Youtube Downloader CLI

We will use Docker to keep our system clean and isolated.

1. Create a Dockerfile

Dockerfile

FROM python:3.11-slim

# Install ffmpeg dependencies
RUN apt-get update && apt-get install -y \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Install yt-dlp
RUN pip install --no-cache-dir yt-dlp

# Set the working directory
WORKDIR /downloads

2. Build the Docker Image

bash

docker build -t yt-dlp-local .

List Available Video and Audio Formats

To list all available formats for a given YouTube video, run the following command. Replace <video_url> with the actual YouTube URL.

bash

docker run --rm -v "$(pwd)":/downloads yt-dlp-local yt-dlp --list-formats "<video_url>"

Download a Video with 720p Resolution

To download a video in 720p resolution, use the following command. Replace <video_url> with the actual YouTube URL.

bash

docker run --rm -v "$(pwd)":/downloads yt-dlp-local yt-dlp -f "bestvideo[height=720][ext=mp4]+bestaudio[ext=m4a]" "<video_url>"

This command will automatically join video and audio file

Manually Join Audio and Video

To manually combine audio and video files, use the following command. Replace video.mp4 and audio.m4a with the actual file names, and output.mp4 with the desired output file name.

bash

docker run --rm -v "$(pwd)":/downloads yt-dlp-local ffmpeg -i video.mp4 -i audio.m4a -c:v copy -c:a aac -strict experimental output.mp4

Download Audio and Convert to MP3 Format

To download the audio from a video and convert it to MP3 format, use the following commands. Replace <video_url> with the actual YouTube URL and audio.m4a with the actual audio file name.

bash

docker run --rm -v "$(pwd)":/downloads yt-dlp-local yt-dlp -f bestaudio[ext=m4a] "<video_url>"
docker run --rm -v "$(pwd)":/downloads yt-dlp-local ffmpeg -i audio.m4a -acodec libmp3lame -ab 192k audio.mp3

without docker

bash

alias dl-full-hd='yt-dlp -S "res:1080,ext:mp4"'
alias dl-hd='yt-dlp -S "res:720,ext:mp4"'
alias dl-mp3='yt-dlp -f '\''ba'\'' -x --audio-format mp3'