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subsurface/core
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Berthold Stoeger cc4f48be3f Metadata: rudimentary support for XMP metadataa in MP4-based videos 
XMP is a media-metadata standard based on XML which may be used
across a variety of media formats. Some video-processing software
writes XMP data without updating the native metadata fields.
Therefore, we should aim at reading XMP metadata and give priority
of XMP data over native fields.

Pros:
	- Support for *all* common media formats.
Cons:
	- XML (complex, verbose, chaotic).
	- Does not even come close to fulfilling its promise of being
	  well defined (see below).

Implement a simple XMP-parser using libxml2. Connect the XMP-parser to
the existing Quicktime/MP4 parser.

First problem encountered: According to the spec, XMP data supposed
to be put in the 'XMP_' atom. But for example exiftools instead
writes an 'uuid' atom with a special 16-byte uid. Implement both,
more options will probably follow.

Second problem: two versions of recording the creation date were found
  1) The content of a <exif:DateTimeOriginal> tag.
  2) The xmp::CreateDate attribute of a <rdf:Description> tag.

Here too, more versions are expected to surface and will have
to be supported in due course (with an obvious priority problem).

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-09-25 14:59:14 -07:00
..
settings
cleanup: do not compare doubles like this
2018-09-25 16:01:39 +02:00
subsurface-qt
Cleanup: pass gasmix by value
2018-08-23 05:16:38 -07:00
android.cpp
Make device enumeration use the device transport data
2018-08-27 22:10:38 -07:00
btdiscovery.cpp
BLE: add Teric to list of auto-detected Shearwater computers
2018-09-12 14:00:49 -07:00
btdiscovery.h
Cleanup: Use QString as parameter for [get|save]BtDeviceInfo()
2018-02-26 08:52:34 +01:00
checkcloudconnection.cpp
prefs: git_local_only is not a preference
2018-09-10 16:26:49 -07:00
checkcloudconnection.h
Remove self-include of core/checkcloudconnection.h
2017-12-06 02:23:47 +01:00
cloudstorage.cpp
core/settings ... : remove qPref* includes in qPref.h
2018-09-11 17:25:00 -07:00
cloudstorage.h
prefs: cloud_new_password is not a preference
2018-09-10 16:26:49 -07:00
CMakeLists.txt
Metadata: rudimentary support for XMP metadataa in MP4-based videos
2018-09-25 14:59:14 -07:00
cochran.c
core: replace (void) with UNUSED(x) and include ssrf.h
2018-05-24 08:34:14 -07:00
cochran.h
Cochran import: better support for older models
2017-05-31 21:53:00 -07:00
color.cpp
Cleanup: silence clang missing braces warning in core/color.cpp
2018-09-01 11:31:18 -07:00
color.h
Cleanups to core/color.[c|hpp]
2018-07-18 02:09:15 +03:00
compressibility.r
Move subsurface-core to core and qt-mobile to mobile-widgets
2016-04-04 22:33:58 -07:00
configuredivecomputer.cpp
Actually tie in the new libdivecomputer IO model to open the dive computer device
2018-04-24 17:54:08 -07:00
configuredivecomputer.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
configuredivecomputerthreads.cpp
core: Change Q_UNUSED to no parameter name
2018-05-21 12:48:04 -07:00
configuredivecomputerthreads.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
connectionlistmodel.cpp
Mobile/remember DCs: try to match device names
2018-09-23 11:49:30 -07:00
connectionlistmodel.h
core: add indexOf member to ConnectionListModel
2018-08-11 11:14:22 -07:00
datatrak.c
Core: remove dive.h from files that don't need it
2018-05-14 10:13:39 -07:00
datatrak.h
Cleanup: const-ify functions taking dives and divecomputers
2018-08-23 14:41:01 -07:00
deco.c
Cleanup: const-ify functions taking pointers to events
2018-08-23 05:16:38 -07:00
deco.h
Cleanup: const-ify functions taking pointers to events
2018-08-23 05:16:38 -07:00
device.c
