Where does ffmpeg looks for all available filters?

[navedjobs]

Can any one tell me that , when we install any filter (for eg: UScreenCapture) how ffmpeg recognise it ? for eg: in the below command how ffmpeg is able to find a filter called UScreenCapture ?

Code: Select all

ffmpeg -f dshow -i video="UScreenCapture" -r film out.flv

[rogerdpack]

dshow are "direct show devices" installed on your system.
They're basically all listed in the windows registry.

You can list the devices:
http://betterlogic.com/roger/2011/08/ffmpeg-directshow/

[navedjobs]

dshow are "direct show devices" installed on your system.
They're basically all listed in the windows registry.

You can list the devices:
http://betterlogic.com/roger/2011/08/ffmpeg-directshow/

So when i install "UScreenCapture filter" it edits some registry values right ?

[rogerdpack]

The UScreenCapture installer "adds" some registry values. ffmpeg then makes a call into the directshow framework, which returns the list.

[navedjobs]

The UScreenCapture installer "adds" some registry values. ffmpeg then makes a call into the directshow framework, which returns the list.

thanks ...and one more thing, please can you tell me which registry "UScreenCapture installer" edits and what value it puts in there ?
thanks...

[rogerdpack]

run regedit and search for "uscreencapture" that's all I can suggest, since I don't know the details.
Basically it sets itself up as a directshow device, and lists the path to uscreencapture.dll or whatever file their dll is.

If you're looking for registry settings to "control" where it captures, you'll have to look in their documentation.
GL!
-roger-