reassign 430364 gstreamer0.10-plugins-good
thanks

So it seems that the problem is in RTSP, which explains why this stream
works fine in mplayer and not in gstreamer: since they share the same
ffmpeg, but have different rtsp implementations.

The URL for the stream can be shortened to
rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra.

If I get a verbose log with 

gst-launch rtspsrc
location='rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra'
 debug=true ! decodebin ! fakesink

something interesting shows up *before* the bit about "Method Not Valid
in This State":

RTSP response message 0xbfd3458c
 status line:
   code:    '461'
   reason:  'Unsupported transport'
   version: '1.0'
 headers:
   key: 'CSeq', value: '2'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
 body: length 0

This is presumably the actual problem.

When the stream plays properly in realplayer, it reports that it is
using UDP.  I don't know how to get mplayer to tell me which transport
is being used.

Attached is the full output of the above debug session of the rtspsrc
widget.

Thomas

RTSP request message 0xbfd34720
 request line:
   method:  'OPTIONS'
   uri:     
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra'
   version: '1.0'
 headers:
 body:
RTSP response message 0xbfd34704
 status line:
   code:    '200'
   reason:  'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '0'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
   key: 'Server', value: 'Helix Server Version 11.1.3.1887 (linux-rhel4-i686) 
(RealServer compatible)'
   key: 'Public', value: 'OPTIONS, DESCRIBE, ANNOUNCE, PLAY, PAUSE, SETUP, 
GET_PARAMETER, SET_PARAMETER, TEARDOWN'
   key: 'RealChallenge1', value: 'ec05186fee308a7c4fd5bfc2345cbc15'
 body: length 0
RTSP request message 0xbfd34720
 request line:
   method:  'DESCRIBE'
   uri:     
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra'
   version: '1.0'
 headers:
   key: 'Accept', value: 'application/sdp'
 body:
RTSP response message 0xbfd34704
 status line:
   code:    '200'
   reason:  'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '1'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
   key: 'Content-Base', value: 
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra/'
   key: 'Content-Type', value: 'application/sdp'
   key: 'Content-Length', value: '2654'
 body: length 2655
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  username:     '-'
  sess_id:      '404501'
  sess_version: '404501'
  nettype:      'IN'
  addrtype:     'IP4'
  addr:         '212.58.227.84'
 session_name:  'World Service Live News'
 information:   'RealSystem Broadcast Distribution'
 uri:           '(null)'
 connection:
  nettype:      'IN'
  addrtype:     'IP4'
  address:      '0.0.0.0'
  ttl:          '0'
  addr_number:  '0'
 key:
  type:         '(null)'
  data:         '(null)'
 attributes:
  attribute 'SdpplinVersion' : '1610641560'
  attribute 'StreamCount' : 'integer;1'
  attribute 'control' : '*'
  attribute 'AvgBitRate' : 'integer;47890'
  attribute 'Flags' : 'integer;2'
  attribute 'DataOffset' : 'integer;1202'
  attribute 'AvgPacketSize' : 'integer;600'
  attribute 'IsRealDataType' : 'integer;1'
  attribute 'Preroll' : 'integer;2229'
  attribute 'Indexable' : 'integer;1'
  attribute 'MaxBitRate' : 'integer;47890'
  attribute 'MaxPacketSize' : 'integer;600'
  attribute 'IndexOffset' : 'integer;0'
  attribute 'NumInterleavePackets' : 'integer;0'
  attribute 'LiveStream' : 'integer;1'
  attribute 'Title' : 'buffer;"V29ybGQgU2VydmljZSBMaXZlIE5ld3MA"'
  attribute 'Copyright' : 
'buffer;"KEMpIEJyaXRpc2ggQnJvYWRjYXN0aW5nIENvcnBvcmF0aW9uIDIwMDcA"'
  attribute 'Author' : 'buffer;"QkJDIFdvcmxkIFNlcnZpY2UA"'
  attribute 'Content Rating' : 'string;"(PICS-1.1 
\"http://www.classify.org/safesurf\"; labels comment \"RealProducer Plus 
8.5.0.391 Solaris\" ratings (SS~~000 1))"'
  attribute 'Modification Date' : 'string;"4/30/2007 23:42:58"'
  attribute 'Generated By' : 'string;"RealMedia Build Engine 6.0.11.402 Unix"'
