Effects Factory changes for effects offload

audio_effects.conf - commented changes to illustrate the
addition of Proxy and sub effects to the conf file

Added an effectFactoryApi - EffectGetSubEffects for querying the
sub effect descriptors from the factory. This api is used by the Proxy
to get the sub effects

Added functions and data structures in factory code for
loading the sub effects

gSubEffectList - has the Proxies and their corresponding sub effects

- addSubEffect() - reads a sub effect node and adds to the gSubEffectList
- findSubEffect() - searches through the gSubEffectList to find a SubEffect

Bug: 8174034.

Change-Id: I25b0c62b2ad523a52337128b51469e628209ea3e
Signed-off-by: jpadmana <rpadmanaban.jayashree@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/media/libeffects/factory/EffectsFactory.h b/media/libeffects/factory/EffectsFactory.h
index c1d4319..147ff18 100644
--- a/media/libeffects/factory/EffectsFactory.h
+++ b/media/libeffects/factory/EffectsFactory.h
@@ -32,6 +32,15 @@ typedef struct list_elem_s {
     struct list_elem_s *next;
 } list_elem_t;
 
+// Structure used for storing effects with their sub effects.
+// Used in creating gSubEffectList. Here,
+// object holds the effect desc and the list sub_elem holds the sub effects
+typedef struct list_sub_elem_s {
+    void *object;
+    list_elem_t *sub_elem;
+    struct list_sub_elem_s *next;
+} list_sub_elem_t;
+
 typedef struct lib_entry_s {
     audio_effect_library_t *desc;
     char *name;
@@ -47,6 +56,16 @@ typedef struct effect_entry_s {
     lib_entry_t *lib;
 } effect_entry_t;
 
+// Structure used to store the lib entry
+// and the descriptor of the sub effects.
+// The library entry is to be stored in case of
+// sub effects as the sub effects are not linked
+// to the library list - gLibraryList.
+typedef struct sub_effect_entry_s {
+    lib_entry_t *lib;
+    void *object;
+} sub_effect_entry_t;
+
 #if __cplusplus
 }  // extern "C"
 #endif