Updating Opus to release 1.1

celt/pitch.h

 /* Copyright (c) 2007-2008 CSIRO
    Copyright (c) 2007-2009 Xiph.Org Foundation
    Written by Jean-Marc Valin */
 /**
    @file pitch.h
    @brief Pitch analysis
  */
 
 /*
    Redistribution and use in source and binary forms, with or without
@@ skipping 17 matching lines @@
    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #ifndef PITCH_H
 #define PITCH_H
 
 #include "modes.h"
+#include "cpu_support.h"
 
 #if defined(__SSE__) && !defined(FIXED_POINT)
 #include "x86/pitch_sse.h"
 #endif
 
+#if defined(OPUS_ARM_ASM) && defined(FIXED_POINT)
+# include "arm/pitch_arm.h"
+#endif
+
 void pitch_downsample(celt_sig * OPUS_RESTRICT x[], opus_val16 * OPUS_RESTRICT x_lp,
-      int len, int C);
+      int len, int C, int arch);
 
 void pitch_search(const opus_val16 * OPUS_RESTRICT x_lp, opus_val16 * OPUS_RESTRICT y,
-                  int len, int max_pitch, int *pitch);
+                  int len, int max_pitch, int *pitch, int arch);
 
 opus_val16 remove_doubling(opus_val16 *x, int maxperiod, int minperiod,
       int N, int *T0, int prev_period, opus_val16 prev_gain);
 
 /* OPT: This is the kernel you really want to optimize. It gets used a lot
    by the prefilter and by the PLC. */
 #ifndef OVERRIDE_XCORR_KERNEL
-static inline void xcorr_kernel(const opus_val16 * x, const opus_val16 * y, opus_val32 sum[4], int len)
+static OPUS_INLINE void xcorr_kernel(const opus_val16 * x, const opus_val16 * y, opus_val32 sum[4], int len)
 {
    int j;
    opus_val16 y_0, y_1, y_2, y_3;
+   celt_assert(len>=3);
    y_3=0; /* gcc doesn't realize that y_3 can't be used uninitialized */
    y_0=*y++;
    y_1=*y++;
    y_2=*y++;
    for (j=0;j<len-3;j+=4)
    {
       opus_val16 tmp;
       tmp = *x++;
       y_3=*y++;
       sum[0] = MAC16_16(sum[0],tmp,y_0);
@@ skipping 43 matching lines @@
       y_1=*y++;
       sum[0] = MAC16_16(sum[0],tmp,y_2);
       sum[1] = MAC16_16(sum[1],tmp,y_3);
       sum[2] = MAC16_16(sum[2],tmp,y_0);
       sum[3] = MAC16_16(sum[3],tmp,y_1);
    }
 }
 #endif /* OVERRIDE_XCORR_KERNEL */
 
 #ifndef OVERRIDE_DUAL_INNER_PROD
-static inline void dual_inner_prod(const opus_val16 *x, const opus_val16 *y01, const opus_val16 *y02,
+static OPUS_INLINE void dual_inner_prod(const opus_val16 *x, const opus_val16 *y01, const opus_val16 *y02,
       int N, opus_val32 *xy1, opus_val32 *xy2)
 {
    int i;
    opus_val32 xy01=0;
    opus_val32 xy02=0;
    for (i=0;i<N;i++)
    {
       xy01 = MAC16_16(xy01, x[i], y01[i]);
       xy02 = MAC16_16(xy02, x[i], y02[i]);
    }
    *xy1 = xy01;
    *xy2 = xy02;
 }
 #endif
 
 #ifdef FIXED_POINT
 opus_val32
 #else
 void
 #endif
-celt_pitch_xcorr(const opus_val16 *_x, const opus_val16 *_y, opus_val32 *xcorr, int len, int max_pitch);
+celt_pitch_xcorr_c(const opus_val16 *_x, const opus_val16 *_y,
+      opus_val32 *xcorr, int len, int max_pitch);
+
+#if !defined(OVERRIDE_PITCH_XCORR)
+/*Is run-time CPU detection enabled on this platform?*/
+# if defined(OPUS_HAVE_RTCD)
+extern
+#  if defined(FIXED_POINT)
+opus_val32
+#  else
+void
+#  endif
+(*const CELT_PITCH_XCORR_IMPL[OPUS_ARCHMASK+1])(const opus_val16 *,
+      const opus_val16 *, opus_val32 *, int, int);
+
+#  define celt_pitch_xcorr(_x, _y, xcorr, len, max_pitch, arch) \
+  ((*CELT_PITCH_XCORR_IMPL[(arch)&OPUS_ARCHMASK])(_x, _y, \
+        xcorr, len, max_pitch))
+# else
+#  define celt_pitch_xcorr(_x, _y, xcorr, len, max_pitch, arch) \
+  ((void)(arch),celt_pitch_xcorr_c(_x, _y, xcorr, len, max_pitch))
+# endif
+#endif
 
 #endif