1.3.1 File can't be loaded!

[XNViewMPUser]

XnView: MP 1.3.1 - 64 bit
OS: Windows 64bit

When trying to open gif file, error message received is "File can't be loaded!"

Effect: File can't be loaded!

To reproduce:
1. Do not be in a work environment.
2. Save the file located at "view-source:https://celebjihad.com/celeb-jihad/php/jennifer_aniston_nude_masturbation.gif" (NSFW!)
3. Attempt to open the saved .gif file.

Actual behaviour (bug): File can't be loaded!

Expected behaviour: File can be loaded!

[user0]

oh my...

When trying to open gif file, error message received is "File can't be loaded!"

this is video file, not an image
the site is too shitty to bother with correct file extention while saving

Code: Select all

General
Format                         : MPEG-4
Format profile                 : Base Media / Version 2
Codec ID                       : mp42 (mp42)
File size                      : 7.90 MiB
Duration                       : 12 s 957 ms
Overall bit rate               : 5 114 kb/s
Codirector                     : codirector
Production studio              : studio
ContentType                    : Unknown Type
Encoded date                   : UTC 2022-07-29 17:36:03
Tagged date                    : UTC 2022-07-29 17:36:03
FileExtension_Invalid          : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L3.1
Format settings                : CABAC / 4 Ref Frames
Format settings, CABAC         : Yes
Format settings, Reference fra : 4 frames
Format settings, GOP           : M=3, N=30
Muxing mode                    : Container profile=Baseline@3.0
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 12 s 929 ms
Bit rate                       : 5 011 kb/s
Width                          : 976 pixels
Height                         : 732 pixels
Display aspect ratio           : 4:3
Frame rate mode                : Constant
Frame rate                     : 23.976 (24000/1001) FPS
Standard                       : Component
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.293
Stream size                    : 7.72 MiB (98%)
Language                       : English
Color range                    : Limited
Color primaries                : BT.709
Transfer characteristics       : BT.709
Matrix coefficients            : BT.709
Codec configuration box        : avcC

Audio
ID                             : 2
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : mp4a-40-2
Duration                       : 12 s 957 ms
Bit rate mode                  : Constant
Bit rate                       : 96.0 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 152 KiB (2%)
Title                          : Stereo
Language                       : English
Default                        : Yes
Alternate group                : 1

on the other hand, it looks like XnView does not determine file's content by signature, only by extension
once ext changed back to .mp4 XnView can play file with no issues

[XNViewMPUser]

You are correct, thank you for your aid.