From ea8785cedae21b312e18a0bc9cb5ebcd3462cc6b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 19 Jul 2015 18:17:18 +0200 Subject: [PATCH] avcodec/utils: Check that channel count is valid in avcodec_open2(); Signed-off-by: Michael Niedermayer --- libavcodec/utils.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/utils.c b/libavcodec/utils.c index e4eb772f4c..53b01b09ba 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1617,6 +1617,12 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code } else if (avctx->channel_layout) { avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); } + if (avctx->channels < 0) { + av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n", + avctx->channels); + ret = AVERROR(EINVAL); + goto free_and_end; + } if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) { if (avctx->width <= 0 || avctx->height <= 0) { av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");