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• vvcdec : add dsp init and inv transform

  5 décembre 2023, par Nuo Mi

  vvcdec : add dsp init and inv transform
  Co-authored-by : Xu Mu <toxumu@outlook.com>
  
  Co-authored-by : Frank Plowman <post@frankplowman.com>
  
  Co-authored-by : Shaun Loo <shaunloo10@gmail.com>
  
  Co-authored-by : Wu Jianhua <toqsxw@outlook.com>
  

  • [DH] libavcodec/vvc/Makefile
  • [DH] libavcodec/vvc/vvcdsp.c
  • [DH] libavcodec/vvc/vvcdsp_template.c

• 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 :

  

  

  

• Problem with Linking FFMPEG Libraries in Visual Studio on Windows 10 [closed]

  14 mars 2024, par Dentricky73

  I'm facing an issue while trying to link FFMPEG libraries in Visual Studio on a Windows 10 OS. Specifically, Visual Studio seems to locate the headers correctly, but encounters difficulties in finding the associated libraries. Initially, I attempted to compile the FFMPEG SDK myself, but encountered problems with the library extensions, which ended with a Linux .o file instead of a Windows .lib. Subsequently, I downloaded a prebuilt version from here, but I'm still encountering errors.

  &#xA;

  In Visual Studio 2022, I've configured the following settings :

  &#xA;

  &#xA;

  Property > Configuration Properties > C/C++ > General > Additional Include Directories&#xA;C :\cmder\c++SDK\ffmpeg\include

  &#xA;

  &#xA;

  &#xA;

  Property > Configuration Properties > Linker > General > Additional Library Directories&#xA;C :\cmder\c++SDK\ffmpeg\lib

  &#xA;

  &#xA;

  &#xA;

  Property > Configuration Properties > Linker > Input > Additional Dependencies&#xA;avcodec.lib, avdevice.lib, avfilter.lib, avformat.lib, avutil.lib, postproc.lib, swresample.lib, swscale.lib

  &#xA;

  &#xA;

  Despite these configurations, Visual Studio fails to locate the FFMPEG libraries during the linking process. Could someone please provide guidance on how to resolve this issue and correctly link the FFMPEG libraries in Visual Studio on Windows ? Any help or insights would be greatly appreciated.

  &#xA;

  Specific Issues Encountered :

  &#xA;

  During the compilation and linking process in Visual Studio 2022, I encountered the following errors :

  &#xA;

  Error 1 : A value of type "const AVCodec *" cannot be used to initialize an entity of type "AVCodec *".&#xA;Error 2 : Identifier "av_free_packet" is undefined.&#xA;Error 3 : Class "AVStream" has no member "codec".&#xA;Error 4 : Class "AVFrame" has no member "owner".&#xA;Despite configuring the project settings to include the correct include directories and library dependencies, these errors persist.

  &#xA;

  Why Previous Attempts Didn't Meet My Needs :

  &#xA;

  My previous attempts to resolve these issues were unsuccessful because I couldn't pinpoint the root cause of the compilation and linking errors. While I ensured that the include directories and library dependencies were correctly configured in Visual Studio, the errors persisted, indicating that there may be underlying issues with the setup or compatibility between the FFMPEG SDK and Visual Studio environment.

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