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[Equalizer] Fix support for arbitrary channels 

The deinterleaved format was being specified incorrectly. Now it asks
for the correct format, which is deinterleaved, and the bytes per frame
or packet sizes are relative to a single channel's buffer, not all
buffers. Oops, that could have been more clear in the documentation.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
xcode15
Christopher Snowhill 2022-07-03 22:39:43 -07:00
parent 9e66838b9b
commit aeee143de2
1 changed files with 18 additions and 3 deletions
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21
Audio/Output/OutputAVFoundation.m
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@ -648,9 +648,18 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
return;
}
if(eqInitialized) {
AudioUnitUninitialize(_eq);
eqInitialized = NO;
}
AudioStreamBasicDescription asbd = streamFormat;
asbd.mFormatFlags &= ~kAudioFormatFlagIsPacked;
// Of course, non-interleaved has only one sample per frame/packet, per buffer
asbd.mFormatFlags |= kAudioFormatFlagIsNonInterleaved;
asbd.mBytesPerFrame = sizeof(float);
asbd.mBytesPerPacket = sizeof(float);
asbd.mFramesPerPacket = 1;
UInt32 maximumFrames = 1024;
AudioUnitSetProperty(_eq, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, &maximumFrames, sizeof(maximumFrames));
@ -665,6 +674,12 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
AudioUnitReset(_eq, kAudioUnitScope_Global, 0);
if(AudioUnitInitialize(_eq) != noErr) {
eqEnabled = NO;
return;
}
eqInitialized = YES;
eqEnabled = [[[[NSUserDefaultsController sharedUserDefaultsController] defaults] objectForKey:@"GraphicEQenable"] boolValue];
}
@ -733,7 +748,7 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
}
if(samplesRendered) {
if(eqEnabled) {
if(eqEnabled && eqInitialized) {
const int channels = streamFormat.mChannelsPerFrame;
if(channels > 0) {
const size_t channelsminusone = channels - 1;
@ -743,7 +758,7 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
ioData->mNumberBuffers = channels;
for(size_t i = 0; i < channels; ++i) {
ioData->mBuffers[i].mData = &eqBuffer[1024 * i];
ioData->mBuffers[i].mDataByteSize = 1024 * sizeof(float);
ioData->mBuffers[i].mDataByteSize = samplesRendered * sizeof(float);
ioData->mBuffers[i].mNumberChannels = 1;
}