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• Streaming MP4 frames to HTML5, what am I doing wrong ?

  5 septembre 2014, par mczarnek

  Currently I am generating a MP4 Bitstream using Intel’s Media SDK library, which uses ffmpeg underneath the covers. I can generate a mp4 file, and play it and it works.

  However, when I try to stream that mp4 across the network, it doesn’t play within the HTML5 video player, as tested within Chrome, Firefox, or IE.

  This much is sent back and forth across the network :

  Sent by Chrome:
  
  GET / HTTP/1.1
  
  Host: localhost:8085
  
  Connection: keep-alive
  
  User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.102 Safari/537.36
  
  Accept-Encoding: identity;q=1, *;q=0
  
  Accept: */*
  
  Accept-Language: en-US,en;q=0.8
  
  Range: bytes=0-
  
  
  
  From my video player:
  
  HTTP/1.1 200 OK
  
  Server: Microsoft-HTTPAPI/2.0
  
  Date: Thu, 09 Jan 2014 17:28:14 GMT
  
  Content-type: video/mp4

  After this, I send a newline, and all the video frames, one after another, while listening to see if I receive anything back from the browser.

  Then nothing happens. Any suggestions to get this playing video ? Thank you !

• Does Android 4.x support streaming RTSP over TCP ?

  9 décembre 2014, par Robert

  I’ve used VideoView in Android to play video on wowza successfully. Now I got to deal with my server which the UDP ports seems to be blocked. With the proof of openRTSP command :

  -> % openRTSP rtsp://61.218.52.250:554/live/ch00_0
  
  
  
  Opening connection to 61.218.52.250, port 554...
  
  ...remote connection opened
  
  Sending request: OPTIONS rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
  
  CSeq: 2
  
  User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
  
  
  
  
  
  Received 105 new bytes of response data.
  
  Received a complete OPTIONS response:
  
  RTSP/1.0 200 OK
  
  CSeq: 2
  
  Server: UBNT Streaming Server v1.2
  
  Public: DESCRIBE, SETUP, TEARDOWN, PLAY
  
  
  
  
  
  Sending request: DESCRIBE rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
  
  CSeq: 3
  
  User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
  
  Accept: application/sdp
  
  
  
  
  
  Received 562 new bytes of response data.
  
  Received a complete DESCRIBE response:
  
  RTSP/1.0 200 OK
  
  CSeq: 3
  
  Server: UBNT Streaming Server v1.2
  
  Content-Base: rtsp://61.218.52.250:554/live/ch00_0/
  
  Content-Type: application/sdp
  
  Content-Length: 393
  
  
  
  v=0
  
  o=- 1 1 IN IP4 127.0.0.1
  
  s=Ubiquiti Live
  
  i=UBNT Streaming Media
  
  c=IN IP4 0.0.0.0
  
  t=0 0
  
  m=video 0 RTP/AVP 99
  
  b=AS:50000
  
  a=framerate:25
  
  a=x-dimensions:1280,720
  
  a=x-vendor-id:ubnt,a521
  
  a=x-rtp-ts:4617405454576779984
  
  a=rtpmap:99 H264/90000
  
  a=fmtp:99 profile-level-id=42A01E;packetization-mode=1;sprop-parameter-sets=Z0IAKOkAoAt1xIAG3dAAzf5gDYgQlA==,aM4xUg==
  
  a=control:trackID=0
  
  
  
  Opened URL "rtsp://61.218.52.250:554/live/ch00_0", returning a SDP description:
  
  v=0
  
  o=- 1 1 IN IP4 127.0.0.1
  
  s=Ubiquiti Live
  
  i=UBNT Streaming Media
  
  c=IN IP4 0.0.0.0
  
  t=0 0
  
  m=video 0 RTP/AVP 99
  
  b=AS:50000
  
  a=framerate:25
  
  a=x-dimensions:1280,720
  
  a=x-vendor-id:ubnt,a521
  
  a=x-rtp-ts:4617405454576779984
  
  a=rtpmap:99 H264/90000
  
  a=fmtp:99 profile-level-id=42A01E;packetization-mode=1;sprop-parameter-sets=Z0IAKOkAoAt1xIAG3dAAzf5gDYgQlA==,aM4xUg==
  
  a=control:trackID=0
  
  
  
  Created receiver for "video/H264" subsession (client ports 63346-63347)
  
  Sending request: SETUP rtsp://61.218.52.250:554/live/ch00_0/trackID=0 RTSP/1.0
  
  CSeq: 4
  
  User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
  
  Transport: RTP/AVP;unicast;client_port=63346-63347
  
  
  
  
  
  Received 47 new bytes of response data.
  
  Received a complete SETUP response:
  
  RTSP/1.0 461 Unsupported Transport
  
  CSeq: 4
  
  
  
  
  
  Failed to setup "video/H264" subsession: 461 Unsupported Transport

  After searching around I found it seems Android still not support RTSP over TCP :

  When streaming to an Android device using RTSP/RTP, the RTP portion
  must flow over UDP. Android doesn’t support RTSP/RTP interleaved (RTP
  over TCP). This means that if UDP is unavailable for RTP playback, RTP
  over TCP won’t work as a failover and your stream won’t play.

  Considering it’s posted on 2010, does Android 4.x support RTSP over TCP now ? I’ve found lots of post asking for how to force transfer via TCP other than UDP. I guess it’s not.

  If not, could I achieve it by re-compiling and using ffmpeg library ?

  Basically I hope ffmpeg could help me to automatically switch to TCP while UDP not available.

• Connecting to RTSP stream via FFMpeg - 'could not find codec parameters for stream 0'

  14 novembre 2013, par user2992545

  I'm a beginner in the FFMpeg world, so please excuse me my overall level of knowledge and any mistakes.

  What I have here is a DVR, made by ITX Security. I have an SDK for it and currently I'm trying to connect to its RTSP using FFMPEG. I've been partially succesfull (i think), the best what I got was :

  `(...)bin>ffplay -user-agent "ITX Security" rtsp://ADMIN:1234@192.168.2.130:5554/live/
  
  
  
  [rtsp @ 02a242e0] UDP timeout, retrying with TCPB sq=0B f=0/0
  
  [rtsp @ 02a242e0] method PAUSE failed: 501 Not Implemented
  
  [rtsp @ 02a242e0] Could not find codec parameters for stream 0 (Video: h264):unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  rtsp://ADMIN:1234@192.168.2.130:5554/live/: could not find codec parameters
  
  
  
  nan:  0.000 fd=0 aq=    0KB vq=    0KB sq=    0B f=0/0`

  Is it really indicating that it has trouble in playing the stream (because it lacks a proper codec ?) - or am I just not getting the point ?

  I've captured traffic between my computer and the DVR in question, and something is happening (at least that's what Wireshark says).

  https://www.dropbox.com/s/j65lige244kg8jt/rtsp_ffmpeg.pcap

  What am I doing wrong ?

  Regards.