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Topic: How to use track_property_provider (Read 2580 times) previous topic - next topic
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How to use track_property_provider

Please teach the usage of track_property_provider.

How to use track_property_provider

Reply #1 –
Warning: Code is untested.
Code: [Select]
class custom_track_property_provider : public track_property_provider_v2
{
public:
	virtual void enumerate_properties(metadb_handle_list_cref p_tracks, track_property_callback & p_out)
	{
		// Compute value based on p_tracks.
		pfc::string8 value;

		if (compute_property_value(p_tracks, value))
		{
			p_out.set_property("XYZ Group", 0.0, "XYZ Property", value);
		}
	}
	
	virtual bool is_our_tech_info(const char * p_name)
	{
		// Remove "xyz" and "uvw" from unknown tech info section.
		if ((0 == stricmp_utf_8(p_name, "xyz")) || (0 == stricmp_utf_8(p_name, "uvw")))
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	virtual void enumerate_properties_v2(metadb_handle_list_cref p_tracks, track_property_callback_v2 & p_out)
	{
		if (p_out.is_group_wanted("XYZ Group"))
		{
			enumerate_properties(p_track, p_out);
		}
	}
	
private:
	bool compute_property_value(metadb_handle_list_cref p_track, pfc::string_base & p_out);
};

namespace {
	track_property_provider_factory<custom_track_property_provider> g_custom_track_property_provider;
}