mirror/miniaudio
1
0
Fork 0
mirror of https://github.com/mackron/miniaudio.git synced 2026-04-22 16:24:04 +02:00
Code Issues Packages Projects Releases Wiki Activity

Core Audio: Potential fix for incorrect deinterleaving.

Browse Source
This commit is contained in:
David Reid
2019-12-06 17:17:56 +10:00
parent 911bc61df1
commit fe90e11a79
1 changed files with 63 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files
miniaudio.h
+63 -48
View File
@@ -19392,33 +19392,41 @@ OSStatus ma_on_output__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
} }
} else { } else {
/* This is the deinterleaved case. We need to update each buffer in groups of internalChannels. This assumes each buffer is the same size. */ /* This is the deinterleaved case. We need to update each buffer in groups of internalChannels. This assumes each buffer is the same size. */
ma_uint8 tempBuffer[4096];
UInt32 iBuffer; /*
for (iBuffer = 0; iBuffer < pBufferList->mNumberBuffers; iBuffer += pDevice->playback.internalChannels) { For safety we'll check that the internal channels is a multiple of the buffer count. If it's not it means something
ma_uint32 frameCountPerBuffer = pBufferList->mBuffers[iBuffer].mDataByteSize / ma_get_bytes_per_sample(pDevice->playback.internalFormat); very strange has happened and we're not going to support it.
ma_uint32 framesRemaining = frameCountPerBuffer; */
if ((pBufferList->mNumberBuffers % pDevice->playback.internalChannels) == 0) {
ma_uint8 tempBuffer[4096];
UInt32 iBuffer;
for (iBuffer = 0; iBuffer < pBufferList->mNumberBuffers; iBuffer += pDevice->playback.internalChannels) {
ma_uint32 frameCountPerBuffer = pBufferList->mBuffers[iBuffer].mDataByteSize / ma_get_bytes_per_sample(pDevice->playback.internalFormat);
ma_uint32 framesRemaining = frameCountPerBuffer;
while (framesRemaining > 0) { while (framesRemaining > 0) {
void* ppDeinterleavedBuffers[MA_MAX_CHANNELS]; void* ppDeinterleavedBuffers[MA_MAX_CHANNELS];
ma_uint32 iChannel; ma_uint32 iChannel;
ma_uint32 framesToRead = sizeof(tempBuffer) / ma_get_bytes_per_frame(pDevice->playback.internalFormat, pDevice->playback.internalChannels); ma_uint32 framesToRead = sizeof(tempBuffer) / ma_get_bytes_per_frame(pDevice->playback.internalFormat, pDevice->playback.internalChannels);
if (framesToRead > framesRemaining) { if (framesToRead > framesRemaining) {
framesToRead = framesRemaining; framesToRead = framesRemaining;
}
if (pDevice->type == ma_device_type_duplex) {
ma_device__handle_duplex_callback_playback(pDevice, framesToRead, tempBuffer, &pDevice->coreaudio.duplexRB);
} else {
ma_device__read_frames_from_client(pDevice, framesToRead, tempBuffer);
}
for (iChannel = 0; iChannel < pDevice->playback.internalChannels; ++iChannel) {
ppDeinterleavedBuffers[iChannel] = (void*)ma_offset_ptr(pBufferList->mBuffers[iBuffer+iChannel].mData, (frameCountPerBuffer - framesRemaining) * ma_get_bytes_per_sample(pDevice->playback.internalFormat));
}
ma_deinterleave_pcm_frames(pDevice->playback.internalFormat, pDevice->playback.internalChannels, framesToRead, tempBuffer, ppDeinterleavedBuffers);
framesRemaining -= framesToRead;
} }
if (pDevice->type == ma_device_type_duplex) {
ma_device__handle_duplex_callback_playback(pDevice, framesToRead, tempBuffer, &pDevice->coreaudio.duplexRB);
} else {
ma_device__read_frames_from_client(pDevice, framesToRead, tempBuffer);
}
for (iChannel = 0; iChannel < pDevice->playback.internalChannels; ++iChannel) {
ppDeinterleavedBuffers[iChannel] = (void*)ma_offset_ptr(pBufferList->mBuffers[iBuffer].mData, (frameCountPerBuffer - framesRemaining) * ma_get_bytes_per_sample(pDevice->playback.internalFormat));
}
ma_deinterleave_pcm_frames(pDevice->playback.internalFormat, pDevice->playback.internalChannels, framesToRead, tempBuffer, ppDeinterleavedBuffers);
framesRemaining -= framesToRead;
} }
} }
} }
@@ -19505,31 +19513,38 @@ OSStatus ma_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pAc
} }
} else { } 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. */ /* 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. */
ma_uint8 tempBuffer[4096];
UInt32 iBuffer; /*
for (iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; iBuffer += pDevice->capture.internalChannels) { For safety we'll check that the internal channels is a multiple of the buffer count. If it's not it means something
ma_uint32 framesRemaining = frameCount; very strange has happened and we're not going to support it.
