调整为异步 context

gb28181-wvp-proxy-api/src/main/java/cn/skcks/docking/gb28181/wvp/api/video/RecordController.java

@@ -1,6 +1,8 @@
 package cn.skcks.docking.gb28181.wvp.api.video;
 
 import cn.skcks.docking.gb28181.wvp.service.video.RecordService;
+import jakarta.servlet.AsyncContext;
+import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -19,7 +21,7 @@ public class RecordController {
     }
 
     @GetMapping
-    public void record(HttpServletResponse response, @RequestParam String url,@RequestParam long time){
+    public void record(HttpServletRequest request, HttpServletResponse response, @RequestParam String url, @RequestParam long time){
-        recordService.record(response,url,time);
+        recordService.record(request, response,url,time);
     }
 }

gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/video/RecordService.java

@@ -2,12 +2,17 @@ package cn.skcks.docking.gb28181.wvp.service.video;
 
 import cn.hutool.core.io.IoUtil;
 import cn.hutool.core.util.IdUtil;
+import cn.skcks.docking.gb28181.wvp.executor.DefaultVideoExecutor;
+import jakarta.servlet.AsyncContext;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.bytedeco.ffmpeg.global.avcodec;
 import org.bytedeco.ffmpeg.global.avutil;
 import org.bytedeco.javacv.*;
+import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
 
 import java.io.*;
@@ -27,19 +32,27 @@ public class RecordService {
     }
 
     @SneakyThrows
-    public void record(HttpServletResponse response, String url, long timeout){
+    public void record(HttpServletRequest request, HttpServletResponse response, String url, long timeout) {
-        response.reset();
+        AsyncContext asyncContext = request.startAsync();
-        //        response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
+        asyncContext.start(() -> {
             header(response);
+            record(asyncContext.getResponse(), url, timeout);
+            log.info("record 结束");
+            asyncContext.complete();
+        });
+    }
 
+    @SneakyThrows
+    public void record(ServletResponse response, String url, long timeout) {
+        //        response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
         Path tmp = Path.of(System.getProperty("java.io.tmpdir"), IdUtil.getSnowflakeNextIdStr()).toAbsolutePath();
         File file = new File(tmp + ".mp4");
         log.info("创建文件 {}, {}", file, file.createNewFile());
 
         log.info("url {}", url);
-        try (FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(url)) {
+        FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(url);
         grabber.start();
-            try(FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(file, grabber.getImageWidth(), grabber.getImageHeight(),grabber.getAudioChannels())){
+        FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(file, grabber.getImageWidth(), grabber.getImageHeight(), grabber.getAudioChannels());
         recorder.start();
         log.info("开始录像");
         log.info("{}", file);
@@ -61,21 +74,22 @@ public class RecordService {
             while (record.get() && (frame = grabber.grab()) != null) {
                 recorder.record(frame);
             }
-                    grabber.stop();
+            grabber.close();
-                    recorder.stop();
+            recorder.close();
         } catch (FFmpegFrameRecorder.Exception | FrameGrabber.Exception e) {
             throw new RuntimeException(e);
         }
-            }
+
-        } finally {
         log.info("结束录制");
         InputStream inputStream = new BufferedInputStream(new FileInputStream(file));
         OutputStream outputStream = new BufferedOutputStream(response.getOutputStream());
         try {
             IoUtil.copy(inputStream, outputStream);
-            } catch (Exception ignore){}
+        } catch (Exception ignore) {
+        }
         log.info("临时文件 {} 写入 响应 完成", file);
         log.info("删除临时文件 {} {}", file, file.delete());
-        }
+        outputStream.close();
+
     }
 }