* qpel decoding, gmc decoding, interlaced decoding,
* by Michael Niedermayer <michaelni@gmx.at>
*/
+
+/**
+ * @file h263.c
+ * h263/mpeg4 codec.
+ */
//#define DEBUG
+#include <limits.h>
+
#include "common.h"
#include "dsputil.h"
#include "avcodec.h"
//#undef NDEBUG
//#include <assert.h>
-#if 1
-#define PRINT_MB_TYPE(a) {}
-#else
-#define PRINT_MB_TYPE(a) printf(a)
-#endif
-
#define INTRA_MCBPC_VLC_BITS 6
-#define INTER_MCBPC_VLC_BITS 6
+#define INTER_MCBPC_VLC_BITS 7
#define CBPY_VLC_BITS 6
#define MV_VLC_BITS 9
#define DC_VLC_BITS 9
#ifdef CONFIG_ENCODERS
static void h263_encode_block(MpegEncContext * s, DCTELEM * block,
- int n);
+ int n);
static void h263_encode_motion(MpegEncContext * s, int val, int fcode);
static void h263p_encode_umotion(MpegEncContext * s, int val);
static inline void mpeg4_encode_block(MpegEncContext * s, DCTELEM * block,
- int n, int dc, UINT8 *scan_table,
+ int n, int dc, uint8_t *scan_table,
PutBitContext *dc_pb, PutBitContext *ac_pb);
#endif
int n, int coded);
static inline int mpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr);
static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
- int n, int coded, int intra);
-static int h263_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr);
-static void mpeg4_inv_pred_ac(MpegEncContext * s, INT16 *block, int n,
- int dir);
+ int n, int coded, int intra, int rvlc);
+static int h263_pred_dc(MpegEncContext * s, int n, uint16_t **dc_val_ptr);
+#ifdef CONFIG_ENCODERS
+static void mpeg4_encode_visual_object_header(MpegEncContext * s);
+static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_number);
+#endif //CONFIG_ENCODERS
static void mpeg4_decode_sprite_trajectory(MpegEncContext * s);
-static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr);
-
-extern UINT32 inverse[256];
-
-static UINT16 uni_DCtab_lum [512][2];
-static UINT16 uni_DCtab_chrom[512][2];
+static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, uint16_t **dc_val_ptr, int *dir_ptr);
#ifdef CONFIG_ENCODERS
-static UINT16 (*mv_penalty)[MAX_MV*2+1]= NULL;
-static UINT8 fcode_tab[MAX_MV*2+1];
-static UINT8 umv_fcode_tab[MAX_MV*2+1];
-
-static UINT32 uni_mpeg4_intra_rl_bits[64*64*2*2];
-static UINT8 uni_mpeg4_intra_rl_len [64*64*2*2];
-static UINT32 uni_mpeg4_inter_rl_bits[64*64*2*2];
-static UINT8 uni_mpeg4_inter_rl_len [64*64*2*2];
-#define UNI_MPEG4_ENC_INDEX(last,run,level) ((last)*128 + (run)*256 + (level))
+static uint8_t uni_DCtab_lum_len[512];
+static uint8_t uni_DCtab_chrom_len[512];
+static uint16_t uni_DCtab_lum_bits[512];
+static uint16_t uni_DCtab_chrom_bits[512];
+
+static uint8_t (*mv_penalty)[MAX_MV*2+1]= NULL;
+static uint8_t fcode_tab[MAX_MV*2+1];
+static uint8_t umv_fcode_tab[MAX_MV*2+1];
+
+static uint32_t uni_mpeg4_intra_rl_bits[64*64*2*2];
+static uint8_t uni_mpeg4_intra_rl_len [64*64*2*2];
+static uint32_t uni_mpeg4_inter_rl_bits[64*64*2*2];
+static uint8_t uni_mpeg4_inter_rl_len [64*64*2*2];
+//#define UNI_MPEG4_ENC_INDEX(last,run,level) ((last)*128 + (run)*256 + (level))
//#define UNI_MPEG4_ENC_INDEX(last,run,level) ((last)*128*64 + (run) + (level)*64)
+#define UNI_MPEG4_ENC_INDEX(last,run,level) ((last)*128*64 + (run)*128 + (level))
/* mpeg4
inter
*/
#endif
+#if 0 //3IV1 is quite rare and tis slows things down a tiny bit
+#define IS_3IV1 s->avctx->codec_tag == ff_get_fourcc("3IV1")
+#else
+#define IS_3IV1 0
+#endif
int h263_get_picture_format(int width, int height)
{
return format;
}
+#ifdef CONFIG_ENCODERS
+
+static void aspect_to_info(MpegEncContext * s, AVRational aspect){
+ int i;
+
+ if(aspect.num==0) aspect= (AVRational){1,1};
+
+ for(i=1; i<6; i++){
+ if(av_cmp_q(pixel_aspect[i], aspect) == 0){
+ s->aspect_ratio_info=i;
+ return;
+ }
+ }
+
+ s->aspect_ratio_info= FF_ASPECT_EXTENDED;
+}
+
+void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number)
+{
+ int format;
+
+ align_put_bits(&s->pb);
+
+ put_bits(&s->pb, 17, 1);
+ put_bits(&s->pb, 5, (s->h263_flv-1)); /* 0: h263 escape codes 1: 11-bit escape codes */
+ put_bits(&s->pb, 8, (((int64_t)s->picture_number * 30 * s->avctx->frame_rate_base) /
+ s->avctx->frame_rate) & 0xff); /* TemporalReference */
+ if (s->width == 352 && s->height == 288)
+ format = 2;
+ else if (s->width == 176 && s->height == 144)
+ format = 3;
+ else if (s->width == 128 && s->height == 96)
+ format = 4;
+ else if (s->width == 320 && s->height == 240)
+ format = 5;
+ else if (s->width == 160 && s->height == 120)
+ format = 6;
+ else if (s->width <= 255 && s->height <= 255)
+ format = 0; /* use 1 byte width & height */
+ else
+ format = 1; /* use 2 bytes width & height */
+ put_bits(&s->pb, 3, format); /* PictureSize */
+ if (format == 0) {
+ put_bits(&s->pb, 8, s->width);
+ put_bits(&s->pb, 8, s->height);
+ } else if (format == 1) {
+ put_bits(&s->pb, 16, s->width);
+ put_bits(&s->pb, 16, s->height);
+ }
+ put_bits(&s->pb, 2, s->pict_type == P_TYPE); /* PictureType */
+ put_bits(&s->pb, 1, 1); /* DeblockingFlag: on */
+ put_bits(&s->pb, 5, s->qscale); /* Quantizer */
+ put_bits(&s->pb, 1, 0); /* ExtraInformation */
+
+ if(s->h263_aic){
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= h263_aic_dc_scale_table;
+ }else{
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ }
+}
+
void h263_encode_picture_header(MpegEncContext * s, int picture_number)
{
int format;
s->gob_number = 0;
put_bits(&s->pb, 22, 0x20); /* PSC */
- put_bits(&s->pb, 8, (((INT64)s->picture_number * 30 * FRAME_RATE_BASE) /
- s->frame_rate) & 0xff);
+ put_bits(&s->pb, 8, (((int64_t)s->picture_number * 30 * s->avctx->frame_rate_base) /
+ s->avctx->frame_rate) & 0xff);
put_bits(&s->pb, 1, 1); /* marker */
put_bits(&s->pb, 1, 0); /* h263 id */
put_bits(&s->pb, 3, format);
put_bits(&s->pb,1,0); /* Custom PCF: off */
- s->umvplus = (s->pict_type == P_TYPE) && s->unrestricted_mv;
+ s->umvplus = s->unrestricted_mv;
put_bits(&s->pb, 1, s->umvplus); /* Unrestricted Motion Vector */
put_bits(&s->pb,1,0); /* SAC: off */
put_bits(&s->pb,1,0); /* Advanced Prediction Mode: off */
put_bits(&s->pb,1,0); /* Reference Picture Resampling: off */
put_bits(&s->pb,1,0); /* Reduced-Resolution Update: off */
- if (s->pict_type == I_TYPE)
- s->no_rounding = 0;
- else
- s->no_rounding ^= 1;
put_bits(&s->pb,1,s->no_rounding); /* Rounding Type */
put_bits(&s->pb,2,0); /* Reserved */
put_bits(&s->pb,1,1); /* "1" to prevent start code emulation */
if (format == 7) {
/* Custom Picture Format (CPFMT) */
-
- if (s->aspect_ratio_info)
- put_bits(&s->pb,4,s->aspect_ratio_info);
- else
- put_bits(&s->pb,4,2); /* Aspect ratio: CIF 12:11 (4:3) picture */
+ aspect_to_info(s, s->avctx->sample_aspect_ratio);
+
+ put_bits(&s->pb,4,s->aspect_ratio_info);
put_bits(&s->pb,9,(s->width >> 2) - 1);
put_bits(&s->pb,1,1); /* "1" to prevent start code emulation */
put_bits(&s->pb,9,(s->height >> 2));
- if (s->aspect_ratio_info == FF_ASPECT_EXTENDED)
- {
- put_bits(&s->pb, 8, s->aspected_width);
- put_bits(&s->pb, 8, s->aspected_height);
+ if (s->aspect_ratio_info == FF_ASPECT_EXTENDED){
+ put_bits(&s->pb, 8, s->avctx->sample_aspect_ratio.num);
+ put_bits(&s->pb, 8, s->avctx->sample_aspect_ratio.den);
}
}
/* Unlimited Unrestricted Motion Vectors Indicator (UUI) */
if (s->umvplus)
- put_bits(&s->pb,1,1); /* Limited according tables of Annex D */
+// put_bits(&s->pb,1,1); /* Limited according tables of Annex D */
+ put_bits(&s->pb,2,1); /* unlimited */
+
put_bits(&s->pb, 5, s->qscale);
}
return 0;
}
-static inline int decide_ac_pred(MpegEncContext * s, DCTELEM block[6][64], int dir[6])
+static inline int get_block_rate(MpegEncContext * s, DCTELEM block[64], int block_last_index, uint8_t scantable[64]){
+ int last=0;
+ int j;
+ int rate=0;
+
+ for(j=1; j<=block_last_index; j++){
+ const int index= scantable[j];
+ int level= block[index];
+ if(level){
+ level+= 64;
+ if((level&(~127)) == 0){
+ if(j<block_last_index) rate+= s->intra_ac_vlc_length [UNI_AC_ENC_INDEX(j-last-1, level)];
+ else rate+= s->intra_ac_vlc_last_length[UNI_AC_ENC_INDEX(j-last-1, level)];
+ }else
+ rate += s->ac_esc_length;
+ level-= 64;
+
+ last= j;
+ }
+ }
+
+ return rate;
+}
+
+static inline int decide_ac_pred(MpegEncContext * s, DCTELEM block[6][64], int dir[6], uint8_t *st[6], int zigzag_last_index[6])
{
- int score0=0, score1=0;
+ int score= 0;
int i, n;
+ int8_t * const qscale_table= s->current_picture.qscale_table;
+ memcpy(zigzag_last_index, s->block_last_index, sizeof(int)*6);
+
for(n=0; n<6; n++){
- INT16 *ac_val, *ac_val1;
+ int16_t *ac_val, *ac_val1;
+
+ score -= get_block_rate(s, block[n], s->block_last_index[n], s->intra_scantable.permutated);
ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
ac_val1= ac_val;
if(dir[n]){
- const int xy= s->mb_x + s->mb_y*s->mb_width - s->mb_width;
+ const int xy= s->mb_x + s->mb_y*s->mb_stride - s->mb_stride;
/* top prediction */
ac_val-= s->block_wrap[n]*16;
- if(s->mb_y==0 || s->qscale == s->qscale_table[xy] || n==2 || n==3){
+ if(s->mb_y==0 || s->qscale == qscale_table[xy] || n==2 || n==3){
/* same qscale */
for(i=1; i<8; i++){
- const int level= block[n][s->idct_permutation[i ]];
- score0+= ABS(level);
- score1+= ABS(level - ac_val[i+8]);
- ac_val1[i ]= block[n][s->idct_permutation[i<<3]];
+ const int level= block[n][s->dsp.idct_permutation[i ]];
+ block[n][s->dsp.idct_permutation[i ]] = level - ac_val[i+8];
+ ac_val1[i ]= block[n][s->dsp.idct_permutation[i<<3]];
ac_val1[i+8]= level;
}
}else{
/* different qscale, we must rescale */
for(i=1; i<8; i++){
- const int level= block[n][s->idct_permutation[i ]];
- score0+= ABS(level);
- score1+= ABS(level - ROUNDED_DIV(ac_val[i + 8]*s->qscale_table[xy], s->qscale));
- ac_val1[i ]= block[n][s->idct_permutation[i<<3]];
+ const int level= block[n][s->dsp.idct_permutation[i ]];
+ block[n][s->dsp.idct_permutation[i ]] = level - ROUNDED_DIV(ac_val[i + 8]*qscale_table[xy], s->qscale);
+ ac_val1[i ]= block[n][s->dsp.idct_permutation[i<<3]];
ac_val1[i+8]= level;
}
}
+ st[n]= s->intra_h_scantable.permutated;
}else{
- const int xy= s->mb_x-1 + s->mb_y*s->mb_width;
+ const int xy= s->mb_x-1 + s->mb_y*s->mb_stride;
/* left prediction */
ac_val-= 16;
- if(s->mb_x==0 || s->qscale == s->qscale_table[xy] || n==1 || n==3){
+ if(s->mb_x==0 || s->qscale == qscale_table[xy] || n==1 || n==3){
/* same qscale */
for(i=1; i<8; i++){
- const int level= block[n][s->idct_permutation[i<<3]];
- score0+= ABS(level);
- score1+= ABS(level - ac_val[i]);
+ const int level= block[n][s->dsp.idct_permutation[i<<3]];
+ block[n][s->dsp.idct_permutation[i<<3]]= level - ac_val[i];
ac_val1[i ]= level;
- ac_val1[i+8]= block[n][s->idct_permutation[i ]];
+ ac_val1[i+8]= block[n][s->dsp.idct_permutation[i ]];
}
}else{
/* different qscale, we must rescale */
for(i=1; i<8; i++){
- const int level= block[n][s->idct_permutation[i<<3]];
- score0+= ABS(level);
- score1+= ABS(level - ROUNDED_DIV(ac_val[i]*s->qscale_table[xy], s->qscale));
+ const int level= block[n][s->dsp.idct_permutation[i<<3]];
+ block[n][s->dsp.idct_permutation[i<<3]]= level - ROUNDED_DIV(ac_val[i]*qscale_table[xy], s->qscale);
ac_val1[i ]= level;
- ac_val1[i+8]= block[n][s->idct_permutation[i ]];
+ ac_val1[i+8]= block[n][s->dsp.idct_permutation[i ]];
}
}
+ st[n]= s->intra_v_scantable.permutated;
}
+
+ for(i=63; i>0; i--) //FIXME optimize
+ if(block[n][ st[n][i] ]) break;
+ s->block_last_index[n]= i;
+
+ score += get_block_rate(s, block[n], s->block_last_index[n], st[n]);
}
- return score0 > score1 ? 1 : 0;
+ return score < 0;
+}
+
+static inline void restore_ac_coeffs(MpegEncContext * s, DCTELEM block[6][64], int dir[6], uint8_t *st[6], int zigzag_last_index[6])
+{
+ int i, n;
+ memcpy(s->block_last_index, zigzag_last_index, sizeof(int)*6);
+
+ for(n=0; n<6; n++){
+ int16_t *ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
+
+ st[n]= s->intra_scantable.permutated;
+ if(dir[n]){
+ /* top prediction */
+ for(i=1; i<8; i++){
+ block[n][s->dsp.idct_permutation[i ]] = ac_val[i+8];
+ }
+ }else{
+ /* left prediction */
+ for(i=1; i<8; i++){
+ block[n][s->dsp.idct_permutation[i<<3]]= ac_val[i ];
+ }
+ }
+ }
}
/**
*/
void ff_clean_h263_qscales(MpegEncContext *s){
int i;
+ int8_t * const qscale_table= s->current_picture.qscale_table;
for(i=1; i<s->mb_num; i++){
- if(s->qscale_table[i] - s->qscale_table[i-1] >2)
- s->qscale_table[i]= s->qscale_table[i-1]+2;
+ if(qscale_table[ s->mb_index2xy[i] ] - qscale_table[ s->mb_index2xy[i-1] ] >2)
+ qscale_table[ s->mb_index2xy[i] ]= qscale_table[ s->mb_index2xy[i-1] ]+2;
}
for(i=s->mb_num-2; i>=0; i--){
- if(s->qscale_table[i] - s->qscale_table[i+1] >2)
- s->qscale_table[i]= s->qscale_table[i+1]+2;
+ if(qscale_table[ s->mb_index2xy[i] ] - qscale_table[ s->mb_index2xy[i+1] ] >2)
+ qscale_table[ s->mb_index2xy[i] ]= qscale_table[ s->mb_index2xy[i+1] ]+2;
}
}
*/
void ff_clean_mpeg4_qscales(MpegEncContext *s){
int i;
-
+ int8_t * const qscale_table= s->current_picture.qscale_table;
+
ff_clean_h263_qscales(s);
for(i=1; i<s->mb_num; i++){
- if(s->qscale_table[i] != s->qscale_table[i-1] && (s->mb_type[i]&MB_TYPE_INTER4V)){
- s->mb_type[i]&= ~MB_TYPE_INTER4V;
- s->mb_type[i]|= MB_TYPE_INTER;
+ int mb_xy= s->mb_index2xy[i];
+
+ if(qscale_table[mb_xy] != qscale_table[s->mb_index2xy[i-1]] && (s->mb_type[mb_xy]&MB_TYPE_INTER4V)){
+ s->mb_type[mb_xy]&= ~MB_TYPE_INTER4V;
+ s->mb_type[mb_xy]|= MB_TYPE_INTER;
}
}
for the actual adaptive quantization */
for(i=0; i<s->mb_num; i++){
- odd += s->qscale_table[i]&1;
+ int mb_xy= s->mb_index2xy[i];
+ odd += qscale_table[mb_xy]&1;
}
if(2*odd > s->mb_num) odd=1;
else odd=0;
for(i=0; i<s->mb_num; i++){
- if((s->qscale_table[i]&1) != odd)
- s->qscale_table[i]++;
- if(s->qscale_table[i] > 31)
- s->qscale_table[i]= 31;
+ int mb_xy= s->mb_index2xy[i];
+ if((qscale_table[mb_xy]&1) != odd)
+ qscale_table[mb_xy]++;
+ if(qscale_table[mb_xy] > 31)
+ qscale_table[mb_xy]= 31;
}
for(i=1; i<s->mb_num; i++){
- if(s->qscale_table[i] != s->qscale_table[i-1] && (s->mb_type[i]&MB_TYPE_DIRECT)){
- s->mb_type[i]&= ~MB_TYPE_DIRECT;
- s->mb_type[i]|= MB_TYPE_BIDIR;
+ int mb_xy= s->mb_index2xy[i];
+ if(qscale_table[mb_xy] != qscale_table[s->mb_index2xy[i-1]] && (s->mb_type[mb_xy]&MB_TYPE_DIRECT)){
+ s->mb_type[mb_xy]&= ~MB_TYPE_DIRECT;
+ s->mb_type[mb_xy]|= MB_TYPE_BIDIR;
+ }
+ }
+ }
+}
+
+#endif //CONFIG_ENCODERS
+/**
+ *
+ * @return the mb_type
+ */
+int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
+ const int mb_index= s->mb_x + s->mb_y*s->mb_stride;
+ const int colocated_mb_type= s->next_picture.mb_type[mb_index]; //FIXME or next?
