[x264-devel] [PATCH] improved scene cut detection

[Gabriel Bouvigne]

Thomas Tzeng a écrit :
> One basic question...
> 
> Does the scene cut detection is used to support variable size GOP, or to 
> speed up the encoding process (like mode decision)?

To support I frame insertion (in x264 you can, in some cases, insert an 
I frame without restarting a GOP)

> By the way, where can I find the brief description of the scene cut 
> detection algorithm in x264? Thanks

x264 is doing an evaluation of the coding cost of a P frame vs an I 
frame. The detection threshold is variable, being more sensitive when 
are far from the last keyframe (in a similar way to Xvid)


--
Gabriel

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