Hello, I am trying to analyze the execution of sws_scale to resample and resize video in terms of cpu usage and execution time. I have seen there is an example on how to scale video in the ffmpeg doxygen documentation. However I am only interested in loading an image (or a frame of a video) and apply the scaling operation. I searched for a way to load an image to an AVFrame, apply the sws_scale and then write the resulting AVFrame to a file so I can verify the result. This project is my first contact with multimedia programming so I do not have much knowledge about codecs and all that stuff.
If you please could inform me how I can do that I would be very appreciated since I am trying to do this since last week and I can not seem to get it to work. Thanks in advance.
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