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Convert HEIC HEIF images to jpeg or png

   Author:       krabob at 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
   Date:         2024-01-17
   Readme:       http://aminet.net/gfx/conv/heif-convert.readme
   Downloads:    2

http://aminet.net/gfx/conv/heif-convert.lha

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

Contents of gfx/conv/heif-convert.lha

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]               383012  904740  42.3% -lh5- 976d Jan 17 22:18 heif-convert/dec265
[unknown]                 1469    1882  78.1% -lh5- a64f Jan 17 22:18 heif-convert/dec265.info
[unknown]               718114  718114 100.0% -lh0- aa00 Jan 17 22:19 heif-convert/example.heic
[unknown]               860204 1919760  44.8% -lh5- fa4f Jan 17 22:16 heif-convert/heif-convert
[unknown]                 1469    1882  78.1% -lh5- df5a Jan 17 22:17 heif-convert/heif-convert.info
[unknown]                 1119    2231  50.2% -lh5- b87c Jan 17 22:22 heif-convert/heif-convert.readme
[unknown]                  866    1214  71.3% -lh5- 4db6 Jan 17 22:22 heif-convert/heif-convert.readme.info
[unknown]               714844 1676508  42.6% -lh5- 2c81 Jan 17 22:17 heif-convert/heif-info
[unknown]                 1471    1882  78.2% -lh5- fe1c Jan 17 22:18 heif-convert/heif-info.info
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         9 files 2682568 5228213  51.3%            Jan 18 04:05