Questions about video editing, streaming, conversion, capturing or video output. Use a more specific tag if possible.

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20 views

How to animate boxblur radius in FFmpeg?

I am running the following FFmpeg command which converts a single image to a 10 second slow-zoom into the center of the photo. As you can see, I currently have the boxblur looking how I would like it,...
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0answers
17 views

FFmpeg Clip part of a video with screenshot

I need to clip part a of a video using FFMPEG, which is installed on a server and I do this using PHP. In fact I am building a website for this. I know the command that does this. As it has been ...
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1answer
26 views

How do I remux selected audio tracks and subtitles using ffmpeg?

so I have a video (could be MKV or MP4) with multiple audio tracks and multiple subtitles (different languages). What I want is to remux into a new video and: selecting just 1 or 2 audio tracks ...
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1answer
32 views

framerate issue with ffmpeg zoompan filter

with a lot of searching on this board, I've been able to put the following ffmpeg command together. It creates a clip of an image scaling from 1.00 -> 1.12x over 240 frames @ 24p (10 seconds). ...
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0answers
22 views

Video file no matter the format stops playing after 3 minutes

I have a video file that I saved to a flash drive. The video was in a wmv format. The video shows that the file is 12 minutes (which is the original length) however the file only plays about 3 minutes ...
1
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1answer
3k views

Video taken on iPhone showing up as black when opened in Quicktime, but fine when opened in VLC?

I took a video on my iPhone 4S upside down. I searched around the Internet and found a post stating that Apple's QuickTime Pro can losslessly rotate/flip videos. First of all, is this definitely the ...
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1answer
54 views

Replace parts of video with another video with ffmpeg

I have a few hours long MP4 video (h264+AAC) and I need to replace small parts of it with another video (or audio only). The reason is that the file is a recording of a live session and I need to ...
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0answers
16 views

Linux USB device customized numbering

Under Linux/Yocto, I'd like to have my USB cams to be mapped device numbered from /dev/video5 and on and not to start at /dev/video0-4. I'll have those (video0-4) for other video driver use. Now I'...
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1answer
32 views

What video resolution is best? [closed]

I shot video's on my Samsung Galaxy S7 Edge (in vertical mode, not landscape) and paid no mind to what the video resolution was. I then converted the mp4 videos to avi and burnt them to dvd disc but ...
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2answers
1k views

how to join ts files together into mp4 with ffmpeg?

I download a lot of streams since the internet speed is too slow to watch high definition. When I download a stream I find the .m3u8 file which points to the TS files. Then I use the following command:...
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0answers
17 views

Unable to get video for multicast to Windows XP

Please help me with the problem of getting video on a multicast network camera. There are 2 computers with Windows XP: one works, the other does not. The network architecture is simple: a hub to which ...
3
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0answers
567 views

Possible to black out/dim second screen while using multiple displays in VLC 2.1.3 fullscreen mode?

Pardon if this is a duplicate, but I searched and could only find the reverse of my question. I remember VLC used to have an option to "not" black out the second screen when playing a video in ...
3
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1answer
35 views

How can I compress video by taking advantage of its static content?

I have an HD video that is a presentation, so it consists mostly of still images. It's a 50 minute, 200MB MP4 file, downloaded from YouTube. Is there a way to take advantage of the static nature of ...
0
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1answer
91 views

Use FFMPEG To Convert .MKV to .MP4 With Conversion Settings

I am using a powershell script and ffmpeg to convert mkv files to mp4 files so that I can stream them using serviio The script executes as it should, however when serviio tries to add the converted ...
0
votes
1answer
63 views

How can I make the Video Settings on Windows Media Player take effect?

I have Windows 7 WMP 12 the latest version of K-Lite Mega newly upgraded video card When I slide the pointer in Hue, Saturation, Brightness, and/or Contrast, the pointer stays where it is, but no ...
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1answer
26 views

Camtasia recording of recording fails to capture switch from PPT to Word

I'm using Camtasia to record a recording. The original recording is an Adobe Connect file that consists of interleaved PPT slides and Word files. So the narrator shows a PPT slide, then switches to ...
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0answers
36 views

