Programming VIP

Recently the team built a WEB player with WASM + FFmpeg.We decode videos using FFmpeg by writing C and communicate with JavaScript on browsers by compiling C to WASM.The default FFmpeg decoded data is yuv, and canvas only supports rendering rgb, so there are two ways to handle this yuv. The first one uses FFmpeg exposure to convert YUV directl ...

Preface Sometimes the front-end development will process some data returned from the background, or do some processing according to the data judgment; at this time, it is very necessary to encapsulate some common tool classes; This paper encapsulates 59 methods according to some commonly used tool classes, of course, there are many less used ...

Some time ago, I did the function of wechat custom sharing. There was a problem that the invitation code of the shared page failed to be copied on ios mobile phone, but there was no problem on PC and Android. Baidu for a moment, the basic solution is: ios does not simply support on, for the click elements to add empty click event: onclick = &qu ...

SVN project backup Use the svnadmin tool to export locally. cd H:\Repositories svnadmin dump H:\Repositories\test > F:\svn_dump\test.dump svnadmin dump H:\Repositories\android > F:\svn_dump\android.dump svnadmin dump H:\Repositories\BackEnd > F:\svn_dump\BackEnd.dump svnadmin dump H:\Repositories\DevOps> F:\svn_dump\DevOps.dump sv ...

using namespace std; template <typename T> //Template function (generic) /*  Selection sort  **/ void selectionSort ( T arr[] , int n ){          //  10, 39, 8, 7, 6, 5, 4, 3, 2, 1     //Take out the minimum value first and then exchange          for ( int i  = 0 ;  i < n ; i ++ ){                  int minIndex = i;                  f ...

Preparation Register for appkeyIntegrated sharesdk (download address)Xcode configuration: urlScheme is the registered appkey, white list: douyinsharesdk, douyinopensdkBusiness code Initialization import <ShareSDK/ShareSDK.h> [ShareSDK registPlatforms:^(SSDKRegister *platformsRegister) { //Jitter [platformsRegister setupDouyinByAppKey:@"ap ...

9. Layer Time Layer Time The biggest difference between time and space is that time can't be reused--Forster Merrick In the previous two chapters, we explored a variety of layer animations that can be implemented with CAAnimation and its subclasses.Animation takes place over a period of time, so timing is critical to the whole concept.In thi ...

UIPickerView is a very common UI control, which is necessary for various shopping platforms to select addresses. Let's talk about the specific use First, UIPickerView is created. Like most controls, it allocates memory and sets the location size. It is important to set up the agent and data source and obey the agent and data source protocol &l ...

1.x and 2.x versions yarn add react-navigation # or with npm # npm install --save react-navigation 3.x version yarn add react-navigation # or with npm # npm install react-navigation yarn add react-native-gesture-handler react-native-reanimated # or with npm # npm install react-native-gesture-handler react-native-reanimated 1. If your version ...

This article starts with WeChat public's "Android development tour". Welcome to pay more attention to get more dry goods. Communication scenario When we do mixed development of Flutter, we usually need to communicate between Flutter and Native For example, Dart calls Native's album to select pictures, and Native actively transmits pow ...