Maintaining display size (not storage size) as the default for imported mp4s

[Ken Guy]

In older versions of Subler, the display size of files imported from Avidemux were maintained. In the latest version, the storage size is retained. I know that a new display size can be set by unticking the ‘preserve aspect ratio’ box and setting a new aspect ratio for the display size each time, but this is exceedingly onerous when dealing sequentially with multiple files. Is there any way of maintaining display size as the default, as in older versions of Subler? P.S. I am using Monterey on a MacBook Pro (13-inch).

[Damiano Galassi]

Can you share a file from Avidemux? A short one will be enough.

[Ken Guy]

Dear Damiano

Thanks for getting back to me so promptly.

This is a link to an Avidemux file on my server that gives me problems when I use the latest versions of Subler, together with a screen print of media details.

https://os5.mycloud.com/action/share/5dba631b-e98b-4ea4-87c3-b2b10a373dc8

With old versions of Subler (e.g. 1.6...), the 4:3 aspect ratio is preserved, but it isn't with more recent 1.7... versions.

Can I also take this opportunity to thank you for an amazing product - I, and many others I’m sure, would be truly lost without it.

Best wishes

Ken

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[Damiano Galassi]

Which version of 1.6 was working?

[Damiano Galassi]

The issue with that file is that the anamorphic is not signalled at the container level, only in the h.264 bitstream. So Subler copies the container info and put a 1:1 pixel aspect ratio box.

[Ken Guy]

Dear Damiano

Subler 1.6 (November 19 2019) produces an output file with an aspect ratio of 4:3, the same as the input file. Subler 1.7.2 produces an output file with a ratio of 0.948:1 (the same as the file storage ratio).

Mediainfo details are shown below:

Pre-Avidemux File

Pre-Subler File from Avidemux

Post-Subler 1.6 (Nov. 19 2019) File

Post-Subler 1.7.2 File

Cheers

Ken

[Damiano Galassi]

I could change it to not write the past atom when the aspect ratio is 1:1. But Avidemux should really be fixed to produce a better mp4 file.

[Ken Guy]

I’ll try to contact the authors of Avidemux and hope they are as responsive as you. Thanks!

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