[Bug 632386] Unable to capture from second screen

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=632386
  GStreamer | gst-plugins-good | 0.10.30

--- Comment #2 from David Klasinc <bigwhale at lubica.net> 2011-04-25 06:19:49 UTC ---
Unfortunately, this doesn't work for me. If I use first parameters you
suggested x264enc will return an error that it cannot be initialized. I am
guessing it has to do something with the resolution. If my endx and endy
parameters are 3278 and 1198 capturing works on the correct screen, but the
video is two pixels smaller on the each side. I did write this in the original
bug report.

bigwhale at thefish:~$ gst-launch -v ximagesrc startx=1680 starty=0 endx=3279
endy=1199 use-damage=0 ! ffmpegcolorspace ! x264enc ! matroskamux ! filesink
location="test.mkv"
Setting pipeline to PAUSED ...
/GstPipeline:pipeline0/GstXImageSrc:ximagesrc0.GstPad:src: caps =
video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321,
red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216,
width=(int)1599, height=(int)1199, framerate=(fraction)25/1,
pixel-aspect-ratio=(fraction)1/2147483647
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstXImageSrc:ximagesrc0.GstPad:src: caps =
video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321,
red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216,
width=(int)1599, height=(int)1199, framerate=(fraction)25/1,
pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps =
video/x-raw-yuv, format=(fourcc)I420, framerate=(fraction)25/1,
width=(int)1599, height=(int)1199, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps =
video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321,
red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216,
width=(int)1599, height=(int)1199, framerate=(fraction)25/1,
pixel-aspect-ratio=(fraction)1/1
ERROR: from element /GstPipeline:pipeline0/GstX264Enc:x264enc0: Can not
initialize x264 encoder.
Additional debug info:
gstx264enc.c(1153): gst_x264_enc_init_encoder ():
/GstPipeline:pipeline0/GstX264Enc:x264enc0
Execution ended after 32542477 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstXImageSrc:ximagesrc0.GstPad:src: caps = NULL
Setting pipeline to NULL ...
Freeing pipeline ...

If I use the second parameters that you suggested, ximagesrc captures both
screeens and I get a video with the resolution of 3200x1200.

This bug is not resolved.

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