[FFmpeg-user] ffmpeg startup

Thu Feb 27 23:57:31 EET 2020

Hello,
> 
> If you remove -hide_banner and post the command line together with the complete,
> uncut console output, we can probably suggest a configure line that produces a
> significantly smaller binary that starts quicker.

I copied the full output below for 3 seconds of video. I don't know why ffmpeg says   
\\.\pipe\DEV_000F315B978C: Invalid argument
?

> 
> You do know that h264 in avi is unusual and that no player (except
> FFmpeg-based) will support gray h264?

 I'm an ffmpeg beginner and so any suggestions appreciated. Would using mp4 as file extension and yuv420p as output pixel format be more 'standard'? I need to find a good book!

Regards,
-tk

FFMPEG OUTPUT

ffmpeg.exe -y -pix_fmt gray -vcodec rawvideo -f rawvideo -r 60 -s 658x492 -i \\.\pipe\DEV_000F315B978C -c:v libx264 -crf 19 -pix_fmt gray x:\Videos\One_2020T132200.avi
ffmpeg version git-2020-02-11-f15007a 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. 39.100 / 56. 39.100
  libavcodec     58. 68.102 / 58. 68.102
  libavformat    58. 38.100 / 58. 38.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 75.100 /  7. 75.100
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
  Input #0, rawvideo, from '\\.\pipe\DEV_000F315B978C':
    Duration: N/A, start: 0.000000, bitrate: 155393 kb/s
      Stream #0:0: Video: rawvideo (Y800 / 0x30303859), gray, 658x492, 155393 kb/s, 60 tbr, 60 tbn, 60 tbc
  Stream mapping:
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  Press [q] to stop, [?] for help
  [libx264 @ 000002e71dbff740] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  [libx264 @ 000002e71dbff740] profile High, level 3.1, 4:0:0, 8-bit
  Output #0, avi, to 'x:\Videos\One_2020T132200.avi':
    Metadata:
      ISFT            : Lavf58.38.100
      Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), gray, 658x492, q=-1--1, 60 fps, 60 tbn, 60 tbc
      Metadata:
        encoder         : Lavc58.68.102 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  frame=   33 fps=0.0 q=0.0 size=       6kB time=00:00:00.00 bitrate=N/A speed=   0x    
  frame=   64 fps= 63 q=27.0 size=      11kB time=00:00:00.10 bitrate= 888.2kbits/s speed=0.0984x    
  frame=   94 fps= 62 q=27.0 size=      41kB time=00:00:00.60 bitrate= 553.1kbits/s speed=0.396x    
  frame=  125 fps= 62 q=27.0 size=      55kB time=00:00:01.11 bitrate= 406.6kbits/s speed=0.55x    
  frame=  155 fps= 61 q=27.0 size=      68kB time=00:00:01.61 bitrate= 344.7kbits/s speed=0.638x    
  frame=  186 fps= 61 q=27.0 size=      79kB time=00:00:02.13 bitrate= 302.8kbits/s speed= 0.7x    
  frame=  217 fps= 61 q=27.0 size=      91kB time=00:00:02.65 bitrate= 281.2kbits/s speed=0.743x    
  frame=  247 fps= 61 q=27.0 size=     102kB time=00:00:03.15 bitrate= 266.4kbits/s speed=0.775x    
  frame=  278 fps= 61 q=27.0 size=     114kB time=00:00:03.66 bitrate= 253.6kbits/s speed= 0.8x    
  frame=  308 fps= 61 q=27.0 size=     148kB time=00:00:04.16 bitrate= 290.7kbits/s speed=0.819x    
  frame=  339 fps= 61 q=27.0 size=     165kB time=00:00:04.68 bitrate= 288.9kbits/s speed=0.836x    
  frame=  370 fps= 60 q=27.0 size=     179kB time=00:00:05.20 bitrate= 282.3kbits/s speed=0.85x    
  frame=  400 fps= 60 q=27.0 size=     191kB time=00:00:05.70 bitrate= 275.1kbits/s speed=0.861x    
  \\.\pipe\DEV_000F315B978C: Invalid argument
  frame=  404 fps= 59 q=-1.0 Lsize=     217kB time=00:00:06.70 bitrate= 265.2kbits/s speed=0.983x    
  video:202kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 7.552569%
  [libx264 @ 000002e71dbff740] frame I:3     Avg QP:17.20  size:  8795
  [libx264 @ 000002e71dbff740] frame P:101   Avg QP:20.56  size:  1023
  [libx264 @ 000002e71dbff740] frame B:300   Avg QP:19.43  size:   256
  [libx264 @ 000002e71dbff740] consecutive B-frames:  1.0%  0.0%  0.0% 99.0%
  [libx264 @ 000002e71dbff740] mb I  I16..4:  7.5% 83.6%  8.9%
  [libx264 @ 000002e71dbff740] mb P  I16..4:  0.2%  0.8%  0.1%  P16..4: 14.1%  2.6%  3.6%  0.0%  0.0%    skip:78.5%
  [libx264 @ 000002e71dbff740] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 14.5%  0.1%  0.0%  direct: 0.0%  skip:85.4%  L0:50.6% L1:49.3% BI: 0.1%
  [libx264 @ 000002e71dbff740] 8x8 transform intra:79.1% inter:84.3%
  [libx264 @ 000002e71dbff740] coded y intra: 39.6% inter: 1.6%
  [libx264 @ 000002e71dbff740] i16 v,h,dc,p: 31% 14%  3% 52%
  [libx264 @ 000002e71dbff740] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 54% 12% 17%  2%  3%  3%  3%  2%  4%
  [libx264 @ 000002e71dbff740] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38%  9% 13%  3% 12%  8% 11%  2%  5%
  [libx264 @ 000002e71dbff740] i8c dc,h,v,p: 100%  0%  0%  0%
  [libx264 @ 000002e71dbff740] Weighted P-Frames: Y:1.0%
  [libx264 @ 000002e71dbff740] ref P L0: 63.6%  6.4% 21.6%  8.4%
  [libx264 @ 000002e71dbff740] ref B L0: 70.4% 22.9%  6.7%
  [libx264 @ 000002e71dbff740] ref B L1: 88.7% 11.3%
  [libx264 @ 000002e71dbff740] kb/s:245.3