index,
s->per_mb_rl_table,
- s->qscale);*/
- if(s->flipflop_rounding){
- s->no_rounding ^= 1;
- }else{
- s->no_rounding = 0;
- }
+ s->qscale);
+
+ if(s->flipflop_rounding){
+ s->no_rounding ^= 1;
+ }else{
+ s->no_rounding = 0;
+ }
}
+//printf("%d %d %d %d %d\n", s->pict_type, s->bit_rate, s->inter_intra_pred, s->width, s->height);
s->esc3_level_length= 0;
s->esc3_run_length= 0;
#ifdef DEBUG
- printf("*****frame %d:\n", frame_count++);
+ av_log(s->avctx, AV_LOG_DEBUG, "*****frame %d:\n", frame_count++);
#endif
return 0;
}
else if(left<length+8)
{
s->flipflop_rounding= 0;
- printf("ext header missing, %d left\n", left);
+ if(s->msmpeg4_version != 2)
+ av_log(s->avctx, AV_LOG_ERROR, "ext header missing, %d left\n", left);
}
else
{
- fprintf(stderr, "I frame too long, ignoring ext header\n");
+ av_log(s->avctx, AV_LOG_ERROR, "I frame too long, ignoring ext header\n");
}
return 0;
tab[i] = val;
}
+#ifdef CONFIG_ENCODERS
static void msmpeg4v2_encode_motion(MpegEncContext * s, int val)
{
int range, bit_size, sign, code, bits;
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, mvtab[code][1] + 1, (mvtab[code][0] << 1) | sign);
if (bit_size > 0) {
put_bits(&s->pb, bit_size, bits);
}
}
}
+#endif
-/* this is identical to h263 except that its range is multiplied by 2 */
+/* This is identical to h263 except that its range is multiplied by 2. */
static int msmpeg4v2_decode_motion(MpegEncContext * s, int pred, int f_code)
{
int code, val, sign, shift;
return pred;
sign = get_bits1(&s->gb);
shift = f_code - 1;
- val = (code - 1) << shift;
- if (shift > 0)
+ val = code;
+ if (shift) {
+ val = (val - 1) << shift;
val |= get_bits(&s->gb, shift);
- val++;
+ val++;
+ }
if (sign)
val = -val;
static int msmpeg4v12_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
{
int cbp, code, i;
-
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width]= 0;
-
- if (s->pict_type == P_TYPE) {
+
+ if (s->pict_type == FF_P_TYPE) {
if (s->use_skip_mb_code) {
if (get_bits1(&s->gb)) {
/* skip mb */
s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
- s->mb_skiped = 1;
+ s->mb_skipped = 1;
return 0;
}
}
else
code = get_vlc2(&s->gb, v1_inter_cbpc_vlc.table, V1_INTER_CBPC_VLC_BITS, 3);
if(code<0 || code>7){
- fprintf(stderr, "cbpc %d invalid at %d %d\n", code, s->mb_x, s->mb_y);
+ 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;
else
cbp= get_vlc2(&s->gb, v1_intra_cbpc_vlc.table, V1_INTRA_CBPC_VLC_BITS, 1);
if(cbp<0 || cbp>3){
- fprintf(stderr, "cbpc %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
+ 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){
- fprintf(stderr, "cbpy %d invalid at %d %d\n", cbp, s->mb_x, s->mb_y);
+ 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, &mx, &my);
+
+ 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;
} 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;
+ if(s->pict_type==FF_P_TYPE) cbp^=0x3C;
}
}
+ s->dsp.clear_blocks(s->block[0]);
for (i = 0; i < 6; i++) {
- if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1) < 0)
- {
- fprintf(stderr,"\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
+ if (ff_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 *coded_val;
+ uint8_t *coded_val;
+ uint32_t * const mb_type_ptr= &s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride ];
