[Asterisk-video] Play and Record videos in Asterisk (ox converter)

[Sharan Saxena]

Hi Jesus,
           Thanks for your directions. From your email and my understanding
of the code of asterisk, I think that asterisk plays the audio and video
frames separately. Please correct me if I am wrong.

I was able to run the ffasterisk command, but I got exceptions and buffer
underflow/overflow with the audio/video files I tried. 

It would be helpful if you can guide me to a working .avi file, from which
you extract the audio and video frames, and also comment on the correctness
of my steps outlined below. My approach should be as follows then:

	ffasterisk -i in.avi -o in.wav --audio 				;
Floating point exception
	ffasterisk -i in.avi -o out.h263 --video
; buffer underflow, though file created, but didn't play in VLC media player
	
	sox in.wav -r 8000 -c 1 -s -w out.wav resample -ql  		;
was not able to find "ox"

In extensions.conf
	exten => 600,n,Playback(out)
; and hope that it will play
	

Thanks for your help.
Regards
Sharan


-------------------------------------------------------------------------
Message: 4
Date: Wed, 4 Jun 2008 17:34:15 +0200
From: " Jes?s Gumiel " <jesus.gumiel at gmail.com>
Subject: Re: [Asterisk-video] Play and Record videos in Asterisk

You must have two files, one file .h263 with the video and other file
.gsm or .alaw with the audio.

Normally your  converted files don?t work in Asterisk, you must
recodificate them.

ox in.wav -r 8000 -c 1 -s -w out.wav resample -ql  ; To convert the audio

ffasterisk -i in.3gp -o out.h263 --video                  ; To convert the
video

Put the two files with the same name (in.h263 and in.wav). And this should
work.


2008/6/4 Sharan Saxena <ssaxena at devfoundry.com>:
> Dear List Members,
>                  I am trying to play videos in Asterisk. I understand that
> Playback() and Background() functions can play videos in .h263 and .3gp
> format. In my extensions.conf, I put a call like:
>        exten=> 600,n,Playback(testvideo)           ;testvideo.h263 is a
> file which which plays in VLC media player
>
> I get an error saying "Unable to open testvideo format 0x4 (ulaw)".
>
> I have made changes to my sip.conf,
>        videosupport = yes
>        allow=ulaw
>        allow=alaw
>        allow=h261
>        allow=h263
>        allow=h263p
>        allow=h264
>
> I tried recording a video using Asterisk Record() function, and then tried
> playing it using Playback(), but was unable to succeed.
>
> Though my files get played in VLC media player, I am not sure whether they
> are the right set for Asterisk.
>
> I would request members on the list to kindly guide me to the correct
> steps/examples/videos which play in Asterisk, so as to enable me to play
> videos in Asterisk.
>
> Thanks for your help,
> Best Regards
> Sharan
>
>
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