html5-video

问题 I have 3 canvas on a line, and in each I want to put an image (screenshot form a video, at different time). The problem is that all 3 screenshots are at the same time (the last time specified). Bellow is my JavaScript code. function getVideoScreenShot(videoFile, currentIncidentTime, idx) { var images = []; for(var canvas=1; canvas<=3; canvas++) { var canvasId = "#canvas"+ idx + canvas; var milisec = parseInt(currentIncidentTime)%1000; var secFromMilisec = milisec/1000; var sec = (parseInt

问题 I'm trying to use the html5 video tag to embed an mp4 but I'm having some issues that vary across different browsers. My code looks like this: <video controls="controls" width="640" height="360"> <source src="http://www.mydomain.com/video.mp4" type="video/mp4" /> </video> IE - Won't recognize the file when trying to embed (edit: IE was actually dragging on the file size not the format) and when the uri to my video is plugged into the address bar it opens the video in windows media player.

问题 I am using the HTML5 video tag on android and sometimes the chrome browser says it requires an explicit user gesture/click to start playback: Failed to execute 'play' on 'HTMLMediaElement': API can only be initiated by a user gesture I know this is a known issue in Android but what I don't understand is why sometimes it plays automatically and on other occasions it requires a user action! I am using the video tag with autoplay option. 回答1: As of January 24th, 2017 HTML5 video tags can

问题 I am using the HTML5 video tag on android and sometimes the chrome browser says it requires an explicit user gesture/click to start playback: Failed to execute 'play' on 'HTMLMediaElement': API can only be initiated by a user gesture I know this is a known issue in Android but what I don't understand is why sometimes it plays automatically and on other occasions it requires a user action! I am using the video tag with autoplay option. 回答1: As of January 24th, 2017 HTML5 video tags can

问题 Hi I have some very basic html for a video: <div class="video_holder"> <video id="video_player" controls="controls" poster=""> <source id="video_mp4" src="" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' /> </video> </div> in my js: function playFile(e) { ... e.preventDefault() var selected = $(this); var path = selected.attr('href'); $("#video_mp4").attr('src', path); // how do I get this thing to auto-play????? }; This works great for injecting the correct path into the src attribute,

问题 Hi I have some very basic html for a video: <div class="video_holder"> <video id="video_player" controls="controls" poster=""> <source id="video_mp4" src="" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' /> </video> </div> in my js: function playFile(e) { ... e.preventDefault() var selected = $(this); var path = selected.attr('href'); $("#video_mp4").attr('src', path); // how do I get this thing to auto-play????? }; This works great for injecting the correct path into the src attribute,

问题 Is HTML5 <video> tag be play video in reverse, or I have to download 2 videos ( forward and backword play ). Any solution that avoid user from downloading 2 videos? 回答1: Without even going into HTML5 or Javascript, many video formats are streaming formats that are designed to be played forward. Playing it backwards would require decoding the whole stream, storing each raw frame on the disk to avoid clobbering memory, then rendering the frames backwards. At least one person actually tried that

问题 I am working on jwplayer video and I need to prevent the video from download. When i double click on mobile chrome browser while video is playing it gives me the download option. I have study so many articles and blogs posts about this but still could not find any solution. I don't want to use HLS stream option. Is there any parameter jwplayer use that recognize the authenticated users and play video only for them? or is there any other way to do it.? 回答1: If you are worried about the video

问题 I've got an autoplaying video which works well on all browsers, except Chrome - which has apparently disabled autoplay video. I've tried some work arounds, but now it just plays for 1-2 seconds and stops entirely. Here's my code: <video id="introduction-video" preload="auto" playsinline autoplay muted loop volume="0" poster="/images/videos/video-background.png" width="100%" height="100%"> <source src="/images/videos/Tasman10seconds.mp4" type="video/mp4"> <source src="/images/videos

问题 I have a program for educators (written with electronjs framework) that plays videos, skipping to preset points in the video as defined in a companion JSON file. Sometimes there is a significant lag after a skip, and this answer suggests that the lag is there because of infrequent keyframes. Assuming this is correct, I would like to insert keyframes at exact points in the mp4 file where I know the player will skip to. However, some of these video files are already quite large, so I do not