Questions tagged [video]
Video is the technology of electronically manipulating still images that represent motion.
376
questions with no upvoted or accepted answers
6
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1
answer
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Making a Digital clock with a specific time for Sony Vegas Platinum 12
I'm using Vegas Platinum 12 and I want to create a time code in a video. But here is the catch. I want to start the clock at a specific time and have the count start at that time, i.e 05:21:34 or 21:...
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4
votes
1
answer
282
views
GoPro looping settings
I'm using my GoPro Hero3 White as a dashcam.
Setting it to overwrite files, I encountered 2 strange things:
5min settings give me 1min files, and 20min settings give 5min files.
The counter stops at ...
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3
votes
0
answers
4k
views
How to use ffmpeg to send video stream to another server that gives exactly same quality as manually copying the file to that server?
I tried doing this
ffmpeg -i tcp://192.168.1.41:5000?listen -c copy out.avi
and have another client publish to this server using
ffmpeg -i 1.avi -map 0 -c copy -f mjpeg tcp://192.168.1.41:5000
...
3
votes
0
answers
282
views
What's the use-case of the Video Snapshot function on Canon cameras?
While browsing the video settings on my Canon 77D, I came across a peculiar function:
What is the Video Snapshot function?
The Video Snapshot function enables you to shoot short scenes that last for ...
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3
votes
2
answers
217
views
Video File Navigation
Is there any way to provide navigation in a video file like a DVD or Blu-Ray?
I know that QuickTime supports Chapter Markers, but the codecs you can use with QuickTime result in very large files. As ...
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3
votes
0
answers
1k
views
FFmpeg Windows MP4 - remove specific frames
I have a movie - movie.mp4. I wish to remove/delete specific contiguous frames from movie.mp4 which are located somewhere near the middle.
Specifically, total frames in movie.mp4 = 33,595.
I would ...
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3
votes
1
answer
90
views
Divide video ouput
I will soon be in charge of multiple screens for scene at a concert. Those screens are centralised and a video output will be give to me. I'am looking for a way to divide this video output into two ...
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3
votes
0
answers
102
views
Video and Telemetrics not in sync
I've recorded a video with Raspberry Pis Camera Module.
On top of that I've recorded GPS data including the GPS Timestamp and made my own data file.
Using Dashware I've tried to get the video and ...
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3
votes
1
answer
310
views
Old webcam recorded video not playing
I have this video (length 1-2 min) recorded on Dell webcam 3-4 years ago. It played smoothly at that time. Now when I play it, for first 40 seconds it plays well but after that video goes blank and ...
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3
votes
0
answers
372
views
Is there a way? multiple images to looping video via ffmpeg?
I want to use ffmpeg to create a 15 second looping video from images for posting to instagram.
For instance:
Camera takes 3 pictures
Each image plays for 2 frames (3 images = 6 frames)
After 6 ...
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2
votes
1
answer
982
views
Use ffmpeg to stream rawvideo from a USB camera
I have a image sensor that streams 640x480 in RAW8 format. A USB controller is receiving this data, packing two pixels of 8-bits each and sending to USB as a 16-bits per pixel YUV422 format (this is ...
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2
votes
0
answers
367
views
Trouble combining audio and video streams
I have two streams, one audio and the other video. I'm trying to combine them using this command:
ffmpeg -y -i audio.m3u8 -i video.m3u8 -c copy Video.mp4
I found this syntax here:
https://video....
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2
votes
0
answers
37
views
How do you edit videos to slide on and off the screen?
Hi I’m trying to edit a group of videos so that they continuously slide on and off the screen. I was wondering if there was a faster way to do this instead of individually adjusting the position key ...
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2
votes
0
answers
21
views
AE - Tracking in Comp different when played backwards?
I've come across a rather strange phenomenon in After-Effects.
Here's what I have:
I tracked some shaky footage and applied the tracked motion to a null. Then, a camera follows that null, thus ...
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2
votes
1
answer
353
views
Davinci Resolve - Store Clips Edited in Cut Window in a Media Folder
I am working on a video project in DaVinci Resolve. It a short video documenting a piece of installation art. One of the media files is a handheld camera that takes close up shots of different parts ...
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2
votes
0
answers
30
views
Name of old VHS content blocker device
I am not sure if this is the right network to ask this question but it's the closest I could find.
An acquaintance of mine told me that, when he was a kid, they had some kind of content blocking ...
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2
votes
0
answers
656
views
Is QTGMC still the best deinterlacer?
From reading various video forums, QTGMC seems to have a reputation as being one of the best tools for deinterlacing video (at least from an open-source perspective), with Yadif in second place.
Is ...
