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• CRF/CQP is incompatible with 2pass. FFmpeg error

  22 juillet 2020, par user12129980

  This is my command :

  



  ..\ffmpeg -y -i "D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4" -c:v libx264 -preset ultrafast -maxrate 3000k -bufsize 6000k -g 50 -c:a aac -b:a 128k -ac 2 -ar 44100 -an -pass 1 -f mp4 NUL   && ..\ffmpeg -i "D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4" -c:v libx264 -s 1280x720 -preset ultrafast -maxrate 500k -bufsize 1000k -vf "scale=1280:-1,format=yuv420p" -g 50 -c:a aac -b:a 128k -ac 2 -ar 44100 -an -pass 2 aa_start_with_BAGAN.mp4_ultrafast_500.mp4


  



  in the output I get CRF/CQP is incompatible with 2pass, but I didnt use the cfr/-q option in the command at all, why do I get this error ?
Add the full metadata of FFMpeg maybe someone can help me with this ?
(-g 50 because the default fps is 25 base on the documentation)

  



  `ffmpeg version git-2020-01-29-de1b2aa Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 38.100 / 56. 38.100
  libavcodec     58. 67.100 / 58. 67.100
  libavformat    58. 36.100 / 58. 36.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 71.100 /  7. 71.100
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: M4V mp42isom
    creation_time   : 2018-04-24T18:21:09.000000Z
  Duration: 00:35:54.00, start: 0.000000, bitrate: 1057 kb/s
    Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 929 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2018-04-24T18:21:09.000000Z
      handler_name    : Mainconcept MP4 Video Media Handler
      encoder         : AVC Coding
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2018-04-24T18:21:09.000000Z
      handler_name    : Mainconcept MP4 Sound Media Handler
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (NUL) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0000024ec2de0f80] using SAR=1/1
[libx264 @ 0000024ec2de0f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000024ec2de0f80] profile Constrained Baseline, level 3.0, 4:2:0, 8-bit
[libx264 @ 0000024ec2de0f80] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=50 keyint_min=5 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=3000 vbv_bufsize=6000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
Output #0, mp4, to 'NUL':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: M4V mp42isom
    encoder         : Lavf58.36.100
    Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2018-04-24T18:21:09.000000Z
      handler_name    : Mainconcept MP4 Video Media Handler
      encoder         : Lavc58.67.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 3000000/0/0 buffer size: 6000000 vbv_delay: N/A
frame=53849 fps=999 q=-1.0 Lsize=  496489kB time=00:35:53.92 bitrate=1888.3kbits/s speed=39.9x
video:496266kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.044919%
[libx264 @ 0000024ec2de0f80] frame I:1077  Avg QP:20.39  size: 38800
[libx264 @ 0000024ec2de0f80] frame P:52772 Avg QP:23.39  size:  8838
[libx264 @ 0000024ec2de0f80] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0000024ec2de0f80] mb P  I16..4:  8.4%  0.0%  0.0%  P16..4: 51.8%  0.0%  0.0%  0.0%  0.0%    skip:39.8%
[libx264 @ 0000024ec2de0f80] coded y,uvDC,uvAC intra: 44.8% 54.5% 18.3% inter: 30.2% 22.0% 2.0%
[libx264 @ 0000024ec2de0f80] i16 v,h,dc,p: 39% 25% 16% 19%
[libx264 @ 0000024ec2de0f80] i8c dc,h,v,p: 35% 23% 24% 17%
[libx264 @ 0000024ec2de0f80] kb/s:1887.41
ffmpeg version git-2020-01-29-de1b2aa Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 38.100 / 56. 38.100
  libavcodec     58. 67.100 / 58. 67.100
  libavformat    58. 36.100 / 58. 36.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 71.100 /  7. 71.100
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: M4V mp42isom
    creation_time   : 2018-04-24T18:21:09.000000Z
  Duration: 00:35:54.00, start: 0.000000, bitrate: 1057 kb/s
    Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 929 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2018-04-24T18:21:09.000000Z
      handler_name    : Mainconcept MP4 Video Media Handler
      encoder         : AVC Coding
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2018-04-24T18:21:09.000000Z
      handler_name    : Mainconcept MP4 Sound Media Handler
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (aa_start_with_BAGAN.mp4_ultrafast_500.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0000013691fbda00] using SAR=3/4
[libx264 @ 0000013691fbda00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000013691fbda00] CRF/CQP is incompatible with 2pass.
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!`


  


• FFMPEG - How to pipe RMS_level and pts_time metadata without generating unwanted metadata

  6 février 2020, par Tovi Newman

  I am trying to find the loudest (highest rms_level) moment in an audio file, but I need to pipe the metadata rather than write to a file.

