gtwhe.blogg.se - Puppy linux ffmpeg

user specifies a 'threshold duration' for the duplicates.

In that case, I'm guessing we'd have to run something like:. but knowing that (complicated formatted) information, how can we re-organize the video without executing multiple runs of ffmpeg to extract 'slices' of video for re-combining later?

That reference I quoted uses a command that shows which frames 'mp_decimate' will remove when it considers them to be 'the same', viz:- ffmpeg -i SAMPLE.flv ^. vf mpdecimate,setpts=N/FRAME_RATE/TB DEC_SAMPLE.mp4 This seems to be achievable using ffmpeg with an 'mp_decimate' option, viz:- ffmpeg -i SAMPLE.flv ^. If we simply remove the duplicate frames, the 'pacing' of the video is lost, and what used to take, maybe, 5 seconds to display, now takes a fraction of a second, giving a very jerky, unnatural motion, although there are no duplicate images in the video. and how does our approach change if the 'duplicates' are NOT the same to ffmpeg but LOOK more-or-less the same to the viewer? How can we deal with the duplicate frames?. So this means we have segments of the captured video where the image doesn't change at all (to the naked eye, anyway). Owing to a poor internet connection, a "single frame" can be displayed for an extended period (the 'X' characters being an (almost) exact copy of the immediately previous frame). where each character position represents a (sequence of) frame(s).

Let's say the actual 'display' that is being captured looks like this:- 123456789 XXXXX 1234567 XXXXXXXXXXX 123456789 XXXXXXX There's an instance of ffmpeg running that is capturing a region of the (Windows) desktop into a video file, viz:- ffmpeg -hide_banner -y -f dshow ^

In this case, we're talking about a traffic camera video stream, for example. However, they have some problems with times in the video where the display is 'motionless'.Īs an example, let's say we have some web site that streams a live video into, say, a Flash video player/plugin in a web browser. I have some hundreds of video clips that have been created under both Windows and Linux using both ffmpeg and other similar applications. I've checked a few links here, for example:įfmpeg - remove sequentially duplicate frames and how it affects what I'm trying to do in my manipulations. Hence, I'm not too flash with all the language folk often use. First of all, I'd preface this by saying I'm NO EXPERT with video manipulation,Īlthough I've been fiddling with ffmpeg for years (in a fairly limited way).