Recherche avancée

Sur d’autres sites (6523)

• Merging videos. multiple overlays and audio in one step

  3 février 2019, par user14567

  I have a process that I run hourly to update a 60 sec weather video.

  I combine a background video with a generated m4a audio track, scrolling text and separate top and bottom overlays.

  I need all of this in an mp4 and in a TLS (m3u8) format.

  Right now I do this 3 ffmpeg consecutive sessions and end up with a rendered 720p mp4.

  Then I run a 4th ffpmeg session to convert the the mp4 to a TLS version (I need both mp4 and m3u8.)

  I am doing this in 4 ffmpeg runs because I haven’t figured out how to combine the filters and do it in less.

  When I try an combine this, I lose either the overlays or the text. I can’t get it all to come out in one session. I’ve tried comma separating within the filters but I haven’t found the right combination.

  Any assistance in showing me how to combine this work and reduce the number of runs would be greatly appreciated.

  This runs on a Centos 7 box with ffmpeg version 3.4.1.

  #
  
  # Step 1: Combine background video with audio and scrolling text
  
  #
  
  ffmpeg -i /video/weather/media/sunnybeach.mp4 \
  
  -i /video/weather/prod/currentweather.m4a \
  
  -i /video/weather/media/weather-lower-third1.png \
  
  -map 2:v:0 -map 1:a:0 -strict -2 \
  
  -filter_complex  "[0]split[txt][orig];[txt]drawtext=fontfile=/var/www/vhosts/30a.tv/httpdocs/openx/lib/pear/Image/Canvas/Fonts/arial.ttf:fontsize=80:fontcolor=white:x=(w-text_w)/2+20:y=h-70*t:textfile=/video/weather/prod/currentweather.txt:bordercolor=black:borderw=2[txt];[orig]crop=iw:50:0:0[orig];[txt][orig]overlay” \
  
  -t 60 -c:v libx264 -y -s hd720  -loglevel quiet /video/weather/prod/currentweather.mp4 2>&1 >> /dev/null
  
  
  
  if [ $? != 0 ]; then echo fail step 1; exit 1;fi
  
  
  
  #
  
  # Step 2: now overlay current lowerthird
  
  #
  
  ffmpeg -i /video/weather/prod/currentweather.mp4 \
  
  -i /video/weather/media/weather-lower-third1.png \
  
  -strict -2 -filter_complex  "[0:v][1:v]overlay" -c:a copy -y  \
  
  -loglevel quiet $FKWI/currentweather1.mp4 2>&1 >> /dev/null
  
  
  
  if [ $? != 0 ]; then echo fail step 2; exit 1;fi
  
  
  
  #
  
  # Step 3: now overlay current topbanner
  
  #
  
  ffmpeg -i $FKWI/currentweather1.mp4 \
  
  -i /video/weather/media/weather-top-banner.png \
  
  -strict -2 -filter_complex  "[0:v][1:v]overlay" -c:a copy -y  \
  
  -loglevel quiet $FKWI/currentweather.mp4 2>&1 >> /dev/null
  
  
  
  if [ $? != 0 ]; then echo fail step 3; exit 1;fi
  
  
  
  #
  
  # Step 4: Now make TLS version
  
  #
  
  
  
  cd $FKWI/httpdocs/weather
  
  RES1=`/usr/bin/ffmpeg -i $FKWI/httpdocs/currentweather.mp4 \
  
  -profile:v baseline -level 3.0 -s 1280x720 \
  
  -c:a aac -ar 48000 -g 60 -start_number 0 \
  
  -hls_time 6 -hls_list_size 0 -f hls \
  
  -hls_base_url "http://$URL.com/weather/" \
  
  -hls_segment_filename "video%04d.ts" \
  
  -strict -2   -loglevel quiet "currentweather.m3u8" 2>&1>>/dev/null `
  
  
  
  if [ $? != 0 ]; then echo fail step 4; exit 1;fi

  This code yields both videos fine, but it takes 4 runs and I need it to happen in less runs.

• Evolution #4271 (Nouveau) : valider_url_distante => pouvoir déclarer des domaines distants et pas ...

  21 janvier 2019, par - Equipement

  Bonjour,

  La fonction valider_url_distante permet de déclarer des hosts distants :
  

  <span class="CodeRay"><span class="local-variable">$known_hosts</span> = pipeline(<span class="string"><span class="delimiter">'</span><span class="content">declarer_hosts_distants</span><span class="delimiter">'</span></span>, <span class="local-variable">$known_hosts</span>);
  </span>
  Télécharger

  C’est très bien, mais avec plusieurs centaines de hosts à déclarer (dont la liste varie dans le temps), cela devient compliqué à gérer.

  Serait-il possible d’avoir, en plus, la possibilité de déclarer des domaines distants ?

  Une première piste serait de pouvoir déclarer .example.com dans le pipeline pour inclure tous les *.example.com au lieu des les énumérer un par un.

