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.
Hamilton.
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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