avcodec/apm: fix sample_rate check

Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
5 years ago · 8598fc4010
parent 081e3001ed
commit 8598fc4010
1 changed files with 2 additions and 2 deletions
--- a/libavformat/apm.c
+++ b/libavformat/apm.c
@ -126,8 +126,8 @@ static int apm_read_header(AVFormatContext *s)
    if (avio_rl32(s->pb) != APM_FILE_EXTRADATA_SIZE)
        return AVERROR_INVALIDDATA;

-    /* I've never seen files greater than this. */
-    if (par->sample_rate > 44100)
+    /* 8 = bits per sample * max channels */
+    if (par->sample_rate > (INT_MAX / 8))
        return AVERROR_INVALIDDATA;

    if (par->bits_per_coded_sample != 4)