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Trigger on markers

Can someone please break down this small bit of code for me, at a highlevel. Particularly the part n=n-1, I haven't worked out why we minus 1 from the marker here. Thanks n = marker.nearestKey(...
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Resultant Video is always longer than input audio, even though I am using -shortest option of ffmpeg

I am using the following command to make a video from a single image; ffmpeg -loop 1 -i MyInputImage.png -i MyInputSound.m4a ^ -c:v libx264 -pix_fmt yuv420p -c:a aac ^ -shortest MyOutputVideo.mp4 ...
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  • 101
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12 views

Common workflow for editing videos taken with iPhone

Among semi-professionals, what is the least convoluted way to get photos and videos taken on my iPhone to a Windows computer? Historically, what I've done in the past is import the files into a ...
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1 vote
1 answer
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Nikon D3300 and MeiKe MK-MP1 microphone results in pulsating sound

DSLR: Nikon D3300 Microphone: MeiKe MK-MP1 When using the microphone connected to the DSLR I only get a pulsating sound like the one in this video I tried to change ...
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  • 111
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Is there a way to quickly add a gap between audio clips?

I have multiple files with individual spoken words, each in their own audio files. For example Clip 1 is the word "One" and Clip 2 is the word "Two". If I want there to be a 2 ...
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1 vote
2 answers
253 views

Best hidden camera rig techniques

What are the best techniques that you have seen for hidden camera filming? It would probably be on-body, so needs to minimise motion blur/judder. This isn’t a question about legality or ethics - just ...
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  • 6,317
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Just got a JVC GR-DV3000 and cant record on memory card (the camera is older than me, help)

As the title says i got a JVC GR-DV3000 but unfortunately it keeps saying "Please Wait!" on memory mode, it does this with any type of memory card, including the original JVC one (it only ...
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1 vote
2 answers
30 views

Manual fade-in/fade-out expression in ffmpeg is not smooth

I want to fade-in/fade-out the saturation of a video based on the time (t). For three videos, the saturation should fade in and fade out at different points in time, starting with 0, 6, and 12 seconds....
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1 answer
18 views

Parallel throughput of Intel QuickSync (QSV) for real time streams

I'm using Intel QuickSync to lower CPU loading of real time video transcode with FFmpeg. Specifically, qsv is used to deinterlace and decode the input video. A special HW module is used for the ...
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  • 101
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0 answers
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How can I transcode webcam MP4 footage to ProRes without losing lip-sync?

A client has recorded footage on a webcam and delivered it as MP4 files. I am trying to transcode these files to ProRes 422 LT to work with them in Premiere. However, on doing so, the audio goes out ...
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Should I use SVG or PNG for my animated videos?

I'm currently building animations which will be exported into videos. In some case I have stills in the background that won't change over the whole duration. Question: Are there any differences in ...
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  • 111
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1 answer
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Convert mp4 to webm in a reasonable time

I have found this solution provided by hackerb9: ffmpeg -i input.mp4 -b:v 0 -crf 30 -pass 1 -an -f webm -y /dev/null ffmpeg -i input.mp4 -b:v 0 -crf 30 -pass 2 output.webm It's works, but ...
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1 vote
1 answer
36 views

Manual Lens Distortion - Continuously Stretching Image

I have an image that has lens distortion on it (barrel or pincushion). This image is used as the background image. I want to get another image, scale it down, layer it on top of the first image, and ...
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1 vote
1 answer
14 views

is there a way to get better easing on keyframes in davinci resolve

I'm trying to animate pngs of characters coming into frame when that person is talking but the easing that I can do when I right-click the keyframes is really bad. how can I make the easing more ...
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  • 111
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1 answer
30 views

How to fix a file using ffmpeg so that VLC detects Aspect ratio automatically

I have a video, where the video resolution is 852x480. When I open it up in VLC, "the Video Aspect" ratio defaults to *Default However, all I see is a black screen with a thin line as the ...
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  • 101
3 votes
0 answers
16 views

Optimized Parameters of `FFMPEG` for Screen Recording

Windows has a great codec for screen recording called Windows Media Video Screen. It generates artifacts free videos which are highly compressed (small size). I was wondering, what would be the ...
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1 vote
1 answer
45 views

Best camera for filming rain

I want to film two types of YouTube video: Non moving shot, relatively close up. E.g under a lamp post capturing each failing droplet. Virtual walk. Are there specific cameras that will let me ...
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  • 111
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0 answers
6 views

Is it possible to export video with 4-bit depth?

