Questions tagged [metadata]

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Filtering video and adding metadata in one step failed

I want to filter a video stream -vf crop=300:ih,mpdecimate and add metadata for it to the output video: -metadata:s:v:0 rotate=90 This command filter it, but the metadata are NOT added: ffmpeg -to 6 ...
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How can I build a MOV (QT-rle) file with minimal unnecessary features?

I understand that my title requires further specification, so allow me to elaborate. I recently finished a model in Blender and rendered 1000 frames to PNG with alpha. The total size was roughly 2 GB ...
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DaVinci Resolve 16 - Can you embed markers as chapters into the rendered metadata?

In DaVinci Resolve 16, I see that you can edit the Metadata and that will get embedded into the mp4 container. I also noticed that if an mp4 has embedded Chapters that Resolve doesn't recognize those ...
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How can I calculate maxCLL of an HDR clip?

I'd like to calculate the maximum content light luminance, the peak brightness level, of an HDR10 video. Preferably on Linux.
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How can I get timecode start times and chapter names as plain text from a video which has chapter markers?

Source: Quicktime movie or MP4 container which has chapter markers. Intended output: Plain text for use in YouTube or similar services. Chapter start time code as (HH:)MM:SS at the beginning of the ...
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MP4 format - metadata - adding markers for events occuring within the video

I am recording IP camera footage to mp4 files. The cameras also produce events when motion is detected by them. My server receives these events. I would like to insert metadata markers in the finished ...
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ffmpeg does not add metadata

I am converting a bunch of video recorded with iPad (mov format) into mp4 with ffmpeg (version: ffmpeg version 4.2.1-0york0~18.04.1) under Linux Ubuntu 18.04 LTS. This is the code template I am using ...
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Manage video metadata across Final Cut Libraries?

We have a massive 15TiB FCPX Library that takes 20 minutes to open and can only be worked on by one person. How can we edit the metadata, such as descriptions of what's in the clips, and have it sync ...
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GoPro creation metadata on Google Photos different for photos and videos (timezone offset?)

If I take a video and a photo at the same time (both also have GPS tags in metadata, BTW) and upload them on Google Photos, the video will be wrongly sorted in the album because its creation time is ...
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289 views

Converting m2ts to mp4 with ffmpeg I get empty date fields

I am trying to turn an m2ts to an mp4 and add geotagging metadata to it in the process. I am using the following command ffmpeg -i input.m2ts -movflags use_metadata_tags -map_metadata 0 -metadata ...
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Davinci Resolve 17: burn in metadata of still images using image sequence

I am producing timelapses from 12 megapixel photos taken with a GoPro, each timelapse with up to 50,000 images. I rename all JPGs in sequence, e.g. [00001-49999].jpg and place them in a single folder. ...
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get metadata for video start time with ffmpeg

I need to get the start time of some videoclips (very precise, ideally precise at 0.1 sec). I have been told that I may be able to do so using ffmpeg. I managed to install it but am not sure how to ...
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How to rename recovered video files based on date and duration?

Realizing that I had not copied trip videos before I had reformatted and reused the memory card made me first bang my head against the desk, then trying to recover what's still left on the card. I ...
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Why "mat2" show over 90 lines of metadata for video file

I bought a video and see a lot of meta data. What do these metadata mean (overview summary)? Is there something like watermarking to track who the owner is? mat2 -s video.mp4 [+] Metadata for video....
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How can I remove ENCODE İNFORMATİON from mediainfo for H265 HEVC .mkv?

I want to know how I can remove encode settings from the mediainfo with mkvpropedit or ffmpeg? İn this post: Removing MP4 encoding information I found this command: ffmpeg -i INPUT -c copy -bitexact -...
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Permanent metadata for videos

Is there any existing container (video format) in which the metadata is immutable? I am new to this topic and my use case is that once a video is recorded, I want to preserve the metadata (for ex ...
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Color profiles in videos

Does the AV-Kit of macOS use the color profiles that may be in the metadata of video files of some formats such as MP4? I am the manual author for GraphicConverter from lemkesoft and need to explain ...
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2 answers
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Phone Video + 3D tracking spatial data for compositing?

With all of the AR capabilities of actual phones, I wonder if there is any app to record video with all the spatial data of the camera which lets you export the virtual 3D camera directly from the ...
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476 views

ffmpeg dynamic filter values from piped input

I need to run an audio filter on a piped input using its own lufs value as a variable, without writing to disk. I previously bounced the piped input to processedaudio.wav and the command works as: ...
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2k views

Injecting/embedding/adding/writing metadata to a .mp4 file so it's recognised as 360

I'm working on a library that injects/embeds/writes metadata into a .mp4 file to allow the video to be displayed correctly as a 360 video. The input file is a standard .mp4 file in the equirectangular ...
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Capture original timecode with ffmpeg from decklink

I am trying to capture tape content via a BlackMagic Decklink Quad 2, using ffmpeg. I believe the timecode is passed on through the Decklink because when capturing manually with MediaExpres the ...
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281 views

How can I export metadata from Premiere Pro

After I log my metadata (including the description and bin allocation) in Premiere Pro, I would like to export this to a table format (Excel or CSV). Is there a possibility to do this directly or via ...
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2 votes
2 answers
7k views

Removing Metadata Title in mp4 files

I was able to remove metadata titles in mkv files through mkvtoolnix with this code @echo off for /r %%g in (*.mkv) do ("D:\Programs\MKVToolsNix\mkvpropedit" "%%~g" --tags all:"" --delete title ) I ...
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Saving metadata per frame. What format to use?

