libwebp-0.5.0-150000.3.7.1

- Add patches from upstream to fix a heap buffer overflow
  (boo#1215231, CVE-2023-4863):
  * 0001-Fix-invalid-incremental-decoding-check.patch
  * 0001-reduce-the-number-of-malloc_free-cycles-in-huffman.c.patch
  * 0002-Speedups-for-unused-Huffman-groups..patch
  * 0003-Fix-OOB-write-in-BuildHuffmanTable.patch

- Add libwebp-double-free.patch: Avoid a double free, upstream
  commit a486d800 (bsc#1210212 CVE-2023-1999).

- Update to new upstream release 0.3.1
  * Add incremental decoding support for images containing
  ALPH and ICCP chunks.
- Enable libwebpmux, libwebpdemux

- Update to new upstream release 0.3.0
  * WebPINewRGB/WebPINewYUVA accept being passed a NULL output buffer
  and will perform auto-allocation.
  * Default filter option is now "-strong -f 60"
  * Encoding speed-up for lossy methods 3 to 6
  * Alpha encoding can be done in parallel to lossy using
  `cwebp -mt ...`
  * Color profile, metadata (XMP/EXIF) and animation support in the
  container was finalized.
  * Various NEON assembly additions
- Tool updates / additions:
  * gif2webp added
  * vwebp given color profile & animation support
  * cwebp can preserve color profile / metadata with "-metadata"

- Update to version 0.2.1
  * libwebp: validate chunk size in ParseOptionalChunks
  * cwebp (windows): fix alpha image import on XP
  * autoconf/libwebp: enable dll builds for mingw
  * [cd]webp: always output windows errors
  * fix double to float conversion warning
  * cwebp: fix jpg encodes on XP
  * VP8LAllocateHistogramSet: fix overflow in size calculation
  * GetHistoBits: fix integer overflow
  * EncodeImageInternal: fix uninitialized free
  * fix the -g/O3 discrepancy for 32bit compile
  * fix the BITS=8 case
  * Make *InitSSE2() functions be empty on non-SSE2 platform
  * make *InitSSE2() functions be empty on non-SSE2 platform
  * make VP8DspInitNEON() public

- Update to version 0.2.0:
  * Add support for ARGB -> YUVA conversion for lossless decoder
  * Add stats for lossless and alpha encoding
  * Security related hardening: allocation and size checks
  * Add PAM output support to dwebp
  * Alpha channel encode/decode support
  * Lossless encoder/decoder
  * Add TIFF input support to cwebp
  * Incompatible changes:
  - The encode ABI has been modified to support alpha encoding
  - Deprecated function WebPINew() has been removed
  - Decode function signatures have changed to consistently use
    size_t over int/uint32_t
  - decode_vp8.h is no longer installed system-wide
  - cwebp will encode the alpha channel if present.
  * Add libtiff-devel BuildRequires for the new tiff input support.
  * Rename libwebp2 subpackage to libwebp4 (by changing lname
  defines), following upstreams soname bump (incl. baselibs.conf).
  * No reason to run autogen

- Rename webp-tools to libwebp-tools to follow scheme of other
  lib*-tools packages.

- add libtool as buildrequire to avoid implicit dependency

- update to 0.1.3:
  * Advanced decoding APIs.
  * On-the-fly cropping and rescaling of images.
  * SSE2 instructions for decoding performance optimizations on x86 based platforms.
  * Support Multi-threaded decoding.
  * 40% improvement in Decoding performance.
  * Add support for RGB565, RGBA4444 & ARGB image colorspace.
  * Better handling of large picture encoding.