move audioOutput dir to audioOutputs

git-svn-id: https://svn.musicpd.org/mpd/trunk@2471 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 243 insertions, 0 deletions

diff --git a/src/audioOutputs/audioOutput_ao.c b/src/audioOutputs/audioOutput_ao.c
new file mode 100644
index 000000000..366c42c1d
--- /dev/null
+++ b/src/audioOutputs/audioOutput_ao.c
@@ -0,0 +1,243 @@
+/* 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 driverInitCount = 0;
+
+typedef struct _AoData {
+	int writeSize;
+	int driverId;
+	ao_option * options;
+	ao_device * device;
+} AoData;
+
+static AoData * newAoData() {
+	AoData * ret = malloc(sizeof(AoData));
+	ret->device = NULL;
+	ret->options = NULL;
+
+	return ret;
+}
+
+static void audioOutputAo_error() {
+	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') {
+			ERROR("\"%s\" is not a valid write size at line %i\n",
+				blockParam->value, blockParam->line);
+			exit(EXIT_FAILURE);
+		}
+	}
+	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) {
+		ERROR("\"%s\" is not a valid ao driver at line %i\n",
+			blockParam->value, blockParam->line);
+		exit(EXIT_FAILURE);
+	}
+	
+	if((ai = ao_driver_info(ad->driverId))==NULL) {
+		ERROR("problems getting driver info for device defined at "
+				"line %i\n", param->line);
+		ERROR("you may not have permission to the audio device\n");
+		exit(EXIT_FAILURE);
+	}
+
+	blockParam = getBlockParam(param, "options");
+
+	if(blockParam) {
+		dup = strdup(blockParam->value);
+	}
+	else dup = strdup("");
+
+	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(&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_closeDevice(AudioOutput * audioOutput) {
+	AoData * ad = (AoData *) audioOutput->data;
+
+	if(ad->device) {
+		blockSignals();
+		ao_close(ad->device);
+		ad->device = NULL;
+		unblockSignals();
+	}
+
+	audioOutput->open = 0;
+}
+
+static int audioOutputAo_openDevice(AudioOutput * audioOutput,
+		AudioFormat * audioFormat) 
+{
+	ao_sample_format format;
+	AoData * ad = (AoData *)audioOutput->data;
+
+	if(ad->device) {
+		audioOutputAo_closeDevice(audioOutput);
+	}
+
+	format.bits = audioFormat->bits;
+	format.rate = audioFormat->sampleRate;
+	format.byte_format = AO_FMT_NATIVE;
+	format.channels = audioFormat->channels;
+
+	blockSignals();
+	ad->device = ao_open_live(ad->driverId, &format, ad->options);
+	unblockSignals();
+
+	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",
+	audioOutputAo_initDriver,
+	audioOutputAo_finishDriver,
+	audioOutputAo_openDevice,
+	audioOutputAo_play,
+	audioOutputAo_closeDevice,
+	NULL /* sendMetadataFunc */
+};