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Core Audio: Potential fix for incorrect deinterleaving.

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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
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miniaudio.h
+16 -1
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@@ -19392,8 +19392,15 @@ OSStatus ma_on_output__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
}
} else {
/* This is the deinterleaved case. We need to update each buffer in groups of internalChannels. This assumes each buffer is the same size. */
/*
For safety we'll check that the internal channels is a multiple of the buffer count. If it's not it means something
very strange has happened and we're not going to support it.
*/
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;
@@ -19413,7 +19420,7 @@ OSStatus ma_on_output__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
}
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));
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);
@@ -19422,6 +19429,7 @@ OSStatus ma_on_output__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
}
}
}
}
(void)pActionFlags;
(void)pTimeStamp;
@@ -19505,6 +19513,12 @@ OSStatus ma_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pAc
}
} 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. */
/*
For safety we'll check that the internal channels is a multiple of the buffer count. If it's not it means something
very strange has happened and we're not going to support it.
*/
if ((pRenderedBufferList->mNumberBuffers % pDevice->capture.internalChannels) == 0) {
ma_uint8 tempBuffer[4096];
UInt32 iBuffer;
for (iBuffer = 0; iBuffer < pRenderedBufferList->mNumberBuffers; iBuffer += pDevice->capture.internalChannels) {
@@ -19533,6 +19547,7 @@ OSStatus ma_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pAc
}
}
}
}
(void)pActionFlags;
(void)pTimeStamp;