2005-03-13 20:23:09 +01:00
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/* the Music Player Daemon (MPD)
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* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../audioOutput.h"
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#ifdef HAVE_OSX
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2005-03-16 05:46:41 +01:00
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#include <AudioUnit/AudioUnit.h>
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2005-03-13 20:23:09 +01:00
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#include <stdlib.h>
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2005-03-14 05:30:32 +01:00
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#include <pthread.h>
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2005-03-16 05:46:41 +01:00
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#include "../log.h"
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#define BUFFER_SIZE 8192
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2005-03-13 20:23:09 +01:00
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typedef struct _OsxData {
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2005-03-16 05:46:41 +01:00
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AudioUnit au;
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2005-03-14 05:30:32 +01:00
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pthread_mutex_t mutex;
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pthread_cond_t condition;
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2005-03-16 05:46:41 +01:00
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char buffer[BUFFER_SIZE];
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2005-03-14 05:30:32 +01:00
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int pos;
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int len;
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int go;
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int started;
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2005-03-13 20:23:09 +01:00
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} OsxData;
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static OsxData * newOsxData() {
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OsxData * ret = malloc(sizeof(OsxData));
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2005-03-14 05:30:32 +01:00
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pthread_mutex_init(&ret->mutex, NULL);
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pthread_cond_init(&ret->condition, NULL);
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ret->pos = 0;
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ret->len = 0;
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ret->go = 0;
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ret->started = 0;
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2005-03-13 20:23:09 +01:00
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return ret;
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}
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2005-03-13 22:33:55 +01:00
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static int osx_testDefault() {
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2005-03-16 05:46:41 +01:00
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/*AudioUnit au;
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ComponentDescription desc;
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Component comp;
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desc.componentType = kAudioUnitType_Output;
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desc.componentSubType = kAudioUnitSubType_Output;
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desc.componentManufacturer = kAudioUnitManufacturer_Apple;
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desc.componentFlags = 0;
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desc.componentFlagsMask = 0;
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comp = FindNextComponent(NULL, &desc);
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if(!comp) {
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ERROR("Unable to open default OS X defice\n");
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return -1;
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}
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if(OpenAComponent(comp, &au) != noErr) {
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ERROR("Unable to open default OS X defice\n");
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2005-03-13 22:33:55 +01:00
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return -1;
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}
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2005-03-16 05:46:41 +01:00
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CloseComponent(au);*/
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2005-03-13 22:33:55 +01:00
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return 0;
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}
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2005-03-13 20:23:09 +01:00
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static int osx_initDriver(AudioOutput * audioOutput, ConfigParam * param) {
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OsxData * od = newOsxData();
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audioOutput->data = od;
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return 0;
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}
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static void freeOsxData(OsxData * od) {
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free(od);
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}
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static void osx_finishDriver(AudioOutput * audioOutput) {
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OsxData * od = (OsxData *)audioOutput->data;
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freeOsxData(od);
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}
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static void osx_dropBufferedAudio(AudioOutput * audioOutput) {
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/* not implemented yet */
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}
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static void osx_closeDevice(AudioOutput * audioOutput) {
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2005-03-17 00:05:25 +01:00
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OsxData * od = (OsxData *) audioOutput->data;
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2005-03-17 00:11:08 +01:00
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DEBUG("entering osx_closeDevice\n");
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2005-03-17 00:05:25 +01:00
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pthread_mutex_lock(&od->mutex);
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2005-03-17 00:11:08 +01:00
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od->go = 0;
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2005-03-17 00:05:25 +01:00
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while(od->len) {
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2005-03-17 00:11:08 +01:00
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DEBUG("osx_closeDevice: cond_wait\n");
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2005-03-17 00:05:25 +01:00
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pthread_cond_wait(&od->condition, &od->mutex);
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}
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pthread_mutex_unlock(&od->mutex);
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2005-03-17 00:11:08 +01:00
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DEBUG("stopping au\n");
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2005-03-17 00:05:25 +01:00
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AudioOutputUnitStop(od->au);
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2005-03-17 00:11:08 +01:00
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DEBUG("closing au\n");
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2005-03-17 00:05:25 +01:00
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CloseComponent(od->au);
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AudioUnitUninitialize(od->au);
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2005-03-13 20:23:09 +01:00
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2005-03-17 00:11:08 +01:00
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DEBUG("Leaving osx_closeDevice\n");
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2005-03-13 20:23:09 +01:00
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audioOutput->open = 0;
