[FFmpeg-user] Attempting to make a preservation copy of a Nokia Cellphone video (frame rate)

Dave Rice dave at dericed.com
Tue Sep 30 15:10:41 CEST 2014

On Sep 29, 2014, at 9:35 AM, William Lowry <wlowry77 at gmail.com> wrote:

> Hi, I'm attempting to make an FFV1/PCM preservation copy from an H.263/AMR
> donated video.The original video has variable frame rate and I am unable to
> accurately reproduce this. I have the same frame count at the end but the
> frame timestamps and overall duration are different.
> Console output below:
> ffmpeg started on 2014-09-29 at 14:26:27
> Report written to "ffmpeg-20140929-142627.log"
> Command line:
> ffmpeg -i "C:\\Digital Weekend Videos\\helen\\testing\\nokia1.MOV" -threads
> 0 -acodec pcm_s16le -vcodec ffv1 -level 3 -coder 1 -context 1 -g 1 -slices
> 24 -slicecrc 1 -vsync 0 -report "C:\\Digital Weekend
> Videos\\helen\\testing\\nokia1_FFV1.MOV"

Have you tried putting -vsync 0 before the input?
Dave Rice

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