rubberband: use float for samples instead of double to increase performance

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>

recipes-misc/recipes-multimedia/rubberband/files/0001-replace-double-process_t.patch

@@ -0,0 +1,33 @@
+From 305ecda9ccc039e95129a17a46ebdc3a90e2c912 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@googlemail.com>
+Date: Mon, 26 Dec 2016 21:09:09 +0100
+Subject: [PATCH] replace double->process_t
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+fixes builds for -DPROCESS_SAMPLE_TYPE=float
+
+Upstram-Status: Pending
+
+Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
+---
+ src/StretcherProcess.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/StretcherProcess.cpp b/src/StretcherProcess.cpp
+index 36b224a..801029a 100644
+--- a/src/StretcherProcess.cpp
++++ b/src/StretcherProcess.cpp
+@@ -930,7 +930,7 @@ RubberBandStretcher::Impl::formantShiftChunk(size_t channel)
+ 
+     v_scale(dblbuf, factor, cutoff);
+ 
+-    double *spare = (double *)alloca((hs + 1) * sizeof(double));
++    process_t *spare = (process_t *)alloca((hs + 1) * sizeof(process_t));
+     cd.fft->forward(dblbuf, envelope, spare);
+ 
+     v_exp(envelope, hs + 1);
+-- 
+2.5.5
+

recipes-misc/recipes-multimedia/rubberband/rubberband_1.8.1.bb

@@ -13,16 +13,17 @@ DEPENDS += " \
 "
 
 # fftwf is neon accelerated -> force SINGLE precision
-SINGLEPATCH = "${@bb.utils.contains('TUNE_FEATURES', 'neon', 'file://0001-Optional-replace-FFTW_DOUBLE_ONLY-by-FFTW_SINGLE_ONL.patch', '', d)}"
+SINGLEPATCH = "${@bb.utils.contains('TUNE_FEATURES', 'neon', 'file://0002-Optional-replace-FFTW_DOUBLE_ONLY-by-FFTW_SINGLE_ONL.patch', '', d)}"
 
 SRC_URI = " \
     http://code.breakfastquay.com/attachments/download/34/${BPN}-${PV}.tar.bz2 \
+    file://0001-replace-double-process_t.patch \
     ${SINGLEPATCH} \
 "
 SRC_URI[md5sum] = "6c2b4e18a714bcc297d0db81a10f9348"
 SRC_URI[sha256sum] = "ff0c63b0b5ce41f937a8a3bc560f27918c5fe0b90c6bc1cb70829b86ada82b75"
 
-CPPFLAGS += "-ftree-vectorize"
+CPPFLAGS += "-ftree-vectorize -DPROCESS_SAMPLE_TYPE=float"
 
 FILES_${PN} += " \
     ${datadir}/ladspa \