h 264 playback

BasisLet's take a quick look at some basic audio knowledge.At present, we need to rely on audio files for audio playback on the computer, audio file generation process is the sound information sampling, quantization and encode the digital signal generated by the process, the sound that the human ear can hear, the lowest frequency is from 20Hz to the highest frequency 20KHZ, So the maximum bandwidth for the audio file format is 20KHZ. According to the

(3) Stop video playbackNext add stop control for video file playback, open the MainPage.xaml file, and add a Stop button to the grid element to stop the video from playing, as shown in the following code: " Content= " Stop "grid.column=" 2 ">After adding the Stop button, next add the Click event handler Stopclick for this button. Open the Mainpage.xaml.h header file and add the following code to declare the Stopclick function.Private???? Stop button?

Since writing this article when hanging ladder, come back to find no pictures sorry everyone ..... Now I've changed!2016.5.27 15 o'clock Yin at BJ Reprint please indicate source: Dung 乧 http://blog.csdn.net/wooder111/article/details/51513582 Original translation: Click to jumpIn this article, I'll show you how to implement video playback in a list. In popular applications, such as Facebook,instagram or Magisto works the same:Facebook's:M

In the previous study, video and audio playback were performed separately. This is mainly for the convenience of learning, after a period of study, the FFmpeg also have a certain understanding, this article introducesHow to use multithreading to play audio and video simultaneously (not synchronized), and the previous learning code is refactored to facilitate later extension.This article mainly has the following aspects the content: The overal

This document records the Audio Playback Technology of SDL. The version used here is sdl2. In fact, SDL does not provide the video/audio playback function. It only encapsulates the underlying API for video/audio playback. On Windows, SDL encapsulates direct3d APIs for video playback and directsound APIs for audio

I have been rebuilding the workstation track playback function some time ago. At first I thought it was very simple, but it caused a series of strange problems, which made me very painful, so I had to write a summary to deepen my memory. Background: The whole function is actually to extract data from the database and play it on the interface. Simply put, it is similar to watching videos online and listening to music on the Internet, but what I get is

1. Use the music background playback function(1) Import audio playback frameImport Avfoundation(2) Creating an audio playback objectInitializes the audio player object and zodiac the audio playback object as the View controller class.var audioplayer:avaudioplayer = Avaudioplayer ()Override Func Viewdidload () {Super.vi

iOS Development extension-Package audio file Playback Tool classA simple explanation1. A brief description of music playback(1) music plays with a class called Avaudioplayer(2) Common methods of AvaudioplayerLoading music files-(ID) Initwithcontentsofurl: (nsurl *) URL error: (nserror * *) Outerror;-(ID) Initwithdata: (NSData *) Data error: (NSERROR * *) Outerror;Ready to play (buffer, improve the smoothnes

Requirements: Recently the company needs to do a building intercom function: the door machine (connected to WiFi) dial to the indoor machine (corresponding WiFi) devices to call, the indoor machine receives the call will be received after the data UDP broadcast forwarding, the phone (connected to the WiFi) received video stream, Real-time display video data (mobile phone can answer, hang up, phone answering, the indoor machine does not show the video, just to forward. )The simple point is that t

Tag: Time main info also has a bit of the INF margin property confOriginal intentionMultimedia this entire series of articles themselves are ready to start sorting out, first from the most simple video audio and the most commonly used playback start slowly down to the bottom of the code decoding, and so on, this article from the video playback of the simplest.How many video

Background:The whole function is actually to extract data from the database and play it on the interface. Simply put, it is similar to watching videos online and listening to music on the Internet, but what I get is string data, they take the stream file data. Divide the entire data into ten parts. Ten threads fetch data from the database at the same time (concurrency increases speed) and place the data in ten queues. The other thread extracts data from the queue and brings it to the interface f

One, Videojs introduction Reference script, Videojs very for your sake, direct CDN, you do not need to download these code into your own website If you need to support IE8, this JS can automatically generate flash Add a HTML5 video tag to the page Where post is the video thumbnail, the two source a point to the MP4 video, a point to WEBM video, during the page load process, Video.js will determine which format the browser supports video, will automatically load playable vid

1, jquery Level 5-screen picture player This is a jquery based picture playback plug-in, a total of 5 screen, there are JS code based friends can also modify the need to display according to their own needs to show the number of pictures, this jquery image playback plug-in overall sliding relatively smooth, compatible with all major browsers. 2, jquery image horizontal

HTML5 video tag (player) learning notes (2): playback control, html5videoThis article mainly introduces the HTML5 video tag (player) learning notes (2): playback control, this article describes how to get the total video duration, play, pause, obtain the video playback time, set the playback point, Volume acquisition,