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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • 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 (...)

Sur d’autres sites (11219)

  • Synchronization between camera video and inertial sensor data

    14 janvier 2013, par Dima Bobby

    I need to :

    write an Android real-time data logging application employing camera video and polling other sensor (accelerometer, gyro, compass) data at high rates e.g. 50 Hz and writing this information into file. As these data will later be used for navigation, precise synchronization between different data is extremely important.

    What I have done :

    implemented sensor polling in native code, so that less Java execution overhead is employed. Nonetheless, camera encoding is still in Java, for this I tried MediaRecorder and MediaCodec. In both cases data from inertial sensors and camera are not synchronized between each other, there is a varying delay of about 400ms and this is inacceptible. Moreover, I am pretty sure that encoding is HW accelerated. Now, to reach my goal I am considering about going for native implementation of video encoding using either OpenCV or FFMPEG (native code is expected to be more efficient).

    EDIT : I have even tried saving the image uncompressed as pgm file, but this way the image data get really huge in size and the FPS is really low, so we are losing data. I suspect that file writing process is the bottleneck in this case. Is there an efficient way to save raw data to file achieving high FPS ?

    Any hints what I should go for to achieve my goal ? I am using Android Jelly Bean with Asus Transformer TF700 Infinity.

    Regards,
    Dmitriy

  • How can I see the IP Camera on my phone

    11 janvier 2013, par Pike

    I try to use ffmpeg on android and want to see IP Camera
    but somethings wrong
    avformat_open_input(&gFormatCtx, "rtsp ://root:root@111.111.111.111/profile1/media.smp",NULL,NULL)
    av_open_input_file(&gFormatCtx,"rtsp ://root:root@111.111.111.111/profile1/media.smp", NULL, 0, NULL)

    two function can't return handle

    so add —enable-network —enable-protocol=tcp —enable-demuxer=rtsp —enable-decoder=h264 option

    then 

    C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_16_dynamic_handler'
    
 C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_24_dynamic_handler'
    
 C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_32_dynamic_handler'
    
 C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_40_dynamic_handler'
    
 C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavcodec.a(allcodecs.o): in function avcodec_register_all:C:/Work/FFmpegBasic/jni/ffmpeg/libavcodec/allcodecs.c:346: error: undefined reference to 'ff_libaacplus_encoder'
    
 C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavcodec.a(allcodecs.o): in function avcodec_register_all:C:/Work/FFmpegBasic/jni/ffmpeg/libavcodec/allcodecs.c:346: error: undefined reference to 'ff_libspeex_encoder'
    
collect2: ld returned 1 exit status
    
/cygdrive/c/android-ndk-r8d/build/core/build-binary.mk:397: recipe for target `/cygdrive/c/Work/FFmpegBasic/obj/local/armeabi-v7a/libbasicplayer.so' failed
    
make: *** [/cygdrive/c/Work/FFmpegBasic/obj/local/armeabi-v7a/libbasicplayer.so] Error 1

    what's the problem ? ff ?
    how can I solve ?

  • Receive raw video data from Android camera using ffmpeg. Wrong frame rate

    5 novembre 2014, par trololo

    My app receive raw video data from Android data using this command :

    ffmpeg -re -f -rawvideo -pixel_format nv21 -video_size 640x480 -i  -c:v libx264 -preset fast -f flv

    But the output video fps is 25. Input FPS is always changed (5-10). How to set to output file correct frames ?
    Something like

    ... -r 5 -f flv

    is not good due to I do not know input FPS. How to set any frame to proper time ?

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