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Today's Topics:
1. v4l2 loopdevice /dev/video0 not work. (Thomas Drebert)
----------------------------------------------------------------------
Message: 1
Date: Wed, 3 Jul 2019 00:18:36 +0200
From: Thomas Drebert <[email protected]>
To: Motion discussion list <[email protected]>
Subject: [Motion-user] v4l2 loopdevice /dev/video0 not work.
Message-ID:
<cann+32hrwpq0aumz7fo_tmhvs_ybh9qo76xd-6zmg5le0ps...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Hello,
Motion Version is "pi_stretch_motion_4.2.2-1_armhf"
I try to use a FLIR Lepton module, this module provides device
/dev/video0 via the v4l2loopadapter.
This is the v4l2-ctl output:
Driver Info (not using libv4l2):
Driver name : v4l2 loopback
Card type : Dummy video device (0x0000)
Bus info : platform:v4l2loopback-000
Driver version: 4.14.30
Capabilities : 0x85208003
Video Capture
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x85208003
Video Capture
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Priority: 0
Video input : 0 (loopback: ok)
Video output: 0 (loopback in)
Format Video Output:
Width/Height : 80/60
Pixel Format : 'RGB3'
Field : None
Bytes per Line : 240
Size Image : 14400
Colorspace : sRGB
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Flags :
Streaming Parameters Video Capture:
Frames per second: 30.000 (30/1)
Read buffers : 8
Streaming Parameters Video Output:
Frames per second: 30.000 (30/1)
Write buffers : 8
And this the Motion output:
[0:motion] [NTC] [ALL] conf_load: Processing thread 0 - config file
/etc/motion/motion.conf
[0:motion] [NTC] [ALL] motion_startup: Logging to syslog
[0:motion] [NTC] [ALL] motion_startup: Motion 4.2.2 Started
[0:motion] [NTC] [ALL] motion_startup: Using default log type (ALL)
[0:motion] [NTC] [ALL] motion_startup: Using log type (ALL) log level (NTC)
[0:motion] [NTC] [STR] webu_start_strm: Starting all camera streams on port 8081
[0:motion] [NTC] [STR] webu_strm_ntc: Started camera 0 stream on port 8081
[0:motion] [NTC] [STR] webu_start_ctrl: Starting webcontrol on port 8080
[0:motion] [NTC] [STR] webu_start_ctrl: Started webcontrol on port 8080
[0:motion] [NTC] [ENC] ffmpeg_global_init: ffmpeg libavcodec version
57.64.101 libavformat version 57.56.101
[0:motion] [NTC] [ALL] translate_init: Sprache: Deutsch
[0:motion] [NTC] [ALL] motion_start_thread: Camera ID: 0 is from
/etc/motion/motion.conf
[0:motion] [NTC] [ALL] motion_start_thread: Camera ID: 0 Camera Name:
(null) Device: /dev/video0
[0:motion] [NTC] [ALL] main: Waiting for threads to finish, pid: 7487
[1:ml1] [NTC] [ALL] motion_init: Camera 0 started: motion detection Enabled
[1:ml1] [CRT] [NET] motion_init: Image height (60) requested is not modulo 8.
[1:ml1] [CRT] [NET] motion_init: Adjusting height to next higher
multiple of 8 (64).
[1:ml1] [NTC] [VID] vid_start: Opening V4L2 device
[1:ml1] [NTC] [VID] v4l2_device_open: Using videodevice /dev/video0 and input -1
[1:ml1] [NTC] [VID] v4l2_device_capability: - VIDEO_CAPTURE
[1:ml1] [NTC] [VID] v4l2_device_capability: - VIDEO_OUTPUT
[1:ml1] [NTC] [VID] v4l2_device_capability: - READWRITE
[1:ml1] [NTC] [VID] v4l2_device_capability: - STREAMING
[1:ml1] [NTC] [VID] v4l2_input_select: Name = "loopback"- CAMERA
[1:ml1] [NTC] [VID] v4l2_norm_select: Device does not support
specifying PAL/NTSC norm
[1:ml1] [NTC] [VID] v4l2_pixfmt_set: Testing palette RGB3 (80x64)
[1:ml1] [WRN] [VID] v4l2_pixfmt_set: Adjusting resolution from 80x64 to 80x60.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Adjusted resolution not modulo 8.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Specify different palette or
width/height in config file.
[1:ml1] [NTC] [VID] v4l2_pixfmt_select: Configuration palette index 10
(RGB3) for 80x64 doesn't work.
[1:ml1] [NTC] [VID] v4l2_pixfmt_select: Supported palettes:
[1:ml1] [NTC] [VID] v4l2_pixfmt_select: (0) RGB3 (24-bit RGB 8-8-8)
[1:ml1] [NTC] [VID] v4l2_pixfmt_set: Testing palette RGB3 (80x64)
[1:ml1] [WRN] [VID] v4l2_pixfmt_set: Adjusting resolution from 80x64 to 80x60.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Adjusted resolution not modulo 8.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Specify different palette or
width/height in config file.
[1:ml1] [ERR] [VID] v4l2_pixfmt_select: Palette selection failed for format RGB3
[1:ml1] [ERR] [VID] v4l2_pixfmt_select: Unable to find a compatible
palette format.
[1:ml1] [ERR] [VID] vid_start: V4L2 device failed to open
[1:ml1] [WRN] [ALL] motion_init: Could not fetch initial image from camera
[1:ml1] [WRN] [ALL] motion_init: Motion continues using width and
height from config file(s)
[1:ml1] [NTC] [ALL] image_ring_resize: Resizing pre_capture buffer to 1 items
[1:ml1] [WRN] [ALL] init_text_scale: Invalid text scale. Adjusted to 1
[1:ml1] [WRN] [ALL] Above message repeats 4 times
[1:ml1] [WRN] [ALL] mlp_retry: Retrying until successful connection with camera
[1:ml1] [NTC] [VID] vid_start: Opening V4L2 device
[1:ml1] [NTC] [VID] v4l2_device_open: Using videodevice /dev/video0 and input -1
[1:ml1] [NTC] [VID] v4l2_device_capability: - VIDEO_CAPTURE
[1:ml1] [NTC] [VID] v4l2_device_capability: - VIDEO_OUTPUT
[1:ml1] [NTC] [VID] v4l2_device_capability: - READWRITE
[1:ml1] [NTC] [VID] v4l2_device_capability: - STREAMING
[1:ml1] [NTC] [VID] v4l2_input_select: Name = "loopback"- CAMERA
[1:ml1] [NTC] [VID] v4l2_norm_select: Device does not support
specifying PAL/NTSC norm
[1:ml1] [NTC] [VID] v4l2_pixfmt_set: Testing palette RGB3 (80x64)
[1:ml1] [WRN] [VID] v4l2_pixfmt_set: Adjusting resolution from 80x64 to 80x60.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Adjusted resolution not modulo 8.
[1:ml1] [ERR] [VID] v4l2_pixfmt_set: Specify different palette or
width/height in config file.
[1:ml1] [NTC] [VID] v4l2_pixfmt_select: Configuration palette index 10
(RGB3) for 80x64 doesn't work
A test with ffmpeg shows that /dev/video0 works:
Is there a way to make it running?
regards
ThomasD
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