video_usb_logger module

Log video and pose to USB-stick.

Logs attitude and position to a csv and images to jpeg files (only for linux).

Example for airframe file

Add to your firmware section: This example contains all possible configuration options, not all of them are mandatory!

<module name="video_thread"/>
<module name="pose_history"/>
<module name="video_usb_logger">
  <define name="VIDEO_USB_LOGGER_PATH" />
  <define name="VIDEO_USB_LOGGER_CAMERA" value="front_camera|bottom_camera" />
  <define name="VIDEO_USB_LOGGER_WIDTH" value="272" />
  <define name="VIDEO_USB_LOGGER_HEIGHTH" value="272" />
  <define name="VIDEO_USB_LOGGER_JPEG_WITH_EXIF_HEADER" value="TRUE" />
</module>

Module configuration options

Define Options

• name: VIDEO_USB_LOGGER_PATH value: None
  Description: Logging path
• name: VIDEO_USB_LOGGER_CAMERA value: front_camera|bottom_camera
  Description: Video device to log
• name: VIDEO_USB_LOGGER_WIDTH value: 272
  Description: Size of the to log images
• name: VIDEO_USB_LOGGER_HEIGHTH value: 272
  Description: Size of the to log images
• name: VIDEO_USB_LOGGER_JPEG_WITH_EXIF_HEADER value: TRUE
  Description: Whether to store data in the exif header or not

Dependencies

• video_thread module
• pose_history module

Module functions

Periodic Functions

These functions are called periodically at the specified frequency from the module periodic loop.

• video_usb_logger_periodic()
  • Running at maximum module frequency.
  • Autorun: TRUE
    Periodic function automatically starts after init.
  • Start function: video_usb_logger_start()
    Executed before the periodic function starts.
  • Stop function: video_usb_logger_stop()
    Executed after the periodic function stops.

Files

Header Files

The following headers are automatically included in modules.h

• video_usb_logger.h

Source Files

• modules/computer_vision/video_usb_logger.c

Raw video_usb_logger.xml file:

<!DOCTYPE module SYSTEM "module.dtd">

<module name="video_usb_logger" dir="computer_vision">
  <doc>
    <description>
      Log video and pose to USB-stick.
      Logs attitude and position to a csv and images to jpeg files (only for linux).
    </description>
    <define name="VIDEO_USB_LOGGER_PATH" description="Logging path"/>
    <define name="VIDEO_USB_LOGGER_CAMERA" value="front_camera|bottom_camera" description="Video device to log"/>
    <define name="VIDEO_USB_LOGGER_WIDTH" value="272" description="Size of the to log images"/>
    <define name="VIDEO_USB_LOGGER_HEIGHTH" value="272" description="Size of the to log images"/>
    <define name="VIDEO_USB_LOGGER_JPEG_WITH_EXIF_HEADER" value="TRUE" description="Whether to store data in the exif header or not"/>
  </doc>
  <depends>video_thread,pose_history</depends>
  <header>
    <file name="video_usb_logger.h"/>
  </header>
  
  <periodic fun="video_usb_logger_periodic()" start="video_usb_logger_start()" stop="video_usb_logger_stop()" autorun="TRUE"/>
  <makefile target="ap">
    <file name="video_usb_logger.c"/>
  </makefile>
</module>