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authorJ. Alexander Treuman <jat@spatialrift.net>2007-05-28 13:09:41 +0000
committerJ. Alexander Treuman <jat@spatialrift.net>2007-05-28 13:09:41 +0000
commit6e5c90e098005b66f86a9fd99a26956cbaa0c392 (patch)
treed5699855fe945b0b02e511c87def301d119ae922 /trunk/src/audioOutputs/audioOutput_ao.c
parent28c7a91d2462128a7df9a417cbbd59cad89ba19b (diff)
downloadmpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.tar.gz
mpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.tar.xz
mpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.zip
Re-tagging 0.13.0 release to fix a couple of bugs with the tarball.
git-svn-id: https://svn.musicpd.org/mpd/tags/release-0.13.0@6325 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to '')
-rw-r--r--trunk/src/audioOutputs/audioOutput_ao.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/trunk/src/audioOutputs/audioOutput_ao.c b/trunk/src/audioOutputs/audioOutput_ao.c
new file mode 100644
index 000000000..a7f437ef4
--- /dev/null
+++ b/trunk/src/audioOutputs/audioOutput_ao.c
@@ -0,0 +1,246 @@
+/* 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 "../audioOutput.h"
+
+#ifdef HAVE_AO
+
+#include "../conf.h"
+#include "../log.h"
+
+#include <string.h>
+
+#include <ao/ao.h>
+
+static int driverInitCount;
+
+typedef struct _AoData {
+ int writeSize;
+ int driverId;
+ ao_option *options;
+ ao_device *device;
+} AoData;
+
+static AoData *newAoData(void)
+{
+ AoData *ret = xmalloc(sizeof(AoData));
+ ret->device = NULL;
+ ret->options = NULL;
+
+ return ret;
+}
+
+static void audioOutputAo_error(void)
+{
+ if (errno == AO_ENOTLIVE) {
+ ERROR("not a live ao device\n");
+ } else if (errno == AO_EOPENDEVICE) {
+ ERROR("not able to open audio device\n");
+ } else if (errno == AO_EBADOPTION) {
+ ERROR("bad driver option\n");
+ }
+}
+
+static int audioOutputAo_initDriver(AudioOutput * audioOutput,
+ ConfigParam * param)
+{
+ ao_info *ai;
+ char *dup;
+ char *stk1;
+ char *stk2;
+ char *n1;
+ char *key;
+ char *value;
+ char *test;
+ AoData *ad = newAoData();
+ BlockParam *blockParam;
+
+ audioOutput->data = ad;
+
+ if ((blockParam = getBlockParam(param, "write_size"))) {
+ ad->writeSize = strtol(blockParam->value, &test, 10);
+ if (*test != '\0') {
+ FATAL("\"%s\" is not a valid write size at line %i\n",
+ blockParam->value, blockParam->line);
+ }
+ } else
+ ad->writeSize = 1024;
+
+ if (driverInitCount == 0) {
+ ao_initialize();
+ }
+ driverInitCount++;
+
+ blockParam = getBlockParam(param, "driver");
+
+ if (!blockParam || 0 == strcmp(blockParam->value, "default")) {
+ ad->driverId = ao_default_driver_id();
+ } else if ((ad->driverId = ao_driver_id(blockParam->value)) < 0) {
+ FATAL("\"%s\" is not a valid ao driver at line %i\n",
+ blockParam->value, blockParam->line);
+ }
+
+ if ((ai = ao_driver_info(ad->driverId)) == NULL) {
+ FATAL("problems getting driver info for device defined at line %i\n"
