wangyimeng
2023-03-04 c662a530989706b705142743e0095d5b7f331751
src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java
@@ -651,7 +651,59 @@
                        downloadResult.setMediaServerItem(inviteStreamInfo.getMediaServerItem());
                        downloadResult.setResponse(inviteStreamInfo.getResponse());
                        hookCallBack.call(downloadResult);
                    }, errorEvent);
                    }, errorEvent, eventResult ->
                    {
                        if (eventResult.type == SipSubscribe.EventResultType.response) {
                            ResponseEvent responseEvent = (ResponseEvent) eventResult.event;
                            String contentString = new String(responseEvent.getResponse().getRawContent());
                            // 获取ssrc
                            int ssrcIndex = contentString.indexOf("y=");
                            // 检查是否有y字段
                            if (ssrcIndex >= 0) {
                                //ssrc规定长度为10字节,不取余下长度以避免后续还有“f=”字段 TODO 后续对不规范的非10位ssrc兼容
                                String ssrcInResponse = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
                                // 查询到ssrc不一致且开启了ssrc校验则需要针对处理
                                if (ssrcInfo.getSsrc().equals(ssrcInResponse)) {
                                    return;
                                }
                                logger.info("[回放消息] 收到invite 200, 发现下级自定义了ssrc: {}", ssrcInResponse);
                                if (!mediaServerItem.isRtpEnable() || device.isSsrcCheck()) {
                                    logger.info("[回放消息] SSRC修正 {}->{}", ssrcInfo.getSsrc(), ssrcInResponse);
                                    if (!mediaServerItem.getSsrcConfig().checkSsrc(ssrcInResponse)) {
                                        // ssrc 不可用
                                        // 释放ssrc
                                        mediaServerService.releaseSsrc(mediaServerItem.getId(), ssrcInfo.getSsrc());
                                        streamSession.remove(device.getDeviceId(), channelId, ssrcInfo.getStream());
                                        eventResult.msg = "下级自定义了ssrc,但是此ssrc不可用";
                                        eventResult.statusCode = 400;
                                        errorEvent.response(eventResult);
                                        return;
                                    }
                                    // 单端口模式streamId也有变化,需要重新设置监听
                                    if (!mediaServerItem.isRtpEnable()) {
                                        // 添加订阅
                                        HookSubscribeForStreamChange hookSubscribe = HookSubscribeFactory.on_stream_changed("rtp", ssrcInfo.getStream(), true, "rtsp", mediaServerItem.getId());
                                        subscribe.removeSubscribe(hookSubscribe);
                                        hookSubscribe.getContent().put("stream", String.format("%08x", Integer.parseInt(ssrcInResponse)).toUpperCase());
                                        subscribe.addSubscribe(hookSubscribe, (MediaServerItem mediaServerItemInUse, JSONObject response) -> {
                                            logger.info("[ZLM HOOK] ssrc修正后收到订阅消息: " + response.toJSONString());
                                            dynamicTask.stop(downLoadTimeOutTaskKey);
                                            // hook响应,TODO 此处待处理
//                                            onPublishHandlerForPlayback(mediaServerItemInUse, response, device.getDeviceId(), channelId, playBackCallback);
//                                            hookCallBack.call(new InviteStreamInfo(mediaServerItem, null, eventResult.callId, "rtp", ssrcInfo.getStream()));
                                        });
                                    }
                                    // 关闭rtp server
                                    mediaServerService.closeRTPServer(mediaServerItem, ssrcInfo.getStream());
                                    // 重新开启ssrc server
                                    mediaServerService.openRTPServer(mediaServerItem, ssrcInfo.getStream(), ssrcInResponse, device.isSsrcCheck(), true, ssrcInfo.getPort());
                                }
                            }
                        }
                    });
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 录像下载: {}", e.getMessage());