[gstreamer-bugs] [Bug 482947] new generic metadata for image capturing (and other things)

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: HEAD CVS




------- Comment #1 from Edgard Lima  2007-11-08 13:54 UTC -------

follows bellow the new tags I would like to add for the time being
  (those tags replaces the proposed ones above):

GST_TAG_DEVICE_MAKE G_TYPE_STRING (Sent by application, for example: "Cassio")

GST_TAG_DEVICE_MODEL G_TYPE_STRING (Sent by application, for example:
  "Exilim  8.1 MP")

GST_TAG_DATE_MODIFIED  G_TYPE_DATE (alias to GST_TAG_DATE)

GST_TAG_TIME_MODIFIED G_TYPE_TIME

GST_TAG_DATE_ORIGINAL G_TYPE_DATE (date when the document was created)

GST_TAG_TIME_ORIGINAL G_TYPE_TIME (time when the document was created)

GST_TAG_DATE_DIGITIZED G_TYPE_DATE (date when the document was digitized,
  for example, scanned)

GST_TAG_TIME_DIGITIZED G_TYPE_TIME (time when the document was digitized,
  for example, scanned)

GST_TAG_IMAGE_CREATORTOOL G_TYPE_STRING (Sent by application or Source element,
  for example: "GIMP" or "GStreamer V4L2 - pwc driver")

GST_TAG_IMAGE_XRESOLUTION G_TYPE_FLOAT (dpi - dots per inch)

GST_TAG_IMAGE_XRESOLUTION G_TYPE_FLOAT (dpi - dots per inch)

GST_TAG_CAPTURE_EXPOSURETIME G_TYPE_UINT64 (nanoseconds)

GST_TAG_CAPTURE_FNUMBER G_TYPE_FLOAT (focal ratio)

GST_TAG_CAPTURE_EXPOSUREPROGRAM G_TYPE_SHORT (the following enum:)
  0 - not defined            1- Manual         2- Normal program
  3- Aperture priority    4- Shutter priority
  5- Creative program (biased toward death of field)
  6- Action program (biased toward fast shutter speed)
  7- Portrait mode (for closeup photos with the background out of focus)
  8- Landscape mode (for landscape photos with the background in focus)
  9- Night       10- Back-light    11- Spotlight 12- Snow      13- Beach

GST_TAG_CAPTURE_BRIGHTNESS G_TYPE_FLOAT (APEX, from -99.99 to 99.99)

GST_TAG_CAPTURE_AUTO_WHITEBALANCE G_TYPE_SHORT (the following enum:)
  0- off     1- Auto      2- Sunlight   3- Cloudy    4- Shade
  5- Tungsten    6- Fluorescent   7- Incandescent   8- Flash
  9- Horizon (sun on the horizon)

GST_TAG_CAPTURE_DIGITAL_ZOOM G_TYPE_FLOAT

GST_TAG_CAPTURE_GAINCONTROL  G_TYPE_SHORT (the following enum:)
  0- None  1- Low gain up  2- High gain up  3- Low gain down 4- High gain down

GST_TAG_CAPTURE_CONTRAST G_TYPE_SHORT (from -100 to 100)

GST_TAG_CAPTURE_SATURATION G_TYPE_SHORT (from -100 to 100)

.....there a few more GST_TAG_CAPTURE_ tags we could add in near future, but I
think we could start with these.

btw: those tags are used in Exif and XMP. Almost all tags can be provided by
V4L2 element or could be also provided by OpenMax Camera Class element.


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