src/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 "third_party/webrtc/modules/audio_processing/include/audio_processing.h"
  12 #include "webrtc/base/basictypes.h"
  13 #include "webrtc/base/logging.h"
  14
  15 #if !defined(LIBPEERCONNECTION_IMPLEMENTATION) || defined(LIBPEERCONNECTION_LIB)
  16 #error "Only compile the allocator proxy with the shared_library implementation"
  17 #endif
  18
  19 #if defined(OS_WIN)
  20 #define ALLOC_EXPORT __declspec(dllexport)
  21 #else
  22 #define ALLOC_EXPORT __attribute__((visibility("default")))
  23 #endif
  24
  25 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  26 // These are used by our new/delete overrides in
  27 // allocator_shim/allocator_proxy.cc
  28 AllocateFunction g_alloc = NULL;
  29 DellocateFunction g_dealloc = NULL;
  30 #endif
  31
  32 // Forward declare of the libjingle internal factory and destroy methods for the
  33 // WebRTC media engine.
  34 cricket::MediaEngineInterface* CreateWebRtcMediaEngine(
  35     webrtc::AudioDeviceModule* adm,
  36     webrtc::AudioDeviceModule* adm_sc,
  37     cricket::WebRtcVideoEncoderFactory* encoder_factory,
  38     cricket::WebRtcVideoDecoderFactory* decoder_factory);
  39
  40 void DestroyWebRtcMediaEngine(cricket::MediaEngineInterface* media_engine);
  41
  42 // Define webrtc:field_trial::FindFullName to provide webrtc with a field trial
  43 // implementation. The implementation is provided by the loader via the
  44 // InitializeModule.
  45 namespace {
  46 FieldTrialFindFullName g_field_trial_find_ = NULL;
  47 }
  48
  49 namespace webrtc {
  50 namespace field_trial {
  51 std::string FindFullName(const std::string& trial_name) {
  52   return g_field_trial_find_(trial_name);
  53 }
  54 }  // namespace field_trial
  55 }  // namespace webrtc
  56
  57 extern "C" {
  58
  59 // Initialize logging, set the forward allocator functions (not on mac), and
  60 // return pointers to libjingle's WebRTC factory methods.
  61 // Called from init_webrtc.cc.
  62 ALLOC_EXPORT
  63 bool InitializeModule(const CommandLine& command_line,
  64 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  65                       AllocateFunction alloc,
  66                       DellocateFunction dealloc,
  67 #endif
  68                       FieldTrialFindFullName field_trial_find,
  69                       logging::LogMessageHandlerFunction log_handler,
  70                       webrtc::GetCategoryEnabledPtr trace_get_category_enabled,
  71                       webrtc::AddTraceEventPtr trace_add_trace_event,
  72                       CreateWebRtcMediaEngineFunction* create_media_engine,
  73                       DestroyWebRtcMediaEngineFunction* destroy_media_engine,
  74                       InitDiagnosticLoggingDelegateFunctionFunction*
  75                           init_diagnostic_logging,
  76                       CreateWebRtcAudioProcessingFunction*
  77                           create_audio_processing) {
  78 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  79   g_alloc = alloc;
  80   g_dealloc = dealloc;
  81 #endif
  82
  83   g_field_trial_find_ = field_trial_find;
  84
  85   *create_media_engine = &CreateWebRtcMediaEngine;
  86   *destroy_media_engine = &DestroyWebRtcMediaEngine;
  87   *init_diagnostic_logging = &rtc::InitDiagnosticLoggingDelegateFunction;
  88   *create_audio_processing = &webrtc::AudioProcessing::Create;
  89
  90   if (CommandLine::Init(0, NULL)) {
  91 #if !defined(OS_WIN)
  92     // This is not needed on Windows since CommandLine::Init has already
  93     // done the equivalent thing via the GetCommandLine() API.
  94     CommandLine::ForCurrentProcess()->AppendArguments(command_line, true);
  95 #endif
  96     logging::LoggingSettings settings;
  97     settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
  98     logging::InitLogging(settings);
  99
 100     // Override the log message handler to forward logs to chrome's handler.
 101     logging::SetLogMessageHandler(log_handler);
 102     webrtc::SetupEventTracer(trace_get_category_enabled,
 103                              trace_add_trace_event);
 104   }
 105
 106   return true;
 107 }
 108 }  // extern "C"