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2
votes
2
answers
2k
views
FFmpeg: Align Video & Audio of Desktop Capture
I am using FFmpeg's built-in gdigrab & dshow to record the display & audio of my system. I am encoding to uncompressed H.264/AVC video & uncompressed PCM/WAV audio.
I had been having two ...
- 203
2
votes
0
answers
1k
views
Extract file thumbnail from mp4 file
I'm currently converting a few mp4 file to mkv. In the process they lose their file thumbnails and I wanted to keep them. So I'm searching for a way to extract the custom thumbnails from the mp4 files ...
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2
votes
1
answer
384
views
Fade text background on one end in Sony Vegas Pro 13
In Sony Vegas Pro 13, I've masked the part where I want the text's black background to appear. It looks like this:
Now, I want to fade one part of the background like in below picture, where right ...
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2
votes
0
answers
161
views
Tripod Quick Release Video Pin Dimensions
I have an Industrial camera that I am working with and I want to mount it to a standard tripod that features a quick release with video pin; otherwise known as an anti rotation pin. While I wait for ...
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2
votes
0
answers
1k
views
How can I mux video and audio from separate sources that're at different frame rates?
I'm having trouble muxing the video from one source with the audio from another because the audio drifts over time. As I mentioned in the title, the sources are at different frame rates, the video's ...
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2
votes
0
answers
1k
views
Canon 800D "Movie digital IS" stabilization - cropping video shot?
I am new to DSLR video and wondering, how is actually working "Movie digital IS" stabilization of my Canon 800D. If you shoot video, there are 3 options of IS stabilization - no stabilization, IS ...
Martin J
2
votes
1
answer
249
views
Dealing with dropped frames in background plate when doing keyframe animation in After Effects
I am working on a video which includes some dropped frames ever so often. When a frame dropped, it repeated the previous frame sometimes 2 or 3 times. I am overlaying many objects on this video, and ...
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2
votes
1
answer
1k
views
ffmpeg: joining videos leads to "time skips" during playback
I hope that someone can help me. I have the following two videos:
$ ffprobe 0.ts
ffprobe version 3.2.4 Copyright (c) 2007-2017 the FFmpeg developers
built with gcc 6.3.1 (GCC) 20170109
...
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2
votes
1
answer
19k
views
how to get vdpau hardware acceleration using ffmpeg?
I am developing a multimedia player using ffmpeg. I am trying hard to get hardware acceleration through ffmpeg using vdpau hardware accelerator. I didn't get any success so far. Below I have mentioned ...
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2
votes
0
answers
758
views
Virtual webcam with MJPEG output
I have an very specific situation maybe someone can help with.
The short story/question:
Is there a virtual webcam software that can output as a virtual webcam in the motion JPEG (MJPEG) format? ...
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2
votes
0
answers
56
views
Realtime fulldome video splitting
I need to split fulldome video stream to several projectors for planetarium. I wrote hlsl (and glsl) shader which does exactly what I need and has some configurable parameters. It works in MPC:HC that ...
2
votes
0
answers
119
views
Genlocking 5-6 sj4000
I'm planning on buying 5-6 sj4000 and use them to create 360 images and videos. This is the oem sj400, not sjcam sj4000. Does anyone have an idea how to genlock to trigger them together. I've seen ...
Sheikh Sheese
2
votes
0
answers
107
views
How to make batch ffmpeg with this codes?
How i batch render with ffmpeg with this code on windows? Codes work well.
ffmpeg -y -loop 1 -i background_image.png -i mainmovie.mov -filter_complex "[0:v]setpts=PTS-STARTPTS[V1]; [1:v]setpts=PTS-...
2
votes
0
answers
4k
views
Fast encoding with ffmpeg
I know about presets but faster presets lose the video quality. Are there any hardware requirements I need to consider? Or are there any settings that I need to tweak? And lastly where do I place the -...
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2
votes
0
answers
429
views
ffmpeg to cut intro and replace with new intro
I am using ffmpeg to cut out the intro in my video and replace it with a new intro. I run into a buffer underflow error when I try this. The commands I'm using are:
ffmpeg -i LegalFinancialPlanning....
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2
votes
1
answer
10k
views
Corrupted video (Green/pink) on Premiere Pro CS6 in Win8.1 Pro 64bit but not on Mac OS Yosemite
I have a volume license for Premier Pro CS6 whereby I can run it on Mac OS and Windows.
When I run it on Windows, I get this:
But on MacOS it is fine.
The video is HDV 1440x1080i MPEG4 QuickTime.
...
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2
votes
0
answers
972
views
Dxtory recording randomly crashing game
Whenever I try to record gameplay with Dxtory (using the h.264 codec) my game will crash after a seemingly random amount of time, although it is usually after at least 30 minutes. Dxtory produces no ...
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2
votes
0
answers
388
views
avconv: How to blur scenes?
I want to blur some scenes with avconv
The ffmpeg command -find it here- is:
ffmpeg -i input.avi -vf "boxblur=enable='between(t,22,113)'" -codec:a copy output.avi
doesn't work with avconv
...
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2
votes
0
answers
10k
views
Using GoPro Studio to edit non-GoPro videos
I'm trying to use GoPro Studio to create a video that includes GoPro video as well as HD video from an iPhone. GoPro Studio was not able to deal with the .MOV file from the iPhone (the audio was ...
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2
votes
0
answers
547
views
What is a good wireless solution for video monitoring for BlackMagic Design Cinema Cameras?
We are looking for a video monitoring solution that is portable and used with the BlackMagic Design Camera. I found a link with devices that look great.
http://blog.vincentlaforet.com/mygear/...
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2
votes
0
answers
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Streaming with a Sony NX5
I recently obtained a Sony NX5, now aside from the fact that its pretty much a great camera in every way (afaik); it doesn't have a IEEE 1394 port. I assume this is probably related to the AVCHD ...
user1167
2
votes
2
answers
2k
views
How to find/detect the real video resolution?
Imagine you have recorded/captured the screen at 1080p, but it was displaying a 480p video maximized to fullscreen.
The result file is technically 1080p, but it really is showing a 480p video, that is ...
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2
votes
1
answer
840
views
Play 24fps video smoothly on 50Hz monitor
Most of the content that we download or get from media is 24fps. Which can not play smoothly on 60Hz/50Hz monitor as 24 frame can not directly sync with 50/60Hz monitor.
Now my question is it ...
1
vote
1
answer
22
views
Post Production Video Effect: How is this done?
I found a YouTube video with a post-production editing effect I'd never seen before. Could someone explain how they did this, and what software they used? Below is the link to a short Loom video.
...
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1
vote
0
answers
37
views
How these kind of coding tutorial videos can be made using ANIMATION with your face shown on screen?
I was preparing for an interview and came across this wonderful YouTube channel called Tap Academy. In their videos, the tutor's explanation is amazing, and he uses animations on a whiteboard to teach ...
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1
vote
0
answers
57
views
ffmpeg shows "get_buffer() failed". Is this a bug?
ffmpeg version 2023-06-19-git-1617d1a752-full_build-www.gyan.dev
i7-1255U, Windows 11
The command line is
"ffmpeg.exe" -y -hwaccel qsv -ss 00:00:03.461 -to 00:00:12.009 -i "input....
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1
vote
0
answers
71
views
Looping segments breaks some players
I used ffmpeg to generate some segment files that I'm using as slate to play before a program starts. Using nodejs, I'm generating a an m3u8 file that loops perfectly in HLS.js, but on some players (...
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1
vote
1
answer
25
views
How can I crop four videos into an unusual aspect ratio, and then stack them all on top of each other?
This seems like it would have a solution but I haven't had luck online. I am working on a video project that involves taking subtitles for four videos and then stacking them on top of each other. In ...
1
vote
1
answer
63
views
FFMPEG : Add video (partial video effect) under the image with ffmpeg
I have a video, video.mp4, and an image, artwork.png
I would like, to use FFmpeg:
To display the video.mp4 effect inside the image artwork.png
If possible, resize output.mp4 as per the demo ...
1
vote
0
answers
245
views
MPEG-TS imprecise cut position on exact PTS, if cutting audio as well
Good morning, after 1 month of research and attempts, still wondering the correct solution.
I have frequently tv mpeg-ts (h264+aac) file to cut part from. I have a script to cut at exact times ...
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1
vote
0
answers
21
views
Is the EF mount on the BMPCC 6k weak? If yes, how weak?
BACKGROUND / PROBLEM
Hi, I plan on getting a Blackmagic Pocket Cinema Camera 6k g2 sometime soon, and don't know the physical limits of what the body of it can withstand. I've heard that EF lens ...
1
vote
0
answers
8
views
How to clip an image/layer like photoshop to an animation that has a transparent background in Premier pro?
Good day! I'm new to premiere pro, and here is my issue. I have an animation/sequence I'm currently compositing in premiere pro that has a transparent background and I forgot to add shadows on it, ...
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1
vote
0
answers
286
views
ffmpeg drawtext + colorspectrum - background partly transparent only
I am currently working with the drawtext/alphamerge filters to have the text coloured with colorspectrum on a transparent background. While I have been trying many options, the closest I managed to ...
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