  attribute 'Target Audiences' : 'string;"28K Modem (20 Kbps);56K Modem (34 
Kbps);"'
  attribute 'Video Quality' : 'string;"No Video"'
  attribute 'Audio Format' : 'string;"No Audio"'
  attribute 'Creation Date' : 'string;"4/30/2007 23:42:58"'
 medias:
  media 0:
   media:       'audio'
   port:        '0'
   num_ports:   '-1'
   proto:       'RTP/AVP'
   formats:
    format  '101'
   information: '(null)'
   key:
    type:       '(null)'
    data:       '(null)'
   attributes:
    attribute 'control' : 'streamid=0'
    attribute 'range' : 'npt=0-'
    attribute 'length' : 'npt=0'
    attribute 'rtpmap' : '101 x-pn-multirate-realaudio-live/1000'
    attribute 'fmtp' : '101 '
    attribute 'mimetype' : 'string;"audio/x-pn-multirate-realaudio-live"'
    attribute 'MinimumSwitchOverlap' : 'integer;200'
    attribute 'StartTime' : 'integer;0'
    attribute 'AvgBitRate' : 'integer;20672'
    attribute 'AvgPacketSize' : 'integer;600'
    attribute 'SeekGreaterOnSwitch' : 'integer;0'
    attribute 'Preroll' : 'integer;4458'
    attribute 'IsInterleaved' : 'integer;9'
    attribute 'MaxPacketSize' : 'integer;600'
    attribute 'MaxBitRate' : 'integer;20672'
    attribute 'RMFF 1.0 Flags' : 'buffer;"AAYAAgAAAAIAAAACAAA="'
    attribute 'OpaqueData' : 
'buffer;"TUxUSQAGAAAAAAABAAEAAgACAAMAAABWLnJh/QAFAAAucmE1AAABYAAFAAAARgABAAABYAAAAAAAAUL/AAAAAAAIAWAAIAAAAAArEQAAKxEAAAAQAAFnZW5yY29vawECAAAAAAAIAQAAAQEAAAwAAABWLnJh/QAFAAAucmE1AAACNAAFAAAARgACAAACNAAAAAAAAdpnAAAAAAAIAjQALwAAAABWIgAAViIAAAAQAAFnZW5yY29vawECAAAAAAAIAQAAAQIAABIAAABWLnJh/QAFAAAucmE1AAACWAAFAAAARgADAAACWAAAAAAAAl2fAAAAAAAJAlgAPAAAAABWIgAAViIAAAAQAAFnZW5yY29vawECAAAAAAAIAQAAAQIAABc="'
    attribute 'StreamName' : 'string;"Audio Stream"'
    attribute 'ASMRuleBook' : 'string;"#($Bandwidth < 
16193),AverageBandwidth=11025,Priority=5;#($Bandwidth < 
16193),AverageBandwidth=0,Priority=5,OnDepend=\"0\", 
OffDepend=\"0\";#($Bandwidth >= 16193) && ($Bandwidth < 
20672),AverageBandwidth=16193,Priority=5;#($Bandwidth >= 16193) && ($Bandwidth 
< 20672),AverageBandwidth=0,Priority=5,OnDepend=\"2\", 
OffDepend=\"2\";#($Bandwidth >= 
20672),AverageBandwidth=20672,Priority=5,PNMKeyframeRule=T;#($Bandwidth >= 
20672),AverageBandwidth=0,Priority=5,OnDepend=\"4\", 
OffDepend=\"4\",PNMNonKeyframeRule=T;"'
RTSP request message 0xbfd345a8
 request line:
   method:  'SETUP'
   uri:     
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra/streamid=0'
   version: '1.0'
 headers:
   key: 'Transport', value: 
'RTP/AVP/UDP;unicast;client_port=33814-33815,RTP/AVP/UDP;multicast,RTP/AVP/TCP;unicast;interleaved=0-1'
 body:
RTSP response message 0xbfd3458c
 status line:
   code:    '461'
   reason:  'Unsupported transport'
   version: '1.0'
 headers:
   key: 'CSeq', value: '2'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
 body: length 0
RTSP request message 0xbfd347c4
 request line:
   method:  'PLAY'
   uri:     
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra'
   version: '1.0'
 headers:
   key: 'Range', value: 'npt=0-'
 body:
RTSP response message 0xbfd347a8
 status line:
   code:    '455'
   reason:  'Method Not Valid in This State'
   version: '1.0'
 headers:
   key: 'CSeq', value: '3'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
   key: 'Allow', value: 'OPTIONS, DESCRIBE, SETUP, ANNOUNCE, TEARDOWN, 
GET_PARAMETER, SET_PARAMETER'
 body: length 0
New clock: GstSystemClock
ERROR: from element /pipeline0/rtspsrc0: Could not read from resource.
Additional debug info:
gstrtspsrc.c(2892): gst_rtspsrc_send (): /pipeline0/rtspsrc0:
Got error response: 455 (Method Not Valid in This State).
Execution ended after 186000 ns.
RTSP request message 0xbfd347d0
 request line:
   method:  'TEARDOWN'
   uri:     
'rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra'
   version: '1.0'
 headers:
 body:
RTSP response message 0xbfd347b4
 status line:
   code:    '454'
   reason:  'Session Not Found'
   version: '1.0'
 headers:
   key: 'CSeq', value: '4'
   key: 'Date', value: 'Sat, 23 Jun 2007 20:29:48 GMT'
 body: length 0

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