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Les articles publiés sur le site

• alac : do not return success if nothing was decoded

  14 août 2016, par Anton Khirnov

  alac: do not return success if nothing was decoded
  
  If we encounter an END element before anything is decoded, we would
  return success even though the output frame has not been allocated,
  which is invalid.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/alac.c

• vmnc : check that subrectangles fit into their containing rectangles

  14 août 2016, par Anton Khirnov

  vmnc: check that subrectangles fit into their containing rectangles
  
  Fixes possible invalid writes with corrupted files.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/vmnc.c

• Prepare for 12_alpha1 Release

  12 août 2016, par Sean McGovern

  Prepare for 12_alpha1 Release
  

  • [DBH] RELEASE

• hwcontext_qsv : transfer data through the child context when VPP fails

  10 août 2016, par Anton Khirnov

  hwcontext_qsv: transfer data through the child context when VPP fails
  
  Uploading/downloading data through VPP may not work for some formats, in
  that case we can still try to call av_hwframe_transfer_data() on the
  child context.
  
  Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>
  

  • [DBH] libavutil/hwcontext_qsv.c

• hwcontext_qsv : add support for the P8 format

  10 août 2016, par Anton Khirnov

  hwcontext_qsv: add support for the P8 format
  
  When using GPU surfaces with QSV, one needs to supply a frame allocator,
  which will be invoked to pass surface pools to libmfx.
  For encoding, this allocator gets invoked not only for the pool of input
  frames, but also for a separate pool of (apparently) reconstructed frames
  and another pool of MFX_FOURCC_P8, which on Windows needs to return
  D3DFMT_P8 D3D surfaces. Those are probably used to store the encoded
  bitstream on the GPU.
  
  Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>
  

  • [DBH] libavutil/hwcontext_qsv.c