diff options
Diffstat (limited to 'libavcodec/fft.h')
| -rw-r--r-- | libavcodec/fft.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/libavcodec/fft.h b/libavcodec/fft.h index b15001549d..1c48145b07 100644 --- a/libavcodec/fft.h +++ b/libavcodec/fft.h @@ -2,20 +2,20 @@ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -26,6 +26,10 @@ #define FFT_FLOAT 1 #endif +#ifndef FFT_FIXED_32 +#define FFT_FIXED_32 0 +#endif + #include <stdint.h> #include "config.h" #include "libavutil/mem.h" @@ -40,15 +44,26 @@ typedef float FFTDouble; #else +#if FFT_FIXED_32 + +#define Q31(x) (int)((x)*2147483648.0 + 0.5) +#define FFT_NAME(x) x ## _fixed_32 + +typedef int32_t FFTSample; + +#else /* FFT_FIXED_32 */ + #define FFT_NAME(x) x ## _fixed typedef int16_t FFTSample; -typedef int FFTDouble; + +#endif /* FFT_FIXED_32 */ typedef struct FFTComplex { - int16_t re, im; + FFTSample re, im; } FFTComplex; +typedef int FFTDouble; typedef struct FFTContext FFTContext; #endif /* FFT_FLOAT */ @@ -135,6 +150,7 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse); void ff_fft_init_x86(FFTContext *s); void ff_fft_init_arm(FFTContext *s); +void ff_fft_init_mips(FFTContext *s); void ff_fft_init_ppc(FFTContext *s); void ff_fft_fixed_init_arm(FFTContext *s); |