+ int xy= s->block_index[0];
+ uint16_t time_pp= s->pp_time;
+ uint16_t time_pb= s->pb_time;
+ int i;
+
+ //FIXME avoid divides
+
+ if(IS_8X8(colocated_mb_type)){
+ s->mv_type = MV_TYPE_8X8;
+ for(i=0; i<4; i++){
+ xy= s->block_index[i];
+ s->mv[0][i][0] = s->motion_val[xy][0]*time_pb/time_pp + mx;
+ s->mv[0][i][1] = s->motion_val[xy][1]*time_pb/time_pp + my;
+ s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->motion_val[xy][0]
+ : s->motion_val[xy][0]*(time_pb - time_pp)/time_pp;
+ s->mv[1][i][1] = my ? s->mv[0][i][1] - s->motion_val[xy][1]
+ : s->motion_val[xy][1]*(time_pb - time_pp)/time_pp;
+ }
+ return MB_TYPE_DIRECT2 | MB_TYPE_8x8 | MB_TYPE_L0L1;
+ } else if(IS_INTERLACED(colocated_mb_type)){
+ s->mv_type = MV_TYPE_FIELD;
+ for(i=0; i<2; i++){
+ if(s->top_field_first){
+ time_pp= s->pp_field_time - s->field_select_table[mb_index][i] + i;
+ time_pb= s->pb_field_time - s->field_select_table[mb_index][i] + i;
+ }else{
+ time_pp= s->pp_field_time + s->field_select_table[mb_index][i] - i;
+ time_pb= s->pb_field_time + s->field_select_table[mb_index][i] - i;
}
+ s->mv[0][i][0] = s->field_mv_table[mb_index][i][0]*time_pb/time_pp + mx;
+ s->mv[0][i][1] = s->field_mv_table[mb_index][i][1]*time_pb/time_pp + my;
+ s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->field_mv_table[mb_index][i][0]
+ : s->field_mv_table[mb_index][i][0]*(time_pb - time_pp)/time_pp;
+ s->mv[1][i][1] = my ? s->mv[0][i][1] - s->field_mv_table[mb_index][i][1]
+ : s->field_mv_table[mb_index][i][1]*(time_pb - time_pp)/time_pp;
}
+ return MB_TYPE_DIRECT2 | MB_TYPE_16x8 | MB_TYPE_L0L1 | MB_TYPE_INTERLACED;
+ }else{
+ s->mv[0][0][0] = s->mv[0][1][0] = s->mv[0][2][0] = s->mv[0][3][0] = s->motion_val[xy][0]*time_pb/time_pp + mx;
+ s->mv[0][0][1] = s->mv[0][1][1] = s->mv[0][2][1] = s->mv[0][3][1] = s->motion_val[xy][1]*time_pb/time_pp + my;
+ s->mv[1][0][0] = s->mv[1][1][0] = s->mv[1][2][0] = s->mv[1][3][0] = mx ? s->mv[0][0][0] - s->motion_val[xy][0]
+ : s->motion_val[xy][0]*(time_pb - time_pp)/time_pp;
+ s->mv[1][0][1] = s->mv[1][1][1] = s->mv[1][2][1] = s->mv[1][3][1] = my ? s->mv[0][0][1] - s->motion_val[xy][1]
+ : s->motion_val[xy][1]*(time_pb - time_pp)/time_pp;
+ if((s->avctx->workaround_bugs & FF_BUG_DIRECT_BLOCKSIZE) || !s->quarter_sample)
+ s->mv_type= MV_TYPE_16X16;
+ else
+ s->mv_type= MV_TYPE_8X8;
+ return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1; //Note see prev line
+ }
+}
+
+void ff_h263_update_motion_val(MpegEncContext * s){
+ const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
+ //FIXME a lot of thet is only needed for !low_delay
+ const int wrap = s->block_wrap[0];
+ const int xy = s->block_index[0];
+
+ s->current_picture.mbskip_table[mb_xy]= s->mb_skiped;
+
+ if(s->mv_type != MV_TYPE_8X8){
+ int motion_x, motion_y;
+ if (s->mb_intra) {
+ motion_x = 0;
+ motion_y = 0;
+ } else if (s->mv_type == MV_TYPE_16X16) {
+ motion_x = s->mv[0][0][0];
+ motion_y = s->mv[0][0][1];
+ } else /*if (s->mv_type == MV_TYPE_FIELD)*/ {
+ int i;
+ motion_x = s->mv[0][0][0] + s->mv[0][1][0];
+ motion_y = s->mv[0][0][1] + s->mv[0][1][1];
+ motion_x = (motion_x>>1) | (motion_x&1);
+ for(i=0; i<2; i++){
+ s->field_mv_table[mb_xy][i][0]= s->mv[0][i][0];
+ s->field_mv_table[mb_xy][i][1]= s->mv[0][i][1];
+ s->field_select_table[mb_xy][i]= s->field_select[0][i];
+ }
+ }
+
+ /* no update if 8X8 because it has been done during parsing */
+ s->motion_val[xy][0] = motion_x;
+ s->motion_val[xy][1] = motion_y;
+ s->motion_val[xy + 1][0] = motion_x;
+ s->motion_val[xy + 1][1] = motion_y;
+ s->motion_val[xy + wrap][0] = motion_x;
+ s->motion_val[xy + wrap][1] = motion_y;
+ s->motion_val[xy + 1 + wrap][0] = motion_x;
+ s->motion_val[xy + 1 + wrap][1] = motion_y;
+ }
+
+ if(s->encoding){ //FIXME encoding MUST be cleaned up
+ if (s->mv_type == MV_TYPE_8X8)
+ s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_8x8;
+ else
+ s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_16x16;
}
}
#ifdef CONFIG_ENCODERS
+
+static inline int get_p_cbp(MpegEncContext * s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y){
+ int cbp, i;
+
+ if(s->flags & CODEC_FLAG_CBP_RD){
+ int best_cbpy_score= INT_MAX;
+ int best_cbpc_score= INT_MAX;
+ int cbpc, cbpy;
+ const int offset= (s->mv_type==MV_TYPE_16X16 ? 0 : 16) + (s->dquant ? 8 : 0);
+ const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
+
+ for(i=0; i<4; i++){
+ int score= inter_MCBPC_bits[i + offset] * lambda;
+ if(i&1) score += s->coded_score[5];
+ if(i&2) score += s->coded_score[4];
+
+ if(score < best_cbpc_score){
+ best_cbpc_score= score;
+ cbpc= i;
+ }
+ }
+
+ for(i=0; i<16; i++){
+ int score= cbpy_tab[i ^ 0xF][1] * lambda;
+ if(i&1) score += s->coded_score[3];
+ if(i&2) score += s->coded_score[2];
+ if(i&4) score += s->coded_score[1];
+ if(i&8) score += s->coded_score[0];
+
+ if(score < best_cbpy_score){
+ best_cbpy_score= score;
+ cbpy= i;
+ }
+ }
+ cbp= cbpc + 4*cbpy;
+ if ((motion_x | motion_y | s->dquant) == 0 && s->mv_type==MV_TYPE_16X16){
+ if(best_cbpy_score + best_cbpc_score + 2*lambda >= 0)
+ cbp= 0;
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0 && ((cbp >> (5 - i))&1)==0 ){
+ s->block_last_index[i]= -1;
+ memset(s->block[i], 0, sizeof(DCTELEM)*64);
+ }
+ }
+ }else{
+ cbp= 0;
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0)
+ cbp |= 1 << (5 - i);
+ }
+ }
+ return cbp;
+}
+
+static inline int get_b_cbp(MpegEncContext * s, DCTELEM block[6][64],
+ int motion_x, int motion_y, int mb_type){
+ int cbp=0, i;
+
+ if(s->flags & CODEC_FLAG_CBP_RD){
+ int score=0;
+ const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
+
+ for(i=0; i<6; i++){
+ if(s->coded_score[i] < 0){
+ score += s->coded_score[i];
+ cbp |= 1 << (5 - i);
+ }
+ }
+
+ if(cbp){
+ int zero_score= -6;
+ if ((motion_x | motion_y | s->dquant | mb_type) == 0){
+ zero_score-= 4; //2*MV + mb_type + cbp bit
+ }
+
+ zero_score*= lambda;
+ if(zero_score <= score){
+ cbp=0;
+ }
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0 && ((cbp >> (5 - i))&1)==0 ){
+ s->block_last_index[i]= -1;
+ memset(s->block[i], 0, sizeof(DCTELEM)*64);
+ }
+ }
+ }else{
+ for (i = 0; i < 6; i++) {
+ if (s->block_last_index[i] >= 0)
+ cbp |= 1 << (5 - i);
+ }
+ }
+ return cbp;
+}
+
void mpeg4_encode_mb(MpegEncContext * s,
DCTELEM block[6][64],
int motion_x, int motion_y)
{
- int cbpc, cbpy, i, pred_x, pred_y;
- int bits;
+ int cbpc, cbpy, pred_x, pred_y;
PutBitContext * const pb2 = s->data_partitioning ? &s->pb2 : &s->pb;
PutBitContext * const tex_pb = s->data_partitioning && s->pict_type!=B_TYPE ? &s->tex_pb : &s->pb;
PutBitContext * const dc_pb = s->data_partitioning && s->pict_type!=I_TYPE ? &s->pb2 : &s->pb;
// printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
if (!s->mb_intra) {
/* compute cbp */
- int cbp = 0;
- for (i = 0; i < 6; i++) {
- if (s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
- }
-
+ int i, cbp;
+
if(s->pict_type==B_TYPE){
static const int mb_type_table[8]= {-1, 2, 3, 1,-1,-1,-1, 0}; /* convert from mv_dir to type */
int mb_type= mb_type_table[s->mv_dir];
assert(mb_type>=0);
/* nothing to do if this MB was skiped in the next P Frame */
- if(s->mbskip_table[s->mb_y * s->mb_width + s->mb_x]){ //FIXME avoid DCT & ...
+ if(s->next_picture.mbskip_table[s->mb_y * s->mb_stride + s->mb_x]){ //FIXME avoid DCT & ...
