avformat/vpk: check that samples_per_block is > 0

Fixes floating point exception.
4 years ago · 8213f0a7f7
parent 45a2902976
commit 8213f0a7f7
1 changed files with 4 additions and 1 deletions
--- a/libavformat/vpk.c
+++ b/libavformat/vpk.c
@ -121,7 +121,10 @@ static int vpk_read_seek(AVFormatContext *s, int stream_index,
    int64_t ret = 0;

    samples_per_block = av_get_audio_frame_duration2(par, par->block_align);
-    timestamp /= samples_per_block;
+    if (samples_per_block > 0)
+        timestamp /= samples_per_block;
+    else
+        return -1;
    ret = avio_seek(s->pb, vpk->data_start + timestamp * par->block_align, SEEK_SET);
    if (ret < 0)
        return ret;