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  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

Sur d’autres sites (5244)

  • How to Compile FFmpeg with x264 and libfdk-aac for Android

    12 novembre 2016, par Codeveloper

    Everyone.

    Please understand that i use the wrong english.

    I want to make encoding application using FFmpeg.

    I was successfully building NDK with FFmpeg.

    However, to encode H.264 video made had failed( Codec not found.. ).

    I was learned that libx264 is need encode H.264 and libfdk-aac is need encode AAC.

    so I tried to build the libx264 and libfdk-aac, But does not easily cross-compile.

    Please tell me what I did wrong.

    My Development Environment

    OS : ubuntu 13.10 64bit

    NDK : android-ndk-r9

    FFmpeg : ffmpeg-2.0.2

    x264 build : build_x264_android.sh

    NDK=$ANDROID_NDK_HOME
    

    
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
    
PLATFORM=$NDK/platforms/android-9/arch-arm
    
CPU=arm
    
PREFIX=$NDK/sources/ffmpeg-2.0.2/android/$CPU
    

    
./configure --prefix=$PREFIX \
    
    --enable-shared \
    
    --enable-pic \
    
    --disable-asm \
    
    --disable-cli \
    
    --host=arm-linux \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --sysroot=$PLATFORM
    

    
make
    
make install
    
ldconfig

    fdk-aac build : build_aac_android.sh

    NDK=$ANDROID_NDK_HOME
    
CROSS_PREFIX=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-
    
PLATFORM=$NDK/platforms/android-9/arch-arm
    
CPU=arm
    
PREFIX=$NDK/sources/ffmpeg-2.0.2/android/$CPU
    
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a -mthumb -D__thumb__"
    

    
./configure --prefix=$PREFIX \
    
    --with-sysroot=$PLATFORM \
    
    --host=arm-linux \
    
    --enable-shared \
    
    --with-pic=no \
    
    CC="${CROSS_PREFIX}gcc --sysroot=$PLATFORM" \
    
    CXX="${CROSS_PREFIX}g++ --sysroot=$PLATFORM" \
    
    RANLIB="${CROSS_PREFIX}ranlib" \
    
    AR="${CROSS_PREFIX}ar" \
    
    STRIP="${CROSS_PREFIX}strip" \
    
    NM="${CROSS_PREFIX}nm" \
    
    CFLAGS="-O3 $OPTIMIZE_CFLAGS --sysroot=$PLATFORM" \
    
    CXXFLAGS="-O3 $OPTIMIZE_CFLAGS --sysroot=$PLATFORM"
    

    
make
    
make install

    When I run ’build_aac_android.sh’, shown error.

    log in config.log

    configure:2907: checking for arm-linux-gcc
    
configure:2934: result: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm
    
configure:3203: checking for C compiler version
    
configure:3212: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm --version >&5
    
./configure: line 3214: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: No such file or directory
    
configure:3223: $? = 127
    
configure:3212: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm -v >&5
    
./configure: line 3214: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: No such file or directory
    
configure:3223: $? = 127
    
configure:3212: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm -V >&5
    
./configure: line 3214: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: No such file or directory
    
configure:3223: $? = 127
    
configure:3212: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm -qversion >&5
    
./configure: line 3214: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: No such file or directory
    
configure:3223: $? = 127
    
configure:3243: checking whether the C compiler works
    
configure:3265: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/platforms/android-9/arch-arm -O3 -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a -mthumb -D__thumb__ --sysroot=/platforms/android-9/arch-arm   conftest.c  >&5
    
./configure: line 3267: /toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc: No such file or directory
    

    
configure:3312: error: in `/home/nel/android-ndk-r9/sources/ffmpeg-2.0.2/libfdk-aac':
    
    configure:3314: error: C compiler cannot create executables
    
    See `config.log' for more details

    I cannot understand that error !! I was confirmed that arm-linux-androideabi-gcc is found in the directory..

    I want to borrow you wisdom. Please tell me how to ’ffmpeg+x264+fdk-aac’ build for android.

    Thanks.. :-)

  • .MKV to .MP4 choosing the audio and subtitles ?

    11 décembre 2016, par Leo Letto

    The following stream belongs to a .mkv file with dual audio ;

    Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
    
Stream #0:1(eng): Audio: mp3, 48000 Hz, stereo, s16p, 256 kb/s (default)
    
Stream #0:2(por): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    
Stream #0:3(eng): Subtitle: ass (default)

    Which ffmpeg command should I use to create an output with the language in Portuguese, already with the English subtitles ?

    I found some commands that can extract the language-based caption that I specify, but I didn’t find anything related to selecting the audio type.

    This is the entire output from ffmpeg :

    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --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      55. 41.101 / 55. 41.101
    
  libavcodec     57. 66.108 / 57. 66.108
    
  libavformat    57. 58.101 / 57. 58.101
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 67.100 /  6. 67.100
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Input #0, matroska,webm, from 'mydualmkv.mkv':
    
  Metadata:
    
    title           : Avidemux
    
    encoder         : libebml v1.2.3 + libmatroska v1.3.0
    
    creation_time   : 2015-08-04T15:25:49.000000Z
    
  Duration: 00:23:37.44, start: 0.000000, bitrate: 1908 kb/s
    
    Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc (default)
    
    Stream #0:1(eng): Audio: mp3, 48000 Hz, stereo, s16p, 256 kb/s (default)
    
    Stream #0:2(pot): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    
    Stream #0:3(eng): Subtitle: ass (default)
    
