All Questions

1
vote
0answers
10 views

FFmpeg spliting video without re-encode

Using the recent ffmpeg I am trying to split an arbitrary video to 10 equal parts of 1 seconds every given interval. The Audio is not important to me and should not be in the output. I used ffmpeg -...
0
votes
0answers
3 views

FFmpeg - Folder Convert

I am use FFmpeg v4.1 . How can I convert all '.mp3' files in the "ab1" folder to the "cd2" folder with the same file names as '.mp3'? The process I'm going to do is: -acodec libmp3lame -b:a 192k -...
0
votes
0answers
4 views

Decrease Output file size, without loss in quality

Currently I am using: ffmpeg -hwaccel cuvid -i input -c:v hevc_nvenc -qp 1 output I want to know how to compress the file but lossless.
0
votes
0answers
6 views

Sigma 18-35mm, f/1.8 DC HSM ART Image Circle / BMPCC4k with 0.71x

I am currently figuring out which lens I should get. I found the Sigma 18-35mm, f/1.8 DC HSM ART which looks quite interesting as I want to have a nice bokeh and shallow DOF. But it is for APS-C only. ...
0
votes
1answer
14 views

Invalid video duration when frame rate is not 60

I have a python script, that generates a ffmpeg command for creating a slideshow with the "Ken Burns" filter. For example, I have 10 images and want to create an 1-minute video at 30 FPS. It ...
0
votes
0answers
7 views

Can't set ffmpeg request header when using file for input

I'm attempting to set headers (as suggested here) for my ffmpeg concat command like so: ffmpeg \ -f concat \ -safe 0 \ -protocol_whitelist file,http,https,tcp,tls \ -headers $'Content-...
1
vote
0answers
8 views

How to sync drifting audio(s)?

One audio source is the camera, (its sound is more for reference 'cause the distance is approximately 10 meters from the source). The second audio source is a mixing table getting mics. The total ...
0
votes
0answers
15 views

Fail to use .acv photoshop curve with ffmpeg

I have made my own curves in photoshop for color matching but when it comes to use it with ffmpeg curve filter while transcoding video files fails. For example, i have this command to screenshot a ...
0
votes
0answers
9 views

My 50 FPS footage automatically converted to 24FPS by DaVinci Resolve

I have imported my Camera Footage of the Sony Alpha 68 and it is a 50 FPS footage as it shows in the metadata in the below image but when importing into timeline it gets converted to 50 FPS. Earlier ...
0
votes
0answers
6 views

Boost audio of .mkv file on mac?

Referring to the post below: https://apple.stackexchange.com/questions/114309/increase-audio-volume-of-mov-video-in-os-x?newreg=2456df4e2a1e423db0b7ac8e3d8bbbf1 I would like to know an easy way to ...
1
vote
1answer
26 views

FFMPEG : Merging Two Audio Files

I am using following command to merge two audio file, which works fine. ffmpeg -i main.mp3 -filter_complex "amovie=tag.wav:loop=0,asetpts=N/SR/TB[tag]; [0][tag]amix=duration=shortest,volume=2" tag-...
0
votes
0answers
38 views

FFmpeg only and only change H264 profile and level?

I am use FFmpeg v4.1 . I want to change H264 profile and level but I want other settings to stay the same. I just want to change the profile of H264. I'm using this code, but I'm getting the error. -...
0
votes
0answers
14 views

FFmpeg: blackdetect filter - 2 events instead of 1

I run the following FFmpeg command: ffmpeg -i INPUT.mpg -vf "blackdetect=d=2:pix_th=0.00" -f null - It shows the event from the blackdetect filter with information about the black interval: [...
0
votes
0answers
19 views

Add the image on top of the video not a overlay

I have tried this command ffmpeg -i video.mp4 -i image.png -filter_complex "[1:v]scale=320:-1[bottom];[0:v][bottom]vstack" output.mp4 The error is [11] => Input #0, png_pipe, from 'download.png'...
0
votes
1answer
9 views

How to change After Effects frame rate so that it doesn't speed up

I recently imported a 59.94 fps mp4 file into After Effects, and due to myself wanting the edit to be smoother, I changed up the fps to 120, but it changes the video speed to a much higher rate. How ...
0
votes
0answers
26 views

ffmpeg How to reduce file size based in percentage

Using ffmpeg, how can I reduce file size specifying the percentage? Like, reducing 35% of file size. I want apply it on a for loop to reduce many file sizes. Thank you!
2
votes
1answer
21 views

Do old CRT TVs and monitors distort their image, or cut it off?

