Questions tagged [metadata]
Metadata is commonly referred to as "data about data", and is often used for cataloging, indexing, and managing files in a computer.
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FFMPEG: "Author" metadata cannot be assigned to a MP4 video file but "Artist" can. What am I doing wrong?
I am trying to assign my name in the "author" metadata tag of a video MP4 file before sending it to someone else. But I can't seem to make it work when I try to verify it afterwards. But it ...
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How to correctly rotate a video with displaymatrix metadata in FFmpeg 7?
I use ffmpeg to overlay data on videos taken with a GoPro 13. I have a set of images taken in other software, which ffmpeg overlays onto the video.
Everything worked fine with ffmpeg 6.1, but after ...
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Find jpg files without Keywords/Subject in Iptc/Xmp and copy them
I have 10s of thousands of JPG photos in multiple sub-folders under a single folder and quite a few of these picture files have no keywords in their metadata.
I want to find a way to scan through all ...
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How can I script filling in missing track number metadata to music files?
I have about 150 albums' worth of .mp3 files I ripped using abcde on Ubuntu 24.04 over a three-week period only to discover after the fact that abcde wasn't including track number metadata, so I can't ...
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Why doesn’t abcde rip track metadata automatically?
I recently spent three weeks ripping a large collection of CDs using abcde (Ubuntu 24.04). I've just discovered that none of them ripped with track metadata, so I can't play any of these albums ...
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Is it possible to set a starting time for a video in ffmpeg without encoding?
If you cut a video with ffmpeg without re-encoding, it will start at the last keyframe before the cut (or the next one after the cut depending on how you did it)
If you encode when you cut, the video ...
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Does copy-on-write (CoW) with BTRFS also apply to metadata such as last access time?
In other words, when I access a file on BTRFS, does information about the previous access time normally still exist somewhere on the file system for some time?
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Forensics to recover the second-to-last access timestamp of a file on BTRFS on HDD?
Does anyone know if there is some way to recover the access timestamp of my file on BTRFS, before the access timestamp which appears currently? Using HDD (not SSD).
Please let me know. I made no ...
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How to delete whole metadata from a foto file with FFmpeg?
Preliminary information: Because of the fact that the original example foto file is my private foto (for the following I will call it short Ofile) I used for this question a cutout:
of it (for the ...
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Sorting Files in Folder and Subfolders [closed]
I need a mean to sort files in the subfolders because it is taking too much time to sort it by folders. I have one folder containing subfolders and those subfolders have their own subfolders.
The tree ...
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Why does a USB NTFS drive on Windows XP show metadata properties but Windows 11 doesn't show them?
I've got an NTFS USB drive with files that, when opened in Windows XP's file explorer, show some meta data under Title and Comments, but when opened in Windows 11 file explorer, those properties are ...
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Sharing/Uploading video and adding metadata before uploading to YouTube with ffmpeg?
Im trying to upload/share a video to my YouTube channel with metadata for example adding title, description (hashtags) and tags before uploading to YouTube. I have my stream key so I use it and there'...
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Is there a Windows 10 (64bit) command line to get font name and version number from uninstalled font files?
I have a pile of old graphics projects I'm consolidating, and they all saved their fonts. So I have many versions of many common fonts. I'd like to rename the files with the actual font name and ...
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How do I change the DPI in a JPG from the command line (eg exiftool) and have the new DPI be recognized by Photoshop?
I am generating jpgs which default to 72dpi when born. I want to change the dpi from the command line. I can use exiftool to change dpi metadata like this:
exiftool -a -XResolution=300 -YResolution=...
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iOS video creation_time values don't match displayed timestamps
The creation_time metadata in videos I download from iCloud don't match the timestamps I see on iCloud. For instance I have a video here whose metadata on my PC says
2025-01-10T21:14:45.000000Z.
But ...
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