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• How do I make youtube-dl or streamlink stop after a certain period of time when downloading a live stream

  13 janvier 2020, par Programmer4Life

  I’m the unofficial historian for a popular 24/7 live feed. I wrote a script to use streamlink (fork of livestreamer) to download the stream constantly. Then i have a script to upload the captured video to YouTube as unlisted for the stream owner. I use a shell script and have the file names be dates and times.

  I’ve also used youtube-dl. For both, The maximum captured time appears to be 6 hours because it’ll stop after that amount of time. To address this, I wrote a script to restart the capture when it stops after sleeping for 30 seconds (safety in case of runaway loop) so this isn’t an issue either.

  What i am trying to do is to either set my stream capture (whether it’s youtube-dl or streamlink it doesn’t matter) to stop after a shorter interval, say 2 hours. I could also split up the file into 3 parts but i don’t know if that would require re-encoding. If it does, that’s not an option because all of this is done on a VPS with limited resources.

  The reason I am trying to split up the files or capture in a shorter time period is because 6 hours is too dang long to easily navigate a YouTube video. On mobile, trying to seek to a specific time is near impossible. Desktop isn’t much easier because you need to be very precise.

• How to let ffmpeg download partial m3u8 video without download the full ones ?

  15 octobre 2018, par 3142 maple

  I want to get a video from a m3u8 stream from range : 21:24 22:54.
  I found a answer at https://superuser.com/questions/758943/ffmpeg-cut-for-time-range , and it said I can use -ss 00:21:24.00 -t 90 to cut it.

  But I found that ffmpeg is actually download the whole video until 00:21:24.00 rather that just download 21:24 22:54 .
  How can I let it just download the 90 seconds I want ?

  The command I came up :

  ffmpeg -i "M3U8URL" -acodec copy -vcodec copy -ss 00:21:24.00 -t 90 output.mp4

• live streamming using ffmpeg for more than stream on the same time

  29 novembre 2016, par بسمة أمل

  I’m using this command to stream video in ffmpeg but when I stream more than 3 or 4 streams at the same time interruption happen although the process in my device doesn’t exceed 50%
  I tried to use ffmpeg lib for each stream but interruption still happened

  this is my command :

   ffmpeg -re -i test.mp4 -i logo.png -vcodec libx264 -pix_fmt yuv420p -vb 2000000 -g 60 
  
  -vprofile main -acodec aac -ab 128000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb 
  
  -strict experimental -filter_complex "[0][1]overlay=0:0" 
  
  -pass 1 -f mpegts udp://127.0.0.1:1234?pkt_size=1316