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Updated mini_al

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Ray 6 lat temu
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2 zmienionych plików z 347 dodań i 127 usunięć
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  1. +0
    -1
      src/external/mini_al.c
  2. +347
    -126
      src/external/mini_al.h

+ 0
- 1
src/external/mini_al.c Wyświetl plik

@ -3,6 +3,5 @@
#define MINI_AL_IMPLEMENTATION
#define MAL_NO_JACK
#define MAL_NO_OPENAL
#define MAL_NO_SDL
#define MAL_NO_NULL
#include "mini_al.h"

+ 347
- 126
src/external/mini_al.h Wyświetl plik

@ -1,5 +1,5 @@
// Audio playback and capture library. Public domain. See "unlicense" statement at the end of this file.
// mini_al - v0.8.8 - 2018-09-14
// mini_al - v0.8.10 - 2018-10-21
//
// David Reid - davidreidsoftware@gmail.com
@ -1114,6 +1114,11 @@ void mal_pcm_f32_to_s24(void* pOut, const void* pIn, mal_uint64 count, mal_dithe
void mal_pcm_f32_to_s32(void* pOut, const void* pIn, mal_uint64 count, mal_dither_mode ditherMode);
void mal_pcm_convert(void* pOut, mal_format formatOut, const void* pIn, mal_format formatIn, mal_uint64 sampleCount, mal_dither_mode ditherMode);
// Deinterleaves an interleaved buffer.
void mal_deinterleave_pcm_frames(mal_format format, mal_uint32 channels, mal_uint32 frameCount, const void* pInterleavedPCMFrames, void** ppDeinterleavedPCMFrames);
// Interleaves a group of deinterleaved buffers.
void mal_interleave_pcm_frames(mal_format format, mal_uint32 channels, mal_uint32 frameCount, const void** ppDeinterleavedPCMFrames, void* pInterleavedPCMFrames);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@ -1629,6 +1634,7 @@ struct mal_context
mal_proc pa_stream_get_sample_spec;
mal_proc pa_stream_get_channel_map;
mal_proc pa_stream_get_buffer_attr;
mal_proc pa_stream_set_buffer_attr;
mal_proc pa_stream_get_device_name;
mal_proc pa_stream_set_write_callback;
mal_proc pa_stream_set_read_callback;
@ -4864,7 +4870,7 @@ mal_bool32 mal_device__get_current_frame__null(mal_device* pDevice, mal_uint32*
mal_assert(pCurrentPos != NULL);
*pCurrentPos = 0;
mal_uint64 currentFrameAbs = (mal_uint64)(mal_timer_get_time_in_seconds(&pDevice->null_device.timer) * pDevice->sampleRate) / pDevice->channels;
mal_uint64 currentFrameAbs = (mal_uint64)(mal_timer_get_time_in_seconds(&pDevice->null_device.timer) * pDevice->sampleRate);
*pCurrentPos = (mal_uint32)(currentFrameAbs % pDevice->bufferSizeInFrames);
return MAL_TRUE;
@ -4917,11 +4923,11 @@ mal_uint32 mal_device__wait_for_frames__null(mal_device* pDevice)
while (!pDevice->null_device.breakFromMainLoop) {
mal_uint32 framesAvailable = mal_device__get_available_frames__null(pDevice);
if (framesAvailable > 0) {
if (framesAvailable >= (pDevice->bufferSizeInFrames/pDevice->periods)) {
return framesAvailable;
}
mal_sleep(mi">16);
mal_sleep(n">pDevice->bufferSizeInMilliseconds/pDevice->periods);
}
// We'll get here if the loop was terminated. Just return whatever's available.