  I converted the answer found here : [https://superuser.com/questions/1183663/determining-audio-level-peaks-with-ffmpeg][1]

  By removing the write to file command and adding a pipe.
  Here’s what I’ve got.

  ffmpeg -i loudSoft.mp3 -af astats=metadata=1:reset=1,ametadata=print:key=lavfi.astats.Overall.RMS_level -f null - 2> result.txt

  The only problem is, now I’ve got a lot of unwanted metadata before and after the RMS_level and pts_time data as well as [Parsed_ametadata_1 @ 0x7f9d42c37500] being printed on each line. None of that was being written when I was writing to a file instead of piping. (all I need is the time and the rms.)

  Here is an abridged version of what I get when I write to file :

  frame:0    pts:0       pts_time:0
  
  lavfi.astats.Overall.RMS_level=-inf
  
  frame:1    pts:47      pts_time:0.00106576
  
  lavfi.astats.Overall.RMS_level=-165.163347
  
  frame:2    pts:1199    pts_time:0.0271882
  
  lavfi.astats.Overall.RMS_level=-99.736394
  
  frame:3    pts:2351    pts_time:0.0533107
  
  lavfi.astats.Overall.RMS_level=-88.112282
  
  frame:4    pts:3503    pts_time:0.0794331
  
  lavfi.astats.Overall.RMS_level=-86.554314
  
  frame:5    pts:4655    pts_time:0.105556
  
  lavfi.astats.Overall.RMS_level=-82.977501
  
  frame:6    pts:5807    pts_time:0.131678
  
  lavfi.astats.Overall.RMS_level=-79.698739
  
  frame:7    pts:6959    pts_time:0.1578
  
  lavfi.astats.Overall.RMS_level=-76.629393
  
  frame:8    pts:8111    pts_time:0.183923
  
  lavfi.astats.Overall.RMS_level=-71.581211
  
  frame:9    pts:9263    pts_time:0.210045
  
  lavfi.astats.Overall.RMS_level=-75.038503
  
  frame:10   pts:10415   pts_time:0.236168

  And here is what I’m looking at :

  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.16)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include/darwin -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-libwebp --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. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mp3, from 'loudSoft2.mp3':
  
    Metadata:
  
      encoder         : Lavf58.29.100
  
    Duration: 00:00:09.85, start: 0.025057, bitrate: 128 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc58.54
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mp3 (mp3float) -> pcm_s16le (native))
  
  Press [q] to stop, [?] for help
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:0    pts:0       pts_time:0
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-inf
  
  Output #0, null, to 'pipe:':
  
    Metadata:
  
      encoder         : Lavf58.29.100
  
      Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
  
      Metadata:
  
        encoder         : Lavc58.54.100 pcm_s16le
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:1    pts:47      pts_time:0.00106576
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-165.163347
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:2    pts:1199    pts_time:0.0271882
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-99.736394
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:3    pts:2351    pts_time:0.0533107
  
  
  
  
  
  *** MIDDLE OMITTED FOR BREVITY ***
  
  
  
  
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.532185
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:375  pts:430895  pts_time:9.77086
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.594276
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] frame:376  pts:432047  pts_time:9.79698
  
  [Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.654138
  
  size=N/A time=00:00:09.82 bitrate=N/A speed=82.6x    
  
  video:0kB audio:1692kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Channel: 1
  
  [Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Crest factor: 3.126627
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Dynamic range: 76.274252
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings: 246
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings rate: 0.222624
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Channel: 2
  
  [Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Crest factor: 3.126627
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Dynamic range: 76.274252
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings: 246
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings rate: 0.222624
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Overall
  
  [Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of samples: 1105
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0.000000
  
  [Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0.000000

• pip install av produces a LINK 1181 error

  6 février 2020, par user8606643

  initially, pip install av asked me to download visual C++ 14 build tools which I did
  but it is still showing me LINK 1181 errors

  I need this pyAV pakcage which is obtained by pip install av for a project, but it always shows some kind of error linked with C++ and i also have ffmpeg installed.

