[x264-devel] Levels 4.2, and 5.x with x264

[BugMaster]

On Fri, 2 Dec 2016 12:38:48 -0500, Dan Rosen wrote:
> Seems that x264 will encode at levels 4.2 and 5.x as MBAFF if the
> interlace parameter is set.  Shouldn't it be forcing the frames to
> be progressive, i.e. frame_mbs_only_flag = 1?

> Thanks, Dan Rosen, VideoReDo

Hi. No it wouldn't force progressive (even thou interlaced is not
allowed at this levels) but only output warning. And yes, currently
the combination of auto level, auto refs and interlaced can choose
incorrect level so better specify level or refs explicitly with
interlaced.