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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

Sur d’autres sites (5940)

  • Stream .mov to .flv with ffmpeg

    30 mars 2018, par Wise Colt

    When I run the following code, the flv file is being created. But it does not play. (File size 0 kB)

    var ffmpeg = require('fluent-ffmpeg');
    var fs = require('fs');

    var write = fs.createWriteStream('output.flv');
    var stream = fs.createReadStream('video.mov');

    ffmpeg(stream).format('flv').pipe(write, {end: true});

    It works when I change the code like this :

    var ffmpeg = require('fluent-ffmpeg');
    var fs = require('fs');

    var write = fs.createWriteStream('output.flv');

    ffmpeg('video.mov').format('flv').pipe(write, {end: true});

    I’m looking for a way to convert a .mov file to a .flv file using ffmpeg and createReadStream. Support.

    Notes : .mov files created with iPhone / iPad

  • Cannot use Mobile FFmpeg and LibVLCSharp together in Xamarin.Forms project

    26 février 2021, par Travis P

    I am adding video stream capture functionality to a Xamarin Forms project. I am trying to use VLC's LibVLCSharp.Forms (https://github.com/videolan/libvlcsharp) package and the Mobile ffmpeg Xamarin wrapper package, Laerdal.Xamarin.FFmpeg.* (https://github.com/Laerdal/Laerdal.Xamarin.FFmpeg.iOS). However, the internal ffmpeg library from VLC is conflicting with the ffmpeg wrapper and is built with different flags which exclude functionality that I need.

    


    For native development, it looks like you can configure a preferred library with the OTHER_LDFLAGS flag in the Pods-<your app="app">.debug.xcconfig</your> file but I don't see where to do that with Xamarin.Forms.&#xA;Source : https://github.com/tanersener/mobile-ffmpeg/wiki/Using-Multiple-FFmpeg-Implementations-In-The-Same-iOS-Application

    &#xA;

    How can I configure Xamarin iOS builds to prefer the mobile ffmpeg library over the VLC ffmpeg library ? If I am able to use the mobile ffmpeg library, will it cause issues with VLC ?

    &#xA;

    Here is a log message when I try to run commands with ffmpeg. As you can see, ffmpeg's internal library paths reference "vlc" :

    &#xA;

