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• Does FFmpeg support Openmax IL HW decoder ?

  5 octobre 2017, par chang jc

  Dears :

  Does FFmpeg support Openmax IL HW decoder ?

  I have found & could use FFmpeg Openmax IL HW encoder which named omx.c.

  However, I did not find Openmax IL HW decoder implementation for FFmpeg ?

  Does there anyone know why ?

  Or someone has the experience to implement Openmax IL HW decoder for FFmpeg.

  Thanks in advance.

• aacenc_tns : rework TNS descision logic

  17 octobre 2015, par Rostislav Pehlivanov

  aacenc_tns : rework TNS descision logic
  Changes :
  
   - strongly prefer dual filters to a single filter
  
   - less strict about using 2 filters w.r.t. energy
  
   - scrap the usage of threshold and spread, useless
  
   - use odd-shaped windows to set the filter direction
  
   - use 4 bits instead of 3 bits for short windows
  
   - simplify and reduce the main loop to a single level
  
   - add stricter regulations for short windows
  All of this now makes the TNS implementation operate
  
  as good as it can and it definitely shows. The frequency
  
  thresholds are now even better defined by looking at
  
  the spectrals and the overall sound has been improved at
  
  the price of just a few bits that are well worth it.
  

  • [DH] libavcodec/aacenc_tns.c
  • [DH] libavcodec/aacenc_tns.h

• How To Install FFMPEG on Elastic Beanstalk

  26 mars 2020, par Nick Lynch

  This is not a duplicate, I have found one thread, and it is outdated and does not work :
  Install ffmpeg on elastic beanstalk using ebextensions config.

  I have been trying to install this for some time, nothing seems to work.
  Please share the config.yml that will make this work.

  I am using 64bit Amazon Linux 2016.03 v2.1.6 running PHP 7.0 on Elastic Beanstalk

  ---

  My current file is

  branch-defaults: 
  
    default: 
  
      environment: Default-Environment
  
    master: 
  
      environment: Default-Environment
  
  global: 
  
    application_name: "My First Elastic Beanstalk Application"
  
    default_ec2_keyname: ~
  
    default_platform: "64bit Amazon Linux 2016.03 v2.1.6 running PHP 7.0"
  
    default_region: us-east-1
  
    profile: eb-cli
  
    sc: git
  
  packages: ~
  
  yum: 
  
    ImageMagick: []
  
    ImageMagick-devel: []
  
    commands: 
  
      01-wget: 
  
        command: "wget -O /tmp/ffmpeg.tar.gz http://ffmpeg.gusari.org/static/64bit/ffmpeg.static.64bit.2014-03-05.tar.gz"
  
      02-mkdir: 
  
        command: "if [ ! -d /opt/ffmpeg ] ; then mkdir -p /opt/ffmpeg; fi"
  
      03-tar: 
  
        command: "tar -xzf ffmpeg.tar.gz -C /opt/ffmpeg"
  
        cwd: /tmp
  
      04-ln: 
  
        command: "if [[ ! -f /usr/bin/ffmpeg ]] ; then ln -s /opt/ffmpeg/ffmpeg /usr/bin/ffmpeg; fi"
  
      05-ln: 
  
        command: "if [[ ! -f /usr/bin/ffprobe ]] ; then ln -s /opt/ffmpeg/ffprobe /usr/bin/ffprobe; fi"
  
      06-pecl: 
  
        command: "if [ `pecl list | grep imagick` ] ; then pecl install -f imagick; fi"