I studied the history of vlc/include/vlc_atomic.h and compared it wth libav/compat/atomics/win32/stdatomic.h.
1. vlc/include/vlc_atomic.h was initially written by Rémi Denis-Courmont. This is the most substantial commit by Rémi Denis-Courmont: http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=ad3586579f956b6856d2f7c0c4cbd860fd8241af 2. The Windows port was written by Felix Abecassis. Note that he didn't add his copyright notice to vlc/include/vlc_atomic.h. This is the most substantial commit by Felix Abecassis: http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=9c077c0d28df2ad7387b4db8702bd023b2556c86 3. libav/compat/atomics/win32/stdatomic.h contains code that is apparently derived from the code in vlc/include/vlc_atomic.h written by both Rémi Denis-Courmont and Felix Abecassis, but doesn't have a copyright notice. Similarly, libav/compat/atomics/suncc/stdatomic.h contains code that is apparently derived from the code in vlc/include/vlc_atomic.h written by Rémi Denis-Courmont, but doesn't have a copyright notice. 4. Given this information, should I add a copyright notice to ffmpeg/compat/atomics/win32/stdatomic.h and ffmpeg/compat/atomics/suncc/stdatomic.h? 5. A related question: libav/compat/atomics/pthread/stdatomic.c does NOT contain any code that is apparently derived from the code in vlc/include/vlc_atomic.h written by Rémi Denis-Courmont, but libav/compat/atomics/pthread/stdatomic.c contains a copyright notice of Rémi Denis-Courmont. Should I remove that copyright notice from ffmpeg/compat/atomics/pthread/stdatomic.c? Thanks, Wan-Teh Chang _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel