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modplug: avoid division by zero

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Under some conditions, GetMaxPosition() returns zero, which should cause
position queries to fail rather than crash.
This commit is contained in:
Jonathan Matthew 2020-08-28 07:53:26 +10:00
parent 04fd705906
commit 2b024ec1b4
1 changed files with 8 additions and 4 deletions
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12
ext/modplug/gstmodplug.cc
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@ -298,11 +298,15 @@ gst_modplug_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
gst_query_parse_position (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gint64 pos;
guint32 max;
pos = (modplug->song_length * modplug->mSoundFile->GetCurrentPos ());
pos /= modplug->mSoundFile->GetMaxPosition ();
gst_query_set_position (query, format, pos);
res = TRUE;
max = modplug->mSoundFile->GetMaxPosition();
if (max > 0) {
pos = (modplug->song_length * modplug->mSoundFile->GetCurrentPos ()) /
max;
gst_query_set_position (query, format, pos);
res = TRUE;
}
}
}
break;