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Les articles publiés sur le site

• dxva : add declarative profile checks

  22 juin 2017, par wm4

  dxva: add declarative profile checks
  
  Make supported codec profiles part of each dxva_modes entry. Every DXVA2
  mode is representative for a codec with a subset of supported profiles,
  so reflecting that in dxva_modes seems appropriate.
  
  In practice, this will more strictly check MPEG2 profiles, will stop
  relying on the surface format checks for selecting the correct HEVC
  profile, and remove the verbose messages for mismatching H264/HEVC
  profiles. Instead of the latter, it will now print the more nebulous "No
  decoder device for codec found" verbose message.
  
  This also respects AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH. Move the
  Main10 HEVC entry before the normal one to make this work better.
  
  Originally inspired by VLC's code.
  
  Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
  

  • [DBH] libavcodec/dxva2.c

• configure : Automatically add -isysroot for darwin if —sysroot is specified

  21 juin 2017, par Martin Storsjö

  configure: Automatically add -isysroot for darwin if --sysroot is specified
  
  Check the existing flags in the cc/cflags/cppflags/ldflags for
  occurrances of -isysroot; if none is found but --sysroot was specified,
  set -isysroot to the same value as --sysroot.
  
  This simplifies configuring cross-builds for iOS, if the global
  environment variable SDKROOT isn't set.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] configure

• build : Add an option for passing linker flags to the shared library build

  20 juin 2017, par Janne Grunau

  build: Add an option for passing linker flags to the shared library build
  
  Also employ this mechanism to pass $libdir to the runtime library search
  path if rpath is enabled. This fixes underlinking of some test binaries
  on some systems.
  

  • [DBH] avbuild/library.mak
  • [DBH] configure

• movenc : move tags definitions to where they are used

  19 juin 2017, par John Stebbins

  movenc: move tags definitions to where they are used
  

  • [DBH] libavformat/movenc.c

• movenc : simplify codec_tag lookup

  19 juin 2017, par John Stebbins

  movenc: simplify codec_tag lookup
  
  mux.c init_muxer() already sets codec_tag correctly in the cases
  simplified here.
  
  This also adds the capability to support alternative tags for the
  same codec_id.
  

  • [DBH] libavformat/movenc.c