I vaguely understand that an old CRT monitor/TV's screen is a section of a sphere, and since the section lines of a sphere curved, the edges of the screen are curved as well. My question is, if you ...
0
votes
0answers
7 views

Streaming poll solution

I may not post on the right exchange but i was not able to find an appropriate one. Here is my question: I'm looking for a solution to make live polls on youtube streaming live which use youtube chat ...
0
votes
0answers
24 views

ffmpeg: How to create a preview GIF with a fixed number of intervals

I'm not sure how to put the title right but I will try to explain what I need. Given a random video file with unknown duration, I want to create a preview GIF from a video file that will "break" the ...
0
votes
0answers
12 views

OBS Randomly stops streaming

For a few days now OBS will randomly stop streaming without giving me an error. Still has a green square in the bottom right and it says 0kb/s. Timing may or may not coincide with a windows update ...
1
vote
1answer
24 views

Is there an app that can automatically separate scenes/clips from a video file and export them?

I am looking to parse a collection downloaded YouTube videos that are actually compilations containing clips from several different videos all over the web. I would like for this program to ...
0
votes
0answers
7 views

How would I produce unevenly colored subtitles with aegisub

I would like to put text on screen that would have non-even colour. I.e. if the text were "subtitle", "s" would be in say white and "e" in gray. Is there a way to accomplish this using Aegisub/ASS ...
0
votes
0answers
15 views

Interesting PowerPoint video importing behavior

I'm posting this in video production since I figured you guys would know a lot about video encoding and the weird things that can happen. We shot some video (~1 min) on a scientific camera (on a ...
1
vote
0answers
26 views

Chrome renders WebM Video “darker” than other browsers / media players

Not sure if this is the correct community, but I have a question about video encoding and decoding. I have a video that gets served in MP4 or WebM formats, depending on browser support. I noticed ...
0
votes
0answers
7 views

What is wrong with my Vegas Pro 13?

My sony vegas pro 13(64bit) has no text media plugin in it. When i click "insert text media" in video track there is nothing it just opens the window with plugin chooser. Whenever i open a "Legacy ...
0
votes
0answers
10 views

Video syncing with Premiere Pro Sequence

We have an audio only sequence, with many multiple cuts done by one team. Now, we want the exact same cuts on the video. How can we sync the same. Can Pluraleyes help in this problem?
0
votes
1answer
19 views

Changing the fps of playback in ffplay

If I have a video, say an mkv with h.264 codec @ 25 fps. Can I play it in ffplay with a different fps, say 30fps? I know if the video was in still images, ffplay lets you assign a -framerate 30. But ...
0
votes
0answers
13 views

How to handle liability as freelance filmmaker

Up to now I allways just made hand-shake contracts, but now I want to bring the contract to paper and make it official. One big thing I'm not sure how to handle is liability. Let's say I'm shooting a ...
0
votes
1answer
18 views

How to calculate pricing

I'm making films and videos for the past 3 years and now would like to go into a more professional enviroment. One of the big tasks for this is to figure out pricing. How do you calculate your price ...
0
votes
1answer
16 views

Adding hard and soft subtitles to a video

I have several movies and shows, such as Breaking Bad, into which I want to add both soft (optional) subtitles for English, but hard (always on) subtitles for the non-English languages. Is this ...
0
votes
1answer
12 views

after effects - motion graphics/kinetic text

Attempting to replicate this graphic. How can I replicate and be sure to have the squeezing effect as well as the subtle motion blur I plan for the graphic I'm working on have text that remains ...
3
votes
2answers
87 views
+50

Censoring license plate in a long video

I'm editing a video recorded in a car workshop. The video is about 30 minutes long. In the background there is a car whose license plate has to be hidden. Unfortunately, the camera moves a lot so it'...
0
votes
0answers
12 views

frame timestamps altered after concatenation

Similar to concat files with ffmpeg and preserve exact frame timestamps but this video has no audio stream I have a 30-second video where the first frame has a timestamp of 2 seconds. There is only a ...
0
votes
1answer
22 views

