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Christopher N. Hesse
796b0fec7d
According to the gstreamer docs [1], the GstMessage pointer returned by gst_bus_pop() is nullable, meaning NULL is a valid return value. Previously, gst_is_missing_plugin_message would throw an assert when its message object parameter would fail the GST_IS_MESSAGE macro check, crashing the entire process (unless running in a try-catch block of course). Instead of relying on valid messages, check if the message object itself is valid before passing it to other gstreamer functions. [1] https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBus.html#gst-bus-pop Signed-off-by: Christopher N. Hesse <raymanfx@gmail.com>