-#ifdef PRINT_MB
-if(s->mb_x==0){
- printf("\n");
- if(s->mb_y==0) printf("\n");
-}
-#endif
-
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width]= 0;
-
- if (s->pict_type == P_TYPE) {
- set_stat(ST_INTER_MB);
+ if (s->pict_type == FF_P_TYPE) {
if (s->use_skip_mb_code) {
if (get_bits1(&s->gb)) {
/* skip mb */
s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
- s->mb_skiped = 1;
-#ifdef PRINT_MB
-printf("S ");
-#endif
+ s->mb_skipped = 1;
+ *mb_type_ptr = MB_TYPE_SKIP | MB_TYPE_L0 | MB_TYPE_16x16;
+
return 0;
}
}
-
- code = get_vlc2(&s->gb, mb_non_intra_vlc.table, MB_NON_INTRA_VLC_BITS, 3);
+
+ code = get_vlc2(&s->gb, ff_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;
-
+ //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);
+ 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 */
for(i=0;i<6;i++) {
int val = ((code >> (5 - i)) & 1);
if (i < 4) {
- int pred = coded_block_pred(s, i, &coded_val);
+ int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val);
val = val ^ pred;
*coded_val = val;
}
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, &mx, &my);
- if (msmpeg4_decode_motion(s, &mx, &my) < 0)
+ 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;
s->mv_type = MV_TYPE_16X16;
s->mv[0][0][0] = mx;
s->mv[0][0][1] = my;
-#ifdef PRINT_MB
-printf("P ");
-#endif
+ *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);
-#ifdef PRINT_MB
-printf("%c", s->ac_pred ? 'A' : 'I');
-#endif
+ *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);
+ s->h263_aic_dir= get_vlc2(&s->gb, ff_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->dsp.clear_blocks(s->block[0]);
for (i = 0; i < 6; i++) {
- if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1) < 0)
- {
- fprintf(stderr,"\nerror while decoding block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
- return -1;
- }
+ if (ff_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)
+int ff_msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
+ int n, int coded, const uint8_t *scan_table)
{
int level, i, last, run, run_diff;
int dc_pred_dir;
RLTable *rl;
RL_VLC_ELEM *rl_vlc;
- const UINT8 *scan_table;
int qmul, qadd;
if (s->mb_intra) {
qmul=1;
qadd=0;
- /* DC coef */
- set_stat(ST_DC);
+ /* DC coef */
level = msmpeg4_decode_dc(s, n, &dc_pred_dir);
-#ifdef PRINT_MB
-{
- static int c;
- if(n==0) c=0;
- if(n==4) printf("%X", c);
- c+= c +dc_pred_dir;
-}
-#endif
+
if (level < 0){
- fprintf(stderr, "dc overflow- block: %d qscale: %d//\n", n, s->qscale);
+ av_log(s->avctx, AV_LOG_ERROR, "dc overflow- block: %d qscale: %d//\n", n, s->qscale);
if(s->inter_intra_pred) level=0;
else return -1;
}
if (n < 4) {
rl = &rl_table[s->rl_table_index];
if(level > 256*s->y_dc_scale){
- fprintf(stderr, "dc overflow+ L qscale: %d//\n", s->qscale);
+ 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];
if(level > 256*s->c_dc_scale){
- fprintf(stderr, "dc overflow+ C qscale: %d//\n", s->qscale);
+ av_log(s->avctx, AV_LOG_ERROR, "dc overflow+ C qscale: %d//\n", s->qscale);
if(!s->inter_intra_pred) return -1;
}
}
block[0] = level;
- run_diff = 0;
+ run_diff = s->msmpeg4_version >= 4;
i = 0;
if (!coded) {
goto not_coded;
}
if (s->ac_pred) {
- if (dc_pred_dir == 0)
+ if (dc_pred_dir == 0)
scan_table = s->intra_v_scantable.permutated; /* left */
else
