I am using Ubuntu 14.04.5 LTS 32 bit and ffmpeg to extract the time of a video.
In Windows 10 the command works:
/usr/bin/ffmpeg -i video.mp4 -vstats 2> & 1
In Linux ffmpeg returns the error in red:
At least one output file must be specified
The error complete is here:
ffmpeg version 2.4.3-1ubuntu1~trusty6 Copyright (c) 2000-2014 the FFmpeg developers built on Nov 22 2014 17:07:19 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) configuration: --prefix=/usr --extra-version='1ubuntu1~trusty6' --build-suffix=-ffmpeg --toolchain=hardened --extra-cflags= --extra-cxxflags= --libdir=/usr/lib/i386-linux-gnu --shlibdir=/usr/lib/i386-linux-gnu --incdir=/ usr/include/i386-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-fontconfig --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-opengl --enable-x11grab --enable-libxvid --enable-libx265 --enable-libdc1394 --enable-libiec61883 --enable-libzvbi --enable-libzmq --enable-frei0r --enable-libx264 --enable-libsoxr --enable-openal --enable-libopencv libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp41isom creation_time : 2017-01-29 15:42:02 location : -21.6646-46.7394/ location-eng : -21.6646-46.7394/ Duration: 00:01:49.43, start: 0.000000, bitrate: 1171 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 640x360 [SAR 1:1 DAR 16:9], 992 kb/s, 15.01 fps, 15 tbr, 30k tbn, 60 tbc (default) Metadata: creation_time : 2017-01-29 15:42:02 handler_name : VideoHandler encoder : AVC Coding Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 174 kb/s (default) Metadata: creation_time : 2017-01-29 15:42:02 handler_name : SoundHandler At least one output file must be specified
How can I fix this problem?
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Answer
Use
/usr/bin/ffmpeg -i video.mp4 -vstats -map 0:v -f null - 2>&1
Or you could just use ffprobe
ffprobe -show_entries format=duration -of compact=p=0:nk=1 video.mp4