[Live-devel] stream m4e

[York Sun]

Brad,

I should be clear about the color. It is not random color. It is all
green, with a little bit shape here and there under vlc. mplayer shows
most black.

I think it is something related to multicast. Just found an old post in
archive
http://lists.live555.com/pipermail/live-devel/2008-August/009323.html.
Ross seems to believe the missing key frame causes the green.

I tried live555MediaServer and it streams OK.

Here is what I am trying to do. I want to capture rtsp steams from
multiple IP cameras (MPEG4 or H.264), save the stream to the hard drive,
and also re-stream the video to unicast and/or multicast addresses. I am
hoping I can use the openRTSP and testMPEG4VideoStreamer as template and
put them together. Now it seems to be a little bit difficult for
multicasting. Please advise if it is even possible, or someone already
did it.

Thanks,

York


On Tue, 2009-03-31 at 15:49 -0400, Brad Bitterman wrote:
> Not sure what would cause a color issue like what you're
> describing.... Live555 doesn't modify the frame data in any way so
> chroma info should not be modified.
> 
> 
> - Brad
> 
> On Mar 30, 2009, at 10:34 PM, sun york-R58495 wrote:
> 
> > Thanks for the hint. vlc can play the file with .m4v extension. That
> > at least proves the openRTSP works OK. I still don't know why
> > testMPEG4VideoStreamer sends the vague picture with wrong color. Is
> > it resolution issue? The sample para.m4e file streams OK. It has low
> > resolution, though.
> > 
> > York
> > 
> > 
> > 
> > -----Original Message-----
> > From: live-devel-bounces at ns.live555.com on behalf of Brad Bitterman
> > Sent: Mon 3/30/2009 19:51
> > To: LIVE555 Streaming Media - development & use
> > Subject: Re: [Live-devel] stream m4e
> > 
> > You can use ffmpeg to wrap the file into a mp4 container. I think
> > the 
> > command is just the following:
> > 
> > ./ffmpeg -i video-MP4V-ES-1 out.mp4
> > 
> > You should then be able to open the file with VLC. Also, ffmpeg
> > will 
> > usually tell you if there are problems with the bitstream. I have
> > also 
> > just renamed the file with a .m4v extension and VLC can play it 
> > directly without any container.
> > 
> > I have used openRTSP in the past to capture a stream from an Axis 
> > camera and it worked fine. You might also want to turn the debug
> > log 
> > level up in vlc and see if it reports any errors.
> > 
> > - Brad
> > 
> > On Mar 30, 2009, at 5:58 PM, York Sun wrote:
> > 
> > > I am new to this list. Tried to search the archive but didn't find
> > a
> > > good way.
> > >
> > > In short, I have difficulty to stream m4e by
> > testMPEG4VideoStreamer. 
> > > The
> > > m4e comes from openRTSP (renamed from video-MP4V-ES-1), captured 
> > > from my
> > > Axis camera, 640x480. I can see the picture with wrong color. vlc
> > and
> > > mplayer display different wrong color. I don't know which part is 
> > > wrong.
> > >
> > > More info, if adding -i or -4 to openRTSP, the avi or mp4 file can
> > be
> > > correctly played by vlc and mplayer. I don't know how to verify
> > the 
> > > m4e
> > > file. I can stream the sample para.m4e file. Only the very
> > beginning
> > > shows wrong color.
> > >
> > > Any help is appreciated.
> > >
> > > York
> > >
> > > _______________________________________________
> > > live-devel mailing list
> > > live-devel at lists.live555.com
> > > http://lists.live555.com/mailman/listinfo/live-devel
> > 
> > _______________________________________________
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> > live-devel at lists.live555.com
> > http://lists.live555.com/mailman/listinfo/live-devel
> > 
> > 
> > 
> > 
> > 
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> 
> 
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