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Personal Cloud Recordings

An exercise of an implementation of personal cloud recordings. Recording the streaming from Surveillance Camera via 4G LTE Cellular Network.

Requirements

Hardware

  • Platform: MT7688 Target Board
  • Webcam: Logitech C270 UVC Webcam
  • Cellular: 4G LTE Modem
  • Target Device:

r

Software

Cloud Host

  • ffmpeg

Target Device

  • mjpg_streamer in an OpenWRT Linux OS

Background

Topology

 ---------------------------------
/ Cloud Server (running ffmpeg)  /
---------------------------------
       /  Cloud Host: [2001:19f0:7001:111a:5400:1ff:fe5c:4f86]
      /_____
           /
          .-~~~-.
  .- ~ ~-(       )_ _
 /                     ~ -.
|         4G LTE NW         \
 \                         .'
   ~- . _____________ . -~
      /
    /  Target Device: http://[2001:b400:e25b:d8b6:26c:ac02:cccd:6e8f]:8080/?action=stream
 ----------------------------------
/ IP CAMs (running mjpg-streamer) /
----------------------------------

Running

IPCam Side

  • Issue mjpg_streamer command and to enable streaming service
# mjpg_streamer -i "/usr/lib/input_uvc.so -d /dev/video0 " -o "/usr/lib/output_http.so -w /www/webcam -p 8080"
MJPG Streamer Version.: 2.0
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 640 x 480
 i: Frames Per Second.: not limited
 i: Format............: JPEG
 i: TV-Norm...........: DEFAULT
 o: www-folder-path...: /www/webcam/
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

Cloud Server Side

  • Install required packages
# apt-get install ffmpeg
# apt-get install iftop    # (Optional)
  • Issue ffmpeg command and point out the IPcam address, system will record the streaming.
# ffmpeg -f mjpeg -r 5 -i "http://[2001:b400:e25b:d8b6:26c:ac02:cccd:6e8f]:8080/?action=stream" -r 5 ./video.avi

  ffmpeg version 3.2.10-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
    built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
    configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    libavutil      55. 34.101 / 55. 34.101
    libavcodec     57. 64.101 / 57. 64.101
    libavformat    57. 56.101 / 57. 56.101
    libavdevice    57.  1.100 / 57.  1.100
    libavfilter     6. 65.100 /  6. 65.100
    libavresample   3.  1.  0 /  3.  1.  0
    libswscale      4.  2.100 /  4.  2.100
    libswresample   2.  3.100 /  2.  3.100
    libpostproc    54.  1.100 / 54.  1.100
  Input #0, mjpeg, from 'http://[2001:b400:e25b:d8b6:26c:ac02:cccd:6e8f]:8080/?action=stream':
    Duration: N/A, bitrate: N/A
      Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 5 tbr, 1200k tbn, 5 tbc
  [swscaler @ 0x5636a0d10480] deprecated pixel format used, make sure you did set range correctly
  Output #0, avi, to './video1.avi':
  • To force the frame rate of the input file (valid for raw formats only) to 5 fps and the frame rate of the output file to 5 fps:
  • - i: filename, input file name
  • - b: bitrate, Set the video bitrate in bit/s (default = 200 kb/s).
  • - vcodec: codec, Force video codec to codec. Use the "copy" special value to tell that the raw codec data must be copied as is.
  • - r: fps, Set frame rate (Hz value, fraction or abbreviation), (default = 25).
  • - y: Overwrite output files.

for more detail, please check the man page

Observation

Data Usage (iftop) on Cloud Recording Server

  • Package Observation of iftop r

  • Observation of ffmpeg r

  • Observation of CPU Usage for VPS, it's around 5% r

  • Observation of Disk Operations for VPS r

  • Observation of Network Usage for VPS r

  • Observation of Price for renting the Cloud Server

  • TBD

Advanced

OnViF

Fail-Safe

  • The Fail-Safe by SMS

Natted

  • For IPv4 Cellular Network (Natted or NAT’d), we can do so via VPN (Virtual Private Server) Network.

Network Remote Management

  • Network Management Server can monitor the Package usages of Cloud Server and IP CAMs.
  • If there is any Device which is not working then Supervisor can perform the Fail-Safe (Redundancy) actions
  • There is the Recommendation Topology (Ideally) in this case.
 ---------------------------------------------
/       Network Management Server (NMS)       /
---------------------------------------------
            /              /  NMS: to Monitor Cloud Server and IPCam's actions
           /              /
          /              /
         /   --------------------------------
        /   / Cloud Server (running ffmpeg) /
       /    --------------------------------
      /                /  Cloud: [2001:19f0:7001:111a:5400:1ff:fe5c:4f86]
     /                /
    /                /  IPCam: http://[2001:b400:e25b:d8b6:26c:ac02:cccd:6e8f]:8080/?action=stream
 ------------------------------------------
/      IP CAMs (running mjpg-streamer)     /
-------------------------------------------

PlayBack

  • Possible to Playback/Play on the WebUI/Screen (2x2 by Bootstrap) 
    <html>
  <head>
    <title>MJPG-Streamer - Stream Example</title>
  </head>
  <body>
    <center>
      <img src="http://[2001:b011:200b:120c:2e0:4cff:fe00:e1b]:8080/?action=stream" />
    </center>
   </body>
</html>

Recognition

  • Export to JPG file pre second man 

    # ffmpeg -i stream.mp4 -vf fps=1 out%02d.jpg

  • Delect the duplication

  • Inmport to Application (LPR or Face recognition)

Warpped

Reference