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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 (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (9758)

  • Compile the GPU version of FFMPEG on OpenCV

    22 juin 2018, par Dyex719

    When I try to use GPU
    FFMPEG on opencv by using a command like :

    VideoCapture cap("rtsp link");
    

    
for(;;)
    
{
    
mat frame;
    
cap>>frame;
    
}

    I don’t see any output on nvidia-smi despite compiling the GPU version of FFMPEG.

    I am trying to get FFMPEG to use GPU to improve the speed of my program. I got FFMPEG from cloning https://git.ffmpeg.org/ffmpeg.git and followed the steps here https://developer.nvidia.com/ffmpeg to get it working.

    I have validated the results using nvidia-smi dmon -i 0 and have seen that dec% increases when I run the command ffmpeg -c:v h264_cuvid -i test_video.mp4 test_output.mkv.

    I then compiled Opencv to use the GPU enabled FFMPEG, I check this by running getBuildInformation from opencv :

    Video I/O:
    DC1394 1.x: NO
    DC1394 2.x: YES (ver 2.2.4)
    FFMPEG: YES
    codec: YES (ver 58.20.103)
    format: YES (ver 58.17.100)
    util: YES (ver 56.18.102)
    swscale: YES (ver 5.2.100)
    resample: NO
    gentoo-style: YES
    GStreamer: NO
    OpenNI: NO
    OpenNI PrimeSensor Modules: NO
    OpenNI2: NO
    PvAPI: NO
    GigEVisionSDK: NO
    UniCap: NO
    UniCap ucil: NO
    V4L/V4L2: NO/YES
    XIMEA: NO
    Xine: NO
    gPhoto2: NO

    I cross-verify that I’m using the same ffmpeg (by checking the version numbers) :

    ffmpeg version N-91273-g67747c8 Copyright (c) 2000-2018 the FFmpeg developers
     built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609
     configuration: --enable-cuda --enable-cuvid --enable-nvenc --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
     libavutil      56. 18.102 / 56. 18.102
     libavcodec     58. 20.101 / 58. 20.101
     libavformat    58. 17.100 / 58. 17.100
     libavdevice    58.  4.101 / 58.  4.101
     libavfilter     7. 25.100 /  7. 25.100
     libswscale      5.  2.100 /  5.  2.100
     libswresample   3.  2.100 /  3.  2.100

    Please advise me on how I should compile OpenCV to use the GPU version of FFMPEG. Thank you !

  • FFmpeg android - Fontconfig error : Cannot load default config file

    14 janvier 2019, par Linda Thomas

    I am trying to add text over video using ffmpeg in android by

    "-i", "/storage/emulated/0/videoplayback.mp4", "-vf","drawtext=fontfile=file:///android_asset/fonts/georgia.ttf:text='Text_to_write':fontsize=20:x=100:y=100","-codec:a", "copy", newVideoPath

    and it showing the error log as

    ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg
    
developers
    
built with gcc 4.9.x (GCC) 20150123 (prerelease)
    
configuration: --target-os=linux --cross-prefix=/root/bravobit/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi-
    
--arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/root/bravobit/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-ffprobe --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-libvpx --enable-libass --enable-yasm --enable-pthreads --disable-debug --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-linux-perf --disable-doc --disable-shared --enable-static --enable-runtime-cpudetect --enable-nonfree --enable-network --enable-avresample --enable-avformat --enable-avcodec --enable-indev=lavfi --enable-hwaccels --enable-ffmpeg --enable-zlib --enable-gpl --enable-small --enable-nonfree --pkg-config=pkg-config --pkg-config-flags=--static --prefix=/root/bravobit/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/root/bravobit/ffmpeg-android/toolchain-android/include
    
-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/root/bravobit/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-cxxflags=
    
libavutil56. 14.100 / 56. 14.100
    
libavcodec     58. 18.100 / 58. 18.100
    
libavformat    58. 12.100 / 58. 12.100
    
libavdevice    58.  3.100 / 58.  3.100
    
libavfilter     7. 16.100 /  7. 16.100
    
libavresample   4.  0.  0 /  4.  0.  0
    
libswscale5.  1.100 /  5.  1.100
    
libswresample   3.  1.100 /  3.  1.100
    
libpostproc    55.  1.100 / 55.  1.100
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/videoplayback.mp4':
    
