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How to fix the camera timeout error ?

Question asked by billyhe on Jan 22, 2013
Latest reply on Jul 15, 2014 by Thomas Yang
Branched to a new discussion

hardware environment: CPU: i.MX53, camera: OV5640

purpose: use the video for linux(v4l2) interface to get the picture with 2592x1944

dirver files: ov5640_camera.ko  mxc_v4l2_capture.ko

test program: mxc_v4l2_capture.out

 

add device file normal, at the end will creat /dev/video0 file

root@freescale /$modprobe ov5640_camera

root@freescale /$modprobe mxc_v4l2_capture.out

m=0, rf=30, size = 640*480 …pass

root@freescale /unit_tests$ ./mxc_v4l2_capture.out 00.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 640x480

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

  1. buf.index 1
  2. buf.index 2
  3. buf.index 0

mxc_v4l_close: release resource

 

m=1, rf=30, size = 320*240 …pass

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -m 1 01.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 320x240

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

  1. buf.index 1
  2. buf.index 2
  3. buf.index 0

mxc_v4l_close: release resource

 

m=2, rf=30, size = 720x480 …pass

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -m 2 02.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 720x480

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

  1. buf.index 1
  2. buf.index 2
  3. buf.index 0

mxc_v4l_close: release resource

 

m=3, rf=30, size = 720x576 …pass

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -m 3 03.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 720x576

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

  1. buf.index 1
  2. buf.index 2
  3. buf.index 0

mxc_v4l_close: release resource

 

m=4, rf=30, size = 1280x720 … fail, mxc_v4l_dqueue timeout

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -fr 30 -m 4 04.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 1280x720

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

mxc_ipu mxc_ipu: IPU Error - IPU_INT_STAT_5 = 0x00100000

 

ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0

VIDIOC_DQBUF failed.

ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued

VIDIOC_QBUF failed

mxc_ipu mxc_ipu: warning: disable ipu dma channel 20 during its busy state

mxc_v4l_close: release resource

 

m=5, fr=15, size = 1920x1080 … fail, mxc_v4l_dqueue timeout

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -fr 15 -m 5 05.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

 

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 1920x1080

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

mxc_ipu mxc_ipu: IPU Error - IPU_INT_STAT_5 = 0x00100000

ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0

VIDIOC_DQBUF failed.

ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued

VIDIOC_QBUF failed

mxc_ipu mxc_ipu: warning: disable ipu dma channel 20 during its busy state

mxc_v4l_close: release resource

 

m=6, fr=15, size = 2592x1944 …fail, mxc_v4l_dqueue timeout

root@freescale /unit_tests$ ./mxc_v4l2_capture.out -fr 15 -m 6 06.jpg

in_width = 176, in_height = 144   device name is Mxc Camera

out_width = 176, out_height = 144

top = 0, left = 0

sensor chip is ov5640_camera

sensor frame size is 2592x1944

sensor frame format is YUYV

         Width = 176     Height = 144    Image size = 3YUV4208016

         pixelformat = 842093913

mxc_ipu mxc_ipu: IDMAC20's EBA0 is not 8-byte aligned

mxc_ipu mxc_ipu: IDMAC20's EBA1 is not 8-byte aligned

ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0

VIDIOC_DQBUF failed.

ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued

VIDIOC_QBUF failed

mxc_v4l_close: release resource

 

Why the picture size bigger than 720x576 will happen timeout error ? How to fix it?

 

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