[Idea] Add warning if converted file is bigger than the original one

[azsde]

trafficstars

For some reason, encoding some x264 files into x265 files results in 20% larger files

Would be great to add a warning specifying all biggers files

[FallingSnow]

Ok. I'll add an enhancement tag but I don't know when I'll get around to it. You're free to submit a pull request.

Btw, h265ize uses crf encoding which attempts to achieve a constant subjective quality. It is always suggested that you come from a high fidelity (very similar to its original) source.

I don't know if you already know this but I figured I would rant anyway. When you come from a low quality source the encoder attempts to remains as truthful to the input as possible (with respect to your crf setting). This means encoding all the artifacts and noise.

For example, if I first take a blu-ray rip and encode it with the worst settings in x264, I'm going to get a lot of artifacts. If I then use h265ize with hq settings, x265 will attempt to remain as faithful as possible to all those mistakes in the input created by x264.

[mikelesagitter]

Hi, first of all thanks for your work, I really need to save some disk space :) My advice is to set this as a parameter in the command line. A decision whether or not save the new file if its bigger than the source. maybe a subparameter of -delete?