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  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • 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 (...)

Sur d’autres sites (9326)

  • compiling ffmpeg 2.3 for android with NDK r10 on windows [duplicate]

    25 août 2014, par L.Grillo

    This question already has an answer here :

    After a week i’m trying to compile ffmpeg for android.
    I can’t find a static build in the entire web exept for https://github.com/guardianproject/android-ffmpeg-java/tree/master/res/raw but is 0.11 version one.

    This is my build.sh

    #!/usr/bin/env bash
    

    
NDK=C:/Android/android-ndk-r10
    
SYSROOT=$NDK/platforms/android-18/arch-arm/
    
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64
    

    
function build_one
    
{
    
./configure \
    
    --arch=arm \
    
    --target-os=linux \
    
    --enable-runtime-cpudetect \
    
    --enable-pic \
    
    --disable-shared \
    
    --enable-static \
    
    --extra-cflags='-march=armv6' \
    
    --extra-ldflags="$ADDI_LDFLAGS" \
    
    --enable-ffmpeg \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --disable-ffserver\
    
    --disable-network \
    
    --enable-cross-compile \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --sysroot=$SYSROOT \
    
    $ADDITIONAL_CONFIGURE_FLAG
    
make clean
    
make -j4
    
make install
    
}
    

    
CPU=arm
    
PREFIX=$(pwd)/android/$CPU
    
ADDI_CFLAGS="-marm"
    

    
build_one

    It seems everything works good except the compilation stopped after 4 files :

    ffmpeg

    It seems to stay here forever. After 4 hours nothing is moving.
    the process "make.exe (32 bit)" is running with 18% of cpu

    Any help will be precious.
    Thank u

  • Reduce compiled ffmpeg library size based on what I need

    20 septembre 2014, par Alin

    I finally managed to build ffmpeg as detailed in here : https://enoent.fr/blog/2014/06/20/compile-ffmpeg-for-android/ and in the end, I have a ffmpeg library which accepts command arguments.

    I am ONLY applying a watermark image over the video so for it I am using this ffmpeg command :

    ffmpeg -i input.avi -i logo.png -filter_complex 'overlay=10:main_h-overlay_h-10' output.avi

    Basic config :

      ./configure \
    
    --prefix=$PREFIX \
    
    --disable-shared \
    
    --enable-static \
    
    --disable-doc \
    
    --disable-ffmpeg \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --disable-ffserver \
    
    --disable-doc \
    
    --disable-symver \
    
    --enable-protocol=concat \
    
    --enable-protocol=file \
    
    --enable-muxer=mp4 \
    
    --enable-demuxer=mpegts \
    
    --enable-memalign-hack \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --target-os=linux \
    
    --arch=arm \
    
    --enable-cross-compile \
    
    --sysroot=$SYSROOT \
    
    --extra-cflags="-Os -fpic -marm $ADDI_CFLAGS" \
    
    --extra-ldflags="$ADDI_LDFLAGS"

    No other commands needed from ffmpeg.

    When compiling ffmpeg I get these files :

    enter image description here

    I want to reduce the size of the library to as small as possible, so given the above command, are there any files that I can remove from final build ?

    ALSO which is the most common CPU found in current devices ? arm v7vfpv3, arm v7vfp, arm v7n ? I want to cover as many devices as possible.

    #arm v6
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-marm -march=$CPU"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7vfpv3
    
CPU=armv7-a
    
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG=
    
build_one
    

    
#arm v7vfp
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU "
    
#PREFIX=./android/$CPU-vfp
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7n
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=neon -marm -march=$CPU -mtune=cortex-a8"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=--enable-neon
    
#build_one
    

    
#arm v6+vfp
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-DCMP_HAVE_VFP -mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU"
    
#PREFIX=./android/${CPU}_vfp 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one

  • Compiling FFmpeg 2.3 with Android NDK r10

    25 juillet 2014, par Robin

    I want to compile FFMpeg 2.3 with Android NDK r10 by following this tutorial : http://www.roman10.net/how-to-build-ffmpeg-for-android/

