<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt">I normally use MP4Box from GPAC to generate a sdp file. Now I have hinted <br>a mp4 file from a h264 video file and created a sdp file from it. Here is the sdp <br>file content:<br>----------------------<br>* File SDP content *<br><br>b=AS:136<br>a=x-copyright: MP4/3GP File hinted with GPAC 0.4.3-DEV (C)2000-2005 <br> <span>- <a target="_blank" href="http://gpac.sourceforge.net">http://gpac.sourceforge.net</a></span><br>c=IN IP4 0.0.0.0<br>m=video 1234 RTP/AVP 96<br>b=AS:136<br>a=rtpmap:96 H264/90000<br>a=control:trackID=65536<br>a=fmtp:96 profile-level-id=640028; packetization-mode=1; sprop-parameter-sets=Z2QAKKzOYLE5,aOlKOLA=<br>a=framesize:96 176-144<br><div>--------------------------<br><br>Now I tried to use mplayer to play it with the command of "mplayer sdp://test.sdp
-v".<br>It didn't work. The output message is as follows:<br>----------------------------<br>[hong@gx745-2 ~]$ mplayer sdp://foreman.sdp -v<br>MPlayer dev-SVN-r24045-4.1.1 (C) 2000-2007 MPlayer Team<br>CPU: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz (Family: 6, Model: 15, Stepping: 6)<br>CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1<br>Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2<br>get_path('codecs.conf') -> '/home/hong/.mplayer/codecs.conf'<br>Reading /home/hong/.mplayer/codecs.conf: Can't open '/home/hong/.mplayer/codecs.conf': <br>No such file or directory<br>Reading /usr/local/etc/mplayer/codecs.conf: Can't open '/usr/local/etc/mplayer/codecs.conf': <br>No such file or directory<br>Using built-in default codecs.conf.<br>Configuration: --enable-gui --enable-largefiles --enable-menu --enable-debug<br>--realcodecsdir=/usr/local/RealPlayer<br>CommandLine:
'sdp://foreman.sdp' '-v'<br>init_freetype<br>get_path('font/font.desc') -> '/home/hong/.mplayer/font/font.desc'<br>font: can't open file: /home/hong/.mplayer/font/font.desc<br>font: can't open file: /usr/local/share/mplayer/font/font.desc<br>Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay<br>get_path('fonts') -> '/home/hong/.mplayer/fonts'<br>Using nanosleep() timing<br>get_path('input.conf') -> '/home/hong/.mplayer/input.conf'<br>Can't open input config file /home/hong/.mplayer/input.conf: No such file or directory<br>Can't open input config file /usr/local/etc/mplayer/input.conf: No such file or directory<br>Falling back on default (hardcoded) input config<br>get_path('foreman.sdp.conf') -> '/home/hong/.mplayer/foreman.sdp.conf'<br><br>Playing sdp://foreman.sdp.<br>get_path('sub/') -> '/home/hong/.mplayer/sub/'<br>STREAM: [SDP] sdp://foreman.sdp<br>STREAM: Description: SDP stream descriptor<br>STREAM: Author: Ross
Finlayson<br>STREAM: Comment: Uses LIVE555 Streaming Media library.<br> file format detected.<br><br>vo: x11 uninit called but X11 not inited..<br><br>Exiting... (End of file)<br>--------------------------------------------------------------------<br><br>Then I tried to use mplayer to player your testMPEG1or2AudioVideo.sdp, and it worked well.<br>So I think it might be caused by wrong formats between your sdp and the MP4Box created one.<br>I am wondering if it is true or not. If yes, could you tell me how to generate your sdp file with what<br>kind of software? If no, could you give me a clue to fix it up?<br><br>Thank you for your help!<br><br></div></div><br>
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