Questions tagged [video]

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

8
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0answers
1k views

FFMPEG: Windows binaries with globbing (libavformat) support?

I am struggling to get ffmpeg to combine a bunch of images in to a video which have a format with a full 17 digit timestamp. 17 digits is well beyond what -i %d will support. So I want to use ...
4
votes
0answers
1k views

Why am I getting lost packets in ffmpeg doing local RTP streaming?

I am trying to test ffmpeg streaming with RTP via local SDP file. So to start the stream I run ffmpeg -re -thread_queue_size 4 -i .\bbb_streamable.flv -strict -2 -vcodec copy -an -f rtp rtp://127.0....
4
votes
0answers
4k views

YouTube pages unresponsive on Chrome

For one or two days now, whenever I open a YouTube page on Google Chrome, I have dialog boxes similar to this one : On this screenshot, the active tab is not the YouTube page, but the same bug ...
4
votes
0answers
546 views

How to check .mp4 file is corrupted or not.

I am recording two different videos in the .mp4 format using ffmpeg command and after that combining them. But sometimes one of the video is get corrupted because of that it will affecting on the ...
4
votes
0answers
4k views

Flux Disabling it for specific Windows/Monitors (VLC hardware overlay?)

F.lux is some color management application. My problem, with multiple monitors, is that I multitask. There are not distinct movie watching times, and coding/working/browser times; It is just all at ...
4
votes
0answers
1k views

Using ffmpeg, can I burn in subtitles directly from an mkv subtitle track instead of a subtitle file?

I have an mkv with multiple subtitle streams. I know I can use mkvextract to extract one of those subtitle streams to a file, for example, sub.srt. I can then burn those subtitles into the new video ...
4
votes
0answers
567 views

Adding audio to video being created with image2pipe option

I am creating a video in mp4 format from a sequence of images and an MP3 audio file. For performance reasons I switched from image2 option to image2pipe option and now video is creating OK but without ...
4
votes
0answers
4k views

iTunes video black screen until select computer output

I don't remember this happening before, but now whenever I play any video in iTunes (podcast video, movie, TV show, iTunes extras stuff but the menus work) it just shows a black screen with the sound ...
3
votes
0answers
128 views

How to disable picture-in-picture in Firefox?

Last month, probably in Firefox 66, a new feature showed up - picture in picture video. Now when I exit a YouTube tab playing a video and go somewhere else on the website, the previous video hangs in ...
3
votes
0answers
215 views

Strip x264 copyright information during ffmpeg copy

I am trying to remove the copyright string from the generated mp4 file using ffmpeg (copyright string is already present in avi file). I have an input avi which I'd like to make 'streamable' and ...
3
votes
0answers
279 views

How to stop video auto-play (from linked video) in sharepoint online 2016

I've saved some mp4 video files into my document library on SharePoint Online 2016. From there, I've used the video links to added those videos to various pages within my SharePoint site. However, ...
3
votes
0answers
36 views

Does chrome load videos in a different way than firefox?

When trying to load videos onto a Three.js texture, I noticed that the Chrome is loading a video in ~2Mb chunks and playing the video once the chunk loads. I am comparing this with firefox where a ...
3
votes
0answers
228 views

Keep equirectangular side-data when using video filter on 360 Video in ffmpeg

I have a 360° Video and want to shift it sideways using ffmpeg so that the default viewpoint when opening the video in a player is shifted. I found this question (How to offset a video horizontally in ...
3
votes
0answers
3k views

FFmpeg error with video stream

Please see Edit 2. The problem has been updated. Error 1: Writing encrypted data to socket failed av_interleaved_write_frame(): I/O error Error 2: (libx264) Conversion failed! I'm trying to stream ...
3
votes
0answers
331 views

About adding Windows file properties from CLI (esp. for .mkv files)

[Context] I have a large collection of movies that have been grouped by their Genre. But now, I have all the files from all years of release in the same folder (I don't want to sub-divide by folders ...
3
votes
0answers
317 views

VLC: Take Snapshot of multiple Video Streams in a single MKV

I have a single MKV File with multiple Video Streams included. While playing with VLC, all of the Video Streams are shown simultaneously, each in a different Window, as expected. Now i want to take a ...
3
votes
0answers
3k views

Embedding videos in PDF without flash

As far as I understand it, from reading the documentation for media9, videos are generally embedded in PDFs by including Flash video players in the PDF. Unfortunately that means readers that can play ...
3
votes
0answers
471 views

How to make subtitles text (like stored in .srt) selectable on VLC interface?

