broken os x output
git-svn-id: https://svn.musicpd.org/mpd/trunk@3082 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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Warren Dukes
parent
593e1343da
commit
f723517057
@ -25,14 +25,76 @@
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#include <CoreAudio/AudioHardware.h>
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#include <stdlib.h>
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#include <pthread.h>
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#define BUFFER_SIZE 1024
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typedef struct _OsxData {
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AudioDeviceID deviceID;
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AudioDeviceID deviceID;
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AudioStreamBasicDescription streamDesc;
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pthread_mutex_t mutex;
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pthread_cond_t condition;
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Float32 buffer[BUFFER_SIZE];
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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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} OsxData;
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static void printError(OSStatus val) {
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switch(val) {
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case kAudioHardwareNoError:
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ERROR("kAudioHardwareNoErr");
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break;
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case kAudioHardwareNotRunningError:
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ERROR("kAudioHardwareNotRunningError");
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break;
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case kAudioHardwareUnspecifiedError:
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ERROR("kAudioHardwareUnspecifiedError");
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break;
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case kAudioHardwareUnknownPropertyError:
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ERROR("kAudioHardwareUnknownPropertyError");
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break;
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case kAudioHardwareBadPropertySizeError:
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ERROR("kAudioHardwareBadPropertySizeError");
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break;
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case kAudioHardwareIllegalOperationError:
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ERROR("kAudioHardwareIllegalOperationError");
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break;
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case kAudioHardwareBadDeviceError:
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ERROR("kAudioHardwareBadDeviceError");
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break;
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case kAudioHardwareBadStreamError:
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ERROR("kAudioHardwareBadStreamError");
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break;
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case kAudioHardwareUnsupportedOperationError:
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ERROR("kAudioHardwareUnsupportedOperationError");
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break;
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case kAudioDeviceUnsupportedFormatError:
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ERROR("kAudioDeviceUnsupportedFormatError");
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break;
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case kAudioDevicePermissionsError:
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ERROR("kAudioDevicePermissionsError");
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break;
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default:
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ERROR("unknown");
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break;
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}
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}
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static OsxData * newOsxData() {
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OsxData * ret = malloc(sizeof(OsxData));
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ret->deviceID = kAudioDeviceUnknown;
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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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return ret;
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}
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@ -79,18 +141,198 @@ static void osx_closeDevice(AudioOutput * audioOutput) {
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audioOutput->open = 0;
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}
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static OSStatus osx_IOProc(AudioDeviceID deviceID,
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const AudioTimeStamp * inNow, const AudioBufferList *inData,
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const AudioTimeStamp * inInputTime, AudioBufferList *outData,
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const AudioTimeStamp * inOutputTime, void * vdata)
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{
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OsxData * od = (OsxData *)vdata;
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AudioBuffer * buffer = &outData->mBuffers[0];
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int bufferSize = buffer->mDataByteSize/sizeof(Float32);
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int floatsToCopy;
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int curpos = 0;
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DEBUG("entering IOProc\n");
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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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pthread_cond_wait(&od->condition, &od->mutex);
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}
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floatsToCopy = od->len < bufferSize ? od->len : bufferSize;
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bufferSize -= floatsToCopy;
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if(od->pos+floatsToCopy > BUFFER_SIZE) {
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int floats = BUFFER_SIZE-od->pos;
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memcpy(buffer->mData+curpos, od->buffer+od->pos,
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floats*sizeof(Float32));
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od->len -= floats;
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od->pos = 0;
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curpos += floats;
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floatsToCopy -= floats;
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}
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memcpy(buffer->mData+curpos, od->buffer+od->pos,
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floatsToCopy*sizeof(Float32));
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od->len -= floatsToCopy;
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od->pos += floatsToCopy;
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curpos += floatsToCopy;
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}
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if(bufferSize) {
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memset(buffer->mData+curpos, 0, bufferSize*sizeof(Float32));
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}
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pthread_mutex_unlock(&od->mutex);
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pthread_cond_signal(&od->condition);
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DEBUG("exiting IOProc\n");
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return 0;
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}
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static int osx_openDevice(AudioOutput * audioOutput) {
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//OsxData * od = (OsxData *)audioOutput->data;
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int err;
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OsxData * od = (OsxData *)audioOutput->data;
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UInt32 propertySize;
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AudioFormat * audioFormat = &audioOutput->outAudioFormat;
