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avcodec/ffv1dec: update progress in case of broken pointer chains

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Fixes deadlock
Fixes Ticket4932

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5063a18f56)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2015-10-16 22:25:20 +02:00
parent a3753ba10d
commit f0db50a57f
1 changed files with 1 additions and 0 deletions
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libavcodec/ffv1dec.c
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@@ -935,6 +935,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
else v = buf_p - c->bytestream_start;
if (buf_p - c->bytestream_start < v) {
av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n");
ff_thread_report_progress(&f->picture, INT_MAX, 0);
return AVERROR_INVALIDDATA;
}
buf_p -= v;