minor RAM tweak: delayed stack allocation to reduce max scratch memory use
minor RAM tweak: delayed stack allocation to reduce max scratch memory use


git-svn-id: 42b1393cca5d551bec90c34575d0b84245f1dba8@11110 0101bb08-14d6-0310-b084-bc0e0c8e3800

lu-zero/speex,felipebetancur/speex,mwgoldsmith/speex,ksophocleous/speex,maolin-cdzl/speexdsp,jiangjianping/speex,lu-zero/speex,Distrotech/speex,maolin-cdzl/speexdsp,jiangjianping/speex,felipebetancur/speex,maolin-cdzl/speexdsp,Distrotech/speex,mwgoldsmith/speex,jiangjianping/speex,ksophocleous/speex,ksophocleous/speexdsp,felipebetancur/speex,Distrotech/speex,lowlevel-studios/speex-android,lowlevel-studios/speex-android,ksophocleous/speexdsp,felipebetancur/speex,lowlevel-studios/speex-android,maolin-cdzl/speexdsp,jiangjianping/speex,jiangjianping/speex,ksophocleous/speexdsp,ksophocleous/speexdsp,Distrotech/speex,mwgoldsmith/speex,ksophocleous/speex,felipebetancur/speexdsp,mwgoldsmith/speex,lu-zero/speex,felipebetancur/speexdsp,felipebetancur/speexdsp,felipebetancur/speexdsp