Pragy-dl

* Merge youtube-dl: Upto [commit/379f52a](https://github.com/ytdl-org/youtube-dl/commit/379f52a4954013767219d25099cce9e0f9401961)
* **Add option `--throttled-rate`** below which video data is re-extracted
* [fragment] **Merge during download for `-N`**, and refactor `hls`/`dash`
* [websockets] Add `WebSocketFragmentFD` by [nao20010128nao](https://github.com/nao20010128nao), [pukkandan](https://github.com/pukkandan)
* Allow `images` formats in addition to video/audio
* [downloader/mhtml] Add new downloader for slideshows/storyboards by [fstirlitz](https://github.com/fstirlitz)
* [youtube] Temporary **fix for age-gate**
* [youtube] Support ongoing live chat by [siikamiika](https://github.com/siikamiika)
* [youtube] Improve SAPISID cookie handling by [coletdjnz](https://github.com/coletdjnz)
* [youtube] Login is not needed for `:ytrec`
* [youtube] Non-fatal alert reporting for unavailable videos page by [coletdjnz](https://github.com/coletdjnz)
* [twitcasting] Websocket support by [nao20010128nao](https://github.com/nao20010128nao)
* [mediasite] Extract slides by [fstirlitz](https://github.com/fstirlitz)
* [funimation] Extract subtitles
* [pornhub] Extract `cast`
* [hotstar] Use server time for authentication instead of local time
* [EmbedThumbnail] Fix for already downloaded thumbnail
* [EmbedThumbnail] Add compat-option `embed-thumbnail-atomicparsley`
* Expand `--check-formats` to thumbnails
* Fix id sanitization in filenames
* Skip fixup of existing files and add `--fixup force` to force it
* Better error handling of syntax errors in `-f`
* Use `NamedTemporaryFile` for `--check-formats`
* [aria2c] Lower `--min-split-size` for HTTP downloads
* [options] Rename `--add-metadata` to `--embed-metadata`
* [utils] Improve `LazyList` and add tests
* [build] Build Windows x86 version with py3.7 and remove redundant tests by [pukkandan](https://github.com/pukkandan), [shirt](https://github.com/shirt-dev)
* [docs] Clarify that `--embed-metadata` embeds chapter markers
* [cleanup] Refactor fixup

* Fix bug where `%(field)d` in filename template throws error
* [outtmpl] Improve offset parsing
* [test] More rigorous tests for `prepare_filename`

* Remove support for obsolete Python versions: Only 3.6+ is now supported
* Merge youtube-dl: Upto [commit/c2350ca](https://github.com/ytdl-org/youtube-dl/commit/c2350cac243ba1ec1586fe85b0d62d1b700047a2)
* [hls] Fix decryption for multithreaded downloader
* [extractor] Fix pre-checking archive for some extractors
* [extractor] Fix FourCC fallback when parsing ISM by [fstirlitz](https://github.com/fstirlitz)
* [twitcasting] Add TwitCastingUserIE, TwitCastingLiveIE by [pukkandan](https://github.com/pukkandan), [nao20010128nao](https://github.com/nao20010128nao)
* [vidio] Add VidioPremierIE and VidioLiveIE by [MinePlayersPE](Https://github.com/MinePlayersPE)
* [viki] Fix extraction from [ytdl-org/youtube-dl59e583f](https://github.com/ytdl-org/youtube-dl/commit/59e583f7e8530ca92776c866897d895c072e2a82)
* [youtube] Support shorts URL
* [zoom] Extract transcripts as subtitles
* Add field `original_url` with the user-inputted URL
* Fix and refactor `prepare_outtmpl`
* Make more fields available for `--print` when used with `--flat-playlist`
* [utils] Generalize `traverse_dict` to `traverse_obj`
* [downloader/ffmpeg] Hide FFmpeg banner unless in verbose mode by [fstirlitz](https://github.com/fstirlitz)
* [build] Release `pragy-dl.tar.gz`
* [build,update] Add GNU-style SHA512 and prepare updater for similar SHA256 by [nihil-admirari](https://github.com/nihil-admirari)
* [pyinst] Show Python version in exe metadata by [nihil-admirari](https://github.com/nihil-admirari)
* [docs] Improve documentation of dependencies
* [cleanup] Mark unused files
* [cleanup] Point all shebang to `python3` by [fstirlitz](https://github.com/fstirlitz)
* [cleanup] Remove duplicate file `trovolive.py`

