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What exactly do FFmpeg options `-itsoffset` and `-itsscale` do?

If I understand correctly, the answer at Lossless A/V delay with ffmpeg seems to suggest that option -itsoffset leads to additional metadata, called "editlist", being added to the video file....
finefoot's user avatar
  • 141
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0 answers
27 views

Same FFmpeg command produces different Matroska MKV output file checksum

The following exemplary FFmpeg command takes an MP4 file, doesn't do any re-encoding, but simply writes the output to an MKV file: ffmpeg -i input.mp4 -c copy output.mkv If I run the same command ...
finefoot's user avatar
  • 141
0 votes
0 answers
32 views

Retain Embedded Cover Images Between ffmpeg Conversion?

I like to embed a cover image into my video files, but I have noticed that they are lost whenever I convert or remux, is there a way to retain these embedded images like I can with metadata? Are there ...
Mr. Mendelli's user avatar
0 votes
0 answers
21 views

Structure of MPEG-4 "©xyz" box

[This was originally posted at https://stackoverflow.com/questions/77971906/structure-of-mpeg-4-xyz-box, and I was redirected to here. I understand if it is too OT and is closed.]. I am trying to ...
BradHards's user avatar
  • 101
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0 answers
50 views

"-map_metadata -1" not working on my compiled ffmpeg?

The problem is: When I use my compiled version of ffmpeg, it does NOT remove any metadata. I've compiled/built ffmpeg using the (general) guide on https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu ...
BongoR's user avatar
  • 1
0 votes
0 answers
44 views

How do you use FFmpeg to give unique title/track names (%02d) using -metadata when splitting a file?

(I'm using ffmpeg version 6.0-essentials_build-www.gyan.dev) I've successfully split a file (in this example a .mp3) & given the resulting files unique names using "XX_%02d.mp3" in the ...
DaveF's user avatar
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0 answers
233 views

How can I keep all the clips' metadata when exporting a sequence in Adobe Premiere Pro?

I have a sequence composed of two subsequent clips in an Adobe Premiere Pro 2022 project. Each clip is a video taken with a GoPro and contains GPS information. However, when exporting the sequence ...
Franck Dernoncourt's user avatar
1 vote
1 answer
717 views

Why does ffmpeg flip upside-down the video when concatenating with -f concat?

My text file list_of_fragments contains the list of video files to be concatenated. I assumed they have the same streams (shot from the same smartphone, with the same settings) file barbell-home.mp4 ...
John Smith's user avatar
2 votes
1 answer
788 views

ffmpeg - How do I modify Channel Layout labels only on 8 separate mono audio tracks?

I have a QuickTime .mov file which has 1 video track (ProRes 4444 XQ) and 8 mono audio tracks, which combined make up the 5.1 surround mix and a stereo mixdown. Per delivery requirements, I need to ...
Jonathon Irons's user avatar
0 votes
2 answers
946 views

How to copy the file name to the video metadata title?

I have a bunch of video files, They have the correct file name but the title in the metadata is gibberish, I want to copy the file name & set it as the tile in the metadata.
ThunderE75's user avatar
1 vote
1 answer
297 views

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 ...
MarianD's user avatar
  • 1,574
0 votes
1 answer
349 views

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 ...
Michael Macha's user avatar
2 votes
0 answers
266 views

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 ...
Podis's user avatar
  • 121
1 vote
1 answer
547 views

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 ...
porg's user avatar
  • 151
0 votes
1 answer
52 views

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 ...
Ray Foss's user avatar
  • 101
1 vote
1 answer
223 views

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 ...
teaspoon's user avatar
0 votes
0 answers
784 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 ...
D. Joe's user avatar
  • 183
1 vote
0 answers
821 views

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. ...
hennzen's user avatar
  • 111
1 vote
1 answer
2k views

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 ...
FrAiello's user avatar
0 votes
0 answers
99 views

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 ...
U. Windl's user avatar
  • 154
0 votes
1 answer
138 views

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....
Ericka's user avatar
  • 3
0 votes
2 answers
3k views

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 -...
For Fun's user avatar
  • 11
2 votes
2 answers
193 views

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 ...
Nikhil Mishra's user avatar
0 votes
0 answers
33 views

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 ...
Hagen Henke's user avatar
1 vote
3 answers
52 views

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 ...
Neko Maksaev's user avatar
0 votes
0 answers
767 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: ...
BreadEagles's user avatar
0 votes
2 answers
3k 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 ...
TrueCP5's user avatar
  • 101
0 votes
0 answers
1k views

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 ...
ilinca's user avatar
  • 101
1 vote
0 answers
554 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 ...
Saaru Lindestøkke's user avatar
4 votes
2 answers
13k 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 ...
spamman's user avatar
  • 41
0 votes
0 answers
461 views

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 ...
Dominic Bou-Samra's user avatar
0 votes
1 answer
1k 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': ...
kot-da-vinci's user avatar
0 votes
1 answer
4k views

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 ...
texnic's user avatar
  • 101
2 votes
1 answer
2k views

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, ...
user3450548's user avatar
  • 1,720
2 votes
1 answer
82 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 ...
Michał Wróbel's user avatar
58 votes
7 answers
64k 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. It ...
Eric Stdlib's user avatar
2 votes
2 answers
916 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 ...
Flavien Volken's user avatar
0 votes
1 answer
158 views

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 +----------------+----------------+ | ...
MarianD's user avatar
  • 1,574
3 votes
2 answers
10k 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'...
Kartick Vaddadi's user avatar
0 votes
0 answers
2k 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?
user avatar
0 votes
1 answer
554 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 ...
user avatar
2 votes
0 answers
378 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?
Recursive Farts's user avatar
0 votes
1 answer
2k 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 ...
Pablo Montilla's user avatar
2 votes
1 answer
4k 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 ...
MiraClee's user avatar
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 ...
Gergely Lukacsy's user avatar
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 ...
arne.z's user avatar
  • 123
13 votes
1 answer
17k 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 ...
Peter Cordes's user avatar
  • 2,769