VideoHelp Forum

+ Reply to Thread
Results 1 to 4 of 4
Thread
  1. Member
    Join Date
    May 2016
    Location
    Lithopolis, OH United States
    Search Comp PM
    Lets say you have an old video file that you need to update and/or remaster, what methods should you use to remaster that that video? Should you mux the file or should reencode it with tools such as FFMPEG and AVIsynth?
    Quote Quote  
  2. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    Remuxing the file doesn't change the video in any way, it just repackages it.
    If you want to "remaster" (for example, change the size, denoise, fix the color, etc,etc) you have to re-encode

    FFmpeg can be used to remux or re-encode, Avisynth implies re-encode because it passes uncompressed
    frames to the host program (eg. Virtualdub, StaxRip, Ripbot264, Xmedia Recode, etc,etc)

    This is a pretty basic understanding, something you should get clear
    Quote Quote  
  3. Member
    Join Date
    May 2016
    Location
    Lithopolis, OH United States
    Search Comp PM
    I see. So you can restore old files using those programs?
    Quote Quote  
  4. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    Yes. FFmpeg has some filters built in (eg. denoise), Avisynth has some basic internal functionality to manipulate
    video and audio but it's real strength comes from the hundreds of external filters (which have to be downloaded
    separately and stored in the plugins folder) written for all the special
    situations that arise with videos; quite a few of them are for restoring and fixing video problems

    external filters:
    http://avisynth.nl/index.php/External_filters
    internal functions of Avisynth:
    http://avisynth.nl/index.php/Category:Internal_filters
    Quote Quote  



Similar Threads