Re: [FFmpeg-user] setdar ratio - syntax

2018-11-24 Thread Kieran O Leary
Hi, On Sat, Nov 24, 2018 at 11:54 PM Ben Barker wrote: > > I have previously, and for some years, used the scale and setdar filters as > below: > > ffmpeg -i -vf scale=352:288,setdar=352:288 > This is how I would use it as well so I'm surprised to see this change. > In the example above, the d

[FFmpeg-user] setdar ratio - syntax

2018-11-24 Thread Ben Barker
I have previously, and for some years, used the scale and setdar filters as below: ffmpeg -i -vf scale=352:288,setdar=352:288 In the example above, the dar would be set to the ratio 355/288, with the setdar passed a ratio separated by a colon. I built ffmpeg from git today, the first time in a

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Daniel Senderowicz
How do I set the -r entry for my case? What is top-posting? Am I doint something wrong? On Sat, Nov 24, 2018 at 3:33 PM Carl Eugen Hoyos wrote: > 2018-11-25 0:02 GMT+01:00, Daniel Senderowicz < > daniel.senderow...@gmail.com>: > > What I found on the internet are cases of converting 24fps to 30

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Carl Eugen Hoyos
2018-11-25 0:02 GMT+01:00, Daniel Senderowicz : > What I found on the internet are cases of converting 24fps to 30fps, but my > case is different. These movies have been filmed at 18fps, the digitizing > was done at 20fps, so how do I handle the arithmetic for this case? You may be right that the

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Daniel Senderowicz
What I found on the internet are cases of converting 24fps to 30fps, but my case is different. These movies have been filmed at 18fps, the digitizing was done at 20fps, so how do I handle the arithmetic for this case? On Sat, Nov 24, 2018 at 2:55 PM Carl Eugen Hoyos wrote: > 2018-11-24 23:48 GMT

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Carl Eugen Hoyos
2018-11-24 23:48 GMT+01:00, Daniel Senderowicz : > So how should I do that with MEncoder? I have asked for an example in this ticket (and there is one): https://trac.ffmpeg.org/ticket/2602 An alternative is to google for "mencoder soft telecine". Please do not top-post here, Carl Eugen __

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Daniel Senderowicz
So how should I do that with MEncoder? Thanks On Sat, Nov 24, 2018 at 2:39 PM Carl Eugen Hoyos wrote: > 2018-11-24 20:06 GMT+01:00, Daniel Senderowicz < > daniel.senderow...@gmail.com>: > > I just purchased a film scanner for my very old 8mm and super8 movies. > This > > machine (Wolverine pro)

Re: [FFmpeg-user] frame rate conversion

2018-11-24 Thread Carl Eugen Hoyos
2018-11-24 20:06 GMT+01:00, Daniel Senderowicz : > I just purchased a film scanner for my very old 8mm and super8 movies. This > machine (Wolverine pro) generates a MP4 file at 20fps (only option). I > would like to convert these files to 30fps (29.97?) so I can burn DVDs. I believe the correct wa

[FFmpeg-user] frame rate conversion

2018-11-24 Thread Daniel Senderowicz
I just purchased a film scanner for my very old 8mm and super8 movies. This machine (Wolverine pro) generates a MP4 file at 20fps (only option). I would like to convert these files to 30fps (29.97?) so I can burn DVDs. My math is a bit fuzzy now, for example the super8 films have a frame rate of 18

Re: [FFmpeg-user] Video stabilization with vid.stab (libvidstab) under Max OSX Mojave

2018-11-24 Thread kumowoon1025
Not sure if this is the problem, but accuracy >= shakiness, according to the description. -- Sent from: http://www.ffmpeg-archive.org/ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe,

[FFmpeg-user] Merging VP9 files, without audio

2018-11-24 Thread Morten W. Petersen
Hi there. I have a project which takes images using a webcam, called surveil: https://github.com/morphex/surveil These images are compiled into a (short) video, and then mailed. Now I'd like to add a feature, where videos are downloaded, and scanned for motion. So these videos have to be merge