Converter.h

#ifndef CONVERTER_H_
#define CONVERTER_H_

#include <QString>
#include <QObject>
#include <QQueue>
#include <FileFormats.h>

extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libavresample/avresample.h>
#include <libavutil/opt.h>
}

class InternetVideo;
class Converter : public QObject
{
    Q_OBJECT

public:

    Converter();
    void AddToQueue(InternetVideo* v);
    void StartConverting();

    void SetFormatSettings(FileFormat format, int audioQuality, int videoQuality);
    void SetTargetPath(QString target) { m_TargetPath = target; }

protected slots:
    void onConvertingFinished(InternetVideo *v);

signals:
    void QueueFinished();
    void ConvertingFinished(InternetVideo *v);

private:

    bool OpenInput(const char* path);
    bool OpenOutput(QString targetFilename);

    void Convert(InternetVideo *v);
    AVStream * add_audio_stream(AVFormatContext * m_OutputFormatCtx, AVCodec ** m_AudioCodec, enum AVCodecID audio_codec);
    AVStream * add_video_stream(AVFormatContext * m_OutputFormatCtx, AVCodec ** m_AudioCodec, enum AVCodecID audio_codec);
    int open_audio(AVFormatContext * m_OutputFormatCtx, AVCodec * m_AudioCodec, AVStream * audio_st);
    int open_video(AVFormatContext * m_OutputFormatCtx, AVCodec * m_VideoCodec, AVStream * video_st);
    int decode_frame(AVPacket* packet, AVFrame* outputFrame);
    int decode_packet(AVPacket* packet, AVFrame* outputFrame);
    void write_audio_frame(AVFrame *frame, uint8_t** audio_dst_data, int audio_dst_bufsize);
    void write_delayed_frames(AVFormatContext * m_OutputFormatCtx, AVStream * audio_st);
    QQueue<InternetVideo*> m_Queue;

    bool m_Converting;
    bool m_audioOnly;

    QString m_TargetPath;

    FileFormat m_Format;
    AudioQuality m_AudioQuality;
    VideoQuality m_VideoQuality;
    QString m_FileEnding;

    //libav stuff
    AVFormatContext *m_FormatCtx;
    AVFormatContext *m_OutputFormatCtx;
    AVCodecContext *m_VideoCodecCtx;
    AVCodecContext *m_AudioCodecCtx;
    AVCodec *m_VideoCodec;
    AVCodec *m_AudioCodec;
    AVCodec *m_OutputAudioCodec;
    AVCodec *m_OutputVideoCodec;
    AVAudioResampleContext *m_avresampleCtx;
    int m_VideoStreamIndex;
    int m_AudioStreamIndex;
    int m_Audio_channels;
    int audio_input_frame_size;
    int got_frame;
    int audiobufsize = 0;
    AVFrame* m_DecodedAudioFrame;
    AVFrame* m_DecodedVideoFrame;
    uint8_t** audio_dst_data;
    uint8_t*  video_dst_data;
    AVStream * audio_st;
    AVStream * video_st;
    int audio_dst_linesize;
    int audio_dst_bufsize;
};

#endif