java ffmpeg将视频 转换为h264的编码流输出到指定路径文件 的主线程和子线程分别是
时间: 2024-06-11 22:05:08 浏览: 15
Java中使用FFmpeg将视频转换为H264编码流输出到指定路径文件的主线程和子线程可以如下实现:
主线程:
```java
public class MainThread {
public static void main(String[] args) {
String inputPath = "input.mp4";
String outputPath = "output.h264";
int width = 640;
int height = 480;
// 创建子线程对象,并启动
SubThread subThread = new SubThread(inputPath, outputPath, width, height);
subThread.start();
// 主线程执行其他任务
// ...
}
}
```
子线程:
```java
public class SubThread extends Thread {
private String inputPath;
private String outputPath;
private int width;
private int height;
public SubThread(String inputPath, String outputPath, int width, int height) {
this.inputPath = inputPath;
this.outputPath = outputPath;
this.width = width;
this.height = height;
}
@Override
public void run() {
try {
// 创建FFmpeg命令
String[] command = new String[]{"ffmpeg", "-i", inputPath, "-s", width + "x" + height, "-c:v", "libx264", "-f", "h264", outputPath};
// 执行FFmpeg命令
Process process = Runtime.getRuntime().exec(command);
process.waitFor();
// 子线程执行完毕
// ...
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
}
}
```
在主线程中创建子线程对象,并启动子线程。子线程中执行FFmpeg命令将视频转换为H264编码流输出到指定路径文件。子线程执行完毕后,可以在主线程中执行其他任务。