diff options
Diffstat (limited to 'src/plugins/alsa/qalsaaudiodeviceinfo.cpp')
| -rw-r--r-- | src/plugins/alsa/qalsaaudiodeviceinfo.cpp | 430 |
1 files changed, 0 insertions, 430 deletions
diff --git a/src/plugins/alsa/qalsaaudiodeviceinfo.cpp b/src/plugins/alsa/qalsaaudiodeviceinfo.cpp deleted file mode 100644 index 5cfcb27e0..000000000 --- a/src/plugins/alsa/qalsaaudiodeviceinfo.cpp +++ /dev/null @@ -1,430 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of other Qt classes. This header file may change from version to -// version without notice, or even be removed. -// -// INTERNAL USE ONLY: Do NOT use for any other purpose. -// - -#include "qalsaaudiodeviceinfo.h" - -#include <alsa/version.h> - -QT_BEGIN_NAMESPACE - -QAlsaAudioDeviceInfo::QAlsaAudioDeviceInfo(const QByteArray &dev, QAudio::Mode mode) -{ - handle = 0; - - device = QLatin1String(dev); - this->mode = mode; - - checkSurround(); -} - -QAlsaAudioDeviceInfo::~QAlsaAudioDeviceInfo() -{ - close(); -} - -bool QAlsaAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const -{ - return testSettings(format); -} - -QAudioFormat QAlsaAudioDeviceInfo::preferredFormat() const -{ - QAudioFormat nearest; - if(mode == QAudio::AudioOutput) { - nearest.setSampleRate(44100); - nearest.setChannelCount(2); - nearest.setByteOrder(QAudioFormat::LittleEndian); - nearest.setSampleType(QAudioFormat::SignedInt); - nearest.setSampleSize(16); - nearest.setCodec(QLatin1String("audio/pcm")); - } else { - nearest.setSampleRate(8000); - nearest.setChannelCount(1); - nearest.setSampleType(QAudioFormat::UnSignedInt); - nearest.setSampleSize(8); - nearest.setCodec(QLatin1String("audio/pcm")); - if(!testSettings(nearest)) { - nearest.setChannelCount(2); - nearest.setSampleSize(16); - nearest.setSampleType(QAudioFormat::SignedInt); - } - } - return nearest; -} - -QString QAlsaAudioDeviceInfo::deviceName() const -{ - return device; -} - -QStringList QAlsaAudioDeviceInfo::supportedCodecs() -{ - updateLists(); - return codecz; -} - -QList<int> QAlsaAudioDeviceInfo::supportedSampleRates() -{ - updateLists(); - return sampleRatez; -} - -QList<int> QAlsaAudioDeviceInfo::supportedChannelCounts() -{ - updateLists(); - return channelz; -} - -QList<int> QAlsaAudioDeviceInfo::supportedSampleSizes() -{ - updateLists(); - return sizez; -} - -QList<QAudioFormat::Endian> QAlsaAudioDeviceInfo::supportedByteOrders() -{ - updateLists(); - return byteOrderz; -} - -QList<QAudioFormat::SampleType> QAlsaAudioDeviceInfo::supportedSampleTypes() -{ - updateLists(); - return typez; -} - -QByteArray QAlsaAudioDeviceInfo::defaultDevice(QAudio::Mode mode) -{ - const auto &devices = availableDevices(mode); - if (devices.size() == 0) - return QByteArray(); - - return devices.first(); -} - -bool QAlsaAudioDeviceInfo::open() -{ - int err = 0; - QString dev; - - if (!availableDevices(mode).contains(device.toLocal8Bit())) - return false; - -#if SND_LIB_VERSION < 0x1000e // 1.0.14 - if (device.compare(QLatin1String("default")) != 0) - dev = deviceFromCardName(device); - else -#endif - dev = device; - - if(mode == QAudio::AudioOutput) { - err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0); - } else { - err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0); - } - if(err < 0) { - handle = 0; - return false; - } - return true; -} - -void QAlsaAudioDeviceInfo::close() -{ - if(handle) - snd_pcm_close(handle); - handle = 0; -} - -bool QAlsaAudioDeviceInfo::testSettings(const QAudioFormat& format) const -{ - // Set nearest to closest settings that do work. - // See if what is in settings will work (return value). - int err = -1; - snd_pcm_t* pcmHandle; - snd_pcm_hw_params_t *params; - QString dev; - -#if SND_LIB_VERSION < 0x1000e // 1.0.14 - if (device.compare(QLatin1String("default")) != 0) - dev = deviceFromCardName(device); - else -#endif - dev = device; - - snd_pcm_stream_t stream = mode == QAudio::AudioOutput - ? SND_PCM_STREAM_PLAYBACK : SND_PCM_STREAM_CAPTURE; - - if (snd_pcm_open(&pcmHandle, dev.toLocal8Bit().constData(), stream, 0) < 0) - return false; - - snd_pcm_nonblock(pcmHandle, 0); - snd_pcm_hw_params_alloca(¶ms); - snd_pcm_hw_params_any(pcmHandle, params); - - // set the values! - snd_pcm_hw_params_set_channels(pcmHandle, params, format.channelCount()); - snd_pcm_hw_params_set_rate(pcmHandle, params, format.sampleRate(), 0); - - snd_pcm_format_t pcmFormat = SND_PCM_FORMAT_UNKNOWN; - switch (format.sampleSize()) { - case 8: - if (format.sampleType() == QAudioFormat::SignedInt) - pcmFormat = SND_PCM_FORMAT_S8; - else if (format.sampleType() == QAudioFormat::UnSignedInt) - pcmFormat = SND_PCM_FORMAT_U8; - break; - case 16: - if (format.sampleType() == QAudioFormat::SignedInt) { - pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian - ? SND_PCM_FORMAT_S16_LE : SND_PCM_FORMAT_S16_BE; - } else if (format.sampleType() == QAudioFormat::UnSignedInt) { - pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian - ? SND_PCM_FORMAT_U16_LE : SND_PCM_FORMAT_U16_BE; - } - break; - case 32: - if (format.sampleType() == QAudioFormat::SignedInt) { - pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian - ? SND_PCM_FORMAT_S32_LE : SND_PCM_FORMAT_S32_BE; - } else if (format.sampleType() == QAudioFormat::UnSignedInt) { - pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian - ? SND_PCM_FORMAT_U32_LE : SND_PCM_FORMAT_U32_BE; - } else if (format.sampleType() == QAudioFormat::Float) { - pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian - ? SND_PCM_FORMAT_FLOAT_LE : SND_PCM_FORMAT_FLOAT_BE; - } - } - - if (pcmFormat != SND_PCM_FORMAT_UNKNOWN) - err = snd_pcm_hw_params_set_format(pcmHandle, params, pcmFormat); - - // For now, just accept only audio/pcm codec - if (!format.codec().startsWith(QLatin1String("audio/pcm"))) - err = -1; - - if (err >= 0 && format.channelCount() != -1) { - err = snd_pcm_hw_params_test_channels(pcmHandle, params, format.channelCount()); - if (err >= 0) - err = snd_pcm_hw_params_set_channels(pcmHandle, params, format.channelCount()); - } - - if (err >= 0 && format.sampleRate() != -1) { - err = snd_pcm_hw_params_test_rate(pcmHandle, params, format.sampleRate(), 0); - if (err >= 0) - err = snd_pcm_hw_params_set_rate(pcmHandle, params, format.sampleRate(), 0); - } - - if (err >= 0 && pcmFormat != SND_PCM_FORMAT_UNKNOWN) - err = snd_pcm_hw_params_set_format(pcmHandle, params, pcmFormat); - - if (err >= 0) - err = snd_pcm_hw_params(pcmHandle, params); - - snd_pcm_close(pcmHandle); - - return (err == 0); -} - -void QAlsaAudioDeviceInfo::updateLists() -{ - // redo all lists based on current settings - sampleRatez.clear(); - channelz.clear(); - sizez.clear(); - byteOrderz.clear(); - typez.clear(); - codecz.clear(); - - if(!handle) - open(); - - if(!handle) - return; - - for(int