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Potential fixes for Core Audio.

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This commit is contained in:
David Reid
2018-11-17 13:08:03 +10:00
parent 496ccdfcee
commit ba12e1d7bc
1 changed files with 193 additions and 30 deletions
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mini_al.h
+193 -30
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@@ -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);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -14900,27 +14905,62 @@ 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
// 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
// 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;
}
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);
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 +14981,13 @@ 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 +15000,46 @@ 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.
// TODO: Call mal_device__send_frames_to_client() with silence.
#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;
}
}
}
@@ -26163,6 +26240,92 @@ 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