s->skip_count++;
s->mv[0][0][0]=
s->mv[0][0][1]=
s->mv[1][0][1]= 0;
s->mv_dir= MV_DIR_FORWARD; //doesnt matter
s->qscale -= s->dquant;
+// s->mb_skiped=1;
+
return;
}
-
+
+ cbp= get_b_cbp(s, block, motion_x, motion_y, mb_type);
+
if ((cbp | motion_x | motion_y | mb_type) ==0) {
/* direct MB with MV={0,0} */
assert(s->dquant==0);
s->skip_count++;
return;
}
+
put_bits(&s->pb, 1, 0); /* mb coded modb1=0 */
put_bits(&s->pb, 1, cbp ? 0 : 1); /* modb2 */ //FIXME merge
put_bits(&s->pb, mb_type+1, 1); // this table is so simple that we dont need it :)
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->misc_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->misc_bits+= get_bits_diff(s);
}
switch(mb_type)
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->mv_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->mv_bits+= get_bits_diff(s);
}
/* encode each block */
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->p_tex_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->p_tex_bits+= get_bits_diff(s);
}
}else{ /* s->pict_type==B_TYPE */
+ cbp= get_p_cbp(s, block, motion_x, motion_y);
+
if ((cbp | motion_x | motion_y | s->dquant) == 0 && s->mv_type==MV_TYPE_16X16) {
/* check if the B frames can skip it too, as we must skip it if we skip here
why didnt they just compress the skip-mb bits instead of reusing them ?! */
if(y+16 > s->height) y= s->height-16;
offset= x + y*s->linesize;
- p_pic= s->new_picture[0] + offset;
+ p_pic= s->new_picture.data[0] + offset;
s->mb_skiped=1;
for(i=0; i<s->max_b_frames; i++){
uint8_t *b_pic;
int diff;
+ Picture *pic= s->reordered_input_picture[i+1];
- if(s->coded_order[i+1].pict_type!=B_TYPE) break;
+ if(pic==NULL || pic->pict_type!=B_TYPE) break;
- b_pic= s->coded_order[i+1].picture[0] + offset;
+ b_pic= pic->data[0] + offset + 16; //FIXME +16
diff= s->dsp.pix_abs16x16(p_pic, b_pic, s->linesize);
if(diff>s->qscale*70){ //FIXME check that 70 is optimal
s->mb_skiped=0;
s->last_bits++;
}
s->skip_count++;
+
return;
}
}
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->misc_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->misc_bits+= get_bits_diff(s);
}
/* motion vectors: 16x16 mode */
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->misc_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->misc_bits+= get_bits_diff(s);
}
for(i=0; i<4; i++){
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->mv_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->mv_bits+= get_bits_diff(s);
}
/* encode each block */
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->p_tex_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->p_tex_bits+= get_bits_diff(s);
}
s->f_count++;
}
int dc_diff[6]; //dc values with the dc prediction subtracted
int dir[6]; //prediction direction
int zigzag_last_index[6];
- UINT8 *scan_table[6];
+ uint8_t *scan_table[6];
+ int i;
for(i=0; i<6; i++){
const int level= block[i][0];
- UINT16 *dc_ptr;
+ uint16_t *dc_ptr;
dc_diff[i]= level - ff_mpeg4_pred_dc(s, i, &dc_ptr, &dir[i]);
if (i < 4) {
}
}
- s->ac_pred= decide_ac_pred(s, block, dir);
-
- if(s->ac_pred){
- for(i=0; i<6; i++){
- UINT8 *st;
- int last_index;
-
- mpeg4_inv_pred_ac(s, block[i], i, dir[i]);
- if (dir[i]==0) st = s->intra_v_scantable.permutated; /* left */
- else st = s->intra_h_scantable.permutated; /* top */
-
- for(last_index=63; last_index>=0; last_index--) //FIXME optimize
- if(block[i][st[last_index]]) break;
- zigzag_last_index[i]= s->block_last_index[i];
- s->block_last_index[i]= last_index;
- scan_table[i]= st;
- }
+ if(s->flags & CODEC_FLAG_AC_PRED){
+ s->ac_pred= decide_ac_pred(s, block, dir, scan_table, zigzag_last_index);
+ if(!s->ac_pred)
+ restore_ac_coeffs(s, block, dir, scan_table, zigzag_last_index);
}else{
for(i=0; i<6; i++)
scan_table[i]= s->intra_scantable.permutated;
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->misc_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->misc_bits+= get_bits_diff(s);
}
/* encode each block */
}
if(interleaved_stats){
- bits= get_bit_count(&s->pb);
- s->i_tex_bits+= bits - s->last_bits;
- s->last_bits=bits;
+ s->i_tex_bits+= get_bits_diff(s);
}
s->i_count++;
/* restore ac coeffs & last_index stuff if we messed them up with the prediction */
- if(s->ac_pred){
- for(i=0; i<6; i++){
- int j;
- INT16 *ac_val;
-
- ac_val = s->ac_val[0][0] + s->block_index[i] * 16;
-
- if(dir[i]){
- for(j=1; j<8; j++)
- block[i][s->idct_permutation[j ]]= ac_val[j+8];
- }else{
- for(j=1; j<8; j++)
- block[i][s->idct_permutation[j<<3]]= ac_val[j ];
- }
- s->block_last_index[i]= zigzag_last_index[i];
- }
- }
+ if(s->ac_pred)
+ restore_ac_coeffs(s, block, dir, scan_table, zigzag_last_index);
}
}
int motion_x, int motion_y)
{
int cbpc, cbpy, i, cbp, pred_x, pred_y;
- INT16 pred_dc;
- INT16 rec_intradc[6];
- UINT16 *dc_ptr[6];
+ int16_t pred_dc;
+ int16_t rec_intradc[6];
+ uint16_t *dc_ptr[6];
+ const int interleaved_stats= (s->flags&CODEC_FLAG_PASS1);
const int dquant_code[5]= {1,0,9,2,3};
//printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
if (!s->mb_intra) {
/* compute cbp */
- cbp = 0;
- for (i = 0; i < 6; i++) {
- if (s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
- }
+ cbp= get_p_cbp(s, block, motion_x, motion_y);
+
if ((cbp | motion_x | motion_y | s->dquant) == 0) {
/* skip macroblock */
put_bits(&s->pb, 1, 1);
+ if(interleaved_stats){
+ s->misc_bits++;
+ s->last_bits++;
+ }
return;
}
put_bits(&s->pb, 1, 0); /* mb coded */
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
+ if(interleaved_stats){
+ s->misc_bits+= get_bits_diff(s);
+ }
+
/* motion vectors: 16x16 mode only now */
h263_pred_motion(s, 0, &pred_x, &pred_y);
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
}
+
+ if(interleaved_stats){
+ s->mv_bits+= get_bits_diff(s);
+ }
} else {
int li = s->h263_aic ? 0 : 1;
for(i=0; i<6; i++) {
/* Predict DC */
if (s->h263_aic && s->mb_intra) {
- INT16 level = block[i][0];
+ int16_t level = block[i][0];
pred_dc = h263_pred_dc(s, i, &dc_ptr[i]);
level -= pred_dc;
put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
+
+ if(interleaved_stats){
+ s->misc_bits+= get_bits_diff(s);
+ }
}
for(i=0; i<6; i++) {
}
}
+
+ if(interleaved_stats){
+ if (!s->mb_intra) {
+ s->p_tex_bits+= get_bits_diff(s);
+ s->f_count++;
+ }else{
+ s->i_tex_bits+= get_bits_diff(s);
+ s->i_count++;
+ }
+ }
}
#endif
-static int h263_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr)
+static int h263_pred_dc(MpegEncContext * s, int n, uint16_t **dc_val_ptr)
{
int x, y, wrap, a, c, pred_dc, scale;
- INT16 *dc_val, *ac_val;
+ int16_t *dc_val, *ac_val;
/* find prediction */
if (n < 4) {
return pred_dc;
}
-
-void h263_pred_acdc(MpegEncContext * s, INT16 *block, int n)
+static void h263_pred_acdc(MpegEncContext * s, DCTELEM *block, int n)
{
int x, y, wrap, a, c, pred_dc, scale, i;
- INT16 *dc_val, *ac_val, *ac_val1;
+ int16_t *dc_val, *ac_val, *ac_val1;
/* find prediction */
if (n < 4) {
if (a != 1024) {
ac_val -= 16;
for(i=1;i<8;i++) {
- block[s->idct_permutation[i<<3]] += ac_val[i];
+ block[s->dsp.idct_permutation[i<<3]] += ac_val[i];
}
pred_dc = a;
}
if (c != 1024) {
ac_val -= 16 * wrap;
for(i=1;i<8;i++) {
- block[s->idct_permutation[i ]] += ac_val[i + 8];
+ block[s->dsp.idct_permutation[i ]] += ac_val[i + 8];
}
pred_dc = c;
}
/* left copy */
for(i=1;i<8;i++)
- ac_val1[i ] = block[s->idct_permutation[i<<3]];
+ ac_val1[i ] = block[s->dsp.idct_permutation[i<<3]];
/* top copy */
for(i=1;i<8;i++)
- ac_val1[8 + i] = block[s->idct_permutation[i ]];
+ ac_val1[8 + i] = block[s->dsp.idct_permutation[i ]];
}
-INT16 *h263_pred_motion(MpegEncContext * s, int block,
+int16_t *h263_pred_motion(MpegEncContext * s, int block,
int *px, int *py)
{
int xy, wrap;
- INT16 *A, *B, *C, *mot_val;
+ int16_t *A, *B, *C, *mot_val;
static const int off[4]= {2, 1, 1, -1};
wrap = s->block_wrap[0];
int mv;
if(mv_penalty==NULL)
- mv_penalty= av_mallocz( sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1) );
+ mv_penalty= av_mallocz( sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1) );
for(f_code=1; f_code<=MAX_FCODE; f_code++){
for(mv=-MAX_MV; mv<=MAX_MV; mv++){
}
#endif
+#ifdef CONFIG_ENCODERS
+
static void init_uni_dc_tab(void)
{
int level, uni_code, uni_len;
uni_len++;
}
}
- uni_DCtab_lum[level+256][0]= uni_code;
- uni_DCtab_lum[level+256][1]= uni_len;
+ uni_DCtab_lum_bits[level+256]= uni_code;
+ uni_DCtab_lum_len [level+256]= uni_len;
/* chrominance */
uni_code= DCtab_chrom[size][0];
uni_len++;
}
}
- uni_DCtab_chrom[level+256][0]= uni_code;
- uni_DCtab_chrom[level+256][1]= uni_len;
+ uni_DCtab_chrom_bits[level+256]= uni_code;
+ uni_DCtab_chrom_len [level+256]= uni_len;
}
}
+#endif //CONFIG_ENCODERS
+
#ifdef CONFIG_ENCODERS
-static void init_uni_mpeg4_rl_tab(RLTable *rl, UINT32 *bits_tab, UINT8 *len_tab){
+static void init_uni_mpeg4_rl_tab(RLTable *rl, uint32_t *bits_tab, uint8_t *len_tab){
int slevel, run, last;
assert(MAX_LEVEL >= 64);
init_mv_penalty_and_fcode(s);
}
- s->mv_penalty= mv_penalty; //FIXME exact table for msmpeg4 & h263p
+ s->me.mv_penalty= mv_penalty; //FIXME exact table for msmpeg4 & h263p
// use fcodes >1 only for mpeg4 & h263 & h263p FIXME
switch(s->codec_id){
s->fcode_tab= fcode_tab;
s->min_qcoeff= -2048;
s->max_qcoeff= 2047;
+ s->intra_ac_vlc_length = uni_mpeg4_intra_rl_len;
+ s->intra_ac_vlc_last_length= uni_mpeg4_intra_rl_len + 128*64;
+ s->inter_ac_vlc_length = uni_mpeg4_inter_rl_len;
+ s->inter_ac_vlc_last_length= uni_mpeg4_inter_rl_len + 128*64;
+ s->luma_dc_vlc_length= uni_DCtab_lum_len;
+ s->chroma_dc_vlc_length= uni_DCtab_chrom_len;
+ s->ac_esc_length= 7+2+1+6+1+12+1;
+
+ if(s->flags & CODEC_FLAG_GLOBAL_HEADER){
+
+ s->avctx->extradata= av_malloc(1024);
+ init_put_bits(&s->pb, s->avctx->extradata, 1024);
+
+ mpeg4_encode_visual_object_header(s);
+ mpeg4_encode_vol_header(s, 0, 0);
+
+// ff_mpeg4_stuffing(&s->pb); ?
+ flush_put_bits(&s->pb);
+ s->avctx->extradata_size= (get_bit_count(&s->pb)+7)>>3;
+ }
+
break;
case CODEC_ID_H263P:
s->fcode_tab= umv_fcode_tab;
- s->min_qcoeff= -128;
+ s->min_qcoeff= -127;
s->max_qcoeff= 127;
break;
//Note for mpeg4 & h263 the dc-scale table will be set per frame as needed later
+ case CODEC_ID_FLV1:
+ if (s->h263_flv > 1) {
+ s->min_qcoeff= -1023;
+ s->max_qcoeff= 1023;
+ } else {
+ s->min_qcoeff= -127;
+ s->max_qcoeff= 127;
+ }
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ break;
default: //nothing needed default table allready set in mpegvideo.c
- s->min_qcoeff= -128;
+ s->min_qcoeff= -127;
s->max_qcoeff= 127;
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
}
-
- if(s->mpeg_quant){
- s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
- s->inter_quant_bias= 0;
- }else{
- s->intra_quant_bias=0;
- s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
- }
}
+/**
+ * encodes a 8x8 block.
+ * @param block the 8x8 block
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ */
static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
{
int level, run, last, i, j, last_index, last_non_zero, sign, slevel, code;
rl = &rl_inter;
if (s->mb_intra && !s->h263_aic) {
/* DC coef */
- level = block[0];
+ level = block[0];
/* 255 cannot be represented, so we clamp */
if (level > 254) {
level = 254;
block[0] = 254;
}
/* 0 cannot be represented also */
- else if (!level) {
+ else if (level < 1) {
level = 1;
block[0] = 1;
}
- if (level == 128)
- put_bits(&s->pb, 8, 0xff);
- else
- put_bits(&s->pb, 8, level & 0xff);
- i = 1;
+ if (level == 128) //FIXME check rv10
+ put_bits(&s->pb, 8, 0xff);
+ else
+ put_bits(&s->pb, 8, level & 0xff);
+ i = 1;
} else {
- i = 0;
- if (s->h263_aic && s->mb_intra)
- rl = &rl_intra_aic;
+ i = 0;
+ if (s->h263_aic && s->mb_intra)
+ rl = &rl_intra_aic;
}
/* AC coefs */
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) {
+ if(s->h263_flv <= 1){
put_bits(&s->pb, 1, last);
put_bits(&s->pb, 6, run);
- put_bits(&s->pb, 8, slevel & 0xff);
+
+ assert(slevel != 0);
+
+ if(slevel < 128 && slevel > -128)
+ put_bits(&s->pb, 8, slevel & 0xff);
+ else{
+ put_bits(&s->pb, 8, 128);
+ put_bits(&s->pb, 5, slevel & 0x1f);
+ put_bits(&s->pb, 6, (slevel>>5)&0x3f);
+ }
+ }else{
+ if(slevel < 64 && slevel > -64) {
+ /* 7-bit level */
+ put_bits(&s->pb, 1, 0);
+ put_bits(&s->pb, 1, last);
+ put_bits(&s->pb, 6, run);
+
+ put_bits(&s->pb, 7, slevel & 0x7f);
+ } else {
+ /* 11-bit level */
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, 1, last);
+ put_bits(&s->pb, 6, run);
+
+ put_bits(&s->pb, 11, slevel & 0x7ff);
+ }
+ }
} else {
put_bits(&s->pb, 1, sign);
}
- last_non_zero = i;
- }
+ last_non_zero = i;
+ }
}
}
#endif
+#ifdef CONFIG_ENCODERS
+
/***************************************************/
/**
* add mpeg4 stuffing bits (01...1)
void ff_set_mpeg4_time(MpegEncContext * s, int picture_number){
int time_div, time_mod;
- if(s->pict_type==I_TYPE){ //we will encode a vol header
- s->time_increment_resolution= s->frame_rate/ff_gcd(s->frame_rate, FRAME_RATE_BASE);
- if(s->time_increment_resolution>=256*256) s->time_increment_resolution= 256*128;
-
- s->time_increment_bits = av_log2(s->time_increment_resolution - 1) + 1;
- }
-
- if(s->avctx->pts)
- s->time= (s->avctx->pts*s->time_increment_resolution + 500*1000)/(1000*1000);
+ if(s->current_picture.pts)
+ s->time= (s->current_picture.pts*s->time_increment_resolution + 500*1000)/(1000*1000);
else
- s->time= picture_number*(INT64)FRAME_RATE_BASE*s->time_increment_resolution/s->frame_rate;
+ s->time= av_rescale(picture_number*(int64_t)s->avctx->frame_rate_base, s->time_increment_resolution, s->avctx->frame_rate);
time_div= s->time/s->time_increment_resolution;
time_mod= s->time%s->time_increment_resolution;
}
}
-static void mpeg4_encode_vol_header(MpegEncContext * s)
+static void mpeg4_encode_gop_header(MpegEncContext * s){
+ int hours, minutes, seconds;
+
+ put_bits(&s->pb, 16, 0);
+ put_bits(&s->pb, 16, GOP_STARTCODE);
+
+ seconds= s->time/s->time_increment_resolution;
+ minutes= seconds/60; seconds %= 60;
+ hours= minutes/60; minutes %= 60;
+ hours%=24;
+
+ put_bits(&s->pb, 5, hours);
+ put_bits(&s->pb, 6, minutes);
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, 6, seconds);
+
+ put_bits(&s->pb, 1, 0); //closed gov == NO
+ put_bits(&s->pb, 1, 0); //broken link == NO
+
+ ff_mpeg4_stuffing(&s->pb);
+}
+
+static void mpeg4_encode_visual_object_header(MpegEncContext * s){
+ int profile_and_level_indication;
+ int vo_ver_id;
+
+ if(s->max_b_frames || s->quarter_sample){
+ profile_and_level_indication= 0xF1; // adv simple level 1
+ vo_ver_id= 5;
+ }else{
+ profile_and_level_indication= 0x01; // simple level 1
+ vo_ver_id= 1;
+ }
+ //FIXME levels
+
+ put_bits(&s->pb, 16, 0);
+ put_bits(&s->pb, 16, VOS_STARTCODE);
+
+ put_bits(&s->pb, 8, profile_and_level_indication);
+
+ put_bits(&s->pb, 16, 0);
+ put_bits(&s->pb, 16, VISUAL_OBJ_STARTCODE);
+
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, 4, vo_ver_id);
+ put_bits(&s->pb, 3, 1); //priority
+
+ put_bits(&s->pb, 4, 1); //visual obj type== video obj
+
+ put_bits(&s->pb, 1, 0); //video signal type == no clue //FIXME
+
+ ff_mpeg4_stuffing(&s->pb);
+}
+
+static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_number)
{
- int vo_ver_id=1; //must be 2 if we want GMC or q-pel
- char buf[255];
+ int vo_ver_id;
- s->vo_type= s->has_b_frames ? CORE_VO_TYPE : SIMPLE_VO_TYPE;
+ if(s->max_b_frames || s->quarter_sample){
+ vo_ver_id= 5;
+ s->vo_type= ADV_SIMPLE_VO_TYPE;
+ }else{
+ vo_ver_id= 1;
+ s->vo_type= SIMPLE_VO_TYPE;
+ }
put_bits(&s->pb, 16, 0);
- put_bits(&s->pb, 16, 0x100); /* video obj */
+ put_bits(&s->pb, 16, 0x100 + vo_number); /* video obj */
put_bits(&s->pb, 16, 0);
- put_bits(&s->pb, 16, 0x120); /* video obj layer */
+ put_bits(&s->pb, 16, 0x120 + vol_number); /* video obj layer */
put_bits(&s->pb, 1, 0); /* random access vol */
put_bits(&s->pb, 8, s->vo_type); /* video obj type indication */
put_bits(&s->pb, 1, 1); /* is obj layer id= yes */
put_bits(&s->pb, 4, vo_ver_id); /* is obj layer ver id */
put_bits(&s->pb, 3, 1); /* is obj layer priority */
- if(s->aspect_ratio_info)
- put_bits(&s->pb, 4, s->aspect_ratio_info);/* aspect ratio info */
- else
- put_bits(&s->pb, 4, 1); /* aspect ratio info= sqare pixel */
- if (s->aspect_ratio_info == FF_ASPECT_EXTENDED)
- {
- put_bits(&s->pb, 8, s->aspected_width);
- put_bits(&s->pb, 8, s->aspected_height);
+
+ aspect_to_info(s, s->avctx->sample_aspect_ratio);
+
+ put_bits(&s->pb, 4, s->aspect_ratio_info);/* aspect ratio info */
+ if (s->aspect_ratio_info == FF_ASPECT_EXTENDED){
+ put_bits(&s->pb, 8, s->avctx->sample_aspect_ratio.num);
+ put_bits(&s->pb, 8, s->avctx->sample_aspect_ratio.den);
}
if(s->low_delay){
put_bits(&s->pb, 1, 1); /* obmc disable */
if (vo_ver_id == 1) {
put_bits(&s->pb, 1, s->vol_sprite_usage=0); /* sprite enable */
- }else{ /* vo_ver_id == 2 */
+ }else{
put_bits(&s->pb, 2, s->vol_sprite_usage=0); /* sprite enable */
}
s->quant_precision=5;
put_bits(&s->pb, 1, 0); /* not 8 bit == false */
put_bits(&s->pb, 1, s->mpeg_quant); /* quant type= (0=h263 style)*/
- if(s->mpeg_quant) put_bits(&s->pb, 2, 0); /* no custom matrixes */
+
+ if(s->mpeg_quant){
+ ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix);
+ ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix);
+ }
if (vo_ver_id != 1)
- put_bits(&s->pb, 1, s->quarter_sample=0);
+ put_bits(&s->pb, 1, s->quarter_sample);
put_bits(&s->pb, 1, 1); /* complexity estimation disable */
s->resync_marker= s->rtp_mode;
put_bits(&s->pb, 1, s->resync_marker ? 0 : 1);/* resync marker disable */
ff_mpeg4_stuffing(&s->pb);
/* user data */
- if(!ff_bit_exact){
+ if(!(s->flags & CODEC_FLAG_BITEXACT)){
put_bits(&s->pb, 16, 0);
put_bits(&s->pb, 16, 0x1B2); /* user_data */
- sprintf(buf, "FFmpeg%sb%s", FFMPEG_VERSION, LIBAVCODEC_BUILD_STR);
- put_string(&s->pb, buf);
+ put_string(&s->pb, LIBAVCODEC_IDENT);
ff_mpeg4_stuffing(&s->pb);
}
}
int time_div, time_mod;
if(s->pict_type==I_TYPE){
- s->no_rounding=0;
- if(picture_number==0 || !s->strict_std_compliance)
- mpeg4_encode_vol_header(s);
+ if(!(s->flags&CODEC_FLAG_GLOBAL_HEADER)){
+ if(s->strict_std_compliance < 2) //HACK, the reference sw is buggy
+ mpeg4_encode_visual_object_header(s);
+ if(s->strict_std_compliance < 2 || picture_number==0) //HACK, the reference sw is buggy
+ mpeg4_encode_vol_header(s, 0, 0);
+ }
+ mpeg4_encode_gop_header(s);
}
s->partitioned_frame= s->data_partitioning && s->pict_type!=B_TYPE;
//printf("num:%d rate:%d base:%d\n", s->picture_number, s->frame_rate, FRAME_RATE_BASE);
put_bits(&s->pb, 16, 0); /* vop header */
- put_bits(&s->pb, 16, 0x1B6); /* vop header */
+ put_bits(&s->pb, 16, VOP_STARTCODE); /* vop header */
put_bits(&s->pb, 2, s->pict_type - 1); /* pict type: I = 0 , P = 1 */
time_div= s->time/s->time_increment_resolution;
put_bits(&s->pb, 1, 1); /* vop coded */
if ( s->pict_type == P_TYPE
|| (s->pict_type == S_TYPE && s->vol_sprite_usage==GMC_SPRITE)) {
- s->no_rounding ^= 1;
put_bits(&s->pb, 1, s->no_rounding); /* rounding type */
}
put_bits(&s->pb, 3, 0); /* intra dc VLC threshold */
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table; //FIXME add short header support
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
- s->h_edge_pos= s->width;
- s->v_edge_pos= s->height;
}
+#endif //CONFIG_ENCODERS
+
/**
* change qscale by given dquant and update qscale dependant variables.
