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• pkg-config cant find libraries on ffmpeg build (linux)

  29 décembre 2018, par Rafael Lima

  I’m trying to build ffmpeg for android on ubuntu...

  -I've cross-compiled all the dependencies I need for my configuration
  
  -I've set up the configuration parameters

  but ./configure keep saying

  ERROR: librtmp not found using pkg-config

  I’ve tested and if I remove --enable-librtmp it will configure complain about other library. The thing is I i build all libs myself. So I’m sure it is present and at right folder.

  I’m not linux/compiler specialist and so far i’ve spend more than 10 days to get everything i need to this project rightly done. I know i can simple modify the configure file under ffmpeg and remove the pkg-config check but this isn’t the solution I’m looking for

  the command i run is :

  ./configure --prefix=$PREFIX \
  
    --arch=${ARCH}\
  
      --cpu=${CPU} \
  
      --cross-prefix=$CROSS_PREFIX \
  
      --enable-cross-compile \
  
      --sysroot=$SYSROOT \
  
      --target-os=linux \
  
      --sysinclude=$NDK/sysroot/usr/include \
  
      --pkg-config=$(which pkg-config) \
  
      --pkg-config-flags="--static" \
  
      --enable-pic \
  
      --enable-gpl \
  
      --enable-nonfree \
  
      \
  
      --disable-shared \
  
      --enable-static \
  
      \
  
      --enable-ffmpeg \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      \
  
      --enable-librtmp \
  
      --enable-zlib \
  
      --enable-mediacodec \
  
      --enable-libx264 \
  
      --enable-libfdk-aac\
  
      --enable-libfreetype\
  
      --enable-libmp3lame\
  
      --enable-openssl\
  
      --enable-libfontconfig\
  
      --enable-bsf=aac_adtstoasc \
  
      \
  
      --disable-doc \
  
      $ADDITIONAL_CONFIGURE_FLAG

  I would like to know which tests pkg-config do to detect if any lib is installed ? and how can i show it the libs i need are really present

  =========UPDATE=========

  ${PREFIX} stands for build_dir under which i’ve a folder lib/pkgconfig with many .pc files including librtmp.pc. so why it can detect the others but not this one ? i checked the content of the file and seams to be right, similar to others at same folder

• Cannot find the class in php oop [duplicate]

  30 décembre 2018, par mr stark

  This question already has an answer here :

  • PHP class not found when using namespace
    
    2 answers
    

  I’m trying to make a class for video streaming with FFMpeg Php package.

  I’m getting this error on browser :

  Fatal error : Uncaught Error : Class ’Classes\Video’ not found in C :\xampp\htdocs\php\index.php:5 Stack trace : #0 main thrown in C :\xampp\htdocs\php\index.php on line 5

  this is my index.php :

    use Classes\Video;
  
  
  
    $video = new Video();
  
  
  
    $video->videoStreaming("video.mp4",320,240,"myVideo","WMV");

  and Video in Classes directory :

      namespace Classes;
  
      use FFMpeg\Coordinate\Dimension;
  
      use FFMpeg\FFMpeg;
  
      use FFMpeg\Format\Video\WMV;
  
      require "../vendor/autoload.php";
  
  
  
      class Video
  
      {
  
          private $ffmpeg;
  
          private $video;
  
  
  
  public function __construct()
  
  {
  
      $this->ffmpeg = FFMpeg::create([
  
          'ffmpeg.binaries' => 'C:\ffmpeg\ffmpeg.exe',
  
          'ffprobe.binaries' => 'C:\ffmpeg\ffprobe.exe',
  
          'timeout' => 3600,
  
          'ffmpeg.threads' => 12,
  
      ]);
  
  }
  
  
  
  public function videoStreaming($videoPath,$width,$height,$newName,$newExtension)
  
  {
  
      $this->video = $this->ffmpeg->open($videoPath);
  
      if ($width && $height) {
  
          $this->video->filters()->resize(new Dimension($width,$height))->synchronize();
  
      }
  
      $this->video->save(new WMV(), $newName . $newExtension);
  
  }
  
  
  
      }

• FATE Ends the Mac

  8 juin 2010, par Multimedia Mike — FATE Server

  Did you know Mac OS X can even blue-screen ? To be fair, it doesn’t actually present a blue screen. But when Mac OS X encounters a kernel panic, it looks like this :

  
  
  

  True to form, Mac just has to be prettier and glossier than other operating systems, even in the area of system crashes.

  The reason I bring this up is that the FATE system is bringing down my Mac. My Mac Mini is reliably dying every single time I try to execute my FATE client Python script. Maybe the weather is getting too warm.

  Update, 2010-6-8 : Following advice in the comments, I tried to run Memtest86 on the Mac Mini in question. I couldn’t get the machine to boot the CD I made. As an alternative, I turned the machine off and let it rest for a night. In the morning, I turned it on and ran the FATE client script. It’s working for now.