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Bug 650646 - rtspsrc doesn't connects by multicast
rtspsrc doesn't connects by multicast
Status: RESOLVED WONTFIX
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
0.10.29
Other Linux
: Normal normal
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2011-05-20 07:59 UTC by beemaster
Modified: 2011-05-24 07:44 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Patched file to workaround bugs of some camera which viloates RFC2326 (185.51 KB, text/x-csrc)
2011-05-24 07:41 UTC, beemaster 		Details

Description beemaster 2011-05-20 07:59:01 UTC 
After successful 'DESCRIBE' query rtspsrc sends 'SETUP' query which tunes up unicast instead of multicast although camera said multicast address '228.5.6.1':

########
$ gst-launch-0.10 rtspsrc location=rtsp://192.168.0.101:7070 debug=true ! fakesink
Установка конвейера в состояние PAUSED...
RTSP request message 0xbfa8fa94
 request line:
   method: 'OPTIONS'
   uri:    'rtsp://192.168.0.101:7070/'
   version: '1.0'
 headers:
   key: 'User-Agent', value: 'RealMedia Player Version 6.0.9.1235 (linux-2.0-libc6-i386-gcc2.95)'
   key: 'ClientChallenge', value: '9e26d33f2984236010ef6253fb1887f7'
   key: 'CompanyID', value: 'KnKV4M4I/B2FjJ1TToLycw=='
   key: 'GUID', value: '00000000-0000-0000-0000-000000000000'
   key: 'RegionData', value: '0'
   key: 'PlayerStarttime', value: '[28/03/2003:22:50:23 00:00]'
   key: 'ClientID', value: 'Linux_2.4_6.0.9.1235_play32_RN01_EN_586'
 body:
RTSP response message 0xbfa8fa78
 status line:
   code:   '200'
   reason: 'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '1'
   key: 'Date', value: 'Thu, Jan 01 2004 15:36:01 GMT'
   key: 'Public', value: 'OPTIONS'
   key: 'Public', value: 'DESCRIBE'
   key: 'Public', value: 'SETUP'
   key: 'Public', value: 'PLAY'
   key: 'Public', value: 'TEARDOWN'
 body: length 0
RTSP request message 0xbfa8fa94
 request line:
   method: 'DESCRIBE'
   uri:    'rtsp://192.168.0.101:7070/'
   version: '1.0'
 headers:
   key: 'Accept', value: 'application/sdp'
 body:
RTSP response message 0xbfa8fa78
 status line:
   code:   '200'
   reason: 'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '2'
   key: 'Date', value: 'Thu, Jan 01 2004 15:36:01 GMT'
   key: 'Content-Base', value: 'rtsp://192.168.0.101:7070/'
   key: 'Content-Type', value: 'application/sdp'
   key: 'Content-Length', value: '279'
 body: length 280
00000000 (0x93de9f8): 76 3d 30 0d 0a 6f 3d 2d 20 31 30 37 32 39 37 31  v=0..o=- 1072971
00000010 (0x93dea08): 33 36 31 30 30 36 39 30 30 30 30 20 31 20 49 4e  36100690000 1 IN
00000020 (0x93dea18): 20 49 50 34 20 32 32 38 2e 35 2e 36 2e 31 0d 0a   IP4 228.5.6.1..
00000030 (0x93dea28): 73 3d 53 65 73 73 69 6f 6e 20 73 74 72 65 61 6d  s=Session stream
00000040 (0x93dea38): 65 64 20 62 79 20 52 54 50 2f 52 54 53 50 20 73  ed by RTP/RTSP s
00000050 (0x93dea48): 65 72 76 65 72 0d 0a 69 3d 49 50 20 45 6e 63 6f  erver..i=IP Enco
00000060 (0x93dea58): 64 65 72 20 52 54 50 20 73 74 72 65 61 6d 65 72  der RTP streamer
