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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
64 views

How to delay beginning of audio without re-encoding?

I have a file containing both video and audio stream. I want to delay the audio by 5 seconds relative to the beginning of the video, without having to do any re-encoding. The command I tried was: ...
finefoot's user avatar
  • 141
1 vote
1 answer
44 views

In which order do `-itsscale` and `-itsoffset` apply in my FFmpeg command?

I want to use both -itsscale and -itsoffset in my FFmpeg command, but couldn't find any information in the docs https://ffmpeg.org/ffmpeg.html or elsewhere, if the order, in which they're mentioned in ...
finefoot's user avatar
  • 141
3 votes
1 answer
74 views

Math formula for finding 'HH:MM:SS:MMM' Timecode given a number of frames and FPS?

I have been at this for a few days and while I have made progress I am stuck on the last bit, getting timecode to display as HH:MM:SS:MS rather than HH:MM:SS:FF. To do this I need a formula for the ...
Ralf_Reddings's user avatar
0 votes
0 answers
63 views

variable timestamps for audio samples in MP4

Consider the following ffprobe output for a MP4 file. This is an extraction of first 10 frames in the audio stream and its metadata. The audio stream has a sampling rate of 48000, and is encoded with ...
userDtrm's user avatar
  • 141
0 votes
1 answer
2k views

ffmpeg: How to burn in the timecode from a stream's metadata

I have a timelapse video from a GoPro and want to overlay the time of the recording on the current frame. For instance, a frame taken at 9am might show 09:00. It seems like the drawtext filter is the ...
David Lord's user avatar
1 vote
0 answers
228 views

Change Davinci Resolve Fusion timeline to 0

I have a long clip that I've cut down and now I am making changes in fusion. The timeline starts at the specific frame I cut it from (from my example, frames 984-1119). I Want the timeline to start at ...
XLVII's user avatar
  • 111
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0 answers
556 views

Export MOV timecode track as a text file with FFMPEG

I need to check a set of MOV files for broken timecode so I've been attempting to export the entire timecode track of an MOV file using FFMPEG. I've attempted this: ffmpeg -i [source] -map 0:d -c copy ...
user1544752's user avatar
1 vote
1 answer
560 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
2 votes
0 answers
1k views

Copy timecode from SEI Picture Timing to MXF Timecode Stream with FFmpeg

I am receiving an HEVC encoded live stream that contains SMPTE 12-1 timecode in the SEI picture timing, as it is recommended in ITU-T Rec-H.265-202108 Annex D.3.3 Picture timing SEI message semantics....
chris-kuhr's user avatar
1 vote
3 answers
7k views

How to export source timecode and clip names as an overlay in Premiere?

I need to supply timecode, source timecode, and source filenames as an overlay for a colour grade. In Premiere, I have set up my Overlay settings as shown: Note the checked box "enable overlays ...
tomh's user avatar
  • 8,127
0 votes
0 answers
247 views

Why do we still have difference between Media Time and SMPTE Time Code?

I'm implementing a web application which works with video sources with SMPTE time codes printed on it. Often the SMPTE and media time differs, my understanding of the reason based on what I have read ...
dfranca's user avatar
  • 101
0 votes
2 answers
668 views

is there a way to manipulate (pad, slice) a computed PTS timestamp within ffmpeg / drawtext?

I've been able to get most of the manipulations I want on various PTS/timestamp things.. except this one. I have a case where we have a running PTS that gets stamped via drawtext. I currently use ...
ljwobker's user avatar
  • 103
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0 answers
376 views

ffmpeg or ffplay time index not matching with VLC

I am trying to trim many smaller videos out of one big video. I have watched the entire big video using VLC and noted the time index where each video stops and starts. Next, I use ffmpeg to trim each ...
Thomas De Reyck's user avatar
1 vote
1 answer
456 views

Blade Tool Stuck on Grid in Final Cut

In final cut pro x on catalina I have an audio clip and video clip on top of each other in the project. I am attempting to cut both at a specific point, corresponding to a transition in the song on ...
currenthandle's user avatar
1 vote
1 answer
2k views

How to change Timeline's output time from "Frames" to "Timecode" (Premiere Pro)

I was editing a video for a friend when I accidentally changed my Timeline's timestamps from "Timecode" to Frames" It has been really frustrating to figure out what second of footage I am on when ...
NaturalistUbuntu's user avatar
2 votes
1 answer
79 views

