Questions tagged [timecode]

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14
votes
2answers
18k views

Why does all timecode start at 1 hour? (01:00:00:00)

Is there a reason timecode in Final Cut 7 and timecode in Pro Tools starts at the 1 hour mark? eg. 01:00:00:00? As opposed to all zeros? Some old broadcast standard that I don't know about?
10
votes
1answer
3k views

Is it possible in FFMPEG to change scale over time?

Ok, so using the overlay filter, one can change the x/y location of a video over time by using the "t" variable. For example, overlay=x='if(gte(t,2), -w+(t-2)*20, NAN)':y=0 can be used to ...
8
votes
6answers
15k views

Adding a time stamp to a video

Anyone know of a program that will add a visible date and time stamp to a video file? Preferably, I can just put in the start time of the video and it will just keep incrementing the time as the video ...
5
votes
1answer
1k 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 ...
5
votes
1answer
828 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 / ...
4
votes
4answers
12k views

How to burn timestamp onto video?

I want to burn timestamp from the video meta data on to the video. I'm having great difficulty in finding a good tool that does that. Is there a video editing tool out there that allows timestamp ...
4
votes
2answers
509 views

Negative SMPTE timecode drop-frame handling?

How are negative timecodes handled with drop-frame: Is the frame before -00:00:59:29 labelled -00:00:01:02 (symmetric), or Is the frame after -00:01:00:01 labelled -00:00:59:28 (regular)? Thanks.
4
votes
0answers
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 ...
3
votes
4answers
5k 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 ...
3
votes
1answer
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 ...
3
votes
1answer
3k views

Adding a sport watch timer

I'm looking for a way to display a timer to measure things happening during the movie, a swimming event for example. Can I add a timer that will start once the race is started and displaying in MM:...
3
votes
1answer
282 views

Hardware/workflow for HD multicam shooting on a budget

I'm interested in doing some multicam shooting of my band's gigs. (This is a personal, not commercial, motivation, so my constraints include budget and cargo space — i.e., minimal equipment bulk. ...
3
votes
3answers
135 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 (...
3
votes
1answer
2k views

How to recover a video that has no time index?

I have a wmv video file that was recorded using widows media encoder. However, while recording, the computer lost power and the video is was not "completed". The video will play in most player, ...
3
votes
3answers
848 views

Fix timecode in merged vobs

I use mpeg streamclip to fix the timecodes in merged vobs. I would like a command line utility that does this without having to recode if possible.
2
votes
5answers
28k views

Fastest way to add a timestamp to a video

Is there any script or application that would add a timestamp to a video (avi or mov)? Does for example mencoder support this function ? I'm using it to join avi files together. I would be happy for ...
2
votes
1answer
1k 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 ...
2
votes
1answer
356 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 ...
2
votes
2answers
1k 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:...
2
votes
2answers
592 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 ...
2
votes
1answer
1k 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 ...
2
votes
2answers
590 views

Resolving timecode errors when capturing in FCP from MiniDV tape deck

I'm having an issue capturing video on our Final Cut Pro (version 6.0.6) edit system when pulling in video from our MiniDV tape deck (via Firewire, linked via an Ethernet "extender"). We seem to get a ...
2
votes
1answer
29 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 ...
2
votes
1answer
3k 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 -...
2
votes
1answer
59 views

Reading material for technical aspects of timecode and alignment

I'm a sound engineer with extensive live and recorded experience. My electronics and acoustics are pretty strong IMO but I've never had any extensive interaction with video/film production and post ...
1
vote
1answer
707 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 ...
1
vote
1answer
8k views

Why is my Time Ruler in After Effects displaying seconds like this?

I know that Cmd clicking on the time stamp in the left corner alternates between frames and seconds, but why are my seconds displayed like this? every other screen of the app I've seen with other ...
1
vote
1answer
187 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 ...
1
vote
1answer
3k 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 "...
1
vote
1answer
823 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 ...
1
vote
1answer
205 views

Time code audio tracks in NLE?

How do you generate audio time code (LTC) tracks, if your platform doesn't offer them natively? Some editing platforms can generate auxiliary LTC tracks, but many don't. Audible time code may not be ...
1
vote
2answers
459 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 ...
1
vote
1answer
434 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 ...
1
vote
2answers
704 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 ...
1
vote
4answers
124 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 ...
1
vote
1answer
744 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?
1
vote
1answer
4k views

How to keyframe a crop in Premiere Pro CC

I am working on a school project, and it starts off with a 5 second count up that takes up the full screen. I am using the prebuilt insert timecode effect built into Premiere. What I have done is ...
1
vote
1answer
178 views

Record VGA/DVI with timecode

I'd like to record presentations and lectures and then edit them after the fact. I'll use one or more camera feeds and a timecode source (either a camcorder or external source). To record the screen, ...
1
vote
1answer
39 views

Checking duration of a marker-created subclip in Final Cut?

I just went through a long video clip in Final Cut 7, adding a marker as the speaker went into the next bullet point of his talk. I'm supposed to convert the clip into video podcasts less than 10 ...
1
vote
1answer
852 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 ...
1
vote
0answers
504 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 ...
1
vote
0answers
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?
1
vote
0answers
35 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 ...
1
vote
1answer
2k views

Setting timecode in Premiere Pro by using file creation date of clips

I have filmed a small rock concert with 4 cameras. One of the cameras was filming short sequences (about 3 mins Clips), then paused for a few minutes and than resumed. Now it is quite a lot of work ...
1
vote
0answers
193 views

Decoding and Using VITC?

Can any one give me more explanation on VITC? I need to identify the VITC code presented in the VBI signal. How does it's format work? how does one extract it? How are VITC embedded in a video signal? ...
0
votes
1answer
815 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 ...
0
votes
2answers
201 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 ...
0
votes
1answer
507 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 ...
0
votes
0answers
30 views

ffmpeg -c copy vs -copyts vs -copytb etc & similar options? What's the overlap, differences, significances, pros cons, how, why & when TO/ NOT TO use?

ffmpeg -c copy vs -copyts vs -copytb etc & similar options? What's the overlap, differences, significances, pros cons, how, why & when TO or NOT TO use? ---------------------------- I am new ...
0
votes
0answers
38 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 ...