Implement a set of "Simplified APIs" for ECM generation for castlabs.com.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=217601738

example/BUILD

@@ -16,12 +16,15 @@ package(
 filegroup(
     name = "binary_release_files",
     srcs = [
-        "simulcrypt_client.cc",
-        "test_simulcrypt_messages.h",
         ":simulcrypt_client",
     ],
 )
 
+cc_library(
+    name = "constants",
+    hdrs = ["constants.h"],
+)
+
 cc_binary(
     name = "simulcrypt_client",
     srcs = ["simulcrypt_client.cc"],

example/constants.h

@@ -0,0 +1,30 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright 2018 Google LLC.
+//
+// This software is licensed under the terms defined in the Widevine Master
+// License Agreement. For a copy of this agreement, please contact
+// widevine-licensing@google.com.
+////////////////////////////////////////////////////////////////////////////////
+
+// Some constant values for testing / demo purpose.
+
+#ifndef MEDIA_CAS_PACKAGER_SDK_EXAMPLE_CONSTANTS_H_
+#define MEDIA_CAS_PACKAGER_SDK_EXAMPLE_CONSTANTS_H_
+
+namespace widevine {
+namespace cas {
+
+const char kDefaultContentId[] = "21140844";
+const char kDefaultProvider[] = "widevine";
+// Size of this IV needs to match ecm_init_params.content_iv_size.
+const char kDefaultContentIv8Bytes[] = {'\x01', '\x01', '\x01', '\x01',
+                                        '\x01', '\x01', '\x01', '\x01'};
+const char kDefaultContentIv16Bytes[] = {
+    '\x01', '\x01', '\x01', '\x01', '\x01', '\x01', '\x01', '\x01',
+    '\x01', '\x01', '\x01', '\x01', '\x01', '\x01', '\x01', '\x01'};
+const char kDefaultTrackTypeSd[] = "SD";
+
+}  // namespace cas
+}  // namespace widevine
+
+#endif  // MEDIA_CAS_PACKAGER_SDK_EXAMPLE_CONSTANTS_H_

example/simulcrypt_client.cc

@@ -6,7 +6,7 @@
 // widevine-licensing@google.com.
 ////////////////////////////////////////////////////////////////////////////////
 
-// Example client that talks to server_main.
+// Example client for demonstrating network calls to public/simulcrypt_server.
 
 #include <errno.h>
 #include <netdb.h>