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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 command to combine mp3 file and embedded album art image file metadata into a video

my below ffmpeg command works for combining 1 audio file with 1 image file into a video. ffmpeg -loop 1 -framerate 2 -i "C:\Users\marti\Videos\ig_sf_6.5.24_highlights\apple image.jpg" -i ...
Martin's user avatar
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45 views

How to create a compatible encoding for the Blackmagic Media Express application using ffmpeg

I'm using the Blackmagic Media Express application frequently but now I'm stuck trying to transcode files using ffmpeg that will be able to play in the BME app. It seems that the BME application is ...
DrBob's user avatar
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1 answer
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How to use ffmpeg to convert a flac file to alac and preserving all metadatas?

I use this loop to convert flac to alac : for i in *.flac; do ffmpeg -i "$i" -y -vn -c:a alac "${i%.flac}".m4a; done But some tags are not exported. I tried to use the -...
AxZxP's user avatar
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Video metadata takes forever to load, can it be cached?

I organize a vast amount of videos (on Windows 11 using Windows Explorer or Directory Opus), and since these two can't be set to cache the metadata, I was wondering if Windows or a file system or ...
Bricktop's user avatar
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2 answers
157 views

Removing the title of MKV files with JMkvpropedit

I am trying to remove the title of a batch of MKV files with JMkvpropedit, because I want VLC to display the "Windows" name of the file at the beginning of the video instead of the eventual &...
oli_vi_er's user avatar
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1 answer
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FFMPEG cant render from transparent webm a transparent png frame

I want export every frame like original source, in webm video is alpha/transparent video track, and if I try export with my base command will export with black background. ffmpeg \ -hide_banner \ -...
aClassicKoder's user avatar
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36 views

How to Display "Keywords" Property in Windows File Explorer's Details View Columns?

Following this post, I have a PowerShell script that uses ExifTool to add metadata to PDF files. Specifically, it adds a tag to a PDF's "Keywords" property. The script is available here on ...
Foad's user avatar
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How to edit Opus comments?

Is there any tool that can edit Opus comments? In particular, I want to add multiple METADATA_BLOCK_PICTUREs to an Ogg/Opus file. opusenc can't edit comments. EasyTag corrupts Ogg files. ffmpeg doesn'...
Matthew's user avatar
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15 views

Metadata is not being added when explicitly defined

when running the below command ffmpeg -i '.\input - s01e01.mp4' -metadata iTunEXTC="mpaa|TV-Y|300|BecasueReasons" '.\output - s01e01.mp4' the metadata field is not added.
Harroguk's user avatar
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HDR Metadata Tag for MacOS TV App / Apple TV

When importing Media in the MacOS TV App there have to be certain Tags in the Metadata of the Mp4/M4v file so that TV registers it as 4K. I want to have imported Movies with HDR10, HDR10+ or Dolby ...
Omega3komma3's user avatar
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How to divide the video into 3 parts, adjust the speed and merge them?

I have a video rendering code but I don't know how to divide the video into 3 parts 1-5s 6-10s and the rest to adjust the speed and then combine it. ffmpeg -y -i "{input}" -ss 1 -...
Nguyễn Trọng Đông's user avatar
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How do I change the metadata items which scroll when playing mp3s in Windows Media Player without losing any of the track's information?

I would like to show the following metadata items "Title", "Year" and "Contributing artists" in that sequence, not "Title", "Contributing artists" and ...
Geoffreyb Pontin's user avatar
1 vote
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53 views

Strange encoding of non-latin characters in Microsoft Word metadata embedded in a PDF file

I have a PDF file created from a Microsoft Word document that contains a block: 20 0 obj << /Author ( 52 &>;AB>9) /Producer (Microsoft: Print To PDF) /Title (Microsoft Word - ^T>:C&...
Dima Chubarov's user avatar
1 vote
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55 views

Quickly retreive 512px image thumbnail/preview from 10GB+ PSB on MacOS?

Is it possible to quickly (milliseconds) extract a 512px image thumbnail/preview from large images (10GB+ PSBs) on MacOS? Use Case I need to quickly get an image preview/thumbnail (~512px) of a batch ...
Chris's user avatar
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208 views

How do I compile ffmpeg so that "-map_metadata -1" works.?

I just tried the (static) ffmpeg build from https://johnvansickle.com/ffmpeg/ and I also tried the ffmpeg build that comes with my Linux Mint 21.2 distro and they both were able to remove the metadata ...
BongoR's user avatar
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1 answer
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Cannot change Star-Rating (or change any meta-data) of files even though I own them

So I have an external Drive with basically all my irreplaceable media on it (Photos, Videos, etc.) and I cannot alter the Metadata of these files even though I gave myself full ownership. I can use ...
pr0paGandhi's user avatar
1 vote
0 answers
55 views

How to differentiate between directories created manually and directories created by installed programs?

On my Ubuntu laptop, I want to differentiate between directories I created manually and directories created by programs that I install for coding purposes (in Python). I have searched a lot, but it ...
selmanioui's user avatar
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93 views

How do I prevent this FFmpeg scale command from removing the 'Date taken' metadata?

How do I prevent this FFmpeg command from removing the 'Date taken' (and other) metadata from JPG photographs? ffmpeg -i "Input.JPG" -vf scale=iw*.5:-1 -update true "Output.jpg" ...
DaveF's user avatar
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Incorrect movie Keys metadata with ffmpeg

It seems ffmpeg erroneously copies keys metadata to UserData atom, and macOS 14 QuickTime player or Photos do not read it. For example: The input.mov has Keys tags for Author, Title, Description, ...
wywh's user avatar
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18 votes
7 answers
6k views

Which protocol to send the most possible data through satellite?

