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• How to replace all frames of video to one image ?

  8 février 2018, par YuriyPryyma

  I have some film
  I want to replace all frames from that video to my static image.
  So that video duration, resolution(width, height), sound and other properties stay the same.

• Creating personalized video from user submitted pictures and data

  18 décembre 2016, par Rajat Singhal

  Can someone guide me towards what technology to use to create personalized video from user submitted pictures and data.. The process has to be automated, as in server must be able to create a downloadable video from photos and text submitted by user..

  So the process will probably be like one video will be created by a hired artist, with placeholders where the user submitted pictures and text will fit in. Now with user submitted data video can be created and downloaded from the website..

  An example can be the videos created by facebook now-a-days on your birthday or year end. They consist some of your photos, some text and have a common video theme.. You can view one here http://newsroom.fb.com/news/2016/12/facebook-2016-year-in-review/

  One way I’ve found is to write the video code in html5 and then record it with phantomjs and ffmpeg.. http://mindthecode.com/recording-a-website-with-phantomjs-and-ffmpeg/

  But it seems a bit unnatural way of doing it.. And also I think not a lot of good artists are out there who can create the video theme in html5..

• FFMPEG : Add additional audio track to video file

  29 décembre 2016, par Lukas

  I have two video file with the following streams :

  File 1 :

  Stream #0:0(deu) : Audio : aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 126 kb/s (default)
  Stream #0:1(deu) : Audio : ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s
  Stream #0:2(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 4971 kb/s, 23.98 fps, 23.98 tbr, 2997 tbn, 5994 tbc (default)
  Stream #0:3 : Video : mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 480x480 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  

  File 2 :

  Stream #0:0(eng) : Audio : aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 126 kb/s (default)
  Stream #0:1(eng) : Audio : ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 384 kb/s
  Stream #0:2(eng) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 4925 kb/s, 23.98 fps, 23.98 tbr, 23976 tbn, 47952 tbc (default)
  Stream #0:3(eng) : Subtitle : eia_608 (c608 / 0x38303663), 1920x1080, 0 kb/s
  Stream #0:4 : Video : mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 480x480 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  

  Both files have exactly the same video content , but the first video has a german audio track and the second one an english audio track.

  How can I extract the audio track from the german video file and add it to the english one, without losing the english subtitles and being able to choose between these audio tracks in a media player ?

  I searched about this and I found multiple answers to similar questions, but none of them worked : Some included only one audio track and some played both of them at the same time.

  _{I’m not sure if this question should be asked on Super User, but as there are alrealy many questions about ffmpeg on Stack Overflow, I asked it here.}