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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qpulsehelpers_p.h"
QT_BEGIN_NAMESPACE
Q_LOGGING_CATEGORY(qLcPulseAudioOut, "qt.multimedia.pulseaudio.output")
Q_LOGGING_CATEGORY(qLcPulseAudioIn, "qt.multimedia.pulseaudio.input")
Q_LOGGING_CATEGORY(qLcPulseAudioEngine, "qt.multimedia.pulseaudio.engine")
namespace QPulseAudioInternal
{
pa_sample_spec audioFormatToSampleSpec(const QAudioFormat &format)
{
pa_sample_spec spec;
spec.rate = format.sampleRate();
spec.channels = format.channelCount();
spec.format = PA_SAMPLE_INVALID;
const bool isBigEndian = QSysInfo::ByteOrder == QSysInfo::BigEndian;
if (format.sampleFormat() == QAudioFormat::UInt8) {
spec.format = PA_SAMPLE_U8;
} else if (format.sampleFormat() == QAudioFormat::Int16) {
spec.format = isBigEndian ? PA_SAMPLE_S16BE : PA_SAMPLE_S16LE;
} else if (format.sampleFormat() == QAudioFormat::Int32) {
spec.format = isBigEndian ? PA_SAMPLE_S32BE : PA_SAMPLE_S32LE;
} else if (format.sampleFormat() == QAudioFormat::Float) {
spec.format = isBigEndian ? PA_SAMPLE_FLOAT32BE : PA_SAMPLE_FLOAT32LE;
}
return spec;
}
pa_channel_map channelMapForAudioFormat(const QAudioFormat &format)
{
pa_channel_map map;
map.channels = 0;
auto config = format.channelConfig();
if (config == QAudioFormat::ChannelConfigUnknown)
config = QAudioFormat::defaultChannelConfigForChannelCount(format.channelCount());
if (config == QAudioFormat::ChannelConfigMono) {
map.channels = 1;
map.map[0] = PA_CHANNEL_POSITION_MONO;
} else {
if (config & QAudioFormat::channelConfig(QAudioFormat::FrontLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_FRONT_LEFT;
if (config & QAudioFormat::channelConfig(QAudioFormat::FrontRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_FRONT_RIGHT;
if (config & QAudioFormat::channelConfig(QAudioFormat::FrontCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_FRONT_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::LFE))
map.map[map.channels++] = PA_CHANNEL_POSITION_LFE;
if (config & QAudioFormat::channelConfig(QAudioFormat::BackLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_REAR_LEFT;
if (config & QAudioFormat::channelConfig(QAudioFormat::BackRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_REAR_RIGHT;
if (config & QAudioFormat::channelConfig(QAudioFormat::FrontLeftOfCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::FrontRightOfCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::BackCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_REAR_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::LFE2))
map.map[map.channels++] = PA_CHANNEL_POSITION_LFE;
if (config & QAudioFormat::channelConfig(QAudioFormat::SideLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_SIDE_LEFT;
if (config & QAudioFormat::channelConfig(QAudioFormat::SideRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_SIDE_RIGHT;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopFrontLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_FRONT_LEFT;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopFrontRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_FRONT_RIGHT;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopFrontCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_FRONT_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopBackLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_REAR_LEFT;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopBackRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_REAR_RIGHT;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopSideLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_AUX0;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopSideRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_AUX1;
if (config & QAudioFormat::channelConfig(QAudioFormat::TopBackCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_TOP_REAR_CENTER;
if (config & QAudioFormat::channelConfig(QAudioFormat::BottomFrontCenter))
map.map[map.channels++] = PA_CHANNEL_POSITION_AUX2;
if (config & QAudioFormat::channelConfig(QAudioFormat::BottomFrontLeft))
map.map[map.channels++] = PA_CHANNEL_POSITION_AUX3;
if (config & QAudioFormat::channelConfig(QAudioFormat::BottomFrontRight))
map.map[map.channels++] = PA_CHANNEL_POSITION_AUX4;
}
Q_ASSERT(qPopulationCount(config) == map.channels);
return map;
}
QAudioFormat::ChannelConfig channelConfigFromMap(const pa_channel_map &map)
{
quint32 config = 0;
for (int i = 0; i < map.channels; ++i) {
switch (map.map[i]) {
case PA_CHANNEL_POSITION_MONO:
case PA_CHANNEL_POSITION_FRONT_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::FrontCenter);
break;
case PA_CHANNEL_POSITION_FRONT_LEFT:
config |= QAudioFormat::channelConfig(QAudioFormat::FrontLeft);
break;
case PA_CHANNEL_POSITION_FRONT_RIGHT:
config |= QAudioFormat::channelConfig(QAudioFormat::FrontRight);
break;
case PA_CHANNEL_POSITION_REAR_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::BackCenter);
break;
case PA_CHANNEL_POSITION_REAR_LEFT:
config |= QAudioFormat::channelConfig(QAudioFormat::BackLeft);
