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• brodcast png & video ffmpeg with raspberry

  6 mars 2021, par FoxFr

  Someone can help me to add a image during 10s beetwen the videos ?
or explain me how do that

  


  ffmpeg \
-i /dev/video0 \
-i /dev/video2 \
-i /home/pi/videopi/map.png \
-stream_loop -1 -re -i "/home/pi/videopi/bed.mp3" \
-filter_complex "[0][1]overlay=enable='lt(mod(t,60),30)'[v];[v]drawtext=textfile=/home/pi/videopi/gps.txt:reload=1:x=30:y=100:fontfile=OpenSans.ttf:font$
-map "[v]" \
-map 2:a \
-c:v libx264 -b:v 4000k -maxrate 4000k -bufsize 8000k -g 50 -c:a aac \
-f flv rtmp://a.rtmp.youtube.com/live2/XXXXXXXXXX


  


  Below the sequence wished

  


  |-> video0 - duration 30" --> map.png - duration 10" --> video2 - duration 30" --|
|                                                                                | 
|--------------------------------------- loop -----------------------------------|


  


  I'd try to put

  


  -f image2 -loop 1 -i "/home/pi/videopi/acmo/map.png" \


  


  instead of

  


  -i /dev/video0 \


  


  without success

  


• Anomalie #4574 (Nouveau) : Authentification AJAX non fonctionnelle lorsque mode parano actif

  15 octobre 2020, par Guillaume Fahrner

  L’activation du mode parano casse l’authentification via AJAX, le JSON retourné par la page informer_auteur.html n’est plus valide : erreur javascript lors du parsing JSON -> hash calculé faux -> erreur de login

  Une surcharge vide de formulaires/inc-logo_auteur.html permet de contourner ce problème (le logo n’apparaîtra plus bien évidemment).

  Une autre solution (plus propre, sûr ?) consiste à désactiver les traitement de sécurité globaux dans informer_auteur.html en utilisant ** :

  <span class="CodeRay">[(#DATE**|informer_auteur)]
  </span>
  Télécharger

  Il faut par contre modifier la fonction informer_auteur() pour filtrer var_login avant de le retourner :

  <span class="CodeRay"><span class="keyword">function</span> <span class="function">informer_auteur</span>(<span class="local-variable">$bof</span>) {
      include_spip(<span class="string"><span class="delimiter">'</span><span class="content">inc/json</span><span class="delimiter">'</span></span>);
      include_spip(<span class="string"><span class="delimiter">'</span><span class="content">formulaires/login</span><span class="delimiter">'</span></span>);
      include_spip(<span class="string"><span class="delimiter">'</span><span class="content">inc/auth</span><span class="delimiter">'</span></span>);
      <span class="local-variable">$login</span> = <span class="predefined">strval</span>(_request(<span class="string"><span class="delimiter">'</span><span class="content">var_login</span><span class="delimiter">'</span></span>));
      <span class="local-variable">$row</span> = auth_informer_login(<span class="local-variable">$login</span>);
      <span class="keyword">if</span> (<span class="local-variable">$row</span> <span class="keyword">and</span> <span class="predefined">is_array</span>(<span class="local-variable">$row</span>) <span class="keyword">and</span> <span class="predefined">isset</span>(<span class="local-variable">$row</span>[<span class="string"><span class="delimiter">'</span><span class="content">id_auteur</span><span class="delimiter">'</span></span>])) {
          <span class="predefined">unset</span>(<span class="local-variable">$row</span>[<span class="string"><span class="delimiter">'</span><span class="content">id_auteur</span><span class="delimiter">'</span></span>]);
      } <span class="keyword">else</span> {
          <span class="local-variable">$row</span>[<span class="string"><span class="delimiter">'</span><span class="content">login</span><span class="delimiter">'</span></span>] = safehtml(<span class="local-variable">$login</span>);
      }
   
      <span class="keyword">return</span> json_export(<span class="local-variable">$row</span>);
  }
  </span>
  Télécharger

  SPIP 3.2.8 à jour

• "ERROR : libopencv not found" when compiling ffmpeg

  13 avril 2023, par ArnoBen

  I am trying to install ffmpeg with the libopencv libraries and it fails with the error "ERROR : libopencv not found".

  


  I did install libopencv with sudo apt install libopencv-dev which now prints libopencv-dev is already the newest version (3.2.0+dfsg-4ubuntu0.1), and I can see the files in /usr/include/opencv2.

  


  Here is my full script to compile ffmpeg :

  


  cd ~/ffmpeg_sources && \
wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
tar xjvf ffmpeg-snapshot.tar.bz2 && \
cd ffmpeg && \
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --ld="g++" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-gnutls \
  --enable-libopencv \
  --enable-libtensorflow \
  --enable-libx264 \
  --enable-libfdk-aac \
  --enable-nonfree && \
PATH="$HOME/bin:$PATH" make -j4 && \
make -j4 install && \
hash -r


  


  It works fine if I remove the --enable-libopencv line.

  


  I'm running Ubuntu 18.04.6.

  


  Any help would be appreciated.