Hi,
I need to reduce frame-rate from my video shoot by mobile ( variable frame-rate
about 29 fps) to 25 fps.
As you know using -r 25 just drops every 6th frame resulting in choppy (jerky)
footage.
Is there any better option how to do it more smoothly (blending etc.)?
Maintaining the same
Hello,
I am down-scaling 4K video into 1080p, result is ok, but with different:
- color info (bt709 vs Nothing)
- tbn (90k vs 30k)
- missing creation time (Metadata: creation_time : 2014-11-02 14:18:12 vs
Empty)
Input 4K video
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661),
. . .
To: ffmpeg-user@ffmpeg.org
From: ceho...@ag.or.at
Date: Thu, 4 Dec 2014 08:55:54 +
Subject: Re: [FFmpeg-user] Mjpeg to h264 audio sync problem
Petr Tresnak peter.cherry at quick.cz writes:
sound is not synchronized.
ffmpeg -i mjpeg.avi -c:v libx264 -preset slow -crf 13
To: ffmpeg-user@ffmpeg.org
Subject: Re: [FFmpeg-user] Mjpeg to h264 audio sync problem
* Petr Tresnak on Friday, December 05, 2014 at 10:34:50 +
the sound start is cut and audio is ahead even more with your command line.
ffmpeg -i mjpeg.avi -qscale 2 -strict -2 -vcodec mpeg4 -acodec aac
Hello,
I am trying to convert Canon MJPEG to MP4 (h264/AAC) but after conversion, the
start of the audio is cut and sound is not synchronized.
ffmpeg -i mjpeg.avi -c:v libx264 -preset slow -crf 13 -pix_fmt yuvj420p -c:a
libfdk_aac -b:a 192k output.mp4
or
ffmpeg -async 1 -i mjpeg.avi
