The VideoLAN Forums

Posted: **17 Mar 2011 14:26**

[UPDATE] Crop seems broken since 1.1.x: check progress on ticket 3941

If I use vlc's command-line I can crop a video-file by entering something like

Code: Select all

vlc.exe video.avi --crop='20x20+10+10'

.

I don't seem to get this working when I use libvlc_media_add_option(...)

I have tried this, but since crop is a video-out-filter, I also tried stuff like

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vout-filter=crop{crop-geometry='20x20+10+10'}
or
vout-filter=crop{geometry='20x20+10+10'}
or
video-filter=crop

but none of them work. Does anyone know what I am doing wrong, and how I could crop using LibVLC and the add_option functions?

Thanks.

Posted: **17 Mar 2011 16:22**

libvlc_video_set_crop_geometry

Posted: **17 Mar 2011 23:41**

The question was: can I do this using libvlc_media_add_option(...)

Posted: **18 Mar 2011 08:48**

What difference does it make? It's all just API calls.

Posted: **18 Mar 2011 09:24**

That I can allow a user to add options before opening the file, without having to build a command line parser from scratch.

It already exists, why would I try to recreate the same thing myself?

(BTW I decode video frames to memory planes using libvlc_video_set_callbacks and libvlc_video_set_format, I don't know if that has an influence)

Posted: **18 Mar 2011 09:46**

Another post in this forum suggested the following syntax:

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--sout="#transcode{vcodec=h264,deinterlace=1,vfilter=croppadd{cropleft=8,cropright=8},acodec=mp4a,ab=128,channels=2,samplerate=48000}:standard{access=file,dst='${1}'}

You have to change "--sout=" to ":sout=".

See viewtopic.php?f=4&t=76384

Worth a try.

Posted: **18 Mar 2011 11:49**

Crop seems broken since 1.1.x:
ticket 3941

I hope it will be fixed soon... then I can try again.

The VideoLAN Forums

howto crop?

howto crop?

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Re: howto crop?

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