• transcoding from existing WavPack files (with tag copy)
• option to verify WavPack file integrity on creation (-v)
• use temporary files for safer overwriting
• detect UTF-16LE encoding for tag text files (mostly a Windows thing)
• transition to Visual Studio 2008 and 64-bit version (Windows)
• option to allow up to 16 MB APEv2 tag data (--allow-huge-tags)
• option for wvunpack to suppress audio decoding (useful for extracting only tags with -cc and -xx) (-n)
• experimental, undocumented option to store float16 and float24 audio data as integers (--store-floats-as-ints)
• allow channel-order specification on WAV files with WAVEFORMATEXTENSIBLE headers that contain zeroed channel masks

• seeking to last block failure (after finishing file)
• memcpy() not always used correctly (Linux targets)
• unsigned char issue (ARM targets)

• clean handling of ^C
• console title (with -z to defeat)
• wildcards in tag specifications
• 4GB file support on 32-bit OS

pkgname=wavpack
pkgver=4.70.0b
pkgrel=1
pkgdesc="Audio compression format with lossless, lossy, and hybrid compression modes"
arch=('i686' 'x86_64')
url="http://www.wavpack.com/"
license=('custom')
depends=('glibc')
options=('!libtool')
source=("http://www.wavpack.com/${pkgname}-4.70.0-beta.tar.bz2")
md5sums=('5405ff4fd021059059b334962e218fb7')

build() {
  cd ${srcdir}/${pkgname}-4.70.0
    export CFLAGS="${CFLAGS/-O2/-O3}"
    export CXXFLAGS="$CFLAGS"
  ./configure --prefix=/usr --enable-mmx --disable-static
  make
}

package() {
  cd ${srcdir}/${pkgname}-4.70.0
  make DESTDIR=${pkgdir} install
}

• ).
• Edit: from the current maintainer - I'm not taking over.

pkgname=wavpack-beta
pkgver=4.70.0
pkgrel=3
pkgdesc="Audio compression format with lossless, lossy, and hybrid compression modes"
arch=('i686' 'x86_64')
url="http://www.wavpack.com/"
license=('custom')
depends=('glibc')
options=('!libtool')
provides=('wavpack=4.70.0')
conflicts=('wavpack')
source=('http://www.wavpack.com/wavpack-4.70.0-beta.tar.bz2')
md5sums=('5405ff4fd021059059b334962e218fb7')

build() {
	cd ${srcdir}/${pkgname/-beta/}-${pkgver}
#	export CFLAGS="${CFLAGS/-O1/-O3}"
#	export CFLAGS="${CFLAGS/-O2/-O3}"
#	export CXXFLAGS="$CFLAGS"
	./configure --prefix=/usr --enable-mmx --disable-static
	make
}

package() {
	cd ${srcdir}/${pkgname/-beta/}-${pkgver}
	make DESTDIR=${pkgdir} install
	# the current archive does not contain a license file
}

OK. A couple of insignificant nitpickings before the final *nix tarball... (of whom you are probably already aware)

Any news of a final release of version 4.70? 

4.70.0 beta for Windows hangs if the output file is NUL.

wavpack Track01.wav - > NUL

Quote from: sluggy on 2013-06-26 13:40:37

Any news of a final release of version 4.70? 

I'm still working on it, but I've gotten a little busy with other things. Shouldn't be long now... 

• experimental, undocumented option to store float16 and float24 audio data as integers (--store-floats-as-ints)

static uint32_t WavpackGetFormatTagFromWrapper(WavpackContext * wpc ) {
	uint32_t bytes = WavpackGetWrapperBytes( wpc );
	uint8_t * ptr = WavpackGetWrapperData( wpc ) ;

	uint32_t fmtOffset = 8 + 12;
	if (bytes < fmtOffset + 2) return 0;
	if (memcmp(ptr, "RIFF", 4) != 0) return 0;
	if (memcmp(ptr + 8, "WAVEfmt ", 8) != 0) return 0;

	return (uint16_t) ptr[fmtOffset] + ((uint16_t) ptr[fmtOffset+1] << 8);
}

static uint32_t WavpackGetFormatTag(WavpackContext * wpc ) {
	uint32_t v = WavpackGetFormatTagFromWrapper( wpc );
	if (v == 0) {
		if ( WavpackGetMode( wpc ) & MODE_FLOAT ) {
			v = 3;
		} else {
			v = 1;
		}
	}
	return v;
}

Code to determine the real wave format tag of from a WavPack context - presuming context to have been opened with OPEN_WRAPPER:

if (v == 0 || v == 0xFFFE)

Any news on the final stable release?