Recherche avancée

Médias (1)

Mot : - Tags -/ogg

Autres articles (46)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • 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 (6910)

  • 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 !

Navigation