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• Play video using HTML5 video tag

  21 janvier 2014, par user3217695

  Hi i need to display video in all the browsers using html5.

  I am uploading the file and creating html structure and it plays only mp4 format video, but not other uploaded formats, and i use command line to convert files but the converted files doesn't play in video tag.

  For conversion I use ffmpeg video conversion from one to webm format. Conversion works, but viedos don't play.

  Please find me ffmpeg code, which converts all videos to webm, so i can play the converted video using html5.

• ffmpeg converting video to images while video file is being written

  15 octobre 2015, par user3398227

  Hopefully an easy question for an ffmpeg expert !

  I’m currently converting large (+6GB) mpeg video into an image sequence - which is working well using the below ffmpeg command :

  ffmpeg -i "input.mpeg" -vf - fps=fps=2 -f image2 -qscale 1 -s 1026x768 "output%6d.jpg"

  however i have to wait for the file to finish being written to disk before i kick off ffmpeg - but this takes a good hour or so to finish writing, but what i’ve noticed is that ffmpeg can start reading the file while its being written to disk - the only snag here is it gets to the end of the file and stops before the file has finished being written...

  Question is, is there a way that ffmpeg can convert to an image sequence at the same pace the video is being written (and not exit out ?)... or know to wait for the next frame to be written from the source. (unfortunately the input doesn’t support streaming, I only get a network drive and file to work off.. ) I thought i read somewhere that ffmpeg can process at the video frame rate but cant seem to find this command for love or money in the doco !!

  Thanks !

• Demuxing .AVI Video Muxed using mpegts on 3 Video Streams

  11 juin 2022, par nwf1115

  I have output from a Python program that comes out as a single .AVI that contains 3 video streams, however, it seems that they are all combined. The videos are not concatenated, but they are interlaced. The code that produces it is pretty abstract and the only thing I can tell is that they used Gstreamer to combine the videos. I can pick out H.264 encoding and mpegts and output as an .AVI. Using ffprobe on the file I get the following output :

  


  Input #0, mpegts, from 'output.avi':
  Duration: 00:05:00.07, start: 12045.450000, bitrate: 33695 kb/s
  Program 1
    Stream #0:0[0xdd]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), >1920x1080 [SAR 1:1 DAR 16:9], 15 fps, 15 tbr, 90k tbn, 30 tbc


  


  I'm needing to separate the videos contained in this .AVI file, but I'm having trouble doing so using ffmpeg since there are not separate streams for each video.

  


  Does anyone have any tips on how to do this using ffmpeg or gstreamer ?

  


  Update : Upon further experimentation, it does not seem that the frames are interlaced, rather the stream of data was in some way, combined in some manner.