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  • Utilisation et configuration du script

    19 janvier 2011, par

    Informations spécifiques à la distribution Debian
    Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
    Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
    Récupération du script
    Le script d’installation peut être récupéré de deux manières différentes.
    Via svn en utilisant la commande pour récupérer le code source à jour :
    svn co (...)

  • Configuration spécifique d’Apache

    4 février 2011, par

    Modules spécifiques
    Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
    Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
    Création d’un (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

Sur d’autres sites (7201)

  • OpenGL ES glReadPixels exc_bad_access

    6 décembre 2011, par Yanny

    I'm trying to create video from images using OpenGL ES and ffmpeg, but on iPad(4.3) I have a crash on glReadPixels

    -(NSData *) glToUIImage {
    

    
    int numberOfComponents = NUMBER_OF_COMPONENTS; //4
    
    int width = PICTURE_WIDTH; 
    
    int height = PICTURE_HEIGHT;
    

    
    NSInteger myDataLength = width * height * numberOfComponents;   
    

    
    NSMutableData * buffer= [NSMutableData dataWithLength :myDataLength];    
    

    
    [self checkForGLError]; 
    

    
    GLenum type = NUMBER_OF_COMPONENTS == 3 ? GL_RGB : GL_RGBA; //RGBA
    
    glReadPixels(0, 0, width, height, type, GL_UNSIGNED_BYTE, [buffer mutableBytes]);   //EXC_BAD_ACCESS here
    

    
    return buffer; 
    
}

    It is working on iPhone 4 (4.3) and iPod Touch, but have problems on iPhone 3G(3.0) and iPad(4.3). Can you help me with this issue ?

    Also on iPhone 3G(3.0) and iPad(4.3) I have problems with Video - first 5-20 video frames have trash. Maybe issue with optimization ? Or architecture ?

    EDITED
    Stack :

    #0  0x33be3964 in void BlockNxN<64ul, 16ul, 1, BLOCK_CONVERTER_NULL_32>(unsigned long, int, int, unsigned long, int, int, unsigned int, unsigned int, unsigned int, unsigned int) ()
    
#1  0x33be1c76 in glrBIFDetile ()
    
#2  0x33b586b2 in sgxGetImage(SGXImageReadParams const*) ()
    
#3  0x33b50d38 in gldReadPixels ()
    
#4  0x31813e16 in glReadPixels_Exec ()
    
#5  0x31e3c518 in glReadPixels ()

  • OpenGLES glReadPixels exc_bad_access

    29 novembre 2011, par Yanny

    I'm trying to create video from images using OpenGLES and ffmpeg, but on iPad(4.3) I have a crash on glReadPixels

    -(NSData *) glToUIImage {
    

    
    int numberOfComponents = NUMBER_OF_COMPONENTS; //4
    
    int width = PICTURE_WIDTH; 
    
    int height = PICTURE_HEIGHT;
    

    
    NSInteger myDataLength = width * height * numberOfComponents;   
    

    
    NSMutableData * buffer= [NSMutableData dataWithLength :myDataLength];    
    

    
    [self checkForGLError]; 
    

    
    GLenum type = NUMBER_OF_COMPONENTS == 3 ? GL_RGB : GL_RGBA; //RGBA
    
    glReadPixels(0, 0, width, height, type, GL_UNSIGNED_BYTE, [buffer mutableBytes]);   //EXC_BAD_ACCESS here
    

    
    return buffer; 
    
}

    It is working on iPhone 4 (4.3) and iPod Touch, but have problems on iPhone 3G(3.0) and iPad(4.3). Can you help me with this issue ?

    Also on iPhone 3G(3.0) and iPad(4.3) I have problems with Video - first 5-20 video frames have trash. Maybe issue with optimization ? Or architecture ?

  • I am trying to use the RTSPPlay, project of mooncatventures. But it shows me error like this

    7 octobre 2013, par kamlesh shingarakhiya

    I am trying to use the RTSPPlay, project of mooncatventures. But it shows me error like this.

