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Add support for more back-end sample rates

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This commit is contained in:
Ken Cooke 2016-08-30 14:37:33 -07:00
parent 9187b4aa7d
commit cb5bded7c1
1 changed files with 13 additions and 11 deletions
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24
libraries/audio-client/src/AudioClient.cpp
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@ -365,24 +365,26 @@ bool adjustedFormatForAudioDevice(const QAudioDeviceInfo& audioDevice,
const QAudioFormat& desiredAudioFormat,
QAudioFormat& adjustedAudioFormat) {
// FIXME: directly using 24khz has a bug somewhere that causes channels to be swapped.
// Continue using our internal resampler, for now.
qCDebug(audioclient) << "The desired format for audio I/O is" << desiredAudioFormat;
const int FORTY_FOUR = 44100;
const int FORTY_EIGHT = 48000;
adjustedAudioFormat = desiredAudioFormat;
#ifdef Q_OS_ANDROID
adjustedAudioFormat.setSampleRate(FORTY_FOUR);
adjustedAudioFormat.setSampleRate(44100);
#else
if (audioDevice.supportedSampleRates().contains(FORTY_EIGHT)) {
// use 48000, which is a simple downsample, upsample
adjustedAudioFormat.setSampleRate(FORTY_EIGHT);
} else if (audioDevice.supportedSampleRates().contains(FORTY_FOUR)) {
// use 44100, resample
adjustedAudioFormat.setSampleRate(FORTY_FOUR);
//
// Attempt to set the device sample rate in decreasing order of preference.
// On Windows, using WASAPI shared mode, only a match with the hardware sample rate will succeed.
//
if (audioDevice.supportedSampleRates().contains(48000)) {
adjustedAudioFormat.setSampleRate(48000);
} else if (audioDevice.supportedSampleRates().contains(44100)) {
adjustedAudioFormat.setSampleRate(44100);
} else if (audioDevice.supportedSampleRates().contains(32000)) {
adjustedAudioFormat.setSampleRate(32000);
} else if (audioDevice.supportedSampleRates().contains(24000)) {
adjustedAudioFormat.setSampleRate(24000);
}
#endif