From d8fc77101dcf80a3643a00b3446dca1e390ce997 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Thu, 10 Aug 2023 15:33:00 +1000
Subject: Give codecs complete control of their input files

---
 src/codecs/include/source_buffer.hpp | 37 ++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 src/codecs/include/source_buffer.hpp

(limited to 'src/codecs/include/source_buffer.hpp')

diff --git a/src/codecs/include/source_buffer.hpp b/src/codecs/include/source_buffer.hpp
new file mode 100644
index 00000000..d0d7635a
--- /dev/null
+++ b/src/codecs/include/source_buffer.hpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <functional>
+
+#include "span.hpp"
+
+#include "codec.hpp"
+
+namespace codecs {
+
+class SourceBuffer {
+ public:
+  SourceBuffer();
+  ~SourceBuffer();
+
+  auto Refill(IStream* src) -> bool;
+  auto AddBytes(std::function<size_t(cpp::span<std::byte>)> writer) -> void;
+  auto ConsumeBytes(std::function<size_t(cpp::span<std::byte>)> reader) -> void;
+
+  SourceBuffer(const SourceBuffer&) = delete;
+  SourceBuffer& operator=(const SourceBuffer&) = delete;
+
+ private:
+  const cpp::span<std::byte> buffer_;
+  size_t bytes_in_buffer_;
+  size_t offset_of_bytes_;
+};
+
+}  // namespace codecs
-- 
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