    FFmpegExecute: Command: -vsync 1 -i &#x27;rtsp://wowzaec2demo.streamlock.net/vod/mp4:bigbuckbunny_115k.mov&#x27; -force_key_frames "expr: gte(t, n_forced * 2)" -strict experimental -f segment -segment_time 00:00:02 -segment_start_number 0 -reset_timestamps 1 -c:v copy -c:a copy &#x27;[path to temp]/tmp/VideoStream/%01d-record-temp.mp4&#x27;&#xA;Loaded mobile-ffmpeg-full-gpl-x86_64-4.4-lts-20200725&#xA;INFO: ffmpeg version v4.4-dev-416&#xA;INFO:  Copyright (c) 2000-2020 the FFmpeg developers&#xA;INFO:&#xA;INFO:   built with Apple LLVM version 7.3.0 (clang-703.0.31)&#xA;INFO:   configuration: --sysroot=/Applications/Xcode-v7.3.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.3.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-x86_64/ffmpeg --enable-version3 --arch=x86_64 --cpu=x86_64 --target-os=darwin --ar=/Applications/Xcode-v7.3.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang&#x2B;&#x2B; --as=&#x27;clang -arch x86_64 -target x86_64-ios-darwin -march=x86-64 -msse4.2 -mpopcnt -m64 -mtune=intel -DMOBILE_FFMPEG_X86_64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -DIOS -DMOBILE_FFMPEG_LTS -DMOBILE_FFMPEG_BUILD_DATE=20200725 -isysroot /Applications/Xcode-v7.3.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.3.sdk -O2 -mios-simulator-version-min=9.3 -I/Applications/Xcode-v7.3.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.3.sdk/usr/include&#x27; --ranlib=/Applications/Xcode-v7.3.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode-v7.3.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --disable-neon --enable-cross-compile --enable-pic --disable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-outdev=audiotoolbox --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-audiotoolbox --enable-bzlib --enable-videotoolbox --disable-avfoundation --enable-iconv --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-audiotoolbox --enable-bzlib --enable-videotoolbox --disable-avfoundation --enable-iconv --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-audiotoolbox --enable-bzlib --enable-videotoolbox --disable-avfoundation --enable-iconv --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-audiotoolbox --enable-bzlib --enable-videotoolbox --disable-avfoundation --enable-iconv&#xA;INFO:   WARNING: library configuration mismatch&#xA;INFO:   avutil      configuration: --extra-ldflags=&#x27;-arch x86_64 -v -Wl,-ios_simulator_version_min,8.4 -L/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/lib -Wl,-ios_simulator_version_min,8.4&#x27; --cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --pkg-config=pkg-config --disable-doc --disable-encoder=vorbis --disable-decoder=opus --enable-libgsm --disable-decoder=mlp --disable-demuxer=mlp --disable-parser=mlp --disable-debug --disable-avdevice --disable-devices --disable-avfilter --disable-filters --disable-protocol=concat --disable-bsfs --disable-bzlib --disable-libvpx --disable-avresample --enable-bsf=vp9_superframe --disable-swresample --disable-iconv --disable-avisynth --disable-nvenc --disable-linux-perf --disable-securetransport --enable-libopenjpeg --enable-libmp3lame --enable-cross-compile --disable-programs --arch=x86_64 --target-os=darwin --disable-lzma --cpu=core2 --enable-pic --extra-ldflags=&#x27;-arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include -g -O2 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include&#x27; --enable-pthreads --nm= --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --prefix=/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64 --enable-static --disable-shared&#xA;INFO:   avcodec     configuration: --extra-ldflags=&#x27;-arch x86_64 -v -Wl,-ios_simulator_version_min,8.4 -L/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/lib -Wl,-ios_simulator_version_min,8.4&#x27; --cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --pkg-config=pkg-config --disable-doc --disable-encoder=vorbis --disable-decoder=opus --enable-libgsm --disable-decoder=mlp --disable-demuxer=mlp --disable-parser=mlp --disable-debug --disable-avdevice --disable-devices --disable-avfilter --disable-filters --disable-protocol=concat --disable-bsfs --disable-bzlib --disable-libvpx --disable-avresample --enable-bsf=vp9_superframe --disable-swresample --disable-iconv --disable-avisynth --disable-nvenc --disable-linux-perf --disable-securetransport --enable-libopenjpeg --enable-libmp3lame --enable-cross-compile --disable-programs --arch=x86_64 --target-os=darwin --disable-lzma --cpu=core2 --enable-pic --extra-ldflags=&#x27;-arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include -g -O2 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include&#x27; --enable-pthreads --nm= --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --prefix=/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64 --enable-static --disable-shared&#xA;INFO:   avformat    configuration: --extra-ldflags=&#x27;-arch x86_64 -v -Wl,-ios_simulator_version_min,8.4 -L/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/lib -Wl,-ios_simulator_version_min,8.4&#x27; --cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --pkg-config=pkg-config --disable-doc --disable-encoder=vorbis --disable-decoder=opus --enable-libgsm --disable-decoder=mlp --disable-demuxer=mlp --disable-parser=mlp --disable-debug --disable-avdevice --disable-devices --disable-avfilter --disable-filters --disable-protocol=concat --disable-bsfs --disable-bzlib --disable-libvpx --disable-avresample --enable-bsf=vp9_superframe --disable-swresample --disable-iconv --disable-avisynth --disable-nvenc --disable-linux-perf --disable-securetransport --enable-libopenjpeg --enable-libmp3lame --enable-cross-compile --disable-programs --arch=x86_64 --target-os=darwin --disable-lzma --cpu=core2 --enable-pic --extra-ldflags=&#x27;-arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include -g -O2 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include&#x27; --enable-pthreads --nm= --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --prefix=/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64 --enable-static --disable-shared&#xA;INFO:   swscale     configuration: --extra-ldflags=&#x27;-arch x86_64 -v -Wl,-ios_simulator_version_min,8.4 -L/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/lib -Wl,-ios_simulator_version_min,8.4&#x27; --cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang --pkg-config=pkg-config --disable-doc --disable-encoder=vorbis --disable-decoder=opus --enable-libgsm --disable-decoder=mlp --disable-demuxer=mlp --disable-parser=mlp --disable-debug --disable-avdevice --disable-devices --disable-avfilter --disable-filters --disable-protocol=concat --disable-bsfs --disable-bzlib --disable-libvpx --disable-avresample --enable-bsf=vp9_superframe --disable-swresample --disable-iconv --disable-avisynth --disable-nvenc --disable-linux-perf --disable-securetransport --enable-libopenjpeg --enable-libmp3lame --enable-cross-compile --disable-programs --arch=x86_64 --target-os=darwin --disable-lzma --cpu=core2 --enable-pic --extra-ldflags=&#x27;-arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -arch x86_64 -miphoneos-version-min=8.4 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -arch x86_64 -O3 -g -miphoneos-version-min=8.4 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include -g -O2 -I/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64/include&#x27; --enable-pthreads --nm= --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --prefix=/Users/Martz/Projects/vlckit/libvlc/vlc/contrib/iPhone-x86_64-apple-darwin14-x86_64 --enable-static --disable-shared&#xA;INFO:   libavutil      56. 55.100 / 56.  5.100&#xA;INFO:   libavcodec     58. 96.100 / 58.  6.103&#xA;INFO:   libavformat    58. 48.100 / 58.  3.100&#xA;INFO:   libavdevice    58. 11.101 / 58. 11.101&#xA;INFO:   libavfilter     7. 87.100 /  7. 87.100&#xA;INFO:   libswscale      5.  8.100 /  5.  0.101&#xA;INFO:   libswresample   3.  8.100 /  3.  8.100&#xA;ERROR: Unrecognized option &#x27;segment_time&#x27;.&#xA;FATAL: Error splitting the argument list:&#xA;FATAL: Option not found&#xA;

    &#xA;

  • ffmpeg does not copy custom metadata

    20 juin 2015, par e110c0

    I’m trying to fix some videos made with an iDevice. The videos have a rotation in the metadata which is only understood by Apple and its software but noone else. Fixing this is quite simple, but I also would like to keep the other metadata in the files like the geolocation.

