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Questions tagged [metadata]

The tag has no usage guidance.

0
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1answer
12 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 ...
-1
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0answers
11 views

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

I've converted a video file with ffmpeg to mkv format. ffprobe output for this file: Input #0, matroska,webm, from 'n:\S01E18.mkv': Metadata: COMPATIBLE_BRANDS: isomiso2avc1mp41 ...
-1
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0answers
17 views

Metadata problem with a .mpg, but the film plays fine in vlc. Any way to repair?

I have a video that was on a damaged USB stick. What I recovered runs fine in VLC. The slider indicates the proper position in the film, but there is some metadata damage. The timer on the right ...
0
votes
0answers
24 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, ...
2
votes
1answer
28 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 ...
0
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0answers
9 views

Linking files without entire path (Adobe CC)

The way files are linked in any adobe application is the use the entire file path ex: C:Users/me/project/file1.mov Lets say the project is also in that same directory so we have -C: -Users -Me ...
1
vote
1answer
995 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 (...
2
votes
2answers
311 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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0answers
16 views

Metadata overview and basics

Video files can contain metadata, but it seems much more chaotic than in the photography world (XMP / IPTC / EXIF). I have large amounts of GoPro, Smartphone and SLR footage that I would like to ...
0
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0answers
18 views

What is the to do list regarding metadata of streamed videos

I am working on a web app where I stream HTML5 video. These videos are stored on Amazon S3, encoded with a mp4 1080p profile similar to what's used on Youtube. I am using the default/native HTML5 ...
0
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0answers
35 views

Stripping metadata sometimes doubles video, the second one 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 +----------------+----------------+ | ...
1
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2answers
2k 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'...
-1
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1answer
844 views

MP4Box Remove/Hide Metadata

How to remove/hide " Writing library , Encoding settings , Encoded date and Tagged date " in mediainfo with GPAC-MP4Box v0.6.1 ?
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0answers
634 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?
0
votes
1answer
107 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 ...
1
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0answers
201 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?
0
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0answers
56 views

Plot time vs. brightness from video section (h264)

I want to plot time vs. brightness of a section (crop) from a video I shot. In that section is a blinking red LED and I want to extract data of when that LED turned on/off from my video, with the ...
0
votes
1answer
570 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 ...
2
votes
1answer
1k 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 ...
4
votes
1answer
1k 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 ...
2
votes
2answers
2k 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 ...
11
votes
1answer
8k 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 ...