Short:        Convert HEIC HEIF images to jpeg or png
Author:       krabob@online.fr (Vic Ferry)
Uploader:     krabob online fr (Vic Ferry)
Type:         gfx/conv
Version:      1.17.6
Architecture: m68k-amigaos >= 3.0.0
Distribution: Aminet

 Port of the conversion tool from libheif 
 (https://github.com/strukturag/libheif/releases).
  ... for fast Amigas with FPU and more than 32Mb Ram.
 
 HEIF files is the new standard for photos created with Android and iOS. 
They contain one or more HEVC/H265 images, usually using .heic extension.

 heif-convert is a conversion tool which is part of the libheif sources. 
 It allows to convert heic images to the more common jpeg or png format. 
 
 If you have a modern Android phone plugged into an Amiga USB port, 
 and retreive photo using MTP protocol, you will need this to see HEIC images.
 
 you may install with:
  >copy heif-convert c:
 
 use is simple:
 
   >heif-convert example.heic 
   ... will convert to jpg by default
   >heif-convert example.heic -o example.png
   ... will convert to png.

 heif-info and dec265 are extra tools that was also parts of libheif
 so they are gladly included.
 
  This port could only be compiled for high speed 68040/68060 compatible Amigas with FPU.
 Yet , don't expect speed: H265 fpu decoding is slower than jpg, and usually
 heic images produced by phones has 4000x3000 pixels or more. 

 a piStorm with rPi3 take one minute to convert such image.
 a 68060 50Mhz would probably take 6 minutes.
 (untested on vampire.) UAE intel with 68060 JIT takes 6 seconds.
 
  This port could only be compiled for high speed 68040/68060 compatible Amigas 
 with FPU, using the excellent bebbo gcc6.5 compiler.
 
 Developer port notes:
 Due to the fact gcc bebbo have no options to create Amiga shared libraries (yet),
 I'm giving up my initial plans to make a legit heif.library ,and a datatype class.
 
  along with libheif, libs statically linked are:
  -libde265
  -libjpeg
  -libpng
  -zlib
  each are released with their respective opensource licences.
  
  The sources for this release and more developper notes can be found here:
  https://github.com/krabobmkd/amigagcc6ports