4 ms·

I've been so frustrated that FFprobe functionality is not part of FFmpeg. My app extracts screenshots from videos to create a beautiful gallery of videos. But

• jasomill 4y ago
  ffmpeg and ffprobe are built against the exact same set of libraries, so they could certainly be combined into a single program if the ffmpeg maintainers chose to do so. Two possible options to reduce the size of your application: (1) Instead of using ffprobe, just call "ffmpeg -i <filename>" without specifying an output file, then parse stderr: $ ffmpeg -i https://download.dolby.com/us/en/test-tones/dolby-atmos-trailer_amaze_1080.mp4 >/dev/null ffmpeg version 4.4.2 Copyright (c) 2000-2021 the FFmpeg developers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://download.dolby.com/us/en/test-tones/dolby-atmos-trailer_amaze_1080.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.76.100 Duration: 00:01:03.55, start: 0.000000, bitrate: 4537 kb/s Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 128 kb/s (default) Metadata: handler_name : sound handler vendor_id : [0][0][0][0] Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4404 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default) Metadata: handler_name : video handler vendor_id : [0][0][0][0] At least one output file must be specified This is admittedly messy compared to parsing structured ffprobe output, but it does contain all the information you mentioned (assuming duration in centiseconds is sufficiently precise for your application). (2) Link both ffmpeg and ffprobe dynamically, in which case they'll share all but a few hundred kilobytes of on-disk code. For example, consider ffmpeg and ffprobe as installed from package repositories on a variety of systems: ffmpeg 4.4.2 installed by MacPorts on macOS Monterey (x86_64): $ du -hA /opt/local/bin/ff{mpeg,probe} 339K /opt/local/bin/ffmpeg 260K /opt/local/bin/ffprobe $ diff -s <(otool -L /opt/local/bin/ffmpeg) <(otool -L /opt/local/bin/ffprobe) 1c1 < /opt/local/bin/ffmpeg: --- > /opt/local/bin/ffprobe: 72d71 < /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) ffmpeg 5.1.2 installed from RPM Fusion on Fedora 37 (x86_64): $ du -h /usr/bin/ff{mpeg,probe} 284K /usr/bin/ffmpeg 176K /usr/bin/ffprobe $ diff -s <(ldd /usr/bin/ffmpeg | awk '{ print $1 }') <(ldd /usr/bin/ffprobe | awk '{ print $1 }') Files /dev/fd/63 and /dev/fd/62 are identical ffmpeg 4.3.5 installed from raspberrypi.org on Debian 11.6 (aarch64): $ du -h /usr/bin/ff{mpeg,probe} 276K /usr/bin/ffmpeg 176K /usr/bin/ffprobe $ diff -s <(ldd /usr/bin/ffmpeg | awk '{ print $1 }') <(ldd /usr/bin/ffprobe | awk '{ print $1 }') Files /dev/fd/63 and /dev/fd/62 are identical MinGW-w64 ffmpeg 4.4.3 installed by MSYS2 on Windows 10 (x86_64): $ du -h /mingw64/bin/ff{mpeg,probe}.exe 320K /mingw64/bin/ffmpeg.exe 184K /mingw64/bin/ffprobe.exe $ diff -s <(Dependencies -depth 1 -modules /mingw64/bin/ffmpeg.exe | tail -n +2) <(Dependencies -depth 1 -modules /mingw64/bin/ffprobe.exe | tail -n +2) Files /dev/fd/63 and /dev/fd/62 are identical ("Dependencies" is Dependencies.exe from https://github.com/lucasg/Dependencies https://github.com/lucasg/Dependencies)
  • yboris 4y ago
    You are a superhero! I'll explore these options <3 https://github.com/whyboris/Video-Hub-App https://github.com/whyboris/Video-Hub-App