@ -11784,6 +11790,7 @@ typedef mal_pa_stream_state_t (* mal_pa_stream_get_state_proc)
typedef const mal_pa_sample_spec* (* mal_pa_stream_get_sample_spec_proc) (mal_pa_stream* s);
typedef const mal_pa_channel_map* (* mal_pa_stream_get_channel_map_proc) (mal_pa_stream* s);
typedef const mal_pa_buffer_attr* (* mal_pa_stream_get_buffer_attr_proc) (mal_pa_stream* s);
typedef mal_pa_operation* (* mal_pa_stream_set_buffer_attr_proc) (mal_pa_stream* s, const mal_pa_buffer_attr* attr, mal_pa_stream_success_cb_t cb, void* userdata);
typedef const char* (* mal_pa_stream_get_device_name_proc) (mal_pa_stream* s);
typedef void (* mal_pa_stream_set_write_callback_proc) (mal_pa_stream* s, mal_pa_stream_request_cb_t cb, void* userdata);
typedef void (* mal_pa_stream_set_read_callback_proc) (mal_pa_stream* s, mal_pa_stream_request_cb_t cb, void* userdata);
@ -12305,6 +12312,10 @@ void mal_pulse_device_write_callback(mal_pa_stream* pStream, size_t sizeInBytes,
mal_context* pContext = pDevice->pContext;
mal_assert(pContext != NULL);
#ifdef MAL_DEBUG_OUTPUT
printf("[PulseAudio] write_callback: sizeInBytes=%d\n", (int)sizeInBytes);
#endif
size_t bytesRemaining = sizeInBytes;
while (bytesRemaining > 0) {
size_t bytesToReadFromClient = bytesRemaining;
@ -12319,19 +12330,35 @@ void mal_pulse_device_write_callback(mal_pa_stream* pStream, size_t sizeInBytes,
return;
}
#ifdef MAL_DEBUG_OUTPUT
printf(" bytesToReadFromClient=%d", (int)bytesToReadFromClient);
#endif
if (pBuffer != NULL && bytesToReadFromClient > 0) {
mal_uint32 framesToReadFromClient = (mal_uint32)bytesToReadFromClient / (pDevice->internalChannels*mal_get_bytes_per_sample(pDevice->internalFormat));
if (framesToReadFromClient > 0) {
mal_device__read_frames_from_client(pDevice, framesToReadFromClient, pBuffer);
#ifdef MAL_DEBUG_OUTPUT
printf(", framesToReadFromClient=%d\n", (int)framesToReadFromClient);
#endif
error = ((mal_pa_stream_write_proc)pContext->pulse.pa_stream_write)((mal_pa_stream*)pDevice->pulse.pStream, pBuffer, bytesToReadFromClient, NULL, 0, MAL_PA_SEEK_RELATIVE);
if (error < 0) {
mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[PulseAudio] Failed to write data to the PulseAudio stream.", mal_result_from_pulse(error));
return;
}
} else {
#ifdef MAL_DEBUG_OUTPUT
printf(", framesToReadFromClient=0\n");
#endif
}
bytesRemaining -= bytesToReadFromClient;
} else {
#ifdef MAL_DEBUG_OUTPUT
printf(", framesToReadFromClient=0\n");
#endif
}
}
}
@ -12460,6 +12487,7 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
mal_pa_sample_spec ss;
mal_pa_channel_map cmap;
mal_pa_buffer_attr attr;
mal_pa_stream_flags_t streamFlags;
const mal_pa_sample_spec* pActualSS = NULL;
const mal_pa_channel_map* pActualCMap = NULL;
@ -12533,53 +12561,6 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
((mal_pa_operation_unref_proc)pContext->pulse.pa_operation_unref)(pOP);
}
#if 0
mal_pa_sample_spec deviceSS;
mal_pa_channel_map deviceCMap;
if (type == mal_device_type_playback) {
deviceSS = sinkInfo.sample_spec;
deviceCMap = sinkInfo.channel_map;
} else {
deviceSS = sourceInfo.sample_spec;
deviceCMap = sourceInfo.channel_map;
}
if (pDevice->usingDefaultFormat) {
ss.format = deviceSS.format;
} else {
ss.format = mal_format_to_pulse(pConfig->format);
}
if (ss.format == MAL_PA_SAMPLE_INVALID) {
ss.format = MAL_PA_SAMPLE_S16LE;
}
if (pDevice->usingDefaultChannels) {
ss.channels = deviceSS.channels;
} else {
ss.channels = pConfig->channels;
}
if (pDevice->usingDefaultSampleRate) {
ss.rate = deviceSS.rate;
} else {
ss.rate = pConfig->sampleRate;
}
if (pDevice->usingDefaultChannelMap) {
cmap = deviceCMap;
} else {
cmap.channels = pConfig->channels;
for (mal_uint32 iChannel = 0; iChannel < pConfig->channels; ++iChannel) {
cmap.map[iChannel] = mal_channel_position_to_pulse(pConfig->channelMap[iChannel]);
}
if (((mal_pa_channel_map_valid_proc)pContext->pulse.pa_channel_map_valid)(&cmap) == 0 || ((mal_pa_channel_map_compatible_proc)pContext->pulse.pa_channel_map_compatible)(&cmap, &ss) == 0) {
((mal_pa_channel_map_init_extend_proc)pContext->pulse.pa_channel_map_init_extend)(&cmap, ss.channels, MAL_PA_CHANNEL_MAP_DEFAULT); // The channel map is invalid, so just fall back to the default.
}
}
#else
if (type == mal_device_type_playback) {
ss = sinkInfo.sample_spec;
cmap = sinkInfo.channel_map;
@ -12587,7 +12568,7 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
ss = sourceInfo.sample_spec;
cmap = sourceInfo.channel_map;
}
#endif
// Buffer size.
