Unable to find a compatible palette format with Logitech Sphere.

Question

Motion wont stat because of palette format. Webcam (Bus 001 Device 002: ID 046d:08c2 Logitech, Inc.).

[0] Processing thread 0 - config file /usr/local/etc/motion.conf
[0] Motion running in setup mode.
[0] Thread 1 is from /usr/local/etc/motion.conf
[0] Thread 1 is device: /dev/video0 input 8
[0] Waiting for threads to finish, pid: 7317
[1] Thread started
[1] cap.driver: "uvcvideo"
[1] cap.card: "USB Video Class device"
[1] cap.bus_info: "0000:00:07.2"
[1] cap.capabilities=0x04000001
[1] - VIDEO_CAPTURE
[1] - STREAMING
[1] v4l2_select_input: name = "Camera", type 0x00000002, status 00000000
[1] - CAMERA
[1] Supported palettes:
[1] 0: MJPG (MJPEG)
[1] Unable to find a compatible palette format.
[0] motion-httpd/3.2.8 running, accepting connections
[0] motion-httpd: waiting for data on port TCP 8080
[1] ioctl(VIDIOCGMBUF) - Error device does not support memory map
[1] V4L capturing using read is deprecated!
[1] Motion only supports mmap.
[1] Capture error calling vid_start
[1] Thread finishing...

Motion starts now (with svn version r153), but then it shutdown after this error message:

[1] processing jpeg image - content length 15167
[1] Huffman table 0x00 was not defined
[1] Error capturing first image
[1] Thread finishing...

Environment

Motion version:	3.2.8 svn r153
ffmpeg version:
Libraries:	ffmpeg
Server OS:	Ubuntu 6.10 (Edgy Eft)

-- PeterBowle - 14 Jan 2007

Follow Up

Please try latest svn version r153 i have added an experimental support for MJPEG ( Motion Jpeg ).

Let me know any issue to improve the support to V4L2_PIX_FMT_MJPEG.

-- AngelCarpintero - 14 Jan 2007

---

Ok seems that motion jpeg needs a Huffman table , because the jpeg data is not complete in a jpeg frame. Let me figure out how to add it to allow jpeg decode properly the jpeg frame.

-- AngelCarpintero - 14 Jan 2007

Answer

I've added an experimental support for MJPEG ( V4L2_PIX_FMT_MJPEG ) in current svn version ( r159 ).

Please test it, open any bug related to problem with it.

-- AngelCarpintero - 18 Jan 2007