ffmpeg -max_delay5000-reorder_queue_size16384-protocol_whitelist file,crypto,udp,rtp -re -i input.sdp -vcodeccopy-acodec aac -f flv rtmp://127.0.0.1:1935/live/myStream 我得到了播放一些vidoe的奇怪视频,然后陷入困境,然后播放一些音频,返回视频等,它永远不会一起播放视频和音频。 顺便说一句,当我...
格式： a=filesize:文件大小 （单位：Byte）a字段可携带setup、connection作为TCP连接协商参数。 a=setup：TCP连接方式（表示本SDP发送者在建立RTP over TCP连接时是主动还是被动发起TCP连接，“active”为主动，“passive”为被动）a字段可携带SVC参数，用于视频传输时的分辨率或者帧频控制。a=svcspace：空域编码方式 ...
只需要敲一条命令后就可以实现发流，并且支持多种网络协议（UDP/RTP/RTSP/RTMP）。
(for the sake of simplicity located in the same page) by passing through the RTP/RTCP gatewaying functionality. This should as a result make it easier for you to understand how a NoSIP caller and a NoSIP callee would need to be implemented. The barebone SDPs generated/processed as a ...
Figure 3-8.An example of RTSP in action with the video and audio data being delivered over a separate UDP-based RTP stream. Other Options for Data Delivery In certain scenarios, the best-effort, dynamic port methods ofUDP-basedRTP, as described previously, are not suitable. Some environments...
对于这个音频它有一个参数a=rtpmap,就是我使用的这个音频的编码方式是PCMU采样率是8000,这里大家了解一下就好。 最重要的是最后两行,它检测到有两种Candidate就是候选的路: 第一条是UDP的,IP 是 10.0.1.1端口是 8998,类型是host; 第二种也是UDP的,IP是192.0.2.3端口是45664,类型是穿越NAT的映射地址, ...
rtp://{Streaming_Server_IP}:{Port} udp://{Streaming_Server_IP}:{Port} Nevertheless, when more control over the parameters of the stream are required, an SDP description file may be used instead. The SDP file can be located on the HMP or on a remote server. To include an SDP file ...
格式: a=filesize:文件大小 (单位:Byte) a字段可携带setup、connection作为TCP连接协商参数。 a=setup:TCP连接方式(表示本SDP发送者在建立RTP over TCP连接时是主动还是被动发起TCP连接,“active”为主动,“passive”为被动) a字段可携带SVC参数,用于视频传输时的分辨率或者帧频控制。a=svcspace:空域编码方式 【...
//打开err = avformat_open_input(&ic,is->filename,is->iformat, &format_opts);//探测err =avformat_find_stream_info(ic, opts);//查找流for(i =0; i < ic->nb_streams; i++) { AVStream*st = ic->streams[i];enumAVMediaType type = st->codec->codec_type; ...
o= This line identifies the source IP for the stream m= The combination of m=video and smpte291 (in the a=rtpmap: line) identifies this file as an ancillary data file. 20000 is the port of the stream. This line must occur before the a lines. c= identifies the destination IP addre...