Add cdm::ContentDecryptionModule_9

content_decryption_module_broker.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CDM_CONTENT_DECRYPTION_MODULE_BROKER_H_
+#define CDM_CONTENT_DECRYPTION_MODULE_BROKER_H_
+
+#if defined(_MSC_VER)
+typedef unsigned char uint8_t;
+typedef unsigned int uint32_t;
+#else
+#include <stdint.h>
+#endif
+
+// Define CDM_API so that functionality implemented by the CDM module
+// can be exported to consumers.
+#if defined(WIN32)
+
+#if defined(CDM_IMPLEMENTATION)
+#define CDM_API __declspec(dllexport)
+#else
+#define CDM_API __declspec(dllimport)
+#endif  // defined(CDM_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#define CDM_API __attribute__((visibility("default")))
+#endif  // defined(WIN32)
+
+// Define CdmFilePathCharType to be the type of characters passed when
+// specifying file paths to ProcessHostChallenge()
+#if defined(WIN32)
+// On Windows, for Unicode-aware applications, native pathnames are wchar_t
+// arrays.
+typedef std::wstring::value_type CdmFilePathCharType;
+#else
+// On other platforms, native pathnames are char arrays.
+typedef std::string::value_type CdmFilePathCharType;

[xhwang, 2016/10/31 22:43:47]

Can you use wchar_t and char directly? It's a bit odd to refer to
wstring/string::value_type without using wstring/string directly.

[xhwang, 2016/10/31 22:43:47]

CdmFilePath is a bit misleading; some paths are not "cdm path". How about just
FilePathCharType?

[jrummell, 2016/11/02 20:10:03]

Done.

[jrummell, 2016/11/02 20:10:03]

Done.

+#endif  // defined(OS_WIN)

[xhwang, 2016/10/31 22:43:47]

s/OS_WIN/WIN32?

[jrummell, 2016/11/02 20:10:03]

Done.

+
+extern "C" {
+// Returns the |response| to ProcessHostChallenge(). If the challenge fails,
+// |response| = nullptr and |response_size| = 0. |context| must be the value
+// passed in to ProcessHostChallenge().
+typedef void (*HostResponseFunc)(const uint8_t* response,
+                                 uint32_t response_size,
+                                 void* context);
+
+// This method receives the |challenge| from the CDM as well as a list of
+// additional binary file paths created by the host and a callback function.
+// |response_func| is called when the challenge has been processed, passing
+// |context| along with the desired response data.
+CDM_API void ProcessHostChallenge(const uint8_t* challenge,
+                                  uint32_t challenge_size,
+                                  const CdmFilePathCharType** binary_file_paths,
+                                  uint32_t num_binary_file_paths,
+                                  HostResponseFunc response_func,
+                                  void* context);
+}
+
+#undef CDM_API
+
+#endif  // CDM_CONTENT_DECRYPTION_MODULE_BROKER_H_