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• dts to m4a (aac) ffmpeg to qaac output issue

  10 avril 2014, par user8979

  Looking to encode 2 dts 5.1 audio sources (Sonic Landscape and The Digital Experience) to m4a (aac) 5.1 with qaac 2.35. Input piped to qaac using :

  ffmpeg -report -loglevel verbose -i "input.file" -vn -f wav -codec:a pcm_f32le - | qaac --cvbr 160 --quality 2 --rate=keep --ignorelength --no-delay - -o "output.m4a"

  • Sonic Landscape duration : 18.848s, qaac output duration : 18.859s

    • output .m4a duration mismatch
    • mediainfo reports output is 2ch while mediatab and ffmpeg report output is 5.1ch (lfe)
      
      

  • The Digital Experience duration : 32.875s, qaac output duration : 32.875s

    • mediainfo reports output is 2ch while mediatab and ffmpeg report output is 5.1ch (lfe)
      
      

  1. what caused the duration mismatch in the first one ? how can it be fixed ?
  2. is the output 2ch or 5.1ch ?
     
     • if it is 2ch, what qaac option(s) leave the channels in output same as input ?
     • if the output is 5.1ch, does qaac then always preserve channels unless explicitly told otherwise ?

• libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90ac...

  3 mai 2014, par mplayer developers

  libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90acb93785b62fd8c5e5dae41)
  Authors from svn :
  
  cehoyos (2) :
  
        Support playback of JPEG 2000 digital cinema files.
  
        Add name for image format IMGFMT_440P.
  ib (1) :
  
        Get rid of VOCTRL_GUI_NOWINDOW.
  Matt Oliver (4) :
  
        Fix libmpcodecs inline asm on ICL.
  
        Use DECLARE_ALIGNED helper macros.
  
        Remove some superfluous commas from inline asm for better compatibility.
  
        Use numeric labels in inline asm for consistency and better     compatibility.
  reimar (10) :
  
        Fix bpp calculation for XYZ format.
  
        Avoid duplicating the mouse autohide code.
  
        Add NV12/NV21 support to some helper functions.
  
        Add support for rotating the video via OpenGL.
  
        Add options to determine where borders will be added when adjusting for aspect.
  
        Apply forgotten move of apply_border_pos function.
  
        Extract window creation code to common file.
  
        Make VDPAU support work again with latest FFmpeg.
  
        img_format : document why mp_get_chroma_shift does not work for NV12/NV21
  
        Minor spelling/grammar fixes.
  For detailed line by line authorship please see svn log of mplayer
  
  svn ://svn.mplayerhq.hu/mplayer/trunk
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavfilter/libmpcodecs/img_format.c
  • [DH] libavfilter/libmpcodecs/img_format.h
  • [DH] libavfilter/libmpcodecs/libvo/video_out.h
  • [DH] libavfilter/libmpcodecs/mp_image.c
  • [DH] libavfilter/libmpcodecs/vf_fspp.c
  • [DH] libavfilter/libmpcodecs/vf_ilpack.c
  • [DH] libavfilter/libmpcodecs/vf_pp7.c
  • [DH] libavfilter/libmpcodecs/vf_uspp.c

• Announcing Piwik Community Meetup in Munich : Register now !

  5 mai 2014, par Piwik Core Team

  We’re excited to announce our second Piwik community Meetup ! This will be a unique opportunity to connect with other Piwik users, and meet the core team behind Piwik.

  Updated : presentation slides

  The Making Of The Analytics Platform Of The Future

  Piwik in Enterprise

  Piwik Analytics Platform

  Guest lecture : TV to Web Analytics

  Guest lecture : Oxid analytics with Piwik

  When and where is the meetup ? (update, see below)

  Location : Munich, Germany
  Date : Tuesday July 29th 2014
  Time : 5PM
  Language : German/English
  Cost : Free !

  Register now !

  Who can join ?

  All Piwik community members (users, translators, contributors) are warmly invited to join the meetup. Almost all of the core team will be present, we’re looking forward to meeting you !

  What to expect for the Piwik meetup ?

  The meetup will consist of three speakers giving quick 15-20 minute presentations followed by Q&A.

  • Discover some of the upcoming features
  • Learn tricks to make the most out of Piwik
  • Networking and socialising… and an after party in a local bar to continue the discussion !

  Who can join the meetup ?

  This meetup is open to all Piwik users and members of the community.

  • If you are using Piwik to improve your websites and apps, or generally curious about digital analytics and marketing
  • If you are interested in the platform, integrating your app with Piwik or building plugins, come meet with other developers and creators of Piwik

  Timing

  • Doors open at 17:00
  • Starts at 17:30
  • Ends at 20:00 – 20:30

  Schedule

  • 17:30 – Welcome speech (Peter Boehlke (german))
  • 17:40 – Piwik for governments & corporations – Piwik PRO case study (Maciej Zawadziński english)
  • 18:05 – Break (25 minutes) – Coffee, Tea, pastries and cold buffet (free)
  • 18:30 – Overview of the platform Piwik, custom data tracking, publishing on the new Marketplace (Thomas Steur (german))
  • 18:55 – Break (10 minutes)
  • 19:05 – Piwik users present interesting real world use cases (german)
    – TV-to-Web analytics (Jasper Sasse)
    – Piwik from a SEO’s perspective (Thomas Zeithaml)
    – Using the Piwik Framework to analyze Shop-Data (Joachim Barthel)
  • 19:30 – Break (10 minutes)
  • 19:40 – Next big features, milestones, future roadmap (Matthieu Aubry english)
  • 20:05 – Break (5 minutes)
  • 20:10 – Summary & end of the conference (german)
  • After party at a nearby bar or restaurant (open end)

  Call for Papers

  We would like to hear about how you use Piwik ! If you’d like to present your interesting use case on the conference (speaking time 5 to 7 minutes), please contact us at hello@piwik.org !

  Meetup location

  Munich Workstyle
  Landwehrstraße 61
  80336 München
  Location / Directions

  Parking space is limited : We recommend to use public transport !
  Stations nearby :
  
   S-Bahn : Hauptbahnhof, Stachus (both 700m)
  
   U-Bahn : Stachus (700m), Theresienwiese (400m)

  Beverage pricing
  
   Mineral water : EUR 3,10 (0,75l)
  
   Softdrinks / juices : EUR 2,10
  
   Beer : EUR 2,80

  

  A special thank you to our sponsor Mayflower GmbH !
  
  
  

  Register now

  Seats are limited, please register today to secure your seat :
  Register now !