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

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373 views

Is it possible in FFMPEG to change scale over time?

Ok, so using the overlay filter, one can change the x/y location of a video over time by using the "t" variable. For example, overlay=x='if(gte(t,2), -w+(t-2)*20, NAN)':y=0 can be used to start ...
3
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199 views

Using ffmpeg to cut videos with more precision than key frames allow

I'm trying to cut a video (a debate on TV) with ffmpeg without re-encoding, and I need to cut between 2 sentences a guy pronounce. I think the precise moment is between two keyframes, because whatever ...
3
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0answers
29 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 ...
2
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27 views

Video codec for progressive enhancement

JPEG has a progressive enhancement mode where a full frame can be downloaded quickly at low quality, and then the quality enhanced as the file is continually loaded. (Example image from ...
2
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0answers
25 views

ffmpeg h264 crashes IE intermittently

First for moderators, this is relevant because I have incorporated ffmpeg in a program to render videos needed for a web-app. My problem is that the videos I render randomly crash IE 11. Other ...
2
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59 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 ...
2
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483 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 ...
2
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0answers
89 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 ...
2
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357 views

Determining original resolution of an upscaled digital image?

It is believed that anime is made at resolutions below 1080p. most anime are [made in 720p]. Very few anime series are produced in native 1080p. Yet if anime is sold on Blu-Ray, it is ...
2
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450 views

How to render MP4 using After Effects Script with Adobe Media Encoder

I can add my composition to Adobe Media Encoder Queue using below command app.executeCommand(3800); Now how i can render it from Adobe Media Encoder using render command like this aerender ...
2
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0answers
636 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 ...
2
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197 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 ...
2
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349 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. ...
1
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23 views

Converting older DVDs to files

I am using HandBrake to rip some DVDs and am having issues with the output size. For instance, I am ripping some older TV shows that were made for 4:3. If I were to watch them from TV, they would ...
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43 views

Speeding up a portion of video leads to choppy transition

What I am trying to achieve is speed up a small portion of a video, lasting only about a second. I tried using Windows Movie Maker. What I did was import the video three times, then trim the three ...
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18 views

Is there a device that will accept 2 hdmi inputs and output a single, 3d signal with one source for each eye?

I am trying to create a DIY dualplay setup. I would like to take 2 PS4s and combine their output into a 3d signal. Then, with modified active shutter glasses, two people could simultaneously watch one ...
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23 views

How to change profile of Openshot project?

I stupidly started a project using a DVD NTSC profile, made a bunch of changes, and then realized that the final product is supposed to be DVD Widescreen NTSC. I can export it as such, but because I'm ...
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39 views

Is there a way to cut a speech video into parts on silences automatically?

As an English teacher, and also a programmer, I've created a system of listening that works this way: I choose an interesting video full of speech. I manually cut it into peices based on slinces ...
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15 views

Selecting a Layer and Keyframes without using Marquee Tool in AE

If I have a layer with some keyframes like this: When I click on it, it highlights just the layer, obviously. My question is, how can I select the keyframes under it WITHOUT using the Marquee Tool: ...
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31 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 ...
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0answers
30 views

GoPro4: Color shifts in video

I'm not sure where to put this question, but I think signal processing section is the best section to ask. So I am having a problem with my camera, apparently the filter color shifts to purple, then ...
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0answers
11 views

C4D image problems

I have added a custom image from the internet to a cylinder, and it shows up as normal when editing. However when I preview the render or render it out the image completely disappears and the cylinder ...
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35 views

Vlcj gives “taglib meta writer error” when setting metadata on video file

I am using vlcj to write some metadata to video files to create a video library which could be sorted by title, date, artist, etc. When I am trying to save the metadata that I set to the file, the ...
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29 views

Most beginner-friendly free (windows) app to juxtapose three videos into a single one?

I want to make a video to highlight some differences between different iterations of a video game from different generations. I want to start off basic: top, middle and bottom of the frame features ...
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38 views

Are there any small battery powered 360 degree cameras capable of a native “google cardboard” format output over HDMI connection?

The question is really part #2 of the following project: I'm looking into mounting a 360 degree camera to a drone to get a view like this camera captures and can output the video like a webcam in ...
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42 views

How to skip to the next video with the “Next” button in Sony DVD Architect

I inserted 10 media in a DVD project, each video has its scene/chapter markers at the beginning and 3 minutes before the end. While I preview as disc, the "Next" button works fine when skipping from ...
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28 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]; ...
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13 views

Sony Vegas 12 Not Rendering Parts Of Video

Using Sony Vegas Pro 12 and i am rendering a video. However the rendered video hasn't got any audio and some video parts are black. I am using a some transitions and i am currently trying to fix the ...
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72 views

