[streaming] How can I use my own SDP file in Darwin Server?

[Rémi Denis-Courmont]

This is not a Darwin streaming mailing list.

----- Message d'origine -----
> I am new to stream media development, and I hava a problem confused me so long.
> I need RTP packets to do some analysis, so I use DarwinServer 5.5.5 to play a
> mp4 file on my computer, and use VLC on another computer to open a rtsp address
> like rtsp://192.168.1.65/sample_h264_1mbit.mp4, the VLC can paly the file well. 
> I find a SDP file in directory C:\Program Files\Darwin Streaming Server\Movies,
> it is like this: v=0 o=QTSS_Play_List 3751694215 3751712641 IN IP4
> 169.254.25.142 s=C:\Program Files\Darwin Streaming
> Server\Playlists\untitled\unti@ c=IN IP4 127.0.0.1 b=AS:2097279
> t=0 0
> a=x-broadcastcontrol:RTSP
> a=isma-compliance:2,2.0,2
> m=video 0 RTP/AVP 96
> b=AS:2097151
> a=rtpmap:96 H264/90000
> a=control:trackID=1
> a=cliprect:0,0,480,380
> a=framesize:96 380-480
> a=fmtp:96
> packetization-mode=1;profile-level-id=4D401E;sprop-parameter-sets=J01AHqkYMB73oA==,KM4C+IA=
> a=mpeg4-esid:201 m=audio 0 RTP/AVP 97
> b=AS:127
> a=rtpmap:97 mpeg4-generic/48000/2
> a=control:trackID=2
> a=fmtp:97
> profile-level-id=15;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1190
> a=mpeg4-esid:101
> 
> As I need audio data encapsulated with LATM format, so i change the line
> "a=rtpmap:97 mpeg4-generic/48000/2" to "a=rtpmap:97 mp4a-latm/48000/2" and save
> it. But I find that when I restart the server, the file changes to its former
> content.! It seems that Darwin Server would generate a SDP file in /movies/
> directory, and overwrite it if there was a SDP file in this directory with the
> same name. When stop the server, the SDP file will be deleted in few seconds.
> 
> SO, what should I do to encapsulate the audio data in this mp4 file with LATM
> format in RTP packets?
> 
> Thanks a lot. 
> 
> 
> 
> 
> 

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