/**
 * 按幀錄制視頻
 * @param inputFile-該地址可以是網(wǎng)絡直播/錄播地址，也可以是遠程/本地文件路徑
 * @param outputFile
 * 該地址只能是文件地址，如果使用該方法推送流媒體服務器會報錯，原因是沒有設置編碼格式
 * @throws FrameGrabber.Exception
 * @throws FrameRecorder.Exception
 * @throws org.bytedeco.javacv.FrameRecorder.Exception
 */
public static void frameRecord(String inputFile, String outputFile, int audioChannel)
throws Exception, org.bytedeco.javacv.FrameRecorder.Exception {
	boolean isStart=true;//該變量建議設置為全局控制變量，用于控制錄制結(jié)束
	// 獲取視頻源
	FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(inputFile);
	// 流媒體輸出地址，分辨率（長，高），是否錄制音頻（0:不錄制/1:錄制）
	FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(outputFile, 1280, 720, audioChannel);
	// 開始取視頻源
	recordByFrame(grabber, recorder, isStart);
}

private static void recordByFrame(FFmpegFrameGrabber grabber, FFmpegFrameRecorder recorder, Boolean status)
		throws Exception, org.bytedeco.javacv.FrameRecorder.Exception {
	try {//建議在線程中使用該方法
		grabber.start();
		recorder.start();
		Frame frame = null;
		while (status&& (frame = grabber.grabFrame()) != null) {
			recorder.record(frame);
		}
		recorder.stop();
		grabber.stop();
	} finally {
		if (grabber != null) {
			grabber.stop();
		}
	}
}

public static void main(String[] args)
		throws FrameRecorder.Exception, FrameGrabber.Exception, InterruptedException {
	 String inputFile = "rtsp://admin:admin@192.168.2.236:37779/cam/realmonitor?channel=1&subtype=0";
	 // Decodes-encodes
	 String outputFile = "recorde.mp4";
	 frameRecord(inputFile, outputFile,1);
}