Merge AudioServices into mainline.

1 files changed, 394 insertions, 0 deletions

diff --git a/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp
new file mode 100644
index 0000000..fe45f82
--- /dev/null
+++ b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp
@@ -0,0 +1,394 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtMultimedia module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+// We mean it.
+//
+
+#include "qaudiodeviceinfo_alsa_p.h"
+
+QAudioDeviceInfoPrivate::QAudioDeviceInfoPrivate(QByteArray dev, QAudio::Mode mode)
+{
+    handle = 0;
+
+    device = QLatin1String(dev);
+    this->mode = mode;
+}
+
+QAudioDeviceInfoPrivate::~QAudioDeviceInfoPrivate()
+{
+    close();
+}
+
+bool QAudioDeviceInfoPrivate::isFormatSupported(const QAudioFormat& format) const
+{
+    return testSettings(format);
+}
+
+QAudioFormat QAudioDeviceInfoPrivate::preferredFormat() const
+{
+    QAudioFormat nearest;
+    if(mode == QAudio::AudioOutput) {
+        nearest.setFrequency(44100);
+        nearest.setChannels(2);
+        nearest.setByteOrder(QAudioFormat::LittleEndian);
+        nearest.setSampleType(QAudioFormat::SignedInt);
+        nearest.setSampleSize(16);
+        nearest.setCodec(tr("audio/pcm"));
+    } else {
+        nearest.setFrequency(8000);
+        nearest.setChannels(1);
+        nearest.setSampleType(QAudioFormat::SignedInt);
+        nearest.setSampleSize(8);
+        nearest.setCodec(tr("audio/pcm"));
+    }
+    return nearest;
+}
+
+QAudioFormat QAudioDeviceInfoPrivate::nearestFormat(const QAudioFormat& format) const
+{
+    if(testSettings(format))
+        return format;
+    else
+        return preferredFormat();
+}
+
+QString QAudioDeviceInfoPrivate::deviceName() const
+{
+    return device;
+}
+
+QStringList QAudioDeviceInfoPrivate::codecList()
+{
+    updateLists();
+    return codecz;
+}
+
+QList<int> QAudioDeviceInfoPrivate::frequencyList()
+{
+    updateLists();
+    return freqz;
+}
+
+QList<int> QAudioDeviceInfoPrivate::channelsList()
+{
+    updateLists();
+    return channelz;
+}
+
+QList<int> QAudioDeviceInfoPrivate::sampleSizeList()
+{
+    updateLists();
+    return sizez;
+}
+
+QList<QAudioFormat::Endian> QAudioDeviceInfoPrivate::byteOrderList()
+{
+    updateLists();
+    return byteOrderz;
+}
+
+QList<QAudioFormat::SampleType> QAudioDeviceInfoPrivate::sampleTypeList()
+{
+    updateLists();
+    return typez;
+}
+
+bool QAudioDeviceInfoPrivate::open()
+{
+    int err = 0;
+    QString dev = device;
+    if(!dev.contains(tr("default"))) {
+        int idx = snd_card_get_index(dev.toLocal8Bit().constData());
+        dev = QString(tr("hw:%1,0")).arg(idx);
+    }
+    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 QAudioDeviceInfoPrivate::close()
+{
+    if(handle)
+        snd_pcm_close(handle);
+    handle = 0;
+}
+
+bool QAudioDeviceInfoPrivate::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 = 0;
+    snd_pcm_t* handle;
+    snd_pcm_hw_params_t *params;
+    QString dev = device;
+
+    // open()
+    if(!dev.contains(tr("default"))) {
+        int idx = snd_card_get_index(dev.toLocal8Bit().constData());
+        dev = QString(tr("hw:%1,0")).arg(idx);
+    }
+    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;
+    }
+
+    bool testChannel = false;
+    bool testCodec = false;
+    bool testFreq = false;
+    bool testType = false;
+    bool testSize = false;
+
+    int  dir = 0;
+
+    snd_pcm_nonblock( handle, 0 );
+    snd_pcm_hw_params_alloca( &params );
+    snd_pcm_hw_params_any( handle, params );
+
+    // For now, just accept only audio/pcm codec
+    if(!format.codec().startsWith(tr("audio/pcm"))) {
+        err=-1;
+    } else
+        testCodec = true;
+
+    if(err>=0 && format.channels() != -1) {
+        err = snd_pcm_hw_params_test_channels(handle,params,format.channels());
+        if(err>=0)
+            err = snd_pcm_hw_params_set_channels(handle,params,format.channels());
+        if(err>=0)
+            testChannel = true;
+    }
+
+    if(err>=0 && format.frequency() != -1) {