    After getting several errors i modified the build script like this :

      #!/bin/bash
    
    ######################################################
    
# Usage:
    
# put this script in top of FFmpeg source tree
    
# ./build_android
    
# It generates binary for following architectures:
    
# ARMv6 
    
# ARMv6+VFP 
    
# ARMv7+VFM-ïd16 (Tegra2) 
    
# ARMv7+Neon (Cortex-A8)
    
# Customizing:
    
# 1. Feel free to change ./configure parameters for more features
    
# 2. To adapt other ARM variants
    
# set $CPU and $OPTIMIZE_CFLAGS 
    
# call build_one
    
######################################################
    
NDK=/usr/local/src/android-ndk-r10
    
PLATFORM=$NDK/platforms/android-8/arch-arm/
    
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
    
function build_one
    
{
    
./configure --target-os=linux \
    
    --prefix=$PREFIX \
    
    --enable-cross-compile \
    
    --extra-libs="-lgcc" \
    
    --arch=arm \
    
    --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    
    --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    
    --sysroot=$PLATFORM \
    
    --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS " \
    
    --disable-shared \
    
    --enable-static \
    
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
    
    --disable-everything \
    
    --enable-demuxer=mov \
    
    --enable-demuxer=h264 \
    
    --disable-ffplay \
    
    --enable-protocol=file \
    
    --enable-avformat \
    
    --enable-avcodec \
    
    --enable-decoder=rawvideo \
    
    --enable-decoder=mjpeg \
    
    --enable-decoder=h263 \
    
    --enable-decoder=h265 \
    
    --enable-decoder=mpeg4 \
    
    --enable-decoder=h264 \
    
    --enable-parser=h264 \
    
    --enable-parser=h265
    
    --enabled-network \
    
    --enable-zlib \
    
    --disable-avfilter \
    
    --disable-avdevice \
    
    $ADDITIONAL_CONFIGURE_FLAG
    

    
make clean
    
make  -j4 install
    
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
    
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib  -soname libffmpeg.so -nostdlib,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.8/libgcc.a
    
}
    

    
#arm v6
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-marm -march=$CPU"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7vfpv3
    
CPU=armv7-a
    
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG=
    
build_one
    

    
#arm v7vfp
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU "
    
#PREFIX=./android/$CPU-vfp
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7n
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=neon -marm -march=$CPU -mtune=cortex-a8"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=--enable-neon
    
#build_one
    

    
#arm v6+vfp
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-DCMP_HAVE_VFP -mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU"
    
#PREFIX=./android/${CPU}_vfp 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one

    But unfortunatly I get the following error :

        INSTALL ffmpeg
    
INSTALL ffprobe
    
INSTALL ffserver
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(eventfd.o): multiple definition of 'eventfd'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(eventfd.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__dorand48'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_mult'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_add'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): multiple definition of '__rand48_seed'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(_rand48.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libm.a(s_scalbn.o): multiple definition of 'ldexp'
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: /usr/local/src/android-ndk-r10/platforms/android-8/arch-arm//usr/lib/libc.a(ldexp.o): previous definition here
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -lz
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -ldl
    
/usr/local/src/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld: error: cannot find -llog
    
libavformat/http.c:384: error: undefined reference to 'inflateEnd'
    
libavformat/http.c:385: error: undefined reference to 'inflateInit2_'
    
libavformat/http.c:390: error: undefined reference to 'zlibCompileFlags'
    
libavformat/http.c:1029: error: undefined reference to 'inflateEnd'
    
libavformat/http.c:867: error: undefined reference to 'inflate'
    
libavformat/id3v2.c:840: error: undefined reference to 'uncompress'
    
libavformat/mov.c:2934: error: undefined reference to 'uncompress'
    
bionic/libc/bionic/drand48.c:24: error: undefined reference to '_rand48_seed'
    
bionic/libc/bionic/erand48.c:21: error: undefined reference to '_dorand48'

    Any help would be appreciated. Thank you !

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