diff options
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/isom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/isom.c b/libavformat/isom.c index 48fd8e1452..896730c5a6 100644 --- a/libavformat/isom.c +++ b/libavformat/isom.c @@ -418,7 +418,7 @@ int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext len = ff_mp4_read_descr(fc, pb, &tag); if (tag == MP4DecSpecificDescrTag) { av_dlog(fc, "Specific MPEG4 header len=%d\n", len); - if((uint64_t)len > (1<<30)) + if (!len || (uint64_t)len > (1<<30)) return -1; av_free(st->codec->extradata); st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); |