Develop Reference

public ip camera reading with opencv

I would like to process an public ip camera stream in a simple python application, but I can't get it to work. I am able to connect with the local stream using rtsp, but when I try to caputre the stream in the same fashion via ipcamlive.com I am not able to open the stream. I am using an Axis camera model M3105-L which streams h264.
This is the code for capturing the stream on my local network. The code actually doesn't matter. Only the url matters.
Theres an code example on how to embed the stream (<iframe src= "https://g0.ipcamlive.com/player/player.php?alias=2022camera1" width="800px" height="450px" frameborder="0" allowfullscreen> </iframe>) into your webpage, but I would like to process the stream with opencv as well to eventually do something with motion detection etc.
Any help would be appriciated. Thank you in advance.
import cv2
import os
RTSP_URL = 'rtsp://<username>:<password>#<ip-address>/axis-media/media.amp'
cap = cv2.VideoCapture(RTSP_URL, cv2.CAP_FFMPEG)
if not cap.isOpened():
print('Cannot open RTSP stream')
exit(-1)
while True:
_, frame = cap.read()
cv2.imshow('RTSP stream', frame)
if cv2.waitKey(1) == 27:
break
cap.release()
cv2.destroyAllWindows()

How to add "pytube" downloading info to tqdm Progress Bar?

I am trying make a YouTube video downloader.
I want make a progress bar while downloading the YouTube video but I cant get any info (how many MB have been downloaded or how many video MB).
I don't know if this is possible with python or not. Here is my code so far:
import time , os
from pytube import YouTube
from tqdm import tqdm
al = str(input("C4ommand:"))
if al == "4":
af = input("Link:")
you = YouTube(af)
try:
os.mkdir("Download")
except:
pass
time.sleep(2)
time.sleep(1)
res = you.streams.get_highest_resolution()
a = res.download()
with tqdm(total=100) as pbar:
for i in range(10):
time.sleep(0.5)
pbar.update(10)
print(af + "Link downloading....")
b = open("\Download", "w")
b.write(a)
b.close()
print("Downloaded")

To access the progress of the download, you can use the on_progress_callback argument when creating a YouTube instance.
The pytube quickstart says the following:
The on_progress_callback function will run whenever a chunk is downloaded from a video, and is called with three arguments: the stream, the data chunk, and the bytes remaining in the video. This could be used, for example, to display a progress bar.
from pytube import Stream
from pytube import YouTube
from tqdm import tqdm
def progress_callback(stream: Stream, data_chunk: bytes, bytes_remaining: int) -> None:
pbar.update(len(data_chunk))
url = "http://youtube.com/watch?v=2lAe1cqCOXo"
yt = YouTube(url, on_progress_callback=progress_callback)
stream = yt.streams.get_highest_resolution()
print(f"Downloading video to '{stream.default_filename}'")
pbar = tqdm(total=stream.filesize, unit="bytes")
path = stream.download()
pbar.close()
print(f"Saved video to {path}")
Sample output:
Downloading video to 'YouTube Rewind 2019 For the Record YouTubeRewind.mp4'
100%|██████████████████████████████| 87993287/87993287 [00:17<00:00, 4976219.51bytes/s]
Saved video to /tmp/testing/YouTube Rewind 2019 For the Record YouTubeRewind.mp4
Pytube has a built-in progress bar, but it does not use tqdm. Please see https://stackoverflow.com/a/60678355/5666087 for more information.

Is there a way to get YT url or video ID from playlist with pafy?

I am trying to make a program that takes YT playlist and play all it's content.
I've installed all components needed for pafy to run with python3. Everything I've tried works as it's expected, except the bellow part of the code.
plurl = "https://www.youtube.com/playlist?list=PL634F2B56B8C346A2"
playlist = pafy.get_playlist(plurl)
url = playlist['items'][21]['pafy'].getbest().url
video = pafy.new(url)
When pafy.new() is called, gives an error because of too long url:
Need 11 character video id or the URL of the video. Got https://r2---sn-bavc5aoxu-nv4l.googlevideo.com/videoplayback?ms=au%2Crdu&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cexpire&mv=m&mt=1554899146&requiressl=yes&ip=37.157.173.53&pl=19&id=o-AGQZkyoEvykUGae7O4v_Ycmuj4jJBYdgafcfLBQ5S4Dd&mn=sn-bavc5aoxu-nv4l%2Csn-nv47lnsr&mm=31%2C29&source=youtube&lmt=1387649403290510&ei=POGtXJzdIo_ugAeEiL_wAQ&c=WEB&key=yt6&mime=video%2Fmp4&gir=yes&itag=18&clen=5461830&fvip=2&expire=1554920860&ratebypass=yes&dur=206.100&initcwndbps=1573750&ipbits=0&signature=AAA8B36CD3B402F587F874956595ACB928806C4F.D36C0A79E7F1727DB872425E696DBFC550AA7DF6
Is there a way I can get normal url or video ID ?

The videoid is also available in the url object. You can use
dir(<object>)
to see what properties are available.
id = playlist['items'][2]['pafy'].videoid
video = pafy.new('https://www.youtube.com/watch?v='+id)
use try and catch before using pafy.new , as some of the videos might not be available in the region.

How to find Youtube video duration with python selenium?