core: replace (void) with UNUSED(x) and include ssrf.h
2018-05-24 08:34:14 -07:00
device.h
Core: remove dive.h from files that don't need it
2018-05-14 10:13:39 -07:00
devicedetails.cpp
Implement OSTC4 specific settings
2017-05-04 10:50:15 -07:00
devicedetails.h
Implement OSTC4 specific settings
2017-05-04 10:50:15 -07:00
display.h
Make device enumeration use the device transport data
2018-08-27 22:10:38 -07:00
dive.c
Dive media: on import read metadata only once
2018-09-19 14:44:34 -07:00
dive.h
Dive media: on import read metadata only once
2018-09-19 14:44:34 -07:00
divecomputer.cpp
core: remove SettingsObjectWrapper and update qPref calls
2018-08-15 16:11:39 -07:00
divecomputer.h
Dive computers: turn QMultiMap into sorted vector
2018-06-17 06:53:13 +09:00
divelist.c
Core: split process_dives() in post-import and post-load versions
2018-09-23 11:50:53 -07:00
divelist.h
Core: split process_dives() in post-import and post-load versions
2018-09-23 11:50:53 -07:00
divelogexportlogic.cpp
divelogexportlogic: show warning on missing 'theme' folder
2018-08-17 00:58:01 +02:00
divelogexportlogic.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
divesite-helper.cpp
Translations: unify gettextFromC::tr() and QObject::tr()
2018-07-04 05:33:31 +08:00
divesite.c
core: remove clang warning in divesite.c
2018-07-11 12:59:33 +02:00
divesite.h
Tags for geo references: Nicer look, translations and warning message
2017-10-17 06:12:07 -04:00
divesitehelpers.cpp
Cleanup: fold core/helpers.h into core/qthelper.h
2018-06-04 08:50:10 -07:00
divesitehelpers.h
Cleanup: remove all override modifiers
2018-08-01 06:30:00 -07:00
downloadfromdcthread.cpp
Desktop/remember DCs: move non-UI-specific code into the core layer
2018-09-23 11:49:30 -07:00
downloadfromdcthread.h
Make device enumeration use the device transport data
2018-08-27 22:10:38 -07:00
equipment.c
Cleanup: user properly typed pointers
2018-08-23 05:21:08 -07:00
errorhelper.c
Make report_error() reentrant
2018-01-31 14:47:26 +01:00
exif.cpp
Coding-style: remove superfluous parentheses
2018-02-17 19:38:52 -08:00
exif.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
file.c
Parse: pass dive_table argument to parse_file()
2018-08-23 10:17:12 -07:00
file.h
Parse: pass dive_table argument to parse_file()
2018-08-23 10:17:12 -07:00
format.cpp
Cleanup: Slightly shorten code in vqasprintf_loc()
2018-04-09 11:29:43 -07:00
format.h
Cleanup: Move *_loc formatting functions into new format.cpp file
2018-04-09 11:29:43 -07:00
gas-model.c
Cleanup: pass gasmix by value
2018-08-23 05:16:38 -07:00
gaspressures.c
Cleanup: const-ify functions taking pointers to events
2018-08-23 05:16:38 -07:00
gaspressures.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
gettext.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
gettextfromc.cpp
Localization: make cache thread safe and robust against use-after-free
2018-06-24 20:31:14 +02:00
gettextfromc.h
Localization: remove gettextFromC::instance()
2018-06-24 20:31:14 +02:00
git-access.c
prefs: git_local_only is not a preference
2018-09-10 16:26:49 -07:00
git-access.h
prefs: git_local_only is not a preference
2018-09-10 16:26:49 -07:00
gpslocation.cpp
cleanup: remove more GPS webservice code
2018-09-24 07:20:25 -07:00
gpslocation.h
core: fix connect call
2018-09-24 07:20:25 -07:00
imagedownloader.cpp
Dive media: Extract thumbnails from videos with ffmpeg
2018-07-28 15:31:25 -07:00
imagedownloader.h
Dive media: Extract thumbnails from videos with ffmpeg
2018-07-28 15:31:25 -07:00
import-cobalt.c
core: replace (void) with UNUSED(x) and include ssrf.h
2018-05-24 08:34:14 -07:00
import-csv.c
Core: split process_dives() in post-import and post-load versions
2018-09-23 11:50:53 -07:00
import-csv.h
Make a few functions of static linkage
2018-01-08 09:52:55 +02:00
import-divinglog.c
Cleanup: pass gasmix by value
