Dear all,
I am wondering if mxc-vpu-test supports USB web-cam (UVC).
My i.MX6Q platform runs iMX6_jb4.3.1.0.0 BSP.
I tested a Logitech web-cam C615.
Here is the message from Linux dmesg:
[ ] usb 2-1.3.1: new high speed USB device number 7 using fsl-ehci
[ ] uvcvideo: Found UVC 1.00 device HD Webcam C615 (046d:082c)
[ ] input: HD Webcam C615 as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.3/2-1.3.1/2-1.3.1:1.2/input/input5
Then I got a new device node of Logitech web-cam: /dev/video2
But I got error message on encoding/loopback with this device.
Here are error message:
#mxc-vpu-test -E ' -x 2 -w 640 -h 480 -f 2 -t 1 -c 180 -o webcam.mp4'
[INFO] VPU test program built on Jun 30 2014 14:57:52
[INFO] VPU firmware version: 2.3.10_r40778
[INFO] VPU library version: 5.4.14
[INFO] Format: STD_AVC
[INFO] AVC
[INFO] Output file "webcam.mp4" opened.
[INFO] Capture/Encode fps will be 30
VIDIOC_DBG_G_CHIP_IDENT failed.
#mxc-vpu-test -L '-x 2 -w 720 -h 480 -f 2'
[INFO] VPU test program built on Jun 30 2014 14:57:52
[INFO] VPU firmware version: 2.3.10_r40778
[INFO] VPU library version: 5.4.14
[INFO] Format: STD_AVC
[INFO] AVC
[INFO] Capture/Encode fps will be 30
VIDIOC_DBG_G_CHIP_IDENT failed.
Is there anyone tested mxc-vpu-test OK with USB webcam?
Can you tell me which one webcam is well supported?
Hi William
unfortunately
unit tests (mxc-vpu-test) do no support USB cameras.
Best regards
chip
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi William
shortly it can be tested with gstreamer:
gst-launch v4l2src ! mfw_v4lsink
if doesn't work, try:
gst-launch v4l2src ! decodebin2 ! mfw_v4lsink
http://linuxtv.org/wiki/index.php/Webcam_Devices
http://tldp.org/HOWTO/html_single/Webcam-HOWTO/
Best regards
chip