LCOV - code coverage report
Current view: top level - libavcodec - sinewin_tablegen.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 7 7 100.0 %
Date: 2017-12-16 13:57:32 Functions: 4 4 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Header file for hardcoded sine windows
       3             :  *
       4             :  * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
       5             :  *
       6             :  * This file is part of FFmpeg.
       7             :  *
       8             :  * FFmpeg is free software; you can redistribute it and/or
       9             :  * modify it under the terms of the GNU Lesser General Public
      10             :  * License as published by the Free Software Foundation; either
      11             :  * version 2.1 of the License, or (at your option) any later version.
      12             :  *
      13             :  * FFmpeg is distributed in the hope that it will be useful,
      14             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      16             :  * Lesser General Public License for more details.
      17             :  *
      18             :  * You should have received a copy of the GNU Lesser General Public
      19             :  * License along with FFmpeg; if not, write to the Free Software
      20             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      21             :  */
      22             : 
      23             : #ifndef AVCODEC_SINEWIN_TABLEGEN_H
      24             : #define AVCODEC_SINEWIN_TABLEGEN_H
      25             : 
      26             : #include <assert.h>
      27             : // do not use libavutil/libm.h since this is compiled both
      28             : // for the host and the target and config.h is only valid for the target
      29             : #include <math.h>
      30             : #include "libavcodec/aac_defines.h"
      31             : #include "libavutil/attributes.h"
      32             : #include "libavutil/common.h"
      33             : 
      34             : #if !USE_FIXED
      35             : SINETABLE( 120);
      36             : SINETABLE( 960);
      37             : #endif
      38             : #if !CONFIG_HARDCODED_TABLES
      39             : SINETABLE(  32);
      40             : SINETABLE(  64);
      41             : SINETABLE( 128);
      42             : SINETABLE( 256);
      43             : SINETABLE( 512);
      44             : SINETABLE(1024);
      45             : SINETABLE(2048);
      46             : SINETABLE(4096);
      47             : SINETABLE(8192);
      48             : #else
      49             : #if USE_FIXED
      50             : #include "libavcodec/sinewin_fixed_tables.h"
      51             : #else
      52             : #include "libavcodec/sinewin_tables.h"
      53             : #endif
      54             : #endif
      55             : 
      56             : #if USE_FIXED
      57             : #define SIN_FIX(a) (int)floor((a) * 0x80000000 + 0.5)
      58             : #else
      59             : #define SIN_FIX(a) a
      60             : #endif
      61             : 
      62             : SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[] = {
      63             :     NULL, NULL, NULL, NULL, NULL, // unused
      64             :     AAC_RENAME(ff_sine_32) , AAC_RENAME(ff_sine_64), AAC_RENAME(ff_sine_128),
      65             :     AAC_RENAME(ff_sine_256), AAC_RENAME(ff_sine_512), AAC_RENAME(ff_sine_1024),
      66             :     AAC_RENAME(ff_sine_2048), AAC_RENAME(ff_sine_4096), AAC_RENAME(ff_sine_8192),
      67             : };
      68             : 
      69             : // Generate a sine window.
      70         937 : av_cold void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n) {
      71             :     int i;
      72      620425 :     for(i = 0; i < n; i++)
      73      619488 :         window[i] = SIN_FIX(sinf((i + 0.5) * (M_PI / (2.0 * n))));
      74         937 : }
      75             : 
      76         633 : av_cold void AAC_RENAME(ff_init_ff_sine_windows)(int index) {
      77             :     assert(index >= 0 && index < FF_ARRAY_ELEMS(AAC_RENAME(ff_sine_windows)));
      78             : #if !CONFIG_HARDCODED_TABLES
      79         633 :     AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_windows)[index], 1 << index);
      80             : #endif
      81         633 : }
      82             : 
      83             : #endif /* AVCODEC_SINEWIN_TABLEGEN_H */

Generated by: LCOV version 1.13