cmake: codecs

Author: pschatzmann

CMakeLists.txt

@@ -8,11 +8,22 @@ set(A2DP_REQUIRES bt esp_common freertos hal log nvs_flash driver esp_ringbuf ar
 # codec-helix (AAC decode) + codec-sbc (SBC decode, kept alongside
 # AAC since registering any managed decoder via add_decoder() replaces the
 # built-in SBC decode path entirely - see examples/bt_music_receiver_codec)
-# are only wired up starting idf v6.2, which is where the Bluedroid stack
-# gained multi-SEP / external-codec Kconfig support (BT_A2DP_CODEC_AAC_ENABLED,
-# BT_A2DP_SEP_NUM_MAX).
-if(IDF_VERSION_MAJOR GREATER 6 OR (IDF_VERSION_MAJOR EQUAL 6 AND IDF_VERSION_MINOR GREATER_EQUAL 2))
-    list(APPEND A2DP_REQUIRES codec-helix codec-sbc)
+# only work starting idf v6.1, which is where the Bluedroid stack gained
+# multi-SEP / external-codec Kconfig support (BT_A2DP_CODEC_AAC_ENABLED,
+# BT_A2DP_SEP_NUM_MAX). Each one is added to REQUIRES only if it is actually
+# present as a component (e.g. pulled in via idf_component.yml into
+# managed_components/, or placed in components/) so the build doesn't fail
+# for users who only installed one of the two, or neither.
+if(IDF_VERSION_MAJOR GREATER 6 )
+    idf_build_get_property(a2dp_component_dirs COMPONENT_DIRS)
+    foreach(a2dp_codec codec-helix codec-sbc codec-faad codec-fdk-aac)
+        foreach(a2dp_component_dir ${a2dp_component_dirs})
+            if(EXISTS "${a2dp_component_dir}/${a2dp_codec}")
+                list(APPEND A2DP_REQUIRES ${a2dp_codec})
+                break()
+            endif()
+        endforeach()
+    endforeach()
 endif()
 
 idf_component_register(