File indexing completed on 2025-01-19 03:57:03 

0001 /*********************************************************
0002  * Copyright (C) 2020, Val Doroshchuk <valbok@gmail.com> *
0003  *                                                       *
0004  * This file is part of QtAVPlayer.                      *
0005  * Free Qt Media Player based on FFmpeg.                 *
0006  *********************************************************/
0007 
0008 #ifndef QAVDEMUXER_H
0009 #define QAVDEMUXER_H
0010 
0011 //
0012 //  W A R N I N G
0013 //  -------------
0014 //
0015 // This file is not part of the Qt API. It exists purely as an
0016 // implementation detail. This header file may change from version to
0017 // version without notice, or even be removed.
0018 //
0019 // We mean it.
0020 //
0021 
0022 #include "qavpacket_p.h"
0023 #include "qavstream.h"
0024 #include "qavframe.h"
0025 #include "qavsubtitleframe.h"
0026 #include <QMap>
0027 #include <memory>
0028 
0029 QT_BEGIN_NAMESPACE
0030 
0031 extern "C" {
0032 #include <libavutil/avutil.h>
0033 }
0034 
0035 class QAVDemuxerPrivate;
0036 class QAVVideoCodec;
0037 class QAVAudioCodec;
0038 class QAVIODevice;
0039 struct AVStream;
0040 struct AVCodecContext;
0041 struct AVFormatContext;
0042 class QAVDemuxer
0043 {
0044 public:
0045     QAVDemuxer();
0046     ~QAVDemuxer();
0047 
0048     void abort(bool stop = true);
0049     int load(const QString &url, QAVIODevice *dev = nullptr);
0050     void unload();
0051 
0052     AVMediaType currentCodecType(int index) const;
0053 
0054     QList<QAVStream> availableVideoStreams() const;
0055     QList<QAVStream> currentVideoStreams() const;
0056     bool setVideoStreams(const QList<QAVStream> &streams);
0057 
0058     QList<QAVStream> availableAudioStreams() const;
0059     QList<QAVStream> currentAudioStreams() const;
0060     bool setAudioStreams(const QList<QAVStream> &streams);
0061 
0062     QList<QAVStream> availableSubtitleStreams() const;
0063     QList<QAVStream> currentSubtitleStreams() const;
0064     bool setSubtitleStreams(const QList<QAVStream> &streams);
0065 
0066     QAVPacket read();
0067 
0068     void decode(const QAVPacket &pkt, QList<QAVFrame> &frames) const;
0069     void decode(const QAVPacket &pkt, QList<QAVSubtitleFrame> &frames) const;
0070     void flushCodecBuffers();
0071 
0072     double duration() const;
0073     bool seekable() const;
0074     int seek(double sec);
0075     bool eof() const;
0076     double videoFrameRate() const;
0077 
0078     QMap<QString, QString> metadata() const;
0079 
0080     QString bitstreamFilter() const;
0081     int applyBitstreamFilter(const QString &bsfs);
0082 
0083     QString inputFormat() const;
0084     void setInputFormat(const QString &format);
0085 
0086     QString inputVideoCodec() const;
0087     void setInputVideoCodec(const QString &codec);
0088 
0089     QMap<QString, QString> inputOptions() const;
0090     void setInputOptions(const QMap<QString, QString> &opts);
0091 
0092     void onFrameSent(const QAVStreamFrame &frame);
0093     QAVStream::Progress progress(const QAVStream &s) const;
0094 
0095     bool isMasterStream(const QAVStream &stream) const;
0096 
0097     static QStringList supportedFormats();
0098     static QStringList supportedVideoCodecs();
0099     static QStringList supportedProtocols();
0100     static QStringList supportedBitstreamFilters();
0101 
0102 protected:
0103     std::unique_ptr<QAVDemuxerPrivate> d_ptr;
0104 
0105 private:
0106     int resetCodecs();
0107 
0108     Q_DISABLE_COPY(QAVDemuxer)
0109     Q_DECLARE_PRIVATE(QAVDemuxer)
0110 };
0111 
0112 QT_END_NAMESPACE
0113 
0114 #endif