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avcodec/s302menc: check if buf_size can actually be put into 16bit size 

This disallows creating unplayable audio.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-12-19 21:52:19 +01:00
parent 577f057355
commit db6e337b41
1 changed files with 5 additions and 0 deletions
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libavcodec/s302menc.c
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@ -78,6 +78,11 @@ static int s302m_encode2_frame(AVCodecContext *avctx, AVPacket *avpkt,
uint8_t *o; uint8_t *o;
PutBitContext pb; PutBitContext pb;
if (buf_size - AES3_HEADER_LEN > UINT16_MAX) {
av_log(avctx, AV_LOG_ERROR, "number of samples in frame too big\n");
return AVERROR(EINVAL);
}
if ((ret = ff_alloc_packet2(avctx, avpkt, buf_size, 0)) < 0) if ((ret = ff_alloc_packet2(avctx, avpkt, buf_size, 0)) < 0)
return ret; return ret;