FFmpeg : Check if the aac bitstream is malformed or not

I want to upload few sets of videos on my server and later play them in the HTML5 video tag. But some of them are not playing. I checked the audio stream and video stream of the video, they have AAC ...
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59 views

Losing audio in re-encoding with ffmpeg

I have some DVDs I want to save MP4s from. The video files are VOB files. I can play them if I change the extension to .mp4, but I can't use the seek bar in Windows Media Player. Also, the files are ...
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162 views

How to transcode HLS with multiple audio tracks

I am trying to create an HLS playlist with multiple audio streams. I have the following files: videoHD.mp4 videoSD.mp4 audioEN.mp4 audioFR.mp4 audioIT.mp4 How would I transmux these all together ...
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24 views

Hardware for exhibition video playback (long period) with timecode output

Not sure if this is the right place for such a question, but not able to find a more fitting place. I'm looking for some solid and simple video playback hardware, for playing video continously for a ...
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55 views

Problem with external playback on Canon SX50 HS Powershot

I have a Canon SX50 HS Powershot and recently I discovered that when I play videos on my SD card on my computer using the Windows Media Player, the video quality itself is much more pixelated and ...
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33 views

Cut Video Clips Per Transcription Line

I have hundreds of high quality films with transcriptions that need to be cut into short video clips per transcription line. So I need one video clip per one transcription line. Example: ...
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97 views

editing 4k and 3840 × 2160 video with a Mac pro1,1

I just got a Panasonic Gh4 camera and recorded some 4k footage with it. For editing I have a Mac pro1,1 (2007): Dual-Core Intel Xeon - 2,66 GHz NVIDIA GeForce 7300 GT - VRAM:32768 MB 15 GB memory ...
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0answers
86 views

Producing Video Lectures similar to Coursera/EDX

I would like to record video lectures using a light board scenario which is a transparent board on which one can draw as if one is drawing on the screen/camera itself. For those of you interested, ...
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0answers
52 views

AvsP - Frame sizes don't match

This is potentially the wrong exchange for this, but here goes. Trying to put scenes together in AvsP, and for some reason it isn't allowing me to splice, saying the frame size's don't match, even ...
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0answers
50 views

Equipment & Software for video bridge (video link) event

I need to create a portable setup for events built around a video bridge: The performer is abroad the audience & presenters are in-house The performer needs to see the audience & presenters ...
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492 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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34 views

Premiere vs Vegas performance in i7 CPU?

Excluding other computer components, which timeline editor is better optimized for timeline editing for Intel i7 CPU (4790k) in Windows 8.1 64 bit? Note: Timeline editing is important (Not render ...
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0answers
105 views

Producing and streaming to a local Network

i'm facing the challenge of creating a "TV-Show". To understand why i do this i will explain it in detail, but summarize it in the end, for the ones who just want to know what my problem is. LONG ...
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78 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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346 views

FFMPEG Sync Audio & Video From Pi Camera & USB Microphone

Posted this in the Raspberry Pi community, but it got closed for being off topic. Reposting in the hopes that it is now in the right place. I am trying to stream low-quality audio & video from my ...
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0answers
75 views

How to remove a part of a moving object from a video?

I have a video in which I want to remove part of an object in every frame and then render the video again. I have tried photoshop and after effect. Both of them work somehow, but they degrade video ...
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0answers
318 views

How to detect which part of the video is using copyright audio on facebook

I am having a issue i.e: Facebook deletes the video uploaded by me and says It contains copyright audio. It is 6min video so how could I know which part is being aborted by Facebook. Thanks a ...
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337 views

ffmpeg-php with fixed width and height and without stretch or squish

Hi there I googled for hours but no success to solve... This code works for me exec("ffmpeg -i $SourcePath -ar 22050 -ab 32 -f wemp -vf scale=500x400,setdar=16:9 $uploadpath1 2>&1"); but ...
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0answers
94 views

Filter commentary from AC3 stream in MKV

a question from a a total non-expert in video/audio editing. I have an MKV file (let's call it X) which contains an AC3 file which has some constant and unnecessary (for me) comments for visually ...
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87 views

Choppy slide titles animation in Premiere

Look at what I mean: Youtube link Titles slide to the center all choppy, laggy, like they are skipping frames... I tried with better quality 1920 etc... but all that does is enlarge my picture which ...
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0answers
144 views

Kdenlive Render Effects

I'm using Kdenlive on Linux Mint 16, and I was finding that my keyframed "Box Blur" effect was significantly slowing down playback, and so I thought there might be a way to render the effects on a ...
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0answers
61 views

How Can I Eliminate Moiré With Blackmagic 2.5K?

Just picked up Blackmagic camera. Shooting in 2.5K for a series of interviews and experiencing excessive moire throughout all subjects. There are no obnoxious patterns on anyone, so I'm wondering ...