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• avcodec/loco : Check for end of input in the first line

  25 septembre 2019, par Michael Niedermayer

  avcodec/loco : Check for end of input in the first line
  Fixes : Timeout (85sec -> 0.1sec)
  
  Fixes : 17634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5666410809786368
  Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
  
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/loco.c

• FFMPEG running in Command Line but not PHP

  17 avril 2013, par Freeman

  I am using ffmpeg build for windows to make video thumbnails . The command works well in command line but not from PHP exec method. am using PHP 5.2.11

  Here is the command.

  "E:/Documents and Settings/x/WINDOWS/ffmpeg" -itsoffset -4 -v "E:/Program Files/Apache Software Foundation/Apache2.2/htdocs/bs/files/videogal/c08c3d20eeb9083ed033577bd154cba6.flv" -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 "E:/Program Files/Apache Software Foundation/Apache2.2/htdocs/bs/files/gallery/8ff43b72b932d2a34e7a6733672ad4d6.jpg" 2>&1

  Can somebody help. I checked the permissions they seem fine. GD is installed.

  The error msg is 'E:/Documents' is not recognized as an internal or external command, operable program or batch file

  Am using forward slashes in my paths except when escaping double quotes

  The PHP function

  function ExtractThumb($in, $out)
  
  {$path=dbconf::FFMPEG_PATH;
  
      $thumb_stdout;
  
      $errors;
  
      $retval = 0;
  
   echo $in;
  
      // Delete the file if it already exists
  
      if (file_exists($out)) { unlink($out); }
  
  
  
      // Use ffmpeg to generate a thumbnail from the movie
  
      $cmd = "$path -itsoffset -4 -i $in -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 $out 2>&1";
  
     echo $cmd;
  
  
  
     exec($cmd, $thumb_stdout, $retval);
  
  
  
      // Queue up the error for processing
  
      if ($retval != 0) { $errors[] = "FFMPEG thumbnail generation failed"; }
  
  
  
      if (!empty($thumb_stdout))
  
      {
  
          foreach ($thumb_stdout as $line)
  
          {
  
              echo $line . "\n";
  
          }
  
      }
  
  
  
      if (!empty($errors))
  
      {
  
          foreach ($errors as $error)
  
          {
  
              echo $error . "\n";
  
          }
  
      }
  
  }

  funny enough if I run without the $in and $out absolute path this is what I get

  Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-cflags=-fno-common --enable-memalign-hack --enable-pthreads --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libfaac --enable-libgsm --enable-libx264 --enable-libschroedinger --enable-avisynth --enable-swscale --enable-gpl libavutil 49.12. 0 / 49.12. 0 libavcodec 52.10. 0 / 52.10. 0 libavformat 52.23. 1 / 52.23. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 built on Jan 13 2009 02:57:09, gcc: 4.2.4 822ae86a93810dade2843e822390d723.flv: no such file or directory

• Cut last n seconds from a video in linux command line [duplicate]

  13 juillet 2016, par J.Adler

  This question already has an answer here :

  • How do I create a new .mpeg from the last 10 seconds of an original using ffmpeg or MEncoder
    
    2 answers
    

  I wonder if there is some way to cut the last N seconds of video using the command line in Linux . If not, I could use a script as well.