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https://github.com/ZDoom/fluidsynth.git
synced 2024-11-10 06:51:54 +00:00
Enable the 'synth.audio-channels' setting for the CoreAudio driver.
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parent
5dcae73657
commit
49a3b410f0
1 changed files with 21 additions and 35 deletions
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@ -52,7 +52,7 @@ typedef struct
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fluid_audio_func_t callback;
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void *data;
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unsigned int buffer_size;
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float *buffers[2];
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float **buffers;
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double phase;
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} fluid_core_audio_driver_t;
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@ -171,7 +171,7 @@ new_fluid_core_audio_driver2(fluid_settings_t *settings, fluid_audio_func_t func
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{
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char *devname = NULL;
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fluid_core_audio_driver_t *dev = NULL;
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int period_size, periods;
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int period_size, periods, audio_channels = 1;
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double sample_rate;
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OSStatus status;
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UInt32 size;
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@ -245,10 +245,14 @@ new_fluid_core_audio_driver2(fluid_settings_t *settings, fluid_audio_func_t func
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goto error_recovery;
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}
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fluid_settings_getint(settings, "synth.audio-channels", &audio_channels);
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fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
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fluid_settings_getint(settings, "audio.periods", &periods);
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fluid_settings_getint(settings, "audio.period-size", &period_size);
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/* audio channels are in stereo, with a minimum of one pair */
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audio_channels = (audio_channels > 0) ? (2 * audio_channels) : 2;
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/* get the selected device name. if none is specified, use NULL for the default device. */
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if(fluid_settings_dupstr(settings, "audio.coreaudio.device", &devname) == FLUID_OK /* alloc device name */
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&& devname && strlen(devname) > 0)
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@ -303,11 +307,11 @@ new_fluid_core_audio_driver2(fluid_settings_t *settings, fluid_audio_func_t func
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// necessary from our format to the device's format.
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dev->format.mSampleRate = sample_rate; // sample rate of the audio stream
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dev->format.mFormatID = kAudioFormatLinearPCM; // encoding type of the audio stream
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dev->format.mFormatFlags = kLinearPCMFormatFlagIsFloat;
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dev->format.mBytesPerPacket = 2 * sizeof(float);
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dev->format.mFormatFlags = kLinearPCMFormatFlagIsFloat | kAudioFormatFlagIsNonInterleaved;
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dev->format.mBytesPerPacket = sizeof(float);
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dev->format.mFramesPerPacket = 1;
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dev->format.mBytesPerFrame = 2 * sizeof(float);
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dev->format.mChannelsPerFrame = 2;
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dev->format.mBytesPerFrame = sizeof(float);
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dev->format.mChannelsPerFrame = audio_channels;
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dev->format.mBitsPerChannel = 8 * sizeof(float);
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FLUID_LOG(FLUID_DBG, "mSampleRate %g", dev->format.mSampleRate);
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@ -346,10 +350,9 @@ new_fluid_core_audio_driver2(fluid_settings_t *settings, fluid_audio_func_t func
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FLUID_LOG(FLUID_DBG, "MaximumFramesPerSlice = %d", dev->buffer_size);
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dev->buffers[0] = FLUID_ARRAY(float, dev->buffer_size);
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dev->buffers[1] = FLUID_ARRAY(float, dev->buffer_size);
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dev->buffers = FLUID_ARRAY(float *, audio_channels);
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if(dev->buffers[0] == NULL || dev->buffers[1] == NULL)
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if(dev->buffers == NULL)
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{
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FLUID_LOG(FLUID_ERR, "Out of memory.");
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goto error_recovery;
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@ -396,14 +399,9 @@ delete_fluid_core_audio_driver(fluid_audio_driver_t *p)
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AudioComponentInstanceDispose(dev->outputUnit);
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#endif
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if(dev->buffers[0])
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if(dev->buffers != NULL)
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{
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FLUID_FREE(dev->buffers[0]);
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}
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if(dev->buffers[1])
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{
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FLUID_FREE(dev->buffers[1]);
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FLUID_FREE(dev->buffers);
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}
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FLUID_FREE(dev);
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@ -417,30 +415,18 @@ fluid_core_audio_callback(void *data,
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UInt32 inNumberFrames,
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AudioBufferList *ioData)
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{
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int i, k;
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fluid_core_audio_driver_t *dev = (fluid_core_audio_driver_t *) data;
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int len = inNumberFrames;
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float *buffer = ioData->mBuffers[0].mData;
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UInt32 i, nBuffers = ioData->mNumberBuffers;
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fluid_audio_func_t callback = (dev->callback != NULL) ? dev->callback : (fluid_audio_func_t) fluid_synth_process;
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if(dev->callback)
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for(i = 0; i < ioData->mNumberBuffers; i++)
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{
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float *left = dev->buffers[0];
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float *right = dev->buffers[1];
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FLUID_MEMSET(left, 0, len * sizeof(float));
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FLUID_MEMSET(right, 0, len * sizeof(float));
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(*dev->callback)(dev->data, len, 0, NULL, 2, dev->buffers);
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for(i = 0, k = 0; i < len; i++)
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{
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buffer[k++] = left[i];
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buffer[k++] = right[i];
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}
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dev->buffers[i] = ioData->mBuffers[i].mData;
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FLUID_MEMSET(dev->buffers[i], 0, len * sizeof(float));
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}
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else
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fluid_synth_write_float((fluid_synth_t *) dev->data, len, buffer, 0, 2,
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buffer, 1, 2);
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callback(dev->data, len, nBuffers, dev->buffers, nBuffers, dev->buffers);
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return noErr;
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}
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