Tag: stream

The four major streams in Java: [buffer stream] [conversion stream] [object stream] [print stream]

Article directory buffered stream 1 Overview 2. Efficiency test byte buffer stream character buffer stream Conversion flow Character encodings and character sets Character Encoding character set InputStreamReader class Specify encoding to read OutputStreamWriter class Specify encoding to write object stream ObjectOutputStream class Serialization operation ObjectInputStream class print stream This article mainly introduces the basic concepts […]

Use Qt+FFmpeg to capture the desktop for rtsp streaming and write SEI information in real time

FFmpegMedia.h #pragma once #include <QObject> class QMutex; template<typename> class QFutureWatcher; class FFmpegMedia: public QObject { Q_OBJECT public: FFmpegMedia(QObject *parent = nullptr); ~FFmpegMedia(); inline void setCodecName(const QString & amp;codec) { mdesCodec = codec; } inline void setTargetWindowTitle(const QString & amp;title) { mwindowTitle = title; } inline void setFrameRate(int rate) { mframeRate = rate; } inline int […]

JS reverse engineering of mainstream websites (with source code attached) [11.8 has been updated for a certain travel website]

Foreword Continuously updated long articles, the source code will be synchronized in my PythonSpider project in github Source code click here The main purpose of writing articles is to record the learning process. It would be best if it is helpful to everyone. Friends who want to follow can follow me This article will tackle […]

list.stream().sorted() Java8 Stream’s sorted() sorting. Forward order, reverse order, multi-field sorting

For collection sorting, java8 can use sorted() of the Stream stream for sorting. ExampleBeans We will use this Bean as an example below. public class Order {<!– –> private String weight; private Double price; private String dateStr; //Ignore getter, setter, constructor, toString } Field sorting The first is the comparator Comparator, which has the following […]

final finally finalize difference stream stream Stream method mvc aop ioc understanding the difference between Collection and Collections Nacos AP, CP

Method to create thread 1. The class inherits Thread and overrides the run() method 2. The class implements the Runnable interface and overrides the run() method (no return value, no exception will be thrown) 3. Implement the Callable interface and implement the call() method (with a return value and an exception will be thrown) To […]

nginx+ffmpeg+rtsp+rtmp/http-flv streaming media service construction [full version]

nginx + ffmpeg + rtsp + rtmp/http-flv streaming media service construction [full version] Install nginx and its dependencies gcc installation yum -y install gcc gcc-c + + pcre installation #If you can’t pull it down, you can directly copy the link to the browser to download. I successfully downloaded it directly from the browser, and […]

[[FIFO to BRAM IP interconnection, that is, AXIstream is transferred to the verilog code on BRAM]]

FIFO to BRAM IP interconnection, that is, AXIstream is transferred to the verilog code on BRAM control.v module control #( parameter TDATA_WIDTH = 32 , parameter BRAM_A_ADDR_WIDTH = 15 , parameter BRAM_din_WIDTH = 32 , parameter BRAM_B_ADDR_WIDTH = 15 )( input [TDATA_WIDTH – 1 : 0] tdata , input tvaild, input sys_clk, input sys_rst_n , […]

The interface post requests to upload files, the files are posted in the form of a stream, and the interface receives the file stream.

import com.alibaba.fastjson.JSONObject; import org.apache.commons.lang3.StringUtils; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.ParseException; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.utils.URIBuilder; import org.apache.http.entity.ContentType; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.mock.web.MockMultipartFile; import org.springframework.web.multipart.MultipartFile; import javax.imageio.ImageIO; import javax.imageio.ImageReader; import javax.imageio.stream.ImageInputStream; import java.io.*; import java.net.HttpURLConnection; import java.net.URISyntaxException; import java.net.URL; import java.net.URLEncoder; import java.util.*; public […]

[c++] In-depth analysis of your favorite stringstream and snprintf performance

I recently wrote two similar modules in a program. One uses snprintf to output intermediate data, and the other uses stringstream lazily. And guess what? The frame is actually pressed! ! Who is holding back performance? Performance analysis experiment from Alibaba Cloud I searched online and found that someone had done a performance analysis experiment. […]