video

问题 Can I make a countdown to the end of the HTML5 video? <video id="video" width="400" height="225" preload="auto"> <source src="video.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' /> </video> <div id="countdown">Video ends after <span>XX</span> seconds.</div> I understand that a have to wait for the video load, and then if the video is loaded, need to know the length and run video and coundown. 回答1: Listen to the timeupdate event fired by the video object and update the time remaining.

问题 I want reduce the video size at Android Studio and for upload to PlayStore needs to be compatible for 64 bits arquitecture, I tried before with ffmpeg and it compress mp4 succefully but take longer time and this solution with 3gp not include the audio. Theres another option or library to compress mp4 and 3gp with audio and video? 回答1: Here is another library to compress videos. This library can compress videos in low, medium and high quality. Usage example: VideoCompress.compressVideoMedium("

问题 I want reduce the video size at Android Studio and for upload to PlayStore needs to be compatible for 64 bits arquitecture, I tried before with ffmpeg and it compress mp4 succefully but take longer time and this solution with 3gp not include the audio. Theres another option or library to compress mp4 and 3gp with audio and video? 回答1: Here is another library to compress videos. This library can compress videos in low, medium and high quality. Usage example: VideoCompress.compressVideoMedium("

问题 I have some JavaScript code I found online that provides stats to google analytics for my HTML5 video. The code however only CORRECTLY displays stats for "video played" and "video paused" but the rest of the information won't display or even calculate. The rest of the info is: "25% video watched", "50% video watched", "75% video watched", "100% video watched". How can I get the code below working properly? Also, is google analytics the only way to track these stats or is there another way?

问题 What's the trick to getting AVPlayer video content to show up in one's view? We are using the following AVPlayer code but nothing is appearing on screen. We know the video is there because we were able to show it using an MPMoviePlayerController. Here is the code we are using: AVAsset *asset = [AVAsset assetWithURL:videoTempURL]; AVPlayerItem *item = [[AVPlayerItem alloc] initWithAsset:asset]; AVPlayer *player = [[AVPlayer alloc] initWithPlayerItem:item]; player.actionAtItemEnd =

问题 If I simply copy and paste an HTML code provided by YouTube into a .Rmd file, this works fine for gitbook output. Here is an example of the code <iframe width="560" height="315" src="https://www.youtube.com/embed/9AI3BkKQhn0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen> </iframe> However, I get error messages for PDF and EPUB outputs. In order to avoid this, I thought I could use conditional compilation, e.g. ```{r} if (knitr

问题 I have been reading several posts (http://tinyurl.com/nqtfh9a...) and links (http://www.cardinalpeak.com/blog/the-h-264-sequence-parameter-set/) about SPS and PPS, but cannot really get the idea. I have bought an encoder with a SDK. In the specifications, it gives me this SPS and PPS, and I was wondering if there is any frame rate information here: SPS= 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, 0x9a, 0x74, 0x05, 0x81, 0xec, 0x80 I used an h264 analyzer and I got this information: Found

问题 I have been reading several posts (http://tinyurl.com/nqtfh9a...) and links (http://www.cardinalpeak.com/blog/the-h-264-sequence-parameter-set/) about SPS and PPS, but cannot really get the idea. I have bought an encoder with a SDK. In the specifications, it gives me this SPS and PPS, and I was wondering if there is any frame rate information here: SPS= 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, 0x9a, 0x74, 0x05, 0x81, 0xec, 0x80 I used an h264 analyzer and I got this information: Found

问题 So i've got a video file and the path to it (e.g. /outerfolder/innerfolder/video.mp4 ). I now want to encode this video with Base64 in JS so that I am able to store it in a database. If you could help me with the encoding of the video file, I would be very thankful. Thanks in advance. 回答1: You could encode the file with the following function to convert your file to an ArrayBuffer: [update] //<input type=file id="encondeMP4"> var encodeMP4 = document.getElementById('encondeMP4'); You now add

问题 So i've got a video file and the path to it (e.g. /outerfolder/innerfolder/video.mp4 ). I now want to encode this video with Base64 in JS so that I am able to store it in a database. If you could help me with the encoding of the video file, I would be very thankful. Thanks in advance. 回答1: You could encode the file with the following function to convert your file to an ArrayBuffer: [update] //<input type=file id="encondeMP4"> var encodeMP4 = document.getElementById('encondeMP4'); You now add