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avcodec/ffv1enc: Allocate smaller packet if the worst case size cannot be allocated

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We are checking during encoding if there is enough space as version 4 needs that
check.

Fixes Ticket6005

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-12-08 23:51:45 +01:00
parent cff1c0edaa
commit 38a7834bbb
1 changed files with 5 additions and 0 deletions
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5
libavcodec/ffv1enc.c
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@ -1151,6 +1151,11 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
if (f->version > 3)
maxsize = AV_INPUT_BUFFER_MIN_SIZE + avctx->width*avctx->height*3LL*4;
if (maxsize > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32) {
av_log(avctx, AV_LOG_WARNING, "Cannot allocate worst case packet size, the encoding could fail\n");
maxsize = INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE - 32;
}
if ((ret = ff_alloc_packet2(avctx, pkt, maxsize, 0)) < 0)
return ret;