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"-map_metadata -1" not working on my compiled ffmpeg?

The problem is: When I use my compiled version of ffmpeg, it does NOT remove any metadata. I've compiled/built ffmpeg using the (general) guide on https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu ...
BongoR's user avatar
  • 1
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0 answers
55 views

Add transparent image over webm video that has transparency

We are doing some automation regarding video creation. Idea is that we have one video but we wanna create 1000 videos from that one, each one having a unique number visible on it. Like a water mark. ...
Mike's user avatar
  • 1
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0 answers
48 views

ffmpeg multiple png fade in/out, audio and overlay with filter_complex_script

I have a set of transparent png images, each image having a coresponding wav audio file (the audio files are of different lengths): 1.png, 1.wav, 2.png, 2.wav, etc... There is also a 10 seconds ...
Robert Wallner's user avatar
1 vote
0 answers
9 views

Restoring High Frame Rate Video After Forced Slow Motion Conversion

I'm dealing with a tricky situation involving high frame rate video recording and need some guidance. For an experiment, I needed to record a video at a high frame rate. The only way to achieve this ...
Miles Jarra Gloekler's user avatar
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0 answers
76 views

How can one upload a video of over 12 hours on YouTube?

https://support.google.com/youtube/answer/71673 states: The maximum file size you can upload is 256 GB or 12 hours, whichever is less. We've changed the limits on uploads in the past, so you may see ...
Franck Dernoncourt's user avatar
0 votes
0 answers
22 views

Frames are ignored when importing video into the video editor (Kdenlive, Shotcut)

I have a video downloaded from the Internet. The file properties indicate that the video has 29.75 fps. When I play this video frame by frame using the "E" key in the VLC player, it looks ...
Cat March's user avatar
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0 answers
112 views

kdenlive no audio in rendered video

operating system: ubuntu 22 kdenlive version: 21.12.3 Audio is available in editing mode and can be played, however, after the project is rendered/exported into a file, video is fine but there is no ...
GeauxEric's user avatar
  • 101
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0 answers
61 views

Using FFmpeg to detect alpha channel in PR4444 file

I wanted to comment on a thread that already exists on this topic in general, but I just signed up to SO and have not earned my contribution credits yet! If anyone has advice on how to better handle ...
user43134's user avatar
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0 answers
12 views

Precise positioning and dimensioning using DaVinci Resolve

I have some clips at different resolutions I want to put on my timeline (configured at 1920 x 1080), precisely at 2 pixels from the left, 2 pixels from the bottom, each clip being supposed to be ...
Oliver's user avatar
  • 283
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1 answer
148 views

Possible to force FFmpeg to omit silence in audio files and produce discontinuous `webm`/`mka`?

Does webm/mka/mkv/mp4 support discontinuous audio streams? I'm wondering, can ffmpeg transcode .wav-audio into opus-encapsulated-into-webm, but filter out silent frames - especially full seconds of ...
Vadim Kantorov's user avatar
0 votes
1 answer
55 views

Combine images and draw text on each image with animation xfade

I am using ffmpeg to merge multiple images and an audio to produce a video. I am using drawtext and xfade with dissolve transition. My ffmpeg command is given below. ffmpeg -loop 1 -t 5 -i ./img/img0....
Imran Khan's user avatar
1 vote
1 answer
221 views

Convert video from webm to mp4 using ffmpeg

I have 10 webm videos, each one has the same size ~15mb. When I run following code: ffmpeg -i video1.webm -f mp4 video1.mp4 9 of them finish in ~10 seconds, but 1 lasts more then 3 minutes. I run ...
datahack's user avatar
  • 111
2 votes
0 answers
50 views