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UInt32 bufferByteCount = 8192;
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propertySize = sizeof(od->deviceID);
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err = AudioHardwareGetProperty(
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kAudioHardwarePropertyDefaultOutputDevice,
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&propertySize, &od->deviceID);
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if(err || od->deviceID == kAudioDeviceUnknown) {
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ERROR("Not able to get the default OS X device\n");
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return -1;
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}
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od->streamDesc.mFormatID = kAudioFormatLinearPCM;
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od->streamDesc.mSampleRate = audioFormat->sampleRate;
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od->streamDesc.mFormatFlags = kLinearPCMFormatFlagIsFloat |
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kLinearPCMFormatFlagIsBigEndian |
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kLinearPCMFormatFlagIsPacked;
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od->streamDesc.mBytesPerPacket = audioFormat->channels*sizeof(Float32);
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od->streamDesc.mFramesPerPacket = 1;
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od->streamDesc.mBytesPerFrame = audioFormat->channels*sizeof(Float32);
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od->streamDesc.mChannelsPerFrame = audioFormat->channels;
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od->streamDesc.mBitsPerChannel = 8 * sizeof(Float32);
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audioFormat->bits = 16;
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propertySize = sizeof(od->streamDesc);
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err = AudioDeviceSetProperty(od->deviceID, 0, 0, false,
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kAudioDevicePropertyStreamFormat,
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propertySize, &od->streamDesc);
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if(err) {
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ERROR("unable to set format %i:%i:% on osx device\n",
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(int)audioFormat->sampleRate,
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(int)audioFormat->bits,
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(int)audioFormat->channels);
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return -1;
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}
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propertySize = sizeof(UInt32);
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err = AudioDeviceSetProperty(od->deviceID, 0, 0, false,
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kAudioDevicePropertyBufferSize,
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propertySize, &bufferByteCount);
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err = AudioDeviceAddIOProc(od->deviceID, osx_IOProc, od);
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if(err) {
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ERROR("error adding IOProc\n");
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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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audioOutput->open = 1;
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return 0;
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}
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static void copyIntBufferToFloat(char * playChunk, int size, float * buffer,
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int floats)
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{
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/* this is for 16-bit audio only */
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SInt16 * sample;
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while(floats) {
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sample = (SInt16 *)playChunk;
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*buffer = *sample/32767.0;
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playChunk += 2;
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buffer++;
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floats--;
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}
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}
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static int osx_play(AudioOutput * audioOutput, char * playChunk, int size) {
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//OsxData * od = (OsxData *)audioOutput->data;
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OsxData * od = (OsxData *)audioOutput->data;
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int floatsToCopy;
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size /= 2;
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DEBUG("entering osx_play\n");
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pthread_mutex_lock(&od->mutex);
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DEBUG("entering while loop\n");
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while(size) {
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DEBUG("iterating loop with size = %i\n", size);
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while(od->len == BUFFER_SIZE) {
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if(!od->started) {
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OSStatus err = AudioDeviceStart(od->deviceID,
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osx_IOProc);
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DEBUG("start audio device\n");
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if(err) {
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printError(err);
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ERROR(" error doing AudioDeviceStart "
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"for osx device: %i\n",
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(int)err);
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pthread_mutex_unlock(&od->mutex);
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return -1;
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}
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od->started = 1;
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DEBUG("audio device started\n");
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}
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DEBUG("cond_wait\n");
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pthread_cond_wait(&od->condition, &od->mutex);
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}
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floatsToCopy = BUFFER_SIZE - od->len;
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floatsToCopy = floatsToCopy < size ? floatsToCopy : size;
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size -= floatsToCopy;
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if(od->pos+floatsToCopy > BUFFER_SIZE) {
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int floats = BUFFER_SIZE-od->pos;
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copyIntBufferToFloat(playChunk,
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audioOutput->outAudioFormat.bits/8,
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od->buffer,
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floats);
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od->pos = 0;
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od->len += floats;
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playChunk += floats*sizeof(Float32);
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}
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copyIntBufferToFloat(playChunk,
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audioOutput->outAudioFormat.bits/8,
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od->buffer,
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floatsToCopy);
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od->pos += floatsToCopy;
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od->len += floatsToCopy;
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playChunk += floatsToCopy*sizeof(Float32);
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}
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pthread_mutex_unlock(&od->mutex);
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pthread_cond_signal(&od->condition);
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DEBUG("exiting osx_play\n");
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return 0;
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}
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