Ejemplos de parse_id3_replay_gain_info en C++ (Cpp)

Ejemplo n.º 1

Archivo: mad_plugin.c Proyecto: azuwis/mpd

static void mp3_parse_id3(struct mp3_data *data, size_t tagsize,
			  struct tag **mpd_tag,
			  struct replay_gain_info **replay_gain_info_r)
{
	struct id3_tag *id3_tag = NULL;
	id3_length_t count;
	id3_byte_t const *id3_data;
	id3_byte_t *allocated = NULL;

	count = data->stream.bufend - data->stream.this_frame;

	if (tagsize <= count) {
		id3_data = data->stream.this_frame;
		mad_stream_skip(&(data->stream), tagsize);
	} else {
		allocated = g_malloc(tagsize);
		memcpy(allocated, data->stream.this_frame, count);
		mad_stream_skip(&(data->stream), count);

		while (count < tagsize) {
			size_t len;

			len = decoder_read(data->decoder, data->input_stream,
					   allocated + count, tagsize - count);
			if (len == 0)
				break;
			else
				count += len;
		}

		if (count != tagsize) {
			g_debug("error parsing ID3 tag");
			g_free(allocated);
			return;
		}

		id3_data = allocated;
	}

	id3_tag = id3_tag_parse(id3_data, tagsize);
	if (id3_tag == NULL) {
		g_free(allocated);
		return;
	}

	if (mpd_tag) {
		struct tag *tmp_tag = tag_id3_import(id3_tag);
		if (tmp_tag != NULL) {
			if (*mpd_tag != NULL)
				tag_free(*mpd_tag);
			*mpd_tag = tmp_tag;
		}
	}

	if (replay_gain_info_r) {
		struct replay_gain_info *tmp_rgi =
			parse_id3_replay_gain_info(id3_tag);
		if (tmp_rgi != NULL) {
			if (*replay_gain_info_r)
				replay_gain_info_free(*replay_gain_info_r);
			*replay_gain_info_r = tmp_rgi;
		}
	}

	id3_tag_delete(id3_tag);

	g_free(allocated);
}

Ejemplo n.º 2

Archivo: mad_decoder_plugin.c Proyecto: Acidburn0zzz/mpd

static void mp3_parse_id3(struct mp3_data *data, size_t tagsize,
			  struct tag **mpd_tag)
{
#ifdef HAVE_ID3TAG
	struct id3_tag *id3_tag = NULL;
	id3_length_t count;
	id3_byte_t const *id3_data;
	id3_byte_t *allocated = NULL;

	count = data->stream.bufend - data->stream.this_frame;

	if (tagsize <= count) {
		id3_data = data->stream.this_frame;
		mad_stream_skip(&(data->stream), tagsize);
	} else {
		allocated = g_malloc(tagsize);
		memcpy(allocated, data->stream.this_frame, count);
		mad_stream_skip(&(data->stream), count);

		while (count < tagsize) {
			size_t len;

			len = decoder_read(data->decoder, data->input_stream,
					   allocated + count, tagsize - count);
			if (len == 0)
				break;
			else
				count += len;
		}

		if (count != tagsize) {
			g_debug("error parsing ID3 tag");
			g_free(allocated);
			return;
		}

		id3_data = allocated;
	}

	id3_tag = id3_tag_parse(id3_data, tagsize);
	if (id3_tag == NULL) {
		g_free(allocated);
		return;
	}

	if (mpd_tag) {
		struct tag *tmp_tag = tag_id3_import(id3_tag);
		if (tmp_tag != NULL) {
			if (*mpd_tag != NULL)
				tag_free(*mpd_tag);
			*mpd_tag = tmp_tag;
		}
	}

	if (data->decoder != NULL) {
		struct replay_gain_info rgi;
		char *mixramp_start;
		char *mixramp_end;
		float replay_gain_db = 0;

		if (parse_id3_replay_gain_info(&rgi, id3_tag)) {
			replay_gain_db = decoder_replay_gain(data->decoder, &rgi);
			data->found_replay_gain = true;
		}
		if (parse_id3_mixramp(&mixramp_start, &mixramp_end, id3_tag)) {
			g_debug("setting mixramp_tags");
			decoder_mixramp(data->decoder, replay_gain_db,
					mixramp_start, mixramp_end);
		}
	}

	id3_tag_delete(id3_tag);

	g_free(allocated);
#else /* !HAVE_ID3TAG */
	(void)mpd_tag;

	/* This code is enabled when libid3tag is disabled.  Instead
	   of parsing the ID3 frame, it just skips it. */

	size_t count = data->stream.bufend - data->stream.this_frame;

	if (tagsize <= count) {
		mad_stream_skip(&data->stream, tagsize);
	} else {
		mad_stream_skip(&data->stream, count);

		while (count < tagsize) {
			size_t len = tagsize - count;
			char ignored[1024];
			if (len > sizeof(ignored))
				len = sizeof(ignored);

			len = decoder_read(data->decoder, data->input_stream,
					   ignored, len);
			if (len == 0)
				break;
			else
				count += len;
		}
	}
#endif
}