SpeexDSP-1.2.1 release

- CI: add gitlab CI integration
- fixed-point: Remove unused MULT16_32_Q1[1-4] macros and inlines
- fixed-point: don't truncate 32-bit arg to MULT16_32_Q15
- fixed-point resample: remove 1-bit shift right before interpolation
- fixed-point: introduce MULT16_32_32 to handle unexpected types in MULT16_32_Q15
- Fix incorrect macro names in arch.h
- Remove unused stack_alloc.h
- autotools: do not use deprecated macros

SpeexDSP 1.2.0 release.

configure: bump to 1.2rc3

configure: bump to 1.2rc2

properly implemented SPEEX_PREPROCESS_GET_ECHO_STATE

SPEEX_PREPROCESS_SET_AGC_LEVEL is now back to its original semantic a…

…s this

would have caused too much problems. The int version is now called
SPEEX_PREPROCESS_SET_AGC_TARGET.


git-svn-id: http://svn.xiph.org/trunk/speex@14702 0101bb08-14d6-0310-b084-bc0e0c8e3800

Thorvald Natvig: The attached patch fixes an inconsistancy in my earl…

…ier patch.

Whereas the rest of the AGC ctls are in dB, GET_AGC_GAIN was linear. This patch
fixes that.  It also changes the API for _GET and _SET_AGC_LEVEL to use an
int32 instead of a float, meaning we don't need to do a API change when we get
a fixed point AGC.


git-svn-id: http://svn.xiph.org/trunk/speex@14611 0101bb08-14d6-0310-b084-bc0e0c8e3800

MinGW support by mikael Magnusson and last updates for 1.2beta3.

git-svn-id: http://svn.xiph.org/trunk/speex@14283 0101bb08-14d6-0310-b084-bc0e0c8e3800

Version 1.2beta2

minor tweak to prototype and removed unused variable

git-svn-id: http://svn.xiph.org/trunk/speex@12975 0101bb08-14d6-0310-b084-bc0e0c8e3800