c9533b5aaf
-> qt_gst_element_get_factory_name(GstElement *elem) Change-Id: Icf806488b49fbcdecdd605b6316bd1ef8796a883 Reviewed-by: Christian Stromme <christian.stromme@theqtcompany.com>
145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "camerabinaudioencoder.h"
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#include "camerabincontainer.h"
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#include <private/qgstcodecsinfo_p.h>
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#include <private/qgstutils_p.h>
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#include <QtCore/qdebug.h>
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QT_BEGIN_NAMESPACE
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CameraBinAudioEncoder::CameraBinAudioEncoder(QObject *parent)
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:QAudioEncoderSettingsControl(parent),
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m_codecs(QGstCodecsInfo::AudioEncoder)
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{
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}
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CameraBinAudioEncoder::~CameraBinAudioEncoder()
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{
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}
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QStringList CameraBinAudioEncoder::supportedAudioCodecs() const
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{
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return m_codecs.supportedCodecs();
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}
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QString CameraBinAudioEncoder::codecDescription(const QString &codecName) const
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{
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return m_codecs.codecDescription(codecName);
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}
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QList<int> CameraBinAudioEncoder::supportedSampleRates(const QAudioEncoderSettings &, bool *) const
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{
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//TODO check element caps to find actual values
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return QList<int>();
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}
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QAudioEncoderSettings CameraBinAudioEncoder::audioSettings() const
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{
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return m_audioSettings;
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}
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void CameraBinAudioEncoder::setAudioSettings(const QAudioEncoderSettings &settings)
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{
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if (m_audioSettings != settings) {
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m_audioSettings = settings;
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m_actualAudioSettings = settings;
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emit settingsChanged();
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}
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}
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QAudioEncoderSettings CameraBinAudioEncoder::actualAudioSettings() const
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{
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return m_actualAudioSettings;
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}
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void CameraBinAudioEncoder::setActualAudioSettings(const QAudioEncoderSettings &settings)
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{
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m_actualAudioSettings = settings;
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}
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void CameraBinAudioEncoder::resetActualSettings()
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{
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m_actualAudioSettings = m_audioSettings;
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}
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GstEncodingProfile *CameraBinAudioEncoder::createProfile()
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{
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QString codec = m_actualAudioSettings.codec();
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QString preset = m_actualAudioSettings.encodingOption(QStringLiteral("preset")).toString();
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GstCaps *caps;
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if (codec.isEmpty())
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return 0;
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else
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caps = gst_caps_from_string(codec.toLatin1());
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GstEncodingProfile *profile = (GstEncodingProfile *)gst_encoding_audio_profile_new(
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caps,
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!preset.isEmpty() ? preset.toLatin1().constData() : NULL, //preset
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NULL, //restriction
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0); //presence
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gst_caps_unref(caps);
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return profile;
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}
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void CameraBinAudioEncoder::applySettings(GstElement *encoder)
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{
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GObjectClass * const objectClass = G_OBJECT_GET_CLASS(encoder);
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const char * const name = qt_gst_element_get_factory_name(encoder);
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const bool isVorbis = qstrcmp(name, "vorbisenc") == 0;
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const int bitRate = m_actualAudioSettings.bitRate();
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if (!isVorbis && bitRate == -1) {
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// Bit rate is invalid, don't evaluate the remaining conditions unless the encoder is
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// vorbisenc which is known to accept -1 as an unspecified bitrate.
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} else if (g_object_class_find_property(objectClass, "bitrate")) {
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g_object_set(G_OBJECT(encoder), "bitrate", bitRate, NULL);
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} else if (g_object_class_find_property(objectClass, "target-bitrate")) {
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g_object_set(G_OBJECT(encoder), "target-bitrate", bitRate, NULL);
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}
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if (isVorbis) {
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static const double qualities[] = { 0.1, 0.3, 0.5, 0.7, 1.0 };
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g_object_set(G_OBJECT(encoder), "quality", qualities[m_actualAudioSettings.quality()], NULL);
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}
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}
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QT_END_NAMESPACE
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