[vlc-devel] grabbing frames with vlc 1.1.0

[Mehmet Kaplan]

I add the --file-logging option, but there is not any log file output.
I do something wrong or there is not any error.

On Thu, May 20, 2010 at 6:20 PM, Kaarlo Räihä <kaarlo.raiha at gmail.com> wrote:
> Could you check VLC message log while you do the operation? Look for any
> dropped frames or libavcodec errors/warnings.
>
> 2010/5/20 Mehmet Kaplan <mehmetkpln at gmail.com>
>>
>> I tested the following command on VLC 0.9.9 and the problem (less
>> number of frames and different number of frames in each execution)
>> still exists.
>> vlc.exe test.avi -V image --aout=dummy --intf=dummy --dummy-quiet
>> --no-video-title-show
>> --image-out-format=png --image-out-ratio=1 --image-out-prefix=frame_
>> --no-snapshot-preview vlc://quit
>>
>> On Tue, May 18, 2010 at 2:41 PM, Mehmet Kaplan <mehmetkpln at gmail.com>
>> wrote:
>> > yes, i tried that command earlier and it doesn't work with 1.1.0.
>> > so, the only solution is to use old method wtih earlier builds.
>> > I'll try it, thanks a lot.
>> >
>> > On Tue, May 18, 2010 at 1:47 PM, Kaarlo Räihä <kaarlo.raiha at gmail.com>
>> > wrote:
>> >> http://wiki.videolan.org/Video_Output#image
>> >> that was old method. It doesn't work with current builds, but it should
>> >> work
>> >> in 0.9.x series IIRC.
>> >>
>> >> 2010/5/18 Mehmet Kaplan <mehmetkpln at gmail.com>
>> >>>
>> >>> I'm sorry, I don't know the earlier method.
>> >>> Can you give me an example command?
>> >>>
>> >>>
>> >>> 2010/5/18 Rémi Denis-Courmont <remi at remlab.net>:
>> >>> >
>> >>> > On Tue, 18 May 2010 08:48:38 +0300, Mehmet Kaplan
>> >>> > <mehmetkpln at gmail.com>
>> >>> > wrote:
>> >>> >> I'm using following command to grab all frames of a video file.
>> >>> >>
>> >>> >> vlc.exe --video-filter=scene --vout=dummy --aout=dummy --intf=dummy
>> >>> >> --dummy-quiet --scene-format=png --scene-ratio=1
>> >>> >> --scene-prefix=snap
>> >>> >> --scene-path=C:\images\ test.avi vlc://quit
>> >>> >>
>> >>> >> This command gives less number of frames than the original frames.
>> >>> >> Also this command produces different number of frames in every
>> >>> >> execution.
>> >>> >
>> >>> > Yeah. The scene filter is poorly designed, inefficient, and it can
>> >>> > loose
>> >>> > frames if the system is not that fast. In my opinion, the earlier
>> >>> > method
>> >>> > was much better.
>> >>> >
>> >>> > --
>> >>> > Rémi Denis-Courmont
>> >>> > http://www.remlab.net
>> >>> > http://fi.linkedin.com/in/remidenis
>> >>> >
>> >>> > _______________________________________________
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>> >>
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