X-Git-Url: http://git.maemo.org/git/?p=mafwsubrenderer;a=blobdiff_plain;f=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Ffft%2Fkiss_fftr_f32.h;fp=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Ffft%2Fkiss_fftr_f32.h;h=91f2085e5b24d7e20ae4c8e6432d680c38e5de82;hp=0000000000000000000000000000000000000000;hb=57ba96e291a055f69dbfd4ae9f1ae2390e36986e;hpb=be2c98fb83895d10ac44af7b9a9c3e00ca54bf49

diff --git a/gst-plugins-base-subtitles0.10/gst-libs/gst/fft/kiss_fftr_f32.h b/gst-plugins-base-subtitles0.10/gst-libs/gst/fft/kiss_fftr_f32.h
new file mode 100644
index 0000000..91f2085
--- /dev/null
+++ b/gst-plugins-base-subtitles0.10/gst-libs/gst/fft/kiss_fftr_f32.h
@@ -0,0 +1,46 @@
+#ifndef KISS_FTR_F32_H
+#define KISS_FTR_F32_H
+
+#include "kiss_fft_f32.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+    
+/* 
+ 
+ Real optimized version can save about 45% cpu time vs. complex fft of a real seq.
+
+ 
+ 
+ */
+
+typedef struct kiss_fftr_f32_state *kiss_fftr_f32_cfg;
+
+
+kiss_fftr_f32_cfg kiss_fftr_f32_alloc(int nfft,int inverse_fft,void * mem, size_t * lenmem);
+/*
+ nfft must be even
+
+ If you don't care to allocate space, use mem = lenmem = NULL 
+*/
+
+
+void kiss_fftr_f32(kiss_fftr_f32_cfg cfg,const kiss_fft_f32_scalar *timedata,kiss_fft_f32_cpx *freqdata);
+/*
+ input timedata has nfft scalar points
+ output freqdata has nfft/2+1 complex points
+*/
+
+void kiss_fftri_f32(kiss_fftr_f32_cfg cfg,const kiss_fft_f32_cpx *freqdata,kiss_fft_f32_scalar *timedata);
+/*
+ input freqdata has  nfft/2+1 complex points
+ output timedata has nfft scalar points
+*/
+
+#define kiss_fftr_f32_free free
+
+#ifdef __cplusplus
+}
+#endif
+#endif