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 {
FindFullName(const std::string & trial_name)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
InitializeModule(const CommandLine & command_line,AllocateFunction alloc,DellocateFunction dealloc,FieldTrialFindFullName field_trial_find,logging::LogMessageHandlerFunction log_handler,webrtc::GetCategoryEnabledPtr trace_get_category_enabled,webrtc::AddTraceEventPtr trace_add_trace_event,CreateWebRtcMediaEngineFunction * create_media_engine,DestroyWebRtcMediaEngineFunction * destroy_media_engine,InitDiagnosticLoggingDelegateFunctionFunction * init_diagnostic_logging)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"
105