1 files changed, 35 insertions, 0 deletions
diff --git a/core/fxcodec/codec/codec_module_iface.h b/core/fxcodec/codec/codec_module_iface.h
new file mode 100644
index 0000000000..08469726aa
--- /dev/null
+++ b/core/fxcodec/codec/codec_module_iface.h
@@ -0,0 +1,35 @@
+// Copyright 2018 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_
+#define CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_
+
+#include "core/fxcrt/fx_system.h"
+#include "third_party/base/span.h"
+
+class CFX_DIBAttribute;
+
+class CodecModuleIface {
+ public:
+  class Context {
+   public:
+    virtual ~Context() {}
+  };
+
+  virtual ~CodecModuleIface() {}
+
+  // Returns the number of unprocessed bytes remaining in the input buffer.
+  virtual FX_FILESIZE GetAvailInput(Context* pContext) const = 0;
+
+  // Provides a new input buffer to the codec. Returns true on success,
+  // setting details about the image extracted from the buffer into |pAttribute|
+  // (if provided and the codec is capable providing that information).
+  virtual bool Input(Context* pContext,
+                     pdfium::span<uint8_t> src_buf,
+                     CFX_DIBAttribute* pAttribute) = 0;
+};
+
+#endif  // CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_