Using both SMPTE and IRIG-B time codes

Is there a way to insert both SMPTE and IRIG-B time codes to a video file? I'm asking because I use video for experimental test purposes and having both allows me to track non-video signal along ...
Lilibete's user avatar
  • 121
2 votes
1 answer
3k views

ffmpeg: Preserve timecode when converting mov to mp4

This seems simple enough. I want to do a basic conversion of a .mov file to a .mp4 file using ffmpeg. The hitch seems to be that I also need to preserve the timecode. I've looked at many posts from ...
DiB's user avatar
  • 141
2 votes
1 answer
803 views

Editing/Changing Cluster Timecode Element in mkv files (Amazon Kinesis Video)

I've tried researching this very thoroughly, but have not come across a similar issue. To sum up my problem first, I'm sending 3 second .mkv clips into Amazon Kinesis Video. Then I pull back random ...
Nick Richardson's user avatar
0 votes
1 answer
649 views

Change the timecode with ffmpeg in the middle of the track?

I know you can change the timecode of a file with FFmpeg with the option –timecode. This modifies the whole timecode of the file starting from the -timecode added. Can you change the timecode with ...
antonio 's user avatar
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
0 votes
0 answers
518 views

Extract timecode per frame

I have 2 video clips and their start time differs in a few seconds, as in the first camera started recording at 13:20:35, and the second camera started the recording at 13:21:00. These cameras have a ...
user2333839's user avatar
1 vote
1 answer
3k views

Reading aux timecode with Premiere Pro

I have a video clip with an audio track that has a recording of SMPTE linear timecode. I would like to apply a real timecode to the video, derived from this audio track so that I can more easily sync ...
Brad's user avatar
  • 251
0 votes
1 answer
288 views

Comparing FFprobe to Wave Agent Beta

Wav Agent outputs the following when I drag the same file in, so the data has to be in the file somewhere, and I just don't know how to look for it: WavAgent: StartTC: 13:09:21:18 Now, FFmpeg with ...
Andrei Maraklov's user avatar
0 votes
0 answers
45 views

Adobe premiere Pro: timecode not synchronize

I trying to add a timecode to my video but the timer is not synchronise with the video time Settings: Any idea ?
mpgn's user avatar
  • 101
1 vote
1 answer
1k views

How does ffmpeg record -timecode in different file formats?

As a followup to Add timecode information to file ffmpeg documents the -timecode parameter: -timecode hh:mm:ssSEPff Specify Timecode for writing. SEP is ’:’ for non drop timecode and ’;’ (or ’.’) for ...
iter's user avatar
  • 281
1 vote
1 answer
616 views

Create a MXF media with a video and audio clip at specific timing compatible with Pro Tools

I have several media: one video file several audio files I would like to create a new MXF media with the video file and mixing the audio files at specific timestamp and tracks: Starting time of the ...
Martin Delille's user avatar
1 vote
1 answer
4k views

ffmpeg timecode and -r

Following up on this question: ffmpeg drawtext timecode source framerate I want to change the frame rate of a file, scale it down and burn the timecode in one operation. ffmpeg -i in.mpg -r 24 -vf "...
iter's user avatar
  • 281
2 votes
0 answers
901 views

Is there a container format in ffmpeg that supports non-monotonous timestamps?

I have recorded over-the-air digital TV broadcasts from my own antenna. Due to reception blips, the MPEG-TS file can have corrupted packets, and thus corrupted timestamps, in the middle of a ...
acker9's user avatar
  • 131
0 votes
1 answer
592 views

SDI loop through with LTC embedder

I was wondering if there’s a converter out there that would take a HD-SDI in, as well as a LTC in, and an SDI out. We currently have video feeds with no timecode embedded and was trying to loop ...
markb's user avatar
  • 137
1 vote
1 answer
462 views

How do I apply a timecode and then I speed up x4 a video with ffmpeg without losing quality?

I'm trying to create a .bat file for ffmpeg that: Applies a timecode overlay (e.g. 00:17:23:02) Speeds up the video x4 (but AFTER the timecode is applied) Doesn't "touch" the quality of the original ...
m30l's user avatar
  • 13
1 vote
2 answers
1k views

How to copy timecode value from a video to clipboard on a mac

Is there any app that can copy timecode values to clipboard? I'm playing a video. I want to stop the video, press a keyboard shortcut, then go to a google doc and paste the timecode value (not a ...
tomh's user avatar
  • 8,127
2 votes
1 answer
5k views

Problem setting first frame timecode using ffmpeg - timecode always different from requested for 59.94fps video

Edit: Found to be a small bug in FFmpeg. It should hopefully soon be patched. I'm having issues with setting the timecode for some .MXF files that I have. If I run the command: ffmpeg -i test.MXF -...
Murray Evans's user avatar
6 votes
1 answer
2k views

How are frames in 59.94 drop-frame timecode dropped?