00000070 (0x93dea68): 0d 0a 74 3d 30 20 30 0d 0a 61 3d 74 6f 6f 6c 3a  ..t=0 0..a=tool:
00000080 (0x93dea78): 49 50 20 45 6e 63 6f 64 65 72 20 52 54 50 20 73  IP Encoder RTP s
00000090 (0x93dea88): 74 72 65 61 6d 65 72 20 56 32 30 30 39 2e 30 32  treamer V2009.02
000000a0 (0x93dea98): 2e 30 35 0d 0a 61 3d 74 79 70 65 3a 62 72 6f 61  .05..a=type:broa
000000b0 (0x93deaa8): 64 63 61 73 74 0d 0a 61 3d 63 6f 6e 74 72 6f 6c  dcast..a=control
000000c0 (0x93deab8): 3a 2a 0d 0a 61 3d 72 61 6e 67 65 3a 6e 70 74 3d  :*..a=range:npt=
000000d0 (0x93deac8): 6e 6f 77 2d 0d 0a 6d 3d 76 69 64 65 6f 20 35 30  now-..m=video 50
000000e0 (0x93dead8): 30 30 20 52 54 50 2f 41 56 50 20 32 36 0d 0a 63  00 RTP/AVP 26..c
000000f0 (0x93deae8): 3d 49 4e 20 49 50 34 20 32 32 38 2e 35 2e 36 2e  =IN IP4 228.5.6.
00000100 (0x93deaf8): 31 0d 0a 61 3d 63 6f 6e 74 72 6f 6c 3a 74 72 61  1..a=control:tra
00000110 (0x93deb08): 63 6b 31 0d 0a 0d 0a 00                          ck1.....        
sdp packet 0xbfa8fa18:
 version:       '0'
 origin:
  username:     '-'
  sess_id:      '107297136100690000'
  sess_version: '1'
  nettype:      'IN'
  addrtype:     'IP4'
  addr:         '228.5.6.1'
 session_name:  'Session streamed by RTP/RTSP server'
 information:   'IP Encoder RTP streamer'
 uri:           '(NULL)'
 connection:
  nettype:      '(NULL)'
  addrtype:     '(NULL)'
  address:      '(NULL)'
  ttl:          '0'
  addr_number:  '0'
 key:
  type:         '(NULL)'
  data:         '(NULL)'
 attributes:
  attribute 'tool' : 'IP Encoder RTP streamer V2009.02.05'
  attribute 'type' : 'broadcast'
  attribute 'control' : '*'
  attribute 'range' : 'npt=now-'
 medias:
  media 0:
   media:       'video'
   port:        '5000'
   num_ports:   '4294967295'
   proto:       'RTP/AVP'
   formats:
    format  '26'
   information: '(NULL)'
   connections:
    nettype:      'IN'
    addrtype:     'IP4'
    address:      '228.5.6.1'
    ttl:          '0'
    addr_number:  '0'
   key:
    type:       '(NULL)'
    data:       '(NULL)'
   attributes:
    attribute 'control' : 'track1'
RTSP request message 0xbfa8f944
 request line:
   method: 'SETUP'
   uri:    'rtsp://192.168.0.101:7070/track1'
   version: '1.0'
 headers:
   key: 'Transport', value: 'RTP/AVP/UDP;unicast;client_port=41650-41651'
 body:
RTSP response message 0xbfa8f928
 status line:
   code:   '404'
   reason: 'Stream Not Found'
   version: '1.0'
 headers:
   key: 'CSeq', value: '3'
   key: 'Date', value: 'Thu, Jan 01 2004 15:36:01 GMT'
 body: length 0
ОШИБКА: Конвейер не хочет становиться на паузу.
ОШИБКА: из элемента /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0: Не удалось записать в ресурс.
Дополнительная отладочная информация:
gstrtspsrc.c(4563): gst_rtspsrc_setup_streams (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0:
Error (404): Not Found
Установка конвейера в состояние NULL...
Freeing pipeline ...
########


If I force rtspsrc to use multicast only then rtspsrc sends 'SETUP' query without 'client_port' field on which camera replies 'Bad Request':