+        err = snd_pcm_hw_params_test_rate(handle,params,format.frequency(),0);
+        if(err>=0)
+            err = snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
+        if(err>=0)
+            testFreq = true;
+    }
+
+    if((err>=0 && format.sampleSize() != -1) &&
+            (format.sampleType() != QAudioFormat::Unknown)) {
+        switch(format.sampleSize()) {
+            case 8:
+                if(format.sampleType() == QAudioFormat::SignedInt)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
+                else if(format.sampleType() == QAudioFormat::UnSignedInt)
+                    err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
+                break;
+            case 16:
+                if(format.sampleType() == QAudioFormat::SignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
+                } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
+                }
+                break;
+            case 32:
+                if(format.sampleType() == QAudioFormat::SignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
+                } else if(format.sampleType() == QAudioFormat::UnSignedInt) {
+                    if(format.byteOrder() == QAudioFormat::LittleEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
+                    else if(format.byteOrder() == QAudioFormat::BigEndian)
+                        err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
+                }
+        }
+        if(err>=0) {
+            testSize = true;
+            testType = true;
+        }
+    }
+    if(err>=0)
+        err = snd_pcm_hw_params(handle, params);
+
+    if(err == 0) {
+        // settings work
+        // close()
+        if(handle)
+            snd_pcm_close(handle);
+        return true;
+    }
+    if(handle)
+        snd_pcm_close(handle);
+
+    return false;
+}
+
+void QAudioDeviceInfoPrivate::updateLists()
+{
+    // redo all lists based on current settings
+    freqz.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)
+        freqz.append(SAMPLE_RATES[i]);
+    }
+    channelz.append(1);
+    channelz.append(2);
+    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(tr("audio/pcm"));
+    close();
+}
+
+QList<QByteArray> QAudioDeviceInfoPrivate::deviceList(QAudio::Mode mode)
+{
+    QAudio::Mode _m;
+    QList<QByteArray> devices;
+    QByteArray filter;
+    QString dir;
+
+    // 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;
+
+    while (*n != NULL) {
+        _m = QAudio::AudioOutput;
+        name = snd_device_name_get_hint(*n, "NAME");
+        descr = snd_device_name_get_hint(*n, "DESC");
+        io = snd_device_name_get_hint(*n, "IOID");
+        dir = QString::fromUtf8(io);
+        if((name != NULL) && (descr != NULL) && ((io == NULL) || (dir.length() ==filter.length()))) {
+            if(dir.length() == 5)
+                _m = QAudio::AudioInput;
+            if(io == NULL)
+                _m = mode;
+
+            QString str = tr(name);
+
+            if(str.contains(tr("default"))) {
+                int pos = str.indexOf(tr("="),0);
+                devices.append(str.mid(pos+1).toLocal8Bit().constData());
+            }
+        }
+        if(name != NULL)
+            free(name);
+        if(descr != NULL)
+            free(descr);
+        if(io != NULL)
+            free(io);
+        n++;
+    }
+    snd_device_name_free_hint(hints);
+
+    if(devices.size() > 0) {
+        devices.append("default");
+        if(mode == QAudio::AudioInput) {
+            filter.append("Input");
+        } else {
+            filter.append("Output");
+        }
+    }
+
+    return devices;
+}
+
+QByteArray QAudioDeviceInfoPrivate::defaultInputDevice()
+{
+    QList<QByteArray> devices = deviceList(QAudio::AudioInput);
+    if(devices.size() == 0)
+        return QByteArray();
+
+    return QByteArray("default");
+}
+
+QByteArray QAudioDeviceInfoPrivate::defaultOutputDevice()
+{
+    QList<QByteArray> devices = deviceList(QAudio::AudioOutput);
+    if(devices.size() == 0)
+        return QByteArray();
+
+    return QByteArray("default");
+}
+
+