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• Typesetting

  9 juin 2010, par Mikko Koppanen — Imagick, PHP stuff

  Ever had the situation where you have a piece of string which you need to overlay on an image ? Maybe a situation where the area reserved for the string is known in pixels but you need to know the font size to fill most of the area ? Think no more !

  Here is a small example of how to fit a certain piece of a string on to an area of which you know the width and the height or only the width. The magic happens through the ImageMagick CAPTION : format. You can see from the example images how the parameters actually affect the image.

  php

  < view plain text >

  1. < ?php
  2.  
  3. /* How wide is our image */
  4. $image_width = 200 ;
  5.  
  6. /* Give zero for autocalculating the height */
  7. $image_height = 200 ;
  8.  
  9. /* Specify the text */
  10. $text = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
  11.     Mauris lectus mi, mattis non, euismod vel, sagittis nec, ipsum." ;
  12.  
  13. /* Instanciate imagick */
  14. $im = new Imagick() ;
  15.  
  16. /* Create new image using caption : pseudo format */
  17. $im->newPseudoImage( $image_width, $image_height, "caption :" . $text ) ;
  18.  
  19. /* Put 1px border around the image */
  20. $im->borderImage( ’black’, 1, 1 ) ;
  21.  
  22. /* PNG format */
  23. $im->setImageFormat( "png")  ;
  24.  
  25. /* Output */
  26. header( "Content-Type : image/png" ) ;
  27. echo $im ;
  28.  
  29.  ?>

  Here is image with width 100 and height 0 :

  

  Width 100 Height 50 :

  

  Width 200 Height 200 (as you can see the font size is now larger) :

  

• FFmpeg compile for Android (configure, make)

  11 août 2013, par manutd

  I want to compile ffmpeg for Android ver.
  But everytime I try, I can't compile the source of ffmpeg.
  I think my configuration option may be invalid.

  I used this script for configure.

  #!/bin/sh
  
  NDK_PATH=$HOME/android-ndk-r8
  
  PREBUILT=$NDK_PATH/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86
  
  
  
  LDFLAGS="-Wl,-T,$PREBUILT/armelf_linux_eabi.x -Wl,-rpath-link=$NDK_PATH/platforms/android-8/arch-arm/usr/lib \
  
       -L$NDK_PATH/platforms/android-8/arch-arm/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtbegin.o \
  
       $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtend.o -lc -lm -ldl"
  
  COMMON_CONFIG="\
  
            ./configure --target-os=linux \
  
            --arch=arm \
  
            --enable-cross-compile \
  
            --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
            --as=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
            --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
            --sysinclude=$NDK_PATH/platforms/android-8/arch-arm/usr/include \
  
            --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
            --extra-ldflags=\"$LDFLAGS\" \
  
            --extra-cflags=-I$NDK_PATH/platforms/android-8/arch-arm/usr/include \
  
  
  
  eval "$COMMON_CONFIG"
  
  if [ $? -ne 0 ]; then
  
    exit 1
  
  fi

  I have to give compiler a new header file path (by —extra-cflags) because when I typed 'make', compiler didn't know where are header files (like math.h, ctime.h)

  After configure using this scripts and type 'make', I got these error.

  CC  libavdevice/alldevices.o
  
  In file included from /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/stdlib.h:42,
  
               from ./libavutil/common.h:35,
  
               from ./libavutil/avutil.h:126,
  
               from libavdevice/avdevice.h:22,
  
               from libavdevice/alldevices.c:22:
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/strings.h:49: warning: redundant redeclaration of 'index'
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/string.h:47: note: previous declaration of 'index' was here
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/strings.h:50: warning: redundant redeclaration of 'strcasecmp'
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/string.h:57: note: previous declaration of 'strcasecmp' was here
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/strings.h:51: warning: redundant redeclaration of 'strncasecmp'
  
  /Users/gyeongmingim/android-ndk-r8/platforms/android-8/arch-arm/usr/include/string.h:58: note: previous declaration of 'strncasecmp' was here
  
  In file included from ./libavutil/internal.h:178,
  
               from ./libavutil/common.h:342,
  
               from ./libavutil/avutil.h:126,
  
               from libavdevice/avdevice.h:22,
  
               from libavdevice/alldevices.c:22:
  
  ./libavutil/libm.h:62: error: static declaration of 'lrint' follows non-static declaration
  
  ./libavutil/libm.h:69: error: static declaration of 'lrintf' follows non-static declaration
  
  ./libavutil/libm.h:76: error: static declaration of 'round' follows non-static declaration
  
  ./libavutil/libm.h:90: error: static declaration of 'trunc' follows non-static declaration
  
  make: *** [libavdevice/alldevices.o] Error 1

  What is the wrong ?
  Does my configuration have wrong info ? or any missing flag ?

  OS : Mac Lion
  Android-ndk ver : android-ndk-r8

• Revision 36958 : Petite mise à jour de base de donnée... Pixelformat n’est pas un int mais ...

  5 avril 2010, par kent1@… — Log

  Petite mise à jour de base de donnée... Pixelformat n’est pas un int mais un string
  On ne refile pas de valeurs hallucinantes à l’encodeur non plus