The pattern for dropping frames in 29.97 drop-frame SMPTE timecode is well documented (2 frames at every minute except when minute is a multiple of 10). I was wondering how it works with 59.94 fps ...
Sebastian's user avatar
  • 163
1 vote
1 answer
1k views

How to use (or should I use) time code/user bit feature on Sony FDR-X3000 action cam

In the Sony FDR-X3000 action cam user manual, it says: About time code: Time code is a useful function for advanced image editing, which records hours/minutes/seconds/frames on the image data. About ...
birdus's user avatar
  • 113
1 vote
4 answers
139 views

Audio/video sync puzzle

I filmed an event with two cameras and I need to sync the second camera footage with the audio of the first. This was a live event and I couldn't record sync aids like a clapper. I name my video files ...
Joshua Frank's user avatar
0 votes
1 answer
2k views

ffmpeg timecode added does not match the ones I can read in Premiere

I used this command to burn the timecode inside my video. While everything looked fine, when I open my video inside Premiere it seems that my timecode doesn't match. My fear is that the timecode ...
user3450548's user avatar
  • 1,720
0 votes
1 answer
808 views

Premiere .prproj file ticks drift by 1/1000 compared to timecodes

I am a programmer and am processing Adobe Premiere .prproj files. I read the contained XML data to figure out where a <Media> element's video file starts. I have a video that's been recorded ...
Thomas Tempelmann'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
977 views

pause video with overlay ffmpeg

I'd like to overlay a png onto a video at a certain timestamp and have the video pause (loop) on that frame for X seconds with the overlay. What would be the best method to accomplish this?
tonyl7126's user avatar
  • 181
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
1 vote
0 answers
2k views

How can I remove the timer of the preview screen?

How can I remove timer from the lower center of the preview screen (circled in red) of adobe after effects?
Ankit Arora's user avatar
5 votes
4 answers
9k views

ffmpeg: preserve timecode when converting mp4 to mov

I have .mp4 files created by a Sony A7s camera. They're using the XAVC S codec. I'm converting them to .mov using the command below. The original files have a timecode but that is not present in the ...
user3185563's user avatar
2 votes
2 answers
2k views

Reset timecode in source footage to 00:00:00

I have an MOV footage clip supplied by a freelancer that starts timecode at 11:48:09. It's a standalone clip that I don't need to retain that timecode for. Would be very useful to reset it to 00:00:...
alexh's user avatar
  • 703
2 votes
2 answers
764 views

How is 29.97 timecode generated over a full day without frame errors?

A quick primer:American television was originally broadcast at 30 frames per second. In order to accommodate color information without losing backward-compatibility with B&W televisions, the ...
Erik D.'s user avatar
  • 23
3 votes
3 answers
148 views

Is 0.0036% time inaccuracy on a consumer-grade camcorder expected?

I did an experiment on our church's camcorder (Sony Handycam HDR-CX380) recently to test whether it was the source of a time inaccuracy between our video recordings and PC audio recordings of sermons (...
Matthew Frazier's user avatar
6 votes
1 answer
985 views

Trying to sync audio in mpeg2 video whose video freezes first 8 seconds in playback

So I have a handful of old mpeg2 (.mpg) files with the following profiles as provided by ffmpeg (the timecodes on each are different): Stream #0:0(eng): Video: mpeg4 (Advanced Simple Profile) (mp4v / ...
roy's user avatar
  • 163
2 votes
1 answer
2k views

Auto generate video clips using a CSV of times as markers from a single MPG video

I have an MPG video and a CSV of times. I am searching for a way to automatically generate clips from the video using those times. So at each time position a clip is generated with 10 seconds either ...
Happy Pixel's user avatar
1 vote
0 answers
49 views

Force Final Cut to use embedded timecode in preference to file creation time?

I have a series of clips from a GoPro that have embedded timecodes -- the media start/end fields show up correctly in the Info inspector. However, when the files were copied between filesystems, the ...
Jeremy's user avatar
  • 11
5 votes
1 answer
2k views

Extract the frame (in image format) at exactly every minute (or second) from a video (by ffmpeg)

Motivation: I would like to seek the frame, then take high quality and exact time screenshots (images) from a video. The video is length is 00:48:43.71 and 23.98 fps (we can think it is 24 fps, isn't ...
midnite's user avatar
  • 151