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• Can´t convert .mp4 file to .mjpeg file with ffmpeg

  19 février 2018, par Herr HupfDohle

  I use ffmpeg to convert a .mp4 file to a .mjpeg file and I fail doing so.
  What i tried so far :
  Converting directly from .mp4 to .mjpeg with one of these :

      "ffmpeg -i input.mp4 output.mjpeg"
  
      "ffmpeg -i input.mp4 -framerate 25 output.mjpeg"

  Getting all the individual images of my video (which worked fine) and put them together to a .mjpeg file did not work as well.

      "ffmpeg -i input.mp4 image%d.jpeg"
  
      "ffmpeg -f image2 -i image%d.jpeg output.mjpeg", or
  
      "ffmpeg -f image2 -i image%d.jpeg -framerate 25 output.mjpeg"

  "Solutions" like the following one did not work, cause I need a file extension .mjpeg so -c:v mjpeg is not enough cause I end up with sth. like .mov !

  "ffmpeg -i input.mov -c:v mjpeg -q:v 3 -huffman optimal -an output.mov"

  To view my files I use vlc player.

  I always end up with a .mjpeg file which has the length of 10 seconds and only shows the very first image of my 4000 pictures.

• FFMPEG : new m3u8 playlist in every hour from the same segmented stream

  23 mars 2018, par iPog

  I’m using the latest Windows build of FFMPEG (by Zeranoe).

  Currently I create 2 outputs from the same raw live video input. I use the tee pseudo-muxer to give the user the following outputs :

  • PRIMARY OUTPUT : transcoded live stream ; using the HLS or the segment muxer ; 14 pieces of 10-second-long segments on a ramdisk.
  • SECONDARY OUTPUT : from the same transcoding I store every segment on the hard drive ; to make the hard drive versions watchable, I create m3u8 playlists with an automated batch script in every hour ; all individual playlist files contain 1 hour of content.

  Is it possible to achieve the same result with FFMPEG only ? I.e. the secondary output should be able to finish the current m3u8 playlist, and start a new one with a new filename at every hour o’clock.

  (My batch-based solution works fine, so it isn’t that important, but it would be nice to know if it is possible at all. I could not find a similar approach in the documentation/wiki.)

• ffmpeg - split video into multiple parts with different duration

  16 avril 2023, par Pierrou

  in order to split very old episodes from my VHS rips, I would like to split video files into multiple parts according to timestamps in csv file :

  


  file1;00:01:13.280;00:14:22.800;Part 1
file1;00:14:41.120;00:26:05.400;Part 2
file1;00:26:23.680;00:39:41.720;Part 3
file1;00:40:00.000;00:51:43.280;Part 4
file1;00:53:50.200;01:06:15.680;Part 5
file1;01:06:33.960;01:20:58.400;Part 6
file1;01:21:16.680;01:34:57.320;Part 7
file1;01:35:15.600;01:48:21.640;Part 8
file1;01:49:15.160;01:51:54.720;Part 9
file2;00:01:13.280;00:13:30.960;Part 1
file2;00:13:49.240;00:29:04.240;Part 2
file2;00:29:22.520;00:43:24.080;Part 3
file2;00:43:42.360;00:58:12.560;Part 4
file2;01:00:03.880;01:12:52.840;Part 5
file2;01:13:11.120;01:24:13.280;Part 6
file2;01:24:31.560;01:51:12.720;Part 7
file2;01:52:06.840;01:54:55.640;Part 8


  


  So how can I have multiple lines like those ?

  


  ffmpeg -i file1.avi -c copy -ss 00:01:13.280 -to 00:14:22.800 file1/part1.avi


  


  So I would like to keep each parts in individual files and remove everything else.