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  • Initialisation de MediaSPIP (préconfiguration)

    20 février 2010, par

    Lors de l’installation de MediaSPIP, celui-ci est préconfiguré pour les usages les plus fréquents.
    Cette préconfiguration est réalisée par un plugin activé par défaut et non désactivable appelé MediaSPIP Init.
    Ce plugin sert à préconfigurer de manière correcte chaque instance de MediaSPIP. Il doit donc être placé dans le dossier plugins-dist/ du site ou de la ferme pour être installé par défaut avant de pouvoir utiliser le site.
    Dans un premier temps il active ou désactive des options de SPIP qui ne le (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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 (...)

Sur d’autres sites (3805)

  • FFMPEG format settings for android

    24 juillet 2016, par Jemil Riahi
    String[] args = {
    
          "-i" ,
    
          path,
    
          "-codec:v",
    
          "libx264",
    
          "-profile:v",
    
          "high",
    
          "-preset",
    
          "slow",
    
          "-b:v",
    
          "500k",
    
          "-maxrate",
    
          "500k",
    
          "-bufsize",
    
          "1000k",
    
          "-vf",
    
          "scale=-1:480",
    
          "-threads",
    
          "0",
    
          "/storage/emulated/0/Download/testing.mp4"
    
};

    This is the format i am going for. It works fine on some videos. But it failed on one.

    Error code (Dont know why it is so tabbed out)

    configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
    libavutil      55. 17.103 / 55. 17.103
    
    libavcodec     57. 24.102 / 57. 24.102
    
    libavformat    57. 25.100 / 57. 25.100
    
    libavdevice    57.  0.101 / 57.  0.101
    
    libavfilter     6. 31.100 /  6. 31.100
    
    libswscale      4.  0.100 /  4.  0.100
    
    libswresample   2.  0.101 /  2.  0.101
    
    libpostproc    54.  0.100 / 54.  0.100
    
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Download/big_buck_bunny_720p_50mb.mp4':
    
    Metadata:
    
      major_brand     : isom
    
      minor_version   : 512
    
      compatible_brands: isomiso2avc1mp41
    
      creation_time   : 1970-01-01 00:00:00
    
      encoder         : Lavf53.24.2
    
    Duration: 00:04:41.90, start: 0.000000, bitrate: 1488 kb/s
    
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1100 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
      Metadata:
    
        creation_time   : 1970-01-01 00:00:00
    
        handler_name    : VideoHandler
    
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
    
      Metadata:
    
        creation_time   : 1970-01-01 00:00:00
    
        handler_name    : SoundHandler
    
  [libx264 @ 0xf70c4800] width not divisible by 2 (853x480)
    
  Output #0, mp4, to '/storage/emulated/0/Download/testing.mp4':
    
    Metadata:
    
      major_brand     : isom
    
      minor_version   : 512
    
      compatible_brands: isomiso2avc1mp41
    
      encoder         : Lavf53.24.2
    
      Stream #0:0(und): Video: h264, none, q=2-31, 128 kb/s, SAR 2560:2559 DAR 0:0, 25 fps (default)
    
      Metadata:
    
        creation_time   : 1970-01-01 00:00:00
    
        handler_name    : VideoHandler
    
        encoder         : Lavc57.24.102 libx264
    
      Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default)
    
      Metadata:
    
        creation_time   : 1970-01-01 00:00:00
    
        handler_name    : SoundHandler
    
        encoder         : Lavc57.24.102 aac
    
  Stream mapping:
    
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    As i got it. It complains that [libx264 @ 0xf70c4800] width not divisible by 2 (853x480) I have no idea how to fix this issue so that every video can work.

    The inspiration i got for my format settings comes from :
    https://www.virag.si/2012/01/web-video-encoding-tutorial-with-ffmpeg-0-9/

    Does anyone have any tips on what i should do to fix this.

  • unsynchronized graph when h264 stream pause

    24 septembre 2016, par jorp

    Steps to reproduce :

    1.Connect android device to linux PC via USB.

