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• Trying to convert an RTSP stream to a HSL file, but get a "Failed to Open Segment" error

  1er juin 2021, par Alvydas Juodikis

  These are the linux commands I ran on ubuntu 20.04 to convert an rtsp stream to a HLS file. I was trying to then display it onto my html webserver to run a live video but I'm stuck at an error.

  


  ffmpeg -fflags nobuffer \&#xA; -rtsp_transport tcp \&#xA; -i <my rtsp="rtsp" url="url"> \&#xA; -vsync 0 \&#xA; -copyts \&#xA; -vcodec copy \&#xA; -movflags frag_keyframe&#x2B;empty_moov \&#xA; -an \&#xA; -hls_flags delete_segments&#x2B;append_list \&#xA; -f segment \&#xA; -segment_list_flags live \&#xA; -segment_time 0.5 \&#xA; -segment_list_size 1 \&#xA; -segment_format mpegts \&#xA; -segment_list Home/Desktop/fmpegsolution/index.m3u8 \&#xA; -segment_list_type m3u8 \&#xA; -segment_list_entry_prefix Home/Desktop/fmpegsolution/ \&#xA; Home/Desktop/fmpegsolution/%3d.ts&#xA;</my>

  


  I'm using an example from this link :
https://girishjoshi.io/post/ffmpeg-rtsp-to-hls/

  


  I try to generate my file into a directory located in my desktop called fmpegsolution (hence the output path Home/Desktop/fmpegsolution)

  


  The error :

  


  When running this on terminal, the error comes out to :
[segment @ 0x558c82e11ec0] Opening 'Home/Desktop/fmpegsolution/000.ts' for writing [segment @ 0x558c82e11ec0] Failed to open segment 'Home/Desktop/fmpegsolution/000.ts' Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory

  


  My issue is related to the folder or directory but it definitely exists. I even tried creating a "%3d.ts" blank file (000.ts) but that had no effect. Could use some help. Thanks for your time.

  


• FFMPEG is not working centos linux server

  18 mars 2015, par User

  I am using FFMPEG for video thumbnails creation,

  I have downloaded FFMPEG (ffmpeg-2.4.2.tar.bz2) and installed in server.

  located in

  /usr/bin/ffmpeg

  and used in this below code :

  if($extension === 'mp4' OR $extension == 'MP4' )
  
  {
  
  $video = $timestamp.$imagename;
  
  $videoname=substr($imagename,0, -4).$timestamp;
  
  $image = "sites/default/files/content_images/{$videoname}-thumb.jpg";
  
  
  
  var_dump($video);
  
  
  
  $cmd="/usr/bin/ffmpeg -i /opt/lampp/htdocs/mydashboard/sites/default/files/content_videos/".$video." -ss 00:00:14.435 -f image2 -vframes 1 /opt/lampp/htdocs/mydashboard/sites/default/files/content_images/$videoname-thumb.jpg";
  
  
  
  $cmdstr = $cmd;
  
  $locale = 'en_IN.UTF-8';
  
  setlocale(LC_ALL, $locale);
  
  putenv('LC_ALL='.$locale);
  
  echo exec($cmd);

  but this command not working as i expect..

  $cmd="/usr/bin/ffmpeg -i /opt/lampp/htdocs/mydashboard/sites/default/files/content_videos/".$video." -ss 00:00:14.435 -f image2 -vframes 1 /opt/lampp/htdocs/mydashboard/sites/default/files/content_images/$videoname-thumb.jpg";

  issue was video thumbnail is not created,when we upload videos.

  any help great appreciation

• Converting video with ffmpeg from a script not in the root folder

  30 octobre 2017, par Daniel Ormerod

  I am using ffmpeg to convert videos, create thumbnails etc.

  I made the below function to convert a video and when I run it in a script in the root folder it converts ok.

  However, I am using ajax to upload the video and the script is located /ajax/upload-video.php and when I run it in that folder it fails to convert.

  I have tried sending the $src and $dest up with ../ before the filenames to go back a folder but it isn’t working.

  Can anybody help ?

  Do I need to add something to the $command line to tell it to go back a folder ?

  These are the variables being used in the function :

  $ffmpegpath = 'ffmpeg.exe';
  
  $src = 'videos/video1.wmv';
  
  $dest = 'videos/video1.mp4';

  I have tried :

  $ffmpegpath = 'ffmpeg.exe';
  
  $src = '../videos/video1.wmv';
  
  $dest = '../videos/video1.mp4';

  And the function :

  function convert_video($src, $dest) {
  
  
  
      global $ffmpegpath;
  
  
  
      if (!file_exists($src)) {
  
  
  
          echo '<p>The file does not exist</p>';
  
  
  
      } else {
  
  
  
          $command = "$ffmpegpath -i $src $dest";
  
  
  
          @exec($command, $ret);
  
  
  
          if (!file_exists($dest)) {
  
  
  
              echo '<p>The file failed to create</p>';
  
  
  
          } else {
  
  
  
              if (filesize($dest)==0) {
  
  
  
                  echo '<p>The file created but has not filesize</p>';
  
  
  
              } else {
  
  
  
                  echo '<p>File Created Successfully</p>';
  
  
  
              }
  
  
  
          }
  
  
  
      }
  
  
  
  }