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-rw-r--r--src/audioOutput.h11
-rw-r--r--src/audioOutput_ao.c262
2 files changed, 273 insertions, 0 deletions
diff --git a/src/audioOutput.h b/src/audioOutput.h
index 664498868..30d3b996e 100644
--- a/src/audioOutput.h
+++ b/src/audioOutput.h
@@ -58,4 +58,15 @@ struct _AudioOutput {
void * data;
};
+typedef struct _AudioOutputPlugin {
+ char * name;
+ AudioOutputInitConfigFunc initConfigFunc;
+ AudioOutputFinishConfigFunc finishConfigFunc;
+ AudioOutputInitDriverFunc initDriverFunc;
+ AudioOutputFinishDriverFunc finishDriverFunc;
+ AudioOutputOpenDeviceFunc openDeviceFunc;
+ AudioOutputPlayFunc playFunc;
+ AudioOutputCloseDevicFunc closeDeviceFunc;
+} AudioOutputPlugin;
+
#endif
diff --git a/src/audioOutput_ao.c b/src/audioOutput_ao.c
new file mode 100644
index 000000000..385efe2ff
--- /dev/null
+++ b/src/audioOutput_ao.c
@@ -0,0 +1,262 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * 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"
+#include "conf.h"
+#include "log.h"
+#include "sig_handlers.h"
+
+#include <string.h>
+#include <assert.h>
+#include <signal.h>
+
+#include <ao/ao.h>
+
+static int audioOutputAo_write_size;
+
+static int audioOutputAo_driver_id;
+static ao_option * audioOutputAo_options;
+
+static ao_device * audioOutputAo_device = NULL;
+
+void audioOutputAo_initDriver() {
+ ao_info * ai;
+ char * dup;
+ char * stk1;
+ char * stk2;
+ char * n1;
+ char * key;
+ char * value;
+ char * test;
+
+ audio_write_size = strtol((getConf())[CONF_AUDIO_WRITE_SIZE],&test,10);
+ if (*test!='\0') {
+ ERROR("\"%s\" is not a valid write size",
+ (getConf())[CONF_AUDIO_WRITE_SIZE]);
+ exit(EXIT_FAILURE);
+ }
+
+ audio_ao_options = NULL;
+
+ ao_initialize();
+ if(strcmp(AUDIO_AO_DRIVER_DEFAULT,(getConf())[CONF_AO_DRIVER])==0) {
+ audio_ao_driver_id = ao_default_driver_id();
+ }
+ else if((audio_ao_driver_id =
+ ao_driver_id((getConf())[CONF_AO_DRIVER]))<0) {
+ ERROR("\"%s\" is not a valid ao driver\n",
+ (getConf())[CONF_AO_DRIVER]);
+ exit(EXIT_FAILURE);
+ }
+
+ if((ai = ao_driver_info(audio_ao_driver_id))==NULL) {
+ ERROR("problems getting ao_driver_info\n");
+ ERROR("you may not have permission to the audio device\n");
+ exit(EXIT_FAILURE);
+ }
+
+ dup = strdup((getConf())[CONF_AO_DRIVER_OPTIONS]);
+ if(strlen(dup)) {
+ stk1 = NULL;
+ n1 = strtok_r(dup,";",&stk1);
+ while(n1) {
+ stk2 = NULL;
+ key = strtok_r(n1,"=",&stk2);
+ if(!key) {
+ ERROR("problems parsing "
+ "ao_driver_options \"%s\"\n", n1);
+ exit(EXIT_FAILURE);
+ }
+ /*found = 0;
+ for(i=0;i<ai->option_count;i++) {
+ if(strcmp(ai->options[i],key)==0) {
+ found = 1;
+ break;
+ }
+ }
+ if(!found) {
+ ERROR("\"%s\" is not an option for "
+ "\"%s\" ao driver\n",key,
+ ai->short_name);
+ exit(EXIT_FAILURE);
+ }*/
+ value = strtok_r(NULL,"",&stk2);
+ if(!value) {
+ ERROR("problems parsing "
+ "ao_driver_options \"%s\"\n", n1);
+ exit(EXIT_FAILURE);
+ }
+ ao_append_option(&audio_ao_options,key,value);
+ n1 = strtok_r(NULL,";",&stk1);
+ }
+ }
+ free(dup);
+}
+
+void audioOutputAo_initConfig() {
+ char * conf = getConf()[CONF_AUDIO_OUTPUT_FORMAT];
+ char * test;
+
