#ifndef AVCODEC_FFT_H
#define AVCODEC_FFT_H
+#ifndef CONFIG_FFT_FLOAT
+#define CONFIG_FFT_FLOAT 1
+#endif
+
#include <stdint.h>
#include "config.h"
#include "libavutil/mem.h"
+
+#if CONFIG_FFT_FLOAT
+
#include "avfft.h"
+#define FFT_NAME(x) x
+
+typedef float FFTDouble;
+
+#else
+
+#define FFT_NAME(x) x ## _fixed
+
+typedef int16_t FFTSample;
+typedef int FFTDouble;
+
+typedef struct FFTComplex {
+ int16_t re, im;
+} FFTComplex;
+
+typedef struct FFTContext FFTContext;
+
+#endif /* CONFIG_FFT_FLOAT */
+
+typedef struct FFTDComplex {
+ FFTDouble re, im;
+} FFTDComplex;
+
/* FFT computation */
struct FFTContext {
void (*imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
void (*imdct_half)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
void (*mdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
+ void (*mdct_calcw)(struct FFTContext *s, FFTDouble *output, const FFTSample *input);
int fft_permutation;
#define FF_FFT_PERM_DEFAULT 0
#define FF_FFT_PERM_SWAP_LSBS 1
+#define FF_FFT_PERM_AVX 2
int mdct_permutation;
#define FF_MDCT_PERM_NONE 0
#define FF_MDCT_PERM_INTERLEAVE 1
#endif
#define COSTABLE(size) \
- COSTABLE_CONST DECLARE_ALIGNED(16, FFTSample, ff_cos_##size)[size/2]
+ COSTABLE_CONST DECLARE_ALIGNED(32, FFTSample, FFT_NAME(ff_cos_##size))[size/2]
extern COSTABLE(16);
extern COSTABLE(32);
extern COSTABLE(16384);
extern COSTABLE(32768);
extern COSTABLE(65536);
-extern COSTABLE_CONST FFTSample* const ff_cos_tabs[17];
+extern COSTABLE_CONST FFTSample* const FFT_NAME(ff_cos_tabs)[17];
+
+#define ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)
/**
* Initialize the cosine table in ff_cos_tabs[index]
- * \param index index in ff_cos_tabs array of the table to initialize
+ * @param index index in ff_cos_tabs array of the table to initialize
*/
void ff_init_ff_cos_tabs(int index);
+#define ff_fft_init FFT_NAME(ff_fft_init)
+#define ff_fft_end FFT_NAME(ff_fft_end)
+
/**
* Set up a complex FFT.
* @param nbits log2 of the length of the input array
*/
int ff_fft_init(FFTContext *s, int nbits, int inverse);
+#if CONFIG_FFT_FLOAT
void ff_fft_init_altivec(FFTContext *s);
-void ff_fft_init_mmx(FFTContext *s);
+void ff_fft_init_x86(FFTContext *s);
void ff_fft_init_arm(FFTContext *s);
-void ff_dct_init_mmx(DCTContext *s);
+#else
+void ff_fft_fixed_init_arm(FFTContext *s);
+#endif
void ff_fft_end(FFTContext *s);
+#define ff_mdct_init FFT_NAME(ff_mdct_init)
+#define ff_mdct_end FFT_NAME(ff_mdct_end)
+
int ff_mdct_init(FFTContext *s, int nbits, int inverse, double scale);
-void ff_imdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_half_c(FFTContext *s, FFTSample *output, const FFTSample *input);
-void ff_mdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
void ff_mdct_end(FFTContext *s);
#endif /* AVCODEC_FFT_H */