* Add option `--live-from-start` to enable downloading live videos from start
* Add key `is_from_start` in formats to identify formats (of live videos) that downloads from start
* [dash] Create protocol `http_dash_segments_generator` that allows a function to be passed instead of fragments
* [fragment] Allow multiple live dash formats to download simultaneously
* [youtube] Implement fragment re-fetching for the live dash formats
* [youtube] Re-extract dash manifest every 5 hours (manifest expires in 6hrs)
* [postprocessor/ffmpeg] Add `FFmpegFixupDuplicateMoovPP` to fixup duplicated moov atoms
Known issue: Ctrl+C doesn't work on Windows when downloading multiple formats
Closes#1521
Authored by: nao20010128nao, pukkandan
Original PR: https://github.com/ytdl-org/youtube-dl/pull/30229
Per W3C JSON-LD v1.1 §4.9 (non-normative ref):
When a JSON-LD document's top-level structure is a map that contains
no other keys than @graph and optionally @context (properties that
are not mapped to an IRI or a keyword are ignored), @graph is
considered to express the otherwise implicit default graph.
Authored by: zmousm
Partially reverts cca80fe6110653582e8c8a8d06490b4028ffd755 and 0ba692acc8feffd46b6e1085fb4a2849b685945c
Unless `--check-formats` is specified, this causes yt-dlp to return incorrect thumbnail urls.
See https://github.com/yt-dlp/yt-dlp/issues/340#issuecomment-877909966, #402
But the overhead in general use is not worth it
Closes#694, #725
* Separate `--console-title` and `--no-progress`
* Add option `--progress` to show progress-bar even in quiet mode
* Fix and refactor `minicurses`
* Use `minicurses` for all progress reporting
* Standardize use of terminal sequences and enable color support for windows 10
* Add option `--progress-template` to customize progress-bar and console-title
* Add postprocessor hooks and progress reporting
Closes: #906, #901, #1085, #1170
