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avcodec/h264_parser: Set sps/pps_ref

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Fixes use of freed memory
Should fix valgrind failures of fate-h264-skip-nointra

Found-by: logan
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-07-02 03:06:27 +02:00
parent 77eb05a2f1
commit febc862b53
1 changed files with 15 additions and 2 deletions
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17
libavcodec/h264_parser.c
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@ -367,13 +367,26 @@ static inline int parse_nal_units(AVCodecParserContext *s,
"non-existing PPS %u referenced\n", pps_id);
goto fail;
}
p->ps.pps = (const PPS*)p->ps.pps_list[pps_id]->data;
av_buffer_unref(&p->ps.pps_ref);
av_buffer_unref(&p->ps.sps_ref);
p->ps.pps = NULL;
p->ps.sps = NULL;
p->ps.pps_ref = av_buffer_ref(p->ps.pps_list[pps_id]);
if (!p->ps.pps_ref)
goto fail;
p->ps.pps = (const PPS*)p->ps.pps_ref->data;
if (!p->ps.sps_list[p->ps.pps->sps_id]) {
av_log(avctx, AV_LOG_ERROR,
"non-existing SPS %u referenced\n", p->ps.pps->sps_id);
goto fail;
}
p->ps.sps = (const SPS*)p->ps.sps_list[p->ps.pps->sps_id]->data;
p->ps.sps_ref = av_buffer_ref(p->ps.sps_list[p->ps.pps->sps_id]);
if (!p->ps.sps_ref)
goto fail;
p->ps.sps = (const SPS*)p->ps.sps_ref->data;
sps = p->ps.sps;