bufferSizeInFrames = pDevice->bufferSizeInFrames;
@ -12606,10 +12587,14 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
}
attr.maxlength = bufferSizeInFrames * mal_get_bytes_per_sample(mal_format_from_pulse(ss.format))*ss.channels;
attr.tlength = attr.maxlength / pConfig->periods;
attr.tlength = attr.maxlength;
attr.prebuf = (mal_uint32)-1;
attr.minreq = attr.tlength;
attr.fragsize = attr.tlength;
attr.minreq = attr.maxlength / pConfig->periods;
attr.fragsize = attr.maxlength / pConfig->periods;
#ifdef MAL_DEBUG_OUTPUT
printf("[PulseAudio] attr: maxlength=%d, tlength=%d, prebuf=%d, minreq=%d, fragsize=%d; bufferSizeInFrames=%d\n", attr.maxlength, attr.tlength, attr.prebuf, attr.minreq, attr.fragsize, bufferSizeInFrames);
#endif
char streamName[256];
if (pConfig->pulse.pStreamName != NULL) {
@ -12628,11 +12613,15 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
}
streamFlags = MAL_PA_STREAM_START_CORKED;
if (dev != NULL) {
streamFlags |= MAL_PA_STREAM_DONT_MOVE | MAL_PA_STREAM_FIX_FORMAT | MAL_PA_STREAM_FIX_RATE | MAL_PA_STREAM_FIX_CHANNELS;
}
if (type == mal_device_type_playback) {
error = ((mal_pa_stream_connect_playback_proc)pContext->pulse.pa_stream_connect_playback)((mal_pa_stream*)pDevice->pulse.pStream, dev, &attr, MAL_PA_STREAM_START_CORKED, NULL, NULL);
error = ((mal_pa_stream_connect_playback_proc)pContext->pulse.pa_stream_connect_playback)((mal_pa_stream*)pDevice->pulse.pStream, dev, &attr, streamFlags, NULL, NULL);
} else {
error = ((mal_pa_stream_connect_record_proc)pContext->pulse.pa_stream_connect_record)((mal_pa_stream*)pDevice->pulse.pStream, dev, &attr, MAL_PA_STREAM_START_CORKED);
error = ((mal_pa_stream_connect_record_proc)pContext->pulse.pa_stream_connect_record)((mal_pa_stream*)pDevice->pulse.pStream, dev, &attr, streamFlags);
}
if (error != MAL_PA_OK) {
@ -12652,6 +12641,21 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
// Internal format.
pActualSS = ((mal_pa_stream_get_sample_spec_proc)pContext->pulse.pa_stream_get_sample_spec)((mal_pa_stream*)pDevice->pulse.pStream);
if (pActualSS != NULL) {
// If anything has changed between the requested and the actual sample spec, we need to update the buffer.
if (ss.format != pActualSS->format || ss.channels != pActualSS->channels || ss.rate != pActualSS->rate) {
attr.maxlength = bufferSizeInFrames * mal_get_bytes_per_sample(mal_format_from_pulse(pActualSS->format))*pActualSS->channels;
attr.tlength = attr.maxlength;
attr.prebuf = (mal_uint32)-1;
attr.minreq = attr.maxlength / pConfig->periods;
attr.fragsize = attr.maxlength / pConfig->periods;
pOP = ((mal_pa_stream_set_buffer_attr_proc)pContext->pulse.pa_stream_set_buffer_attr)((mal_pa_stream*)pDevice->pulse.pStream, &attr, NULL, NULL);
if (pOP != NULL) {
mal_device__wait_for_operation__pulse(pDevice, pOP);
((mal_pa_operation_unref_proc)pContext->pulse.pa_operation_unref)(pOP);
}
}
ss = *pActualSS;
}
@ -12680,6 +12684,10 @@ mal_result mal_device_init__pulse(mal_context* pContext, mal_device_type type, c
pDevice->bufferSizeInFrames = attr.maxlength / (mal_get_bytes_per_sample(pDevice->internalFormat)*pDevice->internalChannels);
pDevice->periods = attr.maxlength / attr.tlength;
#ifdef MAL_DEBUG_OUTPUT
printf("[PulseAudio] actual attr: maxlength=%d, tlength=%d, prebuf=%d, minreq=%d, fragsize=%d; pDevice->bufferSizeInFrames=%d\n", attr.maxlength, attr.tlength, attr.prebuf, attr.minreq, attr.fragsize, pDevice->bufferSizeInFrames);
#endif
// Grab the name of the device if we can.