Is it possible to export video with 4-bit depth? Last few months I was trying to find at least one video format that supports 4-bit color bit depth but I didn't find any one that does that, only 8-bit ...
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1 vote
0 answers
9 views

Will a professional PL s35 anamorphic lens cover a fuji sensor and provide proper squeeze?

I have a fuji x-mount camera which is aps-c. As far as I understand it aps-c is just about the same size as super35, and I can buy a PL mount adapter for my fuji camera. Does this mean if i use ...
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0 votes
1 answer
22 views

How to use FFmpeg to do Ken Burns affects using rectangles?

I have a process of specifying starting and ending 16:9 rectangles on an image. This is easier for the end user to select what they want the resulting affect to be. I would like to use FFmpeg to ...
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  • 101
1 vote
0 answers
6 views

Sony Vegas Transition Effect and Colour Correction

Can you please help me with this issue here? When I apply some transition effect to my videos colour correction gets mixed up and from something good looking I get a video with blue colour over it. ...
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0 votes
1 answer
15 views

Does any record exist of the animation techniques used producing Disney's Bambi?

I know the movie is old, but if there's so much as a production book of the film it would assist me a great deal. I'm attempting to confront all of the areas in animation which I'm inexperienced with, ...
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0 answers
23 views

why does FFMPEG encode videos from last video causing clipping video and noise

I am having issues in a windows Batch file where I when i start a video to stream it will play like 1 sec from last video that I had encoded at the beginning . I originally thought it was because of ...
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15 views

What is this effect called and does anyone know how to create it?

I'm a beginner in adobe after effects and premiere pro. Does anyone know what this effect is called so I can learn how to do it from a tutorial? The effect also if anyone knows smooth text effects ...
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9 views

Turn off viewer completely in davinci resolve to speed up editing

My Desktop is not much powerful one. When editing videos in davinci, if I put some effects on clips, the playback stucks while it's trying to process the effect and all the info. Is there any way to ...
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3 votes
1 answer
46 views

After Effects Trim paths offset corner position based on rectangle width and height

I think it would be easier to share an image to show what I'm trying to accomplish. This will be a mogrt so the actual rectangle size / aspect ratio is determined by variable text size. But, I think ...
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  • 78
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0 answers
9 views

Adding .srt subtitles to a DVD image

We currently have a toolchain that takes an input file (ProRes 4444 .mov) and creates a DVD .iso from it, using ffmpeg, dvdauthor, and mkisofs. It all works fine. We'd like to add subtitles to the ...
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1 vote
0 answers
11 views

Can I fix choppy video shot at wrong shutter speed?

I shot some video at 60fps with the intention of putting it in a 24fps timeline slowed down. (59.97 and 23.976 actually) Usually I shoot at a shutter speed of 1/125 for shots like this. I shot some at ...
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0 answers
10 views

Using the gimbal's app or the native phone app to record the video to maximize the stabilization

When recording a video with a phone attached to a gimbal, is it preferable to use the gimbal's app or the native phone app to record the video, to maximize the stabilization? I use a Google Pixel 6 ...
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0 votes
1 answer
31 views

How can we keep the subtitle track when converting from MKV to MP4 with ffmpeg?

I have an MKV with integrated subtitles as such: I want to keep "English [Full] - [English]" when converting to MP4. Currently I use this command: ffmpeg -i myMovie.mkv -vcodec copy -acodec ...
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11 views

How do I accelerate fisheye to hequirect conversion with cuda?

This is my command ffmpeg -y -i in.mp4 -vf v360=input=sg:ih_fov=118.2:iv_fov=69.5:output=hequirect:w=2924:h=2924 -b:v 102400k -bufsize 5000k -c:a copy out.mp4 I tried ffmpeg -y -hwaccel cuda -...
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0 answers
10 views

4 videos with 4 monitors, need to be played on at the same time

I want to show 4 different videos on 4 old tube televisions (they only have composite video) and I want them to be played on at the same time. (Start at the same time) Unfortunately I have no chance ...
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  • 1
0 votes
1 answer
14 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 ...
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0 answers
13 views

Ffmpeg How to avoid audio sync when merging videos

I want to merge some videos from a list. Some of them have frozen frames, with silence filling. When I merge them the silence disappears, but the frozen frames are kept. Is there any way to add async=...
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0 answers
10 views

