Answers.Body: <p>In the end, I made it work just as posted above, by installing the Haali Media Splitter. I have seen posts by people who say that this software is needed to process MP4 files.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-07-04T01:09:19.730Z
Answers.LastActivityDate: 2016-07-04T01:09:19.730Z
Answers.UserDisplayName: rfm
Answers.Body: <p>You'll have to use another source filter, such as <a href="http://avisynth.nl/index.php/FFmpegSource" rel="nofollow">FFMS2</a> or <a href="http://avisynth.nl/index.php/LSMASHSource" rel="nofollow">LSMASHSource</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-07-03T07:29:20.693Z
Answers.LastActivityDate: 2016-07-03T07:29:20.693Z
Answers.UserDisplayName: Gyan
Body: <p>(Total beginner) Trying to process an MP4 file using an AviSynth script, as follows:
      DirectShowSource(inputFile, fps=25, convertfps=true, logfile=logFile)</p>
  
  <p>Error message: "DirectShowSource: couldn't open file SomeFile.mp4. Cannot play back the file. The format is not supported."</p>
  
  <p>The file is valid, i.e. it can be played in a video player.</p>
  
  <p>Using Windows 10 64-bit, and AviSynth 2.60</p>
  
  <p>How can I process this file using AviSynth?</p>
  
Tags: <mp4><windows>
Title: AviSynth mp4 Not Supported
UserDisplayName: rfm
ThreadText: # AviSynth mp4 Not Supported
  
  (Asked by: username_0 on 2016-07-02)
  
  (Total beginner) Trying to process an MP4 file using an AviSynth script, as follows:
  DirectShowSource(inputFile, fps=25, convertfps=true, logfile=logFile)
  
  Error message: "DirectShowSource: couldn't open file SomeFile.mp4. Cannot play back the file. The format is not supported."
  
  The file is valid, i.e. it can be played in a video player.
  
  Using Windows 10 64-bit, and AviSynth 2.60
  
  How can I process this file using AviSynth?
  
  **Tags:** mp4, windows
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2016-07-04. Score: 1
  
  In the end, I made it work just as posted above, by installing the Haali Media Splitter. I have seen posts by people who say that this software is needed to process MP4 files.
  
  
  ---
  
  ### Answer by username_1 on 2016-07-03. Score: 0
  
  You'll have to use another source filter, such as [FFMS2](http://avisynth.nl/index.php/FFmpegSource) or [LSMASHSource](http://avisynth.nl/index.php/LSMASHSource)
  
  
  ---
  
  