Programmer Think

Using ffmpeg to split the video file into several ppm pictures thinking Get path - > unpack - > get video stream information - > decode - > YUV420 to RGB - > store in ppm format. Pseudo code step1. Registration Step 2. Open audio and video files Step 3. Get audio and video stream st ...

01 RPC overview The following picture, which many small partners have seen, is a picture on Dubbo's official website describing the evolution of the project architecture. It describes the configuration and organization of each architecture. When the website traffic is very small, only one application ...

order This paper mainly studies the sentinel connection of lettuce RedisClient.connectSentinel lettuce-core-5.0.4.RELEASE-sources.jar!/io/lettuce/core/RedisClient.java private <K, V> StatefulRedisSentinelConnection<K, V> connectSentinel(RedisCodec<K, V> codec, RedisURI redisURI, Duration timeout) { asse ...

Recently, after studying netty and reading the blog for a few days, I plan to write a hands-on program by myself. This program is very simple: the client sends a ping, and the server will reply a pong accordingly. When the server loses the connection, it will be disconnected. The whole code is divided into two parts: client and server. The stru ...

Click here to enter the AI bar directory and view all articles Some commonly used Chinese code scrambling transformations collected: print("ord('I'):",ord('I')) print("chr(25105):",chr(25105)) print('\n') print("'My short book'.encode('unicode_escape'):",'My short book'.encode('unicode_escape')) print("'\\u6211\\u7684\\u7b80\\u4 ...

Use Netty to realize a simple communication model. Look at the program: 1. Server side: Class Server: import io.netty.bootstrap.ServerBootstrap; import io.netty.channel.*; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.SocketChannel; import io.netty.channel.socket.nio.NioServerSocketChannel; import ...

1. preparation   ffmpeg Link: https://pan.baidu.com/s/1oh qfxnlw5kmdf8f5etq Extraction code: rsdn It's more convenient to open Baidu online mobile App after copying this content 2. View live video through ffmepg public void run() { ProcessBuilder builder = null; List commend = new ArrayList(); commen ...

Encryption steps: Write the extractSalt() method, which generates and returns a random salt value Write the method to generate MD5 summary: getMd5Hex(String str), the parameter is String, and 32-bit hex String is returned. This method needs to import jar package: commons-codec-1.10.jar Write password generation method: generateKeywordText(Str ...

background Recently, I learned the knowledge of audio decoding from FFmpeg. I just did the work of audio G711A decoding, so I want to record and share it. Function description My requirement is to decode the data of the audio G711A of a frame, so I take a complete G711A audio data from memory to do ...

1. What is responsive programming? Why do we now think this is the trend of micro service? Let's dig a hole and give a simple formula. Responsive programming = data stream + change transfer + declarative   2. Following nonsense, don't talk much about code directly The Implementing Thought and In ...