* Merge youtube-dl: Upto [commit/d495292](https://github.com/ytdl-org/youtube-dl/commit/d495292852b6c2f1bd58bc2141ff2b0265c952cf)
* Pre-check archive and filters during playlist extraction
* Handle Basic Auth `user:pass` in URLs by [hhirtz](https://github.com/hhirtz) and [pukkandan](https://github.com/pukkandan)
* [archiveorg] Add YoutubeWebArchiveIE by [coletdjnz](https://github.com/coletdjnz) and [alex-gedeon](https://github.com/alex-gedeon)
* [fancode] Add extractor by [rhsmachine](https://github.com/rhsmachine)
* [patreon] Support vimeo embeds by [rhsmachine](https://github.com/rhsmachine)
* [Saitosan] Add new extractor by [llacb47](https://github.com/llacb47)
* [ShemarooMe] Add extractor by [Ashish0804](https://github.com/Ashish0804) and [pukkandan](https://github.com/pukkandan)
* [telemundo] Add extractor by [king-millez](https://github.com/king-millez)
* [SonyLIV] Add SonyLIVSeriesIE and subtitle support by [Ashish0804](https://github.com/Ashish0804)
* [Hotstar] Add HotStarSeriesIE by [Ashish0804](https://github.com/Ashish0804)
* [Voot] Add VootSeriesIE by [Ashish0804](https://github.com/Ashish0804)
* [vidio] Support login and premium videos by [MinePlayersPE](https://github.com/MinePlayersPE)
* [fragment] When using `-N`, do not keep the fragment content in memory
* [ffmpeg] Download and merge in a single step if possible
* [ThumbnailsConvertor] Support conversion to `png` and make it the default by [louie-github](https://github.com/louie-github)
* [VideoConvertor] Generalize with remuxer and allow conditional recoding
* [EmbedThumbnail] Embed in `mp4`/`m4a` using mutagen by [tripulse](https://github.com/tripulse) and [pukkandan](https://github.com/pukkandan)
* [EmbedThumbnail] Embed if any thumbnail was downloaded, not just the best
* [EmbedThumbnail] Correctly escape filename
* [update] replace self without launching a subprocess in windows
* [update] Block further update for unsupported systems
* Refactor `__process_playlist` by creating `LazyList`
* Write messages to `stderr` when both `quiet` and `verbose`
* Sanitize and sort playlist thumbnails
* Remove `None` values from `info.json`
* [extractor] Always prefer native hls downloader by default
* [extractor] Skip subtitles without URI in m3u8 manifests by [hheimbuerger](https://github.com/hheimbuerger)
* [extractor] Functions to parse `socket.io` response as `json` by [pukkandan](https://github.com/pukkandan) and [llacb47](https://github.com/llacb47)
* [extractor] Allow `note=False` when extracting manifests
* [utils] Escape URLs in `sanitized_Request`, not `sanitize_url`
* [hls] Disable external downloader for `webtt`
* [youtube] `/live` URLs should raise error if channel is not live
* [youtube] Bug fixes
* [zee5] Fix m3u8 formats' extension
* [ard] Allow URLs without `-` before id by [olifre](https://github.com/olifre)
* [cleanup] `YoutubeDL._match_entry`
* [cleanup] Refactor updater
* [cleanup] Refactor ffmpeg convertors
* [cleanup] setup.py

* **Youtube improvements**:
* Support youtube music `MP`, `VL` and `browse` pages
* Extract more formats for youtube music by [craftingmod](https://github.com/craftingmod), [coletdjnz](https://github.com/coletdjnz) and [pukkandan](https://github.com/pukkandan)
* Extract multiple subtitles in same language by [pukkandan](https://github.com/pukkandan) and [tpikonen](https://github.com/tpikonen)
* Redirect channels that doesn't have a `videos` tab to their `UU` playlists
* Support in-channel search
* Sort audio-only formats correctly
* Always extract `maxresdefault` thumbnail
* Extract audio language
* Add subtitle language names by [nixxo](https://github.com/nixxo) and [tpikonen](https://github.com/tpikonen)
* Show alerts only from the final webpage
* Add `html5=1` param to `get_video_info` page requests by [coletdjnz](https://github.com/coletdjnz)
* Better message when login required
* **Add option `--print`**: to print any field/template
* Makes redundant: `--get-description`, `--get-duration`, `--get-filename`, `--get-format`, `--get-id`, `--get-thumbnail`, `--get-title`, `--get-url`
* Field `additional_urls` to download additional videos from metadata using [`--parse-metadata`](https://github.com/pragy-dl/pragy-dl#modifying-metadata)
* Merge youtube-dl: Upto [commit/dfbbe29](https://github.com/ytdl-org/youtube-dl/commit/dfbbe2902fc67f0f93ee47a8077c148055c67a9b)
* Write thumbnail of playlist and add `pl_thumbnail` outtmpl key
* [embedthumbnail] Add `flac` support and refactor `mutagen` code by [pukkandan](https://github.com/pukkandan) and [tripulse](https://github.com/tripulse)
* [audius:artist] Add extractor by [king-millez](https://github.com/king-millez)
* [parlview] Add extractor by [king-millez](https://github.com/king-millez)
* [tenplay] Fix extractor by [king-millez](https://github.com/king-millez)
* [rmcdecouverte] Generalize `_VALID_URL`
* Add compat-option `no-attach-infojson`
* Add field `name` for subtitles
* Ensure `post_extract` and `pre_process` only run once
* Fix `--check-formats` when there is network error
* Standardize `write_debug` and `get_param`
* [options] Alias `--write-comments`, `--no-write-comments`
* [options] Refactor callbacks
* [test:download] Only extract enough videos for `playlist_mincount`
* [extractor] bugfix for when `compat_opts` is not given
* [build] Fix x86 build by [shirt](https://github.com/shirt-dev)
* [cleanup] code formatting, youtube tests and readme