scan_table = s->intra_h_scantable.permutated; /* top */
} else {
scan_table = s->intra_scantable.permutated;
}
- set_stat(ST_INTRA_AC);
rl_vlc= rl->rl_vlc[0];
} else {
qmul = s->qscale << 1;
s->block_last_index[n] = i;
return 0;
}
- scan_table = s->inter_scantable.permutated;
- set_stat(ST_INTER_AC);
+ if(!scan_table)
+ scan_table = s->inter_scantable.permutated;
rl_vlc= rl->rl_vlc[s->qscale];
}
{
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);
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);
SKIP_COUNTER(re, &s->gb, 1+6+8);
- }else{
+ }else{
int sign;
last= SHOW_UBITS(re, &s->gb, 1); SKIP_BITS(re, &s->gb, 1);
if(!s->esc3_level_length){
if(s->qscale<8){
ll= SHOW_UBITS(re, &s->gb, 3); SKIP_BITS(re, &s->gb, 3);
if(ll==0){
- if(SHOW_UBITS(re, &s->gb, 1)) printf("cool a new vlc code ,contact the ffmpeg developers and upload the file\n");
+ if(SHOW_UBITS(re, &s->gb, 1)) av_log(s->avctx, AV_LOG_ERROR, "cool a new vlc code ,contact the ffmpeg developers and upload the file\n");
SKIP_BITS(re, &s->gb, 1);
ll=8;
}
//printf("level length:%d, run length: %d\n", ll, s->esc3_run_length);
UPDATE_CACHE(re, &s->gb);
}
- run= SHOW_UBITS(re, &s->gb, s->esc3_run_length);
+ run= SHOW_UBITS(re, &s->gb, s->esc3_run_length);
SKIP_BITS(re, &s->gb, s->esc3_run_length);
-
- sign= SHOW_UBITS(re, &s->gb, 1);
+
+ sign= SHOW_UBITS(re, &s->gb, 1);
SKIP_BITS(re, &s->gb, 1);
-
- level= SHOW_UBITS(re, &s->gb, s->esc3_level_length);
+
+ level= SHOW_UBITS(re, &s->gb, s->esc3_level_length);
SKIP_BITS(re, &s->gb, s->esc3_level_length);
if(sign) level= -level;
}
//printf("level: %d, run: %d at %d %d\n", level, run, s->mb_x, s->mb_y);
#if 0 // waste of time / this will detect very few errors
{
- const int abs_level= ABS(level);
+ const int abs_level= FFABS(level);
const int run1= run - rl->max_run[last][abs_level] - run_diff;
if(abs_level<=MAX_LEVEL && run<=MAX_RUN){
if(abs_level <= rl->max_level[last][run]){
- fprintf(stderr, "illegal 3. esc, vlc encoding possible\n");
+ av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, vlc encoding possible\n");
return DECODING_AC_LOST;
}
if(abs_level <= rl->max_level[last][run]*2){
- fprintf(stderr, "illegal 3. esc, esc 1 encoding possible\n");
+ av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, esc 1 encoding possible\n");
return DECODING_AC_LOST;
}
if(run1>=0 && abs_level <= rl->max_level[last][run1]){
- fprintf(stderr, "illegal 3. esc, esc 2 encoding possible\n");
+ av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, esc 2 encoding possible\n");
return DECODING_AC_LOST;
}
}
}
#endif
- //level = level * qmul + (level>0) * qadd - (level<=0) * qadd ;
- if (level>0) level= level * qmul + qadd;
+ //level = level * qmul + (level>0) * qadd - (level<=0) * qadd ;
+ if (level>0) level= level * qmul + qadd;
else level= level * qmul - qadd;
#if 0 // waste of time too :(
if(level>2048 || level<-2048){
- fprintf(stderr, "|level| overflow in 3. esc\n");
+ av_log(s->avctx, AV_LOG_ERROR, "|level| overflow in 3. esc\n");
return DECODING_AC_LOST;
}
#endif
if(last) i+=192;
#ifdef ERROR_DETAILS
if(run==66)
- fprintf(stderr, "illegal vlc code in ESC3 level=%d\n", level);
+ av_log(s->avctx, AV_LOG_ERROR, "illegal vlc code in ESC3 level=%d\n", level);
else if((i>62 && i<192) || i>192+63)
