CmaRenderer is dead. Long live MojoRenderer.

chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.cc

-// Copyright 2014 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.
-
-#include "chromecast/media/cma/ipc_streamer/decrypt_config_marshaller.h"
-
-#include <stddef.h>
-
-#include "base/logging.h"
-#include "chromecast/media/cma/base/cast_decrypt_config_impl.h"
-#include "chromecast/media/cma/ipc/media_message.h"
-#include "chromecast/public/media/cast_decrypt_config.h"
-
-namespace chromecast {
-namespace media {
-
-namespace {
-const size_t kMaxKeyIdSize = 256;
-const size_t kMaxIvSize = 256;
-const size_t kMaxSubsampleCount = 1024;
-}
-
-// static
-void DecryptConfigMarshaller::Write(const CastDecryptConfig& config,
-                                    MediaMessage* msg) {
-  CHECK_GT(config.key_id().size(), 0u);
-  CHECK_GT(config.iv().size(), 0u);
-  CHECK_GT(config.subsamples().size(), 0u);
-
-  CHECK(msg->WritePod(config.key_id().size()));
-  CHECK(msg->WriteBuffer(config.key_id().data(), config.key_id().size()));
-  CHECK(msg->WritePod(config.iv().size()));
-  CHECK(msg->WriteBuffer(config.iv().data(), config.iv().size()));
-  CHECK(msg->WritePod(config.subsamples().size()));
-  for (size_t k = 0; k < config.subsamples().size(); k++) {
-    CHECK(msg->WritePod(config.subsamples()[k].clear_bytes));
-    CHECK(msg->WritePod(config.subsamples()[k].cypher_bytes));
-  }
-}
-
-// static
-std::unique_ptr<CastDecryptConfig> DecryptConfigMarshaller::Read(
-    MediaMessage* msg) {
-  size_t key_id_size = 0;
-  CHECK(msg->ReadPod(&key_id_size));
-  CHECK_GT(key_id_size, 0u);
-  CHECK_LT(key_id_size, kMaxKeyIdSize);
-  std::unique_ptr<char[]> key_id(new char[key_id_size]);
-  CHECK(msg->ReadBuffer(key_id.get(), key_id_size));
-
-  size_t iv_size = 0;
-  CHECK(msg->ReadPod(&iv_size));
-  CHECK_GT(iv_size, 0u);
-  CHECK_LT(iv_size, kMaxIvSize);
-  std::unique_ptr<char[]> iv(new char[iv_size]);
-  CHECK(msg->ReadBuffer(iv.get(), iv_size));
-
-  size_t subsample_count = 0;
-  CHECK(msg->ReadPod(&subsample_count));
-  CHECK_GT(subsample_count, 0u);
-  CHECK_LT(subsample_count, kMaxSubsampleCount);
-  std::vector<SubsampleEntry> subsamples(subsample_count);
-  for (size_t k = 0; k < subsample_count; k++) {
-    subsamples[k].clear_bytes = 0;
-    subsamples[k].cypher_bytes = 0;
-    CHECK(msg->ReadPod(&subsamples[k].clear_bytes));
-    CHECK(msg->ReadPod(&subsamples[k].cypher_bytes));
-  }
-
-  return std::unique_ptr<CastDecryptConfig>(
-      new CastDecryptConfigImpl(std::string(key_id.get(), key_id_size),
-                                std::string(iv.get(), iv_size), subsamples));
-}
-
-}  // namespace media
-}  // namespace chromecast