Recherche avancée

Sur d’autres sites (13557)

• TS Files packet corrupt

  16 août 2023, par juni

  when I join a video file with an audio file in ffmpeg to form an MPEG-TS file apparently it works, but when I play it I get this Packet error and it keeps skipping some frames of the video

  


  I'm using fragmented video and audio, and this command to join

  


  CODE :

  


  subprocess.run([
    "ffmpeg", "-y", "-i", _segment_output_v_, 
    "-i", _segment_output_a_, "-map", "0:v", "-streamid", "0:500",
    "-map", "1:a", "-streamid", "1:501",
    "-mpegts_pmt_start_pid", "100", "-c", "copy", "-copyts",
    _fragment_ts_
])


  


  curiously if I do the process with encode by ffmpeg the video plays normally, but I would like to do it without encode

  


  ERROR :

  


  [hls @ 000001214d76f880] Opening 'HD_2000k.m3u8' for reading
[hls @ 000001214d76f880] Skip ('#EXT-X-VERSION:6')sq=    0B f=0/0
[hls @ 000001214d76f880] Opening '000.ts' for reading
[hls @ 000001214d76f880] Opening '001.ts' for reading
[NULL @ 000001214d7abf80] non-existing SPS 0 referenced in buffering period
[h264 @ 000001214d7ad440] non-existing SPS 0 referenced in buffering period
Input #0, hls, from 'master.m3u8':
  Duration: N/A, start: 53623.588444, bitrate: N/A
  Program 0
    Metadata:
      variant_bitrate : 0
  Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn
    Metadata:
      variant_bitrate : 0
  Stream #0:1(por): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp
    Metadata:
      variant_bitrate : 0
[http @ 000001214d774240] Opening 'HD_2000k.m3u8' for reading
[hls @ 000001214d76f880] Skip ('#EXT-X-VERSION:6') sq=    0B f=0/0
[http @ 000001214d776b40] Opening '002.ts' for reading
[mpegts @ 000001214d790200] Packet corrupt (stream = 0, dts = 4826658160).
[hls @ 000001214d76f880] Packet corrupt (stream = 0, dts = 4826655160).
[http @ 000001214d779440] Opening '003.ts' for reading
[hls @ 000001214d76f880] Opening '003.ts' for reading


  


  I would like to join video and audio in ffmpeg in ts output format for playback in hls

  


• MPEG-DASH MPD file not playing correctly

  24 juin 2017, par CMOS

  So I am working on generating a very simple MPD manifest file for my MPEG-DASH videos and I cannot figure out what is wrong. Here is my current manifest file

  <?xml version="1.0" ?>
  
  <mpd xmlns="urn:mpeg:dash:schema:mpd:2011" minbuffertime="PT1.500S" type="static" mediapresentationduration="PT0H9M21.795S" maxsegmentduration="PT0H0M1.001S" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011">
  
      <period>
  
          <baseurl>https://mysite/uploads/sources/resolution_640/bitrate_1400/</baseurl>
  
          <adaptationset mimetype="video/mp4">
  
              <contentcomponent contenttype="video"></contentcomponent>
  
              <representation bandwidth="1400000">
  
                <segmentlist duration="119">
  
                  <initialization sourceurl="https://mysite/uploads/sources/resolution_640/bitrate_1400/640x360_1400Kpbs_0.mp4"></initialization>
  
                  <segmenturl media="https://mysite/uploads/sources/resolution_640/bitrate_1400/640x360_1400Kpbs_1.mp4"></segmenturl>
  
                  <segmenturl media="https://mysite/uploads/sources/resolution_640/bitrate_1400/640x360_1400Kpbs_2.mp4"></segmenturl>
  
                  <segmenturl media="https://mysite/uploads/sources/resolution_640/bitrate_1400/640x360_1400Kpbs_3.mp4"></segmenturl>
  
                </segmentlist>
  
              </representation>
  
          </adaptationset>
  
      </period>
  
  </mpd>

  This MPD file validates using every validator I can find. The urls for the segments are obscured for security reasons but they are all open, public and viewable individually. But when I try to run the manifest file, depending on the player I get. "No supported source found within manifest" or simply nothing happens.

  Any idea how this could be wrong ? I am currently using media url’s as absolute paths but I have also tried paths relative to the BaseURL with no luck. Any info on how I can make a very simple MPEG-Dash manifest structure would be great. I am using FFMPEG to split my video up into 150 frame segments. Thanks !

• How to convert mp4 files into mp3 on button click using ffmpeg/php ?

  4 juin 2019, par flash

  I am working on a php code as shown below where I am converting mp4 files into mp3 using system command ffmpeg (in the case statement below).

  <?php 
  
  
  
  $mp4_files = preg_grep('~\.(mp4)$~', scandir($src_dir)); 
  
  
  
  foreach ($mp4_files as $f)
  
   {
  
  
  
       $parts = pathinfo($f);
  
       switch ($parts['extension'])
  
       {
  
           case 'mp4' :
  
               $filePath = $src_dir . DS . $f;
  
               system('ffmpeg -i ' . $filePath . ' -map 0:2 -ac 1 ' . $destination_dir . DS . $parts['filename'] . '.mp3', $result);  // Through this command conversion happens. 
  
       }
  
   }
  
  
  
  $mp3_files = preg_grep('/^([^.])/', scandir($destination_dir));
  
  
  
  ?>

  After conversion, mp3 files goes into destination_dir. If new mp4 file arrives in $src_dir, the conversion usually happen on refresh of a page.

  Once the conversion is complete, I am parsing everything into table as shown below :

  <table>
  
     <tr>
  
        <th style="width:8%; text-align:center;">House Number</th>
  
        <th style="width:8%; text-align:center;">MP4 Name</th>
  
        <th style="width:8%; text-align:center;">Action/Status</th>
  
     </tr>
  
     &lt;?php
  
        $mp4_files = array_values($mp4_files);
  
        $mp3_files = array_values($mp3_files);
  
        foreach ($programs as $key => $program)    { 
  
           $file = $mp4_files[$key];     
  
           $file2 = $mp3_files[$key];   // file2 is in mp3 folder
  
        ?>
  
     <tr>
  
        <td style="width:5%; text-align:center;"><span style="border: 1px solid black; padding:5px;">&lt;?php echo basename($file, ".mp4"); ?></span></td> 
  
        <td style="width:5%; text-align:center;"><span style="border: 1px solid black; padding:5px;">&lt;?php echo basename($file); ?></span></td>              
  
        <td style="width:5%; text-align:center;"><button style="width:90px;" type="button" class="btn btn-outline-primary">Gotd>  
  
     </button></td></tr>
  
     &lt;?php } ?>
  
  </table>

  Problem Statement :

  I am wondering what changes I should make in the php code above that on click of a Go button, conversion of individual mp4 into mp3 happen.

  On clicking of Go button, individual mp3 file (from an mp4) belonging to an individual row should go inside destination directory ($destination_dir).