mp4: Fail early on invalid sample rate or sample count.

[paraslash.git] / mp4.c

diff --git a/mp4.c b/mp4.c
index 18f43925aef377ae620643a886df8502988fa509..b12cbbf48c121c83c8b1bf40c92196fa5d051841 100644 (file)
--- a/mp4.c
+++ b/mp4.c
@@ -592,6 +592,9 @@ static int open_file(const struct mp4_callback *cb, bool meta_only, struct mp4 *
        ret = -E_MP4_TRACK;
        if (f->track.channel_count == 0)
                goto fail;
+       ret = -E_MP4_BAD_SAMPLERATE;
+       if (f->track.sample_rate == 0)
+               goto fail;
        *result = f;
        return 1;
 fail:
@@ -602,7 +605,21 @@ fail:
 
 int mp4_open_read(const struct mp4_callback *cb, struct mp4 **result)
 {
-       return open_file(cb, false, result);
+       struct mp4 *f;
+       int ret;
+
+       *result = NULL;
+       ret = open_file(cb, false, &f);
+       if (ret < 0)
+               return ret;
+       ret = -E_MP4_BAD_SAMPLE_COUNT;
+       if (f->track.stsz_sample_count == 0)
+               goto fail;
+       *result = f;
+       return 1;
+fail:
+       mp4_close(f);
+       return ret;
 }
 
 void mp4_close(struct mp4 *f)