[FFmpeg-user] rtp streaming - ok with ffmpeg 0.8.3 - error with ffmpeg git version N-32748-g358d837

[xfly]

Hi,
I want to stream the video captured from my camera via rtp.
I'm using this simple command:
$ffmpeg -f video4linux2 -s 640x480 -r 25 -i /dev/video0  -f rtp -muxdelay 0
-vcodec mpeg2video -sameq rtp://$DEFAULT_HOST:$VIDEO_PORT

It works with ffmpeg version 0.8.3. Details:
ffmpeg version 0.8.3, Copyright (c) 2000-2011 the FFmpeg developers
  built on Sep 21 2011 11:47:11 with gcc 4.4.3
  configuration: --prefix=/usr --enable-shared --enable-pthreads
--enable-version3 --enable-libtheora --enable-libdc1394 --enable-libvorbis
--enable-libschroedinger --enable-zlib --enable-bzlib --enable-vdpau
--enable-libdirac
  libavutil    51.  9. 1 / 51.  9. 1
  libavcodec   53.  7. 0 / 53.  7. 0
  libavformat  53.  4. 0 / 53.  4. 0
  libavdevice  53.  1. 1 / 53.  1. 1
  libavfilter   2. 23. 0 /  2. 23. 0
  libswscale    2.  0. 0 /  2.  0. 0


It does NOT work with ffmpeg version N-32748-g358d837 pulled down TODAY from
git repo. Details:
ffmpeg version N-32748-g358d837, Copyright (c) 2000-2011 the FFmpeg
developers
  built on Sep 21 2011 11:33:34 with gcc 4.4.3
  configuration: --prefix=/usr --enable-shared --enable-pthreads
--enable-version3 --enable-libtheora --enable-libdc1394 --enable-libvorbis
--enable-libschroedinger --enable-zlib --enable-bzlib --enable-vdpau
--enable-libdirac
  libavutil    51. 16. 1 / 51. 16. 1
  libavcodec   53. 16. 0 / 53. 16. 0
  libavformat  53. 12. 0 / 53. 12. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 43. 2 /  2. 43. 2
  libswscale    2.  1. 0 /  2.  1. 0


This what I get from ffmpeg version N-32748-g358d837 when I run the command:
$ffmpeg -f video4linux2 -s 640x480 -r 25 -i /dev/video0  -f rtp -muxdelay 0
-vcodec mpeg2video -sameq rtp://$DEFAULT_HOST:$VIDEO_PORT
Output:
ffmpeg version N-32748-g358d837, Copyright (c) 2000-2011 the FFmpeg
developers
  built on Sep 21 2011 11:33:34 with gcc 4.4.3
  configuration: --prefix=/usr --enable-shared --enable-pthreads
--enable-version3 --enable-libtheora --enable-libdc1394 --enable-libvorbis
--enable-libschroedinger --enable-zlib --enable-bzlib --enable-vdpau
--enable-libdirac
  libavutil    51. 16. 1 / 51. 16. 1
  libavcodec   53. 16. 0 / 53. 16. 0
  libavformat  53. 12. 0 / 53. 12. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 43. 2 /  2. 43. 2
  libswscale    2.  1. 0 /  2.  1. 0
[video4linux2 @ 0x97533a0] The driver changed the time per frame from 1/25
to 1/30
[video4linux2 @ 0x97533a0] Estimating duration from bitrate, this may be
inaccurate
Input #0, video4linux2, from '/dev/video0':
  Duration: N/A, start: 1316603488.369544, bitrate: 147456 kb/s
    Stream #0.0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480,
147456 kb/s, 30 tbr, 1000k tbn, 30 tbc
Output #0, rtp, to 'rtp://127.0.0.1:5000':
Output file #0 does not contain any stream

I also tried the following commands obtaining the same result "Output file
#0 does not contain any stream"
$ ffmpeg -f video4linux2 -s 640x480 -r 25 -i /dev/video0 -f rtp -vcodec
mpegts -vframes 25 rtp://127.0.0.1:5000
$ ffmpeg -f video4linux2 -s 640x480 -r 25 -i /dev/video0 -f mpegts -f rtp
rtp://127.0.0.1:5000

Is there any problem with the syntax of the command in the new ffmpeg
version? Did the syntax changed for rtp streaming?
Thank you in advance for your help.

Xfly