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_util.h"
  13
  14 namespace android_webview {
  15
  16 namespace {
  17
  18 const size_t kGUIDLength = 36U;
  19
  20 #define RCHECK(x)                                    \
  21   if (!(x)) {                                        \
  22     LOG(ERROR) << "Can't parse key-system mapping: " \
  23                << key_system_uuid_mapping;           \
  24     return std::make_pair("", uuid);                 \
  25   }
  26
  27 media::MediaClientAndroid::KeySystemUuidMap::value_type CreateMappingFromString(
  28     const std::string& key_system_uuid_mapping) {
  29   std::vector<uint8_t> uuid;
  30
  31   std::vector<std::string> tokens;
  32   Tokenize(key_system_uuid_mapping, ",", &tokens);
  33   RCHECK(tokens.size() == 2);
  34
  35   std::string key_system;
  36   base::TrimWhitespaceASCII(tokens[0], base::TRIM_ALL, &key_system);
  37
  38   std::string guid(tokens[1]);
  39   RCHECK(guid.length() == kGUIDLength);
  40   base::RemoveChars(guid, "-", &guid);
  41   RCHECK(base::HexStringToBytes(guid, &uuid));
  42
  43   return std::make_pair(key_system, uuid);
  44 }
  45
  46 }  // namespace
  47
  48 AwMediaClientAndroid::AwMediaClientAndroid(
  49     const std::vector<std::string>& key_system_uuid_mappings)
  50     : key_system_uuid_mappings_(key_system_uuid_mappings) {
  51 }
  52
  53 AwMediaClientAndroid::~AwMediaClientAndroid() {
  54 }
  55
  56 void AwMediaClientAndroid::AddKeySystemUUIDMappings(KeySystemUuidMap* map) {
  57   for (const std::string& key_system_uuid_mapping : key_system_uuid_mappings_) {
  58     auto mapping = CreateMappingFromString(key_system_uuid_mapping);
  59     if (!mapping.first.empty())
  60       map->insert(mapping);
  61   }
  62 }
  63
  64 media::MediaDrmBridgeDelegate* AwMediaClientAndroid::GetMediaDrmBridgeDelegate(
  65     const media::UUID& scheme_uuid) {
  66   if (scheme_uuid == widevine_delegate_.GetUUID())
  67     return &widevine_delegate_;
  68   return nullptr;
  69 }
  70
  71 }  // namespace android_webview