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

[FFmpeg]

#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):

 I'm not highly familiar with FFMPEG so please forgive my lack of expertise
 on this.
 First, I'm running MacOS and I've been unable to run the script as it is.
 Not sure why.
 So, I've been removing the variables from the script and creating single
 command lines like so:

 '''ffmpeg -f lavfi -i nullsrc=size=640x640 -vf
 "format=gray8,geq='clip(128-128/11.5*(180-191.5/(640/2)*hypot(X-640/2,Y-640/2)),0,255)',v360=input=fisheye:output=e:ih_fov=191.5:iv_fov=191.5,format=rgb24"
 -frames 1 -y mergemap.png'''

 '''ffmpeg -i in.mp4 -i mergemap.png -lavfi
 "[0]format=rgb24,split[a][b];[a]crop=ih:iw/2:0:0,v360=input=fisheye:output=e:ih_fov=191.5:iv_fov=191.5[c];[b]crop=ih:iw/2:iw/2:0,v360=input=fisheye:output=e:yaw=180:ih_fov=191.5:iv_fov=191.5[d];[c][d]
 [1]maskedmerge,format=rgb24" -t 10 -y out.mp4'''


 However, running the first command above gives me this error:
 '''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, lavfi, from 'nullsrc=size=640x640':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x640
 [SAR 1:1 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> png (native))
 Press [q] to stop, [?] for help
 [v360 @ 0x7fd41dc0c000] [Eval @ 0x7ffeeed800a0] Undefined constant or
 missing '(' in 'fisheye'
 [v360 @ 0x7fd41dc0c000] Unable to parse option value "fisheye"
 [Parsed_v360_2 @ 0x7fd41dc0bf40] Option 'ih_fov' not found
 [AVFilterGraph @ 0x7fd41de02840] Error initializing filter 'v360' with
 args 'input=fisheye:output=e:ih_fov=191.5:iv_fov=191.5'
 Error reinitializing filters!
 Failed to inject frame into filter network: Option not found
 Error while processing the decoded data for stream #0:0
 Conversion failed!'''

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Ticket URL: <https://trac.ffmpeg.org/ticket/8459#comment:24>
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