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Peter Meerwald e66e846418 sconv: Change/fix conversion to/from float32 
use (1<<15) instead of 0x7fff as a factor when converting from s16 to float32
use (1<<31) instead of 0x7fffffff as a factor when converting from s32 to float32

the change is motivated by the following desireable properties:
* s16_from_f32(f32_from_s16(x)) == x for all possible s16 values
* x / (1.0f << 15) == x * (1.0f / (1 << 15)) for all x in s16

above changes enable easier optimization while guaranteeing bit-exact results

further, other audio sample conversion code (libavresample) does it the same way

v3 (comments Tanu):
* fix saturation in pa_sconv_s16le_from_f32ne_neon(), use vqrshrn
v2 (comments Tanu):
* fix comments in ARM NEON code
* use llrintf() in pa_sconv_s32le_from_float32ne()

Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Tanu Kaskinen <tanuk@iki.fi>
2013-02-04 12:07:14 +02:00
doc doc: Add an example stream-restore fallback table file. 2011-10-01 13:25:16 +01:00
doxygen doc: Generate API documentation for ext-device-manager and ext-device-restore. 2012-12-19 12:31:50 +02:00
m4 build-sys: Check for necessary programs in bootstrap.sh 2011-07-28 10:51:09 +01:00
man pactl: Add a command for setting the default sink/source. 2013-02-01 07:16:20 +02:00
po i18n: Update Polish translation 2013-01-18 09:50:00 +02:00
shell-completion bash-completion: Don't complete devices in the list commands 2013-02-01 07:11:15 +02:00
src sconv: Change/fix conversion to/from float32 2013-02-04 12:07:14 +02:00
vala vala: Add has_type_id=false to all enums, structs and classes 2011-08-31 11:35:35 +05:30
.gitignore .gitignore: Add pulse-daemon.log. 2013-01-29 17:32:10 +02:00
.mailmap add a .mailmap file for git shortlog 2009-02-04 22:41:45 +01:00
autogen.sh remove remaining $ 2008-06-18 22:38:32 +02:00
bootstrap.sh build-sys: Check for necessary programs in bootstrap.sh 2011-07-28 10:51:09 +01:00
configure.ac build-sys: Fix an outdated D-Bus version in an error message. 2013-01-24 11:05:37 +02:00
git-version-gen git-version-gen: Honor GIT_DESCRIBE_FOR_BUILD environment variable 2012-09-27 15:22:10 +03:00
GPL * rename "LICENSE" to "LGPL" 2006-04-20 12:33:00 +00:00
LGPL * rename "LICENSE" to "LGPL" 2006-04-20 12:33:00 +00:00
libpulse-mainloop-glib.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
libpulse-simple.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
libpulse.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
LICENSE Update LICENSE 2011-11-27 14:54:01 +00:00
Makefile.am build-sys: Use dist_vapi_DATA instead of listing the files in EXTRA_DIST. 2013-01-31 07:09:47 +02:00
orc.mak build: Simplify Orc-related make rules 2011-02-01 11:51:46 +05:30
PROTOCOL introspect: Add functions to handle the latency offset. 2012-06-30 14:41:08 +03:00
pulseaudio-text.svg merge 'lennart' branch back into trunk. 2007-10-28 19:13:50 +00:00
pulseaudio.svg Add PulseAudio logo to tree. 2006-08-28 06:25:41 +00:00
PulseAudioConfig.cmake.in build-sys: Provide a simple CMake Config setup (similar to pkgconfig) 2011-10-19 23:49:23 +01:00
PulseAudioConfigVersion.cmake.in build-sys: Provide a simple CMake Config setup (similar to pkgconfig) 2011-10-19 23:49:23 +01:00
README doc: Add entry for correct spelling 2012-04-27 13:13:23 +05:30
todo Update todo 2011-06-24 00:35:26 +01:00

README 

PULSEAUDIO SOUND SERVER

WEB SITE:
	http://pulseaudio.org/

GIT:
	git://anongit.freedesktop.org/pulseaudio/pulseaudio

GITWEB/CGIT:
	http://cgit.freedesktop.org/pulseaudio/pulseaudio/

MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss

GIT COMMITS MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-commits

TRAC/BUGZILLA TICKET CHANGES MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-bugs

IRC:
	#pulseaudio on irc.freenode.org

CIA:
	http://cia.navi.cx/stats/project/polypaudio

FRESHMEAT:
	http://freshmeat.net/projects/pulseaudio/

OHLOH:
	http://www.ohloh.net/projects/4038

AUTHORS:
	Several

HACKING:
	In order to run pulseaudio from the build dir __OPTIMIZE__ should be
	disabled (look at src/pulsecore/core-util.h::pa_run_from_build_tree()),
	this can be done by passing "CFLAGS=-O0" to the configure script:
	  ./autogen.sh
	  CFLAGS="-ggdb3 -O0" LDFLAGS="-ggdb3" ./configure
	  make
	  ./src/pulseaudio -n -F src/default.pa -p $(pwd)/src/.libs/

SPELLING:
        PulseAudio