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h264_mp4toannexb_bsf: account for consecutive IDR pictures.

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If there are consecutive IDR pictures, then SPS/PPS should be prepended
to all of them, not only the first one.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Benoit Fouet
2014-07-31 15:32:14 +02:00
committed by Michael Niedermayer
parent dd200c56c0
commit bf428bb314
1 changed files with 5 additions and 0 deletions
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5
libavcodec/h264_mp4toannexb_bsf.c
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@@ -179,6 +179,11 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
if (ctx->first_idr && (unit_type == 7 || unit_type == 8))
ctx->idr_sps_pps_seen = 1;
/* if this is a new IDR picture following an IDR picture, reset the idr flag.
* Just check first_mb_in_slice to be 0 as this is the simplest solution.
* This could be checking idr_pic_id instead, but would complexify the parsing. */
if (!ctx->first_idr && unit_type == 5 && (buf[1] & 0x80))
ctx->first_idr = 1;
/* prepend only to the first type 5 NAL unit of an IDR picture, if no sps/pps are already present */
if (ctx->first_idr && unit_type == 5 && !ctx->idr_sps_pps_seen) {