1.8.3: Unable to Open AVIF Video Files (AVIF Images Open Correctly)
Posted: Thu Jan 23, 2025 9:54 am
Subject: 1.8.3: Unable to Open AVIF Video Files (AVIF Images Open Correctly)
XnView: MP 1.8.3 - 64-bit
OS: Windows 11 - 64-bit
Short Description of the Problem:
XnView MP cannot open AVIF video files, while AVIF image files open without any issues. Attempting to open an AVIF video file results in the error message: "File can't be loaded!"
Effect:
Users cannot view or interact with AVIF video files in XnView MP, limiting the software's functionality for handling AVIF format files.
To Reproduce:
Open XnView MP (version 1.8.3, 64-bit).
Attempt to open an AVIF video file (e.g., xnviewmp_qwPzQ9rJ58.avif).
Observe the error message: "File can't be loaded!"
Actual Behaviour (Bug):
XnView MP fails to load AVIF video files and displays an error message.
Expected Behaviour:
XnView MP should be able to open and display AVIF video files, similar to how it handles AVIF image files.
Additional Information:
XnView MP Version: 1.8.3 (64-bit)
Operating System: Windows 11 (64-bit)
File Example: The issue occurs with the file xnviewmp_qwPzQ9rJ58.avif.
Note: AVIF image files open without any issues.
Request:
Please investigate this issue and provide a fix or workaround for opening AVIF video files in XnView MP. If additional information or files are needed, please let me know.
Thank you for your attention to this matter.
XnView: MP 1.8.3 - 64-bit
OS: Windows 11 - 64-bit
Short Description of the Problem:
XnView MP cannot open AVIF video files, while AVIF image files open without any issues. Attempting to open an AVIF video file results in the error message: "File can't be loaded!"
Effect:
Users cannot view or interact with AVIF video files in XnView MP, limiting the software's functionality for handling AVIF format files.
To Reproduce:
Open XnView MP (version 1.8.3, 64-bit).
Attempt to open an AVIF video file (e.g., xnviewmp_qwPzQ9rJ58.avif).
Observe the error message: "File can't be loaded!"
Actual Behaviour (Bug):
XnView MP fails to load AVIF video files and displays an error message.

Expected Behaviour:
XnView MP should be able to open and display AVIF video files, similar to how it handles AVIF image files.
Additional Information:
XnView MP Version: 1.8.3 (64-bit)
Operating System: Windows 11 (64-bit)
File Example: The issue occurs with the file xnviewmp_qwPzQ9rJ58.avif.
Note: AVIF image files open without any issues.
Request:
Please investigate this issue and provide a fix or workaround for opening AVIF video files in XnView MP. If additional information or files are needed, please let me know.
Thank you for your attention to this matter.