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• Remove parts of a video automagically without reencode ?

  21 août 2022, par Sam

  I'm looking for a way to remove automatically the opening and ending parts of a video (credits) without reencode.

  


  If you need an example, take Game of Thrones : I'd need a way to automatically remove the GoT opening (with the theme music) and the ending part (with the credits and the HBO logo part).

  


  FFmpeg can do that, but the cut has to be manual and happens only at keyframes... which isn't precise enough for me.

  


  I thought that maybe there is a tool that allows to scan a video, and remove a part between two input frames (the start of opening frame, the end of opening frame)... etc, same thing for Ending.

  


  Thanks for the help !

  


• avcodec/snowenc : Don't pass int[2] as parameter declared as int[3]

  10 juillet 2022, par Andreas Rheinhardt

  avcodec/snowenc : Don't pass int[2] as parameter declared as int[3]
  check_block_inter() currently does this when calling check_block().
  
  This leads to a -Wstringop-overflow= warning when compiling with
  
  GCC 12.1.
  Given that the main part of the body of check_block() consists
  
  of an "if (intra)  ...  else  ... " which is true iff
  
  check_block() is not called from check_block_inter(),
  
  it makes sense to fix this by just inlining check_block()
  
  check_block_inter() and turning check_block() into a new
  
  check_block_intra() (with the inter parts removed, of course).
  This should also not make much of a difference for the generated code
  
  given that both check_block() as well as check_block_inter()
  
  are already marked as av_always_inline, so this commit follows
  
  this route to fix the issue.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/snowenc.c

• TS file not playing hls.js

  27 août 2019, par Mark Adrian Estaca

  Need some help. Video loads in browser but never starts playing. I’m using hls.js to stream m3u8 playlist to the browser. And I use FFmpeg to create ts and m3u8 files.

  For FFmpeg :

  ./ffmpeg -rtsp_transport tcp -i rtsp://user:password@ipaddress/axis-media/media.amp -vcodec copy -hls_time 4 -hls_list_size 4 -hls_wrap 4 -start_number 1 -y test.m3u8

  HTML Code :

    
  
       <code class="echappe-js">&lt;script src=&quot;https://cdn.jsdelivr.net/npm/hls.js@latest&quot;&gt;&lt;/script&gt;
       
  &lt;script&gt;<br />
  
       var video = document.getElementById('video');<br />
  
       if(Hls.isSupported()){<br />
  
          var hls = new Hls();<br />
  
          hls.loadSource('/images/live/test.m3u8');<br />
  
          hls.attachMedia(video);<br />
  
          hls.on(Hls.Events.MANIFEST_PARSED,function() {<br />
  
                video.play();<br />
  
           });<br />
  
        }<br />
  
        else if (video.canPlayType('application/vnd.apple.mpegurl')){<br />
  
           video.src = '/images/live/test.m3u8';<br />
  
           video.addEventListener('loadedmetadata',function() {<br />
  
                video.play();<br />
  
           });<br />
  
        }<br />
  
     &lt;/script&gt;