  C:\Users\manop>pip install av
  
  Collecting av
  
    Using cached av-7.0.0.tar.gz (2.3 MB)
  
  Building wheels for collected packages: av
  
    Building wheel for av (setup.py) ... error
  
    ERROR: Command errored out with exit status 1:
  
     command: 'c:\users\manop\appdata\local\programs\python\python37\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"'; __file__='"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\manop\AppData\Local\Temp\pip-wheel-oti9y28m'
  
         cwd: C:\Users\manop\AppData\Local\Temp\pip-install-rydo0uqj\av\
  
    Complete output (38 lines):
  
    running bdist_wheel
  
    running build
  
    running build_py
  
    creating build
  
    creating build\lib.win-amd64-3.7
  
    creating build\lib.win-amd64-3.7\av
  
    copying av\datasets.py -> build\lib.win-amd64-3.7\av
  
    copying av\deprecation.py -> build\lib.win-amd64-3.7\av
  
    copying av\__init__.py -> build\lib.win-amd64-3.7\av
  
    copying av\__main__.py -> build\lib.win-amd64-3.7\av
  
    creating build\lib.win-amd64-3.7\av\audio
  
    copying av\audio\__init__.py -> build\lib.win-amd64-3.7\av\audio
  
    creating build\lib.win-amd64-3.7\av\codec
  
    copying av\codec\__init__.py -> build\lib.win-amd64-3.7\av\codec
  
    creating build\lib.win-amd64-3.7\av\container
  
    copying av\container\__init__.py -> build\lib.win-amd64-3.7\av\container
  
    creating build\lib.win-amd64-3.7\av\data
  
    copying av\data\__init__.py -> build\lib.win-amd64-3.7\av\data
  
    creating build\lib.win-amd64-3.7\av\filter
  
    copying av\filter\__init__.py -> build\lib.win-amd64-3.7\av\filter
  
    creating build\lib.win-amd64-3.7\av\sidedata
  
    copying av\sidedata\__init__.py -> build\lib.win-amd64-3.7\av\sidedata
  
    creating build\lib.win-amd64-3.7\av\subtitles
  
    copying av\subtitles\__init__.py -> build\lib.win-amd64-3.7\av\subtitles
  
    creating build\lib.win-amd64-3.7\av\video
  
    copying av\video\__init__.py -> build\lib.win-amd64-3.7\av\video
  
    running build_ext
  
    running config
  
    writing build\temp.win-amd64-3.7\Release\include\pyav\config.h
  
    running cythonize
  
    building 'av.buffer' extension
  
    creating build\temp.win-amd64-3.7\Release\src
  
    creating build\temp.win-amd64-3.7\Release\src\av
  
    C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\users\manop\appdata\local\programs\python\python37\include -Ibuild\temp.win-amd64-3.7\Release\include -Iinclude -Ic:\users\manop\appdata\local\programs\python\python37\include -Ic:\users\manop\appdata\local\programs\python\python37\include -Ibuild\temp.win-amd64-3.7\Release\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt" /Tcsrc\av\buffer.c /Fobuild\temp.win-amd64-3.7\Release\src\av\buffer.obj
  
    buffer.c
  
    C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\PCbuild\amd64 /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\libs /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\libs /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\PCbuild\amd64 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\Lib\x64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\um\x64" /LIBPATH:C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319 "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\ucrt\x64" swresample.lib swscale.lib avdevice.lib avutil.lib avcodec.lib avformat.lib avfilter.lib /EXPORT:PyInit_buffer build\temp.win-amd64-3.7\Release\src\av\buffer.obj /OUT:build\lib.win-amd64-3.7\av\buffer.cp37-win_amd64.pyd /IMPLIB:build\temp.win-amd64-3.7\Release\src\av\buffer.cp37-win_amd64.lib /OPT:NOREF
  
    LINK : fatal error LNK1181: cannot open input file 'swresample.lib'
  
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.16.27023\\bin\\HostX64\\x64\\link.exe' failed with exit status 1181
  
