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• Downloading earlier segments from a live m3u8 playlist

  25 juillet 2016, par Zafer Cesur

  I have an .m3u8 URI from an online live-stream. As far as I know, live playlists use a sliding window instead of containing all the segments. My questions are,

  ---

  1) Is it possible to find out what the length of the window is (time or frame-wise) ? My intention is to use the playlist I have to download a live-stream starting from an earlier time.

  2) If yes, how do I get the earlier segments, i.e., how do I specify where I want to start downloading from ? I tried something like ffmpeg -ss -00:00:10 -i "in.m3u8" out.mp4, but it did not work.

  I do not have much experience in video-encoding or live-streaming, and I would appreciate any direction ! The file that I am dealing with is printed below.

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  #EXTM3U
  
  #EXT-X-TWITCH-INFO:NODE="video-edge-913b2c.jfk03",MANIFEST-NODE="video-edge-913b2c.jfk03",SERVER-TIME="1469462316.46",USER-IP="...",SERVING-ID="...",CLUSTER="jfk03",ABS="false",BROADCAST-ID="22500458080",STREAM-TIME="17374.4599299",MANIFEST-CLUSTER="jfk03"
  
  #EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="chunked",NAME="Source",AUTOSELECT=YES,DEFAULT=YES
  
  #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=3566000,RESOLUTION=1920x1080,CODECS="avc1.4D402A,mp4a.40.2",VIDEO="chunked"
  
  http://video-edge-913b2c.jfk03.hls.ttvnw.net/hls-7e8a7c/imaqtpie_22500458080_490173831/chunked/index-live.m3u8?token=id=...,bid=...,exp=1469548716,node=video-edge-913b2c.jfk03,nname=video-edge-913b2c.jfk03,fmt=chunked&sig=...
  
  #EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="high",NAME="High",AUTOSELECT=YES,DEFAULT=YES
  
  #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1760000,RESOLUTION=1280x720,CODECS="avc1.66.31,mp4a.40.2",VIDEO="high"
  
  http://video-edge-913b2c.jfk03.hls.ttvnw.net/hls-7e8a7c/imaqtpie_22500458080_490173831/high/index-live.m3u8?token=id=...,bid=...,exp=1469548716,node=video-edge-913b2c.jfk03,nname=video-edge-913b2c.jfk03,fmt=high&sig=...
  
  ...

• How do i convert (pulled from device) individual frames to a video file on linux and push it back to the same directory

  31 mars 2012, par RiASh

  First of all i have frames on my SD Card and frames are there in separate folders for each video..

  what i want to do is that i just want to make REALLY simple Java application for user(just a button to make video files) on the linux OS whose ActionEvent Handler pulls in all the individual frames and converts it to a video..deletes all the frames from the SD Card and then pushes the video file back to the same directory of SD Card..

  i wanted to know how do i pack frames into a video file on Linux(Ubuntu)..i think there is something ffmpeg but i dont know much..
  Can someone provide a example..please .. the images are named as image0000 to image9999

  and is it possible to create video file from those frames AND EVEN having sound in them using ffmpeg..?

  Can adb pull and push files without SD Card being connected..

  And finally wanted to know how do i run shell commands like adb pull, push, ffmpeg from JAVA..

  THERE ARE i think 4 QUESTIONS here but all related so i thought better ask them together..Thanks in advance ! :)

• How can I add individual thumbnails to several MKV files (possibly using ffmpeg) ? [closed]

  1er juillet 2024, par oli_vi_er

  I would like to add thumbnails to many MKV files.

  


  I know how to use MKVToolnix GUI to achieve this, but I'd need to do it for dozens of files, so I'm wondering if there's a quicker way to do it in batch.

  


  I think that it may be possible with ffmpeg, and I already have the JPEG images with the same name as the MKVs, but I don't really know how to use ffmpeg's command lines, let alone batch processing.

  


  So, is it possible to do this ?