dev = ((mal_pa_stream_get_device_name_proc)pContext->pulse.pa_stream_get_device_name)((mal_pa_stream*)pDevice->pulse.pStream);
@ -12930,6 +12938,7 @@ mal_result mal_context_init__pulse(mal_context* pContext)
pContext->pulse.pa_stream_get_sample_spec = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_get_sample_spec");
pContext->pulse.pa_stream_get_channel_map = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_get_channel_map");
pContext->pulse.pa_stream_get_buffer_attr = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_get_buffer_attr");
pContext->pulse.pa_stream_set_buffer_attr = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_set_buffer_attr");
pContext->pulse.pa_stream_get_device_name = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_get_device_name");
pContext->pulse.pa_stream_set_write_callback = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_set_write_callback");
pContext->pulse.pa_stream_set_read_callback = (mal_proc)mal_dlsym(pContext->pulse.pulseSO, "pa_stream_set_read_callback");
@ -12972,6 +12981,7 @@ mal_result mal_context_init__pulse(mal_context* pContext)
mal_pa_stream_get_sample_spec_proc _pa_stream_get_sample_spec = pa_stream_get_sample_spec;
mal_pa_stream_get_channel_map_proc _pa_stream_get_channel_map = pa_stream_get_channel_map;
mal_pa_stream_get_buffer_attr_proc _pa_stream_get_buffer_attr = pa_stream_get_buffer_attr;
mal_pa_stream_set_buffer_attr_proc _pa_stream_set_buffer_attr = pa_stream_set_buffer_attr;
mal_pa_stream_get_device_name_proc _pa_stream_get_device_name = pa_stream_get_device_name;
mal_pa_stream_set_write_callback_proc _pa_stream_set_write_callback = pa_stream_set_write_callback;
mal_pa_stream_set_read_callback_proc _pa_stream_set_read_callback = pa_stream_set_read_callback;
@ -13013,6 +13023,7 @@ mal_result mal_context_init__pulse(mal_context* pContext)
pContext->pulse.pa_stream_get_sample_spec = (mal_proc)_pa_stream_get_sample_spec;
pContext->pulse.pa_stream_get_channel_map = (mal_proc)_pa_stream_get_channel_map;
pContext->pulse.pa_stream_get_buffer_attr = (mal_proc)_pa_stream_get_buffer_attr;
pContext->pulse.pa_stream_set_buffer_attr = (mal_proc)_pa_stream_set_buffer_attr;
pContext->pulse.pa_stream_get_device_name = (mal_proc)_pa_stream_get_device_name;
pContext->pulse.pa_stream_set_write_callback = (mal_proc)_pa_stream_set_write_callback;
pContext->pulse.pa_stream_set_read_callback = (mal_proc)_pa_stream_set_read_callback;
@ -14900,27 +14911,62 @@ OSStatus mal_on_output__coreaudio(void* pUserData, AudioUnitRenderActionFlags* p
#if defined(MAL_DEBUG_OUTPUT)
printf("INFO: Output Callback: busNumber=%d, frameCount=%d, mNumberBuffers=%d\n", busNumber, frameCount, pBufferList->mNumberBuffers);
#endif
// We need to check whether or not we are outputting interleaved or non-interleaved samples. The
// way we do this is slightly different for each type.
mal_stream_layout layout = mal_stream_layout_interleaved;
if (pBufferList->mBuffers[0].mNumberChannels != pDevice->internalChannels) {
layout = mal_stream_layout_deinterleaved;
}
// For now we can assume everything is interleaved.
for (UInt32 iBuffer = 0; iBuffer < pBufferList->mNumberBuffers; ++iBuffer) {
if (pBufferList->mBuffers[iBuffer].mNumberChannels == pDevice->internalChannels) {
mal_uint32 frameCountForThisBuffer = pBufferList->mBuffers[iBuffer].mDataByteSize / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
if (frameCountForThisBuffer > 0) {
mal_device__read_frames_from_client(pDevice, frameCountForThisBuffer, pBufferList->mBuffers[iBuffer].mData);
if (layout == mal_stream_layout_interleaved) {
// For now we can assume everything is interleaved.
for (UInt32 iBuffer = 0; iBuffer < pBufferList->mNumberBuffers; ++iBuffer) {
if (pBufferList->mBuffers[iBuffer].mNumberChannels == pDevice->internalChannels) {
mal_uint32 frameCountForThisBuffer = pBufferList->mBuffers[iBuffer].mDataByteSize / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
if (frameCountForThisBuffer > 0) {
mal_device__read_frames_from_client(pDevice, frameCountForThisBuffer, pBufferList->mBuffers[iBuffer].mData);
}
#if defined(MAL_DEBUG_OUTPUT)
printf(" frameCount=%d, mNumberChannels=%d, mDataByteSize=%d\n", frameCount, pBufferList->mBuffers[iBuffer].mNumberChannels, pBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
} else {
// This case is where the number of channels in the output buffer do not match our internal channels. It could mean that it's
// not interleaved, in which case we can't handle right now since mini_al does not yet support non-interleaved streams. We just
// output silence here.
mal_zero_memory(pBufferList->mBuffers[iBuffer].mData, pBufferList->mBuffers[iBuffer].mDataByteSize);
#if defined(MAL_DEBUG_OUTPUT)
printf(" WARNING: Outputting silence. frameCount=%d, mNumberChannels=%d, mDataByteSize=%d\n", frameCount, pBufferList->mBuffers[iBuffer].mNumberChannels, pBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
}
}
} else {
// This is the deinterleaved case. We need to update each buffer in groups of internalChannels. This
// assumes each buffer is the same size.
mal_uint8 tempBuffer[4096];
for (UInt32 iBuffer = 0; iBuffer < pBufferList->mNumberBuffers; iBuffer += pDevice->internalChannels) {
mal_uint32 frameCountPerBuffer = pBufferList->mBuffers[iBuffer].mDataByteSize / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
#if defined(MAL_DEBUG_OUTPUT)
printf(" frameCount=%d, mNumberChannels=%d, mDataByteSize=%d\n", frameCount, pBufferList->mBuffers[iBuffer].mNumberChannels, pBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
} else {
// This case is where the number of channels in the output buffer do not match our internal channels. It could mean that it's
// not interleaved, in which case we can't handle right now since mini_al does not yet support non-interleaved streams. We just
// output silence here.
