diff options
Diffstat (limited to 'examples/multimedia/audiodecoder')
| -rw-r--r-- | examples/multimedia/audiodecoder/audiodecoder.cpp | 206 | ||||
| -rw-r--r-- | examples/multimedia/audiodecoder/audiodecoder.h | 102 | ||||
| -rw-r--r-- | examples/multimedia/audiodecoder/audiodecoder.pro | 15 | ||||
| -rw-r--r-- | examples/multimedia/audiodecoder/main.cpp | 105 | ||||
| -rw-r--r-- | examples/multimedia/audiodecoder/wavefilewriter.cpp | 204 | ||||
| -rw-r--r-- | examples/multimedia/audiodecoder/wavefilewriter.h | 80 |
6 files changed, 0 insertions, 712 deletions
diff --git a/examples/multimedia/audiodecoder/audiodecoder.cpp b/examples/multimedia/audiodecoder/audiodecoder.cpp deleted file mode 100644 index f812fd3b6..000000000 --- a/examples/multimedia/audiodecoder/audiodecoder.cpp +++ /dev/null @@ -1,206 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "audiodecoder.h" -#include <stdio.h> - -AudioDecoder::AudioDecoder(bool isPlayback, bool isDelete) - : m_cout(stdout, QIODevice::WriteOnly) -{ - m_isPlayback = isPlayback; - m_isDelete = isDelete; - - // Make sure the data we receive is in correct PCM format. - // Our wav file writer only supports SignedInt sample type. - QAudioFormat format; - format.setChannelCount(2); - format.setSampleSize(16); - format.setSampleRate(48000); - format.setCodec("audio/pcm"); - format.setSampleType(QAudioFormat::SignedInt); - m_decoder.setAudioFormat(format); - - connect(&m_decoder, &QAudioDecoder::bufferReady, - this, &AudioDecoder::bufferReady); - connect(&m_decoder, QOverload<QAudioDecoder::Error>::of(&QAudioDecoder::error), - this, QOverload<QAudioDecoder::Error>::of(&AudioDecoder::error)); - connect(&m_decoder, &QAudioDecoder::stateChanged, - this, &AudioDecoder::stateChanged); - connect(&m_decoder, &QAudioDecoder::finished, - this, &AudioDecoder::finished); - connect(&m_decoder, &QAudioDecoder::positionChanged, - this, &AudioDecoder::updateProgress); - connect(&m_decoder, &QAudioDecoder::durationChanged, - this, &AudioDecoder::updateProgress); - - connect(&m_soundEffect, &QSoundEffect::statusChanged, - this, &AudioDecoder::playbackStatusChanged); - connect(&m_soundEffect, &QSoundEffect::playingChanged, - this, &AudioDecoder::playingChanged); - - m_progress = -1.0; -} - -void AudioDecoder::setSourceFilename(const QString &fileName) -{ - m_decoder.setSourceFilename(fileName); -} - -void AudioDecoder::start() -{ - m_decoder.start(); -} - -void AudioDecoder::stop() -{ - m_decoder.stop(); -} - -void AudioDecoder::setTargetFilename(const QString &fileName) -{ - m_targetFilename = fileName; -} - -void AudioDecoder::bufferReady() -{ - // read a buffer from audio decoder - QAudioBuffer buffer = m_decoder.read(); - if (!buffer.isValid()) - return; - - if (!m_fileWriter.isOpen() && !m_fileWriter.open(m_targetFilename, buffer.format())) { - m_decoder.stop(); - return; - } - - m_fileWriter.write(buffer); -} - -void AudioDecoder::error(QAudioDecoder::Error error) -{ - switch (error) { - case QAudioDecoder::NoError: - return; - case QAudioDecoder::ResourceError: - m_cout << "Resource error\n"; - break; - case QAudioDecoder::FormatError: - m_cout << "Format error\n"; - break; - case QAudioDecoder::AccessDeniedError: - m_cout << "Access denied error\n"; - break; - case QAudioDecoder::ServiceMissingError: - m_cout << "Service missing error\n"; - break; - } - - emit done(); -} - -void AudioDecoder::stateChanged(QAudioDecoder::State newState) -{ - switch (newState) { - case QAudioDecoder::DecodingState: - m_cout << "Decoding...\n"; - break; - case QAudioDecoder::StoppedState: - m_cout << "Decoding stopped\n"; - break; - } -} - -void AudioDecoder::finished() -{ - if (!m_fileWriter.close()) - m_cout << "Failed to finilize output file\n"; - - m_cout << "Decoding finished\n"; - - if (m_isPlayback) { - m_cout << "Starting playback\n"; - m_soundEffect.setSource(QUrl::fromLocalFile(m_targetFilename)); - m_soundEffect.play(); - } else { - emit done(); - } -} - -void AudioDecoder::playbackStatusChanged() -{ - if (m_soundEffect.status() == QSoundEffect::Error) { - m_cout << "Playback error\n"; - emit done(); - } -} - -void AudioDecoder::playingChanged() -{ - if (!m_soundEffect.isPlaying()) { - m_cout << "Playback finished\n"; - if (m_isDelete) - QFile::remove(m_targetFilename); - emit done(); - } -} - -void AudioDecoder::updateProgress() -{ - qint64 position = m_decoder.position(); - qint64 duration = m_decoder.duration(); - qreal