Questions tagged [video]

17683 questions
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Video-streaming the content of a div

I'm developing a teaching application and I would like to be able to stream the contents of a div (the div will contain pictures, text, a white board emulator, etc used during the lesson). The teacher should be able to switch from the regular webcam to the div when necessary. Is there any way to ach...
devamat
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Getting DOMException with playing video onload

I want to play a video when the website is loaded. For that I am using the following code: window.onload = function webisteLoaded() { var main_bg_video = document.getElementById('main_bg_video'); main_bg_video.play(); } Your browser does not support HTML5 video. Additional info: I import the s...
Filip Degenhart
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Javascript - How to change src of iframe when video ends

I would like to know how can I change the source of iframe automatically when video ends. I am using this script to generate iframe and the function onPlayerStateChange to detect when the video ends. I basically need to change the videoID after the video finishes playing. My JS: // create youtube pl...
Adam Šulc
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FFmpeg how to get an image for a particular 'coded_picture_number' together with motion vectors

I am looking for ways to get this output from ffmpeg: Basically, I would like to pass to the shell, a command that allows me to output a particular frame number, let's say coded_picture_number=200 with the motion vectors drawn into it. Any clue? Thanks in advance.
user102859
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videojs changing audio tracks programmatically [closed]

I've read the documentation twice and haven't found a way to do this. videojs on its own cannot do this, this is mentioned in the docs so I have the hls plugin which should be able to do it yet I can't find anything related to this. Can someone point me in the right direction?
slash197
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What are the technologies I have to hire to make a AI based Camera APP for a Desktop?

(Note : if the question belong to different stackexhange notify me or mark for migration.Don't downvote ) Our decided to develop an application with below features The aim of the application is to dress a person using previously uploaded clothing materials who is standing before a display with camer...
Lord Commander
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How to streaming video via VLC api in C#

I'm working on small home project for video broadcasting. I've found some example. I've found some example Example, but it does not works, because needed old version of library 0.8.6. So I found it, but I have exceptions on unmanaged code when I've tried to get components from API. So maybe somebody...
JDo
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How to download Dash video files as they appear on the server?

Is it possible, given an mpd file like https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps.mpd, to easily download all the Dash files stored on the server (assuming we know that it's static content on the server). That is, I should be able to run an HTTP server serving the content I downloaded, an...
Peter Tseng
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How to create a video from images?

I have an algorithm, which after each iteration creates a matrix. After some operations on matrix it is plotted to the user. if I run program 6 times I will get: My goal is to changing image dynamically, like a movie. I have no idea from which side to start. I found some ways of creating video from...
Sergey Vladimirovich
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use of ffmpeg select filter

I am stuck with the use of ffmpeg select filter as I want to pick up only the ending frame of a input video but I cannot figure out the selection expression for the filter to get the work done, my code looks like this: ffmpeg -i in.mp4 -filter_complex 'select=expr_selecting_lastest_frame, overla...
user651177
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How to use GPU to accelerate the processing speed of ffmpeg filter?

According to NVIDIA's developer website, you can use GPU to speed up the rendering of the ffmpeg filter. Create high-performance end-to-end hardware-accelerated video processing, 1:N encoding and 1:N transcoding pipeline using built-in > filters in FFmpeg Ability to add your own custom high-perform...
Zedd W
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Overlay a text in a Full Screen Video Player

I want to overlay or show the text html in my full screen video player. it does show in the normal screen but when I click the full screen, the text is not shown. here is what is look like when it is in normal sreen. SEE MY OVERLAY TEXT IN NORMAL VID SCREEN and when I FULL SCREEN it. WHEN FULL SCREE...
webx coding
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Changing camera Back to front while capturing the video cause a weird issue

I am creating camera app which capture video using SCRecorder. I am trying to apply multiple filters to a video. I am changing Recorder's video configuration as below func swipeableFilterView(_ swipeableFilterView: SCSwipeableFilterView, didScrollTo filter: SCFilter?) { selectedFilter = filter! reco...
Khush
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Limiting video capture frame rate on python and opencv