Web player fullscreen displays only a blackscreen

I have searched all around, but haven't find any solution for this. I have a new laptop and when I try to go full screen while watching any online video, I can see only a black screen. It is the same ...
0
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1answer
54 views

ask ffmpeg subtitle and watermark on debian8 with no loss quality

please help for my case i have trouble on here for ffmpeg i use the command : ffmpeg -i whiskey.mkv -threads 0 -c:v libx264 -crf 28 -preset veryslow -vf "movie=logo.png[wm];[in][wm]overlay=0:0,...
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0answers
24 views

All video capture of desktop is rotated 45 degrees clockwise

When I try to capture video footage of my desktop, with every piece of software I have tried, it captures with the screen rotated 45 degrees. I have now tried: Shadowplay OBS, LoiLo Game recorder. ...
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0answers
54 views

Can 99.3% video play without any stucks? [duplicate]

My Friend gave 99.3% video downloaded from torrents, because he is going out of city that is why He didn't time to complete remaining 0.7% & also download speed is very low. Right now I copied to ...
0
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1answer
112 views

Overlay an image with an opacity setting in Ffmpeg

I want to overlay an image with an opacity setting I know how to overlay an image on a video, but I don’t understand how to set its opacity level too. I can easily add a watermark on my video, but ...
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0answers
26 views

manifest file used by Youtube for DASH

Streaming media files over Youtube uses Dynamic Adaptive Streaming over HTTP (DASH). Client side receives a manifest file, from which it chooses what type of video quality will it receive, depending ...
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1answer
59 views

How 85% video is still playable?

I am downloading video in torrents, now it is 85% downloaded, I accidentally clicked video, it played very well, but stucks after playing few mins. Why video played well even it is 85%?
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0answers
19 views

chrome, option to uprooting video playing capability

This need is odd, but I was asked to cancel the video viewing capability in some computers (for utilization of time ...) its easy to remove all video playback software, but there is a requirement to ...
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0answers
18 views

How to find a video page in vimeo

I've found a video embedded in a 3rd party site. https://player.vimeo.com/video/168203444 I want to open this video in vimeo site to be able to add it to my personal "watch it later" list. How can ...
0
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1answer
36 views

Want to extract out only alpha using ffmpeg

Want to extract alpha channel from the video using ffmpeg in which black will mean transparent and white will mean opaque Used this http://ffmpeg-users.933282.n4.nabble.com/quot-Extracting-quot-Alpha-...
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1answer
23 views

Transcode Multiple Video Files at a Time in VLC

I am using VLC to transcode video files, in the convert/save menu it lets you select multiple files, but when you click Convert, it just converts the first file in the list. Ideally I would be able to ...
0
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0answers
34 views

FFMPEG:merging Image and Audio duration getting increased

I am trying to create a video using a still image(.png) with audio(.wav) file using FFMPEG with video duration equal to audio duration but even keeping '-shortest' & '-loop 1' as flag, pegstill ...
0
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1answer
41 views

Copy video quality on ffmpeg

I want to use ffmpeg to add a watermark but I want the video will have the same quality. How do I do that ? I tried to use -vcodec copy -acodec copy but was without watermark <?php echo "Starting ...
2
votes
0answers
1k views

Black screen when playing video fullscreen in Windows 10

My Laptop has dual graphic card:Intel HD Graphics 530 and GTX 970m and I usually connect an external monitor to it, setting external monitor (noted as Monitor 1) as main monitor. Both monitors are on. ...
1
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1answer
77 views

Clipping a video (spatially) using FFMPEG

How can I clip a video spatially using FFMPEG, with no border added, and no quality degradation? So basically I just need to split the video into 4 parts to separate the videos, like the frame below:
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1answer
23 views

provide mp4 file as camera input

Is it possible to have a pre-recorded video on a external storage unit and connect the storage unit as a camera and stream the pre-recorded video as output from the storage unit?
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0answers
19 views

Can't play Facebook videos with Opera browser on a Macbook pro with osx. I know this has been asked before but need more assistance

Cannot play on FB and some other sites. Have found and followed various fix suggestions, like new install of Flash and Shockwave. It just will not play. Message is always "Video unavailable" etc.... ...
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0answers
55 views

Vivaldi cannot play Facebook videos and SoundCloud Music

It started about 2 weeks ago, before that all was working correctly. On one of my computers, I run Vivaldi for all users (3). On this computer, for any user, if I go to facebook and press play on a ...
1
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1answer
1k views

ffmpeg merging mp3, mp4, no sound with copy codec

I am using ffmpeg to create a video. The source is a set of png images (one per frame) and an mp3 file. I want to create an mp4 with sound. I am doing it in two stages for now. Step one converts the ...
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0answers
20 views

