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• configure : Add missing dxva2 dependency for dxva2_lib

  11 décembre 2016, par Diego Biurrun

  configure: Add missing dxva2 dependency for dxva2_lib
  

  • [DBH] configure

• hevc : ppc : Add HEVC 4x4 IDCT for PowerPC

  11 décembre 2016, par Alexandra Hajkova

  hevc: ppc: Add HEVC 4x4 IDCT for PowerPC
  
  Signed-off-by: Diego Biurrun <diego@biurrun.de>
  

  • [DBH] libavcodec/hevcdsp.c
  • [DBH] libavcodec/hevcdsp.h
  • [DBH] libavcodec/ppc/Makefile
  • [DBH] libavcodec/ppc/hevcdsp.c
  • [DBH] libavcodec/ppc/hevcdsp_template.c

• configure : Fix _libs vs. _extralibs oversight

  10 décembre 2016, par Diego Biurrun

  configure: Fix _libs vs. _extralibs oversight
  

  • [DBH] configure

• pthread_frame : use better memory orders for frame progress

  9 décembre 2016, par Wan-Teh Chang

  pthread_frame: use better memory orders for frame progress
  
  This improves commit 59c70227405c214b29971e6272f3a3ff6fcce3d0.
  
  In ff_thread_report_progress(), the fast code path can load
  progress[field] with the relaxed memory order, and the slow code path
  can store progress[field] with the release memory order. These changes
  are mainly intended to avoid confusion when one inspects the source code.
  They are unlikely to have measurable performance improvement.
  
  ff_thread_report_progress() and ff_thread_await_progress() form a pair.
  ff_thread_await_progress() reads progress[field] with the acquire memory
  order (in the fast code path). Therefore, one expects to see
  ff_thread_report_progress() write progress[field] with the matching
  release memory order.
  
  In the fast code path in ff_thread_report_progress(), the atomic load of
  progress[field] doesn't need the acquire memory order because the
  calling thread is trying to make the data it just decoded visible to the
  other threads, rather than trying to read the data decoded by other
  threads.
  
  In ff_thread_get_buffer(), initialize progress[0] and progress[1] using
  atomic_init().
  
  Signed-off-by: Wan-Teh Chang <wtc@google.com>
  Signed-off-by: Anton Khirnov <anton@khirnov.net>
  

  • [DBH] libavcodec/pthread_frame.c

• build : Add -D_XOPEN_SOURCE=600 to CPPFLAGS on Cygwin

  9 décembre 2016, par Diego Biurrun

  build: Add -D_XOPEN_SOURCE=600 to CPPFLAGS on Cygwin
  
  This is required to make certain math defines visible on modern Cygwin.
  

  • [DBH] configure