It is a set of tools to create, alter and inspect Matroska files. Thanks and best….Free Download MKVToolNix latest standalone offline installer for macOS. The reason I asked about the options is for the case where it is an equipment/HW limitation or an encoding bug and some repairs would need to be done on older encodes - I’ve already developed a Perl script that uses mkvinfo and mkvmerge and updates the VDW and VDH values based on the “Video Pixel Width” and “Video Pixel Height” from the mkv header. I’m trying to figure out if this is an equipment/HW limitation, an encoding bug, or a lack of understanding on my part. Go to the 2 most recent posts at the bottom - August 24.Īny insights are very much appreciated. Here is a post where I describe the details with links to work files, etc. (Do these big values 11418 x 6237 seem normal - do they make sense?) The cropped video is 718 wide and 462 high, and with a PAR of 32/27 gives the same aspect ratio as the big numbers above. This will give the proper aspect ratio of (almost) 1.85, but I think these “big” values can cause problems with TVs and other HW because the equipment isn’t expecting numbers that big. The reason I ask is because I have a widescreen mpeg2 video, that, after being cropped and encoded to mpeg4, shows a VDW of 11418 and a VDH of 6237 via the MKVToolNix header editor. (I’m assuming -aspect-ratio can be passed as 16x9, 4x3, 1.85, 2.40, etc., but I’m not sure what values can be passed for -aspect-ratio-factor.) => Is “Video Display Unit” (VDU) set based on the values for “Video Display Width” (VDW) and “Video Display Height” (VDH) passed with the -display-dimensions option? Or maybe based on whether the -aspect-ratio option or the -aspect-ratio-factor option was used.
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