    I tried a couple of versions, all with the same result, e.g. :

    ffmpeg -i input.mov -vf vflip,hflip -map_metadata 0 -metadata:s:v:0 rotate=0  -acodec copy output.mp4

    This should work, it already gives the correct preview of metadata :

    ffmpeg version 1.1.2 Copyright (c) 2000-2013 the FFmpeg developers
    built on Feb  8 2013 23:55:22 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
    configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
    libavutil      52. 13.100 / 52. 13.100
    libavcodec     54. 86.100 / 54. 86.100
    libavformat    54. 59.106 / 54. 59.106
    libavdevice    54.  3.102 / 54.  3.102
    libavfilter     3. 32.100 /  3. 32.100
    libswscale      2.  1.103 /  2.  1.103
    libswresample   0. 17.102 /  0. 17.102
    libpostproc    52.  2.100 / 52.  2.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2013-02-17 00.39.36.mov':
     Metadata:
       major_brand     : qt  
       minor_version   : 0
       compatible_brands: qt  
       creation_time   : 2013-02-16 23:39:25
       model           : iPhone 5
       model-deu       : iPhone 5
       encoder         : 6.1
       encoder-deu     : 6.1
       date            : 2013-02-17T00:39:25+0100
       date-deu        : 2013-02-17T00:39:25+0100
       location        : +48.2683+007.7205+172.710/
       location-deu    : +48.2683+007.7205+172.710/
       make            : Apple
       make-deu        : Apple
     Duration: 00:00:09.67, start: 0.000000, bitrate: 16764 kb/s
       Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16696 kb/s, 24 fps, 24 tbr, 600 tbn, 1200 tbc
       Metadata:
         rotate          : 180
         creation_time   : 2013-02-16 23:39:25
         handler_name    : Core Media Data Handler
       Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s
       Metadata:
         creation_time   : 2013-02-16 23:39:25
         handler_name    : Core Media Data Handler
    w:1920 h:1080 pixfmt:yuv420p tb:1/600 fr:24/1 sar:0/1 sws_param:flags=2
    [libx264 @ 0x7fc248829a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    [libx264 @ 0x7fc248829a00] profile High, level 4.0
    [libx264 @ 0x7fc248829a00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00

    Output #0, mp4, to 'output.mp4':
    Metadata:
     major_brand     : qt  
     minor_version   : 0
     compatible_brands: qt  
     creation_time   : 2013-02-16 23:39:25
     model           : iPhone 5
     model-deu       : iPhone 5
     encoder-deu     : 6.1
     date            : 2013-02-17T00:39:25+0100
     date-deu        : 2013-02-17T00:39:25+0100
     location        : +48.2683+007.7205+172.710/
     location-deu    : +48.2683+007.7205+172.710/
     make            : Apple
     make-deu        : Apple
     encoder         : Lavf54.59.106
    Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=-1--1, 12288 tbn, 24 tbc
    Metadata:
     handler_name    : Core Media Data Handler
     creation_time   : 2013-02-16 23:39:25
     rotate          : 0
    Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, 61 kb/s
    Metadata:
     creation_time   : 2013-02-16 23:39:25
     handler_name    : Core Media Data Handler
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 -> libx264)
     Stream #0:1 -> #0:1 (copy)

    But the resulting file keeps only some of these metadata tags :

    ffmpeg -i output.mp4

    shows :

    fmpeg version 1.1.2 Copyright (c) 2000-2013 the FFmpeg developers
     built on Feb  8 2013 23:55:22 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
    configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.2 --enable-shared --enable-pthreads -  -enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
    libavutil      52. 13.100 / 52. 13.100
    libavcodec     54. 86.100 / 54. 86.100
    libavformat    54. 59.106 / 54. 59.106
    libavdevice    54.  3.102 / 54.  3.102
    libavfilter     3. 32.100 /  3. 32.100
    libswscale      2.  1.103 /  2.  1.103
    libswresample   0. 17.102 /  0. 17.102
    libpostproc    52.  2.100 / 52.  2.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
    Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2mp41
     creation_time   : 2013-02-16 23:39:25
     date            : 2013-02-17T00:39:25+0100
     encoder         : Lavf54.59.106
    Duration: 00:00:09.67, start: 0.000000, bitrate: 3286 kb/s
     Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3219 kb/s, 24 fps, 24 tbr, 12288 tbn, 24 tbc
     Metadata:
       creation_time   : 2013-02-16 23:39:25
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s
     Metadata:
       creation_time   : 2013-02-16 23:39:25
       handler_name    : SoundHandler

    I also tried to add the one tag I’m interested in by hand with

    -metadata:g location=+48.2683+007.7205+172.710/

    with no change in the result.

    Output as .mov doesn’t change anything, neither.

    Is there any trick to add non-standard metadata ? How do I get the location back in there ?

    Thanks in advance to anyone who can give some insight on this.