+ "you may not have permission to the audio device\n", param->line);
+ }
+
+ DEBUG("using ao driver \"%s\" for \"%s\"\n", ai->short_name,
+ audioOutput->name);
+
+ blockParam = getBlockParam(param, "options");
+
+ if (blockParam) {
+ dup = xstrdup(blockParam->value);
+ } else
+ dup = xstrdup("");
+
+ if (strlen(dup)) {
+ stk1 = NULL;
+ n1 = strtok_r(dup, ";", &stk1);
+ while (n1) {
+ stk2 = NULL;
+ key = strtok_r(n1, "=", &stk2);
+ if (!key)
+ FATAL("problems parsing options \"%s\"\n", n1);
+ /*found = 0;
+ for(i=0;i<ai->option_count;i++) {
+ if(strcmp(ai->options[i],key)==0) {
+ found = 1;
+ break;
+ }
+ }
+ if(!found) {
+ FATAL("\"%s\" is not an option for "
+ "\"%s\" ao driver\n",key,
+ ai->short_name);
+ } */
+ value = strtok_r(NULL, "", &stk2);
+ if (!value)
+ FATAL("problems parsing options \"%s\"\n", n1);
+ ao_append_option(&ad->options, key, value);
+ n1 = strtok_r(NULL, ";", &stk1);
+ }
+ }
+ free(dup);
+
+ return 0;
+}
+
+static void freeAoData(AoData * ad)
+{
+ ao_free_options(ad->options);
+ free(ad);
+}
+
+static void audioOutputAo_finishDriver(AudioOutput * audioOutput)
+{
+ AoData *ad = (AoData *) audioOutput->data;
+ freeAoData(ad);
+
+ driverInitCount--;
+
+ if (driverInitCount == 0)
+ ao_shutdown();
+}
+
+static void audioOutputAo_dropBufferedAudio(AudioOutput * audioOutput)
+{
+ /* not supported by libao */
+}
+
+static void audioOutputAo_closeDevice(AudioOutput * audioOutput)
+{
+ AoData *ad = (AoData *) audioOutput->data;
+
+ if (ad->device) {
+ ao_close(ad->device);
+ ad->device = NULL;
+ }
+
+ audioOutput->open = 0;
+}
+
+static int audioOutputAo_openDevice(AudioOutput * audioOutput)
+{
+ ao_sample_format format;
+ AoData *ad = (AoData *) audioOutput->data;
+
+ if (ad->device) {
+ audioOutputAo_closeDevice(audioOutput);
+ }
+
+ format.bits = audioOutput->outAudioFormat.bits;
+ format.rate = audioOutput->outAudioFormat.sampleRate;
+ format.byte_format = AO_FMT_NATIVE;
+ format.channels = audioOutput->outAudioFormat.channels;
+
+ ad->device = ao_open_live(ad->driverId, &format, ad->options);
+
+ if (ad->device == NULL)
+ return -1;
+
+ audioOutput->open = 1;
+
+ return 0;
+}
+
+static int audioOutputAo_play(AudioOutput * audioOutput, char *playChunk,
+ int size)
+{
+ int send;
+ AoData *ad = (AoData *) audioOutput->data;
+
+ if (ad->device == NULL)
+ return -1;
+
+ while (size > 0) {
+ send = ad->writeSize > size ? size : ad->writeSize;
+
+ if (ao_play(ad->device, playChunk, send) == 0) {
+ audioOutputAo_error();
+ ERROR("closing audio device due to write error\n");
+ audioOutputAo_closeDevice(audioOutput);
+ return -1;
+ }
+
+ playChunk += send;
+ size -= send;
+ }
+
+ return 0;
+}
+
+AudioOutputPlugin aoPlugin = {
+ "ao",
+ NULL,
+ audioOutputAo_initDriver,
+ audioOutputAo_finishDriver,
+ audioOutputAo_openDevice,
+ audioOutputAo_play,
+ audioOutputAo_dropBufferedAudio,
+ audioOutputAo_closeDevice,
+ NULL, /* sendMetadataFunc */
+};
+
+#else
+
+#include <stdio.h>
+
+DISABLED_AUDIO_OUTPUT_PLUGIN(aoPlugin)
+#endif