diff options
Diffstat (limited to 'libavcodec/sinewin_tablegen.h')
-rw-r--r-- | libavcodec/sinewin_tablegen.h | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/libavcodec/sinewin_tablegen.h b/libavcodec/sinewin_tablegen.h index 1ee225bf67..4432135f19 100644 --- a/libavcodec/sinewin_tablegen.h +++ b/libavcodec/sinewin_tablegen.h @@ -3,20 +3,20 @@ * * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de> * - * 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 */ @@ -27,6 +27,7 @@ // do not use libavutil/libm.h since this is compiled both // for the host and the target and config.h is only valid for the target #include <math.h> +#include "libavcodec/aac_defines.h" #include "libavutil/attributes.h" #include "libavutil/common.h" @@ -41,26 +42,37 @@ SINETABLE(2048); SINETABLE(4096); SINETABLE(8192); #else +#if USE_FIXED +#include "libavcodec/sinewin_fixed_tables.h" +#else #include "libavcodec/sinewin_tables.h" #endif +#endif + +#if USE_FIXED +#define SIN_FIX(a) (int)floor((a) * 0x80000000 + 0.5) +#else +#define SIN_FIX(a) a +#endif -SINETABLE_CONST float * const ff_sine_windows[] = { +SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[] = { NULL, NULL, NULL, NULL, NULL, // unused - ff_sine_32 , ff_sine_64 , - ff_sine_128, ff_sine_256, ff_sine_512, ff_sine_1024, ff_sine_2048, ff_sine_4096, ff_sine_8192 + AAC_RENAME(ff_sine_32) , AAC_RENAME(ff_sine_64), AAC_RENAME(ff_sine_128), + AAC_RENAME(ff_sine_256), AAC_RENAME(ff_sine_512), AAC_RENAME(ff_sine_1024), + AAC_RENAME(ff_sine_2048), AAC_RENAME(ff_sine_4096), AAC_RENAME(ff_sine_8192) }; // Generate a sine window. -av_cold void ff_sine_window_init(float *window, int n) { +av_cold void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n) { int i; for(i = 0; i < n; i++) - window[i] = sinf((i + 0.5) * (M_PI / (2.0 * n))); + window[i] = SIN_FIX(sinf((i + 0.5) * (M_PI / (2.0 * n)))); } -av_cold void ff_init_ff_sine_windows(int index) { - assert(index >= 0 && index < FF_ARRAY_ELEMS(ff_sine_windows)); +av_cold void AAC_RENAME(ff_init_ff_sine_windows)(int index) { + assert(index >= 0 && index < FF_ARRAY_ELEMS(AAC_RENAME(ff_sine_windows))); #if !CONFIG_HARDCODED_TABLES - ff_sine_window_init(ff_sine_windows[index], 1 << index); + AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_windows)[index], 1 << index); #endif } |