Recherche avancée

Sur d’autres sites (8023)

• Creating buttons with Imagick

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

  A fellow called kakapo asked me to create a button with Imagick. He had an image of the button and a Photoshop tutorial but unfortunately the tutorial was in Chinese. My Chinese is a bit rusty so it will take a little longer to create that specific button

  The button in this example is created after this tutorial http://xeonfx.com/tutorials/easy-button-tutorial/ (yes, I googled “easy button tutorial”). The code and the button it creates are both very simple but the effect looks really nice.

  Here we go with the code :

  php

  < view plain text >

  1. < ?php
  2.  
  3. /* Create a new Imagick object */
  4. $im = new Imagick() ;
  5.  
  6. /* Create empty canvas */
  7. $im->newImage( 200, 200, "white", "png" ) ;
  8.  
  9. /* Create the object used to draw */
  10. $draw = new ImagickDraw() ;
  11.  
  12. /* Set the button color.
  13.   Changing this value changes the color of the button */
  14. $draw->setFillColor( "#4096EE" ) ;
  15.  
  16. /* Create the outer circle */
  17. $draw->circle( 50, 50, 70, 70 ) ;
  18.  
  19. /* Create the smaller circle on the button */
  20. $draw->setFillColor( "white" ) ;
  21.  
  22. /* Semi-opaque fill */
  23. $draw->setFillAlpha( 0.2 ) ;
  24.  
  25. /* Draw the circle */
  26. $draw->circle( 50, 50, 68, 68 ) ;
  27.  
  28. /* Set the font */
  29. $draw->setFont( "./test1.ttf" ) ;
  30.  
  31. /* This is the alpha value used to annotate */
  32. $draw->setFillAlpha( 0.17 ) ;
  33.  
  34. /* Draw a curve on the button with 17% opaque fill */
  35. $draw->bezier( array(
  36.           array( "x" => 10 , "y" => 25 ),
  37.           array( "x" => 39, "y" => 49 ),
  38.           array( "x" => 60, "y" => 55 ),
  39.           array( "x" => 75, "y" => 70 ),
  40.           array( "x" => 100, "y" => 70 ),
  41.           array( "x" => 100, "y" => 10 ),
  42.          ) ) ;
  43.  
  44. /* Render all pending operations on the image */       
  45. $im->drawImage( $draw ) ;
  46.  
  47. /* Set fill to fully opaque */
  48. $draw->setFillAlpha( 1 ) ;
  49.  
  50. /* Set the font size to 30 */
  51. $draw->setFontSize( 30 ) ;
  52.  
  53. /* The text on the */
  54. $draw->setFillColor( "white" ) ;
  55.  
  56. /* Annotate the text */
  57. $im->annotateImage( $draw, 38, 55, 0, "go" ) ;
  58.  
  59. /* Trim extra area out of the image */
  60. $im->trimImage( 0 ) ;
  61.  
  62. /* Output the image */
  63. header( "Content-Type : image/png" ) ;
  64. echo $im ;
  65.  
  66.  ?>

  And here is a few buttons I created by changing the fill color value :

  

  

  

• Compile ffmpeg and x264 with —enable-shared

  20 août 2016, par John Allard

  I am trying to compile ffmpeg with shared-library support, because when I compiled it statically it ended up making huge libraries, like libavcodec.a with 75MB in size. Any programs that I compiled against libavcodec was at least 50MB in size. This only happens on my RaspberryPi though, if I do

  ls -lsth $(which ffmpeg)

  on my RPI3 I get

  15M -rwxr-xr-x 1 pi pi 15M Jul 29 21:49 /home/pi/camiocam/cam/binaries/bin//ffmpeg

  While if I do the same on my macbook I get this output

  488 -r-xr-xr-x  1 john  admin   242K Jul 26 19:34 /usr/local/Cellar/ffmpeg/3.1.1/bin/ffmpeg

  To get shared library support I did the following

  # download and install libx264
  
  cd ~/ffmpeg_build
  
  git clone git://git.videolan.org/x264.git
  
  cd x264
  
  PATH="$HOME/bin:$PATH" ./configure --host=arm-unknown-linux-gnueabi  --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --enable-shared --disable-opencl
  
  # PATH="$HOME/bin:$PATH" make -j 8
  
  # PATH="$HOME/bin:$PATH" make install
  
  # ldconfig

  and ...