Add overlay video and animated text (textbox and shadow) with FFmpeg

I'm trying to figure out how this works, but I couldn't find the final solution. ffmpeg -i input -i overlayvideo \ -filter_complex \ "[0:v] setpts=PTS-STARTPTS [v01]; \ [1:v] setpts=PTS-STARTPTS [...
0
votes
0answers
16 views

How to compute scene complexity and video motion using ffmpeg

I need to compute the scene complexity and the video motion of a given video, where the scene complexity quantifies the number of elements present at the video scene, and the video motion describes ...
0
votes
0answers
22 views

Fast video player for windows?

Is there a (possibly free) video player that fast forwards at least as much 60x real time? I only found mpc-hc.org which theoretically goes up to 128x but in reality it was maybe 5x max. (I tested it ...
-1
votes
0answers
16 views

Live multiple camera editing and capture for sports coaching

Use case: Personal project to help a gymnastics studio develop a video system to review athlete movement. Summary: Capture feed from multiple cameras (ideally 4, front and back, left and right) Have ...
-1
votes
0answers
24 views

Genlocked two action cameras

I am looking for 2 action cameras to create stitched 180 degree video. The cameras have to be genlocked to get correct frames to stitch videos. I have 350$ budget for it. It's not commercial project. ...
2
votes
0answers
13 views

Sony Vegas pro 15: Can not move Image in Pan/Crop

I am trying to move image using pan/crop tool, but I have no idea how to do that, because there is not any "F frame". Thank you for advice.
-1
votes
0answers
10 views

The audio is out of sync with video in my xiaomi redmi note 5a prime

Sometimes I would record myself and when i watch it later i noticed that when the video is in 2 -3 min part the sound wasnt sync with the video. I changed the quality of the video from hd to sd and ...
0
votes
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 ...
0
votes
1answer
10 views

Retrieve and decode V-Chip data from an aired digital TV stream

I'm trying to retrieve and decode V-chip data from my TV streams (NTSC/ATSC digital streams). Apparently these data are embedded somewhere in the stream itself, but I have no clue how they are ...
-1
votes
0answers
16 views

Open source web based video editing platform

Bonjour, Does anyone knows if there's any available web based platform for video editing I can use on my on web server ? It doesn't have to mandatory be open-source. PS: I found moviemasher but ...
-1
votes
0answers
6 views

Ready-to-use tools for keyframe video segmentation (video keyframe extraction)?

I need to extract keyframes from a video. Keyframes are frames that summarize sequences of a video best. I have only found solutions that don't look solid or promising: https://github.com/tafsiri/...
0
votes
1answer
15 views

ffmpeg.exe ignores yadif filter when using >1 filter on the command line

I'm using Windows and batch converting some SD captures that are 544x576, I want to deinterlace them and scale them to show at the proper aspect ratio. When I use the following command: FOR /F "...
0
votes
1answer
16 views

Video Assets to test transcode quality

I was wondering if anyone knows from where I could get a few (short) video assets in high bitrate to check the quality output of a transcoder. Some context: A few years ago I was working on a VOD ...
1
vote
1answer
20 views

Moving clip with green screen

I'm working on a project that is using an old "film roll" as a base for it: I want to have different clips for each color, and I plan on moving the film to the left, but I want to somehow scale the ...
0
votes
1answer
21 views

Surround sound for cinema feature film (Pricing of Dolby Surround)

We are planning to shoot our first feature film with a budget of around 100'000-2'000'000$. And we'd like to master it in 5.1 Surround sound. Normal procedure would be to do it with Dolby Surround, ...
-1
votes
0answers
10 views

ffmpeg audio sync issue using libopus

ffmpeg -i audio.wav -c:a libopus -b:a 510000 output.ogg I have an f32 .wav audio file over 30 minutes I need to convert to a format that fits in a .ts container. I need it to be highest quality ...
-1
votes
0answers
7 views

Parse PROJ4 meta information from a video file

I have a fisheye video camera that leaves projection information as part of the header info like so: <proj:Projection proj:type="equirectangular" proj:panMin="-180.000000" proj:panRange="360....

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