    Ld /Users/admin/Library/Developer/Xcode/DerivedData/Intercom-bpixnryueeelexfnzxtmgchcfgzq/Build/Products/Debug-iphonesimulator/Intercom.app/Intercom normal i386
    
    cd /Volumes/IPHONE/Intercom
    
    setenv IPHONEOS_DEPLOYMENT_TARGET 6.1
    
    setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk -L/Users/admin/Library/Developer/Xcode/DerivedData/Intercom-bpixnryueeelexfnzxtmgchcfgzq/Build/Products/Debug-iphonesimulator -F/Users/admin/Library/Developer/Xcode/DerivedData/Intercom-bpixnryueeelexfnzxtmgchcfgzq/Build/Products/Debug-iphonesimulator -F/Users/admin/Downloads/RTSPPlay-master -filelist /Users/admin/Library/Developer/Xcode/DerivedData/Intercom-bpixnryueeelexfnzxtmgchcfgzq/Build/Intermediates/Intercom.build/Debug-iphonesimulator/Intercom.build/Objects-normal/i386/Intercom.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -Xlinker -no_implicit_dylibs -fobjc-link-runtime -mios-simulator-version-min=6.1 -framework FFmpegDecoder -framework FFPlayer -framework SDL -framework OpenGLES -framework MediaPlayer -framework CoreMedia -framework CoreVideo -framework MobileCoreServices -framework AVFoundation -framework CFNetwork -lbz2 -lxml2 -lz.1.1.3 -lz -framework QuartzCore -framework Security -framework SystemConfiguration -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/admin/Library/Developer/Xcode/DerivedData/Intercom-bpixnryueeelexfnzxtmgchcfgzq/Build/Products/Debug-iphonesimulator/Intercom.app/Intercom
    

    

    

    
Undefined symbols for architecture i386:
    
  "_SDL_AddTimer", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_CloseAudio", referenced from:
    
      _stream_component_close in FFPlayer(main.o)
    
  "_SDL_CondSignal", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
      _packet_queue_abort in FFPlayer(main.o)
    
      _packet_queue_put in FFPlayer(main.o)
    
  "_SDL_CondWait", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
      _packet_queue_get in FFPlayer(main.o)
    
  "_SDL_CreateCond", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _packet_queue_init in FFPlayer(main.o)
    
  "_SDL_CreateMutex", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _packet_queue_init in FFPlayer(main.o)
    
  "_SDL_CreateRGBSurface", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _video_open in FFPlayer(main.o)
    
  "_SDL_CreateRenderer", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_CreateThread", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _stream_component_open in FFPlayer(main.o)
    
  "_SDL_CreateWindow", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_Delay", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
      _decode_thread in FFPlayer(main.o)
    
  "_SDL_DestroyCond", referenced from:
    
      _do_exit in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
  "_SDL_DestroyMutex", referenced from:
    
      _do_exit in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
  "_SDL_DestroyTexture", referenced from:
    
      _video_display in FFPlayer(main.o)
    
  "_SDL_EventState", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_FillRect", referenced from:
    
      _video_display in FFPlayer(main.o)
    
  "_SDL_FreeSurface", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _do_exit in FFPlayer(main.o)
    
  "_SDL_GL_SetAttribute", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_Init", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_LockSurface", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_SDL_MapRGB", referenced from:
    
      _video_display in FFPlayer(main.o)
    
  "_SDL_OpenAudio", referenced from:
    
      _stream_component_open in FFPlayer(main.o)
    
  "_SDL_PauseAudio", referenced from:
    
      _stream_component_open in FFPlayer(main.o)
    
  "_SDL_PixelFormatEnumToMasks", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _video_open in FFPlayer(main.o)
    
  "_SDL_PollEvent", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_PushEvent", referenced from:
    
      _sdl_refresh_timer_cb in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _decode_thread in FFPlayer(main.o)
    
  "_SDL_RenderPresent", referenced from:
    
      _video_display in FFPlayer(main.o)
    
  "_SDL_SendQuit", referenced from:
    
      -[SDLUIKitDelegate quitSdl] in SDL_uikitappdelegate.o
    
      -[SDLUIKitDelegate applicationWillTerminate:] in SDL_uikitappdelegate.o
    
      -[SDLUIKitDelegate applicationDidEnterBackground:] in SDL_uikitappdelegate.o
    
  "_SDL_UnlockSurface", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_SDL_WaitEvent", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_SDL_WaitThread", referenced from:
    
      _do_exit in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
  "_SDL_mutexP", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
      _packet_queue_get in FFPlayer(main.o)
    
      _packet_queue_abort in FFPlayer(main.o)
    
      _packet_queue_flush in FFPlayer(main.o)
    
      ...
    
  "_SDL_mutexV", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _stream_component_close in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
      _packet_queue_get in FFPlayer(main.o)
    
      _packet_queue_abort in FFPlayer(main.o)
    
      _packet_queue_flush in FFPlayer(main.o)
    
      ...
    
