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

[Jeffrey C. Ollie]

> >> - GStreamer & Asterisk:
> > That is really cool. I'll look at it. Does it divide the video into one 
> > audio and one video file?
> 
> Yes - you invoke it with a command line like:
> 
> gst-launch filesrc location=avin.ogg ! oggdemux name=demux ! theoradec ! 
> ffmpegcolorspace ! videoscale ! video/x-raw-yuv, width=352, height=288 ! 
> ffenc_h263 rtp-payload-size=512 ! rtph263enc ! asteriskh263 ! filesink 
> location=avout.h263 demux. ! queue ! vorbisdec ! audioconvert ! 
> audio/x-raw-int ! audioconvert ! wavenc ! filesink location=soxin.wav && 
> sox soxin.wav -r 8000 -c 1 -s -w avout.wav resample -ql

The separate invocation of sox is not necessary, GStreamer can handle
all of the conversion tasks:

gst-launch filesrc location=AstriDevCon_Europe_2006.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

My example uses a input file that's been encoded with different
audio/video codecs but the same principle applies.  I believe that there
is an error in the original GStreamer invocation - "rtp263enc" should be
"rtph263pay".  GStreamer 0.10 is required!

Jeff

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