[FFmpeg-trac] #8934(ffmpeg:new): some xfade transitions fail with `Undefined constant or missing '(' in ...`

FFmpeg trac at avcodec.org
Tue Oct 13 15:51:54 EEST 2020


#8934: some xfade transitions fail with `Undefined constant or missing '(' in ...`
-------------------------------------+-------------------------------------
             Reporter:               |                     Type:  defect
  alexandr2110pro                    |
               Status:  new          |                 Priority:  important
            Component:  ffmpeg       |                  Version:  git-
             Keywords:  xfade,       |  master
  ffmpeg, transition                 |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I am trying to make xfade transitions for a list of input videos.

 All transition types are working fine except these five:
 - hblur
 - wipetl
 - wipebl
 - wipetr
 - wipebr

 I'm on:
 - ffmpeg version: 4.3.1
 - OS: OSX 10.15.6

 It looks like the same is happening on Alpine Linux 3.12

 Here is the command:

 {{{
 ffmpeg -y \
 -i 1.mp4 \
 -i 2.mp4 \
 -i 3.mp4 \
 -filter_complex
 "[0][1]xfade=transition=hblur:duration=0.5:offset=4.066[V1];\
 [V1][2]xfade=transition=hblur:duration=0.5:offset=12.142,format=yuv420p[video];\
 [0:a][1:a]acrossfade=d=0.5:c1=tri:c2=tri[A1];\
 [A1][2:a]acrossfade=d=0.5:c1=tri:c2=tri[audio]" \
 -map "[video]" -map "[audio]" video.mp4
 }}}


 Here is the output:

 {{{
 ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
   built with Apple clang version 11.0.3 (clang-1103.0.32.62)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1 --enable-shared
 --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-
 cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl
 --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame
 --enable-libopus --enable-librav1e --enable-librubberband --enable-
 libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora
 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxml2 --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. 51.100 / 56. 51.100
   libavcodec     58. 91.100 / 58. 91.100
   libavformat    58. 45.100 / 58. 45.100
   libavdevice    58. 10.100 / 58. 10.100
   libavfilter     7. 85.100 /  7. 85.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  7.100 /  5.  7.100
   libswresample   3.  7.100 /  3.  7.100
   libpostproc    55.  7.100 / 55.  7.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf58.29.100
   Duration: 00:00:10.71, start: 0.000000, bitrate: 1229 kb/s
     Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono,
 fltp, 66 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
     Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1280x720, 1152 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf58.29.100
   Duration: 00:00:09.54, start: 0.000000, bitrate: 609 kb/s
     Stream #1:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono,
 fltp, 52 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
     Stream #1:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1280x720, 545 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '3.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf58.29.100
   Duration: 00:00:11.80, start: 0.000000, bitrate: 484 kb/s
     Stream #2:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono,
 fltp, 66 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
     Stream #2:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1280x720, 405 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 [xfade @ 0x7f82b3608fc0] [Eval @ 0x7ffeee71fb40] Undefined constant or
 missing '(' in 'hblur'
 [xfade @ 0x7f82b3608fc0] Unable to parse option value "hblur"
 [xfade @ 0x7f82b3608fc0] [Eval @ 0x7ffeee71fb90] Undefined constant or
 missing '(' in 'hblur'
 [xfade @ 0x7f82b3608fc0] Unable to parse option value "hblur"
 [xfade @ 0x7f82b3608fc0] Error setting option transition to value hblur.
 [Parsed_xfade_0 @ 0x7f82b3608f00] Error applying options to the filter.
 [AVFilterGraph @ 0x7f82b3610b80] Error initializing filter 'xfade' with
 args 'transition=hblur:duration=0.5:offset=4.066'
 Error initializing complex filters.
 Invalid argument
 }}}

 See also the related fluent-ffmpeg bug report I've posted:
 https://github.com/fluent-ffmpeg/node-fluent-ffmpeg/issues/1072

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8934>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list