I am trying to get the video duration using Selenium with python 3. The code is working properly with small videos (I've tried up to 30 minutes). But with longer videos, nothing is shown. I can't find any solution.
My Code:
from selenium import webdriver
import time, os
firefox = webdriver.Chrome()
#youtube_url = "https://www.youtube.com/watch?v=oEx-SBpZP_M" # Short Video
youtube_url = "https://www.youtube.com/watch?v=EMWM2uN8WCQ" # Long Video
firefox.get(youtube_url)
number_of_views = firefox.find_element_by_css_selector('#count > yt-view-count-renderer > span.view-count.style-scope.yt-view-count-renderer')
print(number_of_views.text)
duration = firefox.find_element_by_css_selector('#movie_player > div.ytp-chrome-bottom > div.ytp-chrome-controls > div.ytp-left-controls > div > span.ytp-time-duration')
print(duration)
print(duration.text)

The issue with all these solutions is if the element is visible or not.
I.E.
cur_time = driver.find_element_by_class_name("ytp-time-current").text
print(cur_time)
It will only print the cur_time if my mouse is hovering over the video and the element is showing. Otherwise if the video playback time isn't showing selenium will not be able to grab the element. Here's a GIF showing this to be the case.
https://i.imgur.com/bmWdC7A.gif
You need to execute javascript on the page to get the current time and duration. Youtube Player API has functions for both.
video_dur = self.driver.execute_script(
"return document.getElementById('movie_player').getCurrentTime()")
video_len = self.driver.execute_script(
"return document.getElementById('movie_player').getDuration()")
video_len = int(video_len) / 60
print(f"{video_dur}/{video_len})
https://i.imgur.com/TEdFZ0z.gif
This will continue to work even if I am not on the page.
https://i.imgur.com/qXcbPDG.gif

just use this:
duration = firefox.find_element_by_class_name('ytp-cued-thumbnail-overlay-duration')
print(duration)
print(duration.text)

duration = driver.find_elements_by_xpath("//span[#class='ytp-time-duration']")[0]
print(duration.text)

VLC Media Player API

I am trying to stream an online video using VLC media player. But the URL I'm receiving is random, so that URL needs to be linked to the VLC media player online stream. Is there any APIs that enables the random online video to be played ?
A small understanding of the project that I'm building...
I have a device that will receive the URL from the server and will play it on a screen.
Earlier I was playing it via a web browser. But this time I want it to implement it using a media player.Thus my question, is there any API for VLC media player that can be used to stream online videos?
*** BTW I'm using python to write my scripts.

As wizzwizz4 stated the vlc.py program is available # https://wiki.videolan.org/Python_bindings along with example code for wxpython, pyQt and pyGtk
The documentation is here: https://www.olivieraubert.net/vlc/python-ctypes/doc/
Here is a rough bit of code, which runs from the command line, to give you a start
import requests
import vlc
import time
import os
#Test data a local file, a couple of radio stations and a video to cover all the bases
urls = [
'file:///home/rolf/Music/H5O.mp3',
'http://www.lounge-radio.com/listen128.m3u',
'http://network.absoluteradio.co.uk/core/audio/aacplus/live.pls?service=acbb',
'http://statslive.infomaniak.ch/playlist/energy90s/energy90s-high.mp3/playlist.pls',
'http://streaming.radio.rtl2.fr/rtl2-1-44-128',
'http://clips.vorwaerts-gmbh.de/VfE_html5.mp4'
]
#Define playlist extensions
playlists = set(['pls','m3u'])
#Define vlc playing Status values
playing = set([1,2,3,4])
Instance = vlc.Instance()
# Loop over urls provided
for url in urls:
print ("\n\nLooking for:", url)
# Grab file extension
ext = (url.rpartition(".")[2])[:3]
found = False
# Test if url is a local file or remote
if url[:4] == 'file':
if os.path.isfile(url[7:]):
found = True
else:
print ('Error: File ', url[7:], ' Not found')
continue
else:
try:
r = requests.get(url, stream=True)
found = r.ok
except ConnectionError as e:
print('failed to get stream: {e}'.format(e=e))
continue
if found:
player = Instance.media_player_new()
Media = Instance.media_new(url)
Media_list = Instance.media_list_new([url])
Media.get_mrl()
player.set_media(Media)
# if url is a playlist load list_player else use player
if ext in playlists:
list_player = Instance.media_list_player_new()
list_player.set_media_list(Media_list)
if list_player.play() == -1:
print ("\nError playing playlist")
else:
if player.play() == -1:
print ("\nError playing Stream")
#=========================================================#
# #Use this code for 15 second samples
print ('Sampling ', url, ' for 15 seconds')
time.sleep(15)
#
#=========================================================#
# #Use this code to play audio until it stops
# print ('Playing ', url, ' until it stops')
# time.sleep(5) #Give it time to get going
# while True:
# if ext in playlists:
# state = list_player.get_state()
# if state not in playing:
# break
# else:
# state = player.get_state()
# if state not in playing:
# break
#=========================================================#
if ext in playlists:
list_player.stop()
else:
player.stop()
else:
print ('\nError getting the audio')

If the URL is to the stream / video file, you can just open it directly in VLC like you would anything else. If it's to an HTML document, you'll need to extract the URL of the actual stream.