renamed src/audioOutputs/ to src/output/

Again, no CamelCase in the directory name.

1 files changed, 188 insertions, 0 deletions

diff --git a/src/output/shout_mp3.c b/src/output/shout_mp3.c
new file mode 100644
index 000000000..e57b0c385
--- /dev/null
+++ b/src/output/shout_mp3.c
@@ -0,0 +1,188 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "shout_plugin.h"
+
+#ifdef HAVE_SHOUT_MP3
+
+#include "../utils.h"
+#include <lame/lame.h>
+
+struct lame_data {
+	lame_global_flags *gfp;
+};
+
+
+static int shout_mp3_encoder_init(struct shout_data *sd)
+{
+	struct lame_data *ld;
+
+	if (NULL == (ld = xmalloc(sizeof(*ld))))
+		FATAL("error initializing lame encoder data\n");
+	sd->encoder_data = ld;
+
+	return 0;
+}
+
+static int shout_mp3_encoder_clear_encoder(struct shout_data *sd)
+{
+	struct lame_data *ld = (struct lame_data *)sd->encoder_data;
+	struct shout_buffer *buf = &sd->buf;
+	int ret;
+
+	if ((ret = lame_encode_flush(ld->gfp, buf->data + buf->len,
+				     buf->len)) < 0)
+		ERROR("error flushing lame buffers\n");
+
+	return (ret > 0);
+}
+
+static void shout_mp3_encoder_finish(struct shout_data *sd)
+{
+	struct lame_data *ld = (struct lame_data *)sd->encoder_data;
+
+	lame_close(ld->gfp);
+	ld->gfp = NULL;
+}
+
+static int shout_mp3_encoder_init_encoder(struct shout_data *sd)
+{
+	struct lame_data *ld = (struct lame_data *)sd->encoder_data;
+
+	if (NULL == (ld->gfp = lame_init())) {
+		ERROR("error initializing lame encoder for shout\n");
+		return -1;
+	}
+
+	if (sd->quality >= -1.0) {
+		if (0 != lame_set_VBR(ld->gfp, vbr_rh)) {
+			ERROR("error setting lame VBR mode\n");
+			return -1;
+		}
+		if (0 != lame_set_VBR_q(ld->gfp, sd->quality)) {
+			ERROR("error setting lame VBR quality\n");
+			return -1;
+		}
+	} else {
+		if (0 != lame_set_brate(ld->gfp, sd->bitrate)) {
+			ERROR("error setting lame bitrate\n");
+			return -1;
+		}
+	}
+
+	if (0 != lame_set_num_channels(ld->gfp,
+				       sd->audio_format.channels)) {
+		ERROR("error setting lame num channels\n");
+		return -1;
+	}
+
+	if (0 != lame_set_in_samplerate(ld->gfp,
+					sd->audio_format.sample_rate)) {
+		ERROR("error setting lame sample rate\n");
+		return -1;
+	}
+
+	if (0 > lame_init_params(ld->gfp))
+		FATAL("error initializing lame params\n");
+
+	return 0;
+}
+
+static int shout_mp3_encoder_send_metadata(struct shout_data *sd,
+					   char * song, size_t size)
+{
+	char artist[size];
+	char title[size];
+	int i;
+	struct tag *tag = sd->tag;
+
+	strncpy(artist, "", size);
+	strncpy(title, "", size);
+
+	for (i = 0; i < tag->numOfItems; i++) {
+		switch (tag->items[i]->type) {
+		case TAG_ITEM_ARTIST:
+			strncpy(artist, tag->items[i]->value, size);
+			break;
+		case TAG_ITEM_TITLE:
+			strncpy(title, tag->items[i]->value, size);
+			break;
+
+		default:
+			break;
+		}
+	}
+	snprintf(song, size, "%s - %s", title, artist);
+
+	return 1;
+}
+
+static int shout_mp3_encoder_encode(struct shout_data *sd,
+				    const char * chunk, size_t len)
+{
+	unsigned int i;
+	int j;
+	float (*lamebuf)[2];
+	struct shout_buffer *buf = &(sd->buf);
+	unsigned int samples;
+	int bytes = audio_format_sample_size(&sd->audio_format);
+	struct lame_data *ld = (struct lame_data *)sd->encoder_data;
+	int bytes_out;
+
+	samples = len / (bytes * sd->audio_format.channels);
+	/* rough estimate, from lame.h */
+	lamebuf = xmalloc(sizeof(float) * (1.25 * samples + 7200));
+
+	/* this is for only 16-bit audio */
+
+	for (i = 0; i < samples; i++) {
+		for (j = 0; j < sd->audio_format.channels; j++) {
+			lamebuf[j][i] = *((const int16_t *) chunk);
+			chunk += bytes;
+		}
+	}
+
+	bytes_out = lame_encode_buffer_float(ld->gfp, lamebuf[0], lamebuf[1],
+					     samples, buf->data,
+					     sizeof(buf->data) - buf->len);
+	free(lamebuf);
+
+	if (0 > bytes_out) {
+		ERROR("error encoding lame buffer for shout\n");
+		lame_close(ld->gfp);
+		ld->gfp = NULL;
+		return -1;
+	} else
+		buf->len = bytes_out; /* signed to unsigned conversion */
+
+	return 0;
+}
+
+const struct shout_encoder_plugin shout_mp3_encoder = {
+	"mp3",
+	SHOUT_FORMAT_MP3,
+
+	shout_mp3_encoder_clear_encoder,
+	shout_mp3_encoder_encode,
+	shout_mp3_encoder_finish,
+	shout_mp3_encoder_init,
+	shout_mp3_encoder_init_encoder,
+	shout_mp3_encoder_send_metadata,
+};
+
+#endif