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#pragma once |
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#ifdef MAKE_FFMPEG_PLAYER |
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extern "C" { |
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#include <libavcodec/avcodec.h> |
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#include <libavformat/avformat.h> |
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#include <libavutil/avutil.h> |
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#include <libswresample/swresample.h> |
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} |
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#include "ffmpeg_audiooutput.hh" |
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#include <QObject> |
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#include <QMutex> |
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#include <QByteArray> |
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#include <QThread> |
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#include <QAudioDevice> |
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#include <QDataStream> |
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#include <QMediaDevices> |
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#include <QString> |
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#include <vector> |
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namespace Ffmpeg { |
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using std::vector; |
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class DecoderThread; |
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class AudioService: public QObject |
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{ |
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Q_OBJECT |
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QScopedPointer< DecoderThread > thread; |
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public: |
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static AudioService & instance(); |
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void playMemory( const char * ptr, int size ); |
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void stop(); |
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signals: |
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void cancelPlaying( bool waitUntilFinished ); |
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void error( const QString & message ); |
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private: |
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AudioService() = default; |
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~AudioService(); |
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}; |
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struct DecoderContext |
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{ |
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enum { |
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kBufferSize = 32768 |
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}; |
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static QMutex deviceMutex_; |
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QAtomicInt & isCancelled_; |
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QByteArray audioData_; |
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QDataStream audioDataStream_; |
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AVFormatContext * formatContext_; |
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#if LIBAVCODEC_VERSION_MAJOR < 59 |
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AVCodec * codec_; |
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#else |
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const AVCodec * codec_; |
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#endif |
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AVCodecContext * codecContext_; |
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AVIOContext * avioContext_; |
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AVStream * audioStream_; |
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AudioOutput * audioOutput; |
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bool avformatOpened_; |
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SwrContext * swr_; |
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DecoderContext( const QByteArray & audioData, QAtomicInt & isCancelled ); |
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~DecoderContext(); |
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bool openCodec( QString & errorString ); |
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void closeCodec(); |
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bool openOutputDevice( QString & errorString ); |
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void closeOutputDevice(); |
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bool play( QString & errorString ); |
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void stop(); |
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bool normalizeAudio( AVFrame * frame, vector< uint8_t > & samples ); |
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void playFrame( AVFrame * frame ); |
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}; |
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class DecoderThread: public QThread |
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{ |
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Q_OBJECT |
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static QMutex deviceMutex_; |
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QAtomicInt isCancelled_; |
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QByteArray audioData_; |
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DecoderContext d; |
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public: |
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DecoderThread( const QByteArray & audioData, QObject * parent ); |
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virtual ~DecoderThread(); |
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public slots: |
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void run(); |
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void cancel( bool waitUntilFinished ); |
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signals: |
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void error( const QString & message ); |
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}; |
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} |
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#endif |
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