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dash-widevine-rip

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Rip Widevine/CENC-protected DASH streams

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# DASH MPD + Widevine CENC ripper

Small utility for downloading, decrypting and combining playlists of DASH streams, usually found in video courses.

Given Widevine keys (CENC) decrypts each file part (audio, video). Keys can be obtained (on Chrome for Windows) using the `widevine-l3-decryptor` extension (which has been DMCA'd on GitHub, but is still available on various mirrors).

Requires `ffmpeg`.

## Setup

Make sure you have `ffmpeg` installed, then `pip install -r requirements.txt` (virtualenv recommended).

## Playlist file and usage

Prepare a TOML file looking like this:

```toml
[source]
base = "https://..." # typically a S3 bucket base URL
mpd = "stream.mpd" # MPD file suffix

[chapters]

[chapters."1. first chapter"]

[chapters."1. first chapter".episodes."1. first episode"]
id = "xxxxx" # video ID used as second path segment
keys."..." = "..." # widevine CENC key, generally 16 byte hex
```

Then run `python rip.py playlist.toml`

The ripper will fetch the MPD file (`base + id + mpd`), find the highest quality audio/video segments and their key IDs and download the corresponding files (`base + id + audio/video BaseURL`), then decrypt and combine them using `ffmpeg`.

You will find a directory for each chapter, and a file for each episode.

dash-widevine-rip

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