+ if(NULL == conf) return;
+
+ audio_configFormat = malloc(sizeof(AudioFormat));
+
+ memset(audio_configFormat,0,sizeof(AudioFormat));
+
+ audio_configFormat->sampleRate = strtol(conf,&test,10);
+
+ if(*test!=':') {
+ ERROR("error parsing audio output format: %s\n",conf);
+ exit(EXIT_FAILURE);
+ }
+
+ /*switch(audio_configFormat->sampleRate) {
+ case 48000:
+ case 44100:
+ case 32000:
+ case 16000:
+ break;
+ default:
+ ERROR("sample rate %i can not be used for audio output\n",
+ (int)audio_configFormat->sampleRate);
+ exit(EXIT_FAILURE);
+ }*/
+
+ if(audio_configFormat->sampleRate <= 0) {
+ ERROR("sample rate %i is not >= 0\n",
+ (int)audio_configFormat->sampleRate);
+ exit(EXIT_FAILURE);
+ }
+
+ audio_configFormat->bits = strtol(test+1,&test,10);
+
+ if(*test!=':') {
+ ERROR("error parsing audio output format: %s\n",conf);
+ exit(EXIT_FAILURE);
+ }
+
+ switch(audio_configFormat->bits) {
+ case 16:
+ break;
+ default:
+ ERROR("bits %i can not be used for audio output\n",
+ (int)audio_configFormat->bits);
+ exit(EXIT_FAILURE);
+ }
+
+ audio_configFormat->channels = strtol(test+1,&test,10);
+
+ if(*test!='\0') {
+ ERROR("error parsing audio output format: %s\n",conf);
+ exit(EXIT_FAILURE);
+ }
+
+ switch(audio_configFormat->channels) {
+ case 2:
+ break;
+ default:
+ ERROR("channels %i can not be used for audio output\n",
+ (int)audio_configFormat->channels);
+ exit(EXIT_FAILURE);
+ }
+}
+
+void audioOutputAo_finishConfig() {
+ if(audio_configFormat) free(audio_configFormat);
+}
+
+void audioOutputAo_finishDriver() {
+ ao_free_options(audio_ao_options);
+
+ ao_shutdown();
+}
+
+int audioOutputAo_openDevice(AudioFormat * audioFormat) {
+ ao_sample_format format;
+
+ if(audio_device && !isCurrentAudioFormat(audioFormat)) {
+ closeAudioDevice();
+ }
+
+ if(!audio_device) {
+ if(audioFormat) {
+ copyAudioFormat(&audio_format,audioFormat);
+ }
+
+ format.bits = audio_format.bits;
+ format.rate = audio_format.sampleRate;
+ format.byte_format = AO_FMT_NATIVE;
+ format.channels = audio_format.channels;
+
+ blockSignals();
+ audio_device = ao_open_live(audio_ao_driver_id, &format,
+ audio_ao_options);
+ unblockSignals();
+
+ if(audio_device==NULL) return -1;
+ }
+
+ return 0;
+}
+
+
+int audioOutputAo_playAudio(char * playChunk, int size) {
+ int send;
+
+ if(audio_device==NULL) {
+ ERROR("trying to play w/o the audio device being open!\n");
+ return -1;
+ }
+
+ while(size>0) {
+ send = audio_write_size>size?size:audio_write_size;
+
+ if(ao_play(audio_device,playChunk,send)==0) {
+ audioError();
+ ERROR("closing audio device due to write error\n");
+ closeAudioDevice();
+ return -1;
+ }
+
+ playChunk+=send;
+ size-=send;
+ }
+
+ return 0;
+}
+
+void audioOutputAo_closeAudioDevice() {
+ if(audio_device) {
+ blockSignals();
+ ao_close(audio_device);
+ audio_device = NULL;
+ unblockSignals();
+ }
+}
+
+AudioOutputPlugin aoPlugin =
+{
+ "ao",
+ audioOutputAo_initConfig,
+ audioOutputAo_finishConfig,
+ audioOutputAo_initDriver,
+ audioOutputAo_finishDriver,
+ audioOutputAo_openDevice,
+ audioOutputAo_play,
+ audioOutputAo_closeDevice
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 16:32:54 +0000