[Libav-user] Options documentation

Hamilton Tobon Mosquera htobonm at eafit.edu.co
Fri Jul 3 15:54:03 EEST 2020

I appreciate you answered.

Yes, I'm trying to open a webcam as an input device (I take frames out 
of it). I know how to open it and capture frames, but it is opened in 
rawvideo mode and I need it to be MJPEG which I know is supported by the 
webcam. I guess the option is passed to the API function 
avformat_open_input(), which receives an AVDictionary **, but I don't 
know what options are available neither which values can be passed.

Any help or hint you can give me is a lot. Thank you.


On 7/2/20 7:54 PM, Brad Hards wrote:
> I think the answer often depends on what the dictionary is being used for. I find myself reading the code or looking for an example when unsure.
> Do you have a specific case you're trying to solve?
> Brad
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