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fixing motion estimation with h263p hopefully

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Originally committed as revision 355 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-03-23 20:21:33 +00:00
parent 098eefe183
commit 9d2a035529
2 changed files with 18 additions and 6 deletions
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13
libavcodec/h263.c
View File

@ -51,6 +51,7 @@ extern UINT32 inverse[256];
static UINT16 mv_penalty[MAX_FCODE][MAX_MV*2+1];
static UINT8 fcode_tab[MAX_MV*2+1];
static UINT8 umv_fcode_tab[MAX_MV*2+1];
int h263_get_picture_format(int width, int height)
{
@ -690,12 +691,15 @@ static void init_mv_penalty_and_fcode(MpegEncContext *s)
}
}
for(f_code=MAX_FCODE; f_code>0; f_code--){
for(mv=-(16<<f_code); mv<(16<<f_code); mv++){
fcode_tab[mv+MAX_MV]= f_code;
}
}
for(mv=0; mv<MAX_MV*2+1; mv++){
umv_fcode_tab[mv]= 1;
}
}
void h263_encode_init(MpegEncContext *s)
@ -709,10 +713,11 @@ void h263_encode_init(MpegEncContext *s)
init_mv_penalty_and_fcode(s);
}
s->mv_penalty= mv_penalty;
s->mv_penalty= mv_penalty; //FIXME exact table for msmpeg4 & h263p
// use fcodes >1 only for mpeg4&h263 FIXME
if(!s->h263_msmpeg4) s->fcode_tab= fcode_tab;
// use fcodes >1 only for mpeg4 & h263 & h263p FIXME
if(s->h263_plus) s->fcode_tab= umv_fcode_tab;
else if(s->h263_pred) s->fcode_tab= fcode_tab;
}
static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)

11
libavcodec/mpegvideo.c
View File

@ -381,6 +381,9 @@ int MPV_encode_init(AVCodecContext *avctx)
else if (s->out_format == FMT_MPEG1)
mpeg1_encode_init(s);
/* dont use mv_penalty table for crap MV as it would be confused */
if(s->full_search<4) s->mv_penalty= default_mv_penalty;
s->encoding = 1;
/* init */
@ -1126,8 +1129,8 @@ static void encode_picture(MpegEncContext *s, int picture_number)
}
}
/* find best f_code */
if(s->pict_type==P_TYPE){
/* find best f_code for ME which do unlimited searches */
if(s->pict_type==P_TYPE && s->full_search>3){
int mv_num[8];
int i;
int loose=0;
@ -1149,6 +1152,10 @@ static void encode_picture(MpegEncContext *s, int picture_number)
if(loose > 10) break; //FIXME this is pretty ineffective
}
s->f_code= i;
/* for(i=0; i<=MAX_FCODE; i++){
printf("%d ", mv_num[i]);
}
printf("\n");*/
}else{
s->f_code= 1;
}