mal_zero_memory(pBufferList->mBuffers[iBuffer].mData, pBufferList->mBuffers[iBuffer].mDataByteSize);
#if defined(MAL_DEBUG_OUTPUT)
printf(" WARNING: Outputting silence. frameCount=%d, mNumberChannels=%d, mDataByteSize=%d\n", frameCount, pBufferList->mBuffers[iBuffer].mNumberChannels, pBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
mal_uint32 framesRemaining = frameCountPerBuffer;
while (framesRemaining > 0) {
mal_uint32 framesToRead = sizeof(tempBuffer) / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
if (framesToRead > framesRemaining) {
framesToRead = framesRemaining;
}
mal_device__read_frames_from_client(pDevice, framesToRead, tempBuffer);
void* ppDeinterleavedBuffers[MAL_MAX_CHANNELS];
for (mal_uint32 iChannel = 0; iChannel < pDevice->internalChannels; ++iChannel) {
ppDeinterleavedBuffers[iChannel] = (void*)mal_offset_ptr(pBufferList->mBuffers[iBuffer].mData, (frameCountPerBuffer - framesRemaining) * mal_get_bytes_per_sample(pDevice->internalFormat));
}
mal_deinterleave_pcm_frames(pDevice->internalFormat, pDevice->internalChannels, framesToRead, tempBuffer, ppDeinterleavedBuffers);
framesRemaining -= framesToRead;
}
}
}
@ -14941,6 +14987,13 @@ OSStatus mal_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
AudioBufferList* pRenderedBufferList = (AudioBufferList*)pDevice->coreaudio.pAudioBufferList;
mal_assert(pRenderedBufferList);
// We need to check whether or not we are outputting interleaved or non-interleaved samples. The
// way we do this is slightly different for each type.
mal_stream_layout layout = mal_stream_layout_interleaved;
if (pRenderedBufferList->mBuffers[0].mNumberChannels != pDevice->internalChannels) {
layout = mal_stream_layout_deinterleaved;
}
#if defined(MAL_DEBUG_OUTPUT)
printf("INFO: Input Callback: busNumber=%d, frameCount=%d, mNumberBuffers=%d\n", busNumber, frameCount, pRenderedBufferList->mNumberBuffers);
#endif
@ -14953,16 +15006,58 @@ OSStatus mal_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
return status;
}
// For now we can assume everything is interleaved.
for (UInt32 iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; ++iBuffer) {
if (pRenderedBufferList->mBuffers[iBuffer].mNumberChannels == pDevice->internalChannels) {
mal_device__send_frames_to_client(pDevice, frameCount, pRenderedBufferList->mBuffers[iBuffer].mData);
#if defined(MAL_DEBUG_OUTPUT)
printf(" mDataByteSize=%d\n", pRenderedBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
} else {
// This case is where the number of channels in the output buffer do not match our internal channels. It could mean that it's
// not interleaved, in which case we can't handle right now since mini_al does not yet support non-interleaved streams.
if (layout == mal_stream_layout_interleaved) {
for (UInt32 iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; ++iBuffer) {
if (pRenderedBufferList->mBuffers[iBuffer].mNumberChannels == pDevice->internalChannels) {
mal_device__send_frames_to_client(pDevice, frameCount, pRenderedBufferList->mBuffers[iBuffer].mData);
#if defined(MAL_DEBUG_OUTPUT)
printf(" mDataByteSize=%d\n", pRenderedBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
} else {
// This case is where the number of channels in the output buffer do not match our internal channels. It could mean that it's
// not interleaved, in which case we can't handle right now since mini_al does not yet support non-interleaved streams.
mal_uint8 silentBuffer[4096];
mal_zero_memory(silentBuffer, sizeof(silentBuffer));
mal_uint32 framesRemaining = frameCount;
while (framesRemaining > 0) {
mal_uint32 framesToSend = sizeof(silentBuffer) / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
if (framesToSend > framesRemaining) {
framesToSend = framesRemaining;
}
mal_device__send_frames_to_client(pDevice, framesToSend, silentBuffer);
framesRemaining -= framesToSend;
}
#if defined(MAL_DEBUG_OUTPUT)
printf(" WARNING: Outputting silence. frameCount=%d, mNumberChannels=%d, mDataByteSize=%d\n", frameCount, pRenderBufferList->mBuffers[iBuffer].mNumberChannels, pRenderBufferList->mBuffers[iBuffer].mDataByteSize);
#endif
}
}
} else {
// This is the deinterleaved case. We need to interleave the audio data before sending it to the client. This
// assumes each buffer is the same size.