    ----------------------------------------
  
    ERROR: Failed building wheel for av
  
    Running setup.py clean for av
  
  Failed to build av
  
  Installing collected packages: av
  
      Running setup.py install for av ... error
  
      ERROR: Command errored out with exit status 1:
  
       command: 'c:\users\manop\appdata\local\programs\python\python37\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"'; __file__='"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\manop\AppData\Local\Temp\pip-record-xac0xiy4\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\manop\appdata\local\programs\python\python37\Include\av'
  
           cwd: C:\Users\manop\AppData\Local\Temp\pip-install-rydo0uqj\av\
  
      Complete output (38 lines):
  
      running install
  
      running build
  
      running build_py
  
      creating build
  
      creating build\lib.win-amd64-3.7
  
      creating build\lib.win-amd64-3.7\av
  
      copying av\datasets.py -> build\lib.win-amd64-3.7\av
  
      copying av\deprecation.py -> build\lib.win-amd64-3.7\av
  
      copying av\__init__.py -> build\lib.win-amd64-3.7\av
  
      copying av\__main__.py -> build\lib.win-amd64-3.7\av
  
      creating build\lib.win-amd64-3.7\av\audio
  
      copying av\audio\__init__.py -> build\lib.win-amd64-3.7\av\audio
  
      creating build\lib.win-amd64-3.7\av\codec
  
      copying av\codec\__init__.py -> build\lib.win-amd64-3.7\av\codec
  
      creating build\lib.win-amd64-3.7\av\container
  
      copying av\container\__init__.py -> build\lib.win-amd64-3.7\av\container
  
      creating build\lib.win-amd64-3.7\av\data
  
      copying av\data\__init__.py -> build\lib.win-amd64-3.7\av\data
  
      creating build\lib.win-amd64-3.7\av\filter
  
      copying av\filter\__init__.py -> build\lib.win-amd64-3.7\av\filter
  
      creating build\lib.win-amd64-3.7\av\sidedata
  
      copying av\sidedata\__init__.py -> build\lib.win-amd64-3.7\av\sidedata
  
      creating build\lib.win-amd64-3.7\av\subtitles
  
      copying av\subtitles\__init__.py -> build\lib.win-amd64-3.7\av\subtitles
  
      creating build\lib.win-amd64-3.7\av\video
  
      copying av\video\__init__.py -> build\lib.win-amd64-3.7\av\video
  
      running build_ext
  
      running config
  
      writing build\temp.win-amd64-3.7\Release\include\pyav\config.h
  
      running cythonize
  
      building 'av.buffer' extension
  
      creating build\temp.win-amd64-3.7\Release\src
  
      creating build\temp.win-amd64-3.7\Release\src\av
  
      C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ibuild\temp.win-amd64-3.7\Release\include -Iinclude -Ic:\users\manop\appdata\local\programs\python\python37\include -Ic:\users\manop\appdata\local\programs\python\python37\include -Ic:\users\manop\appdata\local\programs\python\python37\include -Ibuild\temp.win-amd64-3.7\Release\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\Include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt" /Tcsrc\av\buffer.c /Fobuild\temp.win-amd64-3.7\Release\src\av\buffer.obj
  
      buffer.c
  
      C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\PCbuild\amd64 /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\libs /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\libs /LIBPATH:c:\users\manop\appdata\local\programs\python\python37\PCbuild\amd64 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\Lib\x64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\um\x64" /LIBPATH:C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319 "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\ucrt\x64" avutil.lib avfilter.lib swresample.lib swscale.lib avformat.lib avcodec.lib avdevice.lib /EXPORT:PyInit_buffer build\temp.win-amd64-3.7\Release\src\av\buffer.obj /OUT:build\lib.win-amd64-3.7\av\buffer.cp37-win_amd64.pyd /IMPLIB:build\temp.win-amd64-3.7\Release\src\av\buffer.cp37-win_amd64.lib /OPT:NOREF
  
      LINK : fatal error LNK1181: cannot open input file 'avutil.lib'
  
      error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.16.27023\\bin\\HostX64\\x64\\link.exe' failed with exit status 1181
  
      ----------------------------------------
  
  ERROR: Command errored out with exit status 1: 'c:\users\manop\appdata\local\programs\python\python37\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"'; __file__='"'"'C:\\Users\\manop\\AppData\\Local\\Temp\\pip-install-rydo0uqj\\av\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\manop\AppData\Local\Temp\pip-record-xac0xiy4\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\manop\appdata\local\programs\python\python37\Include\av' Check the logs for full command output.

  These are my visual C++ selections :
  my visual studio installer individual components selection