Problem getting CityTv streams to download with rtmpdump

jedix · #1 10-10-2011, 02:24 PM

When I download the videos with the following command, the videos won't play in ffmpeg or any player I've tried:

Code:

rtmpdump -r "rtmpe://cp80642.edgefcs.net/ondemand/?ovpfv=2.1.4" -y "mp4:citytv/1632712407/1632712407_1206922320001_citytv-fringe-s4-e03-copy.mp4" -W "hXXp://admin.brightcove.com/viewer/us20110929.2031/connection/ExternalConnection_2.swf" -o ep3.mp4

Here is the error I get when trying to use an XBMC plugin to stream the content:

Code:

15:18:54 T:140727866607360    INFO: (object end)
15:18:54 T:140727866607360    INFO: Previous line repeats 5 times.
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x29
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x28
15:18:54 T:140727866607360    INFO: Previous line repeats 1 times.
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x29
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x28
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x29
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x28
15:18:54 T:140727866607360    INFO: Previous line repeats 1 times.
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x29
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, unknown packet type received: 0x28
15:18:54 T:140727866607360    INFO: RTMP_ClientPacket, received: invoke 40995 bytes

Here's what mplayer/vlc/ffmpeg reports:

Code:

$ ffmpeg -i ep1.mp4 -y -f mjpeg -ss 10.00 -vframes l -an test.jpgffmpeg version 0.8.5, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct  9 2011 14:49:12 with gcc 4.5.2
  configuration: 
  libavutil    51.  9. 1 / 51.  9. 1
  libavcodec   53.  7. 0 / 53.  7. 0
  libavformat  53.  4. 0 / 53.  4. 0
  libavdevice  53.  1. 1 / 53.  1. 1
  libavfilter   2. 23. 0 /  2. 23. 0
  libswscale    2.  0. 0 /  2.  0. 0
[flv @ 0x1de4440] Could not find codec parameters (Video: h264)
[flv @ 0x1de4440] Could not find codec parameters (Audio: aac, 44100 Hz, 2 channels)                                                                                    
[flv @ 0x1de4440] Estimating duration from bitrate, this may be inaccurate                                                                                              
ep1.mp4: could not find codec parameters

Any help would be very much appreciated.

Thanks!

jedix · #2 10-11-2011, 06:33 PM

I've managed to verify that it is indeed a bad RTMPdump and not a bug in ffmpeg by using windows media player and flashplayer in windows. Does anyone know how the stream could be encrypted or something?

jedix · #3 10-11-2011, 06:56 PM

I'm assuming it's some sort of encryption and these details need to be used to make the stream usable.. but I don't know how with the --conn or -C option.

Code:

19:34:39 T:139870337156864   ERROR: DEBUG:root:SWFURL: isSlim=true&wmode=opaque&debuggerID=&optimizedContentLoad=true&bgcolor=%23000000&playerID=911449494001&flashID=myExperience45047864001&height=480&width=640&autoStart=&publisherID=1632712407&%40videoPlayer=1192789504001
19:34:39 T:139870337156864  NOTICE: .
19:34:39 T:139870337156864  NOTICE: {'app': u'ondemand/', 'scheme': u'rtmpe', 'querystring': None, 'playpath': u'mp4:citytv/1632712407/1632712407_1192774924001_citytv-fringe-s4-e02-copy.mp4', 'netloc': u'cp80642.edgefcs.net'}
19:34:39 T:139870337156864   ERROR: DEBUG:root:STREAM_URL: rtmpe://cp80642.edgefcs.net/ondemand/?ovpfv=2.1.4 playpath=mp4:citytv/1632712407/1632712407_1192774924001_citytv-fringe-s4-e02-copy.mp4 swfurl=hXXp://admin.brightcove.com/viewer/us20110929.2031/connection/ExternalConnection_2.swf swfvfy=true
19:34:39 T:139870337156864  NOTICE: .
19:34:39 T:139870817015776   DEBUG: WaitOnScriptResult- plugin returned successfully
19:34:39 T:139870337156864    INFO: Scriptresult: Success
19:34:39 T:139870337156864    INFO: Python script stopped
19:34:39 T:139870337156864   DEBUG: Thread XBPyThread 139870337156864 terminating
19:34:39 T:139870817015776   DEBUG: CPlayerCoreFactory::GetPlayers(rtmpe://cp80642.edgefcs.net/ondemand/?ovpfv=2.1.4 playpath=mp4:citytv/1632712407/1632712407_1192774924001_citytv-fringe-s4-e02-copy.mp4 swfurl=hXXp://admin.brightcove.com/viewer/us20110929.2031/connection/ExternalConnection_2.swf swfvfy=true)

