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• Still on Piwik 2 ? Update now to Piwik 3, the most efficient and secure Piwik version

  5 avril 2017, par Piwik Core Team — Community

  It has been almost four months since we released Piwik 3. The major new release came with a new UI, performance and security improvements. If you are still on Piwik 2, the security improvements alone should be worth updating your Piwik now to Piwik 3. We cannot recommend this enough.

  Since the Piwik 3.0 release we have released three new versions that fix over 250 issues including more performance and security issues. And new features : the Life Time Revenue, or the Cross Domain linking feature to track visitors across different domains accurately. Also, most plugins from the Piwik Marketplace are now compatible with Piwik 3 so there is no reason to wait anymore.

  The update to Piwik 3 should be smooth, but may take a while depending on the amount of data you have. If you have any problem with the update, feel free to get in touch with us. At Piwik and at InnoCraft, the company of the makers of Piwik, we have successfully updated many Piwik installations.

  

  Wondering what’s changed ?

  • Piwik 3.0.0 Changelog
  • Piwik 3.0.1 Changelog
  • Piwik 3.0.2 Changelog
  • Piwik 3.0.3 Changelog
  • Piwik 3.0.4 Changelog

• VLC - Could someone assist me into improving latency in streaming to web based app ?

  19 janvier 2017, par zyeek

  I have been looking for solutions in which I can stream an IP camera’s stream to HTML 5. Currently as is it doesn’t support RTSP so easily.

  I am trying to be able to view the camera’s stream as live as possible. I was hoping someone could help me achieve that. I have been playing with it to get something workable, but at the moment I get a 5s delay stream. It is smooth, but wish to get it hopefully within <1-2s delay if possible.

  My current setup goes from taking my IP camera’s stream in RTSP and converting it to a webm and streaming it to a url, which then I plan on using that to put else where in a web app.

  ---

  What I would like to achieve

  Use a protocol that has low latency with audio was well. Webm was used as test, but I can’t seem to get other commands to get the proper stream to be going.

  I would like to use DASH, but from reading FFMPEG currently doesn’t support it. I was thinking maybe RTMP would be good enough for now, being both low latency and HTTP 5 compatible. I am just unable to figure out how to get FFMPEG to transcode the RTSP to RTMP.

  ---

  SETUP :

  I am using ffserver and ffmpeg. Overall scope : trying to pull IP camera stream and put it on a web app.

  Framework I am use is Meteor JS. So, I am trying to few plugins or outside complex setups as I want to be able to deploy this Meteor app on mobile devices as well. So, I want to stay within the boundaries of what HTML 5 can support.

  My current ffserver setup is ffserver.conf (this was taking from bunch of different place :

  HTTPPort 8090                      # Port to bind the server to
  
  HTTPBindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 10000             # Maximum bandwidth per client
  
                                 # set this high enough to exceed stream bitrate
  
  CustomLog -
  
  
  
  <feed>
  
       File /tmp/feed.ffm
  
       FileMaxSize 100K
  
       ACL allow 127.0.0.1
  
  </feed>
  
  
  
  
  
  <stream>
  
       Format webm
  
       Feed feed.ffm
  
       NoAudio
  
       VideoCodec libvpx
  
       VideoFrameRate 24
  
       VideoBitRate 1024
  
       VideoSize 480x270
  
       VideoBufferSize 1024
  
       AVOptionVideo flags +global_header
  
       StartSendOnKey
  
  </stream>
  
  
  
  <stream>            # Server status URL
  
     Format status
  
     # Only allow local people to get the status
  
     ACL allow localhost
  
  </stream>
  
  
  
  <redirect>    # Just an URL redirect for index
  
     # Redirect index.html to the appropriate site
  
     URL url/
  
  </redirect>

  Works normally :

  ffserver version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
  
    libavutil      55. 34.100 / 55. 34.100
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.100 / 57. 56.100
  
    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
  
  /etc/ffserver.conf:27: Setting default value for video bit rate tolerance = 256000. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:27: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:27: Setting default value for video max rate = 2048000. Use NoDefaults to disable it.
  
  Wed Jan 18 17:04:30 2017 FFserver started.

  Now I give life to the feed with ffmpeg. Command I use :

  ffmpeg -vsync 2 -i rtsp://admin:password@192.168.2.165:88/videoMain -map 0 http://localhost:8090/feed.ffm

  which gives the result :

  ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
  
    libavutil      55. 34.100 / 55. 34.100
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.100 / 57. 56.100
  
    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
  
  Guessed Channel Layout for Input Stream #0.1 : mono
  
  Input #0, rtsp, from 'rtsp://admin:password@192.168.2.165:88/videoMain':
  
    Metadata:
  
      title           : IP Camera Video
  
      comment         : videoMain
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 90k tbr, 90k tbn, 180k tbc
  
      Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
  
  [libvpx @ 0x7fd58184a600] v1.6.0
  
  Output #0, ffm, to 'http://localhost:8090/feed.ffm':
  
    Metadata:
  
      title           : IP Camera Video
  
      comment         : videoMain
  
      creation_time   : now
  
      encoder         : Lavf57.56.100
  
      Stream #0:0: Video: vp8 (libvpx), yuv420p, 480x270, q=-1--1, 1024 kb/s, 90k fps, 1000k tbn, 24 tbc
  
      Metadata:
  
        encoder         : Lavc57.64.101 libvpx
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 8388608 vbv_delay: -1
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
  
  Press [q] to stop, [?] for help
  
  [rtsp @ 0x7fd581000000] max delay reached. need to consume packet
  
  [rtsp @ 0x7fd581000000] RTP: missed 5 packets
  
  [h264 @ 0x7fd5818ae800] Increasing reorder buffer to 1
  
  frame=  139 fps= 18 q=0.0 Lsize=     440kB time=00:00:09.25 bitrate= 389.7kbits/s speed=1.19x    
  
  video:429kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.663893%

• Merge video with ffmpeg

  17 mars 2017, par Björn

  I have tried this command :
  ffmpeg -i 'concat:10.mov|11.mov' -codec copy out.mov
  The output file out.mov only shows whats in the first movie (10.mov).

  Been googling for several hours and tried lots of things but nothing works. I want this done without re-encoding the files. Just merge with the same codec

  ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
 built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
 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
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff678802600] Found duplicated MOOV Atom. Skipped it
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:10.mov|11.mov':
 Metadata:
   creation_time   : 2017-03-17T12:15:22.000000Z
   major_brand     : qt<br />
   minor_version   : 537134592
   compatible_brands: qt<br />
 Duration: 00:00:29.96, start: 0.000000, bitrate: 140810 kb/s
   Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720, 116735 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 5k tbn, 5k tbc (default)
   Metadata:
     handler_name    : Telestream Inc. Telestream Media Framework - Local 99.99.999999
     encoder         : Apple ProRes 422
Output #0, mov, to 'out.mov':
 Metadata:
   compatible_brands: qt<br />
   major_brand     : qt<br />
   minor_version   : 537134592
   encoder         : Lavf57.56.101
   Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 116735 kb/s, 50 fps, 50 tbr, 10k tbn, 5k tbc (default)
   Metadata:
     handler_name    : Telestream Inc. Telestream Media Framework - Local 99.99.999999
     encoder         : Apple ProRes 422
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 1498 fps=0.0 q=-1.0 Lsize=  426938kB time=00:00:29.94 bitrate=116815.8kbits/s speed=50.8x<br />
video:426930kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001997%

  Any ideas ? Would make my life very much easier if I got this to work :)