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Autres articles (55)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Création définitive du canal

    12 mars 2010, par

    Lorsque votre demande est validée, vous pouvez alors procéder à la création proprement dite du canal. Chaque canal est un site à part entière placé sous votre responsabilité. Les administrateurs de la plateforme n’y ont aucun accès.
    A la validation, vous recevez un email vous invitant donc à créer votre canal.
    Pour ce faire il vous suffit de vous rendre à son adresse, dans notre exemple "http://votre_sous_domaine.mediaspip.net".
    A ce moment là un mot de passe vous est demandé, il vous suffit d’y (...)

  • 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 (7622)

  • Gstreamer basic tutorial gives blank screen

    11 novembre 2013, par user763410

    I have the following gstreamer basic tutorial. When I compile and run the program, I am only getting a blank screen. The same happens when I use mplayer, but I supply -vo x11 option to it and it works well(for mplayer). So, I am guessing the issue gstreamer is also the same. So, my question is..."What should I do to tell the program that my output driver is x11 ?" How do I get rid of the blank screen ?

    Thanks

    #include <gst></gst>gst.h>
    

    
int main(int argc, char *argv[]) {
    
  GstElement *pipeline;
    
  GstBus *bus;
    
  GstMessage *msg;
    

    
  /* Initialize GStreamer */
    
  gst_init (&amp;argc, &amp;argv);
    

    
  /* Build the pipeline */
    
  /*
    
    pipeline = gst_parse_launch ("playbin2 uri=http://docs.gstreamer.com/media/sintel_trailer-480p.webm", NULL);
    
  */
    
    pipeline = gst_parse_launch ("playbin2 uri=file:///home/mylogin/gstreamerstuff/sintel_trailer-480p.webm", NULL);
    

    
  /* Start playing */
    
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
    

    
  /* Wait until error or EOS */
    
  bus = gst_element_get_bus (pipeline);
    
  msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
    

    
  /* Free resources */
    
  if (msg != NULL)
    
    gst_message_unref (msg);
    
  gst_object_unref (bus);
    
  gst_element_set_state (pipeline, GST_STATE_NULL);
    
  gst_object_unref (pipeline);
    
  return 0;
    
}

  • Doing Actions Simultaneously Versus In A Queue

    24 août 2013, par GangstaGraham

    Say, there are 40 different users of a mobile app calling the server, which delivers some content created using FFMPEG.

    It takes about 5 seconds to create the content for each user.

    I was just wondering if FFMPEG would process, the commands simultaneously, or if it would be done in a queue.

    Basically would it take approximately 5 seconds for everyone, or would it take 5 seconds - 200 seconds for each person, depending on their queue positioning.

    Also, if it would be done via queueing, how would it be possible to change the task to become simultaneous because I don't want my users to wait for a long time.

  • 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=&#39;6:0.8.5-1&#39; --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=&#39;6:0.8.4-1&#39; --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=&#39;6:0.8.4-1&#39; --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=&#39;6:0.8.4-1&#39; --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=&#39;6:0.8.4-1&#39; --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=&#39;6:0.8.4-1&#39; --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

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