while (framesRemaining > 0) { */
void* ppDeinterleavedBuffers[MA_MAX_CHANNELS]; if ((pRenderedBufferList->mNumberBuffers % pDevice->capture.internalChannels) == 0) {
ma_uint32 iChannel; ma_uint8 tempBuffer[4096];
ma_uint32 framesToSend = sizeof(tempBuffer) / ma_get_bytes_per_sample(pDevice->capture.internalFormat); UInt32 iBuffer;
if (framesToSend > framesRemaining) { for (iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; iBuffer += pDevice->capture.internalChannels) {
framesToSend = framesRemaining; ma_uint32 framesRemaining = frameCount;
} while (framesRemaining > 0) {
void* ppDeinterleavedBuffers[MA_MAX_CHANNELS];
for (iChannel = 0; iChannel < pDevice->capture.internalChannels; ++iChannel) { ma_uint32 iChannel;
ppDeinterleavedBuffers[iChannel] = (void*)ma_offset_ptr(pRenderedBufferList->mBuffers[iBuffer].mData, (frameCount - framesRemaining) * ma_get_bytes_per_sample(pDevice->capture.internalFormat)); ma_uint32 framesToSend = sizeof(tempBuffer) / ma_get_bytes_per_sample(pDevice->capture.internalFormat);
} if (framesToSend > framesRemaining) {
framesToSend = framesRemaining;
ma_interleave_pcm_frames(pDevice->capture.internalFormat, pDevice->capture.internalChannels, framesToSend, (const void**)ppDeinterleavedBuffers, tempBuffer); }
for (iChannel = 0; iChannel < pDevice->capture.internalChannels; ++iChannel) {
ppDeinterleavedBuffers[iChannel] = (void*)ma_offset_ptr(pRenderedBufferList->mBuffers[iBuffer].mData, (frameCount - framesRemaining) * ma_get_bytes_per_sample(pDevice->capture.internalFormat));
}
ma_interleave_pcm_frames(pDevice->capture.internalFormat, pDevice->capture.internalChannels, framesToSend, (const void**)ppDeinterleavedBuffers, tempBuffer);
if (pDevice->type == ma_device_type_duplex) { if (pDevice->type == ma_device_type_duplex) {
ma_device__handle_duplex_callback_capture(pDevice, framesToSend, tempBuffer, &pDevice->coreaudio.duplexRB); ma_device__handle_duplex_callback_capture(pDevice, framesToSend, tempBuffer, &pDevice->coreaudio.duplexRB);
} else { } else {
ma_device__send_frames_to_client(pDevice, framesToSend, tempBuffer); ma_device__send_frames_to_client(pDevice, framesToSend, tempBuffer);
} }
framesRemaining -= framesToSend; framesRemaining -= framesToSend;
}
} }
} }
} }