i=0; i<(int)MAX_SAMPLE_RATES; i++) { - //if(snd_pcm_hw_params_test_rate(handle, params, SAMPLE_RATES[i], dir) == 0) - sampleRatez.append(SAMPLE_RATES[i]); - } - channelz.append(1); - channelz.append(2); - if (surround40) channelz.append(4); - if (surround51) channelz.append(6); - if (surround71) channelz.append(8); - sizez.append(8); - sizez.append(16); - sizez.append(32); - byteOrderz.append(QAudioFormat::LittleEndian); - byteOrderz.append(QAudioFormat::BigEndian); - typez.append(QAudioFormat::SignedInt); - typez.append(QAudioFormat::UnSignedInt); - typez.append(QAudioFormat::Float); - codecz.append(QLatin1String("audio/pcm")); - close(); -} - -QList<QByteArray> QAlsaAudioDeviceInfo::availableDevices(QAudio::Mode mode) -{ - QList<QByteArray> devices; - bool hasDefault = false; - -#if SND_LIB_VERSION >= 0x1000e // 1.0.14 - QByteArray filter; - - // Create a list of all current audio devices that support mode - void **hints, **n; - char *name, *descr, *io; - - if(snd_device_name_hint(-1, "pcm", &hints) < 0) { - qWarning() << "no alsa devices available"; - return devices; - } - n = hints; - - if(mode == QAudio::AudioInput) { - filter = "Input"; - } else { - filter = "Output"; - } - - while (*n != NULL) { - name = snd_device_name_get_hint(*n, "NAME"); - if (name != 0 && qstrcmp(name, "null") != 0) { - descr = snd_device_name_get_hint(*n, "DESC"); - io = snd_device_name_get_hint(*n, "IOID"); - - if ((descr != NULL) && ((io == NULL) || (io == filter))) { - devices.append(name); - if (strcmp(name, "default") == 0) - hasDefault = true; - } - - free(descr); - free(io); - } - free(name); - ++n; - } - snd_device_name_free_hint(hints); -#else - int idx = 0; - char* name; - - while(snd_card_get_name(idx,&name) == 0) { - devices.append(name); - if (strcmp(name, "default") == 0) - hasDefault = true; - idx++; - } -#endif - - if (!hasDefault && devices.size() > 0) - devices.prepend("default"); - - return devices; -} - -void QAlsaAudioDeviceInfo::checkSurround() -{ - surround40 = false; - surround51 = false; - surround71 = false; - - void **hints, **n; - char *name, *descr, *io; - - if(snd_device_name_hint(-1, "pcm", &hints) < 0) - return; - - n = hints; - - while (*n != NULL) { - name = snd_device_name_get_hint(*n, "NAME"); - descr = snd_device_name_get_hint(*n, "DESC"); - io = snd_device_name_get_hint(*n, "IOID"); - if((name != NULL) && (descr != NULL)) { - QString deviceName = QLatin1String(name); - if (mode == QAudio::AudioOutput) { - if(deviceName.contains(QLatin1String("surround40"))) - surround40 = true; - if(deviceName.contains(QLatin1String("surround51"))) - surround51 = true; - if(deviceName.contains(QLatin1String("surround71"))) - surround71 = true; - } - } - if(name != NULL) - free(name); - if(descr != NULL) - free(descr); - if(io != NULL) - free(io); - ++n; - } - snd_device_name_free_hint(hints); -} - -QString QAlsaAudioDeviceInfo::deviceFromCardName(const QString &card) -{ - int idx = 0; - char *name; - - QStringView shortName = QStringView{card}.mid(card.indexOf(QLatin1String("="), 0) + 1); - - while (snd_card_get_name(idx, &name) == 0) { - if (shortName.compare(QLatin1String(name)) == 0) - break; - idx++; - } - - return QString(QLatin1String("hw:%1,0")).arg(idx); -} - -QT_END_NAMESPACE |