break;
case PA_CHANNEL_POSITION_REAR_RIGHT:
config |= QAudioFormat::channelConfig(QAudioFormat::BackRight);
break;
case PA_CHANNEL_POSITION_LFE:
config |= QAudioFormat::channelConfig(QAudioFormat::LFE);
break;
case PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::FrontLeftOfCenter);
break;
case PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::FrontRightOfCenter);
break;
case PA_CHANNEL_POSITION_SIDE_LEFT:
config |= QAudioFormat::channelConfig(QAudioFormat::SideLeft);
break;
case PA_CHANNEL_POSITION_SIDE_RIGHT:
config |= QAudioFormat::channelConfig(QAudioFormat::SideRight);
break;
case PA_CHANNEL_POSITION_TOP_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::TopCenter);
break;
case PA_CHANNEL_POSITION_TOP_FRONT_LEFT:
config |= QAudioFormat::channelConfig(QAudioFormat::TopFrontLeft);
break;
case PA_CHANNEL_POSITION_TOP_FRONT_RIGHT:
config |= QAudioFormat::channelConfig(QAudioFormat::TopFrontRight);
break;
case PA_CHANNEL_POSITION_TOP_FRONT_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::TopFrontCenter);
break;
case PA_CHANNEL_POSITION_TOP_REAR_LEFT:
config |= QAudioFormat::channelConfig(QAudioFormat::TopBackLeft);
break;
case PA_CHANNEL_POSITION_TOP_REAR_RIGHT:
config |= QAudioFormat::channelConfig(QAudioFormat::TopBackRight);
break;
case PA_CHANNEL_POSITION_TOP_REAR_CENTER:
config |= QAudioFormat::channelConfig(QAudioFormat::TopBackCenter);
break;
default:
break;
}
}
return QAudioFormat::ChannelConfig(config);
}
QAudioFormat sampleSpecToAudioFormat(const pa_sample_spec &spec)
{
QAudioFormat format;
format.setSampleRate(spec.rate);
format.setChannelCount(spec.channels);
QAudioFormat::SampleFormat sampleFormat;
switch (spec.format) {
case PA_SAMPLE_U8:
sampleFormat = QAudioFormat::UInt8;
break;
case PA_SAMPLE_S16LE:
case PA_SAMPLE_S16BE:
sampleFormat = QAudioFormat::Int16;
break;
case PA_SAMPLE_FLOAT32LE:
case PA_SAMPLE_FLOAT32BE:
sampleFormat = QAudioFormat::Float;
break;
case PA_SAMPLE_S32LE:
case PA_SAMPLE_S32BE:
sampleFormat = QAudioFormat::Int32;
break;
default:
return {};
}
format.setSampleFormat(sampleFormat);
return format;
}
QUtf8StringView currentError(const pa_context *context)
{
return pa_strerror(pa_context_errno(context));
}
QUtf8StringView currentError(const pa_stream *stream)
{
return currentError(pa_stream_get_context(stream));
}
} // namespace QPulseAudioInternal
static QLatin1StringView stateToQStringView(pa_stream_state_t state)
{
using namespace Qt::StringLiterals;
switch (state)
{
case PA_STREAM_UNCONNECTED: return "Unconnected"_L1;
case PA_STREAM_CREATING: return "Creating"_L1;
case PA_STREAM_READY: return "Ready"_L1;
case PA_STREAM_FAILED: return "Failed"_L1;
case PA_STREAM_TERMINATED: return "Terminated"_L1;
default: Q_UNREACHABLE_RETURN("Unknown stream state"_L1);
}
}
static QLatin1StringView sampleFormatToQStringView(pa_sample_format format)
{
using namespace Qt::StringLiterals;
switch (format)
{
case PA_SAMPLE_U8: return "Unsigned 8 Bit PCM."_L1;
case PA_SAMPLE_ALAW: return "8 Bit a-Law "_L1;
case PA_SAMPLE_ULAW: return "8 Bit mu-Law"_L1;
case PA_SAMPLE_S16LE: return "Signed 16 Bit PCM, little endian (PC)."_L1;
case PA_SAMPLE_S16BE: return "Signed 16 Bit PCM, big endian."_L1;
case PA_SAMPLE_FLOAT32LE: return "32 Bit IEEE floating point, little endian (PC), range -1.0 to 1.0"_L1;
case PA_SAMPLE_FLOAT32BE: return "32 Bit IEEE floating point, big endian, range -1.0 to 1.0"_L1;
case PA_SAMPLE_S32LE: return "Signed 32 Bit PCM, little endian (PC)."_L1;
case PA_SAMPLE_S32BE: return "Signed 32 Bit PCM, big endian."_L1;
case PA_SAMPLE_S24LE: return "Signed 24 Bit PCM packed, little endian (PC)."_L1;
case PA_SAMPLE_S24BE: return "Signed 24 Bit PCM packed, big endian."_L1;
case PA_SAMPLE_S24_32LE: return "Signed 24 Bit PCM in LSB of 32 Bit words, little endian (PC)."_L1;
case PA_SAMPLE_S24_32BE: return "Signed 24 Bit PCM in LSB of 32 Bit words, big endian."_L1;
case PA_SAMPLE_MAX: return "Upper limit of valid sample types."_L1;
case PA_SAMPLE_INVALID: return "Invalid sample format"_L1;
default: Q_UNREACHABLE_RETURN("Unknown sample format"_L1);
}
}
static QLatin1StringView stateToQStringView(pa_context_state_t state)
{
using namespace Qt::StringLiterals;
switch (state)
{
case PA_CONTEXT_UNCONNECTED: return "Unconnected"_L1;
case PA_CONTEXT_CONNECTING: return "Connecting"_L1;
case PA_CONTEXT_AUTHORIZING: return "Authorizing"_L1;
case PA_CONTEXT_SETTING_NAME: return "Setting Name"_L1;
case PA_CONTEXT_READY: return "Ready"_L1;
case PA_CONTEXT_FAILED: return "Failed"_L1;
case PA_CONTEXT_TERMINATED: return "Terminated"_L1;
default: Q_UNREACHABLE_RETURN("Unknown context state"_L1);
}
}
QDebug operator<<(QDebug dbg, pa_stream_state_t state)
{
return dbg << stateToQStringView(state);
}
QDebug operator<<(QDebug dbg, pa_sample_format format)
{
return dbg << sampleFormatToQStringView(format);
}
QDebug operator<<(QDebug dbg, pa_context_state_t state)
{
return dbg << stateToQStringView(state);
}
QT_END_NAMESPACE
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