Gopro HDMI > Google Cardboard (DIY Video goggles)

I want to pipe the HDMI output from a GoPro into a split screen view that can be viewed from a phone to be put inside a google cardboard. For reference, I'm trying to recreate top down soccer as seen ...
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votes
1answer
49 views

how to stream HDMI video over IP and receive it via software [closed]

need: I have a computer connected to a monitor via HDMI @ 1080p (1920x1080). I need to send the video to remote locations, without breaking the current monitor setup. Remote locations need to ...
0
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1answer
30 views

ffmpeg - Is it possibe to retain real timecodes using -copyts?

It's is a simple task. I want to make a converted clip of a video using -copyts to have it's real timecodes. For example, the converted clip of this command: ffmpeg -hide_banner -ss 57:41.76 -i input....
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1answer
142 views

Change framerate in ffmpeg without reencoding

I have a mkv (h264) video that is 23.976 fps (24000/1001) but I want to convert it to 25fps without reencoding and loosing quality. I know mkvmerge can do it ( with option --default-duration '0:25fps')...
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0answers
49 views

FFMPEG motion compensation and search

I'm trying to modify the motion detection part of FFMPEG. What I want to do is to extend the search space, so that whenever the macroblock hits the rightmost edge of the frame, I need it to still move ...
3
votes
1answer
24k views

ffmpeg and the 'unable to find suitable output' error

I'm trying to convert a large MKV to an old-school AVI file. I'm trying this: ffmpeg -i video.mkv -s -codec:v mpeg4 -bf 1 -b 2567k -mbd 2 -g 300 -flags cgop -acodec copy video.avi but I get [NULL ...
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1answer
64 views

How to loop a video back and forth with ffmpeg

I have a video of 5s length. The final video should be 60s long. The resulting video should be a "ping pong" loop, meaning my 5s should be played back and forth until the 60s are reached. Does ...
1
vote
1answer
480 views

Get Delay of Each Frame In A GIF

I'd like to get the delay of each frame in a GIF. I plan to turn it into an MP4 file. In one of the answers to "How do I convert an animated GIF to a YouTube friendly video format?", it explains how ...
0
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1answer
613 views

Can Linux be installed successfully on an intel atom D2500/GMA3600?

I'm triyng to install debian on an intel D2500HN motherboard that features the GMA3600 Power VR video chip. I tested various versions, 32 and 64 bit but the result is always the same: an artifact ...
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2answers
1k views

How to set output of FFmpeg to output of a video card instead of a file? Is this possible?

I have an UltraStudio-SDI video card and I can capture with this command: ffmpeg -f dshow -video_size 720x576 -framerate 60 -i video="Decklink Video Capture":audio="Decklink Audio Capture" -r 30 -...
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votes
1answer
55 views

Choppy Firefox Video Playback on OpenBSD

I am having a problem playing audio/video through Firefox, using OpenBSD (tested using YouTube). The playback is choppy, as if the connection was not good enough. On a media player the audio is fine, ...
0
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1answer
36 views

Blocking Flash Player from router to prevent user from wasting bandwith

There is one user on the network which is always watching videos with Flash Player and eating bandwith and I cannot get the user to disable Flash Player but instead can I block it using my router? I ...
2
votes
2answers
671 views

Crossfading Video AND Audio with ffmpeg

This Super User answer crossfade between 2 videos using ffmpeg has got me so far, but now that I have tried many solutions and seen every SO link out there, it's time to ask you all for help. I am ...
1
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0answers
45 views

TV showing 1080P When my computer says it streams 4k (UHD)

So i've bought an LG 43UF680V And it's amazing, but here comes my problem: I have an ASUS X555UJ and in specs it can stream 4k throught HDMI. My screen size says it is 4k, but the tv info panel says ...
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0answers
51 views

Radeon initialisation problems (VCE init -110); notebook won't boot

I have a Dell Latitude E6540 with hybrid graphics (Intel 9540 and AMD Radeon HD 8790M), but after fiddling with drivers and running the HTC Vive setup, my computer won't boot anymore. On Linux (...