Recherche avancée

Médias (1)

Mot : - Tags -/MediaSPIP

Autres articles (90)

  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (9755)

  • Using FFMPEG in a Visual Studio 2013 ultimate project, linking error LNK2019

    27 mars 2015, par Jokke Ruokolainen

    I’m trying to use FFmpeg library and TIFF lib in my project (I’m making a .dll and/or .exe also). I have searched through the answers provided in here and Google, and linked the /dev/include 64-bit (32-bit VS making 64-bit project) to Additional Include Directories and shared/bin (library files) 64-bit to linker->Additional Library Directories and did the Linker->Additional Depedencies->avformat.lib addition. I also copied the .dll files to my project folder, but I still keep getting the LNK2019. Here’s how I use the libs and the output of the compiler :

    extern "C" {
    

    
#ifndef inline
    
#define inline __inline
    
#endif
    
#ifndef UINT64_C
    
#define UINT64_C uint64_t
    
#define INT64_C int64_t
    
#endif
    

    
#include 
    
#include 
    
#include 
    

    
}
    
#pragma comment(lib, "avformat.lib")
    

    
1>------ Build started: Project: GHSOM_V3, Configuration: FFmpeg x64 ------
    
1>  ffmpeg_io.cpp
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_malloc referenced in function "struct AVFrame * __cdecl alloc_picture(enum AVPixelFormat,int,int)" (?alloc_picture@@YAPEAUAVFrame@@W4AVPixelFormat@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_free referenced in function "struct AVFrame * __cdecl alloc_picture(enum AVPixelFormat,int,int)" (?alloc_picture@@YAPEAUAVFrame@@W4AVPixelFormat@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_freep referenced in function "void __cdecl aviCloseWriter(struct tagAVIWriter *)" (?aviCloseWriter@@YAXPEAUtagAVIWriter@@@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_rescale_q referenced in function "void __cdecl aviWriteFrame(struct tagAVIWriter *,unsigned char *)" (?aviWriteFrame@@YAXPEAUtagAVIWriter@@PEAE@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_frame_alloc referenced in function "struct AVFrame * __cdecl alloc_picture(enum AVPixelFormat,int,int)" (?alloc_picture@@YAPEAUAVFrame@@W4AVPixelFormat@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_open2 referenced in function "void __cdecl initiate_avi_create(struct tagAVIWriter *,int,int)" (?initiate_avi_create@@YAXPEAUtagAVIWriter@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_close referenced in function "void __cdecl aviCloseReader(struct tagAVIReader *)" (?aviCloseReader@@YAXPEAUtagAVIReader@@@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_init_packet referenced in function "void __cdecl aviWriteFrame(struct tagAVIWriter *,unsigned char *)" (?aviWriteFrame@@YAXPEAUtagAVIWriter@@PEAE@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol av_free_packet referenced in function "void __cdecl aviReadFrame(struct tagAVIReader *,unsigned char *,int)" (?aviReadFrame@@YAXPEAUtagAVIReader@@PEAEH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_find_decoder referenced in function "void __cdecl initiate_avi_open(struct tagAVIReader *)" (?initiate_avi_open@@YAXPEAUtagAVIReader@@@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_decode_video2 referenced in function "void __cdecl aviReadFrame(struct tagAVIReader *,unsigned char *,int)" (?aviReadFrame@@YAXPEAUtagAVIReader@@PEAEH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_find_encoder referenced in function "void __cdecl initiate_avi_create(struct tagAVIWriter *,int,int)" (?initiate_avi_create@@YAXPEAUtagAVIWriter@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_find_encoder_by_name referenced in function "void __cdecl initiate_avi_create(struct tagAVIWriter *,int,int)" (?initiate_avi_create@@YAXPEAUtagAVIWriter@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avcodec_encode_video referenced in function "void __cdecl aviWriteFrame(struct tagAVIWriter *,unsigned char *)" (?aviWriteFrame@@YAXPEAUtagAVIWriter@@PEAE@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avpicture_fill referenced in function "struct AVFrame * __cdecl alloc_picture(enum AVPixelFormat,int,int)" (?alloc_picture@@YAPEAUAVFrame@@W4AVPixelFormat@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol avpicture_get_size referenced in function "struct AVFrame * __cdecl alloc_picture(enum AVPixelFormat,int,int)" (?alloc_picture@@YAPEAUAVFrame@@W4AVPixelFormat@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol sws_getContext referenced in function "void __cdecl initiate_avi_create(struct tagAVIWriter *,int,int)" (?initiate_avi_create@@YAXPEAUtagAVIWriter@@HH@Z)
    