2018-08-23 05:16:38 -07:00
import-shearwater.c
Remove unnecessary {}
2018-05-27 23:18:01 +03:00
import-suunto.c
DM5 import: support for larger sample size
2018-06-15 17:45:33 -07:00
ios.cpp
Make device enumeration use the device transport data
2018-08-27 22:10:38 -07:00
isocialnetworkintegration.cpp
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
isocialnetworkintegration.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
libdivecomputer.c
Actually create a UUID when creating a dive site during download
2018-09-22 14:17:24 -07:00
libdivecomputer.h
Add support for opening a DC_TRANSPORT_USBSTORAGE stream
2018-08-27 22:11:05 -07:00
liquivision.c
core: replace (void) with UNUSED(x) and include ssrf.h
2018-05-24 08:34:14 -07:00
load-git.c
cleanup[1/6]: do not set userid/save_userid_local from storage
2018-09-11 15:38:20 -07:00
macos.c
macOS: always list 'FTDI' as a serial connection
2018-09-24 18:51:21 +02:00
membuffer.c
Localization: Make Qt's locale-aware formatting accessible from C
2018-03-05 16:23:55 +01:00
membuffer.h
Add usage documentation for membuffer helper functions
2018-04-10 08:18:32 -07:00
metadata.cpp
Metadata: rudimentary support for XMP metadataa in MP4-based videos
2018-09-25 14:59:14 -07:00
metadata.h
Metadata: extract duration fom QuickTime/MP4-style containers
2018-07-14 08:32:30 +02:00
metrics.cpp
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
metrics.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
ostctools.c
Core: introduce new subsurface-string header
2018-05-14 10:13:39 -07:00
parse-xml.c
Trivial: un-static function-local buffer
2018-09-22 14:44:34 -07:00
parse.c
cleanup[1/6]: do not set userid/save_userid_local from storage
2018-09-11 15:38:20 -07:00
parse.h
Parser: move match() into core/parse-xml.c
2018-08-30 13:32:09 -07:00
planner.c
Cleanup: const-ify functions taking pointers to events
2018-08-23 05:16:38 -07:00
planner.h
Cleanup: pass gasmix by value
2018-08-23 05:16:38 -07:00
plannernotes.c
Planner: fix display of "overlapping dives" message
2018-09-12 14:17:55 -07:00
pluginmanager.cpp
Unused code: remove PluginManager::socialNetworkIntegrationPlugins()
2018-01-10 16:45:42 +01:00
pluginmanager.h
Unused code: remove PluginManager::socialNetworkIntegrationPlugins()
2018-01-10 16:45:42 +01:00
pref.h
qPref: add mobile_scale preference
2018-09-25 15:58:17 +02:00
profile.c
Profile: fix SAC calculation for air dives
2018-09-10 14:23:59 -07:00
profile.h
Cleanup: const-ify functions taking pointers to events
2018-08-23 05:16:38 -07:00
qt-ble.cpp
qt-ble: re-organize how we pick the GATT characteristics to read and write
2018-09-24 17:12:58 -07:00
qt-ble.h
qt-ble: set up infrastructure for better preferred service choice
2018-09-23 17:29:05 -07:00
qt-gui.h
core,tests: change qml register function
2018-09-11 17:22:58 -07:00
qt-init.cpp
Set desktop file name to avoid a broken icon under KDE Wayland
2018-09-09 18:44:40 -07:00
qthelper.cpp
core: remove QSettings from qthelper
2018-08-25 11:49:47 -07:00
qthelper.h
For media file open dialog add different file filters
2018-07-15 09:38:12 -07:00
qtserialbluetooth.cpp
Make sure our libdivecomputer custom IO interfaces have sleep functions
2018-07-13 11:25:38 -07:00
save-git.c
cleanup[3/6]: do not save the userid any more
2018-09-11 15:38:20 -07:00
save-html.c
Cleanup: constify get_units()
2018-09-07 11:03:30 -07:00
save-html.h
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
save-xml.c
Optional anonymization upon export
2018-09-13 08:16:54 -07:00
serial_ftdi.c
serial_ftdi: use Sleep() on Win32
2018-09-12 17:18:47 -07:00
sha1.c
Move subsurface-core to core and qt-mobile to mobile-widgets
2016-04-04 22:33:58 -07:00
sha1.h
Move subsurface-core to core and qt-mobile to mobile-widgets
2016-04-04 22:33:58 -07:00
ssrf.h
mobile: add timer to measure startup.
