mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-26 12:37:09 +08:00
86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef ZLMEDIAKIT_MP4DEMUXER_H
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#define ZLMEDIAKIT_MP4DEMUXER_H
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#ifdef ENABLE_MP4
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#include "MP4.h"
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#include "Extension/Track.h"
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#include "Util/ResourcePool.h"
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namespace mediakit {
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class MP4Demuxer : public TrackSource {
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public:
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typedef std::shared_ptr<MP4Demuxer> Ptr;
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/**
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* 创建mp4解复用器
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*/
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MP4Demuxer();
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~MP4Demuxer() override;
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/**
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* 打开文件
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* @param file mp4文件路径
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*/
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void openMP4(const string &file);
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/**
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* @brief 关闭 mp4 文件
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*/
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void closeMP4();
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/**
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* 移动时间轴至某处
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* @param stamp_ms 预期的时间轴位置，单位毫秒
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* @return 时间轴位置
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*/
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int64_t seekTo(int64_t stamp_ms);
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/**
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* 读取一帧数据
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* @param keyFrame 是否为关键帧
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* @param eof 是否文件读取完毕
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* @return 帧数据,可能为空
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*/
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Frame::Ptr readFrame(bool &keyFrame, bool &eof);
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/**
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* 获取所有Track信息
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* @param trackReady 是否要求track为就绪状态
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* @return 所有Track
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*/
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vector<Track::Ptr> getTracks(bool trackReady) const override;
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/**
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* 获取文件长度
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* @return 文件长度，单位毫秒
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*/
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uint64_t getDurationMS() const;
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private:
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int getAllTracks();
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void onVideoTrack(uint32_t track_id, uint8_t object, int width, int height, const void *extra, size_t bytes);
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void onAudioTrack(uint32_t track_id, uint8_t object, int channel_count, int bit_per_sample, int sample_rate, const void *extra, size_t bytes);
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Frame::Ptr makeFrame(uint32_t track_id, const Buffer::Ptr &buf, int64_t pts, int64_t dts);
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private:
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MP4FileDisk::Ptr _mp4_file;
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MP4FileDisk::Reader _mov_reader;
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uint64_t _duration_ms = 0;
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map<int, Track::Ptr> _track_to_codec;
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ResourcePool<BufferRaw> _buffer_pool;
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};
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}//namespace mediakit
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#endif//ENABLE_MP4
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#endif //ZLMEDIAKIT_MP4DEMUXER_H
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