mal_uint8 tempBuffer[4096];
for (UInt32 iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; iBuffer += pDevice->internalChannels) {
mal_uint32 framesRemaining = frameCount;
while (framesRemaining > 0) {
mal_uint32 framesToSend = sizeof(tempBuffer) / mal_get_bytes_per_frame(pDevice->internalFormat, pDevice->internalChannels);
if (framesToSend > framesRemaining) {
framesToSend = framesRemaining;
}
void* ppDeinterleavedBuffers[MAL_MAX_CHANNELS];
for (mal_uint32 iChannel = 0; iChannel < pDevice->internalChannels; ++iChannel) {
ppDeinterleavedBuffers[iChannel] = (void*)mal_offset_ptr(pRenderedBufferList->mBuffers[iBuffer].mData, (frameCount - framesRemaining) * mal_get_bytes_per_sample(pDevice->internalFormat));
}
mal_interleave_pcm_frames(pDevice->internalFormat, pDevice->internalChannels, framesToSend, (const void**)ppDeinterleavedBuffers, tempBuffer);
mal_device__send_frames_to_client(pDevice, framesToSend, tempBuffer);
framesRemaining -= framesToSend;
}
}
}
@ -14976,42 +15071,53 @@ void on_start_stop__coreaudio(void* pUserData, AudioUnit audioUnit, AudioUnitPro
mal_device* pDevice = (mal_device*)pUserData;
mal_assert(pDevice != NULL);
UInt32 isRunning;
UInt32 isRunningSize = sizeof(isRunning);
OSStatus status = ((mal_AudioUnitGetProperty_proc)pDevice->pContext->coreaudio.AudioUnitGetProperty)(audioUnit, kAudioOutputUnitProperty_IsRunning, scope, element, &isRunning, &isRunningSize);
if (status != noErr) {
return; // Don't really know what to do in this case... just ignore it, I suppose...
}
if (!isRunning) {
// The stop event is a bit annoying in Core Audio because it will be called when we automatically switch the default device. Some scenarios to consider:
//
// 1) When the device is unplugged, this will be called _before_ the default device change notification.
// 2) When the device is changed via the default device change notification, this will be called _after_ the switch.
//
// For case #1, we just check if there's a new default device available. If so, we just ignore the stop event. For case #2 we check a flag.
if (pDevice->isDefaultDevice && mal_device__get_state(pDevice) != MAL_STATE_STOPPING && mal_device__get_state(pDevice) != MAL_STATE_STOPPED) {
// It looks like the device is switching through an external event, such as the user unplugging the device or changing the default device
// via the operating system's sound settings. If we're re-initializing the device, we just terminate because we want the stopping of the
// device to be seamless to the client (we don't want them receiving the onStop event and thinking that the device has stopped when it
// hasn't!).
if (pDevice->coreaudio.isSwitchingDevice) {
return;
}
// Getting here means the device is not reinitializing which means it may have been unplugged. From what I can see, it looks like Core Audio
// will try switching to the new default device seamlessly. We need to somehow find a way to determine whether or not Core Audio will most
// likely be successful in switching to the new device.
//
// TODO: Try to predict if Core Audio will switch devices. If not, the onStop callback needs to be posted.
return;
}
// Getting here means we need to stop the device.
// There's been a report of a deadlock here when triggered by mal_device_uninit(). It looks like
// AudioUnitGetProprty (called below) and AudioComponentInstanceDispose (called in mal_device_uninit)
// can try waiting on the same lock. I'm going to try working around this by not calling any Core
// Audio APIs in the callback when the device has been stopped or uninitialized.
if (mal_device__get_state(pDevice) == MAL_STATE_UNINITIALIZED || mal_device__get_state(pDevice) == MAL_STATE_STOPPING) {
mal_stop_proc onStop = pDevice->onStop;
if (onStop) {
onStop(pDevice);
}
} else {
UInt32 isRunning;
UInt32 isRunningSize = sizeof(isRunning);
OSStatus status = ((mal_AudioUnitGetProperty_proc)pDevice->pContext->coreaudio.AudioUnitGetProperty)(audioUnit, kAudioOutputUnitProperty_IsRunning, scope, element, &isRunning, &isRunningSize);
if (status != noErr) {
return; // Don't really know what to do in this case... just ignore it, I suppose...
}
if (!isRunning) {
// The stop event is a bit annoying in Core Audio because it will be called when we automatically switch the default device. Some scenarios to consider:
//
// 1) When the device is unplugged, this will be called _before_ the default device change notification.
// 2) When the device is changed via the default device change notification, this will be called _after_ the switch.
//
// For case #1, we just check if there's a new default device available. If so, we just ignore the stop event. For case #2 we check a flag.
if (pDevice->isDefaultDevice && mal_device__get_state(pDevice) != MAL_STATE_STOPPING && mal_device__get_state(pDevice) != MAL_STATE_STOPPED) {
// It looks like the device is switching through an external event, such as the user unplugging the device or changing the default device
// via the operating system's sound settings. If we're re-initializing the device, we just terminate because we want the stopping of the
// device to be seamless to the client (we don't want them receiving the onStop event and thinking that the device has stopped when it
// hasn't!).
if (pDevice->coreaudio.isSwitchingDevice) {
return;
}
// Getting here means the device is not reinitializing which means it may have been unplugged. From what I can see, it looks like Core Audio
// will try switching to the new default device seamlessly. We need to somehow find a way to determine whether or not Core Audio will most
// likely be successful in switching to the new device.
