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  • 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 (...)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • 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 (...)

Sur d’autres sites (9310)

  • OUTPUT webcam video over rtp

    20 août 2013, par Manjinder Singh Sekhon

    I'm currently trying to stream webcam video from beagleboard black to my laptop and am using this line of code :

    avconv -f video4linux2 -i /dev/video0 -debug -vcodec mpeg2video -r 25 -pix_fmt yuv420p -me_method epzs -b 2600k -bt 256k -f rtp rtp ://192.168.1.12:5004

    the program starts working, but after a while it doesn't really do anything.
    debug log :

    avconv version v0.8.4, Copyright (c) 2000-2012 the Libav developers
    
  built on May 20 2013 13:00:42 with gcc 4.7.3 20130205 (prerelease)
    
  configuration: --enable-shared --enable-pthreads --enable-gpl --enable-postproc --enable-avfilter --cross-prefix=arm-angstrom-linux-gnueabi- --prefix=/usr --enable-avserver --enable-avplay --enable-x11grab --enable-libtheora --enable-libvorbis --enable-libx264 --arch=arm --target-os=linux --enable-cross-compile --extra-cflags=' -fexpensive-optimizations -fomit-frame-pointer -O4 -ffast-math -march=armv7-a -mthumb-interwork -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8 --sysroot=/build/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/beaglebone' --extra-ldflags='-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed' --sysroot=/build/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/beaglebone --enable-hardcoded-tables --cpu=cortex-a8
    
  libavutil    51. 22. 1 / 51. 22. 1
    
  libavcodec   53. 35. 0 / 53. 35. 0
    
  libavformat  53. 21. 0 / 53. 21. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 15. 0 /  2. 15. 0
    
  libswscale    2.  1. 0 /  2.  1. 0
    
  libpostproc  52.  0. 0 / 52.  0. 0
    
[video4linux2 @ 0x2dae0] [3]Capabilities: 84000001
    
[video4linux2 @ 0x2dae0] Querying the device for the current frame size
    
[video4linux2 @ 0x2dae0] Setting frame size to 640x480
    
[video4linux2 @ 0x2dae0] The V4L2 driver changed the pixel format from 0x32315559 to 0x56595559
    
    Last message repeated 1 times
    
[video4linux2 @ 0x2dae0] The V4L2 driver changed the pixel format from 0x50323234 to 0x56595559
    
[video4linux2 @ 0x2dae0] The V4L2 driver set input_id: 0, input: Camera 1

    from what I can see, the program stops because it can't get any input from webcam. The webcam works when I use a opencv program.(so /dev/video0 definitly works.) Any ideas. I've also tried using ffmpeg, but i get message that I should use avconv.

  • How can I stream mjpeg file as rtsp

    24 août 2013, par Ilya Yevlampiev

    We have an mjpeg video, obtained from the webcam and stored into *.avi file, still encoded as mjpeg.

    We need to restream this file as rtsp (and stil preserve the mjpeg there, i.e. no decoding). The goal is to emulate the webcam this video was obtained from for the software that processes the video. The file can be open with vlc/ffplay with no problems. The ffmpeg behaves like it is streaming it, however, ffplay/vlc can't open this stream.

    We tried to stream if with gstreamer.

    1) we fount no free rtsp sink element for gstreamer pipeline. So, is there a free analogue for rtspsink to launch this pipeline with gst-launch ? we need and only cast, so we don't need so advanced element as rtspsink is.

    2) we also tried to build own simple rtsp server as described in http://weeklybuild.com/2013/01/creating-an-rtsp-stream-with-gstreamer/

    replacing videotestsrc with filesrc ; but what kind of elements we should use there ? usage of an only filesrc doesn't help ; we get the same problem as if we stream with ffmpeg. But what kind of lements we need there, if we dont' wan to decode/encode it, just to stream the file (to reproduce the thing what the webcam actually does).

     $ ffplay rtsp://127.0.0.1:8554/test -loglevel debug
    
 avplay version 0.8.5-6:0.8.5-1, Copyright (c) 2003-2012 the Libav developers
    
 built on Jan 13 2013 12:05:48 with gcc 4.7.2
    
 configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.5-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
 avutil      configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
 avcodec     configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
 avformat    configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
 swscale     configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
postproc    configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-            postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
    
libavutil    51. 22. 1 / 51. 22. 1
    
libavcodec   53. 35. 0 / 53. 35. 0
    
libavformat  53. 21. 1 / 53. 21. 0
    
libavdevice  53.  2. 0 / 53.  2. 0
    
libavfilter   2. 15. 0 /  2. 15. 0
    
libswscale    2.  1. 0 /  2.  1. 0
    
libpostproc  52.  0. 0 / 52.  0. 0
    
[rtsp @ 0x7f558c0008c0] method DESCRIBE failed: 503 Service Unavailable
    
[rtsp @ 0x7f558c0008c0] CSeq: 2
    
 Server: GStreamer RTSP server
    
 Date: Thu, 22 Aug 2013 07:49:30 GMT
    

    
 rtsp://127.0.0.1:8554/test: Invalid data found when processing input

    And everything is okay when I try gstreamer server built as in example, i.e. using videotestsrc

  • vf_fps : use double constants for default/min/max for start_time

    27 août 2013, par Hendrik Leppkes
    vf_fps : use double constants for default/min/max for start_time

    When using AV_NOPTS_VALUE (which expands to INT64_C(0x8000000000000000))
    
as union initializer for a double field, the c99 converter needs to
    
interpret this constant when filling the union initializer, and it is
    
interpreted as a positive value.
    

    When converting AV_NOPTS_VALUE to a double, MSVC 2010 ends up with
    
the same positive value as the c99 converter, while MSVC 2012 gets
    
a negative value.
    

    This results in an infite loop in various FATE tests on MSVC 2012.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavfilter/vf_fps.c

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