third_party/libjingle/overrides/initialize_module.cc

   1 // Copyright 2013 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 "allocator_shim/allocator_stub.h"
   6 #include "base/command_line.h"
   7 #include "base/files/file_path.h"
   8 #include "base/logging.h"
   9 #include "init_webrtc.h"
  10 #include "talk/media/webrtc/webrtcmediaengine.h"
  11 #include "webrtc/base/basictypes.h"
  12 #include "webrtc/base/logging.h"
  13
  14 #if !defined(LIBPEERCONNECTION_IMPLEMENTATION) || defined(LIBPEERCONNECTION_LIB)
  15 #error "Only compile the allocator proxy with the shared_library implementation"
  16 #endif
  17
  18 #if defined(OS_WIN)
  19 #define ALLOC_EXPORT __declspec(dllexport)
  20 #else
  21 #define ALLOC_EXPORT __attribute__((visibility("default")))
  22 #endif
  23
  24 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  25 // These are used by our new/delete overrides in
  26 // allocator_shim/allocator_proxy.cc
  27 AllocateFunction g_alloc = NULL;
  28 DellocateFunction g_dealloc = NULL;
  29 #endif
  30
  31 // Forward declare of the libjingle internal factory and destroy methods for the
  32 // WebRTC media engine.
  33 cricket::MediaEngineInterface* CreateWebRtcMediaEngine(
  34     webrtc::AudioDeviceModule* adm,
  35     webrtc::AudioDeviceModule* adm_sc,
  36     cricket::WebRtcVideoEncoderFactory* encoder_factory,
  37     cricket::WebRtcVideoDecoderFactory* decoder_factory);
  38
  39 void DestroyWebRtcMediaEngine(cricket::MediaEngineInterface* media_engine);
  40
  41 // Define webrtc:field_trial::FindFullName to provide webrtc with a field trial
  42 // implementation. The implementation is provided by the loader via the
  43 // InitializeModule.
  44 namespace {
  45 FieldTrialFindFullName g_field_trial_find_ = NULL;
  46 }
  47
  48 namespace webrtc {
  49 namespace field_trial {
  50 std::string FindFullName(const std::string& trial_name) {
  51   return g_field_trial_find_(trial_name);
  52 }
  53 }  // namespace field_trial
  54 }  // namespace webrtc
  55
  56 extern "C" {
  57
  58 // Initialize logging, set the forward allocator functions (not on mac), and
  59 // return pointers to libjingle's WebRTC factory methods.
  60 // Called from init_webrtc.cc.
  61 ALLOC_EXPORT
  62 bool InitializeModule(const CommandLine& command_line,
  63 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  64                       AllocateFunction alloc,
  65                       DellocateFunction dealloc,
  66 #endif
  67                       FieldTrialFindFullName field_trial_find,
  68                       logging::LogMessageHandlerFunction log_handler,
  69                       webrtc::GetCategoryEnabledPtr trace_get_category_enabled,
  70                       webrtc::AddTraceEventPtr trace_add_trace_event,
  71                       CreateWebRtcMediaEngineFunction* create_media_engine,
  72                       DestroyWebRtcMediaEngineFunction* destroy_media_engine,
  73                       InitDiagnosticLoggingDelegateFunctionFunction*
  74                           init_diagnostic_logging) {
  75 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  76   g_alloc = alloc;
  77   g_dealloc = dealloc;
  78 #endif
  79
  80   g_field_trial_find_ = field_trial_find;
  81
  82   *create_media_engine = &CreateWebRtcMediaEngine;
  83   *destroy_media_engine = &DestroyWebRtcMediaEngine;
  84   *init_diagnostic_logging = &rtc::InitDiagnosticLoggingDelegateFunction;
  85
  86   if (CommandLine::Init(0, NULL)) {
  87 #if !defined(OS_WIN)
  88     // This is not needed on Windows since CommandLine::Init has already
  89     // done the equivalent thing via the GetCommandLine() API.
  90     CommandLine::ForCurrentProcess()->AppendArguments(command_line, true);
  91 #endif
  92     logging::LoggingSettings settings;
  93     settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
  94     logging::InitLogging(settings);
  95
  96     // Override the log message handler to forward logs to chrome's handler.
  97     logging::SetLogMessageHandler(log_handler);
  98     webrtc::SetupEventTracer(trace_get_category_enabled,
  99                              trace_add_trace_event);
 100   }
 101
 102   return true;
 103 }
 104 }  // extern "C"