javaCV实现rtsp转rtmp，并把视频流推到云端Nginx服务器

[shashabooey]

import org.bytedeco.javacpp.avcodec;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.OpenCVFrameConverter;

引入这些开发包实现转码跟推流服务

static boolean exit  = false;
	public static void main(String[] args) throws Exception {
		System.out.println("start...");
		String rtmpPath = "rtmp://111.230.***.***:1936/hls/YFZX2";
		String rtspPath = "rtsp://admin:admin88888@192.168.100.200:554/h264/ch34/sub/av_stream";
		
		int audioRecord =0; // 0 = 不录制，1=录制
		boolean saveVideo = false;
		push(rtmpPath,rtspPath,audioRecord,saveVideo);
		
		System.out.println("end...");
	}
 
	public static void push(String rtmpPath,String rtspPath,int audioRecord,boolean saveVideo ) throws Exception  {
		// 使用rtsp的时候需要使用 FFmpegFrameGrabber，不能再用 FrameGrabber
		int width = 640,height = 480;
		FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(rtspPath); 
		grabber.setOption("rtsp_transport", "tcp"); // 使用tcp的方式，不然会丢包很严重
		
		grabber.setImageWidth(width);
		grabber.setImageHeight(height);
		System.out.println("grabber start");
		grabber.start();
		// 流媒体输出地址，分辨率（长，高），是否录制音频（0:不录制/1:录制）
		FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(rtmpPath,width,height, audioRecord);
		recorder.setInterleaved(true);
		//recorder.setVideoOption("crf","28");
		recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264); // 28
		recorder.setFormat("flv"); // rtmp的类型
		recorder.setFrameRate(25);
		recorder.setImageWidth(width);recorder.setImageHeight(height);
	 	recorder.setPixelFormat(0); // yuv420p
	 	System.out.println("recorder start");
		recorder.start();
		//
		OpenCVFrameConverter.ToIplImage conveter = new OpenCVFrameConverter.ToIplImage();
		System.out.println("all start!!");
		int count = 0;
		while(!exit){
			count++;
			Frame frame = grabber.grabImage();
			if(frame == null){
				continue;
			}
			if(count % 100 == 0){
				System.out.println("count="+count);
			}
			recorder.record(frame); 
		}
		
		grabber.stop();
		grabber.release();
		recorder.stop();
		recorder.release();
	}

视频流是正常推出去了，但是有警告信息

[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd8500cfa00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd850c3ba00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd850c3ba00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd850c3ba00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd8500cfa00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd851513600] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd851513600] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd84fd04c00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd851513600] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd8500cfa00] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x7fd851513600] deprecated pixel format used, make sure you did set range correctly

[wangke1220]

你用的像素格式是flv不支持的，需要重新指定格式 recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);

[Love_TingHai]

可以参考： https://jingyan.baidu.com/article/6dad5075d8885fe022e36e38.html

[捕捉闪耀的瞬间]

我在回调函数里能取到视频流，就是不知道咋利用javaCV转发到rtmp

[mt23]

实在没办法解决了. 我选择无视它

//过滤掉warn 日志
avutil.av_log_set_level(avutil.AV_LOG_ERROR);

[初夏之仪]

Exception in thread "main" java.lang.NoClassDefFoundError: java.lang.ClassNotFoundException: org.bytedeco.ffmpeg.avutil.org.bytedeco.ffmpeg.global.avutil