*/
s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
}
-static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr)
+/**
+ * predicts the dc.
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ * @param dc_val_ptr a pointer to the dc_val entry for the current MB will be stored here
+ * @param dir_ptr pointer to an integer where the prediction direction will be stored
+ * @return the quantized predicted dc
+ */
+static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, uint16_t **dc_val_ptr, int *dir_ptr)
{
int a, b, c, wrap, pred, scale;
- UINT16 *dc_val;
- int dummy;
+ uint16_t *dc_val;
/* find prediction */
if (n < 4) {
} else {
scale = s->c_dc_scale;
}
+ if(IS_3IV1)
+ scale= 8;
+
wrap= s->block_wrap[n];
dc_val = s->dc_val[0] + s->block_index[n];
*dir_ptr = 0; /* left */
}
/* we assume pred is positive */
-#ifdef ARCH_X86
- asm volatile (
- "xorl %%edx, %%edx \n\t"
- "mul %%ecx \n\t"
- : "=d" (pred), "=a"(dummy)
- : "a" (pred + (scale >> 1)), "c" (inverse[scale])
- );
-#else
- pred = (pred + (scale >> 1)) / scale;
-#endif
+ pred = FASTDIV((pred + (scale >> 1)), scale);
/* prepare address for prediction update */
*dc_val_ptr = &dc_val[0];
return pred;
}
-void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
+/**
+ * predicts the ac.
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ * @param dir the ac prediction direction
+ */
+void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
int dir)
{
int i;
- INT16 *ac_val, *ac_val1;
+ int16_t *ac_val, *ac_val1;
+ int8_t * const qscale_table= s->current_picture.qscale_table;
/* find prediction */
ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
ac_val1 = ac_val;
if (s->ac_pred) {
if (dir == 0) {
- const int xy= s->mb_x-1 + s->mb_y*s->mb_width;
+ const int xy= s->mb_x-1 + s->mb_y*s->mb_stride;
/* left prediction */
ac_val -= 16;
- if(s->mb_x==0 || s->qscale == s->qscale_table[xy] || n==1 || n==3){
+ if(s->mb_x==0 || s->qscale == qscale_table[xy] || n==1 || n==3){
/* same qscale */
for(i=1;i<8;i++) {
- block[s->idct_permutation[i<<3]] += ac_val[i];
+ block[s->dsp.idct_permutation[i<<3]] += ac_val[i];
}
}else{
/* different qscale, we must rescale */
for(i=1;i<8;i++) {
- block[s->idct_permutation[i<<3]] += ROUNDED_DIV(ac_val[i]*s->qscale_table[xy], s->qscale);
+ block[s->dsp.idct_permutation[i<<3]] += ROUNDED_DIV(ac_val[i]*qscale_table[xy], s->qscale);
}
}
} else {
- const int xy= s->mb_x + s->mb_y*s->mb_width - s->mb_width;
+ const int xy= s->mb_x + s->mb_y*s->mb_stride - s->mb_stride;
/* top prediction */
ac_val -= 16 * s->block_wrap[n];
- if(s->mb_y==0 || s->qscale == s->qscale_table[xy] || n==2 || n==3){
+ if(s->mb_y==0 || s->qscale == qscale_table[xy] || n==2 || n==3){
/* same qscale */
for(i=1;i<8;i++) {
- block[s->idct_permutation[i]] += ac_val[i + 8];
+ block[s->dsp.idct_permutation[i]] += ac_val[i + 8];
}
}else{
/* different qscale, we must rescale */
for(i=1;i<8;i++) {
- block[s->idct_permutation[i]] += ROUNDED_DIV(ac_val[i + 8]*s->qscale_table[xy], s->qscale);
+ block[s->dsp.idct_permutation[i]] += ROUNDED_DIV(ac_val[i + 8]*qscale_table[xy], s->qscale);
}
}
}
}
/* left copy */
for(i=1;i<8;i++)
- ac_val1[i ] = block[s->idct_permutation[i<<3]];
+ ac_val1[i ] = block[s->dsp.idct_permutation[i<<3]];
/* top copy */
for(i=1;i<8;i++)
- ac_val1[8 + i] = block[s->idct_permutation[i ]];
+ ac_val1[8 + i] = block[s->dsp.idct_permutation[i ]];
}
-static void mpeg4_inv_pred_ac(MpegEncContext * s, INT16 *block, int n,
- int dir)
-{
- int i;
- INT16 *ac_val;
-
- /* find prediction */
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
-
- if (dir == 0) {
- const int xy= s->mb_x-1 + s->mb_y*s->mb_width;
- /* left prediction */
- ac_val -= 16;
- if(s->mb_x==0 || s->qscale == s->qscale_table[xy] || n==1 || n==3){
- /* same qscale */
- for(i=1;i<8;i++) {
- block[s->idct_permutation[i<<3]] -= ac_val[i];
- }
- }else{
- /* different qscale, we must rescale */
- for(i=1;i<8;i++) {
- block[s->idct_permutation[i<<3]] -= ROUNDED_DIV(ac_val[i]*s->qscale_table[xy], s->qscale);
- }
- }
- } else {
- const int xy= s->mb_x + s->mb_y*s->mb_width - s->mb_width;
- /* top prediction */
- ac_val -= 16 * s->block_wrap[n];
- if(s->mb_y==0 || s->qscale == s->qscale_table[xy] || n==2 || n==3){
- /* same qscale */
- for(i=1;i<8;i++) {
- block[s->idct_permutation[i]] -= ac_val[i + 8];
- }
- }else{
- /* different qscale, we must rescale */
- for(i=1;i<8;i++) {
- block[s->idct_permutation[i]] -= ROUNDED_DIV(ac_val[i + 8]*s->qscale_table[xy], s->qscale);
- }
- }
- }
-}
+#ifdef CONFIG_ENCODERS
+/**
+ * encodes the dc value.
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ */
static inline void mpeg4_encode_dc(PutBitContext * s, int level, int n)
{
#if 1
level+=256;
if (n < 4) {
/* luminance */
- put_bits(s, uni_DCtab_lum[level][1], uni_DCtab_lum[level][0]);
+ put_bits(s, uni_DCtab_lum_len[level], uni_DCtab_lum_bits[level]);
} else {
/* chrominance */
- put_bits(s, uni_DCtab_chrom[level][1], uni_DCtab_chrom[level][0]);
+ put_bits(s, uni_DCtab_chrom_len[level], uni_DCtab_chrom_bits[level]);
}
#else
int size, v;
}
#endif
}
-#ifdef CONFIG_ENCODERS
+
+/**
+ * encodes a 8x8 block
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ */
static inline void mpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n, int intra_dc,
- UINT8 *scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb)
+ uint8_t *scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb)
{
int i, last_non_zero;
#if 0 //variables for the outcommented version
int code, sign, last;
#endif
const RLTable *rl;
- UINT32 *bits_tab;
- UINT8 *len_tab;
+ uint32_t *bits_tab;
+ uint8_t *len_tab;
const int last_index = s->block_last_index[n];
if (s->mb_intra) { //Note gcc (3.2.1 at least) will optimize this away
}
#endif
}
+
+static inline int mpeg4_get_block_length(MpegEncContext * s, DCTELEM * block, int n, int intra_dc,
+ uint8_t *scan_table)
+{
+ int i, last_non_zero;
+ const RLTable *rl;
+ uint8_t *len_tab;
+ const int last_index = s->block_last_index[n];
+ int len=0;
+
+ if (s->mb_intra) { //Note gcc (3.2.1 at least) will optimize this away
+ /* mpeg4 based DC predictor */
+ //mpeg4_encode_dc(dc_pb, intra_dc, n); //FIXME
+ if(last_index<1) return len;
+ i = 1;
+ rl = &rl_intra;
+ len_tab = uni_mpeg4_intra_rl_len;
+ } else {
+ if(last_index<0) return 0;
+ i = 0;
+ rl = &rl_inter;
+ len_tab = uni_mpeg4_inter_rl_len;
+ }
+
+ /* AC coefs */
+ last_non_zero = i - 1;
+ for (; i < last_index; i++) {
+ int level = block[ scan_table[i] ];
+ if (level) {
+ int run = i - last_non_zero - 1;
+ level+=64;
+ if((level&(~127)) == 0){
+ const int index= UNI_MPEG4_ENC_INDEX(0, run, level);
+ len += len_tab[index];
+ }else{ //ESC3
+ len += 7+2+1+6+1+12+1;
+ }
+ last_non_zero = i;
+ }
+ }
+ /*if(i<=last_index)*/{
+ int level = block[ scan_table[i] ];
+ int run = i - last_non_zero - 1;
+ level+=64;
+ if((level&(~127)) == 0){
+ const int index= UNI_MPEG4_ENC_INDEX(1, run, level);
+ len += len_tab[index];
+ }else{ //ESC3
+ len += 7+2+1+6+1+12+1;
+ }
+ }
+
+ return len;
+}
+
#endif
static VLC sprite_trajectory;
static VLC mb_type_b_vlc;
-void init_rl(RLTable *rl)
-{
- INT8 max_level[MAX_RUN+1], max_run[MAX_LEVEL+1];
- UINT8 index_run[MAX_RUN+1];
- int last, run, level, start, end, i;
-
- /* compute max_level[], max_run[] and index_run[] */
- for(last=0;last<2;last++) {
- if (last == 0) {
- start = 0;
- end = rl->last;
- } else {
- start = rl->last;
- end = rl->n;
- }
-
- memset(max_level, 0, MAX_RUN + 1);
- memset(max_run, 0, MAX_LEVEL + 1);
- memset(index_run, rl->n, MAX_RUN + 1);
- for(i=start;i<end;i++) {
- run = rl->table_run[i];
- level = rl->table_level[i];
- if (index_run[run] == rl->n)
- index_run[run] = i;
- if (level > max_level[run])
- max_level[run] = level;
- if (run > max_run[level])
- max_run[level] = run;
- }
- rl->max_level[last] = av_malloc(MAX_RUN + 1);
- memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
- rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
- memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
- rl->index_run[last] = av_malloc(MAX_RUN + 1);
- memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
- }
-}
-
void init_vlc_rl(RLTable *rl)
{
int i, q;
if (!done) {
done = 1;
- init_vlc(&intra_MCBPC_vlc, INTRA_MCBPC_VLC_BITS, 8,
+ init_vlc(&intra_MCBPC_vlc, INTRA_MCBPC_VLC_BITS, 9,
intra_MCBPC_bits, 1, 1,
intra_MCBPC_code, 1, 1);
- init_vlc(&inter_MCBPC_vlc, INTER_MCBPC_VLC_BITS, 25,
+ init_vlc(&inter_MCBPC_vlc, INTER_MCBPC_VLC_BITS, 28,
inter_MCBPC_bits, 1, 1,
inter_MCBPC_code, 1, 1);
init_vlc(&cbpy_vlc, CBPY_VLC_BITS, 16,
&mvtab[0][0], 2, 1);
init_rl(&rl_inter);
init_rl(&rl_intra);
+ init_rl(&rvlc_rl_inter);
+ init_rl(&rvlc_rl_intra);
init_rl(&rl_intra_aic);
init_vlc_rl(&rl_inter);
init_vlc_rl(&rl_intra);
+ init_vlc_rl(&rvlc_rl_inter);
+ init_vlc_rl(&rvlc_rl_intra);
init_vlc_rl(&rl_intra_aic);
init_vlc(&dc_lum, DC_VLC_BITS, 10 /* 13 */,
&DCtab_lum[0][1], 2, 1,
/* We have a GBSC probably with GSTUFF */
skip_bits(&s->gb, 16); /* Drop the zeros */
- left= s->gb.size*8 - get_bits_count(&s->gb);
+ left= s->gb.size_in_bits - get_bits_count(&s->gb);
//MN: we must check the bits left or we might end in a infinite loop (or segfault)
for(;left>13; left--){
if(get_bits1(&s->gb)) break; /* Seek the '1' bit */
return -1;
s->mb_x= 0;
s->mb_y= s->gob_index* s->gob_number;
+ if(s->mb_y >= s->mb_height)
+ return -1;
#ifdef DEBUG
fprintf(stderr, "\nGN: %u GFID: %u Quant: %u\n", s->gob_number, gfid, s->qscale);
#endif
tab[i] = val;
}
+#ifdef CONFIG_ENCODERS
+
void ff_mpeg4_init_partitions(MpegEncContext *s)
{
- init_put_bits(&s->tex_pb, s->tex_pb_buffer, PB_BUFFER_SIZE, NULL, NULL);
- init_put_bits(&s->pb2 , s->pb2_buffer , PB_BUFFER_SIZE, NULL, NULL);
+ init_put_bits(&s->tex_pb, s->tex_pb_buffer, PB_BUFFER_SIZE);
+ init_put_bits(&s->pb2 , s->pb2_buffer , PB_BUFFER_SIZE);
}
void ff_mpeg4_merge_partitions(MpegEncContext *s)
s->last_bits= get_bit_count(&s->pb);
}
+#endif //CONFIG_ENCODERS
+
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s){
switch(s->pict_type){
case I_TYPE:
}
}
+#ifdef CONFIG_ENCODERS
+
void ff_mpeg4_encode_video_packet_header(MpegEncContext *s)
{
int mb_num_bits= av_log2(s->mb_num - 1) + 1;
put_bits(&s->pb, 1, 0); /* no HEC */
}
+#endif //CONFIG_ENCODERS
+
/**
* check if the next stuff is a resync marker or the end.
