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xiongziliang
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src/Record/MP4Reader.h
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141
src/Record/MP4Reader.h
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/*
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* MIT License
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*
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* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef SRC_MEDIAFILE_MEDIAREADER_H_
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#define SRC_MEDIAFILE_MEDIAREADER_H_
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#include "Common/MultiMediaSourceMuxer.h"
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#include "Extension/AAC.h"
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#ifdef ENABLE_MP4V2
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#include <mp4v2/mp4v2.h>
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#endif //ENABLE_MP4V2
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using namespace toolkit;
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namespace mediakit {
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class MP4Reader : public std::enable_shared_from_this<MP4Reader> ,public MediaSourceEvent{
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public:
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typedef std::shared_ptr<MP4Reader> Ptr;
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virtual ~MP4Reader();
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/**
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* 流化一个mp4文件，使之转换成RtspMediaSource和RtmpMediaSource
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* @param strVhost 虚拟主机
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* @param strApp 应用名
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* @param strId 流id
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* @param filePath 文件路径，如果为空则根据配置文件和上面参数自动生成，否则使用指定的文件
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*/
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MP4Reader(const string &strVhost,const string &strApp, const string &strId,const string &filePath = "");
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/**
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* 开始流化MP4文件，需要指出的是，MP4Reader对象一经过调用startReadMP4方法，它的强引用会自持有，
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* 意思是在文件流化结束之前或中断之前,MP4Reader对象是不会被销毁的(不管有没有被外部对象持有)
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*/
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void startReadMP4();
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/**
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* 设置时移偏移量
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* @param ui32Stamp 偏移量，单位毫秒
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* @return
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*/
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bool seekTo(MediaSource &sender,uint32_t ui32Stamp) override;
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/**
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* 关闭MP4Reader的流化进程，会触发该对象放弃自持有
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* @return
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*/
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bool close(MediaSource &sender,bool force) override;
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/**
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* 自动生成MP4Reader对象然后查找相关的MediaSource对象
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* @param strSchema 协议名
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* @param strVhost 虚拟主机
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* @param strApp 应用名
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* @param strId 流id
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* @param filePath 文件路径，如果为空则根据配置文件和上面参数自动生成，否则使用指定的文件
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* @param checkApp 是否检查app，防止服务器上文件被乱访问
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* @return MediaSource
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*/
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static MediaSource::Ptr onMakeMediaSource(const string &strSchema,
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const string &strVhost,
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const string &strApp,
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const string &strId,
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const string &filePath = "",
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bool checkApp = true);
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private:
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void onNoneReader(MediaSource &sender) override;
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#ifdef ENABLE_MP4V2
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void seek(uint32_t iSeekTime,bool bReStart = true);
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inline void setSeekTime(uint32_t iSeekTime);
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inline uint32_t getVideoCurrentTime();
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inline MP4SampleId getVideoSampleId(int iTimeInc = 0);
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inline MP4SampleId getAudioSampleId(int iTimeInc = 0);
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bool readSample(int iTimeInc, bool justSeekSyncFrame);
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inline bool readVideoSample(int iTimeInc,bool justSeekSyncFrame);
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inline bool readAudioSample(int iTimeInc,bool justSeekSyncFrame);
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inline void writeH264(uint8_t *pucData,int iLen,uint32_t dts,uint32_t pts);
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inline void writeAAC(uint8_t *pucData,int iLen,uint32_t uiStamp);
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private:
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MP4FileHandle _hMP4File = MP4_INVALID_FILE_HANDLE;
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MP4TrackId _video_trId = MP4_INVALID_TRACK_ID;
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uint32_t _video_ms = 0;
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uint32_t _video_num_samples = 0;
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uint32_t _video_sample_max_size = 0;
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uint32_t _video_width = 0;
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uint32_t _video_height = 0;
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uint32_t _video_framerate = 0;
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string _strPps;
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string _strSps;
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bool _bSyncSample = false;
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MP4TrackId _audio_trId = MP4_INVALID_TRACK_ID;
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uint32_t _audio_ms = 0;
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uint32_t _audio_num_samples = 0;
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uint32_t _audio_sample_max_size = 0;
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uint32_t _audio_sample_rate = 0;
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uint32_t _audio_num_channels = 0;
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string _strAacCfg;
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AACFrame _adts;
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int _iDuration = 0;
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MultiMediaSourceMuxer::Ptr _mediaMuxer;
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MP4SampleId _video_current = 0;
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MP4SampleId _audio_current = 0;
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std::shared_ptr<uint8_t> _pcVideoSample;
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int _iSeekTime = 0 ;
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Ticker _ticker;
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Ticker _alive;
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recursive_mutex _mtx;
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Timer::Ptr _timer;
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EventPoller::Ptr _poller;
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#endif //ENABLE_MP4V2
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};
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} /* namespace mediakit */
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#endif /* SRC_MEDIAFILE_MEDIAREADER_H_ */
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