Difference between revisions of "Adding exif metadata with Gstreamer"
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| + | <seo title="Adding Exif Metadata with Gstreamer | JPEG Image Metadata" titlemode="replace" keywords="GStreamer, Linux SDK, Linux BSP, Embedded Linux, Device Drivers, Nvidia, Xilinx, TI, NXP, Freescale, Embedded Linux driver development, Linux Software development, Embedded Linux SDK, Embedded Linux Application development, GStreamer Multimedia Framework." description="This document from RidgeRun contains useful information regarding how to add exif metadata to JPEG images. Learn about Libexif and Gstreamer today."></seo> | ||
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In this document you will find how to add exif metadata to jpeg image. | In this document you will find how to add exif metadata to jpeg image. | ||
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This pipeline insert the artist's name and a comment in the metadata of the jpeg's image. | This pipeline insert the artist's name and a comment in the metadata of the jpeg's image. | ||
| − | [http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/ | + | [http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstTagList.html Here] you can find the list of tags and values used to describe media metadata in Gstreamer. |
| − | [[GStreamer]] | + | [[Category:GStreamer]] |
Latest revision as of 14:02, 15 December 2017
In this document you will find how to add exif metadata to jpeg image.
The libexif Library
- Libexif is a library for parsing, editing, and saving EXIF data.
- The library supports all the EXIF tags described in EXIF standard 2.1 (and most from 2.2).
- It is written in plain C and does not require any additional library.
RidgeRun SDK includes this library you can select it in the configuration menu.
libexif and Gstreamer
The gst-plugins-bad includes the plug-in jifmux that allow you to include exif metadata in an image using Gstreamer. jifmux uses the libexif library to remux images with marks and tags. The jpeg image received on the jifmux's sink pad should be minimal (e.g. should not contain metadata already).
Example of gst-launch line:
gst-launch videotestsrc num-buffers=1 ! jpegenc ! taginject tags="comment =\"Image metainfo test \",artist=RidgeRun" ! jifmux ! filesink location=test.jpeg
This pipeline insert the artist's name and a comment in the metadata of the jpeg's image.
Here you can find the list of tags and values used to describe media metadata in Gstreamer.
