bluetooth: sbc: move sbc to bluetooth

move sbc to bluetooth because only bluetooth uses it,
change CONFIG_LIBSBC_ENCODER and CONFIG_LIBSBC_DECODER as CONFIG_LIBSBC.

Signed-off-by: Mark Wang <yichang.wang@nxp.com>

modules/libsbc/CMakeLists.txt

@@ -1,4 +1,4 @@
-if(CONFIG_LIBSBC_ENCODER OR CONFIG_LIBSBC_DECODER)
+if(CONFIG_LIBSBC)
 
 zephyr_library_named(libsbc)
 # -Wno-stringop-overflow was added as otherwise gcc 13.3 produces multiple warnings in this library
@@ -8,7 +8,6 @@ zephyr_library_compile_options(-O3 -std=c11 -ffast-math -Wno-stringop-overflow)
 
 zephyr_library_compile_definitions(SBC_FOR_EMBEDDED_LINUX)
 zephyr_library_compile_definitions(SBC_NO_PCM_CPY_OPTION)
-zephyr_library_sources(sbc.c)
 
 zephyr_include_directories(
     ${ZEPHYR_LIBSBC_MODULE_DIR}/encoder/include
@@ -19,7 +18,6 @@ zephyr_include_directories(
   ${ZEPHYR_LIBSBC_MODULE_DIR}/decoder/srce
   )
 
-if(CONFIG_LIBSBC_ENCODER)
 zephyr_library_sources(
   ${ZEPHYR_LIBSBC_MODULE_DIR}/encoder/srce/sbc_analysis.c
   ${ZEPHYR_LIBSBC_MODULE_DIR}/encoder/srce/sbc_dct.c
@@ -30,9 +28,7 @@ zephyr_library_sources(
   ${ZEPHYR_LIBSBC_MODULE_DIR}/encoder/srce/sbc_encoder.c
   ${ZEPHYR_LIBSBC_MODULE_DIR}/encoder/srce/sbc_packing.c
   )
-endif()
 
-if(CONFIG_LIBSBC_DECODER)
 zephyr_library_sources(
   ${ZEPHYR_LIBSBC_MODULE_DIR}/decoder/srce/alloc.c
   ${ZEPHYR_LIBSBC_MODULE_DIR}/decoder/srce/bitalloc.c
@@ -51,4 +47,3 @@ zephyr_library_sources(
   ${ZEPHYR_LIBSBC_MODULE_DIR}/decoder/srce/synthesis-sbc.c
   )
 endif()
-endif()

modules/libsbc/Kconfig

@@ -4,12 +4,7 @@
 config ZEPHYR_LIBSBC_MODULE
 	bool
 
-config LIBSBC_ENCODER
-	bool "libsbc encoder Support"
+config LIBSBC
+	bool "libsbc Support"
 	help
-	  This option enables the Android SBC encoder library for Bluetooth A2DP
-
-config LIBSBC_DECODER
-	bool "libsbc decoder Support"
-	help
-	  This option enables the Android SBC decoder library for Bluetooth A2DP
+	  This option enables Low Complexity Subband Codec (SBC)

subsys/bluetooth/host/classic/Kconfig

@@ -445,6 +445,7 @@ config BT_AVDTP
 config BT_A2DP
 	bool "Bluetooth A2DP Profile [EXPERIMENTAL]"
 	select BT_AVDTP
+	imply LIBSBC
 	select EXPERIMENTAL
 	help
 	  This option enables the A2DP profile

subsys/bluetooth/lib/CMakeLists.txt

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: Apache-2.0
 
 zephyr_sources_ifdef(CONFIG_BT_EAD ead.c)
+zephyr_sources_ifdef(CONFIG_LIBSBC sbc.c)

subsys/bluetooth/lib/sbc.c

@@ -5,9 +5,9 @@
  */
 
 #include <errno.h>
-#include <zephyr/libsbc/sbc.h>
+#include <zephyr/bluetooth/sbc.h>
 
-#if defined(CONFIG_LIBSBC_ENCODER)
+#if defined(CONFIG_LIBSBC)
 
 int sbc_setup_encoder(struct sbc_encoder *encoder, struct sbc_encoder_init_param *param)
 {
@@ -136,9 +136,7 @@ int sbc_frame_encoded_bytes(struct sbc_encoder *encoder)
 
 	return size;
 }
-#endif
 
-#if defined(CONFIG_LIBSBC_DECODER)
 /**
  * Setup decoder
  */