# BREAKING
**destreamer v3.0** is just around the corner. Download speed improvement is astonishing and we have a never before seen photo from the design sessions:


_(Alternative artwork proposals are welcome! Submit one through an Issue.)_
# Saves Microsoft Stream videos for offline enjoyment
### v2 Release, codename _Hammer of DawnTM_
This release would not have been possible without the code and time contributed by two distinguished developers: [@lukaarma](https://github.com/lukaarma) and [@kylon](https://github.com/kylon). Thank you!
### Specialized vesions
- [Politecnico di Milano][polimi]: fork over at https://github.com/SamanFekri/destreamer
- [Università di Pisa][unipi]: fork over at https://github.com/Guray00/destreamer-unipi
- [Università della Calabria][unical]: fork over at https://github.com/peppelongo96/UnicalDown
- [Università degli Studi di Parma][unipr]: fork over at https://github.com/vRuslan/destreamer-unipr
## What's new
### v2.2
- Added title template
### v2.1
- Major code refactoring (all credits to @lukaarma)
- Destreamer is now able to refresh the session's access token. Use this with `-k` (keep cookies) and tick "Remember Me" on login.
- We added support for closed captions (see `--closedCaptions` below)
## Disclaimer
Hopefully this doesn't break the end user agreement for Microsoft Stream. Since we're simply saving the HLS stream to disk as if we were a browser, this does not abuse the streaming endpoints. However i take no responsibility if either Microsoft or your Office 365 admins request a chat with you in a small white room.
## Prereqs
- [**Node.js**][node]: You'll need Node.js version 8.0 or higher. A GitHub Action runs tests on all major Node versions on every commit. One caveat for Node 8, if you get a `Parse Error` with `code: HPE_HEADER_OVERFLOW` you're out of luck and you'll need to upgrade to Node 10+.
- **npm**: usually comes with Node.js, type `npm` in your terminal to check for its presence
- [**ffmpeg**][ffmpeg]: a recent version (year 2019 or above), in `$PATH` or in the same directory as this README file (project root).
- [**git**][git]: one or more npm dependencies require git.
Destreamer takes a [honeybadger](https://www.youtube.com/watch?v=4r7wHMg5Yjg) approach towards the OS it's running on. We've successfully tested it on Windows, macOS and Linux.
## Limits and limitations
Make sure you use the right script (`.sh`, `.ps1` or `.cmd`) and escape char (if using line breaks) for your shell.
PowerShell uses a backtick [ **`** ] and cmd.exe uses a caret [ **^** ].
Note that destreamer won't run in an elevated (Administrator/root) shell. Running inside **Cygwin/MinGW/MSYS** may also fail, please use **cmd.exe** or **PowerShell** if you're on Windows.
**WSL** (Windows Subsystem for Linux) is not supported as it can't easily pop up a browser window. It *may* work by installing an X Window server (like [Xming][xming]) and exporting the default display to it (`export DISPLAY=:0`) before running destreamer. See [this issue for more on WSL v1 and v2][wsl].
## How to build
To build destreamer clone this repository, install dependencies and run the build script -
```sh
$ git clone https://github.com/snobu/destreamer
$ cd destreamer
$ npm install
$ npm run build
```
## Usage
```
$ ./destreamer.sh
Options:
--help Show help [boolean]
--version Show version number [boolean]
--username, -u The username used to log into Microsoft Stream (enabling this will fill in the email field for
you) [string]
--videoUrls, -i List of video urls [array]
--inputFile, -f Path to text file containing URLs and optionally outDirs. See the README for more on outDirs.
[string]
--outputTemplate, -t The template for the title. See the README for more info.
[string] [default: "{title} - {publishDate} {uniqueId}"]
--outputDirectory, -o The directory where destreamer will save your downloads [string] [default: "videos"]
--keepLoginCookies, -k Let Chromium cache identity provider cookies so you can use "Remember me" during login
[boolean] [default: false]
--noExperiments, -x Do not attempt to render video thumbnails in the console [boolean] [default: false]
--simulate, -s Disable video download and print metadata information to the console[boolean] [default: false]
