兼容缺少y=的sdp

648540858

2021-11-20 297f8965526b9438117c78b64eb6a0b3a518c70d

兼容缺少y=的sdp

 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java

@@ -138,12 +138,21 @@
                // 解析sdp消息, 使用jainsip 自带的sdp解析方式
                String contentString = new String(request.getRawContent());

                // jainSip不支持y=字段， 移除移除以解析。
                // jainSip不支持y=字段， 移除以解析。
                int ssrcIndex = contentString.indexOf("y=");
                //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
                String ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
                String substring = contentString.substring(0, contentString.indexOf("y="));
                SessionDescription sdp = SdpFactory.getInstance().createSessionDescription(substring);
                // 检查是否有y字段
                String ssrcDefault = "0000000000";
                String ssrc;
                SessionDescription sdp;
                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
                    ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
                    String substring = contentString.substring(0, contentString.indexOf("y="));
                    sdp = SdpFactory.getInstance().createSessionDescription(substring);
                }else {
                    ssrc = ssrcDefault;
                    sdp = SdpFactory.getInstance().createSessionDescription(contentString);
                }

                //  获取支持的格式
                Vector mediaDescriptions = sdp.getMediaDescriptions(true);