    2.Run command on pc :
    adb shell screenrecord --output-format=h264 - | ffplay -analyzeduration 1 -

    3.Screenrecord(an Android system tool) will start to capture Android screen, encode by MediaCodec, generate h264 stream, send stream data to ffplay via pipe.

    4.PC will pop up ffplay window, and start display Android screen graphs

    If adb command runs when Android screen graph keeps static (no pixel color changes), ffplay window won’t pop up, until I touch somewhere to make Android graph changes.

    Question 1 : how to make ffplay to immidiately display the first frame of video when Android screen keeps static and adb commmand runs ?

    I’m not talking about "latency", if Android graph keeps changing, the graphic latency is within 2 second. It’s fast enough.

    when Android graph is static, run command without ffplay :
    adb shell screenrecord --output-format=h264 -

    screenrecord will output H264 stream data immidiately then pause.(See picture below).
    stream data comes first

    Does the data contain all information of first frame graph ?
    If so, how to make ffplay to display it immidiately ?

    Question 2 : how to make ffplay to immidiately display the latest frame of video when Android screen suddenly become static ?

    When Android screen start casting and Android graph suddenly become static, H264 data stream transfer will pause, while PC graph is different with Android graph.

    For example, I make a popup menu on Android disappear, there has been a fadeoff animation, PC graph pauses and display a translucent popup menu.(See picture below)

    latest graph on pc

    The first and latest frames of stream doesn’t display in ffplay immidiately, they are "missing".
    when Android screen go on changing, the "missing" frames displays.
    So it seems like the latest frames are always in buffer.

    I’ve tried adding these params to ffplay :

    -noinfbuf
    -fflags nobuffer
    -max_delay 0
    -sync ext
    -preset ultrafast
    -tune zerolatency


    They cannot solve the problems

    Modifing Android ROM or screenrecord source, making a pixel color changes every frame, may solve the problems(I guess), but it would enlarge data stream, it’s the last choise.
    Is there any solution by adding params of ffplay, or by modifing screenrecord or ffplay source code ?

    PS : mplayer also has the same problem :
    mplayer -demuxer h264es -

  • FFMPEG resizing ouputs 0B file

    26 octobre 2016, par Rahul Kumar

    I am trying to resize a .mp4 file to different resolutions.
    This is the command I’m using :

    /c E:\videos\manage\ffmpeg.exe -i "E:\media\SampleVideo1280x7201mb.mp4" -s 800x600 -ar 22050 "E:\media\encoded\med_SampleVideo1280x7201mb.mp4" 2>&1

    This works for most of the files but for some input files, the file that outputs is 0B in size and This is the message I get :

    ffmpeg version N-69422-gf5722ba Copyright (c) 2000-2015 the FFmpeg developers built on Jan 30 2015 22:13:10 with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 18.100 / 54. 18.100 libavcodec 56. 21.101 / 56. 21.101 libavformat 56. 19.100 / 56. 19.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 9.102 / 5. 9.102 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\media\SampleVideo1280x7201mb.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 1970-01-01 00:00:00 encoder : Lavf53.24.2 Duration: 00:00:05.31, start: 0.000000, bitrate: 1589 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1205 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 384 kb/s (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler [libx264 @ 00000000036e00a0] using SAR=4/3 [libx264 @ 00000000036e00a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 00000000036e00a0] profile High, level 3.1 [libx264 @ 00000000036e00a0] 264 - core 144 r2525 40bb568 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=36 lookahead_threads=4 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=25 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 [libvo_aacenc @ 0000000002cca5c0] Unable to set encoding parameters Output #0, mp4, to 'E:\media\encoded\med_SampleVideo1280x7201mb.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf53.24.2 Stream #0:0(und): Video: h264 (libx264), yuv420p, 800x600 [SAR 4:3 DAR 16:9], q=-1--1, 25 fps, 25 tbn, 25 tbc (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler encoder : Lavc56.21.101 libx264 Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default) Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler encoder : Lavc56.21.101 libvo_aacenc Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc)) Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    What am I doing wrong ? How do I fix this ?

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