[gst-devel] Checking capabilities of GStreamer

[Steve Ricketts]

I'm writing in C# using MonoDevelop and Mono.  What would be the best approach to take in order to use GStreamer from C#... keeping in mind I want to do the things listed below.  Unfortunately, I'm new to Linux and gstreamer.  I know there is a C# binding (gstreamer-sharp) but don't know if it will do the GSM conversion.   Use the gstreamer-sharp stuff, call a c module, something else?   Heck, I'd even pay someone to develop this!  

Thanks for any direction you can provide,

sr


From: Tiago Katcipis 
Sent: Monday, April 19, 2010 7:58 AM
To: Discussion of the development of GStreamer 
Subject: Re: [gst-devel] Checking capabilities of GStreamer


Hi,


On Sun, Apr 18, 2010 at 5:06 PM, Steve Ricketts <velocedge at hotmail.com> wrote:

  I'm developing an application in C#/Mono in which I need to use both
  audio and video bi-directionally over a sockets connection on Linux.  I
  am asking if GStreamer can do the following tasks:

  Audio

  1. Take GSM 6.10 audio from a byte array and play it on the speaker
  2. Convert a PCM byte array to GSM 6.10


For inserting/getting byte arrays of data on a gstreamer pipeline you can use appsink and appsrc:

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-data-spoof.html

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-plugin-app.html

gstreamer has GSM suppport:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-plugin-gsm.html

but i dont know if it is 6.10. 


  Video

  1. Capture video from a webcam to byte array
  2. Convert captured byte array to compressed format (preferably MS
  MPEG42 to integrate with existing app... could be other format)



for video in linux you can use:

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-plugin-video4linux.html

and to extract the data as byte arrays you already know :-).
 
  The audio functions are by far the most important right now.  If
  GStreamer can do the above audio functions, what do I need to download
  for openSUSE 11.2 to get the latest version?



I'm not very used with openSUSE, on Ubuntu i usually install almost all gstreamer plugins that comes with my distro :-). But installing gstreamer, gstreamer-base, gstreamer-good, gstreamer-bad and gstreamer-ffmpeg (I believe that the MPEG encoding will be here) should do it for you. 
 
  Thanks for your advice,

  Steve




best regards,
Katcipis
 

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