int ff_wmv2_decode_picture_header(MpegEncContext * s)
{
Wmv2Context * const w= (Wmv2Context*)s;
int code;
#if 0
{
int i;
for(i=0; i<s->gb.size*8; i++)
printf("%d", get_bits1(&s->gb));
// get_bits1(&s->gb);
printf("END\n");
return -1;
}
#endif
if(s->picture_number==0)
decode_ext_header(w);
s->pict_type = get_bits1(&s->gb) + 1;
if(s->pict_type == FF_I_TYPE){
code = get_bits(&s->gb, 7);
av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
}
s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
if(s->qscale <= 0)
return -1;
return 0;
}
int ff_wmv2_decode_picture_header(MpegEncContext *s)
{
Wmv2Context *const w = (Wmv2Context *) s;
int code;
if (s->picture_number == 0)
decode_ext_header(w);
s->pict_type = get_bits1(&s->gb) + 1;
if (s->pict_type == AV_PICTURE_TYPE_I) {
code = get_bits(&s->gb, 7);
av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
}
s->chroma_qscale = s->qscale = get_bits(&s->gb, 5);
if (s->qscale <= 0)
return AVERROR_INVALIDDATA;
if (s->pict_type != AV_PICTURE_TYPE_I && show_bits(&s->gb, 1)) {
GetBitContext gb = s->gb;
int skip_type = get_bits(&gb, 2);
int run = skip_type == SKIP_TYPE_COL ? s->mb_width : s->mb_height;
while (run > 0) {
int block = FFMIN(run, 25);
if (get_bits(&gb, block) + 1 != 1<<block)
break;
run -= block;
}
if (!run)
return FRAME_SKIPPED;
}
return 0;
}
int ff_wmv2_decode_picture_header(MpegEncContext * s)
{
Wmv2Context * const w= (Wmv2Context*)s;
int code;
if(s->picture_number==0)
decode_ext_header(w);
s->pict_type = get_bits1(&s->gb) + 1;
if(s->pict_type == AV_PICTURE_TYPE_I){
code = get_bits(&s->gb, 7);
av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
}
s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
if(s->qscale <= 0)
return -1;
return 0;
}