* @return 0 if not
return 0;
}
- if(bits_count + 8 >= s->gb.size*8){
+ if(bits_count + 8 >= s->gb.size_in_bits){
int v= show_bits(&s->gb, 8);
v|= 0x7F >> (7-(bits_count&7));
int header_extension=0, mb_num, len;
/* is there enough space left for a video packet + header */
- if( get_bits_count(&s->gb) > s->gb.size*8-20) return -1;
+ if( get_bits_count(&s->gb) > s->gb.size_in_bits-20) return -1;
for(len=0; len<32; len++){
if(get_bits1(&s->gb)) break;
fprintf(stderr, "illegal mb_num in video packet (%d %d) \n", mb_num, s->mb_num);
return -1;
}
+ if(s->pict_type == B_TYPE){
+ while(s->next_picture.mbskip_table[ s->mb_index2xy[ mb_num ] ]) mb_num++;
+ if(mb_num >= s->mb_num) return -1; // slice contains just skiped MBs which where allready decoded
+ }
+
s->mb_x= mb_num % s->mb_width;
s->mb_y= mb_num / s->mb_width;
#endif
/* clean AC */
- memset(s->ac_val[0] + l_xy, 0, (l_wrap*2+1)*16*sizeof(INT16));
- memset(s->ac_val[1] + c_xy, 0, (c_wrap +1)*16*sizeof(INT16));
- memset(s->ac_val[2] + c_xy, 0, (c_wrap +1)*16*sizeof(INT16));
+ memset(s->ac_val[0] + l_xy, 0, (l_wrap*2+1)*16*sizeof(int16_t));
+ memset(s->ac_val[1] + c_xy, 0, (c_wrap +1)*16*sizeof(int16_t));
+ memset(s->ac_val[2] + c_xy, 0, (c_wrap +1)*16*sizeof(int16_t));
/* clean MV */
// we cant clear the MVs as they might be needed by a b frame
-// memset(s->motion_val + l_xy, 0, (l_wrap*2+1)*2*sizeof(INT16));
-// memset(s->motion_val, 0, 2*sizeof(INT16)*(2 + s->mb_width*2)*(2 + s->mb_height*2));
+// memset(s->motion_val + l_xy, 0, (l_wrap*2+1)*2*sizeof(int16_t));
+// memset(s->motion_val, 0, 2*sizeof(int16_t)*(2 + s->mb_width*2)*(2 + s->mb_height*2));
s->last_mv[0][0][0]=
s->last_mv[0][0][1]=
s->last_mv[1][0][0]=
int ff_h263_resync(MpegEncContext *s){
int left, ret;
- if(s->codec_id==CODEC_ID_MPEG4)
+ if(s->codec_id==CODEC_ID_MPEG4){
skip_bits1(&s->gb);
-
- align_get_bits(&s->gb);
+ align_get_bits(&s->gb);
+ }
if(show_bits(&s->gb, 16)==0){
if(s->codec_id==CODEC_ID_MPEG4)
//ok, its not where its supposed to be ...
s->gb= s->last_resync_gb;
align_get_bits(&s->gb);
- left= s->gb.size*8 - get_bits_count(&s->gb);
+ left= s->gb.size_in_bits - get_bits_count(&s->gb);
for(;left>16+1+5+5; left-=8){
if(show_bits(&s->gb, 16)==0){
}
/**
+ * gets the average motion vector for a GMC MB.
* @param n either 0 for the x component or 1 for y
* @returns the average MV for a GMC MB
*/
v+= dx;
}
}
- sum /= 256;
- sum= RSHIFT(sum<<s->quarter_sample, a);
+ sum= RSHIFT(sum, a+8-s->quarter_sample);
}
if (sum < -len) sum= -len;
*/
static int mpeg4_decode_partition_a(MpegEncContext *s){
int mb_num;
- static const INT8 quant_tab[4] = { -1, -2, 1, 2 };
+ static const int8_t quant_tab[4] = { -1, -2, 1, 2 };
/* decode first partition */
mb_num=0;
for(; s->mb_y<s->mb_height; s->mb_y++){
ff_init_block_index(s);
for(; s->mb_x<s->mb_width; s->mb_x++){
- const int xy= s->mb_x + s->mb_y*s->mb_width;
+ const int xy= s->mb_x + s->mb_y*s->mb_stride;
int cbpc;
int dir=0;
if(s->mb_x == s->resync_mb_x && s->mb_y == s->resync_mb_y+1)
s->first_slice_line=0;
- if(s->mb_x==0) PRINT_MB_TYPE("\n");
-
if(s->pict_type==I_TYPE){
int i;
- if(show_bits(&s->gb, 19)==DC_MARKER){
+ if(show_bits_long(&s->gb, 19)==DC_MARKER){
return mb_num-1;
}
- PRINT_MB_TYPE("I");
- cbpc = get_vlc2(&s->gb, intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 1);
- if (cbpc < 0){
+ do{
+ cbpc = get_vlc2(&s->gb, intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 2);
+ if (cbpc < 0){
+ fprintf(stderr, "cbpc corrupted at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+ }while(cbpc == 8);
- fprintf(stderr, "cbpc corrupted at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
s->cbp_table[xy]= cbpc & 3;
- s->mb_type[xy]= MB_TYPE_INTRA;
+ s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
s->mb_intra = 1;
if(cbpc & 4) {
change_qscale(s, quant_tab[get_bits(&s->gb, 2)]);
}
- s->qscale_table[xy]= s->qscale;
+ s->current_picture.qscale_table[xy]= s->qscale;
s->mbintra_table[xy]= 1;
for(i=0; i<6; i++){
if(dc_pred_dir) dir|=1;
}
s->pred_dir_table[xy]= dir;
-
- s->error_status_table[xy]= AC_ERROR;
}else{ /* P/S_TYPE */
int mx, my, pred_x, pred_y, bits;
- INT16 * const mot_val= s->motion_val[s->block_index[0]];
+ int16_t * const mot_val= s->motion_val[s->block_index[0]];
const int stride= s->block_wrap[0]*2;
+// do{ //FIXME
bits= show_bits(&s->gb, 17);
if(bits==MOTION_MARKER){
return mb_num-1;
skip_bits1(&s->gb);
if(bits&0x10000){
/* skip mb */
- s->mb_type[xy]= MB_TYPE_SKIPED;
if(s->pict_type==S_TYPE && s->vol_sprite_usage==GMC_SPRITE){
- PRINT_MB_TYPE("G");
+ s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_GMC | MB_TYPE_L0;
mx= get_amv(s, 0);
my= get_amv(s, 1);
}else{
- PRINT_MB_TYPE("S");
+ s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
mx=my=0;
}
mot_val[0 ]= mot_val[2 ]=
if(s->mbintra_table[xy])
ff_clean_intra_table_entries(s);
-
- s->error_status_table[xy]= AC_ERROR;
continue;
}
+
cbpc = get_vlc2(&s->gb, inter_MCBPC_vlc.table, INTER_MCBPC_VLC_BITS, 2);
if (cbpc < 0){
fprintf(stderr, "cbpc corrupted at %d %d\n", s->mb_x, s->mb_y);
return -1;
}
- if (cbpc > 20)
- cbpc+=3;
- else if (cbpc == 20)
- fprintf(stderr, "Stuffing !");
+// }while(cbpc == 20);
+
s->cbp_table[xy]= cbpc&(8+3); //8 is dquant
s->mb_intra = ((cbpc & 4) != 0);
if(s->mb_intra){
- PRINT_MB_TYPE("I");
+ s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
s->mbintra_table[xy]= 1;
- s->mb_type[xy]= MB_TYPE_INTRA;
mot_val[0 ]= mot_val[2 ]=
mot_val[0+stride]= mot_val[2+stride]= 0;
mot_val[1 ]= mot_val[3 ]=
mot_val[1+stride]= mot_val[3+stride]= 0;
- s->error_status_table[xy]= DC_ERROR|AC_ERROR;
}else{
if(s->mbintra_table[xy])
ff_clean_intra_table_entries(s);
else s->mcsel= 0;
if ((cbpc & 16) == 0) {
- PRINT_MB_TYPE("P");
/* 16x16 motion prediction */
- s->mb_type[xy]= MB_TYPE_INTER;
h263_pred_motion(s, 0, &pred_x, &pred_y);
if(!s->mcsel){
my = h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
+ s->current_picture.mb_type[xy]= MB_TYPE_16x16 | MB_TYPE_L0;
} else {
mx = get_amv(s, 0);
my = get_amv(s, 1);
+ s->current_picture.mb_type[xy]= MB_TYPE_16x16 | MB_TYPE_GMC | MB_TYPE_L0;
}
mot_val[0 ]= mot_val[2 ] =
mot_val[1+stride]= mot_val[3+stride]= my;
} else {
int i;
- PRINT_MB_TYPE("4");
- s->mb_type[xy]= MB_TYPE_INTER4V;
+ s->current_picture.mb_type[xy]= MB_TYPE_8x8 | MB_TYPE_L0;
for(i=0;i<4;i++) {
- INT16 *mot_val= h263_pred_motion(s, i, &pred_x, &pred_y);
+ int16_t *mot_val= h263_pred_motion(s, i, &pred_x, &pred_y);
mx = h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
mot_val[1] = my;
}
}
- s->error_status_table[xy]= AC_ERROR;
}
}
}
*/
static int mpeg4_decode_partition_b(MpegEncContext *s, int mb_count){
int mb_num=0;
- static const INT8 quant_tab[4] = { -1, -2, 1, 2 };
+ static const int8_t quant_tab[4] = { -1, -2, 1, 2 };
s->mb_x= s->resync_mb_x;
s->first_slice_line=1;
for(s->mb_y= s->resync_mb_y; mb_num < mb_count; s->mb_y++){
ff_init_block_index(s);
for(; mb_num < mb_count && s->mb_x<s->mb_width; s->mb_x++){
- const int xy= s->mb_x + s->mb_y*s->mb_width;
+ const int xy= s->mb_x + s->mb_y*s->mb_stride;
mb_num++;
ff_update_block_index(s);
}
s->cbp_table[xy]|= cbpy<<2;
- s->pred_dir_table[xy]|= ac_pred<<7;
+ s->current_picture.mb_type[xy] |= ac_pred*MB_TYPE_ACPRED;
}else{ /* P || S_TYPE */
- if(s->mb_type[xy]&MB_TYPE_INTRA){
+ if(IS_INTRA(s->current_picture.mb_type[xy])){
int dir=0,i;
int ac_pred = get_bits1(&s->gb);
int cbpy = get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
if(s->cbp_table[xy] & 8) {
change_qscale(s, quant_tab[get_bits(&s->gb, 2)]);
}
- s->qscale_table[xy]= s->qscale;
+ s->current_picture.qscale_table[xy]= s->qscale;
for(i=0; i<6; i++){
int dc_pred_dir;
}
s->cbp_table[xy]&= 3; //remove dquant
s->cbp_table[xy]|= cbpy<<2;
- s->pred_dir_table[xy]= dir | (ac_pred<<7);
- s->error_status_table[xy]&= ~DC_ERROR;
- }else if(s->mb_type[xy]&MB_TYPE_SKIPED){
- s->qscale_table[xy]= s->qscale;
+ s->current_picture.mb_type[xy] |= ac_pred*MB_TYPE_ACPRED;
+ s->pred_dir_table[xy]= dir;
+ }else if(IS_SKIP(s->current_picture.mb_type[xy])){
+ s->current_picture.qscale_table[xy]= s->qscale;
s->cbp_table[xy]= 0;
}else{
int cbpy = get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
if(s->cbp_table[xy] & 8) {
change_qscale(s, quant_tab[get_bits(&s->gb, 2)]);
}
- s->qscale_table[xy]= s->qscale;
+ s->current_picture.qscale_table[xy]= s->qscale;
s->cbp_table[xy]&= 3; //remove dquant
s->cbp_table[xy]|= (cbpy^0xf)<<2;
int ff_mpeg4_decode_partitions(MpegEncContext *s)
{
int mb_num;
+ const int part_a_error= s->pict_type==I_TYPE ? (DC_ERROR|MV_ERROR) : MV_ERROR;
+ const int part_a_end = s->pict_type==I_TYPE ? (DC_END |MV_END) : MV_END;
mb_num= mpeg4_decode_partition_a(s);
- if(mb_num<0)
+ if(mb_num<0){
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, part_a_error);
return -1;
+ }
if(s->resync_mb_x + s->resync_mb_y*s->mb_width + mb_num > s->mb_num){
fprintf(stderr, "slice below monitor ...\n");
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, part_a_error);
return -1;
}
s->mb_num_left= mb_num;
if(s->pict_type==I_TYPE){
- if(get_bits(&s->gb, 19)!=DC_MARKER){
+ if(get_bits_long(&s->gb, 19)!=DC_MARKER){
fprintf(stderr, "marker missing after first I partition at %d %d\n", s->mb_x, s->mb_y);
return -1;
- }else
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width-1]|= MV_END|DC_END;
+ }
}else{
if(get_bits(&s->gb, 17)!=MOTION_MARKER){
fprintf(stderr, "marker missing after first P partition at %d %d\n", s->mb_x, s->mb_y);
return -1;
- }else
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width-1]|= MV_END;
+ }
}
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, part_a_end);
if( mpeg4_decode_partition_b(s, mb_num) < 0){
+ if(s->pict_type==P_TYPE)
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, DC_ERROR);
return -1;
+ }else{
+ if(s->pict_type==P_TYPE)
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, DC_END);
}
-
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width-1]|= DC_END;
return 0;
}
static int mpeg4_decode_partitioned_mb(MpegEncContext *s, DCTELEM block[6][64])
{
int cbp, mb_type;
- const int xy= s->mb_x + s->mb_y*s->mb_width;
+ const int xy= s->mb_x + s->mb_y*s->mb_stride;
- mb_type= s->mb_type[xy];
+ mb_type= s->current_picture.mb_type[xy];
cbp = s->cbp_table[xy];
- if(s->qscale_table[xy] != s->qscale){
- s->qscale= s->qscale_table[xy];
+ if(s->current_picture.qscale_table[xy] != s->qscale){
+ s->qscale= s->current_picture.qscale_table[xy];
s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
}
s->mv[0][i][0] = s->motion_val[ s->block_index[i] ][0];
s->mv[0][i][1] = s->motion_val[ s->block_index[i] ][1];
}
- s->mb_intra = mb_type&MB_TYPE_INTRA;
+ s->mb_intra = IS_INTRA(mb_type);
- if (mb_type&MB_TYPE_SKIPED) {
+ if (IS_SKIP(mb_type)) {
/* skip mb */
for(i=0;i<6;i++)
s->block_last_index[i] = -1;
s->mb_skiped = 1;
}
}else if(s->mb_intra){
- s->ac_pred = s->pred_dir_table[xy]>>7;
-
- /* decode each block */
- for (i = 0; i < 6; i++) {
- if(mpeg4_decode_block(s, block[i], i, cbp&32, 1) < 0){
- fprintf(stderr, "texture corrupted at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- cbp+=cbp;
- }
+ s->ac_pred = IS_ACPRED(s->current_picture.mb_type[xy]);
}else if(!s->mb_intra){
// s->mcsel= 0; //FIXME do we need to init that
s->mv_dir = MV_DIR_FORWARD;
- if (mb_type&MB_TYPE_INTER4V) {
+ if (IS_8X8(mb_type)) {
s->mv_type = MV_TYPE_8X8;
} else {
s->mv_type = MV_TYPE_16X16;
}
- /* decode each block */
- for (i = 0; i < 6; i++) {
- if(mpeg4_decode_block(s, block[i], i, cbp&32, 0) < 0){
- fprintf(stderr, "texture corrupted at %d %d (trying to continue with mc/dc only)\n", s->mb_x, s->mb_y);
- return -1;
- }
- cbp+=cbp;
- }
}
} else { /* I-Frame */
- int i;
s->mb_intra = 1;
- s->ac_pred = s->pred_dir_table[xy]>>7;
-
+ s->ac_pred = IS_ACPRED(s->current_picture.mb_type[xy]);
+ }
+
+ if (!IS_SKIP(mb_type)) {
+ int i;
/* decode each block */
for (i = 0; i < 6; i++) {
- if(mpeg4_decode_block(s, block[i], i, cbp&32, 1) < 0){
- fprintf(stderr, "texture corrupted at %d %d (trying to continue with dc only)\n", s->mb_x, s->mb_y);
+ if(mpeg4_decode_block(s, block[i], i, cbp&32, s->mb_intra, s->rvlc) < 0){
+ fprintf(stderr, "texture corrupted at %d %d %d\n", s->mb_x, s->mb_y, s->mb_intra);
return -1;
}
cbp+=cbp;
}
}
- s->error_status_table[xy]&= ~AC_ERROR;
-
/* per-MB end of slice check */
if(--s->mb_num_left <= 0){
-//printf("%06X %d\n", show_bits(&s->gb, 24), s->gb.size*8 - get_bits_count(&s->gb));
+//printf("%06X %d\n", show_bits(&s->gb, 24), s->gb.size_in_bits - get_bits_count(&s->gb));
if(mpeg4_is_resync(s))
return SLICE_END;
else
return SLICE_NOEND;
}else{
- if(s->cbp_table[xy+1] && mpeg4_is_resync(s))
- return SLICE_END;
- else
- return SLICE_OK;
+ if(mpeg4_is_resync(s)){
+ const int delta= s->mb_x + 1 == s->mb_width ? 2 : 1;
+ if(s->cbp_table[xy+delta])
+ return SLICE_END;
+ }
+ return SLICE_OK;
}
}
DCTELEM block[6][64])
{
int cbpc, cbpy, i, cbp, pred_x, pred_y, mx, my, dquant;
- INT16 *mot_val;
- static INT8 quant_tab[4] = { -1, -2, 1, 2 };
-
- s->error_status_table[s->mb_x + s->mb_y*s->mb_width]= 0;
-
- if(s->mb_x==0) PRINT_MB_TYPE("\n");
-
+ int16_t *mot_val;
+ static int8_t quant_tab[4] = { -1, -2, 1, 2 };
