YouTube Video Downloader

• Download YouTube video(s)/audio(s) through the CLI
• Pass in the VIDEO_URL as an argument with the -p path/to/save and the --onlyaudio option to download the only the audio, from the video, and save it in path/to/save
• Helpful to download songs from YouTube (something which I do a lot)

Usage

NOTE

• Before cloning this repo, make sure you have ffmpeg installed locally on your machine.
• Also, make sure it is added to path.

Clone this repo locally

$ git clone https://github.com/Maharshi-Pandya/YouTube-Downloader.git
$ cd YouTube-Downloader
$ pip3 install -r requirements.txt

We have to pass in some arguments in the CLI for this to work

• --onlyaudio or -q (--quality)
• VIDEO_URL
• -p (--path) path/to/save

Eg.

$ python3 app.py --onlyaudio -p <path/to/save> <YouTube_VIDEO_URL>

Downloads only the audio from the YouTube video URL specified

Also,

$ python3 app.py -q 360p -p <path/to/save> <YouTube_VIDEO_URL>

Downloads the video in 360p quality and saves it to path/to/save

Behind the scenes, when the video source URL contains no audio streams, this script fetches the video file, and its corresponding audio file. Using ffmpeg then, it adds the audio file to the video file

NOTE

In some of the YouTube videos (eg. videos of VEVO), their source urls are encrypted with some signature cipher. The source urls cannot be fetched without getting the signature from the cipher. (YouTube constantly changes the algorithm in their JS files).

Currently, this YouTube-Downloader doesnot support that.

And it gives out this error

::-> Fetching the video data
::-> Extracted video information
::-> Detected signature ciphers in the video data
Error: Unable to start the download