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}
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2005-03-16 05:46:41 +01:00
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static OSStatus osx_render(void * vdata,
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AudioUnitRenderActionFlags *ioActionFlags,
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const AudioTimeStamp * inTimeStamp,
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UInt32 inBusNumber, UInt32 inNumberFrames,
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AudioBufferList *bufferList)
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2005-03-14 05:30:32 +01:00
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{
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OsxData * od = (OsxData *)vdata;
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2005-03-16 05:46:41 +01:00
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AudioBuffer * buffer = &bufferList->mBuffers[0];
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int bufferSize = buffer->mDataByteSize;
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int bytesToCopy;
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2005-03-14 05:30:32 +01:00
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int curpos = 0;
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pthread_mutex_lock(&od->mutex);
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while((od->go || od->len) && bufferSize) {
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while(od->go && od->len < bufferSize &&
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od->len < BUFFER_SIZE)
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{
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2005-03-16 05:46:41 +01:00
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pthread_cond_signal(&od->condition);
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2005-03-14 05:30:32 +01:00
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pthread_cond_wait(&od->condition, &od->mutex);
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}
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2005-03-16 05:46:41 +01:00
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bytesToCopy = od->len < bufferSize ? od->len : bufferSize;
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bufferSize -= bytesToCopy;
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od->len -= bytesToCopy;
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2005-03-14 05:30:32 +01:00
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2005-03-16 05:46:41 +01:00
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if(od->pos+bytesToCopy > BUFFER_SIZE) {
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int bytes = BUFFER_SIZE-od->pos;
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memcpy(buffer->mData+curpos, od->buffer+od->pos, bytes);
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2005-03-14 05:30:32 +01:00
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od->pos = 0;
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2005-03-16 05:46:41 +01:00
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curpos += bytes;
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bytesToCopy -= bytes;
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2005-03-14 05:30:32 +01:00
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}
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2005-03-16 05:46:41 +01:00
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assert(bytesToCopy);
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memcpy(buffer->mData+curpos, od->buffer+od->pos, bytesToCopy);
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od->pos += bytesToCopy;
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curpos += bytesToCopy;
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if(od->pos >= BUFFER_SIZE) od->pos = 0;
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2005-03-14 05:30:32 +01:00
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}
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if(bufferSize) {
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2005-03-16 05:46:41 +01:00
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memset(buffer->mData+curpos, 0, bufferSize);
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2005-03-14 05:30:32 +01:00
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}
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pthread_cond_signal(&od->condition);
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2005-03-16 05:46:41 +01:00
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pthread_mutex_unlock(&od->mutex);
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2005-03-14 05:30:32 +01:00
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return 0;
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}
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2005-03-13 20:23:09 +01:00
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static int osx_openDevice(AudioOutput * audioOutput) {
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2005-03-14 05:30:32 +01:00
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OsxData * od = (OsxData *)audioOutput->data;
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2005-03-16 05:46:41 +01:00
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ComponentDescription desc;
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Component comp;
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AURenderCallbackStruct callback;
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2005-03-14 05:30:32 +01:00
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AudioFormat * audioFormat = &audioOutput->outAudioFormat;
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2005-03-16 05:46:41 +01:00
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AudioStreamBasicDescription streamDesc;
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desc.componentType = kAudioUnitType_Output;
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desc.componentSubType = kAudioUnitSubType_DefaultOutput;
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desc.componentManufacturer = kAudioUnitManufacturer_Apple;
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desc.componentFlags = 0;
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desc.componentFlagsMask = 0;
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DEBUG("finding component\n");
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comp = FindNextComponent(NULL, &desc);
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if(comp == 0) {
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ERROR("Error finding OS X component\n");
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2005-03-14 05:30:32 +01:00
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return -1;
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}
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2005-03-16 05:46:41 +01:00
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DEBUG("opening component\n");
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if(OpenAComponent(comp, &od->au) != noErr) {
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ERROR("Unable to open OS X component\n");
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2005-03-14 05:30:32 +01:00
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return -1;
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}
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2005-03-16 05:46:41 +01:00
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DEBUG("initializing au\n");
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if(AudioUnitInitialize(od->au) != 0) {
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CloseComponent(od->au);
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ERROR("Unable to initialuze OS X audio unit\n");
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return -1;
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}
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callback.inputProc = osx_render;
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callback.inputProcRefCon = od;
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DEBUG("set callback\n");
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if(AudioUnitSetProperty(od->au, kAudioUnitProperty_SetRenderCallback,
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kAudioUnitScope_Input, 0,
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&callback, sizeof(callback)) != 0)
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{
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AudioUnitUninitialize(od->au);
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CloseComponent(od->au);
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ERROR("unable to set callbak for OS X audio unit\n");