Ffmpeg Error while holding frame and audio at s seconds

Problem: t_ext defaults to video_length if t>video_length (i.e. 5 seconds clip can only become 10 seconds long even if i try to hold any frame for 20 seconds) [t],[t_ext] Command I'm using: ffmpeg -...
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3 votes
1 answer
22 views

Fill the inside of a hollow/outline font in AFX

I have a text animation (animated letters) in AFX with an "outline" font (that has no fill). There has to be a way to fill the inside of the font somehow? Are there any workarounds? I know I ...
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  • 131
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0 answers
6 views

How To Add Image Overlay Code On My Existing Command

so I have this code which adds text ffmpeg -i video.mp4 -vf "drawtext=fontfile=C:\Sanal\##WeightLoss\ProximaNova-Bold\ProximaNovaScOsfExtraCondensedBold.otf:text='CHECK DESCRIPTION FOR':fontcolor=...
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  • 13
0 votes
0 answers
7 views

Is it Possible to Specify a Multivariant Playlist with a Single .m3u8 File?

I am interested in serving a multivariant playlist. Usually, the multivariant playlist is built using a single manifest for each variant, and one additional top-level manifest file. For convenience, I'...
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  • 101
0 votes
1 answer
15 views

FFmpeg embed thumbnail Windows

I have seen commands like this online: ffmpeg -i video.mp4 -i image.png -map 1 -map 0 -c copy \ -disposition:0 attached_pic out.mp4 However these command don't work as advertised with Windows ...
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  • 260
0 votes
1 answer
9 views

Importing video with very low frame rate into kdenlive

I'm trying to import a video that has an effective frame rate of about 3.3 fps from a stream that I captured with the ffmpeg command line tool. The video profile seems to be reporting that the frame ...
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0 votes
1 answer
21 views

Is it possible to increase horizontal and vertical padding on ffmpeg burned subtitles - using .srt format?

Using command : ffmpeg -i source_video_path.mp4 -vf "subtitles=srt_source.srt:force_style='OutlineColour=&H80000000,BorderStyle=4,BackColour=&H80000000,Outline=0,Shadow=0,MarginV=25,...
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  • 143
0 votes
2 answers
25 views

How to run multiple FFMPEG commands as a batch file in Windows 10/11?

I have the following code which adds a small overlay text over my video: ffmpeg -i video.mp4 -vf "drawtext=fontfile=path\font.ttf:text='ABC':fontcolor=black:fontsize=45:box=1:boxcolor=white@1:...
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  • 13
0 votes
0 answers
6 views

Connecting CCTV coax-based video surveillance cameras to a Synology IP solution

[I hope this is on-topic here as it appears somewhat related questions have been asked before] I have a 4-camera analog CCTV system using coax cable. I'd like to replace my analog DVR (digital video ...
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  • 101
0 votes
1 answer
17 views

Live rotoscoping software (bonus: with reaction to sensor input)

Here's the setup I would like to achieve / the UX I am thinking of having in the end: Let there be a canopy swing with three seats in front of a green screen. Any seat is equipped with a sensor, ...
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  • 103
0 votes
1 answer
20 views

FFMPEG: How to remove audio from entire directory

I am a novice coder using Terminal on MAC that has installed FFMPEG and attempting to edit an entire directory. My goal is to remove all of the audio from all of the videos and output or overwrite the ...
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0 votes
0 answers
8 views

How can I make a top 10 videos on iMovie? Like does it have a feature on the Storyboards where I can do this?

If it matters I'm trying to do this on iOS would I need resources from other apps to make the video
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  • 1
2 votes
1 answer
30 views

ffmpeg subtitles background issue when multiple lines (using .srt format)

While using ffmpeg to burn .srt subtitles to mp4 files I'm having an issue with multiple text lines - background is overlaying each other. Command I'm using: ffmpeg -i source_video_path.mp4 -vf "...
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  • 143
0 votes
1 answer
24 views

Stack two videos side and side but play one after another. Show thumbnail when not playing

I have two videos, that i want to concatenate side by side but second one should play after the first one. If the video is not playing, thumbnail should be shown Below is the example that i want to ...
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0 votes
1 answer
11 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 ...
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12 views

On screen translation text

Does ffmpeg keep on screen text that is used when a foreign or unknown language is used so that it can be understood what they are saying? I'm not talking about subtitles, but on screen text. I use ...
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