[FFmpeg-devel] lavc/libvpxenc: Deprecate lossless option

[Carl Eugen Hoyos]

2019-02-10 13:06 GMT+01:00, Kieran O Leary <kieran.o.leary at gmail.com>:
> On Sat, 9 Feb 2019, 06:49 Gyan <ffmpeg at gyani.pro wrote:

>> although the `-lossless 1` encoding does return as lossless in SSIM.
>
> What ssim command did you use, and why use this over a hash muxer like
> framehash? I'm always on the lookout for losslessness verification methods.

If you trust FFmpeg (this thread gives several indications why you shouldn't)
the output format crc is simpler to type, easier to interpret and - in theory -
safer than ssim.

Carl Eugen