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• 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

• Merge commit ’67351924fa91dea4339109100a4c0689f006581f’

  30 mars 2017, par Clément Bœsch

  Merge commit ’67351924fa91dea4339109100a4c0689f006581f’
  * commit ’67351924fa91dea4339109100a4c0689f006581f’ :
  
    Drop unreachable break and return statements
  Merged-by : Clément Bœsch <cboesch@gopro.com>
  

  • [DH] libavcodec/bmvvideo.c
  • [DH] libavcodec/hevc_sei.c
  • [DH] libavcodec/sanm.c
  • [DH] libavformat/rtpproto.c
  • [DH] libavformat/rtspdec.c
  • [DH] libavformat/smush.c
  • [DH] libavutil/opt.c

• Is it possible to merge multiple FFMPEG commands (cuts, slow down, watermark) into one in order to increase performance ?

  14 novembre 2022, par Nectarie PF

  I wrote a small piece of software in PHP, using FFMPEG commands via shell exec. The final purpose is to take a 7 seconds MP4 file from a GoPro and transform it in order to achieve a sort of boomerang effect :

  


  

  • crop the video to 1080 width/height

  


  


  ffmpeg -i ./files/video_small/$latestVideo -filter:v \"crop=1080:1080:420:0\" ./files/video_small/outcrop_$cod.mp4 2>&1");


  


  

  • first second should run normally

  


  


  ffmpeg.exe -t 1 -i ./files/video_small/outcrop_$cod.mp4 ./files/video_small/out1_$cod.mp4 2>&1");


  


  

  • the next two seconds will run at slow motion with a 2x factor

  


  


  ffmpeg.exe -ss 00:00:01 -t 2 -i ./files/video_small/outcrop_$cod.mp4 -filter_complex \"[0:v]setpts=2*PTS[v]\" -map \"[v]\" ./files/video_small/out2_$cod.mp4 2>&1");


  


  

  • the next second will speed up at 4x factor

  


  


  ffmpeg.exe -ss 00:00:03 -t 1 -i ./files/video_small/outcrop_$cod.mp4 -filter_complex \"[0:v]setpts=0.25*PTS[v]\" -map \"[v]\" ./files/video_small/out3_$cod.mp4 2>&1");


  


  

  • the next 2 seconds again slow motion

  


  


  ffmpeg.exe -ss 00:00:04 -t 2 -i ./files/video_small/outcrop_$cod.mp4 -filter_complex \"[0:v]setpts=2*PTS[v]\" -map \"[v]\" ./files/video_small/out4_$cod.mp4 2>&1");


  


  

  • final second again normal speed

  


  


  ffmpeg.exe -ss 00:00:06 -i ./files/video_small/outcrop_$cod.mp4 ./files/video_small/out5_$cod.mp4 2>&1");


  


  

  • concatenate the above parts to achieve the modified clip

  


  


  ffmpeg.exe -f concat -i ./files/video_small/files_$cod.txt -c copy  ./files/video_small/output1_$cod.mp4 2>&1");


  


  

  • then append the resulting clip in reverse

  


  


  ffmpeg -i ./files/video_small/output1_$cod.mp4 -filter_complex \"[0:v]reverse,fifo[r];[0:v][r] concat=n=2:v=1 [v]\" -map \"[v]\" ./files/video_small/output2_$cod.mp4 2>&1");


  


  

  • add watermark

  


  


  ffmpeg -i ./files/video_small/output2_$cod.mp4 -i ./files/watermark-video1080.png -filter_complex \"[0:v][1:v]overlay=(W-w)/2:10[outv]\" -map [outv] -c:v libx264 -crf 22 -preset veryfast ./files/video_small/output3_$cod.mp4 2>&1");


  


  

  • add audio (we can discard the original audio in any of the above steps)

  


  


  ffmpeg -i ./files/video_small/output3_$cod.mp4 -i ./files/video_small/sound-hip-hop.mp3 -map 0 -map 1:a -c:v copy -shortest ./files/video_small/output_final_$latestVideo 2>&1");


  


  Right now it runs ok, but I have a problem with performance, the whole process lasts about 50 seconds on my 8th gen i7.

  


  I am very new to the capabilities of ffmpeg and I was wondering if any of the below commands can be optimized or if any of the steps can be merged into one, as I can see the syntax is quite powerful.

  


  Thanks !

  


  I was expecting this to run a little bit faster, ideally half the time it takes right now.
As far as I have observed, the longest part is appending the resulting clip in reverse, perhaps I am adding something too heavy and unnecessary in the reverse filter.