+ const int xy= s->mb_x + s->mb_y * s->mb_stride;
+
if (s->pict_type == P_TYPE || s->pict_type==S_TYPE) {
+ do{
if (get_bits1(&s->gb)) {
/* skip mb */
s->mb_intra = 0;
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
if(s->pict_type==S_TYPE && s->vol_sprite_usage==GMC_SPRITE){
- PRINT_MB_TYPE("G");
+ s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_GMC | MB_TYPE_16x16 | MB_TYPE_L0;
s->mcsel=1;
s->mv[0][0][0]= get_amv(s, 0);
s->mv[0][0][1]= get_amv(s, 1);
s->mb_skiped = 0;
}else{
- PRINT_MB_TYPE("S");
+ s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
s->mcsel=0;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
}
cbpc = get_vlc2(&s->gb, inter_MCBPC_vlc.table, INTER_MCBPC_VLC_BITS, 2);
//fprintf(stderr, "\tCBPC: %d", cbpc);
- if (cbpc < 0)
+ if (cbpc < 0){
+ fprintf(stderr, "cbpc damaged at %d %d\n", s->mb_x, s->mb_y);
return -1;
- if (cbpc > 20)
- cbpc+=3;
- else if (cbpc == 20)
- fprintf(stderr, "Stuffing !");
+ }
+ }while(cbpc == 20);
dquant = cbpc & 8;
s->mb_intra = ((cbpc & 4) != 0);
s->mv_dir = MV_DIR_FORWARD;
if ((cbpc & 16) == 0) {
if(s->mcsel){
- PRINT_MB_TYPE("G");
+ s->current_picture.mb_type[xy]= MB_TYPE_GMC | MB_TYPE_16x16 | MB_TYPE_L0;
/* 16x16 global motion prediction */
s->mv_type = MV_TYPE_16X16;
mx= get_amv(s, 0);
s->mv[0][0][0] = mx;
s->mv[0][0][1] = my;
}else if((!s->progressive_sequence) && get_bits1(&s->gb)){
- PRINT_MB_TYPE("f");
+ s->current_picture.mb_type[xy]= MB_TYPE_16x8 | MB_TYPE_L0 | MB_TYPE_INTERLACED;
/* 16x8 field motion prediction */
s->mv_type= MV_TYPE_FIELD;
s->mv[0][i][1] = my;
}
}else{
- PRINT_MB_TYPE("P");
+ s->current_picture.mb_type[xy]= MB_TYPE_16x16 | MB_TYPE_L0;
/* 16x16 motion prediction */
s->mv_type = MV_TYPE_16X16;
h263_pred_motion(s, 0, &pred_x, &pred_y);
- if (s->umvplus_dec)
+ if (s->umvplus)
mx = h263p_decode_umotion(s, pred_x);
else
mx = h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- if (s->umvplus_dec)
+ if (s->umvplus)
my = h263p_decode_umotion(s, pred_y);
else
my = h263_decode_motion(s, pred_y, s->f_code);
s->mv[0][0][0] = mx;
s->mv[0][0][1] = my;
- if (s->umvplus_dec && (mx - pred_x) == 1 && (my - pred_y) == 1)
+ if (s->umvplus && (mx - pred_x) == 1 && (my - pred_y) == 1)
skip_bits1(&s->gb); /* Bit stuffing to prevent PSC */
}
} else {
- PRINT_MB_TYPE("4");
+ s->current_picture.mb_type[xy]= MB_TYPE_8x8 | MB_TYPE_L0;
s->mv_type = MV_TYPE_8X8;
for(i=0;i<4;i++) {
mot_val = h263_pred_motion(s, i, &pred_x, &pred_y);
- if (s->umvplus_dec)
+ if (s->umvplus)
mx = h263p_decode_umotion(s, pred_x);
else
mx = h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- if (s->umvplus_dec)
+ if (s->umvplus)
my = h263p_decode_umotion(s, pred_y);
else
my = h263_decode_motion(s, pred_y, s->f_code);
return -1;
s->mv[0][i][0] = mx;
s->mv[0][i][1] = my;
- if (s->umvplus_dec && (mx - pred_x) == 1 && (my - pred_y) == 1)
+ if (s->umvplus && (mx - pred_x) == 1 && (my - pred_y) == 1)
skip_bits1(&s->gb); /* Bit stuffing to prevent PSC */
mot_val[0] = mx;
mot_val[1] = my;
int modb1; // first bit of modb
int modb2; // second bit of modb
int mb_type;
- uint16_t time_pp;
- uint16_t time_pb;
- int xy;
s->mb_intra = 0; //B-frames never contain intra blocks
s->mcsel=0; // ... true gmc blocks
}
/* if we skipped it in the future P Frame than skip it now too */
- s->mb_skiped= s->mbskip_table[s->mb_y * s->mb_width + s->mb_x]; // Note, skiptab=0 if last was GMC
+ s->mb_skiped= s->next_picture.mbskip_table[s->mb_y * s->mb_stride + s->mb_x]; // Note, skiptab=0 if last was GMC
if(s->mb_skiped){
/* skip mb */
s->mv[0][0][1] = 0;
s->mv[1][0][0] = 0;
s->mv[1][0][1] = 0;
- PRINT_MB_TYPE("s");
+ s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
goto end;
}
modb1= get_bits1(&s->gb);
if(modb1){
- mb_type=4; //like MB_TYPE_B_DIRECT but no vectors coded
+ mb_type= MB_TYPE_DIRECT2 | MB_TYPE_SKIP | MB_TYPE_L0L1; //like MB_TYPE_B_DIRECT but no vectors coded
cbp=0;
}else{
- int field_mv;
-
modb2= get_bits1(&s->gb);
mb_type= get_vlc2(&s->gb, mb_type_b_vlc.table, MB_TYPE_B_VLC_BITS, 1);
+ if(mb_type<0){
+ printf("illegal MB_type\n");
+ return -1;
+ }
+ mb_type= mb_type_b_map[ mb_type ];
if(modb2) cbp= 0;
else cbp= get_bits(&s->gb, 6);
- if (mb_type!=MB_TYPE_B_DIRECT && cbp) {
+ if ((!IS_DIRECT(mb_type)) && cbp) {
if(get_bits1(&s->gb)){
change_qscale(s, get_bits1(&s->gb)*4 - 2);
}
}
- field_mv=0;
if(!s->progressive_sequence){
if(cbp)
s->interlaced_dct= get_bits1(&s->gb);
- if(mb_type!=MB_TYPE_B_DIRECT && get_bits1(&s->gb)){
- field_mv=1;
+ if(!IS_DIRECT(mb_type) && get_bits1(&s->gb)){
+ mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;
+ mb_type &= ~MB_TYPE_16x16;
- if(mb_type!=MB_TYPE_B_BACKW){
+ if(USES_LIST(mb_type, 0)){
s->field_select[0][0]= get_bits1(&s->gb);
s->field_select[0][1]= get_bits1(&s->gb);
}
- if(mb_type!=MB_TYPE_B_FORW){
+ if(USES_LIST(mb_type, 1)){
s->field_select[1][0]= get_bits1(&s->gb);
s->field_select[1][1]= get_bits1(&s->gb);
}
}
s->mv_dir = 0;
- if(mb_type!=MB_TYPE_B_DIRECT && !field_mv){
+ if((mb_type & (MB_TYPE_DIRECT2|MB_TYPE_INTERLACED)) == 0){
s->mv_type= MV_TYPE_16X16;
- if(mb_type!=MB_TYPE_B_BACKW){
+
+ if(USES_LIST(mb_type, 0)){
s->mv_dir = MV_DIR_FORWARD;
mx = h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);
s->last_mv[0][1][1]= s->last_mv[0][0][1]= s->mv[0][0][1] = my;
}
- if(mb_type!=MB_TYPE_B_FORW){
+ if(USES_LIST(mb_type, 1)){
s->mv_dir |= MV_DIR_BACKWARD;
mx = h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);
s->last_mv[1][1][0]= s->last_mv[1][0][0]= s->mv[1][0][0] = mx;
s->last_mv[1][1][1]= s->last_mv[1][0][1]= s->mv[1][0][1] = my;
}
- if(mb_type!=MB_TYPE_B_DIRECT)
- PRINT_MB_TYPE(mb_type==MB_TYPE_B_FORW ? "F" : (mb_type==MB_TYPE_B_BACKW ? "B" : "T"));
- }else if(mb_type!=MB_TYPE_B_DIRECT){
+ }else if(!IS_DIRECT(mb_type)){
s->mv_type= MV_TYPE_FIELD;
- if(mb_type!=MB_TYPE_B_BACKW){
+ if(USES_LIST(mb_type, 0)){
s->mv_dir = MV_DIR_FORWARD;
for(i=0; i<2; i++){
}
}
- if(mb_type!=MB_TYPE_B_FORW){
+ if(USES_LIST(mb_type, 1)){
s->mv_dir |= MV_DIR_BACKWARD;
for(i=0; i<2; i++){
s->last_mv[1][i][1]= (s->mv[1][i][1] = my)*2;
}
}
- if(mb_type!=MB_TYPE_B_DIRECT)
- PRINT_MB_TYPE(mb_type==MB_TYPE_B_FORW ? "f" : (mb_type==MB_TYPE_B_BACKW ? "b" : "t"));
}
}
- if(mb_type==4 || mb_type==MB_TYPE_B_DIRECT){
- int mb_index= s->mb_x + s->mb_y*s->mb_width;
- int i;
-
- if(mb_type==4)
+ if(IS_DIRECT(mb_type)){
+ if(IS_SKIP(mb_type))
mx=my=0;
else{
mx = h263_decode_motion(s, 0, 1);
}
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
- xy= s->block_index[0];
- time_pp= s->pp_time;
- time_pb= s->pb_time;
-
- //FIXME avoid divides
- switch(s->co_located_type_table[mb_index]){
- case 0:
- s->mv_type= MV_TYPE_16X16;
- s->mv[0][0][0] = s->motion_val[xy][0]*time_pb/time_pp + mx;
- s->mv[0][0][1] = s->motion_val[xy][1]*time_pb/time_pp + my;
- s->mv[1][0][0] = mx ? s->mv[0][0][0] - s->motion_val[xy][0]
- : s->motion_val[xy][0]*(time_pb - time_pp)/time_pp;
- s->mv[1][0][1] = my ? s->mv[0][0][1] - s->motion_val[xy][1]
- : s->motion_val[xy][1]*(time_pb - time_pp)/time_pp;
- PRINT_MB_TYPE(mb_type==4 ? "D" : "S");
- break;
- case CO_LOCATED_TYPE_4MV:
- s->mv_type = MV_TYPE_8X8;
- for(i=0; i<4; i++){
- xy= s->block_index[i];
- s->mv[0][i][0] = s->motion_val[xy][0]*time_pb/time_pp + mx;
- s->mv[0][i][1] = s->motion_val[xy][1]*time_pb/time_pp + my;
- s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->motion_val[xy][0]
- : s->motion_val[xy][0]*(time_pb - time_pp)/time_pp;
- s->mv[1][i][1] = my ? s->mv[0][i][1] - s->motion_val[xy][1]
- : s->motion_val[xy][1]*(time_pb - time_pp)/time_pp;
- }
- PRINT_MB_TYPE("4");
- break;
- case CO_LOCATED_TYPE_FIELDMV:
- s->mv_type = MV_TYPE_FIELD;
- for(i=0; i<2; i++){
- if(s->top_field_first){
- time_pp= s->pp_field_time - s->field_select_table[mb_index][i] + i;
- time_pb= s->pb_field_time - s->field_select_table[mb_index][i] + i;
- }else{
- time_pp= s->pp_field_time + s->field_select_table[mb_index][i] - i;
- time_pb= s->pb_field_time + s->field_select_table[mb_index][i] - i;
- }
- s->mv[0][i][0] = s->field_mv_table[mb_index][i][0]*time_pb/time_pp + mx;
- s->mv[0][i][1] = s->field_mv_table[mb_index][i][1]*time_pb/time_pp + my;
- s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->field_mv_table[mb_index][i][0]
- : s->field_mv_table[mb_index][i][0]*(time_pb - time_pp)/time_pp;
- s->mv[1][i][1] = my ? s->mv[0][i][1] - s->field_mv_table[mb_index][i][1]
- : s->field_mv_table[mb_index][i][1]*(time_pb - time_pp)/time_pp;
- }
- PRINT_MB_TYPE("=");
- break;
- }
- }
-
- if(mb_type<0 || mb_type>4){
- printf("illegal MB_type\n");
- return -1;
+ mb_type |= ff_mpeg4_set_direct_mv(s, mx, my);
}
+ s->current_picture.mb_type[xy]= mb_type;
} else { /* I-Frame */
- cbpc = get_vlc2(&s->gb, intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 1);
- if (cbpc < 0)
- return -1;
+ do{
+ cbpc = get_vlc2(&s->gb, intra_MCBPC_vlc.table, INTRA_MCBPC_VLC_BITS, 2);
+ if (cbpc < 0){
+ fprintf(stderr, "I cbpc damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+ }while(cbpc == 8);
+
dquant = cbpc & 4;
s->mb_intra = 1;
intra:
- s->ac_pred = 0;
+ s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
if (s->h263_pred || s->h263_aic) {
s->ac_pred = get_bits1(&s->gb);
- if (s->ac_pred && s->h263_aic)
- s->h263_aic_dir = get_bits1(&s->gb);
- }
- PRINT_MB_TYPE(s->ac_pred ? "A" : "I");
+ if(s->ac_pred){
+ s->current_picture.mb_type[xy]= MB_TYPE_INTRA | MB_TYPE_ACPRED;
+
+ if (s->h263_aic)
+ s->h263_aic_dir = get_bits1(&s->gb);
+ }
+ }else
+ s->ac_pred = 0;
cbpy = get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
- if(cbpy<0) return -1;
+ if(cbpy<0){
+ fprintf(stderr, "I cbpy damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
cbp = (cbpc & 3) | (cbpy << 2);
if (dquant) {
change_qscale(s, quant_tab[get_bits(&s->gb, 2)]);
/* decode each block */
if (s->h263_pred) {
for (i = 0; i < 6; i++) {
- if (mpeg4_decode_block(s, block[i], i, cbp&32, 1) < 0)
+ if (mpeg4_decode_block(s, block[i], i, cbp&32, 1, 0) < 0)
return -1;
cbp+=cbp;
}
/* decode each block */
if (s->h263_pred) {
for (i = 0; i < 6; i++) {
- if (mpeg4_decode_block(s, block[i], i, cbp&32, 0) < 0)
+ if (mpeg4_decode_block(s, block[i], i, cbp&32, 0, 0) < 0)
return -1;
cbp+=cbp;
}
/* per-MB end of slice check */
if(s->codec_id==CODEC_ID_MPEG4){
if(mpeg4_is_resync(s)){
- if(s->pict_type==B_TYPE && s->mbskip_table[s->mb_y * s->mb_width + s->mb_x+1])
+ const int delta= s->mb_x + 1 == s->mb_width ? 2 : 1;
+ if(s->pict_type==B_TYPE && s->next_picture.mbskip_table[xy + delta])
return SLICE_OK;
return SLICE_END;
}
}else{
- if(get_bits_count(&s->gb) + 7 >= s->gb.size*8){
- int v= show_bits(&s->gb, 8) >> (((get_bits_count(&s->gb)-1)&7)+1);
- if(v==0)
- return SLICE_END;
- }else{
- if(show_bits(&s->gb, 16)==0)
- return SLICE_END;
+ int v= show_bits(&s->gb, 16);
+
+ if(get_bits_count(&s->gb) + 16 > s->gb.size_in_bits){
+ v>>= get_bits_count(&s->gb) + 16 - s->gb.size_in_bits;
}
+
+ if(v==0)
+ return SLICE_END;
}
return SLICE_OK;
{
int code, val, sign, shift, l;
code = get_vlc2(&s->gb, mv_vlc.table, MV_VLC_BITS, 2);
- if (code < 0)
- return 0xffff;
if (code == 0)
return pred;
+ if (code < 0)
+ return 0xffff;
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;
val += pred;
/* modulo decoding */
if (!s->h263_long_vectors) {
l = 1 << (f_code + 4);
- if (val < -l) {
- val += l<<1;
- } else if (val >= l) {
- val -= l<<1;
- }
+ val = ((val + l)&(l*2-1)) - l;
} else {
/* horrible h263 long vector mode */
if (pred < -31 && val < -63)
{
int code, level, i, j, last, run;
RLTable *rl = &rl_inter;
- const UINT8 *scan_table;
+ const uint8_t *scan_table;
scan_table = s->intra_scantable.permutated;
if (s->h263_aic && s->mb_intra) {
}
} else if (s->mb_intra) {
/* DC coef */
- if (s->h263_rv10 && s->rv10_version == 3 && s->pict_type == I_TYPE) {
+ if(s->h263_rv10){
+ if (s->rv10_version == 3 && s->pict_type == I_TYPE) {
int component, diff;
component = (n <= 3 ? 0 : n - 4 + 1);
level = s->last_dc[component];
} else {
s->rv10_first_dc_coded[component] = 1;
}
- } else {
+ } else {
+ level = get_bits(&s->gb, 8);
+ }
+ }else{
level = get_bits(&s->gb, 8);
+ if((level&0x7F) == 0){
+ fprintf(stderr, "illegal dc %d at %d %d\n", level, s->mb_x, s->mb_y);
+ return -1;
+ }
if (level == 255)
level = 128;
}
}
if (code == rl->n) {
/* escape */
- last = get_bits1(&s->gb);
- run = get_bits(&s->gb, 6);
- level = (INT8)get_bits(&s->gb, 8);
- if (s->h263_rv10 && level == -128) {
- /* XXX: should patch encoder too */
- level = get_bits(&s->gb, 12);
- level= (level + ((-1)<<11)) ^ ((-1)<<11); //sign extension
+ if (s->h263_flv > 1) {
+ int is11 = get_bits1(&s->gb);
+ last = get_bits1(&s->gb);
+ run = get_bits(&s->gb, 6);
+ if(is11){
+ level = get_sbits(&s->gb, 11);
+ } else {
+ level = get_sbits(&s->gb, 7);
+ }
+ } else {
+ last = get_bits1(&s->gb);
+ run = get_bits(&s->gb, 6);
+ level = (int8_t)get_bits(&s->gb, 8);
+ if(level == -128){
+ if (s->h263_rv10) {
+ /* XXX: should patch encoder too */
+ level = get_sbits(&s->gb, 12);
+ }else{
+ level = get_bits(&s->gb, 5);
+ level |= get_sbits(&s->gb, 6)<<5;
+ }
+ }
}
} else {
run = rl->table_run[code];
return 0;
}
+/**
+ * decodes the dc value.
