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• How to compress video applying even blur effect

  17 octobre 2016, par Kukuster

  How to compress video applying well-looking apportioned blur effect, like in JPG image ?

  I tried some ffmpeg postprocesing libraries, they are fspp, spp, uspp (takes really long time to render), etc. I almost reached the goal using fspp with parameters 5:60:15 . But blur was stronger than needed, and it’s leave bad artifacts when i try to use less compression. Also uspp is does beautiful and compresses enough, but it’s leave about 50% of video unblured. I also haven’t much time to try all uspp features. Is there resolution special for this purpose ?

  The point is to implement video compression with the only side effect of compression approaches jpeg-compression-like blur or blur-mask-like. Also it would be very good if there is a simple option to choose between :
  1) more compress, less pretty blur / more strong blur ; and 2) less compress, prettier blur / less strong blur.

  I am used to use ffmpeg and i’m running linux, so it would be so nice if there is a way to solve this with ffmpeg.
  Here is my ffmpeg input data about the video streams :

    Duration : 00:01:03.02, start : 0.000000, bitrate : 4010 kb/s
      Stream #0:0(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 3870 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
      Metadata :
        handler_name : VideoHandler
      Stream #0:1(eng) : Audio : aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 133 kb/s (default)
      Metadata :
        handler_name : SoundHandler
  

  Edit : attaching jpeg pictured as example of desired output :
  
  

