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mpeg4 header parser clenup (needed for parsing of VOL header in avctx->extradata)

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Originally committed as revision 1032 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2002-10-14 12:21:54 +00:00
parent 26893f6bd4
commit b704e7420b
4 changed files with 349 additions and 322 deletions
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11
libavcodec/h263dec.c
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@@ -40,8 +40,6 @@ static inline long long rdtsc()
}
#endif
const UINT16 ff_mpeg4_resync_prefix[8];
static int h263_decode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
@@ -313,7 +311,14 @@ uint64_t time= rdtsc();
if (s->h263_msmpeg4) {
ret = msmpeg4_decode_picture_header(s);
} else if (s->h263_pred) {
ret = mpeg4_decode_picture_header(s);
if(s->avctx->extradata_size && s->picture_number==0){
GetBitContext gb;
init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size);
ret = ff_mpeg4_decode_picture_header(s, &gb);
}
ret = ff_mpeg4_decode_picture_header(s, &s->gb);
s->has_b_frames= !s->low_delay;
} else if (s->h263_intel) {
ret = intel_h263_decode_picture_header(s);