I suggest adding
What are these tags?
losslesstag is to be used for the operations requiring no quality loss.
no-reencodingtag is de facto subset or
losslesstag where the medium isn't re-encoded.
Here is the example table,
|Changing audio codec from ALAC to MP3
|Changing audio codec from ALAC to WAV
|Changing container from MKV to MP4
Note: While some operations may be
lossless or even
no-reencoding, people often don't explicitly want to have these properties in the end result.
Why are those useful?
I used to collect the software and solutions I can use for explicitly lossless (and even no-reencoding) video operations (such as frame-perfect cuts, no-reenconding frame-imperfect cuts, video concatenation, video conversion, encoding pictures and audio into a singular video file and so on). I'd find, and later verify the information I find on Doom9 or VideoHelp.
Given we now have a stackexchange for video operations, I hope I can carry across some of that information over here, for future use.
As a user, one can then find all lossless (and no re-enconding information) by filtering against these tags.
Suggested tag aliases,
Questions that can make use of these tags,
- Using ffmpeg to add height (as black bars) to video file without quality loss -
- Convert mp4 to webm without quality loss with ffmpeg -
- How to cut part of MP4 file using FFmpeg without reencoding? - both