My Question Briefly I am looking for the ability to select text (e.g. word, or group of words) from a subtitle sentence that's shown on a video — within VLC Player interface — in order to copy/reuse ...
3
votes
0answers
303 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
0answers
198 views

Save mplayer output to file when using libcaca backend

I want to play a video using mplayer -vo caca and then save the resulting video to a file. Is there a way to take that output and save it, or is there another program I can use to get the same effect?...
3
votes
0answers
3k views

QEMU/KVM can't set qxl video ram size

I'm trying to enlarge video memory size of qxl-vga device. Guest os (windows 7) shows only 16mb of video memory available. I've installed windows guest tools. When I'm trying to set more video memory ...
3
votes
0answers
6k views

Recover unfinished mp4 file

I have a problem with a broken mp4 file. I was using livestreamer to get the YouTube live stream into VLC player and then I was saving it through Save/Convert functionality of VLC player as an H.264/...
3
votes
0answers
352 views

Strange video behaviour

I have a video made by my mobile phone (Huawei Honor - Android 2.3). I haven't problems with them some time ago. Unfortunately, I have now and I don't know why. I'm using Linux Mint 17. When trying ...
3
votes
0answers
432 views

making an video a screensaver on windows 7

So I'd like to make a video a screensaver on Windows 7 and am having some difficulty doing so. So I converted my clip to a WMV and installed Photo Gallery and put the video - and just that video - in ...
3
votes
0answers
4k views

How to set output of VLC media player to decklink-Ultrastudio-SDI output? (VLC-Command-line)

I need to play a video file and send video to decklink output as PAL, But I didn't see anything about Decklink-Blackmagic in the vlc-help.txt. How can I send a video to decklink-Ultrastudio-SDI ...
3
votes
0answers
182 views

Windows 8.1 Video Screensaver shows grey film

I have a touch screen on display. I want the system to have a little video screen saver. I installed Windows Essentials so I would have this functionality. When trying to play the screensaver all I ...
3
votes
0answers
741 views

Crop video with FFMPEG based on data from tracking algorithm

I have tracked a moving object in a video file using OpenTLD. This generated a file with the coordinates of the object's bounding box for each frame. Now I would like to use ffmpeg to crop the video ...
3
votes
0answers
5k views

avconv stream video from USB webcam without delay

I need to stream video from USB webcam. I am using avconv, but it has delay min 5s. Is possible to stream in real time without delay? avconv -f video4linux2 -i /dev/video0 -vcodec libx264 -f mpegts ...
3
votes
0answers
2k views

ffmpeg add alpha channel to a video

Basically I have a video with a green background, and I mean a perfect green background (red = 0, green = 255, blue = 0) and I want to convert this to alpha (i.e add an alpha channel where 0 255 0 ...
3
votes
0answers
706 views

Upscale any video-size while concatting multiple videos in ffmpeg

I already asked this question at Stack-Overflow, but they said I should post it here, so here it is: I looked for 2 hours through the documentation, but I couldn't figure it out. I currently write a ...
3
votes
0answers
930 views

Packets are not in the proper order with respect to DTS when using libx264 for video

I'm trying to use the following command to transcode one stream to a different format and send it over to RTMP server for live streaming. This is the command I am using: ffmpeg -f mxg -i http://...
3
votes
0answers
3k views

Convert stream file (mux) to mp4 gstreamer

I used a program to capture my screen (called Kazam for linux). My computer crashed and I lost my screen capture which I cannot recreate. I found two files that seem to hold my video, a .mux and ....
3
votes
0answers
279 views

Indicate in Windows which video files have been viewed

A rather specific problem... I watch video's using VLC. (I've found Windows Media Player and XBMC too cumbersome.) We are always trying to find which was the latest show in a series that we last ...
3
votes
0answers
892 views

Append JPG to MPG Video ffmpeg/mencoder

I've found a lot of solutions for creating a video from a folder of jpgs, in this case a time lapse stream of photos from a camera. Thats easy, but seems to waste a lot of computing power ...
3
votes
0answers
2k views

Playing and recording a live stream from another computer webcam using VLC/FFmpeg

I was trying lately to set a video server on one machine and play it in a differen machine, it works with me.. but the problem is that it always stuck and become jammed in the middle .. and it is very ...
3
votes
0answers
4k views

Change VLC recording format

I'm using VLC 2.0.2 to stream videos from YouTube and I'm hitting the "Record" button at times so I can store the more interesting parts of the stream on my PC. I was using this just yesterday and it ...
3
votes
0answers
328 views

Is there a working method for recreating a quicktime video resource fork?

