[FFmpeg-trac] #8459(avfilter:open): V360 + BLEND

FFmpeg trac at avcodec.org
Sat Feb 22 21:38:20 EET 2020


#8459: V360 + BLEND
-------------------------------------+------------------------------------
             Reporter:  villmer      |                    Owner:  villmer
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  v360         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by villmer):

 Conversion failed:

 ffmpeg -i equi_frame.png -vf
 geq=cb_expr='cb(X,Y)':cr_expr='cr(X,Y)':lum_expr='if(between(X,229,249),lum(X,Y)+lerp((X-229)/20,0,lum(249,Y)-lum(250,Y)),lum(X,Y))',format=rgb24
 -y out.png

 ffmpeg version git-2020-01-04-3c8da7b Copyright (c) 2000-2020 the FFmpeg
 developers
   built with Apple clang version 11.0.0 (clang-1100.0.33.16)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-3c8da7b --enable-
 shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang
 --host-
 cflags='-I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/
 -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls
 --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame
 --enable-libopus --enable-librubberband --enable-libsnappy --enable-
 libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis
 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid
 --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r
 --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr
 --enable-videotoolbox --disable-libjack --disable-indev=jack
   libavutil      56. 38.100 / 56. 38.100
   libavcodec     58. 65.102 / 58. 65.102
   libavformat    58. 35.101 / 58. 35.101
   libavdevice    58.  9.103 / 58.  9.103
   libavfilter     7. 70.101 /  7. 70.101
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  6.100 /  5.  6.100
   libswresample   3.  6.100 /  3.  6.100
   libpostproc    55.  6.100 / 55.  6.100
 Input #0, image2, from 'equi_frame.png':
   Duration: 00:00:00.04, start: 0.000000, bitrate: 17496 kb/s
     Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc,
 bt470bg/unknown/unknown), 1000x499 [SAR 1:1 DAR 1000:499], 25 tbr, 25 tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> png (native))
 Press [q] to stop, [?] for help
 [Parsed_geq_0 @ 0x7fc72d700940] A luminance or RGB expression is mandatory
 [AVFilterGraph @ 0x7fc72d5029c0] Error initializing filter 'geq' with args
 'cb_expr=cb(X'
 Error reinitializing filters!
 Failed to inject frame into filter network: Invalid argument
 Error while processing the decoded data for stream #0:0
 Conversion failed!

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8459#comment:6>
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