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indeo4: Skip null frames. 

Fixes crashes from Ticket845

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-18 13:57:20 +01:00
parent 7594ee2e6e
commit 572c0ddc89
1 changed files with 3 additions and 0 deletions
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3
libavcodec/indeo4.c
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@ -761,6 +761,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
av_log(avctx, AV_LOG_ERROR, "Buffer contains IP frames!\n");
}
if (ctx->frame_type >= FRAMETYPE_NULL_FIRST)
return buf_size;
if (ctx->frame.data[0])
avctx->release_buffer(avctx, &ctx->frame);