  # to install ffmpeg
  
  
  
  cd ~/ffmpeg_sources
  
  wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
  
  tar xjvf ffmpeg-snapshot.tar.bz2
  
  cd ffmpeg
  
  PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure --prefix="$HOME/ffmpeg_build" --arch=armel --target-os=linux --extra-cflags="-I$HOME/ffmpeg_build/include" --enable-pic  --extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin" --enable-gpl --enable-libx264 --enable-nonfree --enable-shared
  
  PATH="$HOME/bin:$PATH" make -j 8

  Which gives this output

  License: nonfree and unredistributable
  
  Creating config.mak, config.h, and doc/config.texi...
  
  config.h is unchanged
  
  libavutil/avconfig.h is unchanged
  
  libavcodec/bsf_list.c is unchanged
  
  libavformat/protocol_list.c is unchanged
  
  CC      libavcodec/libx264.o
  
  POD     doc/ffprobe.pod
  
  POD     doc/ffmpeg-all.pod
  
  POD     doc/ffserver-all.pod
  
  POD     doc/ffmpeg.pod
  
  POD     doc/ffprobe-all.pod
  
  POD     doc/ffserver.pod
  
  MAN     doc/ffprobe.1
  
  MAN     doc/ffmpeg.1
  
  MAN     doc/ffserver.1
  
  MAN     doc/ffmpeg-all.1
  
  MAN     doc/ffprobe-all.1
  
  MAN     doc/ffserver-all.1
  
  GEN     libavcodec/libavcodec.ver
  
  LD      libavcodec/libavcodec.so.57
  
  AR      libavcodec/libavcodec.a
  
  LD      libavformat/libavformat.so.57
  
  LD      libavfilter/libavfilter.so.6
  
  LD      libavdevice/libavdevice.so.57
  
  library.mak:102: recipe for target 'libavdevice/libavdevice.so.57' failed
  
  make: *** [libavdevice/libavdevice.so.57] Killed
  
  make: *** Deleting file 'libavdevice/libavdevice.so.57'

  I’ve tried to add the --enable-pic flag to the ffmpeg configure command but that made no difference.

• How can we use ffmpeg or fluent-ffmpeg with angular cli ?

  25 juillet 2019, par Nileshdeora1122

  How to use ffmpeg with angular2+ application ?

  im tring to use ffmpeg inside my angular application but it is throwing some error during importing ffmpeg in angular like this :

  // import * as ffmpeg from 'fluent-ffmpeg';

  but getting errors like this :

  ERROR in ./node_modules/fluent-ffmpeg/lib/ffprobe.js
  
  Module not found: Error: Can't resolve 'child_process' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/utils.js
  
  Module not found: Error: Can't resolve 'child_process' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/processor.js
  
  Module not found: Error: Can't resolve 'child_process' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/processor.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/capabilities.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/recipes.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/isexe/mode.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/isexe'
  
  ERROR in ./node_modules/isexe/windows.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/isexe'
  
  ERROR in ./node_modules/isexe/index.js
  
  Module not found: Error: Can't resolve 'fs' in '/home/pfacode1/angularApplication/careerfable2/node_modules/isexe'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/utils.js
  
  Module not found: Error: Can't resolve 'os' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/recipes.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/processor.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/capabilities.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/fluent-ffmpeg.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/options/misc.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib/options'
  
  ERROR in ./node_modules/which/which.js
  
  Module not found: Error: Can't resolve 'path' in '/home/pfacode1/angularApplication/careerfable2/node_modules/which'
  
  ERROR in ./node_modules/fluent-ffmpeg/lib/recipes.js
  
  Module not found: Error: Can't resolve 'stream' in '/home/pfacode1/angularApplication/careerfable2/node_modules/fluent-ffmpeg/lib'