• avformat/framecrc : enable new output

  13 avril 2016, par James Almer

  avformat/framecrc : enable new output
  Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavformat/framecrcenc.c
  • [DH] libavformat/uncodedframecrcenc.c
  • [DH] tests/ref/fate/4xm-1
  • [DH] tests/ref/fate/4xm-2
  • [DH] tests/ref/fate/8bps
  • [DH] tests/ref/fate/aasc
  • [DH] tests/ref/fate/adpcm-4xm
  • [DH] tests/ref/fate/adpcm-afc
  • [DH] tests/ref/fate/adpcm-dtk
  • [DH] tests/ref/fate/adpcm-ea-1
  • [DH] tests/ref/fate/adpcm-ea-2
  • [DH] tests/ref/fate/adpcm-ea-maxis-xa
  • [DH] tests/ref/fate/adpcm-ea-r1
  • [DH] tests/ref/fate/adpcm-ima-amv
  • [DH] tests/ref/fate/adpcm-ima-ea-eacs
  • [DH] tests/ref/fate/adpcm-ima-ea-sead
  • [DH] tests/ref/fate/adpcm-ima-smjpeg
  • [DH] tests/ref/fate/adpcm-ima-ws
  • [DH] tests/ref/fate/adpcm-ms-mono
  • [DH] tests/ref/fate/adpcm-thp
  • [DH] tests/ref/fate/adpcm-vima
  • [DH] tests/ref/fate/adpcm-xa
  • [DH] tests/ref/fate/aic
  • [DH] tests/ref/fate/aic-oddsize
  • [DH] tests/ref/fate/alg-mm
  • [DH] tests/ref/fate/aliaspix-bgr
  • [DH] tests/ref/fate/aliaspix-gray
  • [DH] tests/ref/fate/amv
  • [DH] tests/ref/fate/ansi
  • [DH] tests/ref/fate/ansi256
  • [DH] tests/ref/fate/armovie-escape124
  • [DH] tests/ref/fate/armovie-escape130
  • [DH] tests/ref/fate/asf-repldata
  • [DH] tests/ref/fate/auravision-v1
  • [DH] tests/ref/fate/auravision-v2
  • [DH] tests/ref/fate/avio-direct
  • [DH] tests/ref/fate/bethsoft-vid
  • [DH] tests/ref/fate/bfi
  • [DH] tests/ref/fate/bink-video-b
  • [DH] tests/ref/fate/bink-video-f
  • [DH] tests/ref/fate/bink-video-i
  • [DH] tests/ref/fate/bmp-15bit
  • [DH] tests/ref/fate/bmp-15bit-mask
  • [DH] tests/ref/fate/bmp-16bit-mask
  • [DH] tests/ref/fate/bmp-1bit
  • [DH] tests/ref/fate/bmp-24bit
  • [DH] tests/ref/fate/bmp-32bit
  • [DH] tests/ref/fate/bmp-32bit-mask
  • [DH] tests/ref/fate/bmp-4bit
  • [DH] tests/ref/fate/bmp-4bit-os2
  • [DH] tests/ref/fate/bmp-8bit
  • [DH] tests/ref/fate/bmp-8bit-os2
  • [DH] tests/ref/fate/bmp-rle4
  • [DH] tests/ref/fate/bmp-rle8
  • [DH] tests/ref/fate/bmpparser
  • [DH] tests/ref/fate/bmv-audio
  • [DH] tests/ref/fate/bmv-video
  • [DH] tests/ref/fate/brenderpix-24
  • [DH] tests/ref/fate/brenderpix-565
  • [DH] tests/ref/fate/brenderpix-defpal
  • [DH] tests/ref/fate/brenderpix-intpal
  • [DH] tests/ref/fate/brenderpix-y400a
  • [DH] tests/ref/fate/canopus-cllc-argb
  • [DH] tests/ref/fate/canopus-cllc-rgb
  • [DH] tests/ref/fate/canopus-cllc-yuy2-noblock
  • [DH] tests/ref/fate/canopus-hq_hqa-hq
  • [DH] tests/ref/fate/canopus-hq_hqa-hqa
  • [DH] tests/ref/fate/canopus-hq_hqa-inter
  • [DH] tests/ref/fate/canopus-hqx422
  • [DH] tests/ref/fate/canopus-hqx422a
  • [DH] tests/ref/fate/cavs
  • [DH] tests/ref/fate/cdgraphics
  • [DH] tests/ref/fate/cdxl-bitline-ham6
  • [DH] tests/ref/fate/cdxl-demux
  • [DH] tests/ref/fate/cdxl-ham6
  • [DH] tests/ref/fate/cdxl-ham8
  • [DH] tests/ref/fate/cdxl-pal8
  • [DH] tests/ref/fate/cdxl-pal8-small
  • [DH] tests/ref/fate/cljr
  • [DH] tests/ref/fate/corepng
  • [DH] tests/ref/fate/creatureshock-avs
  • [DH] tests/ref/fate/cscd
  • [DH] tests/ref/fate/cvid-grayscale
  • [DH] tests/ref/fate/cvid-palette
  • [DH] tests/ref/fate/cvid-partial
  • [DH] tests/ref/fate/cyberia-c93
  • [DH] tests/ref/fate/cyuv
  • [DH] tests/ref/fate/d-cinema-demux
  • [DH] tests/ref/fate/d-eavp6-demux
  • [DH] tests/ref/fate/dds-argb
  • [DH] tests/ref/fate/dds-argb-aexp
  • [DH] tests/ref/fate/dds-dx10-bc1
  • [DH] tests/ref/fate/dds-dx10-bc1a
  • [DH] tests/ref/fate/dds-dx10-bc2
  • [DH] tests/ref/fate/dds-dx10-bc3
  • [DH] tests/ref/fate/dds-dx10-bc4
  • [DH] tests/ref/fate/dds-dx10-bc5
  • [DH] tests/ref/fate/dds-dxt1
  • [DH] tests/ref/fate/dds-dxt1-normalmap
  • [DH] tests/ref/fate/dds-dxt1a
  • [DH] tests/ref/fate/dds-dxt2
  • [DH] tests/ref/fate/dds-dxt3
  • [DH] tests/ref/fate/dds-dxt4
  • [DH] tests/ref/fate/dds-dxt5
  • [DH] tests/ref/fate/dds-dxt5-aexp
  • [DH] tests/ref/fate/dds-dxt5-normalmap
  • [DH] tests/ref/fate/dds-dxt5-normalmap-ati
  • [DH] tests/ref/fate/dds-dxt5-rbxg
  • [DH] tests/ref/fate/dds-dxt5-rgxb
  • [DH] tests/ref/fate/dds-dxt5-rxbg
  • [DH] tests/ref/fate/dds-dxt5-rxgb
  • [DH] tests/ref/fate/dds-dxt5-xgbr
  • [DH] tests/ref/fate/dds-dxt5-xgxr
  • [DH] tests/ref/fate/dds-dxt5-xrbg
  • [DH] tests/ref/fate/dds-dxt5-ycocg
  • [DH] tests/ref/fate/dds-dxt5-ycocg-scaled
  • [DH] tests/ref/fate/dds-pal
  • [DH] tests/ref/fate/dds-pal-ati
  • [DH] tests/ref/fate/dds-rgb16
  • [DH] tests/ref/fate/dds-rgb24
  • [DH] tests/ref/fate/dds-rgba
  • [DH] tests/ref/fate/dds-rgtc1s
  • [DH] tests/ref/fate/dds-rgtc1u
  • [DH] tests/ref/fate/dds-rgtc2s
  • [DH] tests/ref/fate/dds-rgtc2u
  • [DH] tests/ref/fate/dds-rgtc2u-xy
  • [DH] tests/ref/fate/dds-uyvy
  • [DH] tests/ref/fate/dds-xbgr
  • [DH] tests/ref/fate/dds-xrgb
  • [D

• avformat/avienc : add muxer option "write_channel_mask"

  10 septembre 2015, par Tobias Rapp

  avformat/avienc : add muxer option "write_channel_mask"
  Allow writing an empty channel mask into the wave format header. Useful
  
  if the input file contains an unknown channel layout.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/avienc.c
  • [DH] libavformat/riff.h
  • [DH] libavformat/riffenc.c