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• libavfilter/vf_vpp : Add common filters of the qsv vpp

  24 août 2017, par Huang, Zhengxu

  libavfilter/vf_vpp: Add common filters of the qsv vpp
  
  Add common filters of the qsv vpp features including scale,denosie,
  deinterlace,frc,crop and procAmp.
  
  Performance will be significantly reduced in the test if using cascade
  mode just like qsv framerate + qsv scale + qsv deinterlace + qsv denoise in
  separated way no matter in system or video memmory cases.
  And the code is so redundant because so much the same just as session and
  surface's creation and management.
  So we add a common qsv filter.
  
  Usage:
  -hwaccel qsv -c:v h264_qsv -r 25 -i in -vf
  vpp_qsv=w=iw/2:h=400:deinterlace=1:framerate=60:detail=50:denoise=50
  -b 2M -maxrate 3M -c:v h264_qsv -y out.h264
  
  Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
  Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
  Signed-off-by: Andrew Zhang <huazh407@gmail.com>
  Change-Id: I130392ce722138c209ab658c5f03f0009b6e8024
  Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] configure
  • [DBH] libavfilter/Makefile
  • [DBH] libavfilter/allfilters.c
  • [DBH] libavfilter/vf_vpp_qsv.c

• vaapi_encode : Allocate slice structures and parameter buffers dynamically

  24 août 2017, par Jun Zhao

  vaapi_encode: Allocate slice structures and parameter buffers dynamically
  
  This removes the arbitrary limit on the allowed number of slices and
  parameter buffers.
  
  From ffmpeg commit e4a6eb70f471eda36592078e8fa1bad87fc9df73.
  
  Signed-off-by: Mark Thompson <sw@jkqxz.net>
  

  • [DBH] libavcodec/vaapi_encode.c
  • [DBH] libavcodec/vaapi_encode.h

• yadif : Account for the buffer alignment while processing the frame edges

  21 août 2017, par Michael Niedermayer

  yadif: Account for the buffer alignment while processing the frame edges
  
  Avoid out of bound reads.
  
  Bug-Id: 1031
  CC: libav-stable@libav.org
  Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
  

  • [DBH] libavfilter/vf_yadif.c

• h264_metadata : Fix double-free

  20 août 2017, par Mark Thompson

  h264_metadata: Fix double-free
  
  Whether the udu string should be freed depends on whether the SEI it
  gets added to was created internally by cbs or externally by the bsf.
  The current code frees it twice in the former case.
  

  • [DBH] libavcodec/h264_metadata_bsf.c

• libavfilter/overlay_qsv : Add QSV overlay vpp filter

  18 août 2017, par Huang, Zhengxu

  libavfilter/overlay_qsv: Add QSV overlay vpp filter
  
  The filter supports two inputs and (implicitly) scaling the second input
  during composition, unlike the software overlay.
  
  The code has been separated into common interface and qsv overlay
  implementation. The common part mainly creates the qsv session and
  manages the surface which is nearly the same for all qsv filters.
  So the qsvvpp.c/qsvvpp.h API can be used by other QSV vpp filters
  to reduce code redundancy.
  
  Usage:
   -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
   -i in.h264 -filter_complex
   "overlay_qsv=eof_action=repeat:x=(W-w)/2:y=(H-h)/2"  -b 2M -maxrate 3M
   -c:v h264_qsv -y out.h264
  
  Two inputs should have different sizes otherwise one will be completely
  covered or you need to scale the second input as follows:
    -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
    -i in.h264 -filter_complex
    "overlay_qsv=w=720:h=576:x=(W-w)/2:y=(H-h)/2" -b 2M -maxrate 3M -c:v
    h264_qsv -y out.h264
  
    Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
    Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
    Signed-off-by: Andrew Zhang <huazh407@gmail.com>
    Change-Id: I5c381febb0af6e2f9622c54ba00490ab99d48297
    Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] Changelog
  • [DBH] configure
  • [DBH] libavfilter/Makefile
  • [DBH] libavfilter/allfilters.c
  • [DBH] libavfilter/qsvvpp.c
  • [DBH] libavfilter/qsvvpp.h
  • [DBH] libavfilter/vf_overlay_qsv.c