[Live-devel] newbie: several questions about openrtsp

Sat May 18 01:26:04 PDT 2013

thanks for your response, my further comments interwoven with your below:

--------------------------------------------------
From: "Ross Finlayson" <finlayson at live555.com>
Sent: Saturday, May 18, 2013 6:22 AM
To: "LIVE555 Streaming Media - development & use" <live-devel at ns.live555.com
>
Subject: Re: [Live-devel] newbie: several questions about openrtsp

>> I'm running centos 5 server - command line only
>> hi all, newbie here, firstly to my surprise openRTSP actually worked
without too much hassle but did throw up a couple of problems.
>
> First, you should make sure that you have the latest version of the
"LIVE555 Streaming Media" code:
> http://www.live555.com/liveMedia/faq.html#latest-version

yeah that's the version I got,,
/usr/local/include/liveMedia/liveMedia_version.hh shows:
#define LIVEMEDIA_LIBRARY_VERSION_STRING        "2013.04.30"

>
>
>> This is the command that works with my axis 207MW network camera:
>> openRTSP -d 20 rtsp://<user:password>@<cam-ip-afddr>/mpeg4/media.amp
>> The 20-second video file created has no extension but I can get the file
to play by copying it to another location and adding .mp4 to the copy.
>
> The video file is a 'raw' (elementary stream) video file, and therefore
is *not* a 'mp4'-format file - so you're lucky that you were able to play
the file by adding '.mp4' to the filename :-)

ok, then I suppose the next job is to convert this raw file into a usable
file that players can recognize and play but so far I haven't found a
program designed to do this and I have tried a couple.  Can you recommend a
program or procedure that will overcome this step?

>
>> However if I use -4 in the command the program throws back "mdatFloating
point exception" and terminates.
>
> Unfortunately unless you can find a way for us to reproduce this
ourselves, you're going to track down this problem yourself.

well it's just a bog-standard install of centos 5 server and I've squeezed
google as much as I can on this error but to no avail. I also installed
loads of extras from here:
http://cumulusclips.org/docs/install-ffmpeg-x264-on-centos/
in the hope it would work but the error still persists. I did run the
openRTSP install again after putting these extras in.

>> I did the google on this but there are no clear answers. If I add -i the
program does create an avi but the resultant file crashes all my players.
>
> This, then is apparently a bug in these media player applications, so
you'd need to report this to the organizations that develop those
applications.

I can't see the media player creators ever agreeing to such a bug in their
players, multiple player all point to the video file being broken which
takes me back to my previous comment about an application specifically
designed to convert the openRTSP file into a usable format.

>>  Am I missing some component?
>
> No.
>
>
>> Also the audio file is silent. I don't know what kind of audio file rtsp
is generating because the filename has no extension
>
> The audio file (like the video file) will be a 'raw' (elementary stream)
file, so it's not surprising that media players can't handle it.  You can
deduce the type of audio from the file name (whatever it is; you didn't
say).

the audio file generated in called 'audio-MPEG4-GENERIC-2' and the video
file is named video-MP4V-ES-1. So far nothing I've found will bring sound
out of it.
Again thanks for your iniital response and any further light you can shed.
I've love to bring opeRTSP up to being a usable application if I can.

On Sat, May 18, 2013 at 6:22 AM, Ross Finlayson <finlayson at live555.com>wrote:

> I'm running centos 5 server - command line only
> hi all, newbie here, firstly to my surprise openRTSP actually worked
> without too much hassle but did throw up a couple of problems.
>
>
> First, you should make sure that you have the latest version of the
> "LIVE555 Streaming Media" code:
> http://www.live555.com/liveMedia/faq.html#latest-version
>
>
> This is the command that works with my axis 207MW network camera:
> openRTSP -d 20 rtsp://<user:password>@<cam-ip-afddr>/mpeg4/media.amp
> The 20-second video file created has no extension but I can get the file
> to play by copying it to another location and adding .mp4 to the copy.
>
>
> The video file is a 'raw' (elementary stream) video file, and therefore is
> *not* a 'mp4'-format file - so you're lucky that you were able to play the
> file by adding '.mp4' to the filename :-)
>
>
> However if I use -4 in the command the program throws back "mdatFloating
> point exception" and terminates.
>
>
> Unfortunately unless you can find a way for us to reproduce this
> ourselves, you're going to track down this problem yourself.
>
>
> I did the google on this but there are no clear answers. If I add -i the
> program does create an avi but the resultant file crashes all my players.
>
>
> This, then is apparently a bug in these media player applications, so
> you'd need to report this to the organizations that develop those
> applications.
>
>
>  Am I missing some component?
>
>
> No.
>
>
> Also the audio file is silent. I don't know what kind of audio file rtsp
> is generating because the filename has no extension
>
>
> The audio file (like the video file) will be a 'raw' (elementary stream)
> file, so it's not surprising that media players can't handle it.  You can
> deduce the type of audio from the file name (whatever it is; you didn't
> say).
>
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.live555.com/pipermail/live-devel/attachments/20130518/fda10571/attachment-0001.html>