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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How to extract metadata from archive file, then use it to reconstruct original archive file from extracted files?
How can the metadata from a archive file (e.g. ZIP) be extracted, in such a way that the original archive file (byte-for-byte) can be reconstructed from the extracted files?
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ffmpeg `-movflags use_metadata_tags` won't copy album cover metadata
I want to edit a mp3 file using ffmpeg while keeping the metadata. I've searched how to keep the metadata and found this link. It is said to use -movflags use_metadata_tags.
ffmpeg -i input.mp3 -...
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How to use FFmpeg to modify metadata downmix levels of AC3 file
I'm trying to use FFmpeg to modify a metadata called "downmix levels" of an existing AC3 file (Dolby Digital surround sound file)
I have tried with at least a million different combinations ...
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Using FFMPEG to record a radio stream, how do I save the metadata into a second file
I'm trying to record a radio station for a bit over four hours with FFMPEG so I can listen to the charts with no cost for mobile data later.
Like this, which works fine:
ffmpeg -i <STREAM URL ...
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Why does the keyword metadata not display in Acrobat Reader, but does in other readers?
A PDF generated by Microsoft PowerPoint 2019 has metadata, anonymized below:
/Keywords(Xxxxx;YYY yyyyyyyyyyyyy)
Google Chrome and FireFox PDF.js, evince readers and even exiftool will display the ...
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Why can't I see 'date_time_original' in all files?
I have a process at work in which I have to request clients to send photos of their cars to check a certain attribute. To send the photos, they have an on-line contact form (in its 'desk version' &...
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FFMPEG produces video without duration when piping from stdin
I'm piping jpegs into ffmpeg with -i - flag to produce a video.
I'm generating jpegs on the fly and outputting it to stdout. The resulting video doesn't seem to have duration information.
I know the ...
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Is it possible to open a TAR file without a header and metadata?
I am trying to open a TAR file without a header containing the file information and other metadata. I know for certain this is a TAR file. Running xxd and head on the tar gives me the following:
...
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FFmpeg command line not working as expected: Subtitles set as “dvdsub” and audio is not AAC as specified in the command
I want to encode an film but I have some problems:
The subtitles are converted to dvdsub. If I play the file in VLC the subtitles getting overlapped. In every other player this not happend (like ...
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MusicBrainz Picard not writing album directory name
I am new to MusicBrainz Picard and am trying to use it to write the correct album directory name and song file names of files ripped from a CD that is unrecognized by Asunder (which is using gnudb....
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Keeping metadata and album art
I'm trying to convert aac 320kbps to mp3 320kbps but keeping album art and meta data bc I just want to convert the file extension. Is there a way to keep meta data and album art while converting?
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Digital archive - solution with metadata
I am in charge of a small digital archive and I am trying to figure out how to manage it.
I have another archive of my owm, but since I am a photographer, I am spoiled by EXIF & IPTC.
The other ...
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How do I retrieve a PDF page's boxes info?
I know PDFs have various "boxes" defined for their pages: Media box, bleed box, art box etc.. But - typical PDF viewers in Linux don't seem to show these boxes, nor list their dimensions and ...
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MS Word: File -> "Edit Property" to change author not listed
I'd like to edit the author name in a Word doc. I go to "Info," right-click the author name, but "Edit Property" is not listed. What to do?
(running Professional Plus 2016 on ...
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How to add GPS data to video (geotag it)?
I want to publish/upload 360 panoramas via Google Streetview Studio. To do this I'm required to have:
Geotagged video exported from the camera
.GPX file
I have geotagged 360 panoramas instead of the ...
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Retrieving 'Creation Date' metadata from a Word file that has been written to PDF?
I have recently received a letter as a PDF document. The letter date does not match the file metadata, but I suspect the original letter was written in Word.
Is there a way to extract the date the ...
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Can you detect silent parts in a mp4 by inspecting the file structure?
