C++ (Cpp) replay_gain_tuple_defined Exemples

Exemple #1

Fichier : dump_rva2.c Projet : Acidburn0zzz/mpd

int main(int argc, char **argv)
{
	GError *error = NULL;

#ifdef HAVE_LOCALE_H
	/* initialize locale */
	setlocale(LC_CTYPE,"");
#endif

	if (argc != 2) {
		g_printerr("Usage: read_rva2 FILE\n");
		return 1;
	}

	const char *path = argv[1];

	struct id3_tag *tag = tag_id3_load(path, &error);
	if (tag == NULL) {
		if (error != NULL) {
			g_printerr("%s\n", error->message);
			g_error_free(error);
		} else
			g_printerr("No ID3 tag found\n");

		return EXIT_FAILURE;
	}

	struct replay_gain_info replay_gain;
	replay_gain_info_init(&replay_gain);

	bool success = tag_rva2_parse(tag, &replay_gain);
	id3_tag_delete(tag);

	if (!success) {
		g_printerr("No RVA2 tag found\n");
		return EXIT_FAILURE;
	}

	const struct replay_gain_tuple *tuple =
		&replay_gain.tuples[REPLAY_GAIN_ALBUM];
	if (replay_gain_tuple_defined(tuple))
		g_printerr("replay_gain[album]: gain=%f peak=%f\n",
			   tuple->gain, tuple->peak);

	tuple = &replay_gain.tuples[REPLAY_GAIN_TRACK];
	if (replay_gain_tuple_defined(tuple))
		g_printerr("replay_gain[track]: gain=%f peak=%f\n",
			   tuple->gain, tuple->peak);

	return EXIT_SUCCESS;
}

Exemple #2

Fichier : replay_gain_filter_plugin.c Projet : OpenInkpot-archive/iplinux-mpd

/**
 * Recalculates the new volume after a property was changed.
 */
static void
replay_gain_filter_update(struct replay_gain_filter *filter)
{
	if (filter->mode != REPLAY_GAIN_OFF) {
		const struct replay_gain_tuple *tuple =
			&filter->info.tuples[filter->mode];
		float scale = replay_gain_tuple_defined(tuple)
			? replay_gain_tuple_scale(tuple, replay_gain_preamp)
			: replay_gain_missing_preamp;
		g_debug("scale=%f\n", (double)scale);

		filter->volume = pcm_float_to_volume(scale);
	} else
		filter->volume = PCM_VOLUME_1;

	if (filter->mixer != NULL) {
		/* update the hardware mixer volume */

		unsigned volume = (filter->volume * filter->base) / PCM_VOLUME_1;
		if (volume > 100)
			volume = 100;

		GError *error = NULL;
		if (!mixer_set_volume(filter->mixer, volume, &error)) {
			g_warning("Failed to update hardware mixer: %s",
				  error->message);
			g_error_free(error);
		}
	}
}

Exemple #3

Fichier : run_decoder.c Projet : raumzeitlabor/mpd

float
decoder_replay_gain(G_GNUC_UNUSED struct decoder *decoder,
		    const struct replay_gain_info *replay_gain_info)
{
	const struct replay_gain_tuple *tuple =
		&replay_gain_info->tuples[REPLAY_GAIN_ALBUM];
	if (replay_gain_tuple_defined(tuple))
		g_printerr("replay_gain[album]: gain=%f peak=%f\n",
			   tuple->gain, tuple->peak);

	tuple = &replay_gain_info->tuples[REPLAY_GAIN_TRACK];
	if (replay_gain_tuple_defined(tuple))
		g_printerr("replay_gain[track]: gain=%f peak=%f\n",
			   tuple->gain, tuple->peak);

	return 0.0;
}