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avcodec/aacdec, sinewin: Move 120 and 960 point sine tables to aacdec

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The floating point AAC decoder is the only user of these tables, so it
makes sense to move them there. Furthermore, initializing the ordinary
power-of-two sinetables is currently not thread-safe and if the 120- and
960-point sinetables were not moved, one would have to choose whether
to guard initializing these two tables with their own AVOnces or not.
Doing so would add unnecessary AVOnces as the AAC decoder already guards
initializing its static data by an AVOnce; not doing so would be fragile
if a second user of these tables were to be added.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-11-22 14:27:45 +01:00
parent 7688f94e90
commit cdea393093
5 changed files with 8 additions and 16 deletions
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3
libavcodec/aacdec.c
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@ -69,6 +69,9 @@
# include "mips/aacdec_mips.h"
#endif
DECLARE_ALIGNED(32, static INTFLOAT, AAC_RENAME(sine_120))[120];
DECLARE_ALIGNED(32, static INTFLOAT, AAC_RENAME(sine_960))[960];
static av_always_inline void reset_predict_state(PredictorState *ps)
{
ps->r0 = 0.0f;

10
libavcodec/aacdec_template.c
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@ -1235,8 +1235,8 @@ static av_cold void aac_static_table_init(void)
#if !USE_FIXED
AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_long_960), 4.0, 960);
AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_short_120), 6.0, 120);
AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_960), 960);
AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_120), 120);
AAC_RENAME(ff_sine_window_init)(AAC_RENAME(sine_960), 960);
AAC_RENAME(ff_sine_window_init)(AAC_RENAME(sine_120), 120);
#endif
AAC_RENAME(ff_init_ff_sine_windows)(10);
AAC_RENAME(ff_init_ff_sine_windows)( 9);
@ -2810,9 +2810,9 @@ static void imdct_and_windowing_960(AACContext *ac, SingleChannelElement *sce)
INTFLOAT *in = sce->coeffs;
INTFLOAT *out = sce->ret;
INTFLOAT *saved = sce->saved;
const INTFLOAT *swindow = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(ff_sine_120);
const INTFLOAT *lwindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_long_960) : AAC_RENAME(ff_sine_960);
const INTFLOAT *swindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(ff_sine_120);
const INTFLOAT *swindow = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(sine_120);
const INTFLOAT *lwindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_long_960) : AAC_RENAME(sine_960);
const INTFLOAT *swindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(sine_120);
INTFLOAT *buf = ac->buf_mdct;
INTFLOAT *temp = ac->temp;
int i;

5
libavcodec/sinewin.h
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@ -38,9 +38,6 @@
#define SINETABLE(size) \
SINETABLE_CONST DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size]
#define SINETABLE120960(size) \
DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size]
/**
* Generate a sine window.
* @param window pointer to half window
@ -55,11 +52,9 @@ void AAC_RENAME(ff_init_ff_sine_windows)(int index);
extern SINETABLE( 32);
extern SINETABLE( 64);
extern SINETABLE120960(120);
extern SINETABLE( 128);
extern SINETABLE( 256);
extern SINETABLE( 512);
extern SINETABLE120960(960);
extern SINETABLE(1024);
extern SINETABLE(2048);
extern SINETABLE(4096);

4
libavcodec/sinewin_tablegen.h
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@ -31,10 +31,6 @@
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#if !USE_FIXED
SINETABLE120960(120);
SINETABLE120960(960);
#endif
#if !CONFIG_HARDCODED_TABLES
SINETABLE( 32);
SINETABLE( 64);

2
libavcodec/sinewin_tablegen_template.c
View File

@ -33,8 +33,6 @@
#define SINETABLE_CONST
#define SINETABLE(size) \
INTFLOAT AAC_RENAME(ff_sine_##size)[size]
#define SINETABLE120960(size) \
INTFLOAT AAC_RENAME(ff_sine_##size)[size]
#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
#include "sinewin_tablegen.h"
#include "tableprint.h"