Cheese shows very small video size

[Alexander Hunziker]

I have a Webcam that outputs good quality VGA resolution video. The driver it uses is uvcvideo. In feisty when using Cheese, I got a fairly large, high resolution and fluid preview. Now in gutsy beta, the preview image is very small (160x120 I think) and gets updated only about once every second.

[Alexander Hunziker (alex-hunziker)]

I have a feeling that gstreamer is to be blamed. The driver does seem to output the 640x480 resolution it should, I verified this using ffmpeg [1]. Also, the "Multimedia Systems Selector" application (normally hidden in ubuntu's menus, call using gstreamer-properties) shows only the 160x120 tiny video, though at least at a reasonable framerate.

[1] something like ffmpeg -f video4linux2 -s 640x480 -r 24 -b 750000 -vcodec wmv2 -i /dev/video0 -f audio_device -i /dev/audio1 -isync -acodec wmav2 -f avi out.wmv

[Alexander Hunziker (alex-hunziker)]

I have been playing around with gst-launch. GStreamer's v4l2src does indeed by default only provide a very small 160x120 pixel image, even though the native resolution of my camera is higher. It can be convinced to providing a higher resolution image though when providing caps.

gst-launch-0.10 v4l2src ! video/x-raw-yuv,width=640,height=480 ! ffmpegcolorspace ! theoraenc ! oggmux ! filesink location=/home/hunzikea/test.ogg

[Alexander Hunziker (alex-hunziker)]

It seems the newest Cheese (0.2.4) does it correctly by forcing v4l2src to output a higher resolution. Any chance of upgrading it before (or after) release?

[teppot (teppot-deactivatedaccount)]

Reported this upstream at http://bugzilla.gnome.org/show_bug.cgi?id=490818.

[Pedro Villavicencio (pedro)]

comment from upstream:

"I think this is fixed in current CVS. Please re-open if not"

[Sebastien Bacher (seb128)]

the new version is available in hardy