Function decklink_object_free

libavdevice/decklink_dec.cpp:165–169

extern "C" {
static void decklink_object_free(void *opaque, uint8_t *data)
{
    IUnknown *obj = (class IUnknown *)opaque;
    obj->Release();
}
}

static int get_vanc_line_idx(BMDDisplayMode mode)