  Une seconde piste consisterait à s’inspirer de la function need_proxy (via une constante avec la même syntaxe que pour le http_noproxy) :

  // Pour mémoire code actuel à conserver ...
  

  <span class="CodeRay">    <span class="local-variable">$is_known_host</span> = <span class="predefined-constant">false</span>;
      <span class="keyword">foreach</span> (<span class="local-variable">$known_hosts</span> <span class="keyword">as</span> <span class="local-variable">$known_host</span>) {
          <span class="local-variable">$parse_known</span> = <span class="predefined">parse_url</span>(<span class="local-variable">$known_host</span>);
          <span class="keyword">if</span> (<span class="local-variable">$parse_known</span>
            <span class="keyword">and</span> <span class="predefined">strtolower</span>(<span class="local-variable">$parse_known</span>[<span class="string"><span class="delimiter">'</span><span class="content">host</span><span class="delimiter">'</span></span>]) === <span class="predefined">strtolower</span>(<span class="local-variable">$parsed_url</span>[<span class="string"><span class="delimiter">'</span><span class="content">host</span><span class="delimiter">'</span></span>])) {
              <span class="local-variable">$is_known_host</span> = <span class="predefined-constant">true</span>;
              <span class="keyword">break</span>;
          }
      }
  </span>
  Télécharger

  // ... que l’on pourrait faire suivre de ce code (complètement inspiré de function need_proxy) :
  

  <span class="CodeRay">    <span class="keyword">if</span> (!<span class="local-variable">$is_known_host</span>) {
                  <span class="local-variable">$known_domaines</span> = _DECLARER_DOMAINES_DISTANTS;
   
                  <span class="local-variable">$known_domaines</span> = <span class="predefined">str_replace</span>(<span class="string"><span class="delimiter">"</span><span class="char">\n</span><span class="delimiter">"</span></span>, <span class="string"><span class="delimiter">"</span><span class="content"> </span><span class="delimiter">"</span></span>, <span class="local-variable">$known_domaines</span>);
                  <span class="local-variable">$known_domaines</span> = <span class="predefined">str_replace</span>(<span class="string"><span class="delimiter">"</span><span class="char">\r</span><span class="delimiter">"</span></span>, <span class="string"><span class="delimiter">"</span><span class="content"> </span><span class="delimiter">"</span></span>, <span class="local-variable">$known_domaines</span>);
                  <span class="local-variable">$known_domaines</span> = <span class="string"><span class="delimiter">"</span><span class="content"> </span><span class="local-variable">$known_domaines</span><span class="content"> </span><span class="delimiter">"</span></span>;
                  <span class="local-variable">$domain</span> = <span class="predefined">strtolower</span>(<span class="local-variable">$parsed_url</span>[<span class="string"><span class="delimiter">'</span><span class="content">host</span><span class="delimiter">'</span></span>]);
   
                  <span class="keyword">if</span> (<span class="predefined">strpos</span>(<span class="local-variable">$known_domaines</span>, <span class="string"><span class="delimiter">"</span><span class="content"> </span><span class="local-variable">$domain</span><span class="content"> </span><span class="delimiter">"</span></span>) !== <span class="predefined-constant">false</span>){
                      <span class="local-variable">$is_known_host</span> = <span class="predefined-constant">true</span>;
                  }
   
                  <span class="keyword">while</span> (<span class="predefined">strpos</span>(<span class="local-variable">$domain</span>, <span class="string"><span class="delimiter">'</span><span class="content">.</span><span class="delimiter">'</span></span>) !== <span class="predefined-constant">false</span>) {
                          <span class="local-variable">$domain</span> = <span class="predefined">explode</span>(<span class="string"><span class="delimiter">'</span><span class="content">.</span><span class="delimiter">'</span></span>, <span class="local-variable">$domain</span>);
                          <span class="predefined">array_shift</span>(<span class="local-variable">$domain</span>);
                          <span class="local-variable">$domain</span> = <span class="predefined">implode</span>(<span class="string"><span class="delimiter">'</span><span class="content">.</span><span class="delimiter">'</span></span>, <span class="local-variable">$domain</span>);
   
                          <span class="keyword">if</span> (<span class="predefined">strpos</span>(<span class="local-variable">$known_domaines</span>, <span class="string"><span class="delimiter">"</span><span class="content"> .</span><span class="local-variable">$domain</span><span class="content"> </span><span class="delimiter">"</span></span>) !== <span class="predefined-constant">false</span>) {
                              <span class="local-variable">$is_known_host</span> = <span class="predefined-constant">true</span>;
                          }
                  }
          } 
  </span>
  Télécharger

  Cordialement
  Equipement

• Anomalie #2381 : Corriger le niveau d’intertitre

  9 juin 2018, par b b

  Il y a des H2 dans la dist, qui introduisent des listes d’articles, de résultats, ou des blocs (forum), je pense qu’ils peuvent rester comme ça.

  Si le bloc de forum sous le texte de l’article reste en h2, il va se retrouver "au même niveau" qu’un intertitre en h2 donc, c’est pas top non ?