[FFmpeg-user] Unknown type video file

[Reindl Harald]

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 at srv-rhsoft:/downloads]$ file --mime-type test
test: video/x-m4v

[harry at 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

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