########
RTSP request message 0xbfe73044
 request line:
   method: 'SETUP'
   uri:    'rtsp://192.168.0.101:7070/track1'
   version: '1.0'
 headers:
   key: 'Transport', value: 'RTP/AVP/UDP;multicast'
 body:
RTSP response message 0xbfe73028
 status line:
   code:   '400'
   reason: 'Bad Request'
   version: '1.0'
 headers:
   key: 'Date', value: 'Thu, Jan 01 2004 15:59:40 GMT'
   key: 'Allow', value: 'OPTIONS'
   key: 'Allow', value: 'DESCRIBE'
   key: 'Allow', value: 'SETUP'
   key: 'Allow', value: 'PLAY'
   key: 'Allow', value: 'TEARDOWN'
 body: length 0
########


Here is what VLC (which works with this camera well) sends in similar case:

########
SETUP rtsp://192.168.1.100:7070/track1 RTSP/1.0
CSeq: 4
User-Agent: LibVLC/1.1.9 (LIVE555 Streaming Media v2011.01.06)
Transport: RTP/AVP;multicast;client_port=5000-5001
########
Comment 1 beemaster 2011-05-20 13:27:39 UTC 
I have hacked file 'gstrtspsrc.c' from 'good plugins' v.0.10.28 source package
by replacing this line in function 'gst_rtspsrc_create_transports_string':

    //g_string_append (result, ";multicast");
    g_string_append (result, ";multicast;client_port=5000-5001");

Now the camera responds 'OK' on 'SETUP' request but rtspsrc plugin cannot parse it's respond:

######
RTSP request message 0xbf80fa94
 request line:
   method: 'SETUP'
   uri:    'rtsp://192.168.0.102:7070/track1'
   version: '1.0'
 headers:
   key: 'Transport', value: 'RTP/AVP;multicast;client_port=5000-5001'
 body:
RTSP response message 0xbf80fa78
 status line:
   code:   '200'
   reason: 'OK'
   version: '1.0'
 headers:
   key: 'CSeq', value: '3'
   key: 'Date', value: 'Thu, Jan 01 2004 23:09:30 GMT'
   key: 'Transport', value: 'multicast;destination=228.5.6.2;port=5000-5001;ttl=16'
   key: 'Session', value: '5'
 body: length 0
0:00:00.032873870 16121  0x9c71050 ERROR                rtspsrc gstrtspsrc.c:5325:gst_rtspsrc_open_from_sdp:<rtspsrc0> setup failed
ОШИБКА: Конвейер не хочет становиться на паузу.
ОШИБКА: из элемента /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0: Не найдены поддерживаемые потоки. Возможно вам нужно указать больше протоколов или верное GStreamer RTSP расширение.
Дополнительная отладочная информация:
gstrtspsrc.c(5158): gst_rtspsrc_setup_streams (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0
Установка конвейера в состояние NULL...
######


This line from errors log:

######
0:00:00.111733881 ^[[336m16085^[[00m  0x9e2f050 ^[[33;01mWARN   ^[[00m ^[[00m             rtspsrc gstrtspsrc.c:5030:gst_rtspsrc_setup_streams:<rtspsrc0>^[[00m failed to parse transport multicast;destination=228.5.6.2;port=5000-5001;ttl=16
######


I can provide more info and more tests if it helps us to make rtspsrc plugin really good.
Comment 2 beemaster 2011-05-20 15:53:46 UTC 
Update: the first part of bug was fixed in 'plugins-good' v0.10.29.
Now it doesn't require to define multicast explicitly.
But the rest is still the same: 'Bad Request' response from camera after 'SETUP' request.
Comment 3 Sebastian Dröge (slomo) 2011-05-23 12:44:16 UTC 
can you please re-run your pipelines with LC_ALL=C LANG=C to get english error messages? Also a debug log with GST_DEBUG=rtp*:5,rtsp*:5 might be useful
Comment 4 beemaster 2011-05-24 07:41:59 UTC 
Created attachment 188435 [details]
Patched file to workaround bugs of some camera which viloates RFC2326
Comment 5 beemaster 2011-05-24 07:44:46 UTC 
As said wtay from irc chat, my IP-camera violates RFC2326.
So I have patched the source file 'gstrtspsrc.c' to accomodate it for my camera.
It seems VLC team did the same thing.
I supply patched source file.
I don't know how to make a patch which would work in general case.
So who are interested can use my patched file as is.