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| author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2010-01-09 13:28:04 +0000 |
|---|---|---|
| committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2010-01-09 13:28:04 +0000 |
| commit | 14b8607065ff7204cff29b108e42fd930a52a5ed (patch) | |
| tree | eb04acb8a0efea46d50055f7af472d9597ab37c8 /libavcodec/dsputil.h | |
| parent | b090930d432957a06f78701212b3024f93958f17 (diff) | |
| download | ffmpeg-14b8607065ff7204cff29b108e42fd930a52a5ed.tar.gz | |
Add support for hard-coded MDCT-related ff_sine_windows tables.
Originally committed as revision 21108 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dsputil.h')
| -rw-r--r-- | libavcodec/dsputil.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h index e483276070..7b218acaf1 100644 --- a/libavcodec/dsputil.h +++ b/libavcodec/dsputil.h @@ -741,15 +741,19 @@ typedef struct FFTContext { #if CONFIG_HARDCODED_TABLES #define COSTABLE_CONST const #define SINTABLE_CONST const +#define SINETABLE_CONST const #else #define COSTABLE_CONST #define SINTABLE_CONST +#define SINETABLE_CONST #endif #define COSTABLE(size) \ COSTABLE_CONST DECLARE_ALIGNED_16(FFTSample, ff_cos_##size[size/2]) #define SINTABLE(size) \ SINTABLE_CONST DECLARE_ALIGNED_16(FFTSample, ff_sin_##size[size/2]) +#define SINETABLE(size) \ + SINETABLE_CONST DECLARE_ALIGNED_16(float, ff_sine_##size[size]) extern COSTABLE(16); extern COSTABLE(32); extern COSTABLE(64); @@ -846,15 +850,19 @@ void ff_kbd_window_init(float *window, float alpha, int n); * @param n size of half window */ void ff_sine_window_init(float *window, int n); -extern float ff_sine_32 [ 32]; -extern float ff_sine_64 [ 64]; -extern float ff_sine_128 [ 128]; -extern float ff_sine_256 [ 256]; -extern float ff_sine_512 [ 512]; -extern float ff_sine_1024[1024]; -extern float ff_sine_2048[2048]; -extern float ff_sine_4096[4096]; -extern float * const ff_sine_windows[13]; +/** + * initialize the specified entry of ff_sine_windows + */ +void ff_init_ff_sine_windows(int index); +extern SINETABLE( 32); +extern SINETABLE( 64); +extern SINETABLE( 128); +extern SINETABLE( 256); +extern SINETABLE( 512); +extern SINETABLE(1024); +extern SINETABLE(2048); +extern SINETABLE(4096); +extern SINETABLE_CONST float * const ff_sine_windows[13]; int ff_mdct_init(FFTContext *s, int nbits, int inverse, double scale); void ff_imdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input); |