android_webview/browser/aw_media_client_android.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "android_webview/browser/aw_media_client_android.h"
   6
   7 #include <utility>
   8
   9 #include "base/logging.h"
  10 #include "base/stl_util.h"
  11 #include "base/strings/string_number_conversions.h"
  12 #include "base/strings/string_split.h"
  13 #include "base/strings/string_util.h"
  14
  15 namespace android_webview {
  16
  17 namespace {
  18
  19 const size_t kGUIDLength = 36U;
  20
  21 #define RCHECK(x)                                    \
  22   if (!(x)) {                                        \
  23     LOG(ERROR) << "Can't parse key-system mapping: " \
  24                << key_system_uuid_mapping;           \
  25     return std::make_pair("", uuid);                 \
  26   }
  27
  28 media::MediaClientAndroid::KeySystemUuidMap::value_type CreateMappingFromString(
  29     const std::string& key_system_uuid_mapping) {
  30   std::vector<uint8_t> uuid;
  31
  32   std::vector<std::string> tokens =
  33       base::SplitString(key_system_uuid_mapping, ",", base::KEEP_WHITESPACE,
  34                         base::SPLIT_WANT_NONEMPTY);
  35   RCHECK(tokens.size() == 2);
  36
  37   std::string key_system;
  38   base::TrimWhitespaceASCII(tokens[0], base::TRIM_ALL, &key_system);
  39
  40   std::string guid(tokens[1]);
  41   RCHECK(guid.length() == kGUIDLength);
  42   base::RemoveChars(guid, "-", &guid);
  43   RCHECK(base::HexStringToBytes(guid, &uuid));
  44
  45   return std::make_pair(key_system, uuid);
  46 }
  47
  48 }  // namespace
  49
  50 AwMediaClientAndroid::AwMediaClientAndroid(
  51     const std::vector<std::string>& key_system_uuid_mappings)
  52     : key_system_uuid_mappings_(key_system_uuid_mappings) {
  53 }
  54
  55 AwMediaClientAndroid::~AwMediaClientAndroid() {
  56 }
  57
  58 void AwMediaClientAndroid::AddKeySystemUUIDMappings(KeySystemUuidMap* map) {
  59   for (const std::string& key_system_uuid_mapping : key_system_uuid_mappings_) {
  60     auto mapping = CreateMappingFromString(key_system_uuid_mapping);
  61     if (!mapping.first.empty())
  62       map->insert(mapping);
  63   }
  64 }
  65
  66 media::MediaDrmBridgeDelegate* AwMediaClientAndroid::GetMediaDrmBridgeDelegate(
  67     const media::UUID& scheme_uuid) {
  68   if (scheme_uuid == widevine_delegate_.GetUUID())
  69     return &widevine_delegate_;
  70   return nullptr;
  71 }
  72
  73 }  // namespace android_webview