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120 lines
2.3 KiB
C++
120 lines
2.3 KiB
C++
#ifndef MEDIAPANEL_H
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#define MEDIAPANEL_H
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extern "C" {
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#include <libavformat/avformat.h>
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#include <libavcodec/avcodec.h>
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#include <libswscale/swscale.h>
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#include <libswresample/swresample.h>
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}
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#include <file.h>
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#include <QAudioOutput>
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#include <QLabel>
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#include <QPushButton>
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#include <QSlider>
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#include <QTimer>
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#include "panel.h"
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class MediaPanel : public Panel
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{
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Q_OBJECT
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public:
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MediaPanel(QWidget *parent = nullptr);
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virtual ~MediaPanel() override;
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qint64 ReadAudio(char *data, qint64 maxlen);
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protected:
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virtual void OnOpeningData(void *data) override;
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virtual void OnClosingData(void *data) override;
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private:
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void Close();
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void VideoUpdate(float t);
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void AudioSeek(float t);
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int GetNextFrame(AVCodecContext *cctx, unsigned int stream, AVFrame *frame);
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void ClearQueue();
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void StartAudioPlayback();
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static float SliderValueToFloatSeconds(int i, int max, AVStream *s);
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AVFormatContext *m_FmtCtx;
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AVPacket *m_Packet;
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std::list<AVFrame*> m_FrameQueue;
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AVCodecContext *m_VideoCodecCtx;
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AVStream *m_VideoStream;
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AVFrame *m_SwsFrame;
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AVFrame *m_AudioFrame;
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AVCodecContext *m_AudioCodecCtx;
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AVStream *m_AudioStream;
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SwsContext *m_SwsCtx;
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SwrContext *m_SwrCtx;
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AVIOContext *m_IoCtx;
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si::MemoryBuffer m_Data;
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QLabel *m_ImgViewer;
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QAudioOutput *m_AudioOutput;
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QIODevice *m_AudioNotifyDevice;
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QByteArray m_AudioBuffer;
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AVSampleFormat m_AudioOutputSampleFmt;
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QSlider *m_PlayheadSlider;
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QPushButton *m_PlayBtn;
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QTimer *m_PlaybackTimer;
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qint64 m_PlaybackStart;
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float m_PlaybackOffset;
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bool m_AudioFlushed;
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bool m_SliderPressed;
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private slots:
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void Play(bool e);
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void TimerUpdate();
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void SliderPressed();
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void SliderMoved(int i);
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void SliderReleased();
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void AudioStateChanged(QAudio::State state);
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};
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class MediaAudioDevice : public QIODevice
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{
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Q_OBJECT
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public:
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MediaAudioDevice(MediaPanel *o = nullptr);
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protected:
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virtual qint64 readData(char *data, qint64 maxSize) override;
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virtual qint64 writeData(const char *data, qint64 maxSize) override;
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private:
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MediaPanel *m_MediaPanel;
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};
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class ClickableSlider : public QSlider
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{
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Q_OBJECT
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public:
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ClickableSlider(Qt::Orientation orientation, QWidget *parent = nullptr);
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ClickableSlider(QWidget *parent = nullptr);
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protected:
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virtual void mousePressEvent(QMouseEvent *e) override;
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};
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#endif // MEDIAPANEL_H
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