1>ffmpeg_io.obj : error LNK2019: unresolved external symbol sws_scale referenced in function "void __cdecl aviReadFrame(struct tagAVIReader *,unsigned char *,int)" (?aviReadFrame@@YAXPEAUtagAVIReader@@PEAEH@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFClose referenced in function "void __cdecl tiffReadRGBA(char *,int *,int *,unsigned char *)" (?tiffReadRGBA@@YAXPEADPEAH1PEAE@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFGetField referenced in function "void __cdecl tiffReadRGBA(char *,int *,int *,unsigned char *)" (?tiffReadRGBA@@YAXPEADPEAH1PEAE@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFSetField referenced in function "void __cdecl tiffWriteRGBA(char *,int,int,unsigned char *)" (?tiffWriteRGBA@@YAXPEADHHPEAE@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFReadRGBAImage referenced in function "void __cdecl tiffReadRGBA(char *,int *,int *,unsigned char *)" (?tiffReadRGBA@@YAXPEADPEAH1PEAE@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFOpen referenced in function "void __cdecl tiffReadRGBA(char *,int *,int *,unsigned char *)" (?tiffReadRGBA@@YAXPEADPEAH1PEAE@Z)
    
1>tiff_io.obj : error LNK2019: unresolved external symbol TIFFWriteEncodedStrip referenced in function "void __cdecl tiffWriteRGBA(char *,int,int,unsigned char *)" (?tiffWriteRGBA@@YAXPEADHHPEAE@Z)
    
1>Video.obj : error LNK2019: unresolved external symbol "void __cdecl DCT2d(double *,double *,long,long)" (?DCT2d@@YAXPEAN0JJ@Z) referenced in function "void __cdecl ForwardDCT(class DataShuffle *,unsigned char *,char *,int,int,int,int,int,bool)" (?ForwardDCT@@YAXPEAVDataShuffle@@PEAEPEADHHHHH_N@Z)
    
1>Video.obj : error LNK2019: unresolved external symbol "void __cdecl IDCT2d(double *,double *,long,long)" (?IDCT2d@@YAXPEAN0JJ@Z) referenced in function "void __cdecl ExportVideoFromDCT(class DataShuffle *,char *,char *,int,int,int,int)" (?ExportVideoFromDCT@@YAXPEAVDataShuffle@@PEAD1HHHH@Z)
    
1>Video.obj : error LNK2019: unresolved external symbol "void __cdecl CopyToZigZag(double *,double *,long,long,long)" (?CopyToZigZag@@YAXPEAN0JJJ@Z) referenced in function "void __cdecl ForwardDCT(class DataShuffle *,unsigned char *,char *,int,int,int,int,int,bool)" (?ForwardDCT@@YAXPEAVDataShuffle@@PEAEPEADHHHHH_N@Z)
    
1>Video.obj : error LNK2019: unresolved external symbol "void __cdecl CopyFromZigZag(double *,double *,long,long,long)" (?CopyFromZigZag@@YAXPEAN0JJJ@Z) referenced in function "void __cdecl ExportVideoFromDCT(class DataShuffle *,char *,char *,int,int,int,int)" (?ExportVideoFromDCT@@YAXPEAVDataShuffle@@PEAD1HHHH@Z)

  • FFmpeg 32-bit DLLs fail to load on Windows when switching target platform to 32-bit in C# project (Linux cross-compile with MinGW)

    8 novembre 2024, par ryan

    I’m working on a C# project in Windows that integrates FFmpeg DLLs. I need both 32-bit and 64-bit FFmpeg DLLs. The 64-bit DLLs load and work fine, but when I change the target platform in my project settings to 32-bit, some 32-bit DLLs (specifically avfilter-7.dll) fail to load, even though they’re in the correct directory.

    


    Code :

    


    case PlatformID.Win32Windows:
    return WindowsNativeMethods.LoadLibrary(libraryName);


    


    is returning a null pointer for avfilter-7.dll.

    


    Error Received :

    


    System.Runtime.InteropServices.Marshal.GetLastWin32Error() = 0x0000007e 


    


    Which I think translates to ERROR_MOD_NOT_FOUND.

    


    Environment & Context :

    


      

    • Linux VM : Using a Linux virtual machine to cross-compile FFmpeg for Windows.

      • 


    • Tool : ffmpeg-windows-build-helpers script from https://github.com/rdp/ffmpeg-windows-build-helpers.

      • 


    • Cross-Compiler : MinGW (latest version installed on VM).

      • 


    • Target Architectures : Both 32-bit and 64-bit DLLs for Windows.

      • 


    • FFmpeg Version : n4.4.5 (using —ffmpeg-git-checkout-version=n4.4.5).

      • 


    


    Compilation Command :
Using the helper script, I’ve tried the following command to generate the 32 and 64 bit shared libraries :

    


    ./cross_compile_ffmpeg.sh --ffmpeg-git-checkout-version=n4.4.5 --disable-nonfree=y --build-libmxf=n --build-mp4box=n --build-vlc=n --build-svt-hevc=n --build-svt-vp9=n --build-dvbtee=n --build-dependencies=y --build-mplayer=n --build-ffmpeg-static=n --build-ffmpeg-shared=y --prefer-stable=y --build-x264-with-libav=n


    


    I’ve also updated MinGW to the latest version on the VM to ensure compatibility.

    


    Questions :

    


      

    1. What might be causing the 32-bit FFmpeg DLLs (like avfilter-7.dll) to fail to load on a Windows platform, while 64-bit DLLs work fine ?

      2. 


