[x265] Issue #535: Scenechange detection misses two clear scene cuts (multicoreware/x265)

[Boulder08]

New issue 535: Scenechange detection misses two clear scene cuts
https://bitbucket.org/multicoreware/x265/issues/535/scenechange-detection-misses-two-clear

Sami Inkinen:

The default scenechange detection method seems to miss two quite obvious scenecuts in this test clip. The scenechanges in question occur at frames 380 and 582. I have tried different values for both --scenecut and --scenecut-bias, but they do not help here.

The new histogram-based method has no problems finding them at threshold 0.035.

[https://drive.google.com/open?id=19cIzFGAocSHYlBNJdZJ08OaQbfBIHUjm](https://drive.google.com/open?id=19cIzFGAocSHYlBNJdZJ08OaQbfBIHUjm)