git.libav.org Git - libav.git/rss log

Les articles publiés sur le site

• avprobe : Support printing strings with empty keys

  4 avril 2018, par Vittorio Giovara

  avprobe: Support printing strings with empty keys
  

  • [DBH] avtools/avprobe.c

• lavf/qsvvpp : bypass vpp if not needed.

  4 avril 2018, par Zhong Li

  lavf/qsvvpp: bypass vpp if not needed.
  
  Currently vpp pipeline is always created, even for the unnecessary
  cases such as setting the option "vpp_qsv=w=1280:h=720" for an input
  with native resolution 1280x720. Thus introduces unnecessary performance
  dropping, so bypass vpp if not needed.
  
  Signed-off-by: Zhong Li <zhong.li@intel.com>
  Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] libavfilter/vf_vpp_qsv.c

• lavc/qsvdec : expose frame pic_type and key_frame

  4 avril 2018, par Zhong Li

  lavc/qsvdec: expose frame pic_type and key_frame
  
  Currently pict_type and key_frame are unset.
  Add an extra param to fetch the picture type from qsv decoder
  
  The judgement “key frame is equal to IDR frame” only suitable for H264.
  For HEVC, all IRAP frames are key frames, and other codecs have no IDR
  frame.
  
  Signed-off-by: ChaoX A Liu <chaox.a.liu@intel.com>
  Signed-off-by: Zhong Li <zhong.li@intel.com>
  Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] libavcodec/qsv.c
  • [DBH] libavcodec/qsv_internal.h
  • [DBH] libavcodec/qsvdec.c

• random_seed : use bcrypt instead of the old wincrypt API

  3 avril 2018, par Steve Lhomme

  random_seed: use bcrypt instead of the old wincrypt API
  
  Remove the wincrypt API calls since we don't support XP anymore and
  bcrypt is available since Vista, even on Windows Store builds.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] configure
  • [DBH] libavutil/random_seed.c

• qsv : adding Multi Frame Encode support

  2 avril 2018, par Maxym Dmytrychenko

  qsv: adding Multi Frame Encode support
  
  Starting from API 1.25 helps to improve performance of the simultaneous
  encode, 1:N scenario, like:
  
  ./avconv  -y -hwaccel qsv -c:v h264_qsv -r 30000/1001 -i
  ~/bbb_sunflower_1080p_60fps_normal.mp4  -vframes 600 -an \
      -filter_complex "split=2[s1][s2]; [s1]scale_qsv=1280:720[o1];
  [s2]scale_qsv=960:540[o2]" \
      -map [o1] -c:v h264_qsv -b:v 3200k -minrate 3200k -maxrate 3200k -f
  rawvideo /tmp/3200a.264 \
      -map [o2] -c:v h264_qsv -b:v 1750k -minrate 1750k -maxrate 1750k -f
  rawvideo /tmp/1750a.264
  
  Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] libavcodec/qsv.c
  • [DBH] libavcodec/qsv_internal.h
  • [DBH] libavcodec/qsvenc.c
  • [DBH] libavcodec/qsvenc.h
  • [DBH] libavcodec/qsvenc_h264.c
  • [DBH] libavfilter/qsvvpp.c
  • [DBH] libavfilter/qsvvpp.h
  • [DBH] libavfilter/vf_deinterlace_qsv.c
  • [DBH] libavfilter/vf_scale_qsv.c
  • [DBH] libavutil/hwcontext_qsv.c