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mpeg4videodec: Parse newpred headers

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This is untested due to lack of a non broken file using new pred

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-08-11 17:35:30 +02:00
parent 06137a496b
commit 8e119a22c4
1 changed files with 16 additions and 1 deletions
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17
libavcodec/mpeg4videodec.c
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@ -356,6 +356,17 @@ static int mpeg4_decode_sprite_trajectory(MpegEncContext * s, GetBitContext *gb)
return 0;
}
static int decode_new_pred(MpegEncContext *s, GetBitContext *gb){
int len = FFMIN(s->time_increment_bits + 3, 15);
get_bits(gb, len);
if (get_bits1(gb))
get_bits(gb, len);
check_marker(gb, "after new_pred");
return 0;
}
/**
* Decode the next video packet.
* @return <0 if something went wrong
@ -438,7 +449,8 @@ int ff_mpeg4_decode_video_packet_header(MpegEncContext *s)
}
}
}
//FIXME new-pred stuff
if (s->new_pred)
decode_new_pred(s, &s->gb);
return 0;
}
@ -2024,6 +2036,9 @@ static int decode_vop_header(MpegEncContext *s, GetBitContext *gb){
av_log(s->avctx, AV_LOG_ERROR, "vop not coded\n");
return FRAME_SKIPPED;
}
if (s->new_pred)
decode_new_pred(s, gb);
if (s->shape != BIN_ONLY_SHAPE && ( s->pict_type == AV_PICTURE_TYPE_P
|| (s->pict_type == AV_PICTURE_TYPE_S && s->vol_sprite_usage==GMC_SPRITE))) {
/* rounding type for motion estimation */