avcodec/aacps: Move initializing common stuff to aacdec_common.c

ff_ps_init() initializes some tables for AAC parametric stereo
and some of them are only valid for the fixed- or floating-point
decoder, whereas others (namely VLCs) are valid for both.
The latter are therefore initialized by ff_ps_init_common()
and because the two versions of ff_ps_init() can be run
concurrently, it is guarded by an AVOnce.

Yet now that there is ff_aacdec_common_init_once() there is
a better way to do this: Call ff_ps_init_common()
from ff_aacdec_common_init_once(). That way there is no need
to guard ff_ps_init_common() by an AVOnce any more.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/aacdec_common.c

@@ -27,6 +27,7 @@
 
 #include "aac.h"
 #include "aacdectab.h"
+#include "aacps.h"
 #include "aactab.h"
 #include "vlc.h"
 
@@ -312,6 +313,8 @@ static av_cold void aacdec_common_init(void)
                                             sbr_vlc_offsets[i], 0);
         tab += sbr_huffman_nb_codes[i];
     }
+
+    ff_ps_init_common();
 }
 
 av_cold void ff_aacdec_common_init_once(void)

libavcodec/aacps.c

@@ -739,7 +739,6 @@ int AAC_RENAME(ff_ps_apply)(PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][
 
 av_cold void AAC_RENAME(ff_ps_init)(void) {
     ps_tableinit();
-    ff_ps_init_common();
 }
 
 av_cold void AAC_RENAME(ff_ps_ctx_init)(PSContext *ps)

libavcodec/aacps_common.c

@@ -21,7 +21,6 @@
 
 #include <stdint.h>
 #include "libavutil/common.h"
-#include "libavutil/thread.h"
 #include "aacps.h"
 #include "get_bits.h"
 #include "aacpsdata.c"
@@ -298,7 +297,7 @@ err:
 #define PS_VLC_ROW(name) \
     { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }
 
-static av_cold void ps_init_common(void)
+av_cold void ff_ps_init_common(void)
 {
     // Syntax initialization
     static const struct {
@@ -328,9 +327,3 @@ static av_cold void ps_init_common(void)
     PS_INIT_VLC_STATIC(8, 5,   32);
     PS_INIT_VLC_STATIC(9, 5,   32);
 }
-
-av_cold void ff_ps_init_common(void)
-{
-    static AVOnce init_static_once = AV_ONCE_INIT;
-    ff_thread_once(&init_static_once, ps_init_common);
-}