  "_av_audio_convert", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
  "_av_audio_convert_alloc", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
  "_av_audio_convert_free", referenced from:
    
      _stream_component_close in FFPlayer(main.o)
    
      _sdl_audio_callback in FFPlayer(main.o)
    
  "_av_bitstream_filter_next", referenced from:
    
      _show_formats in cmdutils.o
    
  "_av_close_input_file", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_codec_next", referenced from:
    
      _show_formats in cmdutils.o
    
  "_av_dup_packet", referenced from:
    
      _packet_queue_put in FFPlayer(main.o)
    
  "_av_find_input_format", referenced from:
    
      _opt_format in FFPlayer(main.o)
    
  "_av_find_opt", referenced from:
    
      _opt_default in cmdutils.o
    
  "_av_find_stream_info", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_free", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _free_subpicture in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _packet_queue_get in FFPlayer(main.o)
    
  "_av_free_packet", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
      _packet_queue_flush in FFPlayer(main.o)
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_freep", referenced from:
    
      _free_subpicture in FFPlayer(main.o)
    
      _packet_queue_flush in FFPlayer(main.o)
    
  "_av_get_bits_per_sample_format", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
  "_av_get_int", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_av_get_string", referenced from:
    
      _set_context_opts in cmdutils.o
    
  "_av_gettime", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _get_master_clock in FFPlayer(main.o)
    
      _video_display in FFPlayer(main.o)
    
      _get_video_clock in FFPlayer(main.o)
    
      _stream_component_open in FFPlayer(main.o)
    
      _sdl_audio_callback in FFPlayer(main.o)
    
      _stream_pause in FFPlayer(main.o)
    
      ...
    
  "_av_iformat_next", referenced from:
    
      _show_formats in cmdutils.o
    
  "_av_init_packet", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_log", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_malloc", referenced from:
    
      _packet_queue_put in FFPlayer(main.o)
    
  "_av_mallocz", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_av_metadata_get", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_oformat_next", referenced from:
    
      _show_formats in cmdutils.o
    
  "_av_open_input_file", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_protocol_next", referenced from:
    
      _show_formats in cmdutils.o
    
  "_av_read_frame", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_read_pause", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_read_play", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_av_realloc", referenced from:
    
      _opt_default in cmdutils.o
    
  "_av_register_all", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_av_set_string3", referenced from:
    
      _opt_default in cmdutils.o
    
      _set_context_opts in cmdutils.o
    
  "_av_strdup", referenced from:
    
      _parse_options in cmdutils.o
    
  "_av_strlcat", referenced from:
    
      _show_help_options in cmdutils.o
    
  "_av_strlcpy", referenced from:
    
      _show_help_options in cmdutils.o
    
      _SDL_main in FFPlayer(main.o)
    
  "_avcodec_alloc_context2", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_avcodec_alloc_frame", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_avcodec_close", referenced from:
    
      _stream_component_close in FFPlayer(main.o)
    
  "_avcodec_decode_audio3", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
  "_avcodec_decode_subtitle2", referenced from:
    
      _subtitle_thread in FFPlayer(main.o)
    
  "_avcodec_decode_video2", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_avcodec_find_decoder", referenced from:
    
      _stream_component_open in FFPlayer(main.o)
    
  "_avcodec_flush_buffers", referenced from:
    
      _sdl_audio_callback in FFPlayer(main.o)
    
      _video_thread in FFPlayer(main.o)
    
      _subtitle_thread in FFPlayer(main.o)
    
  "_avcodec_open", referenced from:
    
      _stream_component_open in FFPlayer(main.o)
    
  "_avcodec_register_all", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_avcodec_thread_init", referenced from:
    
      _stream_component_open in FFPlayer(main.o)
    
  "_avcodec_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_avdevice_register_all", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_avdevice_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_avfilter_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_avformat_alloc_context", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_avformat_seek_file", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_avformat_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_avpicture_alloc", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_avutil_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_dump_format", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_parse_date", referenced from:
    
      _parse_time_or_die in cmdutils.o
    
  "_sws_getCachedContext", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_sws_getContext", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_sws_scale", referenced from:
    
      _video_thread in FFPlayer(main.o)
    
  "_swscale_version", referenced from:
    
      _print_all_lib_versions in cmdutils.o
    
  "_url_feof", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_url_ferror", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
  "_url_ftell", referenced from:
    
      _SDL_main in FFPlayer(main.o)
    
  "_url_set_interrupt_cb", referenced from:
    
      _decode_thread in FFPlayer(main.o)
    
ld: symbol(s) not found for architecture i386
    
clang: error: linker command failed with exit code 1 (use -v to see invocation)

    Can someone plz help me, thanx guys. I have checked that SDL.Framework and I dont see any problem in it. Does I have to add some library in my project to run this project or in mac.

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