[mp4 @ 0000000000c36700] track 1: codec frame size is not set
    
Output #0, mp4, to 'path-to-output.mp4':
    
  Metadata:
    
    title           : Avidemux
    
    encoder         : Lavf57.58.101
    
    Stream #0:0: Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p(progressive), 1280x960 [SAR 1:1 DAR 4:3], q=2-31, 29.97 fps, 29.97 tbr, 16k tbn, 1k tbc (default)
    
    Stream #0:1(por): Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, stereo, fltp, 192 kb/s
    
    Stream #0:2(eng): Subtitle: mov_text ([8][0][0][0] / 0x0008) (default)
    
    Metadata:
    
      encoder         : Lavc57.66.108 mov_text
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:2 -> #0:1 (copy)
    
  Stream #0:3 -> #0:2 (ass (ssa) -> mov_text (native))
    
Press [q] to stop, [?] for help
    
frame= 5451 fps=0.0 q=-1.0 size=   39273kB time=00:03:01.89 bitrate=1768.7kbits/s speed= 363x    
    
frame=11708 fps=11695 q=-1.0 size=   79743kB time=00:06:30.62 bitrate=1672.3kbits/s speed= 390x    
    
frame=17902 fps=11926 q=-1.0 size=  122134kB time=00:09:57.60 bitrate=1674.2kbits/s speed= 398x    
    
frame=24717 fps=12352 q=-1.0 size=  166885kB time=00:13:44.83 bitrate=1657.4kbits/s speed= 412x    
    
frame=31995 fps=12792 q=-1.0 size=  211010kB time=00:17:47.74 bitrate=1618.9kbits/s speed= 427x    
    
frame=38979 fps=12988 q=-1.0 size=  260758kB time=00:21:40.64 bitrate=1642.4kbits/s speed= 433x    
    
frame=42478 fps=13076 q=-1.0 Lsize=  286844kB time=00:23:37.31 bitrate=1657.9kbits/s speed= 436x    
    
video:252490kB audio:33218kB subtitle:11kB other streams:0kB global headers:0kB muxing overhead: 0.393387%

  • FFMPEG is really slow at extracting subtitles

    3 mars 2021, par Gustav P Svensson

    I'm trying to extract the subtitles from a 1080P video, around 40min long. I'm currently using this command (using fluent-ffmpeg in node, but the translated command is this) :

    


    ffmpeg -threads 3  -map 0: -c copy 


    


    This command takes about 20-30 min to complete. I've searched quite a lot on how to speed up this process, if I look at my task manager I can see that ffmpeg is using 0.1% of the CPU which makes me think that it's possible to speed up this process.

    


    I'm not sure if the -threads option is actually doing anything when extracting subtitles but I don't think it should make it slower atleast ?

    


    So my question is, is it possible to speed up this process ? I appriciate any help.

    


    Full FFMPEG log:
fmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, matroska,webm, from '/home/test.mkv:
  Metadata:
    encoder         : libebml v1.3.6 + libmatroska v1.4.9
    creation_time   : 2019-03-14T16:46:55.000000Z
  Duration: 00:41:20.29, start: 0.000000, bitrate: 6430 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS-eng         : 5788926
      DURATION-eng    : 00:41:20.020000000
      NUMBER_OF_FRAMES-eng: 59461
      NUMBER_OF_BYTES-eng: 1794581562
      _STATISTICS_WRITING_APP-eng: mkvmerge v31.0.0 ('Dolores In A Shoestand') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2019-03-14 16:46:55
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
    Metadata:
      title           : English
      BPS-eng         : 640000
      DURATION-eng    : 00:41:20.288000000
      NUMBER_OF_FRAMES-eng: 77509
      NUMBER_OF_BYTES-eng: 198423040
      _STATISTICS_WRITING_APP-eng: mkvmerge v31.0.0 ('Dolores In A Shoestand') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2019-03-14 16:46:55
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS-eng         : 80
      DURATION-eng    : 00:40:22.295000000
      NUMBER_OF_FRAMES-eng: 645
      NUMBER_OF_BYTES-eng: 24473
      _STATISTICS_WRITING_APP-eng: mkvmerge v31.0.0 ('Dolores In A Shoestand') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2019-03-14 16:46:55
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(eng): Subtitle: subrip
    Metadata:
      title           : SDH
      BPS-eng         : 86
      DURATION-eng    : 00:40:31.012000000
      NUMBER_OF_FRAMES-eng: 709
      NUMBER_OF_BYTES-eng: 26142
      _STATISTICS_WRITING_APP-eng: mkvmerge v31.0.0 ('Dolores In A Shoestand') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2019-03-14 16:46:55
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Output #0, srt, to 'test6.srt':
  Metadata:
    encoder         : Lavf57.83.100
    Stream #0:0(eng): Subtitle: subrip
    Metadata:
      BPS-eng         : 80
      DURATION-eng    : 00:40:22.295000000
      NUMBER_OF_FRAMES-eng: 645
      NUMBER_OF_BYTES-eng: 24473
      _STATISTICS_WRITING_APP-eng: mkvmerge v31.0.0 ('Dolores In A Shoestand') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2019-03-14 16:46:55
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
  Stream #0:2 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=      46kB time=00:40:36.68 bitrate=   0.2kbits/s speed=11.6x    
video:0kB audio:0kB subtitle:24kB other streams:0kB global headers:0kB muxing overhead: 94.438766%


    


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