Cutting and rejoining videos causes audio de-synchronization using ffmpeg

I'm trying to cut a video into pieces and rejoin them using ffmpeg on Windows 11 x64. Here's the details of ffmpeg: ffmpeg version 2023-11-22-git-0008e1c5d5-full_build-www.gyan.dev Copyright (c) 2000-...
Donotalo's user avatar
  • 121
0 votes
1 answer
163 views

ffmpeg Config to Produce H.264 Constrained Baseline Profile

It all begins with Plex and appears to end at ffmpeg as the easiest possible solution. I love ffmpeg! I use Plex running on Linux to stream over home network to a Roku. I've used this for years ...
Dave Gutz's user avatar
0 votes
0 answers
67 views

The problem with converting ts files to mp4

So I download ts files from h264.m3u8. The files look like this "https://.net/data/3/a/e/6d162b532610fdae/h264_00000005.ts ". I merge them into one common ts file. And I'm trying to get an ...
Ryan 's user avatar
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0 answers
15 views

Why does my DSLR have a 1 minute recording limit?

I have a Nikon D7500, which I've been using to record some video. I know that most DSLRs have a 30 minute recording limit, and mine started off that way as well. The more I filmed, the more my ...
Evelyn's user avatar
  • 1
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0 answers
5 views

How to align text boxes while keeping layout

I'm pretty new to Premiere Pro, and can't get my text (separate boxes, same layer) to align properly. I made a Photoshop mockup. Say you start with this. Here is what is happening Here is what I ...
J. Litke's user avatar
  • 101
0 votes
0 answers
8 views

My OBS Studio Mac OS is stuck in 9:16 aspect ratio

I'm running OBS [[[ 30.0.0 (64 bit) ]]]on Mac OS [[[ 14.2 Beta (23C5055b) ]]] My only options are vertical video. This just happened and I think it's since the beta update.
user43086's user avatar
0 votes
0 answers
15 views

efficient way to clip video + audio with out exporting on veed

I am using veed.io to edit some videos, I am syncing video + audio, as the first step, then I have to clip mistake parts and delete them... I have discovered that is faster to sync them, export that ...
manuelBetancurt's user avatar
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0 answers
29 views

Errors adding multiple Subtitles with FFMPEG

I am trying to soft-encode 3 subtitle files into my film. I extracted the subtitles from the DVD using ByteCopy I am using this command to add the files: ffmpeg -i BloodDiamond.mp4 -i ...
Our Man in Bananas's user avatar
0 votes
0 answers
31 views

How to update this script to generate HLS video with different resolution streams?

I have the following FFmpeg script: ffmpeg -i video.mp4 -i video.vtt \ -map 0:v -map 0:a:0 -map 1 \ -s:v:0 1080x1920 -c:v:0 h264 -b:v:0 500K \ -c:a:0 copy -c:a:1 copy -c:a:2 copy -c:s webvtt \ -f ...
Andy's user avatar
  • 1
0 votes
0 answers
25 views

How to stitch two videos side by side using ffmpeg?

I want to create a video that consists of same video encoded at 2 different quality levels, half of each stitched side by side. Basically, like this image, right half of the video is the right half of ...
angel_30's user avatar
  • 353
0 votes
0 answers
33 views

ffmpeg concat demuxer merge two videos, output contain frozen frames per second

SE community Since yesterday I have been experiencing a problem using ffmpeg concat. I was merging two videos and I noticed frozen frames over my video where videos are merged. I don't know what am I ...
Rino's user avatar
  • 11
0 votes
0 answers
15 views

how to make any filter's value that accept integer value be a function of the timestamp in ffmpeg?

For example, i am trying to apply blur effect to video in ffmpeg using gblur filter, i want the blur strength to gradually increase from 0 to 50 in 2 secs starting at 5 secs and fade back from 50 to 0 ...
rosner altamira's user avatar
0 votes
1 answer
89 views

How do I export 180º stereoscopic VR footage as "normal" monoscopic video for consumption by normal video players

The title sums up the quest. I am assuming I can do this with Premiere Pro somehow but if I need to use some other method, I'm fine with that as well. An example of what I imagine I want to do: I ...
pedz's user avatar
  • 123
0 votes
1 answer
19 views

Current hardware and software for converting family tapes to digital. Most of the existing links are out of date/not manufactured. I have a Mac M3

Current hardware and software for converting family tapes to digital please. Many of the existing links appear out of date/not manufactured. I have a Mac M3.
John's user avatar
  • 1
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0 answers
46 views

How to "quickly" cut and separate video into tracks (Davinci Resolve 18)?

