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添加全局时间戳覆盖逻辑
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@ -18,7 +18,6 @@ snap=%s -i %s -y -f mjpeg -t 0.001 %s
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#可以为相对(相对于本可执行程序目录)或绝对路径
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log=./ffmpeg/ffmpeg.log
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[general]
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#是否启用虚拟主机
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enableVhost=0
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@ -48,6 +47,11 @@ publishToMP4=0
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#合并写缓存大小(单位毫秒),合并写指服务器缓存一定的数据后才会一次性写入socket,这样能提高性能,但是会提高延时
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#开启后会同时关闭TCP_NODELAY并开启MSG_MORE
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mergeWriteMS=0
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#全局的时间戳覆盖开关,在转协议时,对frame进行时间戳覆盖
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#该开关对rtsp/rtmp/rtp推流、rtsp/rtmp/hls拉流代理转协议时生效
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#会直接影响rtsp/rtmp/hls/mp4/flv等协议的时间戳
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#同协议情况下不影响(例如rtsp/rtmp推流,那么播放rtsp/rtmp时不会影响时间戳)
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modifyStamp=0
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[hls]
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#hls写文件的buf大小,调整参数可以提高文件io性能
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@ -298,8 +298,69 @@ void MultiMediaSourceMuxer::resetTracks() {
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_muxer->resetTracks();
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}
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//该类实现frame级别的时间戳覆盖
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class FrameModifyStamp : public Frame{
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public:
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typedef std::shared_ptr<FrameModifyStamp> Ptr;
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FrameModifyStamp(const Frame::Ptr &frame, Stamp &stamp){
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_frame = frame;
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//覆盖时间戳
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stamp.revise(frame->dts(), frame->pts(), _dts, _pts, true);
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}
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~FrameModifyStamp() override {}
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uint32_t dts() const override{
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return _dts;
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}
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uint32_t pts() const override{
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return _pts;
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}
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uint32_t prefixSize() const override {
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return _frame->prefixSize();
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}
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bool keyFrame() const override {
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return _frame->keyFrame();
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}
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bool configFrame() const override {
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return _frame->configFrame();
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}
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bool cacheAble() const override {
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return _frame->cacheAble();
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}
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char *data() const override {
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return _frame->data();
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}
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uint32_t size() const override {
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return _frame->size();
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}
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CodecId getCodecId() const override {
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return _frame->getCodecId();
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}
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private:
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Frame::Ptr _frame;
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int64_t _dts;
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int64_t _pts;
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};
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void MultiMediaSourceMuxer::inputFrame(const Frame::Ptr &frame) {
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_muxer->inputFrame(frame);
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GET_CONFIG(bool,modify_stamp,General::kModifyStamp);
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if(!modify_stamp){
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//未开启时间戳覆盖
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_muxer->inputFrame(frame);
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}else{
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//开启了时间戳覆盖
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FrameModifyStamp::Ptr new_frame = std::make_shared<FrameModifyStamp>(frame,_stamp[frame->getTrackType()]);
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//输入时间戳覆盖后的帧
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_muxer->inputFrame(new_frame);
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}
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}
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bool MultiMediaSourceMuxer::isEnabled(){
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@ -178,6 +178,7 @@ public:
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private:
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MultiMuxerPrivate::Ptr _muxer;
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std::weak_ptr<MediaSourceEvent> _listener;
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Stamp _stamp[2];
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};
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}//namespace mediakit
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@ -67,6 +67,7 @@ const string kPublishToRtxp = GENERAL_FIELD"publishToRtxp";
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const string kPublishToHls = GENERAL_FIELD"publishToHls";
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const string kPublishToMP4 = GENERAL_FIELD"publishToMP4";
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const string kMergeWriteMS = GENERAL_FIELD"mergeWriteMS";
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const string kModifyStamp = GENERAL_FIELD"modifyStamp";
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onceToken token([](){
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mINI::Instance()[kFlowThreshold] = 1024;
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@ -79,6 +80,7 @@ onceToken token([](){
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mINI::Instance()[kPublishToHls] = 1;
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mINI::Instance()[kPublishToMP4] = 0;
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mINI::Instance()[kMergeWriteMS] = 0;
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mINI::Instance()[kModifyStamp] = 0;
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},nullptr);
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}//namespace General
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@ -174,6 +174,8 @@ extern const string kPublishToMP4 ;
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//合并写缓存大小(单位毫秒),合并写指服务器缓存一定的数据后才会一次性写入socket,这样能提高性能,但是会提高延时
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//开启后会同时关闭TCP_NODELAY并开启MSG_MORE
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extern const string kMergeWriteMS ;
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//全局的时间戳覆盖开关,在转协议时,对frame进行时间戳覆盖
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extern const string kModifyStamp;
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}//namespace General
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@ -217,6 +219,7 @@ extern const string kDirectProxy;
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////////////RTMP服务器配置///////////
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namespace Rtmp {
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//rtmp推流时间戳覆盖开关
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extern const string kModifyStamp;
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//握手超时时间,默认15秒
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extern const string kHandshakeSecond;
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