SUMMARY See Digicam tags written to videos using exiftool extension in other software (e.g. Synology Photos). STEPS TO REPRODUCE 1. Ensure that in Digicam settings metadata is being written using exiftool extension 2. Write any tag to a video file (e.g. mp4 or mov) using Digicam 8.0.0 3. Upload to synology photos and check "information" (=metadata) that is being recognized there OBSERVED RESULT The tag (in my case "Favorit") is indeed written into the video's metadata. (See below extract from exiftool.exe export). However, neither Windows File Details nor Synology Photos recognize the tag in the file. EXPECTED RESULT Since the tag is indeed written into the MP4 file, I was hoping that it is also recognized by other programs (e.g. Synology). SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION Metadata analysis using exiftool.exe: [...] Last Keyword XMP : Favorit Categories : <Categories><Category Assigned="1">Favorit</Category></Categories> Subject : Favorit Tags List : Favorit [...] Hierarchical Subject : Favorit Catalog Sets : Favorit
Well, if extra software are not able to parse XMP contents and import tags written in standard places, we cannot do anything... Gilles Caulier
I suppose tagging photos and videos is a different thing - and I know nothing about it. What I observe however is that both person/face-tags or other tags attached to videos are also not visible in a "standard" software like Windows Explorer (when viewing file details). For photos that is no problem. Is there any opportunity to write the tag somehow differently?
Git commit a5aaceaa533475f768630e13fd0eb03aa4ad2ce7 by Maik Qualmann. Committed on 06/05/2023 at 16:22. Pushed by mqualmann into branch 'master'. write QuickTime itemList to video files M +10 -0 core/libs/metadataengine/exiftool/exiftoolparser_command.cpp M +1 -0 core/libs/metadataengine/exiftool/exiftoolparser_p.h https://invent.kde.org/graphics/digikam/commit/a5aaceaa533475f768630e13fd0eb03aa4ad2ce7
Windows Explorer only supports QuickTime Metadata in video files, not XMP. With the next digiKam-8.1.0 test version we will see if it works. Maik
Thx! Would this potentially cover both MOV and MP4 files?
Git commit 6283610d7a66e7abb219818c589e30b6cee2a432 by Maik Qualmann. Committed on 06/05/2023 at 17:25. Pushed by mqualmann into branch 'master'. more adjustments to Windows Explorer M +3 -1 core/libs/metadataengine/exiftool/exiftoolparser_command.cpp https://invent.kde.org/graphics/digikam/commit/6283610d7a66e7abb219818c589e30b6cee2a432
Git commit 2f58f62568254dd5cecd5ef359caef623a482a76 by Maik Qualmann. Committed on 06/05/2023 at 18:34. Pushed by mqualmann into branch 'master'. add delete QuickTime metadata M +13 -5 core/libs/metadataengine/exiftool/exiftoolparser_command.cpp https://invent.kde.org/graphics/digikam/commit/2f58f62568254dd5cecd5ef359caef623a482a76
Git commit cb257633de0a1da01eda75d4a8305092465b33e4 by Maik Qualmann. Committed on 15/05/2023 at 05:46. Pushed by mqualmann into branch 'master'. disable writing to video QuickTime metadata At the moment we don't have a way to import the metadata in a configurable way. M +4 -3 core/libs/metadataengine/exiftool/exiftoolparser_command.cpp https://invent.kde.org/graphics/digikam/commit/cb257633de0a1da01eda75d4a8305092465b33e4
*** Bug 470641 has been marked as a duplicate of this bug. ***
Hi, Is there any update on mp4 support? Thx
Hi there, Is this still something in the pipeline? Cheers
Do you have an update for this bug ?
Git commit d3631ae2355734c7cf67f76dd5e55fb62b297e5d by Maik Qualmann. Committed on 09/06/2024 at 20:16. Pushed by mqualmann into branch 'master'. first step to support Microsoft video QuickTime metadata M +20 -16 core/libs/metadataengine/exiftool/exiftoolparser_command.cpp https://invent.kde.org/graphics/digikam/-/commit/d3631ae2355734c7cf67f76dd5e55fb62b297e5d
Hey team, Unfortunately this is still an issue. Is there an opportunity to getting this fixed?
I tested it with Windows Explorer, it works. Maik
We write tags in XMP and QuickTime containers. The question is which metadata entry Synology Photos only supports for tags. A sample video that contains tags that are recognized by Synology Photos would be helpful. At the moment we are compatible with Windows Explorer. Maik
Created attachment 178762 [details] tag-missing-in-windows-explorer
I used digikam 8.6.0 to tag this video with a tag called "Favorit". See video: https://drive.google.com/file/d/1c4RWin_WqvP89dcCMA_fDqP3mAUOyNFK/view?usp=sharing The tag is visible using the exif tool: ExifTool Version Number : 12.62 File Name : IMG_20250222_151515.MOV File Size : 21 MB File Type : MOV File Type Extension : mov Last Keyword XMP : Favorit Categories : <Categories><Category Assigned="1">Favorit</Category></Categories> Subject : Favorit Tags List : Favorit Hierarchical Subject : Favorit Catalog Sets : Favorit Category : Favorit But the tag is not visible looking at "Details" in Windows Explorer (see screenshot) You said you are seeing the tag in Windows Explorer? The tag is also not visible in "Synology Photos" - but this might be more of a Synology Photos problem.
Well, the metadata is correctly written to Quicktime Microsoft:Category. If I do it with an MP4 file, it works with Explorer without any problems. Explorer doesn't seem to support MOV files with metadata, at least here under Windows 10. Because I can't set a rating, title or tags with Explorer. I'll test this later with Windows 11. This would be more of a Microsoft problem with supporting the MOV format. Maik
The same thing happens here under Windows 11, Explorer can neither read nor change this metadata. You have to find out for yourself whether there is an extension that makes it possible to change MOV files. There is a lot of information about this on the web, most people have the same problem with MOV files and Explorer. From digiKam's point of view, we can't do anything more. I'm closing the bug now. If there is new information that shows we need to change something, you can reopen it. Maik
I tested it with a sample MOV file from the web, and it works without any problems. It depends on the MOV file whether Explorer supports it. Maik
Can you please try a video from your Apple smartphone that has not yet been edited with a program to see if Explorer can change metadata? Maik
This post has the solution: https://discussions.apple.com/thread/255827435?sortBy=rank The presence of this metadata entry "FullFrameRatePlaybackIntent" prevents Windows Explorer from displaying or changing metadata in Apple Video files. I confirm that after deleting the entry, Windows Explorer displays the metadata correctly. Maik