[FFmpeg-user] Rotating an mp4 video on Windows

Elie Grouchko elie at grouchko.net
Mon Aug 8 23:17:46 EEST 2016

Hi Carl,

I tried the two commands, they do produce valid WMP videos with no sound.


-----Original Message-----
From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Carl Eugen Hoyos
Sent: August-08-16 12:45 PM
To: FFmpeg user questions <ffmpeg-user at ffmpeg.org>
Subject: Re: [FFmpeg-user] Rotating an mp4 video on Windows


2016-08-08 20:08 GMT+02:00 Elie Grouchko <elie at grouchko.net>:
> The transposed video can be played back with VLC.
> With WPM I can hear the sound, but no video.

This is unexpected.
Could you test the following command lines?
$ ffmpeg -f lavfi -i testsrc -pix_fmt yuv420p -t 10 out1.mp4 $ ffmpeg -f lavfi -i testsrc,transpose=1 -pix_fmt yuv420p -t 10 out2.mp4

Please avoid top-posting here, Carl Eugen _______________________________________________
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