perf(snap): 优化点播成功后截图使用 rtsp 流, 新增对 H265 编码视频截图的支持

src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMRESTfulUtils.java

@@ -323,9 +323,9 @@ public class ZLMRESTfulUtils {
         sendPost(mediaServerItem, "kick_sessions",param, null);
     }
 
-    public void getSnap(MediaServerItem mediaServerItem, String flvUrl, int timeout_sec, int expire_sec, String targetPath, String fileName) {
+    public void getSnap(MediaServerItem mediaServerItem, String streamUrl, int timeout_sec, int expire_sec, String targetPath, String fileName) {
         Map<String, Object> param = new HashMap<>(3);
-        param.put("url", flvUrl);
+        param.put("url", streamUrl);
         param.put("timeout_sec", timeout_sec);
         param.put("expire_sec", expire_sec);
         sendGetForImg(mediaServerItem, "getSnap", param, targetPath, fileName);

src/main/java/com/genersoft/iot/vmp/service/impl/MediaServerServiceImpl.java

@@ -547,6 +547,7 @@ public class MediaServerServiceImpl implements IMediaServerService {
 
         Map<String, Object> param = new HashMap<>();
         param.put("api.secret",mediaServerItem.getSecret()); // -profile:v Baseline
+        param.put("ffmpeg.snap", "%s -rtsp_transport tcp -i %s -y -f mjpeg -t 0.001 %s");
         param.put("hook.enable","1");
         param.put("hook.on_flow_report","");
         param.put("hook.on_play",String.format("%s/on_play", hookPrex));

src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java

@@ -266,7 +266,7 @@ public class PlayServiceImpl implements IPlayService {
                 onPublishHandlerForPlay(mediaServerItemInuse, response, device.getDeviceId(), channelId);
                 hookEvent.response(mediaServerItemInuse, response);
                 logger.info("[点播成功] deviceId: {}, channelId: {}", device.getDeviceId(), channelId);
-                String streamUrl = String.format("http://127.0.0.1:%s/%s/%s.live.flv", mediaServerItemInuse.getHttpPort(), "rtp",  ssrcInfo.getStream());
+                String streamUrl = String.format("rtsp://127.0.0.1:%s/%s/%s", mediaServerItemInuse.getRtspPort(), "rtp",  ssrcInfo.getStream());
                 String path = "snap";
                 String fileName = device.getDeviceId() + "_" + channelId + ".jpg";
                 // 请求截图