On 12/28/2017 9:27 AM, Zhong Li wrote: > + av_log(ctx, AV_LOG_VERBOSE, > + "Initialize MFX session: API version is %d.%d, implementation version is %d.%d\n", > + MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor); Maybe AV_LOG_DEBUG? I have no strong opinion, though. - Derek