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>

libavcodec/fft.h

@@ -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)
 

libavcodec/fft_template.c

@@ -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