//
// TODO: Try to predict if Core Audio will switch devices. If not, the onStop callback needs to be posted.
return;
}
// Getting here means we need to stop the device.
mal_stop_proc onStop = pDevice->onStop;
if (onStop) {
onStop(pDevice);
}
}
}
}
@ -15288,11 +15394,14 @@ mal_result mal_device_init_internal__coreaudio(mal_context* pContext, mal_device
if (result != MAL_SUCCESS) {
return result;
}
pData->bufferSizeInFramesOut = actualBufferSizeInFrames * pData->periodsOut;
#else
actualBufferSizeInFrames = 4096;
pData->bufferSizeInFramesOut = actualBufferSizeInFrames;
#endif
pData->bufferSizeInFramesOut = actualBufferSizeInFrames * pData->periodsOut;
// During testing I discovered that the buffer size can be too big. You'll get an error like this:
//
@ -15556,6 +15665,15 @@ mal_result mal_context_uninit__coreaudio(mal_context* pContext)
mal_result mal_context_init__coreaudio(mal_context* pContext)
{
mal_assert(pContext != NULL);
#if defined(MAL_APPLE_MOBILE)
@autoreleasepool {
AVAudioSession* pAudioSession = [AVAudioSession sharedInstance];
mal_assert(pAudioSession != NULL);
[pAudioSession setCategory: AVAudioSessionCategoryPlayAndRecord error:nil];
}
#endif
#if !defined(MAL_NO_RUNTIME_LINKING) && !defined(MAL_APPLE_MOBILE)
pContext->coreaudio.hCoreFoundation = mal_dlopen("CoreFoundation.framework/CoreFoundation");
@ -19725,7 +19843,7 @@ mal_result mal_device_init__sdl(mal_context* pContext, mal_device_type type, con
// SDL wants the buffer size to be a power of 2. The SDL_AudioSpec property for this is only a Uint16, so we need
// to explicitly clamp this because it will be easy to overflow.
mal_uint32 bufferSize = pConfig->bufferSizeInFrames;
mal_uint32 bufferSize = pDevice->bufferSizeInFrames;
if (bufferSize > 32768) {
bufferSize = 32768;
} else {
@ -19760,7 +19878,7 @@ mal_result mal_device_init__sdl(mal_context* pContext, mal_device_type type, con
pDevice->sdl.deviceID = ((MAL_PFN_SDL_OpenAudioDevice)pDevice->pContext->sdl.SDL_OpenAudioDevice)(pDeviceName, isCapture, &desiredSpec, &obtainedSpec, MAL_SDL_AUDIO_ALLOW_ANY_CHANGE);
if (pDevice->sdl.deviceID == 0) {
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "Failed to open SDL device.", MAL_FAILED_TO_OPEN_BACKEND_DEVICE);
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "Failed to open SDL2 device.", MAL_FAILED_TO_OPEN_BACKEND_DEVICE);
}
} else
#endif
@ -19778,10 +19896,12 @@ mal_result mal_device_init__sdl(mal_context* pContext, mal_device_type type, con
desiredSpec.format = MAL_AUDIO_S16;
}
n">pDevice->sdl.deviceID = ((MAL_PFN_SDL_OpenAudio)pDevice->pContext->sdl.SDL_OpenAudio)(&desiredSpec, &obtainedSpec);
if (pDevice->sdl.deviceID != 0) {
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "Failed to open SDL device.", MAL_FAILED_TO_OPEN_BACKEND_DEVICE);
kt">int deviceID = ((MAL_PFN_SDL_OpenAudio)pDevice->pContext->sdl.SDL_OpenAudio)(&desiredSpec, &obtainedSpec);
if (deviceID < 0) {
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "Failed to open SDL1 device.", MAL_FAILED_TO_OPEN_BACKEND_DEVICE);
}
pDevice->sdl.deviceID = (mal_uint32)deviceID;
}
pDevice->internalFormat = mal_format_from_sdl(obtainedSpec.format);
@ -20429,6 +20549,14 @@ mal_result mal_context_init(const mal_backend backends[], mal_uint32 backendCoun
mal_context_post_error(pContext, NULL, MAL_LOG_LEVEL_WARNING, "Failed to initialize mutex for device info retrieval. mal_context_get_device_info() is not thread safe.", MAL_FAILED_TO_CREATE_MUTEX);
}
#ifdef MAL_DEBUG_OUTPUT
printf("[mini_al] Endian: %s\n", mal_is_little_endian() ? "LE" : "BE");
printf("[mini_al] SSE2: %s\n", mal_has_sse2() ? "YES" : "NO");
printf("[mini_al] AVX2: %s\n", mal_has_avx2() ? "YES" : "NO");
printf("[mini_al] AVX512F: %s\n", mal_has_avx512f() ? "YES" : "NO");
printf("[mini_al] NEON: %s\n", mal_has_neon() ? "YES" : "NO");
#endif
pContext->backend = backend;
return result;
}
@ -20767,7 +20895,7 @@ mal_result mal_device_init(mal_context* pContext, mal_device_type type, mal_devi
#ifdef MAL_DEBUG_OUTPUT
printf("[WASAPI] %s (%s)\n", pDevice->name, (pDevice->type == mal_device_type_playback) ? "Playback" : "Capture");
printf("[%s] %s (%s)\n", mal_get_backend_name(pDevice->pContext->backend), pDevice->name, (pDevice->type == mal_device_type_playback) ? "Playback" : "Capture");
printf(" Format: %s -> %s\n", mal_get_format_name(pDevice->format), mal_get_format_name(pDevice->internalFormat));
printf(" Channels: %d -> %d\n", pDevice->channels, pDevice->internalChannels);
printf(" Sample Rate: %d -> %d\n", pDevice->sampleRate, pDevice->internalSampleRate);
@ -20949,7 +21077,7 @@ mal_result mal_device_stop(mal_device* pDevice)
// Asynchronous backends need to be handled differently.
