[Asterisk-video] AVTF - What's going on?

[Jeffrey C. Ollie]

On Fri, 2006-05-26 at 13:51 +0200, jordan territorio wrote:
>
> Here are the results of the command i read in mailing list, when i
> launch it on my computer :
>  
> gst-launch-0.10 filesrc
> location=/root/test1800.mov ! qtdemux name=demux ! ffdec_h263 !
> videoscale ! video/x-raw-yuv,width=352,height=288 ! ffenc_h263
> rtp-payload-size=512 ! rtph263pay ! asteriskh263 ! filesink
> location=avout.h263 demux. ! queue ! ffdec_adpcm_ima_qt ! audioconvert !
> audioresample ! audio/x-raw-int,rate=8000,channels=1 ! wavenc ! filesink
> location=avout.wav
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> 
> The program seems to be blocked at this point and if i do a CRTL+C :
>  
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> Caught interrupt -- Pausing pipeline.
> Pipeline paused.
> WARNING: Element "pipeline0" warns: pipeline interrupted


Does your file actually contain H.263 video and ADPCM audio?  The
pipeline shown above is specifically for converting H.263 video and
ADPCM audio.  Here's an alternate pipeline that uses the GStreamer
decodebin element:

gst-launch filesrc location=AstriDevCon_Europe_2006.mov ! decodebin name=decode ! videoscale ! video/x-raw-yuv,width=352,height=288 ! ffenc_h263 rtp-payload-size=512 ! rtph263pay ! asteriskh263 ! filesink location=avout.h263 decode. ! queue ! audioconvert ! audioresample ! audio/x-raw-int,rate=8000,channels=1 ! wavenc ! filesink location=avout.wav

The GStreamer decodebin element doesn't actually decode anything itself,
it uses other GStreamer elements to detect the type of data being
offered to it and convert it to a form that can be used by other
GStreamer elements.

Jeff

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