SH4 optimizations have been removed incommit d6096a67422534918405abb46dafbbac4608cbc3The last revission with the optimizations is cbfc9046e1c7e295b74f252902ae6f255eef4e78If you want to maintain these (or other) SH4 optimizations in ffmpeg, then pleasecontact ffmpeg-devel@ffmpeg.org