Skip to main content

Questions tagged [video]

Video is the technology of electronically manipulating still images that represent motion.

387 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
6 votes
1 answer
1k views

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:...
Nov Angelus's user avatar
4 votes
1 answer
286 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 ...
kanija's user avatar
  • 41
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 ...
user10024395's user avatar
3 votes
0 answers
284 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 ...
JonathanReez's user avatar
3 votes
2 answers
228 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 ...
clarkland's user avatar
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 ...
user2069305's user avatar
3 votes
1 answer
91 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 ...
Guest2000's user avatar
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 ...
Daniel's user avatar
  • 131
3 votes
1 answer
311 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 ...
HungryDB's user avatar
  • 131
3 votes
0 answers
376 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 ...
Zack Mctee's user avatar
3 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 ...
Kirill's user avatar
  • 31
2 votes
0 answers
57 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
2 votes
1 answer
1k 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 ...
light's user avatar
  • 21
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 ...
turtlefish12's user avatar
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 ...
Florian Claaßen's user avatar
2 votes
1 answer
410 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 ...
Emmett Palaima's user avatar
2 votes
0 answers
33 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 ...
Dakkaron's user avatar
  • 121
2 votes
0 answers
669 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 ...
Simon East's user avatar
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 ...
AntumDeluge's user avatar
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 ...
Maschs's user avatar
  • 21
2 votes
1 answer
390 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 ...
user5155835's user avatar
2 votes
0 answers
171 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 ...
Mister Tea's user avatar
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 ...
Rapta's user avatar
  • 21
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 ...
user avatar
2 votes
1 answer
257 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 ...
Aleksandr Albert's user avatar
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 ...
user351041's user avatar
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 ...
Raju's user avatar
  • 216
2 votes
0 answers
792 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? ...
wolfadm's user avatar
  • 21
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 ...
Boris Novikov's user avatar
2 votes
0 answers
122 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 ...
user avatar
2 votes
0 answers
111 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-...
Ranniel Birao's user avatar
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 -...
Robin's user avatar
  • 175
2 votes
0 answers
432 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....
Sandy's user avatar
  • 21
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. ...
therobyouknow's user avatar
2 votes
0 answers
975 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 ...
StrongJoshua's user avatar
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 ...
Learner's user avatar
  • 21
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 ...
payne's user avatar
  • 181
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/...
Aadhi Vive's user avatar
2 votes
0 answers
1k views

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 ...
user avatar
2 votes
1 answer
881 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 ...
Sumit P. Makwana's user avatar
1 vote
1 answer
10 views

Is there an efficient (and also free or cheap) way to turn a video file into a time based composite image?

I'm doing a physics project with my math class. My students recorded a videos of a balls being dropped. (We are studying acceleration and how to model motion with quadratic equations.) The goal is to ...
David Elm's user avatar
  • 111
1 vote
0 answers
9 views

How can I convert H.264 to NTSC for analog video transmission?

For a UAV project we're using an Nvidia Jetson Nano as our mission computer on a fixed wing for object recognition purposes and we agreed that analog video transmission, widely popular with fpv drones,...
Tuğra TÜRKÜCÜ's user avatar
1 vote
1 answer
70 views

What exactly do FFmpeg options `-itsoffset` and `-itsscale` do?

If I understand correctly, the answer at Lossless A/V delay with ffmpeg seems to suggest that option -itsoffset leads to additional metadata, called "editlist", being added to the video file....
finefoot's user avatar
  • 141
1 vote
1 answer
24 views

Splitting videos andsubtitles together

I am involved in a project where we would have a video with srt or vtt subtitles and we will need to split it into multiple shorter videos with the subtitles adjusted accordingly for each of the split ...
user3474704's user avatar
1 vote
1 answer
26 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. ...
Pavi's user avatar
  • 11
1 vote
0 answers
41 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 ...
Sandeep Amarnath's user avatar
1 vote
0 answers
120 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....
Ryan's user avatar
  • 11
1 vote
0 answers
103 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 (...
m0ngr31's user avatar
  • 111
1 vote
1 answer
30 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 ...
Persimmon_Leaves's user avatar
1 vote
1 answer
72 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 ...
Ashish Chaturvedi's user avatar

1
2 3 4 5
8