I am trying to capture video from ip camera and save as avi video file. At the same time script is saving the frames which contains faces as jpeg file. While script is doing these jobs cpu usage is about 100%. Because of this i want to limit frame rate only on face detection. My code is: face_cascad...
Kursat Serolar
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iOS - Merge two video into single video file with audio

I want to merge 2 video files with single file with audio. I am able to merge 2 video files, but after merging ouptut video file does not have any audio sound. Even both old video file have proper audio.I have follow this tutorial: https://www.raywenderlich.com/13418/how-to-play-record-edit-videos-i...
Ravi
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gstreamer to Kinesis Video Stream rate limiting

I am trying to send mkv file (see attributes below) to Kinesis Video Stream. I would like to have FPS of 10-15 frames per second. > ffprobe testvideo02.mkv ... Input #0, matroska,webm, from 'testvideo02.mkv': Metadata: ENCODER : Lavf57.56.101 Duration: 02:37:57.02, start: -0.007000, bitrate:...
baldr
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Video editing using PHP

Is it possible to record a voice onto the uploaded video using PHP?
jose
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How can I use mouse events on videos?

I need to play the second video only when the mouse is down. Once the mouse is up (released) it needs to go back to video 1.
Brad
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What can be the cause for “The operation was aborted(Abort Error)” - iOS mobile web

I have a video player for mobile web(HLS). We asked the user to press the play button (to get the user interaction, but we are getting the following error: AbortError: The operation was aborted Any idea what can be the reason for it? It's occur only on iOS (Chrome & Safari) Thanks Zee
Zee
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PIPELINE_ERROR_DECODE html5 video android

Html5 video does not work in chrome on android 4.1, all checks was successful: '('' MediaSource 'in window)' 'MediaSource.isTypeSupported (codec)'. I 'm trying to play MediaSource video in the browser, and it working in desktop browsers versions, it works on Android 4.4, so I see that my video shoul...
vaszol
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video is not fetching completly,

I want to fetch video from mongodb than it should play that video up to video size, but its playing only some second, i gave maxUploadSize is 20mb and maxInMemorySize also 20mb,but on the jsp page, its fetching only 1mb video even video size more than 1mb. I am not getting what to do, video should p...
Laxmi Prajapati
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How to pair screenshots with videos?

I have folder with short videos and folder with images. Most of the images are sceenshots from one of the videos, but they may not be exactly the same (different size, noise, loss of details because of compression, etc). My goal is to match every image with video it was taken from. So far, I use Ope...
velblúd
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GStreamer IOS : Running audio and video pipeline togethere get a bad access crash

I have integrated GStreamer library 1.12.2 version in my ios application that supports audio and video streaming through raspberry pi device . Functionality that has been implemeted is as follows: 1. Video streaming has to run all time in my application once the application is launched and on main s...
Parul Jain
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Converting iPhone video to mp4 and upload to PHP Server

I have an app that successfully records and uploads a file to my PHP server, unfortunately the file won't play. I received guidance that I needed to use AVAssetExportSession to convert the file to mp4 to get it to work but am having trouble incorporating this into my code correctly. I'm getting an...
techgirl
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How to get Positions and sizes of matched key points in brute force algorithm

I want to detect feature points of two consecutive video frames(current and previous frames).For that I used SIFT and brute force algorithm to extract matched key points.Now I want to get only the matched key points into current frame and their positions and sizes. How can I do that ? Is there any s...
SSR
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Can't play this video error on android videoview from API

I want to make streaming video in android apps, but I got an error Can't play this video when open my videoView page. In this case I try to get video URL from API and here is my code : @Override protected void onCreate(@Nullable Bundle savedInstanceState) { final PremiumVideo vidx = (PremiumVideo) g...
asqa
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OpenCV Python: Restarting a video

I am new to both OpenCV and Python, and I am trying to create a simple program that will read in a video file named 'SixtyFPS.mov' and replay the video when it has reached its end. Ideally I would like to have the video loop continuously. I have not been able to find a solution for this online, howe...
dbonnett
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FFMPEG- How to generate thumbnail from video in Codeigniter

I'm working on generating thumbnail from uploaded video in Codeigniter for this I'm using ffmpeg but when I'm trying to generate the thumbnail I'm getting this error ffmpeg: symbol lookup error: /usr/lib/x86_64-linux-gnu/libass.so.5: undefined symbol: FT_Outline_EmboldenXY I've already installed ffm...
Mr. Pyramid
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JavaScript play videos with same class control by play buttons with same class

