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/**
* \file soundsourcemediafoundation.h
* \class SoundSourceMediaFoundation
* \brief Decodes MPEG4/AAC audio using the SourceReader interface of the
* Media Foundation framework included in Windows 7.
* \author Bill Good <bkgood at gmail dot com>
* \author Albert Santoni <alberts at mixxx dot org>
* \date Jan 10, 2011
*/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef SOUNDSOURCEMEDIAFOUNDATION_H
#define SOUNDSOURCEMEDIAFOUNDATION_H
#include <QFile>
#include <QString>
#include "util/defs.h"
#include "defs_version.h"
#include "soundsource.h"
#ifdef Q_OS_WIN
#define MY_EXPORT __declspec(dllexport)
#else
#define MY_EXPORT
#endif
class IMFSourceReader;
class IMFMediaType;
class IMFMediaSource;
class SoundSourceMediaFoundation : public Mixxx::SoundSource {
public:
SoundSourceMediaFoundation(QString filename);
~SoundSourceMediaFoundation();
Result open();
long seek(long filepos);
unsigned read(unsigned long size, const SAMPLE *buffer);
inline long unsigned length();
Result parseHeader();
static QList<QString> supportedFileExtensions();
private:
bool configureAudioStream();
bool readProperties();
void copyFrames(qint16 *dest, size_t *destFrames, const qint16 *src,
size_t srcFrames);
static inline qreal secondsFromMF(qint64 mf);
static inline qint64 mfFromSeconds(qreal sec);
static inline qint64 frameFromMF(qint64 mf);
static inline qint64 mfFromFrame(qint64 frame);
QFile m_file;
IMFSourceReader *m_pReader;
IMFMediaType *m_pAudioType;
wchar_t *m_wcFilename;
int m_nextFrame;
qint16 *m_leftoverBuffer;
size_t m_leftoverBufferSize;
size_t m_leftoverBufferLength;
int m_leftoverBufferPosition;
qint64 m_mfDuration;
long m_iCurrentPosition;
bool m_dead;
bool m_seeking;
};
extern "C" MY_EXPORT const char* getMixxxVersion()
{
return VERSION;
}
extern "C" MY_EXPORT int getSoundSourceAPIVersion()
{
return MIXXX_SOUNDSOURCE_API_VERSION;
}
extern "C" MY_EXPORT Mixxx::SoundSource* getSoundSource(QString filename)
{
return new SoundSourceMediaFoundation(filename);
}
extern "C" MY_EXPORT char** supportedFileExtensions()
{
QList<QString> exts = SoundSourceMediaFoundation::supportedFileExtensions();
//Convert to C string array.
char** c_exts = (char**)malloc((exts.count() + 1) * sizeof(char*));
for (int i = 0; i < exts.count(); i++)
{
QByteArray qba = exts[i].toUtf8();
c_exts[i] = strdup(qba.constData());
qDebug() << c_exts[i];
}
c_exts[exts.count()] = NULL; //NULL terminate the list
return c_exts;
}
extern "C" MY_EXPORT void freeFileExtensions(char **exts)
{
for (int i(0); exts[i]; ++i) free(exts[i]);
free(exts);
}
#endif // ifndef SOUNDSOURCEMEDIAFOUNDATION_H
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