* fallback player url extraction when it fails to be extracted from the webpage
* don't download js player unnecessarily for clients that don't require it
* try to extract js player url from any additional client configs
* ability to skip the js player usage/download using `player_skip=js`
* ability to skip the initial webpage download using `player_skip=webpage`
known issue:
* authentication for multi-channel accounts and multi-account cookies may not work correctly if the webpage or client configs are skipped
* formats from the web client requiring signature decryption will be skipped if player js extraction is skipped
Authored by: coletdjnz
* [docs] Fix typo
* Do not enable `sponskrub` by default
* Fix `--force-keyframes-at-cuts`
* Don't embed subtitles if the video has been cut. Previously, running `--remove-chapters` with `--embed-subs` multiple times caused repeated cuts and out-of-sync subtitles
* Store `_real_duration` to prevent running ffprobe multiple times
SponsorBlock options:
* The fetched sponsor sections are written to infojson
* `--sponsorblock-remove` removes specified chapters from file
* `--sponsorblock-mark` marks the specified sponsor sections as chapters
* `--sponsorblock-chapter-title` to specify sponsor chapter template
* `--sponsorblock-api` to use a different API
Related improvements:
* Split `--embed-chapters` from `--embed-metadata`
* Add `--remove-chapters` to remove arbitrary chapters
* Add `--force-keyframes-at-cuts` for more accurate cuts when removing and splitting chapters
Deprecates all `--sponskrub` options
Authored by: nihil-admirari, pukkandan
When using
```py
os.remove(encodeFilename(filename))
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
```
the `os.remove` need not be atomic and so can be executed arbitrarily compared to the immediately following rename call. It is better to use `os.replace` instead
Authored by: paulwrubel