Am 21.10.2015 um 18:32 schrieb Virgil Stokes:
How can one extract the type of video file when it has a name that gives no hint as to what type of video file it is (e.g. e45612mj is the name of the file)? Note, there is no suffix (file extension)
like any other software on any proper opeating system - by just look into the file
[harry@srv-rhsoft:/downloads]$ file --mime-type test test: video/x-m4v [harry@srv-rhsoft:/downloads]$ ffmpeg -i test ffmpeg version 2.8.1 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.1.1 (GCC) 20150618 (Red Hat 5.1.1-4)configuration: --prefix=/usr/local --bindir=/usr/local/bin --mandir=/usr/local/man --extra-cflags='-I/usr/local/x264 -m64 -O2 -g0 -march=sandybridge -mtune=sandybridge -fopenmp -mfpmath=sse -pipe -fno-strict-aliasing -fomit-frame-pointer -finline-functions -finline-limit=60 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=6 -D_FORTIFY_SOURCE=2 -Wstack-protector -Wformat -Werror=format-security -Ofast -ffast-math -funsafe-math-optimizations -funroll-loops -funswitch-loops -Wno-pointer-sign -minline-all-stringops -flto -fuse-ld=gold -fuse-linker-plugin' --extra-ldflags='-I/usr/local/x264 -L/usr/local/x264 -ldl -Wl,-z,now -Wl,-z,relro,-z,noexecstack,-fuse-ld=gold -m64 -O2 -g0 -march=sandybridge -mtune=sandybridge -fopenmp -mfpmath=sse -pipe -fno-strict-aliasing -fomit-frame-pointer -finline-functions -finline-limit=60 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=6 -D_FORTIFY_SOURCE=2 -Wstack-protector -Wformat -Werror=format-security -Ofast -ffast-math -funsafe-math-optimizations -funroll-loops -funswitch-loops -Wno-pointer-sign -minline-all-stringops -flto -fuse-ld=gold -fuse-linker-plugin' --enable-pic --enable-lto --ar=gcc-ar --ranlib=true --enable-nonfree --enable-gpl --enable-version3 --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-libvpx --enable-openssl --enable-static --enable-runtime-cpudetect --enable-bzlib --enable-zlib --disable-amd3dnow --disable-amd3dnowext --disable-avdevice --disable-debug --disable-devices --disable-ffplay --disable-ffprobe --disable-ffserver --disable-htmlpages --disable-hwaccels --disable-iconv --disable-libdc1394 --disable-libfaac --disable-libfreetype --disable-libgsm --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libopencv --disable-libopenjpeg --disable-libopus --disable-librtmp --disable-libschroedinger --disable-libspeex --disable-libvorbis --disable-libxvid --disable-podpages --disable-postproc --disable-protocol=gopher --disable-shared --disable-txtpages
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavfilter 5. 40.101 / 5. 40.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test':
Metadata:
major_brand : M4V
minor_version : 512
compatible_brands: isomiso2avc1
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.31.0
Duration: 00:06:06.16, start: 0.000000, bitrate: 642 kb/s
Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 /
0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 512 kb/s, 25 fps, 25
tbr, 25 tbn, 50 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 127 kb/s (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
At least one output file must be specified
signature.asc
Description: OpenPGP digital signature
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