progress = m_progress; - if (position >= 0 && duration > 0) - progress = position / (qreal)duration; - - if (progress > m_progress + 0.1) { - m_cout << "Decoding progress: " << (int)(progress * 100.0) << "%\n"; - m_progress = progress; - } -} diff --git a/examples/multimedia/audiodecoder/audiodecoder.h b/examples/multimedia/audiodecoder/audiodecoder.h deleted file mode 100644 index e460ac94f..000000000 --- a/examples/multimedia/audiodecoder/audiodecoder.h +++ /dev/null @@ -1,102 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef AUDIODECODER_H -#define AUDIODECODER_H - -#include "wavefilewriter.h" - -#include <QAudioDecoder> -#include <QSoundEffect> -#include <QTextStream> - -class AudioDecoder : public QObject -{ - Q_OBJECT - -public: - AudioDecoder(bool isPlayback, bool isDelete); - ~AudioDecoder() { } - - void setSourceFilename(const QString &fileName); - void start(); - void stop(); - - void setTargetFilename(const QString &fileName); - -signals: - void done(); - -public slots: - void bufferReady(); - void error(QAudioDecoder::Error error); - void stateChanged(QAudioDecoder::State newState); - void finished(); - - void playbackStatusChanged(); - void playingChanged(); - -private slots: - void updateProgress(); - -private: - bool m_isPlayback; - bool m_isDelete; - QAudioDecoder m_decoder; - QTextStream m_cout; - - QString m_targetFilename; - WaveFileWriter m_fileWriter; - QSoundEffect m_soundEffect; - - qreal m_progress; -}; - -#endif // AUDIODECODER_H diff --git a/examples/multimedia/audiodecoder/audiodecoder.pro b/examples/multimedia/audiodecoder/audiodecoder.pro deleted file mode 100644 index 4cfb31339..000000000 --- a/examples/multimedia/audiodecoder/audiodecoder.pro +++ /dev/null @@ -1,15 +0,0 @@ -TEMPLATE = app -TARGET = audiodecoder - -HEADERS = \ - audiodecoder.h \ - wavefilewriter.h -SOURCES = main.cpp \ - audiodecoder.cpp \ - wavefilewriter.cpp - -QT += multimedia -CONFIG += console - -target.path = $$[QT_INSTALL_EXAMPLES]/multimedia/audiodecoder -INSTALLS += target diff --git a/examples/multimedia/audiodecoder/main.cpp b/examples/multimedia/audiodecoder/main.cpp deleted file mode 100644 index 9c536ef0a..000000000 --- a/examples/multimedia/audiodecoder/main.cpp +++ /dev/null @@ -1,105 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "audiodecoder.h" - -#include <QCoreApplication> -#include <QDir> -#include <QFileInfo> -#include <QTextStream> - -#include <stdio.h> - -int main(int argc, char *argv[]) -{ - QCoreApplication app(argc, argv); - - QTextStream cout(stdout, QIODevice::WriteOnly); - if (app.arguments().size() < 2) { - cout << "Usage: audiodecoder [-p] [-pd] SOURCEFILE [TARGETFILE]\n"; - cout << "Set -p option if you want to play output file.\n"; - cout << "Set -pd option if you want to play output file and delete it after successful playback.\n"; - cout << "Default TARGETFILE name is \"out.wav\" in the same directory as the source file.\n"; - return 0; - } - - bool isPlayback = false; - bool isDelete = false; - - if (app.arguments().at(1) == "-p") - isPlayback = true; - else if (app.arguments().at(1) == "-pd") { - isPlayback = true; - isDelete = true; - } - - QFileInfo sourceFile; - QFileInfo targetFile; - - int sourceFileIndex = (isPlayback || isDelete) ? 2 : 1; - if (app.arguments().size() <= sourceFileIndex) { - cout << "Error: source filename is not specified.\n"; - return 0; - } - sourceFile.setFile(app.arguments().at(sourceFileIndex)); - if (app.arguments().size() > sourceFileIndex + 1) - targetFile.setFile(app.arguments().at(sourceFileIndex + 1)); - else - targetFile.setFile(sourceFile.dir().absoluteFilePath("out.wav")); - - AudioDecoder decoder(isPlayback, isDelete); - QObject::connect(&decoder, &AudioDecoder::done, - &app, &QCoreApplication::quit); - decoder.setSourceFilename(sourceFile.absoluteFilePath()); - decoder.setTargetFilename(targetFile.absoluteFilePath()); - decoder.start(); - - return app.exec(); -} diff --git a/examples/multimedia/audiodecoder/wavefilewriter.cpp b/examples/multimedia/audiodecoder/wavefilewriter.cpp deleted file mode 100644 index cb1abbc9f..000000000 --- a/examples/multimedia/audiodecoder/wavefilewriter.