if (mal_context_is_backend_asynchronous(pDevice->pContext)) {
pDevice->pContext->onDeviceStop(pDevice);
result = pDevice->pContext->onDeviceStop(pDevice);
} else {
// Synchronous backends.
@ -26138,6 +26266,92 @@ void mal_pcm_convert(void* pOut, mal_format formatOut, const void* pIn, mal_form
}
}
void mal_deinterleave_pcm_frames(mal_format format, mal_uint32 channels, mal_uint32 frameCount, const void* pInterleavedPCMFrames, void** ppDeinterleavedPCMFrames)
{
if (pInterleavedPCMFrames == NULL || ppDeinterleavedPCMFrames == NULL) {
return; // Invalid args.
}
// For efficiency we do this per format.
switch (format) {
case mal_format_s16:
{
const mal_int16* pSrcS16 = (const mal_int16*)pInterleavedPCMFrames;
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
mal_int16* pDstS16 = (mal_int16*)ppDeinterleavedPCMFrames[iChannel];
pDstS16[iPCMFrame] = pSrcS16[iPCMFrame*channels+iChannel];
}
}
} break;
case mal_format_f32:
{
const float* pSrcF32 = (const float*)pInterleavedPCMFrames;
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
float* pDstF32 = (float*)ppDeinterleavedPCMFrames[iChannel];
pDstF32[iPCMFrame] = pSrcF32[iPCMFrame*channels+iChannel];
}
}
} break;
default:
{
mal_uint32 sampleSizeInBytes = mal_get_bytes_per_sample(format);
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
void* pDst = mal_offset_ptr(ppDeinterleavedPCMFrames[iChannel], iPCMFrame*sampleSizeInBytes);
const void* pSrc = mal_offset_ptr(pInterleavedPCMFrames, (iPCMFrame*channels+iChannel)*sampleSizeInBytes);
memcpy(pDst, pSrc, sampleSizeInBytes);
}
}
} break;
}
}
void mal_interleave_pcm_frames(mal_format format, mal_uint32 channels, mal_uint32 frameCount, const void** ppDeinterleavedPCMFrames, void* pInterleavedPCMFrames)
{
switch (format)
{
case mal_format_s16:
{
mal_int16* pDstS16 = (mal_int16*)pInterleavedPCMFrames;
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
const mal_int16* pSrcS16 = (const mal_int16*)ppDeinterleavedPCMFrames[iChannel];
pDstS16[iPCMFrame*channels+iChannel] = pSrcS16[iPCMFrame];
}
}
} break;
case mal_format_f32:
{
float* pDstF32 = (float*)pInterleavedPCMFrames;
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
const float* pSrcF32 = (const float*)ppDeinterleavedPCMFrames[iChannel];
pDstF32[iPCMFrame*channels+iChannel] = pSrcF32[iPCMFrame];
}
}
} break;
default:
{
mal_uint32 sampleSizeInBytes = mal_get_bytes_per_sample(format);
for (mal_uint32 iPCMFrame = 0; iPCMFrame < frameCount; ++iPCMFrame) {
for (mal_uint32 iChannel = 0; iChannel < channels; ++iChannel) {
void* pDst = mal_offset_ptr(pInterleavedPCMFrames, (iPCMFrame*channels+iChannel)*sampleSizeInBytes);
const void* pSrc = mal_offset_ptr(ppDeinterleavedPCMFrames[iChannel], iPCMFrame*sampleSizeInBytes);
memcpy(pDst, pSrc, sampleSizeInBytes);
}
}
} break;
}
}
typedef struct
@ -28296,6 +28510,13 @@ mal_uint64 mal_sine_wave_read_ex(mal_sine_wave* pSineWave, mal_uint64 frameCount
// REVISION HISTORY
// ================
//
// v0.8.10 - 2018-10-21
// - Core Audio: Fix a hang when uninitializing a device.
// - Fix a bug where an incorrect value is returned from mal_device_stop().
//
// v0.8.9 - 2018-09-28
// - Fix a bug with the SDL backend where device initialization fails.
//
// v0.8.8 - 2018-09-14
// - Fix Linux build with the ALSA backend.
// - Minor documentation fix.

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