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Avoid a null pointer dereference in avcodec_decode_audio4().

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This could happen if oom occured while probing a file.
Fixes ticket #2722.
This commit is contained in:
Carl Eugen Hoyos 2013-07-01 03:07:44 +02:00
parent ec837a0899
commit b42bcaef29
1 changed files with 2 additions and 0 deletions
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2
libavcodec/utils.c
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@ -2061,6 +2061,8 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
return AVERROR(EINVAL);
}
if (!avctx->codec)
return AVERROR(EINVAL);
if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
return AVERROR(EINVAL);