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  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

  • 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 : (...)

Sur d’autres sites (6957)

  • Complie FFMpeg with Xcode5 preview's clang

    2 août 2013, par Yeung

    With release of IOS7 beta, I would like to try compiling ffmpeg for ios7.

    There is a lots answer like this. It use the llvm-gcc as compiler.

    However, seem like Xcode 5 would not include llvm-gcc. Then I have no choice but to use clang to compile.

    I use the following to config :

    export IOS_SDK="/Applications/Xcode5-DP4.app/Contents/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk"
    

    
./configure $CONFIG_DISABLE_FLAG $CONFIG_ENABLE_FLAG \
    
--arch=arm \
    
--target-os=darwin \
    
--cc=/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang \
    
--as='gas-preprocessor.pl /Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang' \
    
--ar=/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar  \
    
--sysroot=$IOS_SDK \
    
--cpu=cortex-a8 \
    
--extra-cflags="-arch armv7 -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot ${IOS_SDK} -I${IOS_SDK}/usr/include" \
    
--extra-ldflags="-arch armv7 -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot ${IOS_SDK} -L${IOS_SDK}/usr/lib" \
    
--enable-pic

    clang would probably not take CFLAGS other than -arch  -isysroot -I into account, but let it be.

    I seems it can complie but I encounter this. Actually, I don't understand the answer in this question. Using the external assembler ? Yes, the toolchains do have a assembler stated it is GNU version 1.38. Using --as=/Application/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as, it even cannot pass the check as test. It fall back to use 'gas-preprocessor.pl $CC'

    Here is the config log to cannot pass :

        check_asm armv6t2 "movt r0, #0"
    
check_as
    
BEGIN /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
    1   void foo(void){ __asm__ volatile("movt r0, #0"); }
    
END /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as --sysroot=/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -arch armv7 -no-cpp-precomp -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot /Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -I/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include -mcpu=cortex-a8 -fPIC -c -o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.g896h4Sb.o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
FATAL:/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../libexec/as/arm/as: I don't understand '-' flag!
    
check_asm armvfp "fadds s0, s0, s0"
    
check_as
    
BEGIN /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
    1   void foo(void){ __asm__ volatile("fadds s0, s0, s0"); }
    
END /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as --sysroot=/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -arch armv7 -no-cpp-precomp -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot /Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -I/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include -mcpu=cortex-a8 -fPIC -c -o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.g896h4Sb.o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
FATAL:/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../libexec/as/arm/as: I don't understand '-' flag!
    
check_asm neon "vadd.i16 q0, q0, q0"
    
check_as
    
BEGIN /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
    1   void foo(void){ __asm__ volatile("vadd.i16 q0, q0, q0"); }
    
END /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as --sysroot=/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -arch armv7 -no-cpp-precomp -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot /Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -I/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include -mcpu=cortex-a8 -fPIC -c -o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.g896h4Sb.o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
FATAL:/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../libexec/as/arm/as: I don't understand '-' flag!
    
check_asm vfpv3 "vmov.f32 s0, #1.0"
    
check_as
    
BEGIN /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
    1   void foo(void){ __asm__ volatile("vmov.f32 s0, #1.0"); }
    
END /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as --sysroot=/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -arch armv7 -no-cpp-precomp -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot /Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -I/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include -mcpu=cortex-a8 -fPIC -c -o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.g896h4Sb.o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
FATAL:/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../libexec/as/arm/as: I don't understand '-' flag!
    
check_asm asm_mod_y "vmul.i32 d0, d0, %y0" :: "x"(0)
    
check_as
    
BEGIN /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
    1   void foo(void){ __asm__ volatile("vmul.i32 d0, d0, %y0" :: "x"(0)); }
    
END /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/as --sysroot=/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -arch armv7 -no-cpp-precomp -mfpu=neon -mfloat-abi=softfp -ftree-vectorize -ffast-math -funsafe-math-optimizations -fsingle-precision-constant -isysroot /Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -I/Applications/Xcode5-DP4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include -mcpu=cortex-a8 -fPIC -c -o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.g896h4Sb.o /var/folders/gx/_k242p6s5cb0hss_pvj4s7vh0000gn/T//ffconf.4wwSSmLm.c
    
FATAL:/Applications/Xcode5-DP4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../libexec/as/arm/as: I don't understand '-' flag!
    
check_asm gnu_as ".macro m n
    
\n:.int 0
    
.endm
    
m x"

    Yep, with config --disable-asm would complie but it probably not a option.

  • avconv : improve some variable names

    14 juin 2013, par Anton Khirnov
    avconv : improve some variable names

    ’filter’ is too generic, since the functions in question deal with
    
several filters.
    

    Also add const qualifiers to those variables.
    • [DH] avconv_filter.c

  • FFMPEG to remote server : Live streaming with segments [migrated]

    10 août 2013, par Brianjs

    I have looked around and have found many good articles on how to use ffmpeg to segment live video for HLS streaming. However, I need to be able to use use an encoder from a remote location (that is receiving live video), and then somehow send these segmented files and the m3u8/ts files to a web server in a different location, in real time.

    So :
    REMOTE COMPUTER(camera->ffmpeg->segmenter) -> WEBSERVER(receives files -> users connect for "live" stream)

    My question is : Has anyone seen something similar to this ? Or is there a setting on ffmpeg/ffserver that will let me do this ?

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