[Libav-user] Modify libav

Pierre Delmas pierre.delmas at centrale-marseille.fr
Wed May 24 12:33:35 EEST 2017

Hi everyone,

Is there a way to properly modify libav ?

Because today I try to modify it by adding some printf in it in a 
fonction which I know she is called because I call it myself 
(av_write_trailer for information) and after adding my printf I run the 
following command :

cd <path_to_ffmpeg_root_source_code_folder> && sudo find . -name "*.d" 
-delete && sudo find . -name "*.o" -delete && sudo make uninstall && 
sudo make && sudo make install

but my printf are not displayed so I think the version which is executed 
is not the one with the printf.

So how to modify and after that compile libav with my modifications ?

Thank you for your help,


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