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• aacenc : remove ANMR coder

  8 février, par Lynne

  aacenc : remove ANMR coder
  If there's ever a rework of the AAC encoder, it won't start from here.
  
  The codec, with all its oddities and tweaks needed to acheive good quality
  
  has strayed far from the academic work upon which this coder was based on.
  
  Its been 20 years since this paper was released, and no known existing
  
  implementations, open-source or proprietary that we know of, are based on it.
  

  • [DH] libavcodec/aaccoder.c
  • [DH] libavcodec/aacenc.c
  • [DH] libavcodec/aacenc.h

• configure : Include quotes around pkg_version

  16 décembre 2024, par Joe Schiffler

  configure : Include quotes around pkg_version
  In some MSYS environments it can happen that the 3 argument syntax
  
  for pkg-config library specifications fails because somehow the
  
  expansion of pkg_version ends up with a redirection we guess.
  To avoid failures like in the referenced build[2], we quote it
  
  so the whole module including operators will be expanded into
  
  a single shell word and the single argument syntax for specifying
  
  the library for pkg-config will be used.
  The single argument syntax seems to be supported by the original
  
  pkg-config from the beginning more than 20 years[3].
  In the pkgconf implementation single argument syntax was supported
  
  pretty much from the beginning as well. The multiple argument syntax
  
  we used until this change, was not supported until a change[4] more
  
  than 10 years ago.
  References
  
  1. Build passing with quotes :
  
     https://github.com/JoeSchiff/pyav-ffmpeg/actions/runs/12358403929
  
  2. Build failing without quotes :
  
     https://github.com/JoeSchiff/pyav-ffmpeg/actions/runs/12360472377
  
  3. Earliest commit of the current pkg-config Git repo already mentions the single argument syntax :
  
     https://gitlab.freedesktop.org/pkg-config/pkg-config/-/commit/2ac96cbcc708d8945329fd1b2001386e1c895c64#124c0becfe68b1ef671f49ed2b9d24779ace126f_0_162
  
  4. pkgconf gets support for 3 argument syntax (pkgconf —exists liba = 1.2.3) :
  
     https://github.com/pkgconf/pkgconf/commit/793de6a06ca52fbfe906a269b5f2b2ba41739517
  Commit-message-by : Alexander Strasser <eclipse7@gmx.net>
  
  Signed-off-by : Joe Schiffler <joeschiffler3@gmail.com>
  
  Signed-off-by : Alexander Strasser <eclipse7@gmx.net>
  

  • [DH] configure

• ffmpeg ignores input svg files resolution and produces 100x100 video [closed]

  11 novembre 2024, par Francesco Potortì

  I have used this command for some years to produce .ogg files (or any other format) from a series of .svg files on Linux :

  


  ffmpeg -y -r 1.2 -i %06d.svg -qscale:v 10 path.ogg

  


  It has worked flawlessly until now, when it produces a video with 100x100 resolution, rather then the 1920x1080 resolution of the input files.

  


  If I force the output resolution to be 1920x1080 using the -s option, the resulting video is a magnified version of the 100x100 video output I obtain without the -s option. If I convert the svg files to png using inkscape everything is well, but I'd like to avoid making my workflow more complex.

  


  Here you can find some of the .svg files.

  


  Any ideas ?