I am working on a project with an Internet connection through satellite with only 130kB/day (if I use more it is very expensive). I want to send as much "useful" data as possible every day, ...
Blacksad's user avatar
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1 vote
1 answer
1k views

How to properly set timestamps of a target file in ffmpeg?

I'm using ffmpeg to concat multiple files into one consolidated file, but the resulting timestamp of the file created naturally falls on the time of this operation. I'm instead trying to set the ...
Daneolog's user avatar
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1 answer
264 views

Safely strip metadata from images in a folder, add a value to some tags

I have a directory structure that contains a lot of JPEG/JPG, PNG, SVG, and WEBP images in several subdirectories. I want to strip all metadata from these images except anything that would be ...
Hashim Aziz's user avatar
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0 answers
342 views

Change sample rate in OggOpus metadata (48 kHz to 44.1 kHz) without re-encoding

I have many Opus encoded files that play high pitched in any player because somewhere in the metadata they are marked as 48 kHz (or unmarked but assumed to be 48 kHz) but are in fact 44.1 kHz. If I ...
Nick Bailuc's user avatar
8 votes
4 answers
3k views

Is there a way to get file description field from the file metadata using the command line?

I'm looking for a way to use the command line on windows 10 and 11 to read the File description field from the metadata of a file. The value of many other fields can be get using wmic as described in ...
ridilculous's user avatar
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198 views

How is it possible to edit video duration on an mp4?

I recently came across a few videos that have their duration length edited. Some increase as the video is playing; for example when you start the video the duration reads 0:01/0:02, and as the video ...
infernal infernal 's user avatar
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247 views

ffmpeg keep all video metadata

I have a video with incorrect video metadata which is messing up the color. Here is the original video's stream 0:0 Metadata: Stream #0:0(und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(...
Huston's user avatar
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254 views

Rotation metadata not changing when encoding with ffmpeg

[UPD: Checking metadata with exiftool -rotation] Been struggling for a few days, here is the setup: ffmpeg -i input.mp4 -c copy -metadata:s:v:0 rotate="-90" output.mp4 changes the output....
Vlad Sutyrin's user avatar
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98 views

How to find files which I open the most?

Is there a way to figure out which files I open most often on my computer? For example, a simple count of how many times a file has been opened in the past N days would be a good start. Finding a way ...
JohnA's user avatar
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1 answer
67 views

Identifying information contained in Adobe files

For many file formats, there are typical types of metadata that one may want to erase if they do not want personally-identifying information to be associated with the file. EXIF data in image files is ...
Mark Wan's user avatar
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0 answers
239 views

How do you use Ffmpeg to give unique title/track names (%02d) using -metadata when spliting a .mp3 file?

(ffmpeg version 6.0-essentials_build-www.gyan.dev) I've successfully split a .mp3 file & given it unique names using "XX_%02d.mp3" in the following command: XX_01, XX_02 etc. How do I ...
DaveF's user avatar
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1 answer
177 views

Give Windows 10 music metadata to non-audio files/directories

I currently have a large directory with a ton of subdirectories, each one has an MIDI file, PDF (sheet music), and MP3. I'd like to add metadata to these files (such as artist name, song title, album, ...
Nash Anderson's user avatar
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0 answers
340 views

Add ffmpeg metadata to .mp4 that will be visible in Windows Explorer

I'm starting to convert my large and scattered video library to HEVC, using ffmpeg. I'd like to add a metadata tag that can be displayed as a column in Windows Explorer, so I can keep track of which ...
John Christofolakos's user avatar
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1 answer
2k views

Video MP4 missing metadata

I can play the video just I don't have the metadata like video thumbnail or frame width length etc can't be seen win windows explorer and properties detail Is there anyway to recover such MP4 to have ...
Prince Charming's user avatar
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0 answers
713 views

How to set H.264 metadata in ffmpeg (fixed_frame_rate_flag)

I would like to set the fixed_frame_rate_flag in the H.264 metadata so that MediaInfo will report a constant frame rate when scanning the file. Supposedly I can set that flag using the bitstream ...
Danny's user avatar
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0 answers
617 views

FFMPEG keeps HDR10 data in a sdr tone-mapped output

Im trying to convert a prores file with embedded hdr10 metadata to a sdr h264 and h265 tonemapped version. but what ever I try the HDR data from the prores file is alway in the output file. Im running ...
Rick's user avatar
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3 votes
0 answers
390 views

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 -...
Ali Ent's user avatar
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0 votes
1 answer
322 views

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 ...
KenJes's user avatar
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2 votes
0 answers
703 views

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 ...
576i's user avatar
  • 443
1 vote
1 answer
169 views

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 ...
Amessihel's user avatar
  • 355
0 votes
1 answer
50 views

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' &...
Luciana's user avatar
1 vote
0 answers
420 views

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: ...
Rogue's user avatar
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0 answers
168 views

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 ...
user1785937's user avatar
1 vote
1 answer
458 views

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....
Keith Bennett's user avatar
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0 answers
627 views

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?
Fylixr's user avatar
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0 answers
41 views

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 ...
Lukáš Řádek's user avatar
1 vote
2 answers
2k views

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 ...
einpoklum's user avatar
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2 answers
1k views

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 ...
aparente001's user avatar
0 votes
1 answer
603 views

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 ...
shot1ko's user avatar
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0 answers
1k views

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 ...
Kajlinko's user avatar
1 vote
1 answer
2k views

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 ├───...
JohnA's user avatar
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