From c1b03c151edc12f9ec46e63ae6fd2744dc2f59b5 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Wed, 7 Feb 2024 21:29:28 +1100
Subject: put opus' allocations into internal ram

it's a pretty chonky codec, but this seems like the best way to tame its
performance.
---
 lib/opusfile/CMakeLists.txt           |  2 ++
 lib/opusfile/include/custom_support.h | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 lib/opusfile/include/custom_support.h

(limited to 'lib/opusfile')

diff --git a/lib/opusfile/CMakeLists.txt b/lib/opusfile/CMakeLists.txt
index 94d1af9e..f9b5e4ce 100644
--- a/lib/opusfile/CMakeLists.txt
+++ b/lib/opusfile/CMakeLists.txt
@@ -17,4 +17,6 @@ set(OPUS_BUILD_TESTING OFF)
 set(OPUS_BUILD_SHARED_LIBS OFF)
 
 add_subdirectory($ENV{PROJ_PATH}/lib/opus ${CMAKE_CURRENT_BINARY_DIR}/opus)
+target_compile_definitions(opus PRIVATE CUSTOM_SUPPORT)
+target_include_directories(opus PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include)
 target_link_libraries(${COMPONENT_LIB} PUBLIC opus)
diff --git a/lib/opusfile/include/custom_support.h b/lib/opusfile/include/custom_support.h
new file mode 100644
index 00000000..d99cc5e2
--- /dev/null
+++ b/lib/opusfile/include/custom_support.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "esp_heap_caps.h"
+#include "opus_defines.h"
+
+#define OVERRIDE_OPUS_ALLOC
+#define OVERRIDE_OPUS_FREE
+
+static OPUS_INLINE void *opus_alloc (size_t size)
+{
+   return heap_caps_malloc(size, MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL);
+}
+
+static OPUS_INLINE void opus_free (void *ptr)
+{
+   heap_caps_free(ptr);
+}
-- 
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