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      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/base/basictypes.h"
     11 #include "talk/media/webrtc/webrtcmediaengine.h"
     12 #include "third_party/libjingle/overrides/talk/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 extern "C" {
     42 
     43 // Initialize logging, set the forward allocator functions (not on mac), and
     44 // return pointers to libjingle's WebRTC factory methods.
     45 // Called from init_webrtc.cc.
     46 ALLOC_EXPORT
     47 bool InitializeModule(const CommandLine& command_line,
     48 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
     49                       AllocateFunction alloc,
     50                       DellocateFunction dealloc,
     51 #endif
     52                       logging::LogMessageHandlerFunction log_handler,
     53                       webrtc::GetCategoryEnabledPtr trace_get_category_enabled,
     54                       webrtc::AddTraceEventPtr trace_add_trace_event,
     55                       CreateWebRtcMediaEngineFunction* create_media_engine,
     56                       DestroyWebRtcMediaEngineFunction* destroy_media_engine,
     57                       InitDiagnosticLoggingDelegateFunctionFunction*
     58                           init_diagnostic_logging) {
     59 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
     60   g_alloc = alloc;
     61   g_dealloc = dealloc;
     62 #endif
     63 
     64   *create_media_engine = &CreateWebRtcMediaEngine;
     65   *destroy_media_engine = &DestroyWebRtcMediaEngine;
     66   *init_diagnostic_logging = &talk_base::InitDiagnosticLoggingDelegateFunction;
     67 
     68   if (CommandLine::Init(0, NULL)) {
     69 #if !defined(OS_WIN)
     70     // This is not needed on Windows since CommandLine::Init has already
     71     // done the equivalent thing via the GetCommandLine() API.
     72     CommandLine::ForCurrentProcess()->AppendArguments(command_line, true);
     73 #endif
     74     logging::LoggingSettings settings;
     75     settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
     76     logging::InitLogging(settings);
     77 
     78     // Override the log message handler to forward logs to chrome's handler.
     79     logging::SetLogMessageHandler(log_handler);
     80     webrtc::SetupEventTracer(trace_get_category_enabled,
     81                              trace_add_trace_event);
     82   }
     83 
     84   return true;
     85 }
     86 }  // extern "C"
     87