Recherche avancée

Sur d’autres sites (12007)

• ffmpeg silence detect not properly working

  6 septembre 2014, par Zahlii

  I am trying to use the following command with the latest ffmpeg build to remove silence from my .mp3 files :

  ffmpeg -i SILENCE.mp3 -af silencedetect=n=-50dB:d=1 -y -ab 192k  SILENCE_OUT.mp3

  However, the following output is produced :

  ffmpeg version N-66154-g1654ca7 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Sep  5 2014 22:10:38 with gcc 4.8.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
  
  enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
  
  modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
  
  b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
  
  r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
  
  able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
  
   --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
  
  libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
  
    libavutil      54.  7.100 / 54.  7.100
  
    libavcodec     56.  1.100 / 56.  1.100
  
    libavformat    56.  4.100 / 56.  4.100
  
    libavdevice    56.  0.100 / 56.  0.100
  
    libavfilter     5.  1.100 /  5.  1.100
  
    libswscale      3.  0.100 /  3.  0.100
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  0.100 / 53.  0.100
  
  Input #0, mp3, from 'SILENCE.mp3':
  
    Metadata:
  
      title           : Snowblind (Featuring Tasha Baxter)
  
      artist          : Au5
  
      album           : Snowblind (Featuring Tasha Baxter)
  
      genre           : Electronica
  
      performer       : Au5
  
      track           : 1/1
  
      date            : 2014
  
      album_artist    : Au5,Tasha Baxter
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      encoder         : Lavf55.42.100
  
    Duration: 00:05:50.80, start: 0.025057, bitrate: 192 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
  
  Output #0, mp3, to 'SILENCE_OUT.mp3':
  
    Metadata:
  
      TIT2            : Snowblind (Featuring Tasha Baxter)
  
      TPE1            : Au5
  
      TALB            : Snowblind (Featuring Tasha Baxter)
  
      TCON            : Electronica
  
      TPE3            : Au5
  
      TRCK            : 1/1
  
      TDRL            : 2014
  
      TPE2            : Au5,Tasha Baxter
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      TSSE            : Lavf56.4.100
  
      Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p, 192 kb/s
  
      Metadata:
  
        encoder         : Lavc56.1.100 libmp3lame
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame))
  
  Press [q] to stop, [?] for help
  
  [silencedetect @ 0000000004398f40] silence_start: -0.00628118
  
  [silencedetect @ 0000000004398f40] silence_end: 3.21413 | silence_duration: 3.22
  
  041
  
  [silencedetect @ 0000000004398f40] silence_start: 343.844
  
  [libmp3lame @ 00000000043b2940] Trying to remove 1152 samples, but the queue is
  
  empty
  
  size=    8223kB time=00:05:50.79 bitrate= 192.0kbits/s
  
  video:0kB audio:8222kB subtitle:0kB other streams:0kB global headers:0kB muxing
  
  overhead: 0.011485%

  The generated audio file however still has the original length without any silence removed.
  See the following images :
  http://prntscr.com/4k52m5

  Any help is appreciated !

• Piwik and Piwik PRO featured in TrustRadius buyer’s guide

  3 septembre 2014, par Piwik Core Team — About, Meta

  We are proud that Piwik and Piwik PRO are being featured in the TrustRadius Buyer’s Guide to Digital Analytics Software and scooping up two awards :

  

  Piwik Named A Leader in TrustRadius Digital Analytics TrustMap™ for Small Businesses.

  Piwik Rated Strong Performer in TrustRadius Digital Analytics TrustMap ™ for Enterprise.

  Rankings Based on User Ratings and Market Segment Adoption

  Learn more

  The TrustRadius TrustMaps™ guide features reviews from authenticated TrustRadius users on a number of digital analytics platforms from the biggest names in the digital analytics industry – Piwik and Piwik PRO being two of them. You can download your free copy of the buyer’s guide here (Note : there is a form to fill before you can download the PDF).

  Read the TrustRadius user reviews about Piwik on their website.

  Or view other awards won by Piwik here.

• FFMPEG on Android with libmp3lame

  2 septembre 2014, par M4tho

  I’ build an app for android to convert videos to audio.
  Im using ffmpeg for the process. (Im using the precompiled version from here)

  At the moment its only possible to convert to *.wav and not to *.mp3.

  So im asking u if anybody can provide me a compiled version supporting the libmp3lame-library ?

  Or can anybody explane to me how to compile it myself.
  Ive tried to, but im getting some errors all the time and i dont know how to handle them.

  Ive tried to compile it myself with this setup :

  • Ubuntu x64
  • Android NDK-r10
  • ffmpeg SourceCode from Feb-02-2014
  • libmp3lame-dev

  following this tutorial
  of course ive added
  —enable-libmp3lame to the ./configuration

  thanks anyways
  and sorry for the bad english