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• transcoding from amr to flac using JAVE(ffmpeg)

  25 avril 2012, par user824440

  I want to transcode amr audio files to flac using JAVE (http://www.sauronsoftware.it/projects/jave/). it uses ffmpeg to do the job.

  The transcoding procedure runs successfully on Windows but fails on Linux (centOS).

  I checked the JAVE code and found it uses the following command :

  ffmpeg -i 1.amr -vn -acodec flac -ac 1 -ar 8000 -f flac -y 1.flac

  the output is :

  FFmpeg version SVN-r11179, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  
    configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-memalign-hack --extra-ldflags=-static -lm -lz
  
  
  
  libavutil version: 49.5.0
  
  
  
  libavcodec version: 51.48.0
  
  
  
  libavformat version: 52.1.0
  
  
  
  built on Dec  7 2007 15:35:14, gcc: 4.1.2 20070626 (Red Hat 4.1.2-14)
  
  
  
  Input #0, amr, from '1.amr':
  
  
  
  Duration: N/A, bitrate: N/A
  
  
  
  Stream #0.0: Audio: samr / 0x726D6173, 8000 Hz, mono
  
  
  
  Input #1, amr, from '1.amr':
  
  
  
  Duration: N/A, bitrate: N/A
  
  
  
  Stream #1.0: Audio: samr / 0x726D6173, 8000 Hz, mono
  
  
  
  Output #0, flac, to '1.flacffmpeg':
  
  
  
  Stream #0.0: Audio: flac, 8000 Hz, mono, 64 kb/s
  
  
  
  Output #1, flac, to '1.flac':
  
  
  
  Stream #1.0: Audio: flac, 8000 Hz, mono, 64 kb/s
  
  
  
  Stream mapping:
  
  
  
  Stream #0.0 -> #0.0
  
  
  
  Stream #1.0 -> #1.0
  
  
  
  Unsupported codec (id=73728) for input stream #0.0

  So the problem might be unsuppported codec ? How to solve this ?
  Thanks.

• JPEG 2000 decoder for DCinema

  22 avril 2013, par Nicolas Bertrand

  JPEG 2000 decoder for DCinema
  Based on the 2007 GSoC project from Kamil Nowosad <k.nowosad@students.mimuw.edu.pl>
  
  Updated to current programming standards, style and many more small
  
  fixes by Diego Biurrun <diego@biurrun.de>.
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  

  • [DBH] Changelog
  • [DBH] doc/general.texi
  • [DBH] libavcodec/Makefile
  • [DBH] libavcodec/allcodecs.c
  • [DBH] libavcodec/avcodec.h
  • [DBH] libavcodec/jpeg2000.c
  • [DBH] libavcodec/jpeg2000.h
  • [DBH] libavcodec/jpeg2000dec.c
  • [DBH] libavcodec/jpeg2000dwt.c
  • [DBH] libavcodec/jpeg2000dwt.h
  • [DBH] libavcodec/mqc.c
  • [DBH] libavcodec/mqc.h
  • [DBH] libavcodec/mqcdec.c
  • [DBH] tests/fate/video.mak
  • [DBH] tests/ref/fate/jpeg2000-dcinema

• 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 :