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This structure describes operations that must be supported by codec factories.
Check whether the factory can create codec with the specified codec info.
Create default attributes for the specified codec ID. This function can be called by application to get the capability of the codec.
Enumerate supported codecs that can be created using this factory.
Create one instance of the codec with the specified codec info.
This function is called by codec manager to return a particular instance of codec back to the codec factory.
This callback will be called to deinitialize and destroy this factory.