Re: [FFmpeg-user] sntsc

2024-01-07 Thread Andrew Randrianasulu
пн, 8 янв. 2024 г., 09:13 Mark Filipak : > On 1/8/24 00:26, Andrew Randrianasulu wrote: > > пн, 8 янв. 2024 г., 05:14 Mark Filipak : > >> What is it that you want to know? > >> > > > > I think I like to try and see bigger picture behind acronyms. > > What acronyms? > SAR, DAR, PAR . > > A

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Jim DeLaHunt
On 2024-01-07 20:02, Mark Filipak wrote: I don't think a synthetic video that ffmpeg creates is going do the job. I'll pass.… As you wish.  If a synthetic video won't do the job, then you can find an easily accessible video which does, or share your test video where others can retrieve it. W

Re: [FFmpeg-user] sntsc

2024-01-07 Thread Mark Filipak
On 1/8/24 00:26, Andrew Randrianasulu wrote: пн, 8 янв. 2024 г., 05:14 Mark Filipak : What is it that you want to know? I think I like to try and see bigger picture behind acronyms. What acronyms? At least this page explains how some 640*480 files might be born (it should be 486, but som

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Andrew Randrianasulu
пн, 8 янв. 2024 г., 07:02 Mark Filipak : > On 1/7/24 22:12, Jim DeLaHunt wrote: > > > For instance, this command: > > > > > ffmpeg -f lavfi -i "testsrc" -to 1:00 testpat.m2ts > > > > generates a 60-second video with a test pattern. Anyone with recent > FFmpeg can generate a video like > > this,

Re: [FFmpeg-user] sntsc

2024-01-07 Thread Andrew Randrianasulu
пн, 8 янв. 2024 г., 05:14 Mark Filipak : > On 1/7/24 17:34, Andrew Randrianasulu wrote: > > > > Well, we (cinelerra-gg users/hackers/maintainers) run into aspect ratio > > issues too , and I tried to demistify it for myself ... only to run into > > much more complex explanation at > > > > https://

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Mark Filipak
On 1/7/24 22:12, Jim DeLaHunt wrote: For instance, this command: > ffmpeg  -f lavfi -i "testsrc" -to 1:00 testpat.m2ts generates a 60-second video with a test pattern. Anyone with recent FFmpeg can generate a video like this, though perhaps not identical. If you use this as your "mother" vid

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Jim DeLaHunt
On 2024-01-07 18:54, Mark Filipak wrote: On 1/7/24 20:24, Jim DeLaHunt wrote: Also, what does "h:\BDMV\STREAM\00305.m2ts" refer to? That's the mother video from which the clone and sons are made. Is that a standard video which I can get a copy of somewhere? Nope. That presents an obstac

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Mark Filipak
On 1/7/24 20:24, Jim DeLaHunt wrote: On 2024-01-06 19:24, Mark Filipak wrote: On 1/6/24 17:20, Jim DeLaHunt wrote: But what I am missing here is a concise problem statement. I'll work hard to implement all your suggestions. They are good and I appreciate the help. I've not done this sort of

Re: [FFmpeg-user] sntsc

2024-01-07 Thread Mark Filipak
On 1/7/24 17:34, Andrew Randrianasulu wrote: Well, we (cinelerra-gg users/hackers/maintainers) run into aspect ratio issues too , and I tried to demistify it for myself ... only to run into much more complex explanation at https://lurkertech.com/lg/pixelaspect/ I'm sorry, I couldn't get past

Re: [FFmpeg-user] Towards better trims & concatenations

2024-01-07 Thread Jim DeLaHunt
On 2024-01-06 19:24, Mark Filipak wrote: On 1/6/24 17:20, Jim DeLaHunt wrote: But what I am missing here is a concise problem statement. There are many errors. In that case you should file many bug reports. Each report should describe one problem.  Maybe you can include multiple test cases

Re: [FFmpeg-user] sntsc

2024-01-07 Thread Andrew Randrianasulu
чт, 28 дек. 2023 г., 08:54 Kieran O Leary : > Hi Mark > > On Wed 27 Dec 2023 at 08:53, Mark Filipak > wrote: > > > On 12/27/23 01:58, Kieran O Leary wrote: > > > On Tue 26 Dec 2023 at 22:53, Mark Filipak > > >> Oh, no! Mister Billipedia! Hahahaha... (where people who are as ill > > >> informed