[x264-devel] Fixed GOP, keyint and keyint-min

[BugMaster]

On Wed, 23 Aug 2017 21:08:14 +0200, Lars Kiesow wrote:
> Hi everyone,
> today we had some discussion about forcing a fixed GOP size using x264
> with scenecut enabled to get additional I-frames. E.g. having an IDR
> frame exactly every 50 frames with some additional non-IDR I-frames in
> between if scenecut detects that having one would make sense.

> ...

Hi. There is no point in having fixed GOP with scenecut enabled i.e.
if you want fixed GOP you SHOULD disable scenecut. If you don't need
really fixed GOP (usually less than 100 frames) but only some sync
points between different encodeds of same video (say every 1000
frames) than you better use forced frame types (i.e. qpfile way of
x264 cli).