How to read Youtube live stream using openCV python? Question: I want to read a live stream from youtube to perform some basic CV things, probably we have to somehow strip of the youtube URL to convert it in a format that might be readable by openCV like?: cap = cv2.VideoCapture(‘https://www.youtube.com/watch?v=_9OBhtLA9Ig’) has anyone done it? …
Difference between `open` and `io.BytesIO` in binary streams Question: I’m learning about working with streams in Python and I noticed that the IO docs say the following: The easiest way to create a binary stream is with open() with ‘b’ in the mode string: f = open("myfile.jpg", "rb") In-memory binary streams are also available as …
Python3.4 read content stream web request Question: How, in Python3.4, can I read the data from a web request which has an event-stream as content type? The stream data is updated every 30 seconds and for each of them I would extract and process data. Example: I performed a request on http://example.com/value121 In the headers, …
How to play videos from the web like youtube in kivy Question: I really want to create a kivy app that lets me view videos from certain web links. How can I go about doing this, Like having a link to a video then play it in Kivy? I already read the documentation and I …
Consuming a kinesis stream in python Question: I cant seem to find a decent example that shows how can I consume an AWS Kinesis stream via Python. Can someone please provide me with some examples I could look into? Best Asked By: aliirz || Source Answers: you should use boto.kinesis: from boto import kinesis After …
Download large file in python with requests Question: Requests is a really nice library. I’d like to use it for downloading big files (>1GB). The problem is it’s not possible to keep whole file in memory; I need to read it in chunks. And this is a problem with the following code: import requests def …
Can you "stream" images to ffmpeg to construct a video, instead of saving them to disk? Question: My work recently involves programmatically making videos. In python, the typical workflow looks something like this: import subprocess, Image, ImageDraw for i in range(frames_per_second * video_duration_seconds): img = createFrame(i) img.save(“%07d.png” % i) subprocess.call([“ffmpeg”,”-y”,”-r”,str(frames_per_second),”-i”, “%07d.png”,”-vcodec”,”mpeg4″, “-qscale”,”5″, “-r”, str(frames_per_second), “video.avi”]) …
Read a large zipped text file line by line in python Question: I am trying to use zipfile module to read a file in an archive. the uncompressed file is ~3GB and the compressed file is 200MB. I don’t want them in memory as I process the compressed file line by line. So far I …
How to read a CSV file from a stream and process each line as it is written? Question: I would like to read a CSV file from the standard input and process each row as it comes. My CSV outputting code writes rows one by one, but my reader waits the stream to be terminated …
Python regex parse stream Question: Is there any way to use regex match on a stream in python? like reg = re.compile(r’w+’) reg.match(StringIO.StringIO(‘aa aaa aa’)) And I don’t want to do this by getting the value of the whole string. I want to know if there’s any way to match regex on a srtream(on-the-fly). Asked …