- fprintf(stderr, "run overflow in ESC3 i=%d run=%d level=%d\n", i, run, level);
+ av_log(s->avctx, AV_LOG_ERROR, "run overflow in ESC3 i=%d run=%d level=%d\n", i, run, level);
#endif
} else {
/* second escape */
#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);
#ifdef ERROR_DETAILS
if(run==66)
- fprintf(stderr, "illegal vlc code in ESC2 level=%d\n", level);
+ av_log(s->avctx, AV_LOG_ERROR, "illegal vlc code in ESC2 level=%d\n", level);
else if((i>62 && i<192) || i>192+63)
- fprintf(stderr, "run overflow in ESC2 i=%d run=%d level=%d\n", i, run, level);
+ av_log(s->avctx, AV_LOG_ERROR, "run overflow in ESC2 i=%d run=%d level=%d\n", i, run, level);
#endif
}
} else {
#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);
LAST_SKIP_BITS(re, &s->gb, 1);
#ifdef ERROR_DETAILS
if(run==66)
- fprintf(stderr, "illegal vlc code in ESC1 level=%d\n", level);
+ av_log(s->avctx, AV_LOG_ERROR, "illegal vlc code in ESC1 level=%d\n", level);
else if((i>62 && i<192) || i>192+63)
- fprintf(stderr, "run overflow in ESC1 i=%d run=%d level=%d\n", i, run, level);
+ av_log(s->avctx, AV_LOG_ERROR, "run overflow in ESC1 i=%d run=%d level=%d\n", i, run, level);
#endif
}
} else {
LAST_SKIP_BITS(re, &s->gb, 1);
#ifdef ERROR_DETAILS
if(run==66)
- fprintf(stderr, "illegal vlc code level=%d\n", level);
+ av_log(s->avctx, AV_LOG_ERROR, "illegal vlc code level=%d\n", level);
else if((i>62 && i<192) || i>192+63)
- fprintf(stderr, "run overflow i=%d run=%d level=%d\n", i, run, level);
+ av_log(s->avctx, AV_LOG_ERROR, "run overflow i=%d run=%d level=%d\n", i, run, level);
#endif
}
if (i > 62){
i-= 192;
if(i&(~63)){
- const int left= s->gb.size*8 - get_bits_count(&s->gb);
+ const int left= s->gb.size_in_bits - get_bits_count(&s->gb);
if(((i+192 == 64 && level/qmul==-1) || s->error_resilience<=1) && left>=0){
- fprintf(stderr, "ignoring overflow at %d %d\n", s->mb_x, s->mb_y);
+ av_log(s->avctx, AV_LOG_ERROR, "ignoring overflow at %d %d\n", s->mb_x, s->mb_y);
break;
}else{
- fprintf(stderr, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+ av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
return -1;
}
}
i = 63; /* XXX: not optimal */
}
}
- if(s->msmpeg4_version==4 && i>0) i=63; //FIXME/XXX optimize
+ if(s->msmpeg4_version>=4 && i>0) i=63; //FIXME/XXX optimize
s->block_last_index[n] = i;
-
+
return 0;
}
} else {
level = get_vlc2(&s->gb, v2_dc_chroma_vlc.table, DC_VLC_BITS, 3);
}
- if (level < 0)
+ if (level < 0)
return -1;
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){
- fprintf(stderr, "illegal dc vlc\n");
+ av_log(s->avctx, AV_LOG_ERROR, "illegal dc vlc\n");
return -1;
}
}
if(s->msmpeg4_version==1){
- INT32 *dc_val;
+ int32_t *dc_val;
pred = msmpeg4v1_pred_dc(s, n, &dc_val);
level += pred;
-
+
/* update predictor */
*dc_val= level;
}else{
- UINT16 *dc_val;
+ int16_t *dc_val;
pred = msmpeg4_pred_dc(s, n, &dc_val, dir_ptr);
level += pred;
return level;
}
-static int msmpeg4_decode_motion(MpegEncContext * s,
+int ff_msmpeg4_decode_motion(MpegEncContext * s,
int *mx_ptr, int *my_ptr)
{
MVTable *mv;
code = get_vlc2(&s->gb, mv->vlc.table, MV_VLC_BITS, 2);
if (code < 0){
- fprintf(stderr, "illegal MV code at %d %d\n", s->mb_x, s->mb_y);
+ av_log(s->avctx, AV_LOG_ERROR, "illegal MV code at %d %d\n", s->mb_x, s->mb_y);
return -1;
}
if (code == mv->n) {
projects / ffmpeg / blobdiff