panopto-download

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panopto-download

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Script to facilitate batch downloading of lecture videos from Panopto

panopto-download 최신버젼 다운로드

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// repository documentation

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# Background & Overview

Students deserve access to course materials, even after completing a course. At
Carnegie Mellon, many lecture videos are recorded and made available online on
[Panopto](https://www.panopto.com/). There is no easy user-interface to
download course videos, but there is a feature where folders of recorded videos
generate RSS feeds.

This script parses Panopto RSS feeds and extracts video URLs for batch
downloading. In general, this project is designed to make it as easy as possible
to download Panopto videos and lectures.

# Quick Start

1. To use the script, clone the repository or download `panopto-video-urls.py`,
   and go into the `panopto-download` directory.

```
    git clone https://github.com/jstrieb/panopto-download.git && cd panopto-download
    ```

2. Make sure Python 3 is running (check by running `python --version` or
   locating a `python3` binary). Also make sure the `requests` library is
   installed -- it may have been installed by another package. To install it
   (particularly if seeing a `ModuleNotFoundError`), run the following.

```
    python3 -m pip install -r requirements.txt
    ```

Additionally, if on a system with limited permissions, instead run the
    following command. This only installs the dependencies for the local user,
    rather than system-wide. In particular, if running the script on the Andrew
    servers, students can only install locally since their accounts lack `sudo`
    permissions.

```
    python3 -m pip install --user -r requirements.txt
    ```

3. Test that the command works. When run, there should be output (somewhat)
   like the following.

```
    $ python3 panopto-video-urls.py
    usage: panopto-video-urls.py [-h] [-o OUTPUT_FILE] [-x] podcast_url
    panopto-video-urls.py: error: the following arguments are required: podcast_url
    ```

4. Get a Panopto RSS URL. For more information on how to do this, see the next
   section.

5. Now, use the script to generate a list of video URLs to download. This can
   be saved into a file using the `-o` option, or it can be piped directly into
   `xargs` if on a system where it is installed. The latter is my preferred
   option. To download all videos from an RSS link, I do the following.

```
    python3 panopto-video-urls.py -x "http://<some link>" | xargs -L 2 -P 8 curl -q -L
    ```

The `-L 2` option to `xargs` specifies that it should read two consecutive
   lines as arguments to each command that is run (run with `-L 3` if using
   cookies), and the `-P 8` option specifies how many processes to run at once.
   Using `0` for the number of processes denotes using as many as possible, but
   `8` has greater cross-platform compatibility, and is thus used instead.

The `-L` option to `curl` specifies that `curl` should follow redirects until
   it gets to the video, and is different from the `-L` option passed to 
   `xargs`. The `-q` option tells `curl` not to print a progress bar for each
   process.

# Getting Panopto RSS Feed URLs

Panopto automatically generates RSS feeds for folders of videos. The links to
these feeds are what is used as input for the script.

1. To get a course or folder's RSS link, first navigate to its folder. One way
   to do this is by using the "Shared With Me" link on the left side of the
   page.

![Step 1](https://raw.githubusercontent.com/jstrieb/panopto-download/master/doc/step-1.png)

2. When looking at a list of videos, click the name of the folder ("Location")
   on the right to navigate to that folder.

![Step 2](https://raw.githubusercontent.com/jstrieb/panopto-download/master/doc/step-2.png)

3. Finally, in the top-right corner, there is an RSS button. Click that, and
   right click on "Subscribe to RSS" to copy the RSS link.

![Step 3](https://raw.githubusercontent.com/jstrieb/panopto-download/master/doc/step-3.png)

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