So I've been looking into the mp4 file structure a bit and there seems to be quite a lot to it.
And from what I understand, this is how things are laid out.
video.mp4
├───general file metadata
├───...
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FFmpeg does not copy over chapter atoms when I try to remove subtitles
I have some videos encoded from The Criterion Collection, and their videos use these things called "chapter atoms". What is really odd is that ffprobe does not detect these. I assume that ...
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Openstack Nova metadata server randomely fails to provide data to new hosts
This is a repost of a question I asked on launchpad and for which I have been out of luck so far. Maybe one of you has an idea on how I can tackle it.
The metadata server of OpenStack (Zed) Nova fails ...
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Anchor build error cargo metadata (os error 123)
I started a brand new project on Windows x64.
When i'm trying to do anchor build it is not working and I get the following output:
Failed to obtain package metadata: 'cargo metadata' exited with an ...
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How can I add dummy bytes to a file? [duplicate]
I am on Windows 11 and I basically care about making the file (a .bin file) seem larger than it is without augmenting the file's function.
I have a 524,288 byte-sized file and I want to make it 4,194,...
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How can ffmpeg concat MP3s with full metadata incl. cover art?
Audio books inconveniently split into dozens of MP3s (with spaces in their names) should be merged into one MP3 in a subdirectory (in which ffmpeg version 4.2.7-0ubuntu0.1 is invoked), without time-...
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How to specify multiple ffmpeg stream specifier metadata tag keys?
How do I specify multiple stream specifier metadata tag keys?
For example, this copies the video from the input to the output and only selects those audio tracks that are in English (there are two, ...
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Demux video and KLV data from MPEG-TS stream, frame-by-frame, in sync
I need to demux the video frames and KLV data from an MPEG-TS stream in sync, frame-by-frame.
The following command to demux the KLV data and outputs a text file with the KLV data.
gst-launch-1.0 ...
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135
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compressing media files while preserving metadata
I have tons of phone media backup, and I want to reduce their size by compressing them.
For example compressing video files by encoding them to x265 codec, and for the photo files to lossless JPEG, ...
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`ffprobe` is 12 times slower than `metaflac`. How to speed up `ffprobe`?
On a small FLAC folder of 1593 files, ffprobe takes over 12 times longer to run than metaflac. How to speed up the single-threaded performance of ffprobe?
I tried to tell ffprobe to do the same and ...
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What file types can a chromebook run?
Considering that on my school chromebook, (.exe, .targz, .rar, etc) file types cannot be run, i want to know what filetypes the apps are from in the playstore, since i do not have direct access to ...
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Is it possible to rename file properties in Windows?
QUESTION
Is there any way to rename a file property in Windows (i.e. change a property's display name)?
EXAMPLE
Canonical (internal) Name
CURRENT Display Name
DESIRED Display Name
System.Video....
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Does SystemBack application full restore option also restore user files except of system files
my question is simple I am using systemback in an ubuntu server to prevent server from failing and easily restore back. My question now is the option full restore point restore also user files and ...
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How to copy files in File Explorer while preserving all Metadata attributes: Including Last Accessed Date, Modified Date, etc
I have scoured superuser for an answer, and have found similar questions, but none of them talk about preserving the Last Accessed Date. I have already wanted to archive all the last accessed dates on ...
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Does MacOS locally store information about external drives?
I used a borrowed Mac to transfer sensitive data directly between two USB thumb drives. Ideally, I'd like to not leave a single trace of the files and transfers on the borrowed Mac, but I understand ...
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Windows 10 "Last Accessed" Metadata does not update when I open the file, and says that it was last accessed 30 minutes ago (which I did not)
Windows 10's "Last Accessed" metadata property is very weird. I'd like to just disable it from changing on all the files on my computer completely for archival purposes, and I searched far ...
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Remove Metadata Tags from Videostream with ffmpeg
I am trying to remove the language metadata tag from the video stream with ffmpeg and leave everything else untouched.