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ * @param dir_ptr the prediction direction will be stored here
+ * @return the quantized dc
+ */
static inline int mpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr)
{
int level, pred, code;
- UINT16 *dc_val;
+ uint16_t *dc_val;
if (n < 4)
code = get_vlc2(&s->gb, dc_lum.table, DC_VLC_BITS, 1);
if (code == 0) {
level = 0;
} else {
- level = get_bits(&s->gb, code);
- if ((level >> (code - 1)) == 0) /* if MSB not set it is negative*/
- level = - (level ^ ((1 << code) - 1));
+ if(IS_3IV1){
+ if(code==1)
+ level= 2*get_bits1(&s->gb)-1;
+ else{
+ if(get_bits1(&s->gb))
+ level = get_bits(&s->gb, code-1) + (1<<(code-1));
+ else
+ level = -get_bits(&s->gb, code-1) - (1<<(code-1));
+ }
+ }else{
+ level = get_xbits(&s->gb, code);
+ }
+
if (code > 8){
if(get_bits1(&s->gb)==0){ /* marker */
if(s->error_resilience>=2){
} else {
*dc_val = level * s->c_dc_scale;
}
+ if(IS_3IV1)
+ *dc_val = level * 8;
+
if(s->error_resilience>=3){
if(*dc_val > 2048 + s->y_dc_scale + s->c_dc_scale){
fprintf(stderr, "dc overflow at %dx%d\n", s->mb_x, s->mb_y);
* @return <0 if an error occured
*/
static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
- int n, int coded, int intra)
+ int n, int coded, int intra, int rvlc)
{
int level, i, last, run;
int dc_pred_dir;
RLTable * rl;
RL_VLC_ELEM * rl_vlc;
- const UINT8 * scan_table;
+ const uint8_t * scan_table;
int qmul, qadd;
+ //Note intra & rvlc should be optimized away if this is inlined
+
if(intra) {
+ if(s->qscale < s->intra_dc_threshold){
/* DC coef */
if(s->partitioned_frame){
level = s->dc_val[0][ s->block_index[n] ];
- if(n<4) level= (level + (s->y_dc_scale>>1))/s->y_dc_scale; //FIXME optimizs
- else level= (level + (s->c_dc_scale>>1))/s->c_dc_scale;
- dc_pred_dir= (s->pred_dir_table[s->mb_x + s->mb_y*s->mb_width]<<n)&32;
+ if(n<4) level= FASTDIV((level + (s->y_dc_scale>>1)), s->y_dc_scale);
+ else level= FASTDIV((level + (s->c_dc_scale>>1)), s->c_dc_scale);
+ dc_pred_dir= (s->pred_dir_table[s->mb_x + s->mb_y*s->mb_stride]<<n)&32;
}else{
level = mpeg4_decode_dc(s, n, &dc_pred_dir);
if (level < 0)
}
block[0] = level;
i = 0;
+ }else{
+ i = -1;
+ }
if (!coded)
goto not_coded;
- rl = &rl_intra;
- rl_vlc = rl_intra.rl_vlc[0];
+
+ if(rvlc){
+ rl = &rvlc_rl_intra;
+ rl_vlc = rvlc_rl_intra.rl_vlc[0];
+ }else{
+ rl = &rl_intra;
+ rl_vlc = rl_intra.rl_vlc[0];
+ }
if (s->ac_pred) {
if (dc_pred_dir == 0)
scan_table = s->intra_v_scantable.permutated; /* left */
s->block_last_index[n] = i;
return 0;
}
- rl = &rl_inter;
+ if(rvlc) rl = &rvlc_rl_inter;
+ else rl = &rl_inter;
scan_table = s->intra_scantable.permutated;
if(s->mpeg_quant){
qmul=1;
qadd=0;
- rl_vlc = rl_inter.rl_vlc[0];
+ if(rvlc){
+ rl_vlc = rvlc_rl_inter.rl_vlc[0];
+ }else{
+ rl_vlc = rl_inter.rl_vlc[0];
+ }
}else{
qmul = s->qscale << 1;
qadd = (s->qscale - 1) | 1;
- rl_vlc = rl_inter.rl_vlc[s->qscale];
+ if(rvlc){
+ rl_vlc = rvlc_rl_inter.rl_vlc[s->qscale];
+ }else{
+ rl_vlc = rl_inter.rl_vlc[s->qscale];
+ }
}
}
{
UPDATE_CACHE(re, &s->gb);
GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2);
if (level==0) {
+ /* escape */
+ if(rvlc){
+ if(SHOW_UBITS(re, &s->gb, 1)==0){
+ fprintf(stderr, "1. marker bit missing in rvlc esc\n");
+ return -1;
+ }; SKIP_CACHE(re, &s->gb, 1);
+
+ last= SHOW_UBITS(re, &s->gb, 1); SKIP_CACHE(re, &s->gb, 1);
+ run= SHOW_UBITS(re, &s->gb, 6); LAST_SKIP_CACHE(re, &s->gb, 6);
+ SKIP_COUNTER(re, &s->gb, 1+1+6);
+ UPDATE_CACHE(re, &s->gb);
+
+ if(SHOW_UBITS(re, &s->gb, 1)==0){
+ fprintf(stderr, "2. marker bit missing in rvlc esc\n");
+ return -1;
+ }; SKIP_CACHE(re, &s->gb, 1);
+
+ level= SHOW_UBITS(re, &s->gb, 11); SKIP_CACHE(re, &s->gb, 11);
+
+ if(SHOW_UBITS(re, &s->gb, 5)!=0x10){
+ fprintf(stderr, "reverse esc missing\n");
+ return -1;
+ }; SKIP_CACHE(re, &s->gb, 5);
+
+ level= level * qmul + qadd;
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1); LAST_SKIP_CACHE(re, &s->gb, 1);
+ SKIP_COUNTER(re, &s->gb, 1+11+5+1);
+
+ i+= run + 1;
+ if(last) i+=192;
+ }else{
int cache;
cache= GET_CACHE(re, &s->gb);
- /* escape */
+
+ if(IS_3IV1)
+ cache ^= 0xC0000000;
+
if (cache&0x80000000) {
if (cache&0x40000000) {
/* third escape */
SKIP_COUNTER(re, &s->gb, 2+1+6);
UPDATE_CACHE(re, &s->gb);
- if(SHOW_UBITS(re, &s->gb, 1)==0){
- fprintf(stderr, "1. marker bit missing in 3. esc\n");
- return -1;
- }; SKIP_CACHE(re, &s->gb, 1);
-
- level= SHOW_SBITS(re, &s->gb, 12); SKIP_CACHE(re, &s->gb, 12);
+ if(IS_3IV1){
+ level= SHOW_SBITS(re, &s->gb, 12); LAST_SKIP_BITS(re, &s->gb, 12);
+ }else{
+ if(SHOW_UBITS(re, &s->gb, 1)==0){
+ fprintf(stderr, "1. marker bit missing in 3. esc\n");
+ return -1;
+ }; SKIP_CACHE(re, &s->gb, 1);
+
+ level= SHOW_SBITS(re, &s->gb, 12); SKIP_CACHE(re, &s->gb, 12);
+
+ if(SHOW_UBITS(re, &s->gb, 1)==0){
+ fprintf(stderr, "2. marker bit missing in 3. esc\n");
+ return -1;
+ }; LAST_SKIP_CACHE(re, &s->gb, 1);
+
+ SKIP_COUNTER(re, &s->gb, 1+12+1);
+ }
- if(SHOW_UBITS(re, &s->gb, 1)==0){
- fprintf(stderr, "2. marker bit missing in 3. esc\n");
- return -1;
- }; LAST_SKIP_CACHE(re, &s->gb, 1);
-
- SKIP_COUNTER(re, &s->gb, 1+12+1);
-
if(level*s->qscale>1024 || level*s->qscale<-1024){
fprintf(stderr, "|level| overflow in 3. esc, qp=%d\n", s->qscale);
return -1;
}
-#if 1
- {
+#if 0
+ if(s->error_resilience >= FF_ER_COMPLIANT){
const int abs_level= ABS(level);
- if(abs_level<=MAX_LEVEL && run<=MAX_RUN && ((s->workaround_bugs&FF_BUG_AC_VLC)==0)){
+ if(abs_level<=MAX_LEVEL && run<=MAX_RUN){
const int run1= run - rl->max_run[last][abs_level] - 1;
if(abs_level <= rl->max_level[last][run]){
fprintf(stderr, "illegal 3. esc, vlc encoding possible\n");
return -1;
}
- if(abs_level <= rl->max_level[last][run]*2){
- fprintf(stderr, "illegal 3. esc, esc 1 encoding possible\n");
- return -1;
- }
- if(run1 >= 0 && abs_level <= rl->max_level[last][run1]){
- fprintf(stderr, "illegal 3. esc, esc 2 encoding possible\n");
- return -1;
+ if(s->error_resilience > FF_ER_COMPLIANT){
+ if(abs_level <= rl->max_level[last][run]*2){
+ fprintf(stderr, "illegal 3. esc, esc 1 encoding possible\n");
+ return -1;
+ }
+ if(run1 >= 0 && abs_level <= rl->max_level[last][run1]){
+ fprintf(stderr, "illegal 3. esc, esc 2 encoding possible\n");
+ return -1;
+ }
}
}
}
level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
LAST_SKIP_BITS(re, &s->gb, 1);
}
+ }
} else {
i+= run;
level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
CLOSE_READER(re, &s->gb);
}
not_coded:
- if (s->mb_intra) {
+ if (intra) {
+ if(s->qscale >= s->intra_dc_threshold){
+ uint16_t *dc_val;
+ block[0] += ff_mpeg4_pred_dc(s, n, &dc_val, &dc_pred_dir);
+ if (n < 4) {
+ *dc_val = block[0] * s->y_dc_scale;
+ } else {
+ *dc_val = block[0] * s->c_dc_scale;
+ }
+
+ if(i == -1) i=0;
+ }
+
mpeg4_pred_ac(s, block, n, dc_pred_dir);
if (s->ac_pred) {
i = 63; /* XXX: not optimal */
/* most is hardcoded. should extend to handle all h263 streams */
int h263_decode_picture_header(MpegEncContext *s)
{
- int format, width, height;
+ int format, width, height, i;
+ uint32_t startcode;
+
+ align_get_bits(&s->gb);
+
+ startcode= get_bits(&s->gb, 22-8);
- /* picture start code */
- if (get_bits(&s->gb, 22) != 0x20) {
+ for(i= s->gb.size_in_bits - get_bits_count(&s->gb); i>24; i-=8) {
+ startcode = ((startcode << 8) | get_bits(&s->gb, 8)) & 0x003FFFFF;
+
+ if(startcode == 0x20)
+ break;
+ }
+
+ if (startcode != 0x20) {
fprintf(stderr, "Bad picture start code\n");
return -1;
}
if (!width)
return -1;
- s->width = width;
- s->height = height;
s->pict_type = I_TYPE + get_bits1(&s->gb);
s->unrestricted_mv = get_bits1(&s->gb);
}
s->qscale = get_bits(&s->gb, 5);
skip_bits1(&s->gb); /* Continuous Presence Multipoint mode: off */
+
+ s->width = width;
+ s->height = height;
} else {
int ufep;
format = get_bits(&s->gb, 3);
dprintf("ufep=1, format: %d\n", format);
skip_bits(&s->gb,1); /* Custom PCF */
- s->umvplus_dec = get_bits(&s->gb, 1); /* Unrestricted Motion Vector */
+ s->umvplus = get_bits(&s->gb, 1); /* Unrestricted Motion Vector */
+ s->unrestricted_mv = s->umvplus;
skip_bits1(&s->gb); /* Syntax-based Arithmetic Coding (SAC) */
if (get_bits1(&s->gb) != 0) {
s->mv_type = MV_TYPE_8X8; /* Advanced prediction mode */
s->h263_aic = 1;
}
- skip_bits(&s->gb, 7);
- /* these are the 7 bits: (in order of appearence */
- /* Deblocking Filter */
- /* Slice Structured */
- /* Reference Picture Selection */
- /* Independent Segment Decoding */
- /* Alternative Inter VLC */
- /* Modified Quantization */
- /* Prevent start code emulation */
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Deblocking Filter not supported\n");
+ }
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Slice Structured not supported\n");
+ }
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Reference Picture Selection not supported\n");
+ }
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Independent Segment Decoding not supported\n");
+ }
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Alternative Inter VLC not supported\n");
+ }
+ if (get_bits1(&s->gb) != 0) {
+ fprintf(stderr, "Modified Quantization not supported\n");
+ }
+
+ skip_bits(&s->gb, 1); /* Prevent start code emulation */
skip_bits(&s->gb, 3); /* Reserved */
} else if (ufep != 0) {
dprintf("\nH.263+ Custom picture: %dx%d\n",width,height);
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED) {
/* aspected dimensions */
- s->aspected_width = get_bits(&s->gb, 8);
- s->aspected_height = get_bits(&s->gb, 8);
+ s->avctx->sample_aspect_ratio.num= get_bits(&s->gb, 8);
+ s->avctx->sample_aspect_ratio.den= get_bits(&s->gb, 8);
+ }else{
+ s->avctx->sample_aspect_ratio= pixel_aspect[s->aspect_ratio_info];
}
} else {
width = h263_format[format][0];
return -1;
s->width = width;
s->height = height;
- if (s->umvplus_dec) {
- skip_bits1(&s->gb); /* Unlimited Unrestricted Motion Vectors Indicator (UUI) */
+ if (s->umvplus) {
+ if(get_bits1(&s->gb)==0) /* Unlimited Unrestricted Motion Vectors Indicator (UUI) */
+ skip_bits1(&s->gb);
}
}
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
}
+ if(s->avctx->debug&FF_DEBUG_PICT_INFO){
+ printf("qp:%d %c size:%d rnd:%d %s %s %s %s\n",
+ s->qscale, av_get_pict_type_char(s->pict_type),
+ s->gb.size_in_bits, 1-s->no_rounding,
+ s->mv_type == MV_TYPE_8X8 ? "ADV" : "",
+ s->umvplus ? "UMV" : "",
+ s->h263_long_vectors ? "LONG" : "",
+ s->h263_plus ? "+" : ""
+ );
+ }
+
+
return 0;
}
length= get_vlc(&s->gb, &sprite_trajectory);
if(length){
- x= get_bits(&s->gb, length);
-
- if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/
- x = - (x ^ ((1 << length) - 1));
+ x= get_xbits(&s->gb, length);
}
if(!(s->divx_version==500 && s->divx_build==413)) skip_bits1(&s->gb); /* marker bit */
length= get_vlc(&s->gb, &sprite_trajectory);
if(length){
- y=get_bits(&s->gb, length);
-
- if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/
- y = - (y ^ ((1 << length) - 1));
+ y=get_xbits(&s->gb, length);
}
skip_bits1(&s->gb); /* marker bit */
//printf("%d %d %d %d\n", x, y, i, s->sprite_warping_accuracy);
#endif
}
+static int mpeg4_decode_gop_header(MpegEncContext * s, GetBitContext *gb){
+ int hours, minutes, seconds;
+
+ hours= get_bits(gb, 5);
+ minutes= get_bits(gb, 6);
+ skip_bits1(gb);
+ seconds= get_bits(gb, 6);
+
+ s->time_base= seconds + 60*(minutes + 60*hours);
+
+ skip_bits1(gb);
+ skip_bits1(gb);
+
+ return 0;
+}
+
static int decode_vol_header(MpegEncContext *s, GetBitContext *gb){
int width, height, vo_ver_id;
//printf("vo type:%d\n",s->vo_type);
s->aspect_ratio_info= get_bits(gb, 4);
if(s->aspect_ratio_info == FF_ASPECT_EXTENDED){
- s->aspected_width = get_bits(gb, 8); // par_width
- s->aspected_height = get_bits(gb, 8); // par_height
+ s->avctx->sample_aspect_ratio.num= get_bits(gb, 8); // par_width
+ s->avctx->sample_aspect_ratio.den= get_bits(gb, 8); // par_height
+ }else{
+ s->avctx->sample_aspect_ratio= pixel_aspect[s->aspect_ratio_info];
}
if ((s->vol_control_parameters=get_bits1(gb))) { /* vol control parameter */
skip_bits(gb, 4); //video_object_layer_shape_extension
}
- skip_bits1(gb); /* marker */
+ check_marker(gb, "before time_increment_resolution");
s->time_increment_resolution = get_bits(gb, 16);
s->time_increment_bits = av_log2(s->time_increment_resolution - 1) + 1;
if (s->time_increment_bits < 1)
s->time_increment_bits = 1;
- skip_bits1(gb); /* marker */
+
+ check_marker(gb, "before fixed_vop_rate");
if (get_bits1(gb) != 0) { /* fixed_vop_rate */
skip_bits(gb, s->time_increment_bits);
}
s->progressive_sequence= get_bits1(gb)^1;
- if(!get_bits1(gb)) printf("OBMC not supported (very likely buggy encoder)\n"); /* OBMC Disable */
+ if(!get_bits1(gb) && (s->avctx->debug & FF_DEBUG_PICT_INFO))
+ printf("OBMC not supported (very likely buggy encoder)\n"); /* OBMC Disable */
if (vo_ver_id == 1) {
s->vol_sprite_usage = get_bits1(gb); /* vol_sprite_usage */
} else {
// FIXME a bunch of grayscale shape things
if((s->mpeg_quant=get_bits1(gb))){ /* vol_quant_type */
- int i, j, v;
+ int i, v;
/* load default matrixes */
for(i=0; i<64; i++){
- int j= s->idct_permutation[i];
+ int j= s->dsp.idct_permutation[i];
v= ff_mpeg4_default_intra_matrix[i];
s->intra_matrix[j]= v;
s->chroma_intra_matrix[j]= v;
/* load custom intra matrix */
if(get_bits1(gb)){
int last=0;
- for(i=0; i<64; i++){
+ for(i=0; i<64; i++){
+ int j;
v= get_bits(gb, 8);
if(v==0) break;
last= v;
- j= s->idct_permutation[ ff_zigzag_direct[i] ];
+ j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
s->intra_matrix[j]= v;
s->chroma_intra_matrix[j]= v;
}
/* replicate last value */
for(; i<64; i++){
- j= s->idct_permutation[ ff_zigzag_direct[i] ];
- s->intra_matrix[j]= v;
- s->chroma_intra_matrix[j]= v;
+ int j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
+ s->intra_matrix[j]= last;
+ s->chroma_intra_matrix[j]= last;
}
}
/* load custom non intra matrix */
if(get_bits1(gb)){
int last=0;
- for(i=0; i<64; i++){
+ for(i=0; i<64; i++){
+ int j;
v= get_bits(gb, 8);
if(v==0) break;
last= v;
- j= s->idct_permutation[ ff_zigzag_direct[i] ];
+ j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
s->inter_matrix[j]= v;
s->chroma_inter_matrix[j]= v;
}
/* replicate last value */
for(; i<64; i++){
- j= s->idct_permutation[ ff_zigzag_direct[i] ];
+ int j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
s->inter_matrix[j]= last;
s->chroma_inter_matrix[j]= last;
}
s->data_partitioning= get_bits1(gb);
if(s->data_partitioning){
s->rvlc= get_bits1(gb);
- if(s->rvlc){
- printf("reversible vlc not supported\n");
- }
}
if(vo_ver_id != 1) {
return 0;
}
+/**
+ * decodes the user data stuff in the header.
