ffmpeg need some code guidance + video in/out guidance
#NEED GUIDENCE ON REPEATED FRAME DROP
rugged path
brisk vigil
What cmd are you currently using? What is input and output type? Source is from shadow play or obs?
As a thumb rule, try reducing bitrate to find best setting corresponding to ur monitor and gfx card.
rugged path
source is from shadow play
tardy brook
Hey priyabatra.. Here's the code which I use..to output in apple prorres format. the Key here is mpdecimate which actually removes duplicate/repeated frames to give you butter smooth footage, however audio/video sync may suffer
**ffmpeg -i a.mp4 -vf mpdecimate,setpts=N/FRAME_RATE/TB -c:v prores_ks -profile:v 3 -c:a pcm_s16le b.mov **
// here replace"a.mp4" with your source file and "b.mov" would be your output in apple prores mov file
Repeated frames can be caused if your game FPS drops below 60 fps (assuming you will record at 60fps), hence the same frame might get captured twice to create a Fake/duplicate frame in your gameplay recordings. this may also happen if the Recording/capturing process gets less resources.
To achieve pure 60-60 FPS gameplay recording, try capping your FPS (in-game) to either 60 fps or double, such that GPU gets some headroom to ensure recording is done smoothly
brisk vigil
Ffmpeg can be time consuming and irritating to use via cmd line, use some other applications like handbrake.
tardy brook
as far as I am aware mpdecimate doesn't have a GUI in handbrake. Honestly ffmpeg can be far superior when it comes to this particular issue. If you happen to come across some tool which offer a good GUI for removal of duplicated frames, do let me know
brisk vigil
Not as a cmd directly but, if VRR is used handbrake does it automatically.
tardy brook
Not as a cmd directly but, if VRR is used handbrake does it automatically.
you mean variable refresh rate?? VRR??
brisk vigil
Yes
tardy brook
I don't think so buddy, you may be right but in my short little experience you need to remove a hard code duplicate frame within the sequence, changing framrate is not the question here. Or we can discuss in voice. would love to know something I don't know
brisk vigil
For sequential frames it isn't possible via handbrake or any other gui, that part ffmpeg does well, just if the conversion is automatic it handles as much as it can on its own.
tardy brook
decomb and di-interlacing are totally different concepts. This has more to do with interlaced videos that were produced for TV broad cast and DVD. In other words all TV/DVD sources are Interlaced, can be related to those TVs which came with an i after resolution.. for e.g. 720i 1080i rather than today's most used 1080p standard where p stands for progressive
brisk vigil
I thought detelecine is different and does the job, 😭😭😭 am totally wrong then relying on handbrake cmds.
tardy brook
I thought detelecine is different and does the job, 😭😭😭 am totally wrong then...
now detelecine is also a little different from decombing and di-interlace
brisk vigil
But is it correct as they have mentioned, it decimates or drops duplicate frames
rugged path
i will try in night will update
tardy brook
But is it correct as they have mentioned, it decimates or drops duplicate frames
That is with reference to 3:2 or 2:3 pulldown.
For eg.. to convert a 24 fps movie to 29.97 NTSC or 25 fps PAL a single frame (after a couple of frames) will be diveded into 2 frames by interlacing or combing or telecining.. for tv broadcast or DVDs
De interlacing, decombing, etc
these methods will try to re combine those two frames, here confusingly mentioned as duplicated.
In order to remove progressive (non - interlaced) duplicated frames, we need to use something like mpdecimate function in ffmpeg, which tries to identify if 2 consecutive frames are above 95% (or something) similar and remove one
brisk vigil
so they are different in that case. thank you for sharing info. I also checked some articles again to understand the difference, detelecine is meant to be used as a filter.
rugged path
brisk vigil
check input file path
rugged path
how do i change it ?
tardy brook
ensure you give full name.. be it cod1.mp4 or cod1.mov or whatever... and also ensure that output name is different from input name.. make it cod2.mov or cod3.mov or something
brisk vigil
No links 😭😭