mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
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85 lines
2.9 KiB
C++
85 lines
2.9 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/xiongziliang/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 HLSRECORDER_H
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#define HLSRECORDER_H
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#include "HlsMakerImp.h"
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#include "TsMuxer.h"
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namespace mediakit {
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class HlsRecorder : public MediaSourceEventInterceptor, public TsMuxer, public std::enable_shared_from_this<HlsRecorder> {
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public:
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typedef std::shared_ptr<HlsRecorder> Ptr;
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HlsRecorder(const string &m3u8_file, const string ¶ms){
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GET_CONFIG(uint32_t, hlsNum, Hls::kSegmentNum);
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GET_CONFIG(uint32_t, hlsBufSize, Hls::kFileBufSize);
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GET_CONFIG(uint32_t, hlsDuration, Hls::kSegmentDuration);
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_hls = std::make_shared<HlsMakerImp>(m3u8_file, params, hlsBufSize, hlsDuration, hlsNum);
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//清空上次的残余文件
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_hls->clearCache();
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}
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~HlsRecorder(){}
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void setMediaSource(const string &vhost, const string &app, const string &stream_id) {
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_hls->setMediaSource(vhost, app, stream_id);
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}
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void setListener(const std::weak_ptr<MediaSourceEvent> &listener) {
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_listener = listener;
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_hls->getMediaSource()->setListener(shared_from_this());
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//先注册媒体流，后续可以按需生成
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_hls->getMediaSource()->registHls(false);
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}
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int readerCount() {
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return _hls->getMediaSource()->readerCount();
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}
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void onReaderChanged(MediaSource &sender, int size) override {
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//hls保留切片个数为0时代表为hls录制(不删除切片)，那么不管有无观看者都一直生成hls
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_enabled = _hls->isLive() ? size : true;
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if (!size && _hls->isLive()) {
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//hls直播时，如果无人观看就删除视频缓存，目的是为了防止视频跳跃
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_clear_cache = true;
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}
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MediaSourceEventInterceptor::onReaderChanged(sender, size);
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}
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bool isEnabled() {
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//缓存尚未清空时，还允许触发inputFrame函数，以便及时清空缓存
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return _clear_cache ? true : _enabled;
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}
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void inputFrame(const Frame::Ptr &frame) override{
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if (_clear_cache) {
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_clear_cache = false;
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_hls->clearCache();
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}
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if (_enabled) {
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TsMuxer::inputFrame(frame);
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}
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}
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private:
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void onTs(const void *packet, int bytes, uint32_t timestamp, bool is_idr_fast_packet) override {
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_hls->inputData((char *) packet, bytes, timestamp, is_idr_fast_packet);
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}
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private:
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//默认不生成hls文件，有播放器时再生成
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bool _enabled = false;
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bool _clear_cache = false;
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std::shared_ptr<HlsMakerImp> _hls;
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};
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}//namespace mediakit
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#endif //HLSRECORDER_H
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