[h323plus] How to add a generic Video Capability?
Simon Horne
s.horne at packetizer.com
Thu Jan 17 17:32:47 EST 2008
The MPEG4 is defined in H.245 Annex E and it is a generic codec
Follow the same principals as the H.264 code (which is also generic)
Simon
-----Original Message-----
From: h323plus-bounces at lists.packetizer.com
[mailto:h323plus-bounces at lists.packetizer.com]On Behalf Of Abhishek Rohilla
Sent: Thursday, January 17, 2008 7:42 PM
To: h323plus at lists.packetizer.com
Subject: [h323plus] How to add a generic Video Capability?
Hi
I have been able to build mpeg4 plugin code taken from opal cvs. Its
PluginCodec Definition has defined it as type
PluginCodec_H323Codec_nonStandard.
I have changed it to PluginCodec_H323Codec_generic and compiled it.
Should mpeg4 capability be added as generic or non-standard? What is the
difference between two?
My application is loading the dll perfectly fine now but the capabilities
are not being added because of the following reasons:
1.) Generic and non-standard video capabilties require
h323CapabilityData(last member in PluginCodec_Definition) to point to
generic capability data info. This has not been defined in opal plugin
code.
2.) H323Capability *CreateGenericVideoCap() is checking for
PluginCodec_H323GenericCodecData in PluginCodec_Definition and it is null
currently ,so capability is not created
Can someone help me in how to define generic capability data and what all
information it needs? I have recognized the structures in opalplugins.h but
don't know how to fill them with suitable values for mpeg4 plugin.
Please help
Thanks
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