Hey Guys,

I use the software Kdenlive in Archlinux OS to transcode a 1 hour of video (1:12 :10) in Mpeg2 format in 1440x1080px 50i to DNxHD120 1920x1080 25p. Kdenlive print those parameters in the transcode's window (ffmpeg) :

Code: Select all

-s 1920x1080 -r 25 -vb 120000k -threads 0 -vcodec dnxhd -acodec pcm_s16le -ar 48000 %1.mov

. The problem is : the final video is more shorter (00:53:35) and the video and audio is not synchronized. Do you know how resolve this issue?

Thank a lot

PeterPAN

Archlinux
5.12.5-arch1-1
CPU : i5-3470 , 3.2GHz
RAM : 8Go
GPU : Radeon RX 570
Kdenlive : 21.04.1


EDIT : I tried with DNxHD 120 50i but the result is same
RE EDIT : AppleProres is same

Hello,

I success to resolve alone the problem : use the codec 'Remux MPEG2 PS/VOB' or those parameters from ffmpeg : '-vcodec copy -acodec copy %1.mpg'

peterpanofthesun wrote:I success to resolve alone the problem : use the codec 'Remux MPEG2 PS/VOB' or those parameters from ffmpeg : '-vcodec copy -acodec copy %1.mpg'

I am glad you found a solution to your problem. But unless you do some video/audio editing using kdenlive just to convert your videos to a different format seems a complicated way. There are several GUIs for ffmpeg around, WinFF being one of them with several presets. Also Handbrake does a very good job at reducing file size while keeping quality high.
Just a few thoughts ...