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "wavefilewriter.h" - -#include <limits.h> - -struct chunk -{ - char id[4]; - quint32 size; -}; - -struct RIFFHeader -{ - chunk descriptor; // "RIFF" - char type[4]; // "WAVE" -}; - -struct WAVEHeader -{ - chunk descriptor; - quint16 audioFormat; - quint16 numChannels; - quint32 sampleRate; - quint32 byteRate; - quint16 blockAlign; - quint16 bitsPerSample; -}; - -struct DATAHeader -{ - chunk descriptor; -}; - -struct CombinedHeader -{ - RIFFHeader riff; - WAVEHeader wave; - DATAHeader data; -}; -static const int HeaderLength = sizeof(CombinedHeader); - - -WaveFileWriter::WaveFileWriter(QObject *parent) - : QObject(parent) - , m_dataLength(0) -{ -} - -WaveFileWriter::~WaveFileWriter() -{ - close(); -} - -bool WaveFileWriter::open(const QString& fileName, const QAudioFormat& format) -{ - if (file.isOpen()) - return false; // file already open - - if (format.codec() != "audio/pcm" || format.sampleType() != QAudioFormat::SignedInt) - return false; // data format is not supported - - file.setFileName(fileName); - if (!file.open(QIODevice::WriteOnly)) - return false; // unable to open file for writing - - if (!writeHeader(format)) - return false; - - m_format = format; - return true; -} - -bool WaveFileWriter::write(const QAudioBuffer &buffer) -{ - if (buffer.format() != m_format) - return false; // buffer format has changed - - qint64 written = file.write((const char *)buffer.constData(), buffer.byteCount()); - m_dataLength += written; - return written == buffer.byteCount(); -} - -bool WaveFileWriter::close() -{ - bool result = false; - if (file.isOpen()) { - Q_ASSERT(m_dataLength < INT_MAX); - result = writeDataLength(); - - m_dataLength = 0; - file.close(); - } - return result; -} - -bool WaveFileWriter::writeHeader(const QAudioFormat &format) -{ - // check if format is supported - if (format.byteOrder() == QAudioFormat::BigEndian || format.sampleType() != QAudioFormat::SignedInt) - return false; - - CombinedHeader header; - memset(&header, 0, HeaderLength); - -#ifndef Q_LITTLE_ENDIAN - // only implemented for LITTLE ENDIAN - return false; -#else - // RIFF header - memcpy(header.riff.descriptor.id, "RIFF", 4); - header.riff.descriptor.size = 0; // this will be updated with correct duration: - // m_dataLength + HeaderLength - 8 - // WAVE header - memcpy(header.riff.type, "WAVE", 4); - memcpy(header.wave.descriptor.id, "fmt ", 4); - header.wave.descriptor.size = quint32(16); - header.wave.audioFormat = quint16(1); - header.wave.numChannels = quint16(format.channelCount()); - header.wave.sampleRate = quint32(format.sampleRate()); - header.wave.byteRate = quint32(format.sampleRate() * format.channelCount() * format.sampleSize() / 8); - header.wave.blockAlign = quint16(format.channelCount() * format.sampleSize() / 8); - header.wave.bitsPerSample = quint16(format.sampleSize()); - - // DATA header - memcpy(header.data.descriptor.id,"data", 4); - header.data.descriptor.size = 0; // this will be updated with correct data length: m_dataLength - - return (file.write(reinterpret_cast<const char *>(&header), HeaderLength) == HeaderLength); -#endif -} - -bool WaveFileWriter::writeDataLength() -{ -#ifndef Q_LITTLE_ENDIAN - // only implemented for LITTLE ENDIAN - return false; -#endif - - if (file.isSequential()) - return false; - - // seek to RIFF header size, see header.riff.descriptor.size above - if (!file.seek(4)) - return false; - - quint32 length = m_dataLength + HeaderLength - 8; - if (file.write(reinterpret_cast<const char *>(&length), 4) != 4) - return false; - - // seek to DATA header size, see header.data.descriptor.size above - if (!file.seek(40)) - return false; - - return file.write(reinterpret_cast<const char *>(&m_dataLength), 4) == 4; -} diff --git a/examples/multimedia/audiodecoder/wavefilewriter.h b/examples/multimedia/audiodecoder/wavefilewriter.h deleted file mode 100644 index 846284746..000000000 --- a/examples/multimedia/audiodecoder/wavefilewriter.h +++ /dev/null @@ -1,80 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef WAVEFILEWRITER_H -#define WAVEFILEWRITER_H - -#include <QAudioBuffer> -#include <QFile> -#include <QObject> - -class WaveFileWriter : public QObject -{ - Q_OBJECT - -public: - explicit WaveFileWriter(QObject *parent = 0); - ~WaveFileWriter(); - - bool open(const QString &fileName, const QAudioFormat &format); - bool write(const QAudioBuffer &buffer); - bool close(); - bool isOpen() const { return file.isOpen(); } - -private: - bool writeHeader(const QAudioFormat &format); - bool writeDataLength(); - - QFile file; - QAudioFormat m_format; - qint64 m_dataLength; -}; - -#endif // WAVEFILEWRITER_H |