Metadata:
    
  major_brand     : mp42
    
  minor_version   : 0
    
  compatible_brands: isommp42
    
  creation_time   : 2018-05-19T10:21:06.000000Z
    
Duration: 00:00:27.07, start: 0.000000, bitrate: 730 kb/s
    
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 639 kb/s, 29.83 fps, 29.83 tbr,
    
29827 tbn, 59.65 tbc (default)
    
  Metadata:
    
    creation_time   : 2018-05-19T10:21:06.000000Z
    
    handler_name    : ISO Media file produced by Google Inc. Created on: 05/19/2018.
    
  Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s (default)
    
  Metadata:
    
    creation_time   : 2018-05-19T10:21:06.000000Z
    
    handler_name    : ISO Media file produced by Google Inc. Created on: 05/19/2018.
    
    Stream mapping:
    
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Stream #0:1 -> #0:1 (copy)
    
    Press [q] to stop, [?] for help
    
    Fontconfig error: Cannot load default config file
    
    [Parsed_drawtext_0 @ 0xb7af4560] impossible to init fontconfig
    
    [AVFilterGraph @ 0xb7af3870] Error initializing filter 'drawtext' with args
    
'fontfile=file:///android_asset/fonts/georgia.ttf:text=Text_to_write:fontsize=20:x=100:y=100'
    
    Error reinitializing filters!
    
    Failed to inject frame into filter network: Unknown error occurred
    
    Error while processing the decoded data for stream #0:0
    
    Conversion failed!

  • How to encode HEVC tile in JPEG ?

    3 juillet 2018, par Ketan Chauhan

    I am trying to convert HEIF file into a JPEG file, I extract HEIC images tiles using MP4Box but when convert these tiles into JPEG using FFMPEG I get this :

    SAKATA-INX:desktop stellar$ MP4Box -dump-item 1:path=item1.hevc
    still_rear.HEIC

    ICC colour profile not supported ICC colour profile not supported

    SAKATA-INX:desktop stellar$ ffmpeg -i item1.hevc -frames:v 1 -vsync
    vfr -q:v 1 -an test.jpg

    ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers built
    with Apple LLVM version 9.1.0 (clang-902.0.39.1)

    configuration : —prefix=/usr/local/Cellar/ffmpeg/4.0 —enable-shared
    —enable-pthreads —enable-version3 —enable-hardcoded-tables —enable-avresample —cc=clang —host-cflags= —host-ldflags= —enable-gpl —enable-libmp3lame —enable-libx264 —enable-libx265 —enable-libxvid —enable-opencl —enable-videotoolbox —disable-lzma

    libavutil 56. 14.100 / 56. 14.100

    libavcodec 58. 18.100 / 58. 18.100

    libavformat 58. 12.100 / 58. 12.100

    libavdevice 58. 3.100 / 58. 3.100

    libavfilter 7. 16.100 / 7. 16.100

    libavresample 4. 0. 0 / 4. 0. 0

    libswscale 5. 1.100 / 5. 1.100

    libswresample 3. 1.100 / 3. 1.100

    libpostproc 55. 1.100 / 55. 1.100

    [hevc @ 0x7fc56e808e00] Format hevc detected only with low score of 1,
    misdetection possible !

    [hevc @ 0x7fc56f800000] No start code is found.

    [hevc @ 0x7fc56f800000] missing picture in access unit

    [AVBSFContext @ 0x7fc56e505e00] No start code is found.

    item1.hevc : could not find codec parameters

    Input #0, hevc, from ’item1.hevc’ :

    Duration : N/A, bitrate : N/A

    Stream #0:0: Video: hevc, none, 1200k tbn

    Output #0, image2, to ’test.jpg’ :

    Output file #0 does not contain any stream

    Could any one tell me how I can do this ?

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