How to stream audio from a Youtube URL in Python (without download)?

pafy according to its documentation do not list playing media directly (at least I didn't find any).

However we can use it to get correct url, and then use player such as vlc to play directly without downloading.

You can download vlc from here

First we get correct / best URL from youtube using pafy

import pafy
import vlc

url = "https://www.youtube.com/watch?v=bMt47wvK6u0"
video = pafy.new(url)
best = video.getbest()
playurl = best.url

Over here playurl is best URL to play. Then we use VLC to play it.

Instance = vlc.Instance()
player = Instance.media_player_new()
Media = Instance.media_new(playurl)
Media.get_mrl()
player.set_media(Media)
player.play()

This will open a window with no controls (play/pause/stop etc). You can run these command on the repr window or at python prompt (depending upon how you are using it)
You will need to build one accordingly using vlc commands such as

>>> player.pause() #-- to pause video
>>> player.play()  #-- resume paused video. On older versions, 
                   #     this function was called resume
>>> player.stop()  #-- to stop/end video

The best way to accomplish this is to use mpv with youtube-dl (a light weight media player that comes with a command line console which allows you to stream any type of video/audio codecs via copy and pasting url to mpv console (works for cmd and terminal). Usage: path\to\mpv https://your/video/audioURL.com/

First import these modules - install via pip install bs4 requests

import re, requests, subprocess, urllib.parse, urllib.request
from bs4 import BeautifulSoup

Then create a variable to store music title of your choice

music_name = "Linkin Park Numb"
query_string = urllib.parse.urlencode({"search_query": music_name})

The goal here to use this search query to extract the output title and link of the first video result. We can then endcode the youtube url "https://www.youtube.com/results?search_query=" with the identifier using urllib (eg., "https://www.youtube.com/results?search_query=linkin+park+numb")

formatUrl = urllib.request.urlopen("https://www.youtube.com/results?" + query_string)

This right here re.findall(r"watch\?v=(\S{11})" views the 11 character identifier of all the video results from our query

search_results = re.findall(r"watch\?v=(\S{11})", formatUrl.read().decode())

After decoding the content, we can extract the full url by concatenating the main youtube url with the 11 character identifier

clip = requests.get("https://www.youtube.com/watch?v=" + "{}".format(search_results[0]))
clip2 = "https://www.youtube.com/watch?v=" + "{}".format(search_results[0])

print(clip2)
  • Output ==> https://www.youtube.com/watch?v=kXYiU_JCYtU

To further inspect the content, we can use beautifulsoup to scrape the extact title of the video

inspect = BeautifulSoup(clip.content, "html.parser")
yt_title = inspect.find_all("meta", property="og:title")

for concatMusic1 in yt_title:
    pass

print(concatMusic1['content'])
  • Output ==> Numb (Official Video) - Linkin Park

Finally, to play our music we input this to the command line

subprocess.Popen(
"start /b " + "path\\to\\mpv.exe" + clip2 + " --no-video --loop=inf --input-ipc-server=\\\\.\\pipe\\mpv-pipe > output.txt",
shell=True)

Full script

===================================================================

import re, requests, subprocess, urllib.parse, urllib.request
from bs4 import BeautifulSoup

music_name = "Linkin Park Numb"
query_string = urllib.parse.urlencode({"search_query": music_name})
formatUrl = urllib.request.urlopen("https://www.youtube.com/results?" + query_string)

search_results = re.findall(r"watch\?v=(\S{11})", formatUrl.read().decode())
clip = requests.get("https://www.youtube.com/watch?v=" + "{}".format(search_results[0]))
clip2 = "https://www.youtube.com/watch?v=" + "{}".format(search_results[0])

inspect = BeautifulSoup(clip.content, "html.parser")
yt_title = inspect.find_all("meta", property="og:title")

for concatMusic1 in yt_title:
    pass

print(concatMusic1['content'])

subprocess.Popen(
"start /b " + "path\\to\\mpv.exe " + clip2 + " --no-video --loop=inf --input-ipc-server=\\\\.\\pipe\\mpv-pipe > output.txt",
shell=True)


# Alternatively, you can do this for simplicity sake:
# subprocess.Popen("start /b " + "path\\to\\mpv.exe " + clip2 + "--no-video", shell=True)

Tags:

Python

Url

Audio

Stream

Youtube

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