jedix · #4 10-11-2011, 07:13 PM

Here's the output of the command.. Why do I get the client sent 6, server answered 9 issue if I have RTMPdump version 2.4?

Code:

$ rtmpdump -r "rtmpe://cp80642.edgefcs.net/ondemand/?ovpfv=2.1.4" -y "mp4:citytv/1632712407/1632712407_1206922320001_citytv-fringe-s4-e03-copy.mp4" -W "hXXp://admin.brightcove.com/viewer/us20110929.2031/connection/ExternalConnection_2.swf" -o test.mp4 
RTMPDump v2.4
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
WARNING: HandShake: Type mismatch: client sent 6, server answered 9
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO:   duration              2617.26
INFO:   moovPosition          40.00
INFO:   width                 832.00
INFO:   height                468.00
INFO:   videocodecid          encv
INFO:   audiocodecid          enca
INFO:   avcprofile            77.00
INFO:   avclevel              31.00
INFO:   aacaot                2.00
INFO:   videoframerate        29.97
INFO:   audiosamplerate       44100.00
INFO:   audiochannels         2.00
INFO: trackinfo:
INFO:   length                78517439.00
INFO:   timescale             30000.00
INFO: sampledescription:
INFO:   sampletype            encv
INFO:   length                115421184.00
INFO:   timescale             44100.00
INFO: sampledescription:
INFO:   sampletype            enca
248.705 kB / 2.30 sec (0.0%)

KSV · #5 10-12-2011, 12:16 AM

They are using FlashAccess DRM to protect their videos. AFAIK currently there is no method available to strip the DRM except screen capturing.

Adobe FlashAccess docs:

Code:

http://docs.google.com/viewer?url=http://help.adobe.com/en_US/flashaccess/2.0/overview.pdf&chrome=true

Encryption Object in video stream:

Code:

DEBUG: (object begin)
DEBUG: Property: <Name:         Encryption, OBJECT>
DEBUG: (object begin)
DEBUG: Property: <Name:            Version, NUMBER:	2.00>
DEBUG: Property: <Name:             Method, STRING:	Standard>
DEBUG: Property: <Name:              Flags, NUMBER:	0.00>
DEBUG: Property: <Name:             Params, OBJECT>
DEBUG: (object begin)
DEBUG: Property: <Name:            Version, NUMBER:	1.00>
DEBUG: Property: <Name: EncryptionAlgorith, STRING:	AES-CBC>
DEBUG: Property: <Name:   EncryptionParams, OBJECT>
DEBUG: (object begin)
DEBUG: Property: <Name:           keyLengh, NUMBER:	16.00>
DEBUG: (object end)
DEBUG: Property: <Name:            KeyInfo, OBJECT>
DEBUG: (object begin)
DEBUG: Property: <Name:            subType, STRING:	FlashAccessv2>
DEBUG: Property: <Name:     FMRMS_METADATA, OBJECT>
DEBUG: (object begin)
DEBUG: Property: <Name:           Metadata, STRING:	MIIWuwYJKoZIhvcNAQcCoIIWrDCCFqgCAQExCzAJBgUrDgMCGgUAMIILQAYJKoZIhvcNAQcBoIILMQSCCy0wggspAgECMIIEUDCCBEwCAQECAQEEJDJDNTg0M0I3LTFCNEYtM0FCQy1CODZCLTNGMDlFQzlCQTRGMwSCA7hQRDk0Yld3Z2RtVnljMmx2YmowaU1TNHdJaUJsYm1OdlpHbHVaejBpVlZSR0xUZ2lJSE4wWVc1a1lXeH>
DEBUG: Property: <Name:            License, STRING:	>
DEBUG: (object end)