Fixing osx video codec Errors: Step-by-Step Guide

By / March 2, 2023

The error states: Fail to decode video codec: osx- osxvideocodec- 1.0.1.4- 64.dmg.
> I have the same problem. This is a 64 bit install and I’m trying to watch > a .mov file from my iPhone 6S Plus. iTunes opens the file but with > audio but no video. This error happens on this file and on no others.
In order to solve the problem, we need to install QuickTime, and for that, we need to add the Apple Developer Program, but before that, we need to install some prerequisites.

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    Check Video Codec support

    1. Open Final Cut Pro > click on the Apple menu > select System Preferences
    2. Click Displays, then click the Advanced button
      Click Displays, then click the Advanced button
    3. Select File > Get Info
    4. Check the codec drop-down menu to make sure Video Codec is None

    Install codec pack

    1. Codec pack contains all the necessary codecs a media player needs to encode and decode media.
      Codec pack contains all the necessary codecs a media player needs to encode and decode media.
    2. Download and install VLC media player.
    3. Run VLC media player.
    4. Select Media > Convert/Save.
    5. Select Convert/Save.
      Select Convert/Save.
    6. Select a format.
    7. Click on Codec Pack tab.
    8. Click on Codec Pack Installer.
    9. Select VLC Codec Pack.
    10. Click Next.
    11. Click Install.
      Click Install.

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  • 1. Download and install ASR Pro
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    • Install VLC

    1. The first thing you need to do is to install VLC.
      The first thing you need to do is to install VLC.
    2. VLC is a free media player that supports various media formats.
    3. Download and install VLC media player from the following link.
    4. Download VLC media player.
    5. Run the downloaded setup file.
      Run the downloaded setup file.
    6. Follow the onscreen instructions to complete the installation.

    Install QuickTime

    1. Go to the official Apple website to download the QuickTime application.
      Go to the official Apple website to download the QuickTime application.
    2. Install the app on your PC.
    3. Launch the QuickTime app on your PC.
    4. Open your QuickTime settings by clicking File and selecting Preferences.
    5. Click the File Types tab.
    6. Click Add under the Movies section.
    7. Select Apple ProRes 422 (*.mov).
    8. Click Add.
      Click Add.
    9. Close the QuickTime Preferences window and restart the QuickTime app.
    10. Open the QuickTime app on your PC.
      Open the QuickTime app on your PC.
    11. Open a file that is having issues.
    12. Click the icon that looks like a gear icon.
    13. Select Codec from the drop-down menu.
    14. Select ProRes 422 from the Codec menu.
    15. Click the OK button to save your changes.
      Click the OK button to save your changes.
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    Delete Audio/Video Cache

    1. Open Finder, then select Applications from the menu bar at the top.
      Open Finder, then select Applications from the menu bar at the top.
    2. Locate the QuickTime application, then right-click on it and select Get Info from the menu.
    3. If your computer came with a preinstalled version of QuickTime, go to System Prefs, then Applications, then find and delete the file called “QuickTime Cache”.
    4. Now, you need to delete the “Apple Application Support” folder. To do that, open Finder again, then select Go from the menu bar, then Library.
    5. Go to Preferences.
      Go to Preferences.
    6. Choose Library, then “Show Library Folder”.
    7. Go to “Application Support”, then “Apple”, then “QuickTime”, then “Preferences”.
    8. Open the Caches folder and click on “Delete Caches”.
    9. Restart your computer
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