Problems running gstreamer v4l2 on Yocto

Problems running gstreamer v4l2 on Yocto

[Dr. Markus Eich]

Dear all,

I am trying to set up a USB webcam with Yocto using gstreamer. The 
camera is detected by my Yocto /Poky distro and tested with VLC (build 
with yocto).

I am using the following build

==
Build Configuration:
BB_VERSION        = "1.22.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-14.04"
TARGET_SYS        = "arm-poky-linux-gnueabi"
MACHINE           = "odroid-xu"
DISTRO            = "poky"
DISTRO_VERSION    = "1.6.1"
TUNE_FEATURES     = "armv7a vfp neon"
TARGET_FPU        = "vfp-neon"
meta
meta-yocto        = "daisy:87671f72e7459d5d5ddb37691354fab970c557ee"
meta-oe
meta-networking
meta-multimedia
meta-gnome        = "daisy:d85b01997ce8cc354ccc53f97fdffc79cf2277d5"
meta-odroid       = "master:bbdf8273297e310736c48a7c6490c84fe1dea6d9"
meta-ros          = "master:f6ba83122674a80bc4beb03ebfc60ea003493ec0"
meta-gumstix      = "daisy:b160dd5ca424e0f8b76871187a76095b06af7d58"
meta-dfki         = "master:82995e78f5792a91af0a6ca28f2bc63ce0a904a9"
==

I execute the following command

gst-launch v4l2src device=/dev/video0 ! ffmpegcolorspace ! ximagesink

This works perfectly on my Ubuntu 14.04 laptop as well as on my Linaro 
Image (14.04) for my embedded system (using the same camera).

I have build all gstreamer-plugins-* with Yocto.

The very same command on my Yocto distro produces:

==
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device 
'/dev/video0' cannot capture at 32768x32768
Additional debug info:
/home/eich/odroid_xu/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/gst-plugins-good/0.10.31-r8/gst-plugins-good-0.10.31/sys/v4l2/gstv4l2object.c(2212): 
gst_v4l2_object_set_format (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Call to S_FMT failed for UYVY @ 32768x32768: Invalid argument
==

Something wrong with the build config of gstreamer with Yocto?

Cheers,

Markus








-- 
Dr.-Ing. Markus Eich

  Senior Researcher
  Marine Inspection Robotics
  Space Robotics
  
  Besuchsadresse der Nebengeschäftstelle:
  DFKI GmbH
  Robotics Innovation Center
  Robert-Hooke-Straße 5
  28359 Bremen, Germany
  
  Postadresse der Hauptgeschäftsstelle Standort Bremen:
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  Robotics Innovation Center
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  E-Mail:   markus.eich@dfki.de

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