[FFmpeg-trac] #7089(ffmpeg:new): Unmapped lavfi outputs with unlabelled pads automatically included

FFmpeg trac at avcodec.org
Sat Mar 17 10:03:52 EET 2018


#7089: Unmapped lavfi outputs with unlabelled pads automatically included
--------------------------------+---------------------------------------
             Reporter:  Gyan    |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  unspecified
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+---------------------------------------
 '''Summary of the bug''':

 Filtergraph outputs without a labelled pad are automatically included in
 the output even with `-map`. If labelled, expected "unconnected output"
 error is shown.

 '''How to reproduce''':

 `ffmpeg -f lavfi -i testsrc -f lavfi -i testsrc -filter_complex
 "[0:v][1:v]psnr[out];[0]null" -map [out] -f null -`

 {{{
 ffmpeg version N-90168-gc0919c4985 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 7.3.0 (Rev1, Built by MSYS2 project)
   configuration:  --enable-libmp3lame --enable-libopus --enable-libvorbis
 --enable-libvpx --enable-libx264 --enable-libx265 --enable-fontconfig
 --enable-libass --enable-libbluray --enable-libfreetype --enable-libmfx
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-libsnappy --enable-libsoxr --enable-libspeex
 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-
 amrwbenc --enable-libwavpack --enable-libwebp --enable-libxml2 --enable-
 libzimg --enable-libshine --enable-gpl --enable-openssl --enable-avisynth
 --enable-chromaprint --enable-decklink --enable-frei0r --enable-libbs2b
 --enable-libcaca --enable-libcdio --enable-libfdk-aac --enable-libflite
 --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc
 --enable-libkvazaar --enable-libmodplug --enable-libopenh264 --enable-
 libopenmpt --enable-librtmp --enable-librubberband --enable-libssh
 --enable-libtesseract --enable-libxavs --enable-libxvid --enable-libzmq
 --enable-libzvbi --enable-opencl --enable-opengl --enable-libcodec2
 --extra-cflags=-fopenmp --extra-libs=-lgomp --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-libs=-lstdc++ --extra-
 cflags=-DLIBSSH_STATIC --extra-ldflags='-Wl,--allow-multiple-definition'
 --extra-cflags=-DCACA_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCHROMAPRINT_NODLL --extra-libs=-lstdc++ --extra-
 cflags=-DZMQ_STATIC --extra-libs=-lpsapi --extra-cflags=-DLIBXML_STATIC
 --disable-w32threads --extra-cflags=-DKVZ_STATIC_LIB --enable-version3
 --enable-nonfree --disable-debug
   libavutil      56.  7.101 / 56.  7.101
   libavcodec     58. 13.100 / 58. 13.100
   libavformat    58. 10.100 / 58. 10.100
   libavdevice    58.  2.100 / 58.  2.100
   libavfilter     7. 12.100 /  7. 12.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, lavfi, from 'testsrc':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Input #1, lavfi, from 'testsrc':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #1:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 (rawvideo) -> psnr:main
   Stream #0:0 (rawvideo) -> null
   Stream #1:0 (rawvideo) -> psnr:reference
   null -> Stream #0:0 (wrapped_avframe)
   psnr -> Stream #0:1 (wrapped_avframe)
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf58.10.100
     Stream #0:0: Video: wrapped_avframe, rgb24(progressive), 320x240 [SAR
 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.13.100 wrapped_avframe
     Stream #0:1: Video: wrapped_avframe, gbrp, 320x240 [SAR 1:1 DAR 4:3],
 q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.13.100 wrapped_avframe
 frame=   25 fps=0.0 q=-0.0 Lq=-0.0 size=N/A time=00:00:01.00 bitrate=N/A
 speed=50.8x
 video:26kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 [Parsed_psnr_0 @ 0000000002a8b000] PSNR r:inf g:inf b:inf average:inf
 min:inf max:inf
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7089>
FFmpeg <https://ffmpeg.org>
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