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return -1;
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}
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2005-03-14 05:30:32 +01:00
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2005-03-16 05:46:41 +01:00
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streamDesc.mSampleRate = audioFormat->sampleRate;
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streamDesc.mFormatID = kAudioFormatLinearPCM;
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streamDesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger |
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kLinearPCMFormatFlagIsBigEndian;
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streamDesc.mBytesPerPacket = audioFormat->channels*audioFormat->bits/8;
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streamDesc.mFramesPerPacket = 1;
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streamDesc.mBytesPerFrame = streamDesc.mBytesPerPacket;
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streamDesc.mChannelsPerFrame = audioFormat->channels;
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streamDesc.mBitsPerChannel = audioFormat->bits;
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DEBUG("set format\n");
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if(AudioUnitSetProperty(od->au, kAudioUnitProperty_StreamFormat,
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kAudioUnitScope_Input, 0,
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&streamDesc, sizeof(streamDesc)) != 0)
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{
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AudioUnitUninitialize(od->au);
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CloseComponent(od->au);
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ERROR("Unable to set format on OS X device\n");
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return -1;
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}
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DEBUG("start\n");
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int err = AudioOutputUnitStart(od->au);
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2005-03-14 05:30:32 +01:00
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if(err) {
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2005-03-16 05:46:41 +01:00
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ERROR("unable to start audio output: %i\n", err);
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2005-03-14 05:30:32 +01:00
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return -1;
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}
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od->go = 1;
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od->pos = 0;
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od->len = 0;
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2005-03-13 20:23:09 +01:00
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audioOutput->open = 1;
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2005-03-16 05:46:41 +01:00
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DEBUG("opened OS X device\n");
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2005-03-13 20:23:09 +01:00
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return 0;
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}
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static int osx_play(AudioOutput * audioOutput, char * playChunk, int size) {
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2005-03-14 05:30:32 +01:00
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OsxData * od = (OsxData *)audioOutput->data;
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2005-03-16 05:46:41 +01:00
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int bytesToCopy;
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int curpos;
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2005-03-14 05:30:32 +01:00
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pthread_mutex_lock(&od->mutex);
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2005-03-16 05:46:41 +01:00
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curpos = od->pos+od->len;
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if(curpos >= BUFFER_SIZE) curpos -= BUFFER_SIZE;
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2005-03-14 05:30:32 +01:00
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while(size) {
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2005-03-16 05:46:41 +01:00
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while(od->len >= BUFFER_SIZE) {
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if(curpos!=od->pos) {
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DEBUG("%i != %i\n", curpos, od->pos);
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abort();
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2005-03-14 05:30:32 +01:00
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}
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2005-03-16 05:46:41 +01:00
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pthread_cond_signal(&od->condition);
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2005-03-14 05:30:32 +01:00
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pthread_cond_wait(&od->condition, &od->mutex);
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}
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2005-03-16 05:46:41 +01:00
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bytesToCopy = BUFFER_SIZE - od->len;
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bytesToCopy = bytesToCopy < size ? bytesToCopy : size;
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size -= bytesToCopy;
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od->len += bytesToCopy;
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if(curpos+bytesToCopy > BUFFER_SIZE) {
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int bytes = BUFFER_SIZE-curpos;
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memcpy(od->buffer+curpos, playChunk, bytes);
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curpos = 0;
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playChunk += bytes;
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bytesToCopy -= bytes;
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2005-03-14 05:30:32 +01:00
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}
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2005-03-16 05:46:41 +01:00
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assert(bytesToCopy);
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memcpy(od->buffer+curpos, playChunk, bytesToCopy);
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curpos += bytesToCopy;
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playChunk += bytesToCopy;
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if(curpos >= BUFFER_SIZE) curpos = 0;
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2005-03-14 05:30:32 +01:00
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}
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pthread_cond_signal(&od->condition);
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2005-03-16 05:46:41 +01:00
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pthread_mutex_unlock(&od->mutex);
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2005-03-13 20:23:09 +01:00
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return 0;
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}
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AudioOutputPlugin osxPlugin =
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{
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"osx",
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2005-03-13 22:33:55 +01:00
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osx_testDefault,
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2005-03-13 20:23:09 +01:00
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osx_initDriver,
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osx_finishDriver,
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osx_openDevice,
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osx_play,
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osx_dropBufferedAudio,
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osx_closeDevice,
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NULL /* sendMetadataFunc */
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};
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#else
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#include <stdio.h>
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AudioOutputPlugin osxPlugin =
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|
|
{
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|