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• Evolution #4816 (Nouveau) : Déplacer la lib de menu déroulant dans le core

  8 juin 2021, par RastaPopoulos ♥

  Avec la refonte de l’interface, on a ajouté une lib de menu déroulant spécifiquement dans ce plugin. Mais en fait après coup on a aussi petit à petit amorcé un chantier de remplacement de jquery ui par des mini lib unitaires pour chaque besoin.

  Il faudrait avant la release déplacer cette lib dans le core, plutôt que juste dans SVP, afin que tous les autres plugins puissent aussi en profiter. (Et même le noyau hinhin : https://core.spip.net/issues/4766 )

• Error in FFMPEG/LIBAV audio_decode example for aac decoding

  23 mai 2017, par Prashant Ravi

  I am trying to do aac decoding using the examples provided by FFMPEG/LIBAV. I modified the example as follows :-

  int main(int argc, char **argv)
  
  {
  
      .......
  
      /* find the MPEG audio decoder */
  
      codec = avcodec_find_decoder(AV_CODEC_ID_AAC);
  
      if (!codec) {
  
          fprintf(stderr, "codec not found\n");
  
          exit(1);
  
      }
  
      .......
  
      return 0;
  
  }

  I changed the decoder type to "AV_CODEC_ID_AAC" and recompiled the examples.

  Once I ran the example for decode audio with an example aac audio file but I am getting the following

  prashantravi@mini:/media/sf_Shared/libav/doc/examples$ ./decode_audio ../../../example.aac ../../../out.wav
  
  Error submitting the packet to the decoder
  
  err code :-1052488119

  I tried looking up the error code but it dosent match with any of the existing error codes at all.

• Using Qt Media Player on Raspberry Pi 1

  18 mai 2015, par Mauker

  I have a project built using Qt5 which has to play a video. Just like in the videowidget sample code.

  I’ve followed these instructions to build qt5 on my Pi. And it went just fine. But when I try to run any qt program that uses QMediaPlayer, I get the error message :

  defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

  Which means I don’t have a backend to play the video, right ? Is there any one that I can use which will with Qt, like ffmpeg ? And how can I get it to work ? Specially for h264 videos.

  I’ve tried to install gstreamer as is told on this link, but it’s not working. Will I have to rebuild the entire qt5 again ?

  P.S. : I have the raspberry pi 1 model B with raspbian installed.

  Edit : As mentioned by Greenflow, I checked the ./configure log and saw that the GStreamer was compiled in, but the video apps are still not working...

  The message on the log was like this :

  GStreamer .............. yes (0.10)

  And the message on Greenflow’s log was like this :

  GStreamer .............. yes (1.0)

  Clearly it’s another version of GStreamer, but is it the problem ?

  I’ve also found this post which says QtMultimedia on the Pi is rather useless, but the post is from 2013, so I’m not sure if it’s really relevant. I’d like to have this app playing hardware accelerated videos on my Raspberry Pi, but I’m almost dropping the idea.

  Anyways, thanks Greenflow for the head start.

  Edit 2 : Found this thread on the Qtcentre. Damn, this thing is not going to be easy to solve, I guess...