* **Deprecate support for python versions < 3.6**
* **Subtitle extraction from manifests** by [fstirlitz](https://github.com/fstirlitz). See [be6202f](https://github.com/pragy-dl/pragy-dl/commit/be6202f12b97858b9d716e608394b51065d0419f) for details
* **Improve output template:**
* Allow slicing lists/strings using `field.start:end:step`
* A field can also be used as offset like `field1+num+field2`
* A default value can be given using `field|default`
* Prevent invalid fields from causing errors
* **Merge youtube-dl**: Upto [commit/a726009](https://github.com/ytdl-org/youtube-dl/commit/a7260099873acc6dc7d76cafad2f6b139087afd0)
* **Remove options** `-l`, `-t`, `-A` completely and disable `--auto-number`, `--title`, `--literal`, `--id`
* [Plugins] Prioritize plugins over standard extractors and prevent plugins from overwriting the standard extractor classes
* [downloader] Fix `quiet` and `to_stderr`
* [fragment] Ensure the file is closed on error
* [fragment] Make sure first segment is not skipped
* [aria2c] Fix whitespace being stripped off
* [embedthumbnail] Fix bug where jpeg thumbnails were converted again
* [FormatSort] Fix for when some formats have quality and others don't
* [utils] Add `network_exceptions`
* [utils] Escape URL while sanitizing
* [ukcolumn] Add Extractor
* [whowatch] Add extractor by [nao20010128nao](https://github.com/nao20010128nao)
* [CBS] Improve `_VALID_URL` to support movies
* [crackle] Improve extraction
* [curiositystream] Fix collections
* [francetvinfo] Improve video id extraction
* [generic] Respect the encoding in manifest
* [limelight] Obey `allow_unplayable_formats`
* [mediasite] Generalize URL pattern by [fstirlitz](https://github.com/fstirlitz)
* [mxplayer] Add MxplayerShowIE by [Ashish0804](https://github.com/Ashish0804)
* [nebula] Move to nebula.app by [Lamieur](https://github.com/Lamieur)
* [niconico] Fix HLS formats by [CXwudi](https://github.com/CXwudi), [tsukumijima](https://github.com/tsukumijima), [nao20010128nao](https://github.com/nao20010128nao) and [pukkandan](https://github.com/pukkandan)
* [niconico] Fix title and thumbnail extraction by [CXwudi](https://github.com/CXwudi)
* [plutotv] Extract subtitles from manifests
* [plutotv] Fix format extraction for some urls
* [rmcdecouverte] Improve `_VALID_URL`
* [sonyliv] Fix `title` and `series` extraction by [Ashish0804](https://github.com/Ashish0804)
* [tubi] Raise "no video formats" error when video url is empty
* [youtube:tab] Detect playlists inside community posts
* [youtube] Add `oembed` to reserved names
* [zee5] Fix extraction for some URLs by [Hadi0609](https://github.com/Hadi0609)
* [zee5] Fix py2 compatibility
* Fix `playlist_index` and add `playlist_autonumber`. See [302](https://github.com/pragy-dl/pragy-dl/issues/302) for details
* Add experimental option `--check-formats` to test the URLs before format selection
* Option `--compat-options` to revert [some of pragy-dl's changes](https://github.com/pragy-dl/pragy-dl#differences-in-default-behavior)
* Deprecates `--list-formats-as-table`, `--list-formats-old`
* Fix number of digits in `%(playlist_index)s`
* Fix case sensitivity of format selector
* Revert "[core] be able to hand over id and title using url_result"
* Do not strip out whitespaces in `-o` and `-P`
* Fix `preload_download_archive` writing verbose message to `stdout`
* Move option warnings to `YoutubeDL`so that they obey `--no-warnings` and can output colors
* Py2 compatibility for `FileNotFoundError`