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• How can I generate a hls.m3u8 file using a youtube URL ?

  8 avril 2021, par User0011

  I used ffmpeg in python and I was able to generate a hls file from a local mp4 file that i had on my computer, but now I want to know if there is a way to generate the hls file using a youtube URL and give this url to the input() function of ffmpeg in python ?
Here is the code I used for the first time, I want to replace test.mp4 with a youtube URL, is it possible ?
Thanks for the help

  


  import ffmpeg_streaming
from ffmpeg_streaming import Formats, Bitrate, Representation, Size


video = ffmpeg_streaming.input('/Users/test.mp4')

_480p = Representation(Size(854, 480), Bitrate(750 * 1024, 192 * 1024))
_720p = Representation(Size(1280, 720), Bitrate(2048 * 1024, 320 * 1024))

hls = video.hls(Formats.h264(), hls_list_size=10, hls_time=5)
hls.representations(_480p, _720p)
hls.fragmented_mp4()
hls.output('/Users//hls.m3u8')


  


• How to get ffmpeg configuration similar to that of youtube for 480p and 1080p video ? I have got a function but the output quality is too low

  14 avril 2021, par prehistoricbeast

  Hey guys I am learning to develop a website that converts videos to youtube quality (or close enough) 480p and 1080p, I am not much familiar with ffmpeg and struggling with its documentation.

  


  I have these functions,

  


  video_480p      = subprocess.call([FFMPEG_PATH, '-i', input_file, '-codec:v', 'libx264', '-crf', '20', '-preset', 'medium',
                    '-b:v', '1000k', '-maxrate', '1000k', '-bufsize', '2000k','-vf', 'scale=-2:480', '-codec:a', 'aac', '-b:a',
                     '128k', '-strict', '-2', file_480p])


  


  similarly I have another function,

  


  new_video       = subprocess.call([FFMPEG_PATH, '-i', input_file, '-codec:v', 'libx264', '-crf', '20', '-preset', 'medium',
                    '-b:v', '1000k', '-maxrate', '1000k', '-bufsize', '2000k','-vf', 'scale=-2:1080', '-codec:a', 'aac', '-b:a',
                     '128k', '-strict', '-2', output_file])


  


  Both these functions, transcode the video, but returns low quality videos, Can anyone provide me with the right settings for 480p and 1080p which is similar or close to youtube quality ?

  


  Thanks

  


• How can I schedule a YouTube livestream entirely from Linux ?

  25 avril 2021, par Dale Wellman

  I have a setup on a Raspberry Pi (with its native camera) that uses a cronjob to start an ffmpeg session with its output streaming to YouTube. I re-use the same stream key each time, which is written into my ffmpeg scripts. This all works perfectly each week, automatically starting and stopping at the desired time.
However, each week PRIOR to that livestream, I have to "manually" go into YouTube Studio and "schedule" a new future event. This is easy enough, since it lets me "reuse" previous settings — all I have to change is the Title, date, and time. But I would love to figure out a way to automate that part of the process, as well. I assume it involves using the YouTube Data API, but I'm not well versed in API's, JSON, etc.
(I do have a strong Linux background, bash scripting skills, and general programming background.)

  


  My final solution just needs to :

  


  

  • create the new scheduled event (maybe 12 hours prior to going live), with Title, Date, Time, "Unlisted" status, category, and so forth — all the usual settings I do manually within Studio

  


  • retrieve the assigned URL for the upcoming stream (my script will then email that to me)

  


  


  So, basically, I'm asking for help getting started with the API, or whatever method is capable of doing this. I would prefer to code it on the same Pi that does the ffmpeg encoding (although in a pinch, I could create the schedule from another computer, even Windows). Any examples would be great.

  


  So far, all I have done is create my Google project, enable the YouTube Data API in the project, and create my API key. But I'm not sure where to go from there.