[Interest] mirroring and reversing QMovie

Thiago Macieira thiago.macieira at intel.com
Thu Jul 14 02:18:13 CEST 2016

Em quinta-feira, 14 de julho de 2016, às 11:41:12 PDT, Frank Rueter | OHUfx 
> Thanks.
> What I'm currently exploring is using QImageReader, caching the frames
> via read() and basically implementing basic play back functions with
> timers in a custom paintEvent. That way I should have full control over
> which image is displayed when.
> Probably won't be the most efficient considering my lack of experience
> with those sort of things but I will cross that bridge when I get there :)

No, it's not.

You're basically describing MJPEG, a movie format made up of a sequence of 
JPEG-compressed frames. That's older than and produces movies that are less 
well compressed than MPEG1, which in turn is older than MPEG 2 (used on DVDs 
and most of the world's digital TV broadcasts), which is older than MPEG 4, 
which in turn is not as efficient than MPEG 4 Advanced Video Codec a.k.a. H.264. 
You'll get none of the improvements made over the last 20 years of video 

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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