[Live-devel] 回覆: Live video and audio streaming using one RTSPServer

Wed Nov 4 05:49:54 PST 2015

Hi Daniel,

First, you should ensure your time between audio and video are sync.

Then, just put struct timval into fPresentation time(need sec and usec).

Second, ensure your audio duration time is ok, you could refer ATDS source code.

I hope this may help you. Thanks?.

regards, eric, 11/04

________________________________
從: live-devel <live-devel-bounces at ns.live555.com> 代表 Daniel Yacouboff <danielya at essence-grp.com>
寄件日期: 2015年11月4日 下午 06:56
至: live-devel at lists.live555.com
主旨: [Live-devel] Live video and audio streaming using one RTSPServer

Hello there,
I’ve been working on your library for a while now, in order to implement a RTSP server, streaming live audio and video.
The audio and video packets are received via TCP from another service, each type of packet (audio\video) to another socket.
What I did was creating a new sub-classes of MediaSubsession, one for PCM audio and one for H264 video, and for each one created a new framed source, similar to ByteStreamFileSource, where in their doReadFromFile() I call recv() to the relevant socket instead of fread().
In my main, I just open the TCP sockets, create an RTSP server and add the two subsessions to it.

It works fine when I play video alone, or audio alone, but when I combine them the video usually stuck after a short while (~30 seconds) and the audio keeps playing ok.
In addition, during the time both of them played ok, they are not synched.

What am I doing wrong? I’ve read a lot about it and it seems my presentation times are not ok, but how can I calculate them properly?
Please advise, I’ve been working on this forever, and I’m sure it’ll be useful for others as well.

Thanks.

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