Bug#430364: more info

Thomas Bushnell BSG tb at becket.net
Sat Jun 23 20:32:08 UTC 2007


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

-------------- next part --------------
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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sdp packet 0xbfd346a4:
 version:       '0'
 origin:
  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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