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• ffmpeg converter php script not working as expected

  8 juillet 2012, par mintuz

  I have been looking into a php video converter method and have followed a tutorial on how to get one set up. It can read the source video file fine, my script shows an md5, fps rate, bit rate etc but it does not create the destination file. Any suggestions on why my code is not working.

  I have tried both system() ; and exec() ; commands, both do not work and safe_mode is off. I have also tried a more basic command

  "/usr/bin/ffmpeg -i /home/mintuz/video.avi /var/www/video.flv"

  This command however works through the terminal.

  <?php 
  
  define('FFMPEG_LIBRARY', '/usr/bin/ffmpeg');
  
  
  
  //ALTER STUFF HERE
  
  $srcFile = "/home/mintuz/video.avi"; //source file
  
  $destFile = "/var/www/video.flv"; //destination file
  
  
  
  
  
  if (strpos($srcFile, '.avi'))
  
  {
  
      $type = "avi";
  
      echo $type;
  
  }
  
  
  
  if (strpos($srcFile, '.mp4'))
  
  {
  
      $type = "mp4";
  
      echo $type;
  
  }
  
  
  
  if (strpos($srcFile, '.mov'))
  
  {
  
      $type = "mov";
  
      echo $type;
  
  }
  
  
  
  //-------------------------------------------------------------------------------------------------------------------
  
  // Create our FFMPEG-PHP class 
  
  $ffmpegObj = new ffmpeg_movie($srcFile); 
  
  
  
  // Save our needed variables 
  
  $srcWidth = makeMultipleTwo($ffmpegObj->getFrameWidth()); 
  
  echo "<br />".$srcWidth."<br />";
  
  
  
  $srcHeight = makeMultipleTwo($ffmpegObj->getFrameHeight()); 
  
  echo $srcHeight."<br />";
  
  
  
  $srcFPS = $ffmpegObj->getFrameRate();
  
  echo $srcFPS."<br />"; 
  
  
  
  $srcAB = intval($ffmpegObj->getAudioBitRate()/1000);  
  
  $srcAR = $ffmpegObj->getAudioSampleRate();  
  
  
  
  // Call our convert using exec() 
  
  $cmd = FFMPEG_LIBRARY." -i ".$srcFile." -ar ".$srcAR." -ab ".$srcAB." -f flv -s ".$srcWidth."x".$srcHeight." ".$destFile;
  
  system($cmd); 
  
  
  
  echo "Source File MD5 : ".md5_file($srcFile)."<br />";
  
  echo "Destination File MD5 : ".md5_file($destFile);
  
  
  
  // Make multiples function 
  
  function makeMultipleTwo ($value) 
  
  { 
  
      $sType = gettype($value/2); 
  
      if($sType == "integer") 
  
      { 
  
          return $value; 
  
      } else { 
  
          return ($value-1); 
  
      } 
  
  }
  
  ?>

• Assign output to a variable instead to a Output file

  25 juin 2013, par rash

  Here is the Python code :

  import subprocess 
  
  
  
  cmnd = ["ffmpeg", "-i", "/home/xincoz/test/connect.flv", "-acodec", "copy", "-ss", "00:00:00", "-t", "00:00:30", "/home/xincoz/test/output.flv"]
  
  
  
  subprocess.call(cmnd)

  Here I get the 30sec long video output file output.flv from connect.flv video. But i want to store that 30sec long binary data in a variable instead of copying that into an output file.
  How can I able to do that ?

  Please help me. Thanks a lot in advance.

• How can I get FFmpeg to locate installed libraries when —sysroot is pointing to another directory ?

  3 février 2013, par Xaero Degreaz

  I've been going at this, literally for days. I'm trying to build FFmpeg with libmp3lame for use in an Android application. The build script sets a --sysroot flag that points to the Android NDK directory necessary to build these libraries in a way that Android can use them.

  The problem comes when I add the flag to --enable-libmp3lame ; I get ERROR: libmp3lame >= 3.98.3 not found during the build start up. I know that LAME, and it's libraries are installed, because I can just run ./configure --enable-libmp3lame manually and the configuration launches without a hitch, and shows that libmp3lame is enabled for this build. However, building like this will simply not work for what I need it for, since I need the Android NDK to do some work.

  I've tracked the problem down to the fact that this build script is declaring the sysroot, and through some research, I've tried adding -Luser/include, -L/user/includeto the extra cflags, and ldflags (which I've read is the default search location for gcc). I've tried several other things as well, but I'm confident that someone out here can help with this specific problem. This entire build script is as follows :

  Extra info :

  • Build OS : Ubuntu 11.10
  • FFmpeg Ver : Latest from git
  • LAME Ver : 3.9.x
  • Android NDK : r7

  build.sh

  #!/bin/bash
  
  
  
  if [ "$NDK" = "" ]; then
  
      echo NDK variable not set, assuming ${HOME}/android-ndk
  
      export NDK=${HOME}/android-ndk
  
  fi
  
  
  
  SYSROOT=$NDK/platforms/android-3/arch-arm
  
  # Expand the prebuilt/* path into the correct one
  
  TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/*-x86`
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  
  
  rm -rf build/ffmpeg
  
  mkdir -p build/ffmpeg
  
  cd ffmpeg
  
  
  
  # Don't build any neon version for now
  
  for version in armv5te armv7a; do
  
  
  
          DEST=../build/ffmpeg
  
          FLAGS="--target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm"
  
          FLAGS="$FLAGS --sysroot=$SYSROOT"
  
          FLAGS="$FLAGS --soname-prefix=/data/data/net.smartnotes/lib/"
  
          FLAGS="$FLAGS --enable-shared --disable-symver"
  
          FLAGS="$FLAGS --enable-small --optimization-flags=-O2"
  
          FLAGS="$FLAGS --disable-everything --enable-protocol=file"
  
          FLAGS="$FLAGS --enable-libmp3lame --enable-encoder=nellymoser"
  
  
  
          case "$version" in
  
                  neon)
  
                      EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"
  
                      EXTRA_LDFLAGS="-Wl,--fix-cortex-a8"
  
                      # Runtime choosing neon vs non-neon requires
  
                      # renamed files
  
                      ABI="armeabi-v7a"
  
                      ;;
  
                  armv7a)
  
                      # I have tried many things here.
  
                      EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp"
  
                      EXTRA_LDFLAGS=""
  
                      ABI="armeabi-v7a"
  
                      ;;
  
                  *)
  
                      # I have tried many things here.
  
                      EXTRA_CFLAGS="-Luser/include"
  
                      EXTRA_LDFLAGS=""
  
                      ABI="armeabi"
  
                      ;;
  
          esac
  
          DEST="$DEST/$ABI"
  
          FLAGS="$FLAGS --prefix=$DEST"
  
  
  
          mkdir -p $DEST
  
          echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" > $DEST/info.txt
  
          ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" | tee $DEST/configuration.txt
  
          [ $PIPESTATUS == 0 ] || exit 1
  
          make clean
  
          make -j4 || exit 1
  
          make install || exit 1
  
  
  
  done