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• fate/matroska : Stop using unicode in command line paramters

  21 août 2023, par Martin Storsjö

  fate/matroska : Stop using unicode in command line paramters
  The fate-run.sh shell script exports LC_ALL=C before invoking the
  
  test executables ; this is probably done for consistency.
  When executing Windows binaries with Wine, it normally handles
  
  UTF-8 command line parameters just fine - but with LC_ALL set to
  
  C, it treats them as plain ASCII.
  As the unicode command line parameters wasn't the main thing
  
  being tested here, just convert them to plain ASCII, for
  
  portability. This fixes the test for all test configurations that
  
  use Wine.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] tests/fate/matroska.mak
  • [DH] tests/ref/fate/matroska-stereo_mode

• Revision 6f53eee531 : Code cleanup in vp9_onyx_if.c. Using clamp and MIN/MAX functions instead of pla

  2 avril 2013, par Dmitry Kovalev

  Changed Paths : Modify /vp9/encoder/vp9_onyx_if.c Code cleanup in vp9_onyx_if.c. Using clamp and MIN/MAX functions instead of plain C code. Lower case variable names. Removing redundant parenthesis. Change-Id : Ibf7cc5fbe4fbdb5029049a599af71534176e6f42

• libavutil : Add wchartoutf8(), wchartoansi(), utf8toansi(), getenv_utf8(), freeenv_utf...

  20 juin 2022, par Nil Admirari

  libavutil : Add wchartoutf8(), wchartoansi(), utf8toansi(), getenv_utf8(), freeenv_utf8() and getenv_dup()
  wchartoutf8() converts strings returned by WinAPI into UTF-8,
  
  which is FFmpeg's preffered encoding.
  Some external dependencies, such as AviSynth, are still
  
  not Unicode-enabled. utf8toansi() converts UTF-8 strings
  
  into ANSI in two steps : UTF-8 -> wchar_t -> ANSI.
  
  wchartoansi() is responsible for the second step of the conversion.
  
  Conversion in just one step is not supported by WinAPI.
  Since these character converting functions allocate the buffer
  
  of necessary size, they also facilitate the removal of MAX_PATH limit
  
  in places where fixed-size ANSI/WCHAR strings were used
  
  as filename buffers.
  On Windows, getenv_utf8() wraps _wgetenv() converting its input from
  
  and its output to UTF-8. Strings returned by getenv_utf8()
  
  must be freed by freeenv_utf8().
  On all other platforms getenv_utf8() is a wrapper around getenv(),
  
  and freeenv_utf8() is a no-op.
  The value returned by plain getenv() cannot be modified ;
  
  av_strdup() is usually used when modifications are required.
  
  However, on Windows, av_strdup() after getenv_utf8() leads to
  
  unnecessary allocation. getenv_dup() is introduced to avoid
  
  such an allocation. Value returned by getenv_dup() must be freed
  
  by av_free().
  Because of cleanup complexities, in places that only test the existence
  
  of an environment variable or compare its value with a string
  
  consisting entirely of ASCII characters, the use of plain getenv()
  
  is still preferred. (libavutil/log.c check_color_terminal()
  
  is an example of such a place.)
  Plain getenv() is also preffered in UNIX-only code,
  
  such as bktr.c, fbdev_common.c, oss.c in libavdevice
  
  or af_ladspa.c in libavfilter.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] configure
  • [DH] libavutil/getenv_utf8.h
  • [DH] libavutil/wchar_filename.h