Upnp控制点无法播放音频

Question

这是设置SetAVTransportURI操作的正确格式吗？

echo ' 
<?xml version="1.0"?> 
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
<s:Body> 
    <u:SetAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1"> 
    <InstanceID>0</InstanceID> 
    <CurrentURI>http://www.vorbis.com/music/Epoq-Lepidoptera.ogg</CurrentURI> 
    <CurrentURIMetaData></CurrentURIMetaData> 
    </u:SetAVTransportURI> 
    </s:Body> 
</s:Envelope> 
' | curl -v -d @- \ 
-H 'SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetAVTransportURI"' \ 
-H 'content-type: text/xml; charset="utf-8"' \ 
-H 'Connection: close' \ 
http://192.168.1.6:49152/ctl/AVTransport 

我得到一个501错误作为响应

* Hostname was NOT found in DNS cache 
* Trying 192.168.1.6... 
* Connected to 192.168.1.6 (192.168.1.6) port 49152 (#0) 
> POST /ctl/AVTransport HTTP/1.1 
> User-Agent: curl/7.35.0 
> Host: 192.168.1.6:49152 
> Accept: */* 
> SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetAVTransportURI" 
> content-type: text/xml; charset="utf-8" 
> Connection: close 
> Content-Length: 432 
> 
* upload completely sent off: 432 out of 432 bytes 
< HTTP/1.1 500 Internal Server Error 
< CONTENT-LENGTH: 411 
< CONTENT-TYPE: text/xml; charset="utf-8" 
< DATE: Fri, 20 Oct 2017 19:22:34 GMT 
< EXT: 
* Server Linux/4.9.28-v7+, UPnP/1.0, Portable SDK for UPnP devices/1.6.19+git20141001 is not blacklisted 
< SERVER: Linux/4.9.28-v7+, UPnP/1.0, Portable SDK for UPnP devices/1.6.19+git20141001 
< X-User-Agent: redsonic 
< 
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
<s:Body> 
<s:Fault> 
<faultcode>s:Client</faultcode> 
<faultstring>UPnPError</faultstring> 
<detail> 
<UPnPError xmlns="urn:schemas-upnp-org:control-1-0"> 
<errorCode>501</errorCode> 
<errorDescription>Action Failed</errorDescription> 
</UPnPError> 
</detail> 
</s:Fault> 
</s:Body> 
</s:Envelope> 
* Connection #0 to host 192.168.1.6 left intact 

PS - 我还试图加入DDLite元数据（有和没有逸出）至CurrentURIMetadata。它提供了相同的501错误

<DIDL-Lite xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:sec=\"http://www.sec.co.kr/\" xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\""><item id=\"0\" parentID=\"-1\" restricted=\"false\""><res protocolInfo=\"http-get:*:audio/ogg:*\"">http://www.vorbis.com/music/Epoq-Lepidoptera.ogg</res"></item"></DIDL-Lite"> 

PPS - 没有什么在the docs暗示了什么错误。

Answer 1

啊。看起来连接必须是keep-alive，currenturimetadata有一些字段，XML正确转义。一些渲染者如果空着就会发疯。

echo ' 
<?xml version="1.0"?> 
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
<s:Body> 
    <u:SetAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1"> 
    <InstanceID>0</InstanceID> 
    <CurrentURI>http://www.vorbis.com/music/Epoq-Lepidoptera.ogg</CurrentURI> 
    <CurrentURIMetaData>&lt;DIDL-Lite xmlns=&quot;urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/&quot; xmlns:dc=&quot;http://purl.org/dc/elements/1.1/&quot; xmlns:sec=&quot;http://www.sec.co.kr/&quot; xmlns:upnp=&quot;urn:schemas-upnp-org:metadata-1-0/upnp/&quot;&gt;&lt;item id=&quot;0&quot; parentID=&quot;-1&quot; restricted=&quot;false&quot;&gt;&lt;res protocolInfo=&quot;http-get:*:audio/ogg:*&quot;&gt;http://www.vorbis.com/music/Epoq-Lepidoptera.ogg&lt;/res&gt;&lt;/item&gt;&lt;/DIDL-Lite&gt;</CurrentURIMetaData> 
    </u:SetAVTransportURI> 
    </s:Body> 
</s:Envelope> 
' | curl -v -d @- \ 
-H 'SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetAVTransportURI"' \ 
-H 'content-type: text/xml; charset="utf-8"' \ 
-H 'Connection: keep-alive' \ 
http://192.168.1.6:49152/ctl/AVTransport