--verbose, -v Print additional information to the console (use this before opening an issue on GitHub)
[boolean] [default: false]
--closedCaptions, --cc Check if closed captions are aviable and let the user choose which one to download (will not
ask if only one aviable) [boolean] [default: false]
--noCleanup, --nc Do not delete the downloaded video file when an FFmpeg error occurs [boolean] [default: false]
--vcodec Re-encode video track. Specify FFmpeg codec (e.g. libx265) or set to "none" to disable video.
[string] [default: "copy"]
--acodec Re-encode audio track. Specify FFmpeg codec (e.g. libopus) or set to "none" to disable audio.
[string] [default: "copy"]
--format Output container format (mkv, mp4, mov, anything that FFmpeg supports)
[string] [default: "mkv"]
--skip Skip download if file already exists [boolean] [default: false]
```
- Passing `--username` is optional. It's there to make logging in faster (the username field will be populated automatically on the login form).
- You can use an absolute path for `-o` (output directory), for example `/mnt/videos`.
- We default to `.mkv` for the output container. If you prefer something else (like `mp4`), pass `--format mp4`.
Download a video -
```sh
$ ./destreamer.sh -i "https://web.microsoftstream.com/video/VIDEO-1"
```
Download a video and re-encode with HEVC (libx265) -
```sh
$ ./destreamer.sh -i "https://web.microsoftstream.com/video/VIDEO-1" --vcodec libx265
```
Download a video and speed up the interactive login by automagically filling in the username -
```sh
$ ./destreamer.sh -u user@example.com -i "https://web.microsoftstream.com/video/VIDEO-1"
```
Download a video to a custom path -
```sh
$ ./destreamer.sh -i "https://web.microsoftstream.com/video/VIDEO-1" -o /Users/hacker/Downloads
```
Download two or more videos -
```sh
$ ./destreamer.sh -i "https://web.microsoftstream.com/video/VIDEO-1" \
"https://web.microsoftstream.com/video/VIDEO-2"
```
Download many videos but read URLs from a file -
```sh
$ ./destreamer.sh -f list.txt
```
### Input file
You can create a `.txt` file containing your video URLs, one video per line. The text file can have any name, followed by the `.txt` extension.
Additionally you can have destreamer download each video in the input list to a separate directory.
These optional lines must start with white space(s).
Usage -
```
https://web.microsoftstream.com/video/xxxxxxxx-aaaa-xxxx-xxxx-xxxxxxxxxxxx
-dir=videos/lessons/week1
https://web.microsoftstream.com/video/xxxxxxxx-aaaa-xxxx-xxxx-xxxxxxxxxxxx
-dir=videos/lessons/week2"
```
### Title template
The `-t` option allows users to input a template string for the output file names.
You can use one or more of the following magic sequence which will get substituted at runtime. The magic sequence must be surrounded by curly brackets like this: `{title} {publishDate}`
- `title`: Video title
- `duration`: Video duration in HH:MM:SS format
- `publishDate`: The date when the video was published in YYYY-MM-DD format
- `publishTime`: The time the video was published in HH:MM:SS format
- `author`: Name of video publisher
- `authorEmail`: E-mail of video publisher
- `uniqueId`: An _unique-enough_ ID generated from the video metadata
Example -
```
Input:
-t '{title} - {duration} - {publishDate} - {publishTime} - {author} - {authorEmail} - {uniqueId}'
Expected filename:
This is an example - 0:16:18 - 2020-07-30 - 10:30:13 - lukaarma - example@domain.org - #3c6ca929.mkv
```
## Expected output
Windows Terminal -

iTerm2 on a Mac -

By default, downloads are saved under `videos/` unless specified by `-o` (output directory).
## Contributing
Contributions are welcome. Open an issue first before sending in a pull request. All pull requests require at least one code review before they are merged to master.
## Found a bug?
Please open an [issue](https://github.com/snobu/destreamer/issues) and we'll look into it.
[ffmpeg]: https://www.ffmpeg.org/download.html
[xming]: https://sourceforge.net/projects/xming/
[node]: https://nodejs.org/en/download/
[git]: https://git-scm.com/downloads
[wsl]: https://github.com/snobu/destreamer/issues/90#issuecomment-619377950
[polimi]: https://www.polimi.it
[unipi]: https://www.unipi.it/
[unical]: https://www.unical.it/portale/
[unipr]: https://www.unipr.it/