I am brand new to Davinci Resolve, video recording, and editing in general. I'm running Davinci Resolve Free 18.6.3 on Windows. (Part of my issue in finding the answer(s) might be in my lack of ...
rfmodulator's user avatar
0 votes
0 answers
94 views

ffmpeg - lossless image rotation

I am trying to add a transparent image (png) (that I would like to rotate - amongst other things...) over another image (jpeg). Here is the result (left = non rotated, right = rotated): As you can ...
antoox's user avatar
  • 113
0 votes
0 answers
26 views

ffmpeg: fade-in not rendered when used in conjunction with fade-out

I have a video file I want to fade in and out over a duration of three seconds each. My code is, run over WSL on WIN 10 pro 22H2: ffmpeg -i video.mp4 -vf "fade=t=in:st=0:d=3,fade=t=out:st=169....
CEr's user avatar
  • 1
0 votes
0 answers
21 views

Help me with corrupt video mp42

Hello I have one corrupted video file created with Chinese Camera DV4K_V23. I created one small sample video from this camera and I uploaded it for someone to help me, to decipher exactly which ...
Dejan's user avatar
  • 1
0 votes
1 answer
27 views

ffmpeg: why 2 video stream?

I'm on ffmpeg 6. Take a video then: ffmpeg -hide_banner -ss 00:01:09 -t 20s -i "video.mkv" -map 0:0 -c:v libx265 -crf 25 -filter_complex "setpts=PTS-STARTPTS" "...
buddhabas's user avatar
0 votes
1 answer
179 views

How do i add xfade transition to a batch of videos using ffmpeg?

I'm currently trying to concatenate multiple videos in a folder using FFmpeg. I've successfully applied a xfade transition between two videos using the following command: However, I'm facing two ...
Qasim Rao's user avatar
2 votes
1 answer
150 views

How do you extract bitmap subtitles to a standard image format using ffmpeg?

I need to extract bitmap-based subtitles to a standard image format like PNG or BMP. Preserving transparency would be a bonus. I don't need to convert to text, and I don't want a subtitle-specific ...
Ethan T's user avatar
  • 143
0 votes
0 answers
16 views

Converting with ffmpeg a bunch of webinars that contains a lot of slides (still images) aside a webcam speaker/lecturer

I screen recorded a lot of webinars that now I have to compress in order to have less space occupied. The content of this webinars are mostly persons talking like in zoom, few pixels of them in webcam ...
user3450548's user avatar
  • 1,670
0 votes
0 answers
41 views

How can I combine a screenshot and two video files with ffmpeg?

I have a folder with video files. Some are .mov, some are .mp4. As a first step I am converting the .mov-files into .mp4 with: while read mov; do mp4=$(echo "$mov"|sed -e 's|\.mov$|.mp4|i'...
lukascbossert's user avatar
0 votes
0 answers
73 views

ffmpeg able to use cuda, Vulkan and opencl at the time?

