[FFmpeg-user] Recording logitech ultra vison,

[Lou]

On Tue, 07 Jun 2011 19:07:10 +0100
"Sw at g" <sweetthdevil at gmail.com> wrote:

> Right,
> 
> me again, installing ffmpeg-git from aur didn't change any outcome, I

What outcome? You didn't show your command and the complete output.

> am now recompiling the latest git with  ./configure --enable-gpl 
> --enable-libx264 --enable-x11g is there any other option I should add?

ffmpeg-git and ffmpeg from the repository already use these options.
Re-compiling probably won't help you.

> regards,
> 
> On 06/07/2011 06:50 PM, Sw at g wrote:
> > Many thanks for your replies,
> >
> > I am now installing x264 and ffmpeg from aur, will let you know the 
> > outcome
> >
> >
> > On 06/07/2011 06:39 PM, Etienne Buira wrote:
> >> On Tue, Jun 07, 2011 at 06:18:50PM +0100, Sw at g wrote:
> >>> Right,
> >>>
> >>> so I have compile the latest git to try resolving the issue and
> >>> now nothing work, for example the command I was using to record
> >>> my desktop return the following errors:
> >>>
> >>> [sweetth at myhost test]$ ffmpeg -s 2720x1024 -r 25 -f x11grab
> >>> -i :0.0 -acodec libmp3lame -ab 128k -vcodec mpeg4 -sameq -y -t 60
> >>> /media/z/.cam/screen/screen_`date +%F_%T`.avi
> >>> ffmpeg version git-N-30610-g1929807, Copyright (c) 2000-2011 the
> >>> FFmpeg developers
> >>>     built on Jun  7 2011 18:01:52 with gcc 4.6.0 20110513
> >>> (prerelease) configuration:
> >>>     libavutil    51.  6. 1 / 51.  6. 1
> >>>     libavcodec   53.  6. 1 / 53.  6. 1
> >>>     libavformat  53.  2. 0 / 53.  2. 0
> >>>     libavdevice  53.  1. 1 / 53.  1. 1
> >>>     libavfilter   2. 14. 0 /  2. 14. 0
> >>>     libswscale    0. 14. 1 /  0. 14. 1
> >>> Unknown input format: 'x11grab'
> >> You need to give --enable-gpl --enable-x11grab to configure script.
> >>
> >>> and while trying to capture the webcam using the mpeg4 codec or
> >>> the libx264 then the terminal just hang:
> >>>
> >>> [sweetth at myhost test]$ ffmpeg -f video4linux2 -i /dev/video0 -b
> >>> 64m -crf
> >>> 22 -s 640x480 -vcodec mpeg4 -t 20  cam_`date +%F_%T`.mp4
> >>> ffmpeg version git-N-30610-g1929807, Copyright (c) 2000-2011 the
> >>> FFmpeg developers
> >>>     built on Jun  7 2011 18:01:52 with gcc 4.6.0 20110513
> >>> (prerelease) configuration:
> >>>     libavutil    51.  6. 1 / 51.  6. 1
> >>>     libavcodec   53.  6. 1 / 53.  6. 1
> >>>     libavformat  53.  2. 0 / 53.  2. 0
> >>>     libavdevice  53.  1. 1 / 53.  1. 1
> >>>     libavfilter   2. 14. 0 /  2. 14. 0
> >>>     libswscale    0. 14. 1 /  0. 14. 1
> >>> [video4linux2 @ 0xa75c360] The driver changed the time per frame
> >>> from 1228/32 to 1/5
> >> For that I don't know.
> >>
> >>> [sweetth at myhost test]$ ffmpeg -f video4linux2 -i /dev/video0
> >>> -pix_fmt yuv420p -s 800x600 -vcodec libx264 --preset medium -crf
> >>> 18 -r 15 -t 20 cam_`date +%F_%T`.mp4
> >>> ffmpeg version git-N-30610-g1929807, Copyright (c) 2000-2011 the
> >>> FFmpeg developers
> >>>     built on Jun  7 2011 18:01:52 with gcc 4.6.0 20110513
> >>> (prerelease) configuration:
> >>>     libavutil    51.  6. 1 / 51.  6. 1
> >>>     libavcodec   53.  6. 1 / 53.  6. 1
> >>>     libavformat  53.  2. 0 / 53.  2. 0
> >>>     libavdevice  53.  1. 1 / 53.  1. 1
> >>>     libavfilter   2. 14. 0 /  2. 14. 0
> >>>     libswscale    0. 14. 1 /  0. 14. 1
> >>> [video4linux2 @ 0x9287360] The driver changed the time per frame
> >>> from 1228/32 to 1/5
> >>>
> >>>
> >>> Any help would be appreciated,
> >>>
> >>>
> >>>
> >>> On 06/07/2011 04:52 PM, Paul Gardiner wrote:
> >>>> On 07/06/2011 16:35, Sw at g wrote:
> >>>>> Hi again,
> >>>>>
> >>>>> Well with " " or ` ` it doesn't work "Unrecognized option
> >>>>> 'preset medium'" only the -vpre works.
> >>>> -vpre is a completely different thing. You definitely need
> >>>> -preset. If that's not accepted, then it has to be that you have
> >>>> a version of ffmpeg that is too old.
> >>>>
> >>>> -vpre is just a way to provoke long lists of ffmpeg paramaters
> >>>> stored in a preset file. It is -preset that communicates to
> >>>> libx264. There's never been a time when -vpre did what -preset
> >>>> does now, so it will not help to try using it.
> >> vpre was just a way to do the same thing as preset does now.