[FFmpeg-user] MacOSX Output Question
richard at mozilla.com
Mon Aug 18 02:20:53 CEST 2014
Thanks for the help Carl.
~ ffplay input.mp4 -vf movie-logo.png,[in]overlay does show overlay correctly,
...but if I try the same line with ffmpeg:
~ ffmpeg input.mp4 -vf movie-logo.png,[in]overlay output.mp4
It fails in a strange way by trying to over-write the input.mp4 file?
I clearly don't understand that syntax (Back to the docs!).
Sadly, OSX only shows me one output device (SDL), and that fails with *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error (1000) creating CGSWindow on line 263' whenever I try to use it with a -f. Without the -f, FFmpeg tells me sdl is an invalid argument.
Lots to learn yet, I guess.
----- Original Message -----
From: "Carl Eugen Hoyos" <cehoyos at ag.or.at>
To: ffmpeg-user at ffmpeg.org
Sent: Sunday, August 17, 2014 4:50:33 PM
Subject: Re: [FFmpeg-user] MacOSX Output Question
Richard Milewski <richard <at> mozilla.com> writes:
> ffplay -i input.mp4 -i logo.png -filter_complex overlay
$ ffplay input.mp4 -vf movie=logo.png,[in]overlay
Or you use one of the several video output devices
that are listed with "ffmpeg -devices".
(The number might be limited on osx, note that they
are video-only, if you use an audio output device
at the same time, you might get A/V sync problems.)
ffmpeg-user mailing list
ffmpeg-user at ffmpeg.org
More information about the ffmpeg-user