video_exif module

Add EXIF data to any JPEG

• Image size
• GPS location

Example for airframe file

Add to your firmware section:

<module name="video_thread"/>
<module name="video_exif"/>

Dependencies

• video_thread module

Module functions

Periodic Functions

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

• push_gps_to_vision()
  • Frequency in Hz: 8
  • Autorun: LOCK
    Periodic function automatically starts after init and can't be stopped.

Files

Header Files

The following headers are automatically included in modules.h

• lib/exif/exif_module.h

Source Files

• modules/computer_vision/lib/exif/exif_module.c
• /exif-content.c
• /exif-entry.c
• /exif-tag.c
• /exif-format.c
• /exif-utils.c
• /exif-mem.c
• /exif-data.c
• /exif-log.c
• /exif-loader.c
• /exif-ifd.c
• /exif-mnote-data.c

Raw video_exif.xml file:

<!DOCTYPE module SYSTEM "module.dtd">

<module name="video_exif" dir="computer_vision">
  <doc>
    <description>
      Add EXIF data to any JPEG

      - Image size
      - GPS location
    </description>
  </doc>

  <depends>video_thread</depends>

  <header>
    <file name="lib/exif/exif_module.h"/>
  </header>
  <periodic fun="push_gps_to_vision()" freq="8"/>
  <makefile target="ap">
    <include name="modules/computer_vision"/>
    <file name="exif_module.c" dir="modules/computer_vision/lib/exif"/>

    <!-- libexif -->
    <configure name="EXTSW" value="$(PAPARAZZI_SRC)/sw/ext" />
    <configure name="LIBEXIF" value="$(EXTSW)/libexif" />
    <file name="exif-content.c" dir="$(LIBEXIF)"/>
    <file name="exif-entry.c" dir="$(LIBEXIF)"/>
    <file name="exif-tag.c" dir="$(LIBEXIF)"/>
    <file name="exif-format.c" dir="$(LIBEXIF)"/>
    <file name="exif-utils.c" dir="$(LIBEXIF)"/>
    <file name="exif-mem.c" dir="$(LIBEXIF)"/>
    <file name="exif-data.c" dir="$(LIBEXIF)"/>
    <file name="exif-log.c" dir="$(LIBEXIF)"/>
    <file name="exif-loader.c" dir="$(LIBEXIF)"/>
    <file name="exif-ifd.c" dir="$(LIBEXIF)"/>
    <file name="exif-mnote-data.c" dir="$(LIBEXIF)"/>


    <!-- libexif flags -->
    <include name="$(EXTSW)"/>
    <include name="$(LIBEXIF)"/>
    <define name="NO_VERBOSE_TAG_DATA"/>
    <define name="NO_VERBOSE_TAG_STRINGS"/>
    <define name="JPEG_WITH_EXIF_HEADER" value="1"/>
  </makefile>
</module>