avcodec/sbrdsp_fixed: Fix undefined overflows in autocorrelate()

[ffmpeg] / libavcodec / mdct15.h

diff --git a/libavcodec/mdct15.h b/libavcodec/mdct15.h
index ef94edff6ccb1fc3ad09c7bf62729f422226cab9..42e60f3e102c2b63c906016de08668dafd25f2ea 100644 (file)
--- a/libavcodec/mdct15.h
+++ b/libavcodec/mdct15.h
@@ -34,34 +34,29 @@ typedef struct MDCT15Context {
     int *pfa_postreindex;
 
     FFTContext ptwo_fft;
-
     FFTComplex *tmp;
-
     FFTComplex *twiddle_exptab;
 
-    /* 0 - 18: fft15 twiddles, 19 - 20: fft5 twiddles */
-    FFTComplex exptab[21];
+    DECLARE_ALIGNED(32, FFTComplex, exptab)[64];
+
+    /* 15-point FFT */
+    void (*fft15)(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+
+    /* PFA postrotate and exptab */
+    void (*postreindex)(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
 
-    /**
-     * Calculate a full 2N -> N MDCT
-     */
+    /* Calculate a full 2N -> N MDCT */
     void (*mdct)(struct MDCT15Context *s, float *dst, const float *src, ptrdiff_t stride);
 
-    /**
-     * Calculate the middle half of the iMDCT
-     */
+    /* Calculate the middle half of the iMDCT */
     void (*imdct_half)(struct MDCT15Context *s, float *dst, const float *src,
-                       ptrdiff_t src_stride, float scale);
+                       ptrdiff_t stride);
 } MDCT15Context;
 
-/**
- * Init an (i)MDCT of the length 2 * 15 * (2^N)
- */
+/* Init an (i)MDCT of the length 2 * 15 * (2^N) */
 int ff_mdct15_init(MDCT15Context **ps, int inverse, int N, double scale);
-
-/**
- * Frees a context
- */
 void ff_mdct15_uninit(MDCT15Context **ps);
 
+void ff_mdct15_init_x86(MDCT15Context *s);
+
 #endif /* AVCODEC_MDCT15_H */