[FFmpeg-devel] Here has a problem on doc/examples/filtering_audio.c

Hi, everyone, I do some tests with doc/examples/filtering_audio.c on audio formats like mp3, m4a(aac), mpc, ogg, ape, flac, tta, wma and so on. The original program(filtering_audio.c) always failed with audio format ape, and I do some modifications on this program, and runs properly after test.

[FFmpeg-devel] How to resolve "ERROR: sdl2 requested but not found" when cross compile?

I did compile SDL2 first, and run command "sudo ln -s /home/lixin/SDL2/bin/sdl2-config /usr/bin/arm-linux-gnueabihf-sdl2-config", but I got "ERROR: sdl2 requested but not found" message when I did cross compile. Here are commands what I did run for cross compile listed below: # export CROSS_COMP