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• avformat/hls, dashdec : Don't use AV_OPT flags in av_dict_set()

  15 mai 2022, par Andreas Rheinhardt

  avformat/hls, dashdec : Don't use AV_OPT flags in av_dict_set()
  av_dict_set() expects a different set of flags, namely the AV_DICT_*
  
  flags. Using AV_OPT_FLAG_DECODING_PARAM (or any AV_OPT_FLAG_*) ic
  
  av_dict_set() is therefore completely wrong and given that av_dict_set()
  
  just doesn't care about whether the string it receives has anything
  
  to do with a decoding parameter or not, it should just be removed
  
  without replacement.
  
  (The numerical value of AV_OPT_FLAG_DECODING_PARAM currently coincides
  
  with AV_DICT_IGNORE_SUFFIX. Given that the dictionaries we are dealing
  
  with here are always empty (i.e. NULL) before the calls to
  
  av_dict_set(), this flag changes nothing. It would be different if
  
  it were equal to one of the AV_DICT_DONT_STRDUP_* values.)
  Reviewed-by : Jan Ekström <jeebjp@gmail.com>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavformat/dashdec.c
  • [DH] libavformat/hls.c

• Docker build dependent on host Ubuntu version not on the actual Docker File

  26 mars 2021, par user8912375

  I'm facing an issue with my docker build.

  


  I have a dockerfile as follow :

  


  FROM python:3.6


RUN apt-get update && apt-get install -y libav-tools 
....


  


  The issue I'm facing is that I'm getting this error when building on ubuntu:20.04 LTS

  


  E: Package 'libav-tools' has no installation candidate


  


  I made some research and found out that ffmpeg should be a replacement for libav-tools

  


  FROM python:3.6


RUN apt-get update && apt-get install -y ffmpeg 
....


  


  I tried again without any issue.

  


  but when I tried to build the same image with ffmpeg on ubuntu:16.04 xenial I'm getting a message that

  


  E: Package 'ffmpeg' has no installation candidate


  


  after that, I replace the ffmpeg with libav-tools and it worked on ubuntu:16.04

  


  I'm confused now why docker build is dependant on the host ubuntu version that I'm using and not the actual dockerfile.

  


  shouldn't docker build be coherent whatever the ubuntu version I'm using.

  


• id3v2 : prefer TDRC for date over TDRL.

  4 novembre 2014, par Benoit Fouet

  id3v2 : prefer TDRC for date over TDRL.
  TDRL is what we used as a replacement of TYER, and, according to
  
  http://id3.org/id3v2.4.0-changes :
  
      TYER - Year
  
          This frame is replaced by the TDRC frame, ’Recording time’
  
          [F:4.2.5].
  
  So change TDRL usages to TDRC.
  Fixes ticket #3694
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/id3v2.c
  • [DH] libavformat/mp3enc.c