A few years ago, I backed up a directory of family movies in quicktime format to my NAS. Unfortunately, only the data files went, and NOT the resource forks. Months later when I went to import those ...
3
votes
0answers
71 views

Playlist file format for video segments

Is there a playlist file format listing segments of files instead of entire files? For example it would start playing a file jumping straight to 3'12", play it untill 5'42" and switch to the next ...
3
votes
0answers
676 views

Is it possible to get Skype to show video side-by-side instead of picture-in-picture?

I want to do some live broadcasting of video calls and I'd like to have the two video boxes from a Skype call be side by side instead of picture in picture. Is this possible on either Mac or PC?
3
votes
0answers
1k views

Is there a way to make FFmpeg seek faster to an end of file on a network share?

I'm using ffmpeg to generate image previews from flv videos. The OS is Debian 5 and it's the apt version of ffmpeg. The flv files are located on a NAS share that is mounted as NFS. Getting the ...
2
votes
0answers
68 views

Can a monitor with Thunderbolt 3 have video-in and power-out using the same cable?

We have purchased a Dell XPS 13 (NEW 2019) laptop, Samsung C34J79 and an Apple Thunderbolt 3 USB-C Cable. It is my understanding that the laptop can be charged using as little as 45W using USB-C or ...
2
votes
0answers
474 views

Extend video without re-encoding/encoding/re-compressing/transcoding

I want to change the audio of a video but the audio is longer than the video, when I mux them (ffmpeg -i "audio.m4a" -i "video.webm" -acodec copy -vcodec copy "out.mkv") the video that comes out doesn'...
2
votes
0answers
157 views

Default video app keeps resetting from MPV on MacOS

The Problem I use the mpv video player to play all videos on my mac, though I also have VLC installed. The problem is that after a while my default video application changes to VLC (and/or Quicktime, ...
2
votes
0answers
1k views

What is the best way to test a GPU's dedicated memory?

I have a Dell Inspiron 3542 that sometimes displays short vertical lines when Windows 7 boots instead of the animated but logo, but they disappear immediately at the next loading step. I wanted to ...
2
votes
0answers
353 views

ffmpeg concat filter adds audio delay gradually

I use ffmpeg to concatenate a lot of video files, using filter_complex. However, the result file has its audio out of sync gradually. and I use mediainfo --Inform='Video;%Duration%' filename.ext and ...
2
votes
0answers
6k views

Download video with blob url

I'm not an expert of html code. I need to download a video from the webpage https://www.telegranducato.it/2018/07/21/tg-toscana-del-21-07-2018-edizione-delle-2030-granducato-tv/ Unfortunately the ...
2
votes
0answers
708 views

How can a video File (.MOV) play perfectly in VLC and other players but not open in Premiere Pro?

A four Gig Quicktime (.MOV) video file (a video taken on an iPhone) plays perfectly on VLC, Windows Media Player and PotPlayer but when imported into Adobe Premiere Pro 5.5 the following error message ...
2
votes
0answers
442 views

streaming my desktop to youtube using ffmpeg

There are tutorials out there on how to stream to youtube using ffmpeg, and I have that part of the code done. However, I do not know how to stream the desktop in ffmpeg. The tutorials online only ...
2
votes
0answers
26 views

ffmpeg surpressing video length even though im not

So I run script which creates screenshots of various videos and save them in given folders. Script is checking how long is video and saves few random frames from within that range. For some videos ...
2
votes
0answers
316 views

Combine images and gif to a single video?

My project is to join all image files (currently only JPGs) in a folder to a single video file. All images are the same size (1080p) and each one should be displayed for 3s in the output video. Here's ...