I'm trying to make 3 play/pause buttons for 3 videos. Each play/pause button controls the closest video. (function () { var play = document.querySelectorAll('.video_play_button'), video = document.querySelectorAll('.timeline_video'); function videoPlay() { video.forEach(function (videoItem) {...
Shan Jiang
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OpenCV: Finding correct frame rate of video file

I am attempting to calculate the frame rate and the total number of frames in a .mov video file using OpenCV3 and Python 3. I am using OpenCV's cv2.CAP_PROP_FRAME_COUNT to get my total number of frames and I am using OpenCV's cv2.CAP_PROP_FPS to get the frame rate. The issue is that I am getting ina...
dbonnett
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How do I record a specific application running on my Mac using ffmpeg?

I just installed ffmpeg with using home-brew on Mac HighSierra. I want to record the contents (video only is fine) of an application running on my machine (as opposed to my entire Desktop). So I tried running the below davea$ ffmpeg -f gdigrab -framerate 25 -i title=DOSBox ffmpeg version 3.4.1 Cop...
Dave
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HTML5 video - Stream a rendering video

If I am rendering a video to 'test.mp4', how can the user stream what has been rendered so far? For example, the user can watch/receive the frames of the video that have been created/rendered so far without waiting till the full rendering of the video to start watching the video. Thanks!
JamesSin
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Is there any way to record video with AVCaptureMovieFileOutput and change cameras?

I want to record a video with AVFoundation and AVCaptureSession using AVCaptureMovieFileOutput. I want to record a video like Instagram Stories, so I want to change the camera while the video is recording. The problem with AVCaptureMovieFileOutput is that when I change the captureDevice in the capt...
croigsalvador
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VAST 1.0 to VAST 2.0 convertion

I am interested in video ads. I know php and js programming languages. Perhaps I am able to create VAST 1.0 to VAST 2.0 or 3.0 converter for getting tags from VAST 1.0 adserver. Or perhaps somebody has already created the converter. Where could I find differences about VAST 1.0 and VAST 2.0 versions...
trzczy
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How to reduce audio delay in FFmpeg using HTTP FLV stream?

I have problem with live http flv stream. I'm using the following command and it works great except for the audio. Audio has delay that increasing over time. I can fix the this by removing refresh rate option on the output (-r 30) but then stream latency goes higher for about half second. ffmpeg -f...
albert200000
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Picking a video which is not of type mov from gallery

Picking a video which is not of type mov from gallery. I have the following code, which works for videos which are taken from an iPhone. However if I have an image of type mov which I save to my phone and try to choose that, nothing happens. The app doesn't crash but didFinishPicking is not triggere...
user2363025
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Get frame of video for video filter is very slow to get. Is there any other way?

I am trying to get video frame for filtering video. There are two techniques available 1) MediaMetadataRetriver and 2)FFMpegMediaMetadataRetriver but both are work slow for me. Here is code where I am getting frame. MediaMetadataRetriever metadataRetriever2; metadataRetriever2 = new MediaMetadataRet...
Nikhil Solanki
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Html 5 Video angular 5

I am making an angular app to play video from my local folders , previously it was working fine when I was doing with nodejs but when I switched to .net with the same angular code it gives me error. CODE: ERROR: GET http://localhost:62416/VideoList/orm/ORM.mp4 404 (Not Found) I do not know why. file...
Asif Khan
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Issues with using youtube auto generated transcript with Jwplayer

I am facing issues with using youtube auto generated transcript with Jwplayer. Here are links http://academy.social27.com/welcome.aspx --- This is for Jwplayer Youtube video link is https://www.youtube.com/watch?v=3GSGhlo5R-I Transcript vtt file link is: http://s27platformmedia.blob.core.windows.net...
Dalvir Saini
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Video Conferencing with Hololense

I know that Skype has an extension for video conference between Hololense user and desktop user. You can send video and hologram from hololense to the desktop user. And desktop user can draw something in hololense view and send image data/received video with an image back to Hololense. You can ev...
Alex

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