51
votes
Accepted
How to prevent FFmpeg from dropping metadata?
Other answers here only work with the "known" meta keys, but for custom/arbitrary meta keys, -map_metadata 0 is not sufficient to keep them all.
In my transcoder project, a lot of camera ...
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23
votes
How to prevent FFmpeg from dropping metadata?
The -metadata option is for manipulating the metadata. If you just want to copy the metadata from an input file to an output file, you should use the -map_metadata option:
ffmpeg -i a.MOV -...
- 350
15
votes
Accepted
ffmpeg: explicitly tag h.264 as bt.601, rather than leaving unspecified?
PAL and NTSC have different color primaries, so
NTSC = SMPTE 170M = BT 601 525
PAL = BT 470 BG = BT 601 625
See the rows for value 5 & 6 on the table on page 387 of the active H.264 standard.
...
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7
votes
Accepted
Why does AAC have two Sampling rates?
tracks show two different sampling rates. (...) Can anyone explain what this means? I always thought one audio track can only have one sampling rate. Is this just a different way of describing one ...
- 268
7
votes
How to prevent FFmpeg from dropping metadata?
FFmpeg, by default, makes all metadata from the first input file available, to the output file muxer, for writing. -map_metadata allows to override that, by either pointing to a different input, or by ...
- 32.6k
6
votes
Removing Metadata Title in mp4 files
You can try FFMpeg. There are examples showing how to strip all metadata and removing just a single item isn't much different.
Try
ffmpeg -i in.mp4 -metadata title= -c:v copy -c:a copy out.mp4
This ...
- 181
6
votes
How to prevent FFmpeg from dropping metadata?
I haven't found a way to have ffmpeg preserve the data. But I've found that for my needs I wanted the exif metadata and the exiftool was a convenient solution.
You can copy metadata between video ...
- 161
3
votes
Accepted
Video metadata: What is "Video delay" used for?
Streaming formats maintain timestamps for each frame, whether audio or video, which govern when the player ought to present them. Those non-zero big start times usually occur when a snippet is cut out ...
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2
votes
Mi Sphere 360, where is stored the gyro data?
The data are stored within the file disregarding of the .mp4 file standard.
the chunk containing those per frame data starts with: #¿Ttlyd or 23C05474 6C7964in hex
Each frame has 36 bytes of data, ...
2
votes
Accepted
How do I find out about the shutter speed of frames in a video?
If the data was recorded by the camera as EXIF MetaData, Adobe Bridge would reveal the camera settings under the Metadata Panel. You may have to customize within Bridge WHICH metadata you want to look ...
- 2,477
2
votes
Accepted
Why "mat2" show over 90 lines of metadata for video file
I see no need to worry about those meta data or why you should remove them.
Pantry and Ingredients tags refer to asset tracking. In fact most of this data are production related and not relevant in ...
- 1,401
2
votes
Accepted
How can I get timecode start times and chapter names as plain text from a video which has chapter markers?
LosslessCut (GUI for ffmpeg and ffprobe, multi-platform, free)
Open video file with video markers.
A dialog opens:
This file has embedded chapters. Do you want to import the chapters as cut-segments?...
- 151
2
votes
Accepted
Why does ffmpeg flip upside-down the video when concatenating with -f concat?
The concat demuxer amalgamates all its inputs and presents them as a single input. It takes the properties of the first input as representing the properties of the amalgam. Since the 1st input has a ...
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1
vote
How to copy the file name to the video metadata title?
For MP4/Mov files (not Mkv), you could use exiftool on the command line. Your command would be along these lines
exiftool "-Title<Basename" /path/to/files/
This command creates backup ...
- 181
1
vote
Accepted
Filtering video and adding metadata in one step failed
Yes, the rotate tag is ignored for encoded video streams.
Should be patched in git master within a couple of days.
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1
vote
GoPro creation metadata on Google Photos different for photos and videos (timezone offset?)
Assuming that the timestamp shows the exact same value for both the images and video, then that is the source of the problem. Video timestamps in MP4/Mov files is supposed to be set to UTC. Image ...
- 181
1
vote
get metadata for video start time with ffmpeg
You can use the companion ffprobe tool, which really is meant for machine-parseable text.
ffprobe -v 0 -show_entries format=start_time -of compact=p=0:nk=1 "input"
This will print a value ...
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1
vote
How can I remove ENCODE İNFORMATİON from mediainfo for H265 HEVC .mkv?
Use -x265-params log-level=0
Reference: https://x265.readthedocs.io/en/3.1/cli.html#cmdoption-log-level
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1
vote
How can I remove ENCODE İNFORMATİON from mediainfo for H265 HEVC .mkv?
-x265-params no-info=1
!ffmpeg -y -i http://mirrors.standaloneinstaller.com/video-sample/Panasonic_HDC_TM_700_P_50i.mkv -c:v libx265 -x265-params no-info=1 output.mp4
would generate MediaInfo as
...
- 754
1
vote
Permanent metadata for videos
Containers don't support encryption of metadata, and without encryption everyone may change what he wants (even damaging by his action the whole multimedia file).
There is a possibility to make a ...
- 1,494
1
vote
Removing Metadata Title in mp4 files
In Windows, you can right click on an MP4 file, ensure it's not set as read only (uncheck Read Only->apply if it's set), then click the details tab. At the bottom of the details tab there is a ...
- 111
1
vote
Do I really need to keep CPI file from AVCHD container?
None of the editing tools I know of uses any files other than MTS/M2TS. Supposedly, these CPI files can be used by a Blu-ray player when it plays the content of a card - which is why the structure of ...
- 494
1
vote
Software for marking AND describing places in video
I don't know of any sports video shot logging tools designed for personal use. Most are part of MAM systems. This site compares logging tools for cinematic production, but you can extrapolate from ...
- 2,405
1
vote
How to prevent FFmpeg from dropping metadata?
Looking at the ffmpeg source
Which metadata is written is hard-coded. There isn't a normal way to write all metadata --- for mov, mp4, etc. Whereas I can see that a mkv file gets all its metadata.
I ...
- 11
1
vote
How to prevent FFmpeg from dropping metadata?
From the comment in the answer https://superuser.com/questions/523286/how-to-make-handbrake-preserve-capture-time-creation-time/523696#comment2528176_523696
A full command line adding the option to ...
- 111
1
vote
Accepted
How to cutting a video and keep all format and metadata
FFmpeg only allows you to alter/override the major brand, not the minor.
Command is
ffmpeg -i input -ss 00:00:05 -t 100 -brand mp42 -c:v copy -c:a copy output
MP4box will allow you to override ...
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1
vote
Mi Sphere 360, where is stored the gyro data?
There is a madv box in the udta atom that is not normally seen in MP4s
type:'madv' parent:'udta' sz: 3145728 115 3145835
It has sufficient size for it to be a candidate.
This is a dump of the first ...
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1
vote
Why does AAC have two Sampling rates?
I suspect that your MediaInfo parser is mis-reporting. Sampling rates are usually described both in terms of frequency and bit depth. It is quite common to have 48kHz at 24 bits. I suspect that ...
- 4,730
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