ZLMediaKit/src/Rtp/PSEncoder.h
2020-10-24 23:33:13 +08:00

88 lines
2.1 KiB
C++

/*
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
* Use of this source code is governed by MIT license that can be found in the
* LICENSE file in the root of the source tree. All contributing project authors
* may be found in the AUTHORS file in the root of the source tree.
*/
#ifndef ZLMEDIAKIT_PSENCODER_H
#define ZLMEDIAKIT_PSENCODER_H
#if defined(ENABLE_RTPPROXY)
#include "mpeg-ps.h"
#include "Common/MediaSink.h"
#include "Common/Stamp.h"
#include "Extension/CommonRtp.h"
namespace mediakit{
//该类实现mpeg-ps容器格式的打包
class PSEncoder : public MediaSinkInterface {
public:
PSEncoder();
~PSEncoder() override;
/**
* 添加音视频轨道
*/
void addTrack(const Track::Ptr &track) override;
/**
* 重置音视频轨道
*/
void resetTracks() override;
/**
* 输入帧数据
*/
void inputFrame(const Frame::Ptr &frame) override;
protected:
/**
* 输出mpeg-ps的回调函数
* @param stamp 时间戳,毫秒
* @param packet 数据指针
* @param bytes 数据长度
*/
virtual void onPS(uint32_t stamp, void *packet, size_t bytes) = 0;
private:
void init();
//音视频时间戳同步用
void stampSync();
private:
struct track_info {
int track_id = -1;
Stamp stamp;
};
private:
uint32_t _timestamp = 0;
BufferRaw::Ptr _buffer;
List<Frame::Ptr> _frameCached;
std::shared_ptr<struct ps_muxer_t> _muxer;
unordered_map<int, track_info> _codec_to_trackid;
};
class PSEncoderImp : public PSEncoder{
public:
PSEncoderImp(uint32_t ssrc, uint8_t payload_type = 96);
~PSEncoderImp() override;
protected:
//rtp打包后回调
virtual void onRTP(Buffer::Ptr rtp) = 0;
protected:
void onPS(uint32_t stamp, void *packet, size_t bytes) override;
private:
std::shared_ptr<CommonRtpEncoder> _rtp_encoder;
};
}//namespace mediakit
#endif //ENABLE_RTPPROXY
#endif //ZLMEDIAKIT_PSENCODER_H