[Vorbis-dev] gps tags in vorbis comments
ensonic at hora-obscura.de
Sat Sep 6 10:19:38 PDT 2008
done. How is the decission making process. I can easily add mappings in
gstreamer once its official.
Conrad Parker schrieb:
> These sound useful and standardsy, could you please add/link to
> http://wiki.xiph.org/VorbisComment ?
> 2008/9/3 Stefan Kost <ensonic at hora-obscura.de>:
>> Ralph Giles schrieb:
>>> On Mon, Sep 1, 2008 at 11:23 PM, Stefan Kost <ensonic at hora-obscura.de> wrote:
>>>> is there an official or semiofficial way to store gps location in vorbis
>>>> comments or any ogg file. mp4 and exif store at least:
>>>> - location name (e.g. London, UK)
>>>> - longitude (degree as double), latitude (degree as double), elevation
>>>> (meters) (these three according to WGS84)
>>> I've never seen a semi official tag. There is an official "Location"
>>> tag like you have above. Using the Longitude, Latitude and Elevation
>>> in analogy with exif would be reasonable. Is there a common geotag
>>> format that would put it all on one line?
>> I just defined these as separate tags for gstreamer. the LOCATION vorbistag is
>> mapped to GST_TAG_GEO_LOCATION_NAME. I would be a bit uneasy with having them in
>> LOCATION too, but having a GEO_LOCATION = <latitude> | <longitude> | <elevation>
>> would be okay.
>> * GST_TAG_GEO_LOCATION_NAME:
>> * human readable descriptive location of where the media has been recorded or
>> * produced. (string).
>> * GST_TAG_GEO_LOCATION_LATITUDE:
>> * geo latitude location of where the media has been recorded or produced in
>> * degrees according to WGS84 (zero at the equator, negative values for southern
>> * latitudes) (double).
>> * GST_TAG_GEO_LOCATION_LONGITUDE:
>> * geo longitude location of where the media has been recorded or produced in
>> * degrees according to WGS84 (zero at the prime meridian in Greenwich/UK,
>> * negative values for western longitudes). (double).
>> * GST_TAG_GEO_LOCATION_ELEVATION:
>> * geo elevation of where the media has been recorded or produced in meters
>> * according to WGS84 (zero is average sea level) (double).
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