My code is:
ffmpeg -i "input" -metadata:s:v:0 language= -c:v copy -c:a ...
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Is it possible to add text (e.g. a transcription or lyrics) to AMR or OPUS sound files?
Is it possible to add text (e.g. a transcription or lyrics) to AMR or OPUS sound files? Googling for this mostly returns transcription services, not whether there are defined meta data fields for this ...
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How to set `kMDItemWhereFroms` extended attribute so it shows up in Finder?
I have fetched a file from the internet in Python and would like to save the URL that the file came from. According to this question from 2010, I would expect this using pyxattr to work:
import xattr
...
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Metadata in the windows file explorer
Windows file explorer can show metadata for certain image or movie files, but not documents (pdf, epub) or executables. I have to use external tools like Metadata++. Is there a way to integrate a ...
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What C calls does mdls use? [closed]
I am hoping to get mdls information from C calls, as I am using a different programme's FFI to make C calls. (In particular, I am after the kMDItemContentTypeTree key.) I have tried using getxattr, ...
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Save and restore file metadata (xdelta, open-vcdiff)
Is it possible to save and restore file metadata (specifically last time modified timestamp) using xdelta/open-vcdiff ? If no, is there any program that would help me to save/restore metadata (windows)...
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When a PDF-file created in IOS is e-mailed to a Windows recipient, will the metadata always be exactly the same?
Specifically I'm interested in the fields "creator" and "producer".
I've made a small experiment mailing a file to and from a Mac, suggesting it will be changed in the Mac, but I'...
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With ffmpeg can I move a metadata value to a different metadata item?
Is there a way in ffmpeg to copy one metadata item in the input file to a different metadat item in the output file?
Like copying Media created to Date created.
Happy Trails All
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How to add metadata to subtitle?
I'm trying to add language metadata to existing external .ass subtitles, but it doesn't seem to work. I'm using ffmpeg -i input.ass -map 0 "-metadata:s:s:0" "language=eng" "-...
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aac files do not show metadata in explorer
Audio files that appear .aac per the extension will not show information in file explorer in the "Artist", "Title", etc columns when the folder is setup as an "audio" ...
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After an MP3 file has downloaded is it possible to see where it was downloaded from?
Is it possible to see where a MP3 file was downloaded from? Like if the file was downloaded from Google, Safari or other sites?
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Is it possible to recover past metadata history for an MP3 File?
Currently trying to figure out and see if it's possible to pull up all previous metadata information on an MP3 to see where it was like downloaded from & what did the file look like before editing ...
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How to command ffmpeg to output metadata received on stream
I use ffmpeg to receive an RTSP stream from a security camera. There are 3 sub-streams from the camera:
Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 2592x1944 [SAR 1887:1888 ...
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"Date Modified" and "Date Created" fields seem to be reversed in File Explorer (Win 10)
I've noticed this for quite a long time on the files in my libraries (documents, pictures, videos, you name it). When I right click the details bar in a File Explorer window to view more metadata ...
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Files copied from Windows samba share to Linux file system does not retain date modified metadata
I copied my entire photo library from a Windows Samba share mounted in fstab, into a local directory on my Ubuntu Linux machine using the terminal.
cp /sambashare/photos /localdisk/photos
Sadly this ...
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Do audiofiles contain digital footprint which enables to trace back to the PC where the audiofile got downloaded and edited?
I'm using windows10 os on my pc. so i downloaded few audio files from a website which needs my email to login. My first question is - how to see if those audiofiles contains my email which i used to ...
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Create slideshow with date as caption automatically
I want to create a slide show of photos and want the create-date of each image to appear at the bottom when the image is being shown in the slide show.
Is there a way I can automate this using ...
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What is the limit for how many characters of metadata can be saved in the comments metadata of an MP4 file?
Suppose I have an MP4 file nd I want to add lots of info into the comments section.
What is the character limit for the comments section of MP4 metadata?
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