I am using ffmpeg with a lot of filters. I am currently using one gpu for using cuda filters like overlay_cuda and the encoding with: -hwaccel_output_format cuda -hwaccel_device 3 -hwaccel cuda. I am ...
Michael Ciesielczyk's user avatar
0 votes
0 answers
69 views

How to animate transparent images using Xfade and ffmpeg

I am trying to making a video using 1 background image and 5 transparent images (all the images are in same dimensions 500x500). Where the 5 transparent images animate for 2 seconds (Slideup, WipeDown,...
RSD's user avatar
  • 1
0 votes
0 answers
90 views

'FFMPEG: moov atom not found' on my dash cam videos

I have several dash cam videos. The first 3 of them are opened through the VLC. Other files - no When trying to open them ffmpeg: ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the ...
R. Key's user avatar
  • 1
0 votes
0 answers
12 views

Horizontal Blanking Interval (Idling Time) optimization

I have questions regarding the time slot in-between two frames of video stream, i.e. Horizontal Blanking Interval (let's say HBI in the following), seen as Idling Time sometimes. Considering a CMOS ...
AirconBento's user avatar
1 vote
0 answers
52 views

Most efficiant way to create a video with series of images faded in and out with ffmpeg

I am creating a video with audio that consists of 25 images that fade into each other for the duration of an audio file. There is also some text that will appear on the finished video. What I ...
Michael Ciesielczyk's user avatar
0 votes
1 answer
18 views

dvdauthor spumux aborted: picture had 256 colors

spumux tmp.xml < tmp.mpg > output.mpg INFO: Picture tmp.png had 255 colors INFO: Picture tmp.select.png had 256 colors spumux: subgen.c:313: findmasterpal: Assertion `s->numpal < 16' ...
user1855805's user avatar
0 votes
1 answer
116 views

ffmpeg - Prevent ffmpeg to skip frames

I am trying to move a png image by 10px over a white background during 2s (fps=25), but the transition I got is not smooth. Here is the command I am using: ffmpeg -y -vsync passthrough -f lavfi -i ...
antoox's user avatar
  • 113
0 votes
0 answers
76 views

FFMPEG watermark + hls multi stream

i want to convert mp4 video into hls multi resolution (360 , 720) and add watermark image inside the output segments i did two result but missing the watermark image with the multi scale //one hls ...
Mohamed Taher's user avatar
0 votes
1 answer
34 views

Using Lumetri HSL secondary mask to create alpha transparency

How can I use the selection made using the Lumetri HSL Secondary Set Color tool to define alpha transparency. That is to say: how can I use my Lumetri colour selection to create a transparency mask to ...
JKCapeTown's user avatar
0 votes
0 answers
8 views

What are the most common formats that allow interchange of timelines, including footage

The origins on this question are quite similar to What are the most common project formats for modern NLE software? almost ten years ago. If you would edit in an NLE, and want to transfer all assets (...
Skinkie's user avatar
  • 19
0 votes
0 answers
20 views

Creating a Video from Pano2VR results in corrupted frames

Has anyone been able to use Pano2VR Pro to generate videos of their tours using the Animation Output option? Pano2VR uses ffmpeg to generate video frames. I have attempted to use this feature numerous ...
John Freeman's user avatar
0 votes
1 answer
121 views

ffmpeg from 5.1 or 7.1 audio in separate mono streams to stereo

I have a file with 7.1 audio, where each channel is in a separate mono stream. How can I convert all these mono streams to plain stereo? (The documentation suggests to use the -ac 2 option, but that ...
mivk's user avatar
  • 577
0 votes
0 answers
43 views

Davinci resolve stops generating subtitles in specific part of timeline

I'm having an issue generating automatic subtitles over a specific portion of my video. it worked just fine scanning the middle to end but it only gets off 2 subtitles in the beginning then stops for ...
desperrrr's user avatar
  • 123
0 votes
0 answers
132 views

Concat a video and an audio using ffmpeg, freezing the last video frame, without re-encoding

I'm trying to concat a video (mp4) and an audio (mp4 or aac) - both cut out using -ss and -t from the same mp4 file. I'd like to basically freeze the last frame from the video and then append the ...
Vadim Kantorov's user avatar
1 vote
1 answer
167 views

First input link main timebase (1/15360) do not match the corresponding second input link xfade timebase (1/90000)

ffmpeg community I am new to ffmpeg and i am facing this error for more then 2 days. This ffmpeg command: !ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "xfade=...
Rino's user avatar
  • 11

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