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rv10: Reject slices that does not have the same type as the first one

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This prevents crashes with some corrupted bitstreams.

Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 4a29b471869353c3077fb4b25b6518eb1047afb7)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Laurent Aimar 2011-09-18 00:03:08 +02:00 committed by Reinhard Tartler
parent 9973ca992e
commit 28d948ac44
1 changed files with 5 additions and 0 deletions
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5
libavcodec/rv10.c
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@ -543,6 +543,11 @@ static int rv10_decode_packet(AVCodecContext *avctx,
if(MPV_frame_start(s, avctx) < 0)
return -1;
ff_er_frame_start(s);
} else {
if (s->current_picture_ptr->pict_type != s->pict_type) {
av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
return -1;
}
}
av_dlog(avctx, "qscale=%d\n", s->qscale);