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• avfilter/af_biquads : add option for block based linear phase processing

  8 mai 2022, par Paul B Mahol

  avfilter/af_biquads : add option for block based linear phase processing
  

  • [DH] doc/filters.texi
  • [DH] libavfilter/af_biquads.c

• avcodec : Add FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM to most h263 based codecs

  22 décembre 2016, par Michael Niedermayer

  avcodec : Add FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM to most h263 based codecs
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/flvdec.c
  • [DH] libavcodec/h263dec.c
  • [DH] libavcodec/intelh263dec.c
  • [DH] libavcodec/mpeg4videodec.c
  • [DH] libavcodec/msmpeg4dec.c

• How to use Intel QSV record screen based on ffmpeg

  18 octobre 2020, par zonda

  I want to record my screen with ffmpeg.
  
I succeeded in the normal way.
  
ffmpeg -f gdigrab -framerate 30 -draw_mouse 1 -i desktop -c:v h264 -r 30 -preset ultrafast -tune zerolatency -pix_fmt yuv420p "record.mp4"

  



  But I want use GPU record my screen now.
  
I'm trying to use Intel QSV on ffmpeg.
  
ffmpeg -f gdigrab -framerate 30 -draw_mouse 1 -i desktop -c:v h264_qsv -r 30 -tune zerolatency -pix_fmt yuv420p "record.mp4"

  



  It does not work and show :
  
[h264_qsv @ 0000000000479080] Error initializing the encoder: invalid video parameters (-15)
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

I don't know what happened.

  



  And I'm trying simple way.
  
ffmpeg -i test_input.mp4 -c:v h264_qsv -preset:v faster test_output.mp4
  
It does not work too.

  



  My computer information :
  
acer notebook : TravelMate P243-MG
  
OS : windows 7 64bits
  
CPU : Intel i5-3210M
  
Graphics card : Nvidia GT-630M

  



  Thanks in advance !