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avcodec/fft_template: Avoid useless function 

ff_init_ff_cos_tabs is only used for the floating point FFT and only
if hardcoded tables are disabled.

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2021-01-29 00:06:20 +01:00
parent 124e2a79e2
commit b91b04473a
2 changed files with 12 additions and 14 deletions
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16
libavcodec/fft.h
View File

@ -109,8 +109,16 @@ struct FFTContext {
#if CONFIG_HARDCODED_TABLES
#define COSTABLE_CONST const
#define ff_init_ff_cos_tabs(index)
#else
#define COSTABLE_CONST
#define ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)
/**
* Initialize the cosine table in ff_cos_tabs[index]
* @param index index in ff_cos_tabs array of the table to initialize
*/
void ff_init_ff_cos_tabs(int index);
#endif
#define COSTABLE(size) \
@ -132,14 +140,6 @@ extern COSTABLE(65536);
extern COSTABLE(131072);
extern COSTABLE_CONST FFTSample* const FFT_NAME(ff_cos_tabs)[18];
#define ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)
/**
* Initialize the cosine table in ff_cos_tabs[index]
* @param index index in ff_cos_tabs array of the table to initialize
*/
void ff_init_ff_cos_tabs(int index);
#define ff_fft_init FFT_NAME(ff_fft_init)
#define ff_fft_end FFT_NAME(ff_fft_end)

10
libavcodec/fft_template.c
View File

@ -113,6 +113,10 @@ static CosTabsInitOnce cos_tabs_init_once[] = {
{ init_ff_cos_tabs_131072, AV_ONCE_INIT },
};
av_cold void ff_init_ff_cos_tabs(int index)
{
ff_thread_once(&cos_tabs_init_once[index].control, cos_tabs_init_once[index].func);
}
#endif
COSTABLE_CONST FFTSample * const FFT_NAME(ff_cos_tabs)[] = {
NULL, NULL, NULL, NULL,
@ -148,12 +152,6 @@ static int split_radix_permutation(int i, int n, int inverse)
else return split_radix_permutation(i, m, inverse)*4 - 1;
}
av_cold void ff_init_ff_cos_tabs(int index)
{
#if (!CONFIG_HARDCODED_TABLES) && (!FFT_FIXED_32)
ff_thread_once(&cos_tabs_init_once[index].control, cos_tabs_init_once[index].func);
#endif
}
static const int avx_tab[] = {
0, 4, 1, 5, 8, 12, 9, 13, 2, 6, 3, 7, 10, 14, 11, 15