[Libav-user] mpeg-ts, rtp and output-example

[david.weber at l-3com.com]

I am attempting to write a mpeg-ts application.  Step one would be
getting an existing application working, so I can dissect the code.

 

So, I first took output-example (and the latest release), and modified
the av_guess_format to:

 

fmt = av_guess_format("mpegts", NULL, NULL);

 

 

I also modify the STREAM_DURATION to be very long (500000) or so.  I
know this will be an issue, but I'm trying to get it working.

 

 

 

I compile and run it, wishing to write to the network, and then read it
locally using ffplay/vlc.

 

 

[root at sl6 src]# ./output-example  rtp://192.168.1.2:9778

Output #0, mpegts, to 'rtp://192.168.1.2:9778':

    Stream #0.0: Video: mpeg2video, yuv420p, 352x288, q=2-31, 400 kb/s,
90k tbn, 25 tbc

    Stream #0.1: Audio: mp2, 44100 Hz, 2 channels, s16, 64 kb/s

[mpegts @ 0x8324020] muxrate VBR, pcr every 2 pkts, sdt every 200,
pat/pmt every 40 pkts

 

 

 

I then try VLC, where I play network stream "rtp://192.168.1.2:9778"
(this is on the same machine as the sender).

 

No output.   Under messages, it says "rtp warning: too many RTP
sessions".

 

 

So, I check wireshark, and when VLC is not running, I am getting icmp
port not open messages, and those go away when I start VLC.

 

 

Any thoughts?  Something not quite set up right in the TS options?

 

Thanks,

 

 

 

 

Here is my version info:

 

[root at sl6 bin]# ./ffplay

ffplay version 0.7.2, Copyright (c) 2003-2011 the Libav developers

  built on Dec  5 2011 15:47:53 with gcc 4.4.4 20100726 (Red Hat
4.4.4-13)

  configuration: --disable-yasm --prefix=../libav --enable-shared

  libavutil    51.  7. 0 / 51.  7. 0

  libavcodec   53.  5. 0 / 53.  5. 0

  libavformat  53.  2. 0 / 53.  2. 0

  libavdevice  53.  0. 0 / 53.  0. 0

  libavfilter   2.  4. 0 /  2.  4. 0

  libswscale    2.  0. 0 /  2.  0. 0

Simple media player

usage: ffplay [options] input_file

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