javacv多线程录制rtmp

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mob64ca12df9869 2024-06-01 04:08:24 ©著作权

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使用JavaCV多线程录制RTMP

在视频直播和录制的应用中，常常需要将实时视频流通过RTMP协议推送到服务器端。而JavaCV是一个基于OpenCV和FFmpeg的Java接口库，可以用于处理视频和音频流。本文将介绍如何使用JavaCV实现多线程录制RTMP的功能。

流程图

flowchart TD
    A(开始) --> B(初始化摄像头和音频设备)
    B --> C(创建RTMP推流器)
    C --> D(开始录制)
    D --> E(结束录制)
    E --> F(释放资源)

代码示例

首先，我们需要引入JavaCV和相关的依赖：

<dependency>
    <groupId>org.bytedeco</groupId>
    <artifactId>javacv</artifactId>
    <version>1.5.4</version>
</dependency>
<dependency>
    <groupId>org.bytedeco</groupId>
    <artifactId>javacv-platform</artifactId>
    <version>1.5.4</version>
</dependency>

然后，初始化摄像头和音频设备：

import org.bytedeco.opencv.global.opencv_core;
import org.bytedeco.javacv.*;
import org.bytedeco.opencv.opencv_core.IplImage;

public class VideoCaptureThread implements Runnable {

    private FrameGrabber grabber;
    private FrameRecorder recorder;

    public void run() {
        try {
            grabber = FrameGrabber.createDefault(0);
            grabber.start();
            
            recorder = FrameRecorder.createDefault("rtmp://server/live/stream", grabber.getImageWidth(), grabber.getImageHeight());
            recorder.start();
            
            while (true) {
                Frame frame = grabber.grab();
                recorder.record(frame);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            grabber.stop();
            recorder.stop();
        }
    }
}

创建RTMP推流器并启动录制：

public class RTMPRecorder {

    public static void main(String[] args) {
        VideoCaptureThread videoThread = new VideoCaptureThread();
        AudioCaptureThread audioThread = new AudioCaptureThread();
        
        Thread videoRecorder = new Thread(videoThread);
        Thread audioRecorder = new Thread(audioThread);
        
        videoRecorder.start();
        audioRecorder.start();
    }
}