+ * allso inits divx/xvid/lavc_version/build
+ */
static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
char buf[256];
int i;
int e;
int ver, build, ver2, ver3;
+ char last;
buf[0]= show_bits(gb, 8);
for(i=1; i<256; i++){
skip_bits(gb, 8);
}
buf[255]=0;
-
+
/* divx detection */
- e=sscanf(buf, "DivX%dBuild%d", &ver, &build);
- if(e!=2)
- e=sscanf(buf, "DivX%db%d", &ver, &build);
- if(e==2){
+ e=sscanf(buf, "DivX%dBuild%d%c", &ver, &build, &last);
+ if(e<2)
+ e=sscanf(buf, "DivX%db%d%c", &ver, &build, &last);
+ if(e>=2){
s->divx_version= ver;
s->divx_build= build;
- if(s->picture_number==0){
- printf("This file was encoded with DivX%d Build%d\n", ver, build);
- }
+ s->divx_packed= e==3 && last=='p';
}
/* ffmpeg detection */
if(e==4){
s->ffmpeg_version= ver*256*256 + ver2*256 + ver3;
s->lavc_build= build;
- if(s->picture_number==0)
- printf("This file was encoded with libavcodec build %d\n", build);
}
/* xvid detection */
e=sscanf(buf, "XviD%d", &build);
if(e==1){
s->xvid_build= build;
- if(s->picture_number==0)
- printf("This file was encoded with XviD build %d\n", build);
}
//printf("User Data: %s\n", buf);
int time_incr, time_increment;
s->pict_type = get_bits(gb, 2) + I_TYPE; /* pict type: I = 0 , P = 1 */
- if(s->pict_type==B_TYPE && s->low_delay && s->vol_control_parameters==0){
+ if(s->pict_type==B_TYPE && s->low_delay && s->vol_control_parameters==0 && !(s->flags & CODEC_FLAG_LOW_DELAY)){
printf("low_delay flag set, but shouldnt, clearing it\n");
s->low_delay=0;
}
time_incr++;
check_marker(gb, "before time_increment");
- time_increment= get_bits(gb, s->time_increment_bits);
+
+ if(s->time_increment_bits==0){
+ printf("hmm, seems the headers arnt complete, trying to guess time_increment_bits\n");
+
+ for(s->time_increment_bits=1 ;s->time_increment_bits<16; s->time_increment_bits++){
+ if(show_bits(gb, s->time_increment_bits+1)&1) break;
+ }
+
+ printf("my guess is %d bits ;)\n",s->time_increment_bits);
+ }
+
+ if(IS_3IV1) time_increment= get_bits1(gb); //FIXME investigate further
+ else time_increment= get_bits(gb, s->time_increment_bits);
+
+// printf("%d %X\n", s->time_increment_bits, time_increment);
//printf(" type:%d modulo_time_base:%d increment:%d\n", s->pict_type, time_incr, time_increment);
if(s->pict_type!=B_TYPE){
s->last_time_base= s->time_base;
- ROUNDED_DIV(s->last_non_b_time - s->pp_time, s->t_frame))*2;
}
- s->avctx->pts= s->time*1000LL*1000LL / s->time_increment_resolution;
+ s->current_picture.pts= s->time*1000LL*1000LL / s->time_increment_resolution;
+ if(s->avctx->debug&FF_DEBUG_PTS)
+ printf("MPEG4 PTS: %f\n", s->current_picture.pts/(1000.0*1000.0));
+
+ check_marker(gb, "before vop_coded");
- if(check_marker(gb, "before vop_coded")==0 && s->picture_number==0){
- printf("hmm, seems the headers arnt complete, trying to guess time_increment_bits\n");
- for(s->time_increment_bits++ ;s->time_increment_bits<16; s->time_increment_bits++){
- if(get_bits1(gb)) break;
- }
- printf("my guess is %d bits ;)\n",s->time_increment_bits);
- }
/* vop coded */
if (get_bits1(gb) != 1){
printf("vop not coded\n");
//FIXME complexity estimation stuff
if (s->shape != BIN_ONLY_SHAPE) {
- int t;
- t=get_bits(gb, 3); /* intra dc VLC threshold */
-//printf("threshold %d\n", t);
+ s->intra_dc_threshold= mpeg4_dc_threshold[ get_bits(gb, 3) ];
if(!s->progressive_sequence){
s->top_field_first= get_bits1(gb);
s->alternate_scan= get_bits1(gb);
}
if(s->alternate_scan){
- ff_init_scantable(s, &s->inter_scantable , ff_alternate_vertical_scan);
- ff_init_scantable(s, &s->intra_scantable , ff_alternate_vertical_scan);
- ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_vertical_scan);
- ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
} else{
- ff_init_scantable(s, &s->inter_scantable , ff_zigzag_direct);
- ff_init_scantable(s, &s->intra_scantable , ff_zigzag_direct);
- ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_horizontal_scan);
- ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
+ ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
}
if(s->pict_type == S_TYPE && (s->vol_sprite_usage==STATIC_SPRITE || s->vol_sprite_usage==GMC_SPRITE)){
s->b_code = get_bits(gb, 3);
}else
s->b_code=1;
-#if 0
-printf("qp:%d fc:%d bc:%d type:%s size:%d pro:%d alt:%d top:%d qpel:%d part:%d resync:%d w:%d a:%d\n",
- s->qscale, s->f_code, s->b_code,
- s->pict_type == I_TYPE ? "I" : (s->pict_type == P_TYPE ? "P" : (s->pict_type == B_TYPE ? "B" : "S")),
- gb->size,s->progressive_sequence, s->alternate_scan, s->top_field_first,
- s->quarter_sample, s->data_partitioning, s->resync_marker, s->num_sprite_warping_points,
- s->sprite_warping_accuracy);
-#endif
+
+ if(s->avctx->debug&FF_DEBUG_PICT_INFO){
+ printf("qp:%d fc:%d,%d %s size:%d pro:%d alt:%d top:%d %spel part:%d resync:%d w:%d a:%d rnd:%d vot:%d%s dc:%d\n",
+ s->qscale, s->f_code, s->b_code,
+ s->pict_type == I_TYPE ? "I" : (s->pict_type == P_TYPE ? "P" : (s->pict_type == B_TYPE ? "B" : "S")),
+ gb->size_in_bits,s->progressive_sequence, s->alternate_scan, s->top_field_first,
+ s->quarter_sample ? "q" : "h", s->data_partitioning, s->resync_marker, s->num_sprite_warping_points,
+ s->sprite_warping_accuracy, 1-s->no_rounding, s->vo_type, s->vol_control_parameters ? " VOLC" : " ", s->intra_dc_threshold);
+ }
+
if(!s->scalability){
if (s->shape!=RECT_SHAPE && s->pict_type!=I_TYPE) {
skip_bits1(gb); // vop shape coding type
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table; //FIXME add short header support
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
- if(s->divx_version==0 || s->divx_version < 500){
+ if(s->workaround_bugs&FF_BUG_EDGE){
s->h_edge_pos= s->width;
s->v_edge_pos= s->height;
}
v = get_bits(gb, 8);
startcode = ((startcode << 8) | v) & 0xffffffff;
- if(get_bits_count(gb) >= gb->size*8){
- if(gb->size==1 && s->divx_version){
- printf("frame skip %d\n", gb->size);
+ if(get_bits_count(gb) >= gb->size_in_bits){
+ if(gb->size_in_bits==8 && s->divx_version){
+ printf("frame skip %d\n", gb->size_in_bits);
return FRAME_SKIPED; //divx bug
}else
return -1; //end of stream
if((startcode&0xFFFFFF00) != 0x100)
continue; //no startcode
- switch(startcode){
- case 0x120:
- decode_vol_header(s, gb);
- break;
- case 0x1b2:
+ if(s->avctx->debug&FF_DEBUG_STARTCODE){
+ printf("startcode: %3X ", startcode);
+ if (startcode<=0x11F) printf("Video Object Start");
+ else if(startcode<=0x12F) printf("Video Object Layer Start");
+ else if(startcode<=0x13F) printf("Reserved");
+ else if(startcode<=0x15F) printf("FGS bp start");
+ else if(startcode<=0x1AF) printf("Reserved");
+ else if(startcode==0x1B0) printf("Visual Object Seq Start");
+ else if(startcode==0x1B1) printf("Visual Object Seq End");
+ else if(startcode==0x1B2) printf("User Data");
+ else if(startcode==0x1B3) printf("Group of VOP start");
+ else if(startcode==0x1B4) printf("Video Session Error");
+ else if(startcode==0x1B5) printf("Visual Object Start");
+ else if(startcode==0x1B6) printf("Video Object Plane start");
+ else if(startcode==0x1B7) printf("slice start");
+ else if(startcode==0x1B8) printf("extension start");
+ else if(startcode==0x1B9) printf("fgs start");
+ else if(startcode==0x1BA) printf("FBA Object start");
+ else if(startcode==0x1BB) printf("FBA Object Plane start");
+ else if(startcode==0x1BC) printf("Mesh Object start");
+ else if(startcode==0x1BD) printf("Mesh Object Plane start");
+ else if(startcode==0x1BE) printf("Still Textutre Object start");
+ else if(startcode==0x1BF) printf("Textutre Spatial Layer start");
+ else if(startcode==0x1C0) printf("Textutre SNR Layer start");
+ else if(startcode==0x1C1) printf("Textutre Tile start");
+ else if(startcode==0x1C2) printf("Textutre Shape Layer start");
+ else if(startcode==0x1C3) printf("stuffing start");
+ else if(startcode<=0x1C5) printf("reserved");
+ else if(startcode<=0x1FF) printf("System start");
+ printf(" at %d\n", get_bits_count(gb));
+ }
+
+ if(startcode >= 0x120 && startcode <= 0x12F){
+ if(decode_vol_header(s, gb) < 0)
+ return -1;
+ }
+ else if(startcode == USER_DATA_STARTCODE){
decode_user_data(s, gb);
- break;
- case 0x1b6:
+ }
+ else if(startcode == GOP_STARTCODE){
+ mpeg4_decode_gop_header(s, gb);
+ }
+ else if(startcode == VOP_STARTCODE){
return decode_vop_header(s, gb);
- default:
-// printf("startcode %X found\n", startcode);
- break;
}
align_get_bits(gb);
int format;
/* picture header */
- if (get_bits(&s->gb, 22) != 0x20) {
+ if (get_bits_long(&s->gb, 22) != 0x20) {
fprintf(stderr, "Bad picture start code\n");
return -1;
}
return 0;
}
+int flv_h263_decode_picture_header(MpegEncContext *s)
+{
+ int format, width, height;
+
+ /* picture header */
+ if (get_bits_long(&s->gb, 17) != 1) {
+ fprintf(stderr, "Bad picture start code\n");
+ return -1;
+ }
+ format = get_bits(&s->gb, 5);
+ if (format != 0 && format != 1) {
+ fprintf(stderr, "Bad picture format\n");
+ return -1;
+ }
+ s->h263_flv = format+1;
+ s->picture_number = get_bits(&s->gb, 8); /* picture timestamp */
+ format = get_bits(&s->gb, 3);
+ switch (format) {
+ case 0:
+ width = get_bits(&s->gb, 8);
+ height = get_bits(&s->gb, 8);
+ break;
+ case 1:
+ width = get_bits(&s->gb, 16);
+ height = get_bits(&s->gb, 16);
+ break;
+ case 2:
+ width = 352;
+ height = 288;
+ break;
+ case 3:
+ width = 176;
+ height = 144;
+ break;
+ case 4:
+ width = 128;
+ height = 96;
+ break;
+ case 5:
+ width = 320;
+ height = 240;
+ break;
+ case 6:
+ width = 160;
+ height = 120;
+ break;
+ default:
+ width = height = 0;
+ break;
+ }
+ if ((width == 0) || (height == 0))
+ return -1;
+ s->width = width;
+ s->height = height;
+
+ s->pict_type = I_TYPE + get_bits(&s->gb, 2);
+ if (s->pict_type > P_TYPE)
+ s->pict_type = P_TYPE;
+ skip_bits1(&s->gb); /* deblocking flag */
+ s->qscale = get_bits(&s->gb, 5);
+
+ s->h263_plus = 0;
+
+ s->unrestricted_mv = 1;
+ s->h263_long_vectors = 0;
+
+ /* PEI */
+ while (get_bits1(&s->gb) != 0) {
+ skip_bits(&s->gb, 8);
+ }
+ s->f_code = 1;
+
+ if(s->avctx->debug & FF_DEBUG_PICT_INFO){
+ printf("%c esc_type:%d, qp:%d num:%d\n",
+ av_get_pict_type_char(s->pict_type), s->h263_flv-1, s->qscale, s->picture_number);
+ }
+
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+
+ return 0;
+}
projects / ffmpeg / blobdiff