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// Copyright (C) 2016 Research In Motion
// Copyright (C) 2021 The Qt Company
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qqnxaudiodevice_p.h"
#include "qqnxaudioutils_p.h"
#include <array>
#include <sys/asoundlib.h>
using namespace QnxAudioUtils;
QT_BEGIN_NAMESPACE
namespace {
QAudioDevicePrivate::AudioDeviceFormat
createQnxAudioDeviceFormatFromDeviceName(const QByteArray &deviceName, QAudioDevice::Mode mode)
{
QAudioDevicePrivate::AudioDeviceFormat format;
format.preferredFormat.setChannelCount(mode == QAudioDevice::Input ? 1 : 2);
format.minimumChannelCount = 1;
format.maximumChannelCount = 2;
const std::optional<snd_pcm_channel_info_t> info = pcmChannelInfo(deviceName, mode);
if (!info)
return format;
format.minimumSampleRate = info->min_rate;
format.maximumSampleRate = info->max_rate;
constexpr std::array sampleRates { 48000, 44100, 22050, 16000, 11025, 8000 };
for (int rate : sampleRates) {
if (rate <= format.maximumSampleRate && rate >= format.minimumSampleRate) {
format.preferredFormat.setSampleRate(rate);
break;
}
}
if (info->formats & SND_PCM_FMT_U8) {
format.supportedSampleFormats << QAudioFormat::UInt8;
format.preferredFormat.setSampleFormat(QAudioFormat::UInt8);
}
if (info->formats & SND_PCM_FMT_S16) {
format.supportedSampleFormats << QAudioFormat::Int16;
format.preferredFormat.setSampleFormat(QAudioFormat::Int16);
}
if (info->formats & SND_PCM_FMT_S32)
format.supportedSampleFormats << QAudioFormat::Int32;
if (info->formats & SND_PCM_FMT_FLOAT)
format.supportedSampleFormats << QAudioFormat::Float;
return format;
}
} // namespace
QnxAudioDeviceInfo::QnxAudioDeviceInfo(const QByteArray &deviceName, QAudioDevice::Mode mode)
: QAudioDevicePrivate(deviceName, mode, QString::fromUtf8(deviceName),
deviceName.contains("Preferred"),
createQnxAudioDeviceFormatFromDeviceName(deviceName, mode))
{
}
QnxAudioDeviceInfo::~QnxAudioDeviceInfo()
{
}
bool QnxAudioDeviceInfo::isFormatSupported(const QAudioFormat &format) const
{
const HandleUniquePtr handle = openPcmDevice(id, mode);
if (!handle)
return false;
const std::optional<snd_pcm_channel_info_t> info = pcmChannelInfo(handle.get(), mode);
if (!info)
return false;
snd_pcm_channel_params_t params = formatToChannelParams(format, mode, info->max_fragment_size);
const int errorCode = snd_pcm_plugin_params(handle.get(), ¶ms);
return errorCode == 0;
}
QT_END_NAMESPACE