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  1. I comparing FFmpeg vs FFprobe to get total frame given input,
    I found FFmpeg (using null output) count frame much faster then FFprobe,
    So, there are way to count frame faster in FFprobe?
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  2. what commandline are you using? ffmpeg will decode a/v, and be much slower than ffprobe (you can speed it up slightly if you disable audio -an)

    you can use ffprobe to output the framecount directly, but they are not decoded, thus essentially instant. (In theory this might be less accurate than decoding frame by frame, so it depends what context you need this for)

    ffprobe -i "INPUT.ext" -select_streams v:0 -show_entries "stream=nb_frames"
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  3. Member
    Join Date
    Sep 2012
    Location
    Australia
    Search Comp PM
    Have you tried using the threads switch?

    ffprobe -threads %NUMBER_OF_PROCESSORS%*1.5 -v quiet -pretty -print_format csv -select_streams v:0 -count_frames -show_entries "stream=nb_frames,nb_read_frames"
    -That's not mine, I stole it from another thread-
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  4. Command-line i use is:
    Code:
    ffmpeg.exe -i "D:\Users\Anime4000\Videos\Raptr\Company of Heroes 2\2015_12_08_22_05_18-man.mp4" -map 0:0 -vcodec copy -f null - 2> gg.txt
    Result: http://pastebin.com/CWmnikpz

    I can say using ffprobe very-very slow, it took 10 minute! meanwhile ffmpeg.exe just 33 second!
    Quote Quote  
  5. When you use -vcodec copy, the frames are not decoded or counted individually, thus very fast. Remove the -vcodec copy and it will decode and count them frame by frame

    IF you use ffprobe in the mode described above, it will be as fast or faster than ffmpeg. That's equivalent to -vcodec copy (ie. in that mode it doesn't decode frames individually) .

    The faster method for either ffmpeg or ffprobe, in theory can give you errors , as it doesn't count them frame by frame. So again, it depends on the context or why you are doing this
    Quote Quote  
  6. Code:
    ffprobe -i "INPUT.ext" -select_streams v:0 -show_entries "stream=nb_frames"
    This command, some MP4s did provide total frame, so very fast since no -count_frames

    Code:
    ffprobe -threads %NUMBER_OF_PROCESSORS%*1.5 -v quiet -pretty -print_format csv -select_streams v:0 -count_frames -show_entries "stream=nb_frames,nb_read_frames"
    This works fine~

    This because I ran multi pass x265, when I give wrong frame count, x265 cannot continue...
    Quote Quote  
  7. Member
    Join Date
    May 2019
    Location
    Holland
    Search Comp PM
    Best method:

    Cmd ->

    ffprobe.exe -v error -select_streams v:0 -show_entries stream=r_frame_rate,duration -of default=nw=1 "d:\movies\The.Matrix.1999.1080p.BrRip.x264.YIFY.d ut.mp4"

    Result ->

    r_frame_rate=24000/1001
    duration=8177.794625

    Calculation ->

    Frames=24000/1001*8177.794625=196071

    Proof ->

    ffmpeg -i "d:\movies\The.Matrix.1999.1080p.BrRip.x264.YIFY.d ut.mp4" -f null /dev/null
    ffmpeg version N-92938-g0aaaca25e0-ffmpeg-windows-pacman Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8.2.0 (GCC)
    configuration: --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=ffmpeg-windows-pacman --enable-version3 --disable-debug --disable-w32threads --arch=x86_64 --target-os=mingw32 --cross-prefix=/opt/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32- --enable-libcaca --enable-gray --enable-libtesseract --enable-fontconfig --enable-gmp --enable-gnutls --enable-libass --enable-libbluray --enable-libbs2b --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libzimg --enable-libzvbi --enable-libmysofa --enable-libaom --enable-libopenjpeg --enable-libopenh264 --enable-liblensfun --enable-nvenc --enable-nvdec --extra-libs=-lm --extra-libs=-lpthread --extra-cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-cflags=-DCACA_STATIC --enable-amf --enable-libmfx --enable-gpl --enable-avisynth --enable-frei0r --enable-filter=frei0r --enable-librubberband --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxavs --enable-avresample --extra-cflags='-march=core2' --extra-cflags=-O2 --enable-static --disable-shared --prefix=/opt/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32 --enable-nonfree --enable-decklink --enable-libfdk-aac
    libavutil 56. 25.100 / 56. 25.100
    libavcodec 58. 43.100 / 58. 43.100
    libavformat 58. 25.100 / 58. 25.100
    libavdevice 58. 6.101 / 58. 6.101
    libavfilter 7. 47.100 / 7. 47.100
    libavresample 4. 0. 0 / 4. 0. 0
    libswscale 5. 4.100 / 5. 4.100
    libswresample 3. 4.100 / 3. 4.100
    libpostproc 55. 4.100 / 55. 4.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'd:\movies\The.Matrix.1999.1080p.BrRip.x264.YIFY.d ut.mp4':
    Metadata:
    major_brand : isom
    minor_version : 512
    compatible_brands: isomiso2avc1mp41
    encoder : Lavf58.25.100
    Duration: 02:16:17.91, start: 0.000000, bitrate: 2497 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x800 [SAR 1:1 DAR 12:5], 2397 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
    handler_name : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 93 kb/s (default)
    Metadata:
    handler_name : GPAC ISO Audio Handler
    Stream mapping:
    Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
    Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
    Press [q] to stop, [?] for help
    Output #0, null, to '/dev/null':
    Metadata:
    major_brand : isom
    minor_version : 512
    compatible_brands: isomiso2avc1mp41
    encoder : Lavf58.25.100
    Stream #0:0(und): Video: wrapped_avframe, yuv420p, 1920x800 [SAR 1:1 DAR 12:5], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    Metadata:
    handler_name : VideoHandler
    encoder : Lavc58.43.100 wrapped_avframe
    Stream #0:1(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s (default)
    Metadata:
    handler_name : GPAC ISO Audio Handler
    encoder : Lavc58.43.100 pcm_s16le

    HERE!!! ->

    frame=196071 fps=331 q=-0.0 Lsize=N/A time=02:16:17.90 bitrate=N/A speed=13.8x

    video:102631kB audio:1408772kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
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