    2. Are there specific flags or steps in the build process needed to ensure compatibility for 32-bit FFmpeg DLLs in a 64-bit Windows environment ?

      3. 


    3. Are there common pitfalls when cross-compiling 32-bit and 64-bit FFmpeg DLLs with MinGW on Linux that could cause these loading issues ?

      4. 


    


    Any insights or additional troubleshooting tips would be greatly appreciated !

    


  • Unable to 'make' android ndk project - build fails : [build-openh264-x86] Error 2

    18 décembre 2015, par NoobNinja

    I’ve attempted these two fixes I’ve found while researching the issue :

    android update project  --23 --/Users/ajswann/Downloads/android-sdk-macosx 
    

    
make OS=android NDKROOT=/Users/ajswann/Downloads/android-sdk-macosx TARGET=android-19 ARCH=x86 clean

    ...however neither seems to resolve the issue.

    Any input/suggestions are appreciated.

    P.S.

    I’m running OSX - could this be an issue with attempting to run an x86 architecture on a 64 bit machine ?

    Error Message :

    chris-mini-mac:linphone-android ajswann$ sudo make
    
ls: /opt/local/etc/openssl/certs: No such file or directory
    
/Users/ajswann/Downloads/android-sdk-macosx/tools/android update project --path . --target android-23
    
Updated project.properties
    
Updated local.properties
    
build.xml: Found version-tag: custom. File will not be updated.
    
Updated file ./proguard-project.txt
    
It seems that there are sub-projects. If you want to update them
    
please use the --subprojects parameter.
    
/Users/ajswann/Downloads/android-sdk-macosx/tools/android update test-project --path tests -m .
    
Resolved location of main project to: /groupchat/linphone-android/tests
    
Updated project.properties
    
Updated local.properties
    
Updated file tests/proguard-project.txt
    
Updated ant.properties
    
/Users/ajswann/Downloads/android-sdk-macosx/tools/android update project --path liblinphone_tester --target android-23
    
Updated project.properties
    
Updated local.properties
    
Updated file liblinphone_tester/proguard-project.txt
    
ant -e -S clean
    
Buildfile: /groupchat/linphone-android/build.xml
    
No sub-builds to iterate on
    
mkdir -p /groupchat/linphone-android/submodules/externals/openh264/include/wels
    
rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/codec/api/svc/* /groupchat/linphone-android/submodules/externals/openh264/include/wels/.
    
building file list ... done
    

    
sent 156 bytes  received 20 bytes  352.00 bytes/sec
    
total size is 56216  speedup is 319.41
    
mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264
    
mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264/arm
    
cd /groupchat/linphone-android/submodules/externals/build/openh264/arm \
    
    && rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/* .
    
building file list ... done
    

    
sent 18841 bytes  received 20 bytes  37722.00 bytes/sec
    
total size is 48272799  speedup is 2559.40
    
cd /groupchat/linphone-android/submodules/externals/build/openh264/arm && \
    
    make libraries -j4 OS=android ARCH=arm NDKROOT=/Users/ajswann/Downloads/android-ndk-r10e TARGET=android-19
    
cd ./ && sh ./codec/common/generate_version.sh
    
Keeping existing codec/common/inc/version_gen.h
    
mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264
    
mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264/x86
    
cd /groupchat/linphone-android/submodules/externals/build/openh264/x86 \
    
    && rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/* .
    
building file list ... done
    

    
sent 18841 bytes  received 20 bytes  12574.00 bytes/sec
    
total size is 48272799  speedup is 2559.40
    
cd /groupchat/linphone-android/submodules/externals/build/openh264/x86 && \
    
    make libraries -j4 OS=android ARCH=x86 NDKROOT=/Users/ajswann/Downloads/android-ndk-r10e TARGET=android-19
    
cd ./ && sh ./codec/common/generate_version.sh
    
nasm -DX86_32 -f elf -I./codec/common/x86/   -o codec/decoder/core/x86/dct.o codec/decoder/core/x86/dct.asm
    
codec/decoder/core/x86/dct.asm:1: error: label or instruction expected at start of line
    
codec/decoder/core/x86/dct.asm:144: error: label or instruction expected at start of line
    
codec/decoder/core/x86/dct.asm:234: error: symbol `IdctResAddPred_mmx' redefined
    
codec/decoder/core/x86/dct.asm:262: error: symbol `WelsBlockZero16x16_sse2' redefined
    
codec/decoder/core/x86/dct.asm:276: error: symbol `WelsBlockZero8x8_sse2' redefined
    
codec/decoder/core/x86/dct.asm:287: error: label or instruction expected at start of line
    
make[1]: *** [codec/decoder/core/x86/dct.o] Error 1
    
make[1]: *** Waiting for unfinished jobs....
    
Keeping existing codec/common/inc/version_gen.h
    
make[1]: *** wait: No child processes.  Stop.
    
make: *** [build-openh264-x86] Error 2

    Source Repository (I simply clone it, add the platform-tools and tools folder from my android-sdk and run ’make’ and I get this error) :

    https://github.com/TheBaobabTeam/linphone-android

Navigation