I am building some software that does analysis of video. Each frame has metadata associated with it. We save the video so we can play it back later. We would like to be able to play it back with that ...
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774 views

How to make ffmpeg to generate NUMBER_OF_BYTES tag for every stream in file output?

Can ffmpeg count size of stream in bytes? I want to write NUMBER_OF_BYTES tag for every stream in file output on the fly. Like MKVToolNix does. Input #0, matroska,webm, from 'm:\S01E18.mkv': ...
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Do I really need to keep CPI file from AVCHD container?

CPI files accompany MTS files in AVCHD containers created by camcorders. Various posts on video forums suggest that CPI files should be archived together with MTS files, as they contain metadata ...
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FFMpeg set language as Unknown or unspecified in a QuickTime MOV

I have to transcode with FFMpeg some video with multiple audio where various audio track are not language related, just music and so on. I would like to assing as language something like Unspecified, ...
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2 votes
1 answer
51 views

Software for marking AND describing places in video

When editing sport videos one of the most tedious and time consuming parts is actually watching the footage and describing where, what and what is quality of the part of the video. For now I haven't ...
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35 votes
6 answers
41k views

How to prevent ffmpeg from dropping metadata?

When I am simply copying a.MOV (from my iPhone) to c.MOV, ffmpeg drops a lot of metadata, (including the time and location of the video). I tried -metadata, but ffmpeg still drops the information (...
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2 votes
2 answers
802 views

Mi Sphere 360, where is stored the gyro data?

I bought a Xiaomi Mijia MI SPHERE 360 Camera, it has an embedded gyroscope. The iOS app allows exporting stabilized movies combining the video and gyro data. The camera records .mp4 files of the ...
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Stripping metadata sometimes doubles video, the second half of (doubled) video is without sound

I use this command for stripping metadata: ffmpeg -i input.mp4 -map_metadata -1 -c copy output.mp4 Sometimes it works fine but occasionally the result is as +----------------+----------------+ | ...
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3 votes
2 answers
8k views

How do I find out about the shutter speed of frames in a video?

I shot a video at 24FPS, and I want to find out what the shutter speed of each frame was. Quicktime Player and VLC's Info panels don't give me this information. Neither does exiftool. Here's exiftool'...
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1k views

H264 Remove Encoding Settings - Error FFMPEG

" Removing MP4 encoding information " I have tried the formula of interpretation but I have compared it with such an error. " Unknown bitstream filter h264_changesps " What am I supposed to do?
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1 answer
349 views

How to extract and modify data rate and time scale from OpenDML (AVI) file

I'm working on a Python script to bulk transcode video files. These files will have different framerates, and one of the goals is to get them all to the same framerate, by making some intelligent ...
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2 votes
0 answers
329 views

Importing marker data into premiere

Premiere has an option to export markers in .csv format but I cannot find an option to import .csv marker data. How do you do this?
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1 answer
1k views

Error decoding timecode using ffprobe

I'm using ffprobe to get timecode from an mxf which has DF timecode but with a non DF frame rate. I'm getting the error Drop frame is only allowed with 30000/1001 or 60000/1001 FPS. I'm running ...
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2 votes
1 answer
3k views

How to cutting a video and keep all format and metadata

I want to cut long videos into several smaller parts without changing any format and metadata from the original video. I used these commands ffmpeg -i input -ss 00:00:05 -t 100 -c:a copy -c:v copy ...
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3 votes
1 answer
2k views

Video metadata: What is "Video delay" used for?

Recently, I'm forced to fiddle with a nasty little problem with videos that have some special metadata attributes, namely "delay" or "delay_relative_to_video". There's a software videoconferencing ...
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2 votes
2 answers
3k views

Why does AAC have two Sampling rates?

I am working on a project that reads the meta data of video files with MediaInfo and processes the results. While testing my code with some sample files I noticed that the audio track of a .mkv file ...
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12 votes
1 answer
15k views

ffmpeg: explicitly tag h.264 as bt.601, rather than leaving unspecified?

I want to tag video as explicitly bt.601, rather than "unspecified". I know players typically choose bt.601 as the default for videos less than 1280 pixels wide, but I want to make it explicit that ...
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