xa: abort if number of channels or sample rate is 0

Fixes #2711. Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago · ad194b0487
parent da8c9b324c
commit ad194b0487
1 changed files with 3 additions and 0 deletions
--- a/libavformat/xa.c
+++ b/libavformat/xa.c
@ -84,6 +84,9 @@ static int xa_read_header(AVFormatContext *s)
    avio_skip(pb, 2);       /* Skip block align */
    avio_skip(pb, 2);       /* Skip bits-per-sample */

+    if (!st->codec->channels || !st->codec->sample_rate)
+        return AVERROR_INVALIDDATA;
+
    st->codec->bit_rate = av_clip(15LL * st->codec->channels * 8 *
                                  st->codec->sample_rate / 28, 0, INT_MAX);