2018-05-30 21:47:07 -07:00
statistics.c
Cleanup: const-ify functions taking dives and divecomputers
2018-08-23 14:41:01 -07:00
statistics.h
Cleanup: fold core/helpers.h into core/qthelper.h
2018-06-04 08:50:10 -07:00
strndup.h
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
strtod.c
Core: introduce new subsurface-string header
2018-05-14 10:13:39 -07:00
subsurface-string.h
Core: don't inline rarely used function
2018-05-14 10:13:39 -07:00
subsurfacestartup.c
qPref: add mobile_scale preference
2018-09-25 15:58:17 +02:00
subsurfacestartup.h
Fix ownership issues in preferences code
2017-11-25 07:41:09 -08:00
subsurfacesysinfo.cpp
Random whitespace cleanup
2017-05-27 11:07:20 -07:00
subsurfacesysinfo.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
taxonomy.c
Fix two bugs in taxonomy_set_country
2017-10-07 08:16:53 -07:00
taxonomy.h
Add taxonomy helper functions
2017-10-04 08:05:09 -07:00
time.c
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
uemis-downloader.c
Core: introduce new subsurface-string header
2018-05-14 10:13:39 -07:00
uemis.c
Core: remove dive.h from files that don't need it
2018-05-14 10:13:39 -07:00
uemis.h
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
units.h
core: removed clang warnings from units.h
2018-05-18 21:27:37 +03:00
unix.c
Make device enumeration use the device transport data
2018-08-27 22:10:38 -07:00
version.c
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
version.h
Move subsurface-core to core and qt-mobile to mobile-widgets
2016-04-04 22:33:58 -07:00
videoframeextractor.cpp
Dive media: Extract thumbnails from videos with ffmpeg
2018-07-28 15:31:25 -07:00
videoframeextractor.h
Dive media: Extract thumbnails from videos with ffmpeg
2018-07-28 15:31:25 -07:00
webservice.h
Add SPDX header to remaining core files
2017-04-29 13:32:55 -07:00
windows.c
core/windows.c: write logs to the user path
2018-09-03 13:29:03 -07:00
windowtitleupdate.cpp
Cleanup: Make WindowsTitleUpdate a global object
2018-07-30 13:55:23 -07:00
windowtitleupdate.h
Cleanup: Make WindowsTitleUpdate a global object
2018-07-30 13:55:23 -07:00
worldmap-options.h
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
worldmap-save.c
Core: remove dive.h from files that don't need it
2018-05-14 10:13:39 -07:00
worldmap-save.h
Add SPDX header to core C files
2017-04-29 13:32:55 -07:00
xmp_parser.cpp
Metadata: rudimentary support for XMP metadataa in MP4-based videos
2018-09-25 14:59:14 -07:00
xmp_parser.h
Metadata: rudimentary support for XMP metadataa in MP4-based videos
2018-09-25 14:59:14 -07:00