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I think you should better use camerabin <BR>
<BR>
El mar, 26-01-2010 a las 21:01 -0500, Aldon Hynes escribió:
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I am new to using gst-launch. I've not been able to find good descriptions
of the different options or elements to use. So, I started by using
gst-launch v4l2camsrc device=/dev/video1 num-buffers=1 ! videoscale !
video/x-raw-yuv,width=475,height=356 ! omx_jpegenc ! filesink
location=test.jpg
That gave me the error about omx_jpegenc
When I tried using jpegenc instead of omx_jpegenc I got a message:
could not link videoscale0 to jpegenc0
I tried dropping videoscale, I tried using pngenc, none of these worked.
The suggestion about dspjpegenc worked nicely, except that the images turned
out all black or all white. Is there a png counterpart? I also tried
adding capture-mode=1 to the v4l2camsrc element, which didn't make any
difference.
I haven't done anything with ffmpegcolorspace, so I'll look at that next.
If you know of any good documentation on using the gst-tools, that would be
greatly appreciated.
Aldon
-----Original Message-----
From: Attila Csipa [<A HREF="mailto:maemo@csipa.in.rs">mailto:maemo@csipa.in.rs</A>]
Sent: Tuesday, January 26, 2010 6:42 PM
To: <A HREF="mailto:maemo-users@maemo.org">maemo-users@maemo.org</A>
Cc: Aldon Hynes
Subject: Re: gst-launch and openmax
On Tuesday 26 January 2010 23:21:49 Aldon Hynes wrote:
> When I tried jpegenc I got
>
> WARNING: erroneous pipeline: could not link v4l2camsrc0 to jpegenc0
>
> When I tried pngenc I got
>
> WARNING: erroneous pipeline: could not link v4l2camsrc0 to pngenc0
>
> When I tried dspjpegenc, it captured a picture, but my image was all
black.
Can you post the whole pipeline you're using ? Seems you're missing an
element
(likely ffmpegcolorspace or sorts).
Regards,
Attila
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</PRE>
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