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[Audio Output] Correctly configure WAVE layouts 

Correctly configure AVFoundation with the channel layouts supported by
WAVEFORMATEXTENSIBLE speaker position flags, which includes varied
formats supported by FFmpeg and Core Audio inputs.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
swiftingly
Christopher Snowhill 2022-06-24 23:12:14 -07:00
parent b55955ef1c
commit 86d8f04966
1 changed files with 13 additions and 9 deletions
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22
Audio/Output/OutputAVFoundation.m
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@ -588,37 +588,38 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
- (void)updateStreamFormat {
/* Set the channel layout for the audio queue */
AudioChannelLayoutTag tag = 0;
AudioChannelLayout layout = { 0 };
switch(streamFormat.mChannelsPerFrame) {
case 1:
switch(streamChannelConfig) {
case AudioConfigMono:
tag = kAudioChannelLayoutTag_Mono;
deviceChannelConfig = AudioConfigMono;
break;
case 2:
case AudioConfigStereo:
tag = kAudioChannelLayoutTag_Stereo;
deviceChannelConfig = AudioConfigStereo;
break;
case 3:
case AudioConfig3Point0:
tag = kAudioChannelLayoutTag_WAVE_3_0;
deviceChannelConfig = AudioConfig3Point0;
break;
case 4:
case AudioConfig4Point0:
tag = kAudioChannelLayoutTag_WAVE_4_0_A;
deviceChannelConfig = AudioConfig4Point0;
break;
case 5:
case AudioConfig5Point0:
tag = kAudioChannelLayoutTag_WAVE_5_0_A;
deviceChannelConfig = AudioConfig5Point0;
break;
case 6:
case AudioConfig5Point1:
tag = kAudioChannelLayoutTag_WAVE_5_1_A;
deviceChannelConfig = AudioConfig5Point1;
break;
case 7:
case AudioConfig6Point1:
tag = kAudioChannelLayoutTag_WAVE_6_1;
deviceChannelConfig = AudioConfig6Point1;
break;
case 8:
case AudioConfig7Point1:
tag = kAudioChannelLayoutTag_WAVE_7_1;
deviceChannelConfig = AudioConfig7Point1;
break;
@ -632,6 +633,9 @@ current_device_listener(AudioObjectID inObjectID, UInt32 inNumberAddresses, cons
if(tag) {
layout.mChannelLayoutTag = tag;
} else {
layout.mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelBitmap;
layout.mChannelBitmap = streamChannelConfig;
}
if(CMAudioFormatDescriptionCreate(kCFAllocatorDefault, &streamFormat, sizeof(layout), &layout, 0, NULL, NULL, &audioFormatDescription) != noErr) {