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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 #ifndef THIRD_PARTY_LIBJINGLE_OVERRIDES_INIT_WEBRTC_H_
      6 #define THIRD_PARTY_LIBJINGLE_OVERRIDES_INIT_WEBRTC_H_
      7 
      8 #include <string>
      9 
     10 #include "allocator_shim/allocator_stub.h"
     11 #include "base/logging.h"
     12 #include "third_party/webrtc/system_wrappers/interface/event_tracer.h"
     13 
     14 namespace base {
     15 class CommandLine;
     16 }
     17 
     18 namespace cricket {
     19 class MediaEngineInterface;
     20 class WebRtcVideoDecoderFactory;
     21 class WebRtcVideoEncoderFactory;
     22 }  // namespace cricket
     23 
     24 namespace webrtc {
     25 class AudioDeviceModule;
     26 }  // namespace webrtc
     27 
     28 typedef std::string (*FieldTrialFindFullName)(const std::string& trial_name);
     29 
     30 typedef cricket::MediaEngineInterface* (*CreateWebRtcMediaEngineFunction)(
     31     webrtc::AudioDeviceModule* adm,
     32     webrtc::AudioDeviceModule* adm_sc,
     33     cricket::WebRtcVideoEncoderFactory* encoder_factory,
     34     cricket::WebRtcVideoDecoderFactory* decoder_factory);
     35 
     36 typedef void (*DestroyWebRtcMediaEngineFunction)(
     37     cricket::MediaEngineInterface* media_engine);
     38 
     39 typedef void (*InitDiagnosticLoggingDelegateFunctionFunction)(
     40     void (*DelegateFunction)(const std::string&));
     41 
     42 // A typedef for the main initialize function in libpeerconnection.
     43 // This will initialize logging in the module with the proper arguments
     44 // as well as provide pointers back to a couple webrtc factory functions.
     45 // The reason we get pointers to these functions this way is to avoid having
     46 // to go through GetProcAddress et al and rely on specific name mangling.
     47 typedef bool (*InitializeModuleFunction)(
     48     const base::CommandLine& command_line,
     49 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
     50     AllocateFunction alloc,
     51     DellocateFunction dealloc,
     52 #endif
     53     FieldTrialFindFullName field_trial_find,
     54     logging::LogMessageHandlerFunction log_handler,
     55     webrtc::GetCategoryEnabledPtr trace_get_category_enabled,
     56     webrtc::AddTraceEventPtr trace_add_trace_event,
     57     CreateWebRtcMediaEngineFunction* create_media_engine,
     58     DestroyWebRtcMediaEngineFunction* destroy_media_engine,
     59     InitDiagnosticLoggingDelegateFunctionFunction* init_diagnostic_logging);
     60 
     61 #if !defined(LIBPEERCONNECTION_IMPLEMENTATION)
     62 // Load and initialize the shared WebRTC module (libpeerconnection).
     63 // Call this explicitly to load and initialize the WebRTC module (e.g. before
     64 // initializing the sandbox in Chrome).
     65 // If not called explicitly, this function will still be called from the main
     66 // CreateWebRtcMediaEngine factory function the first time it is called.
     67 bool InitializeWebRtcModule();
     68 #endif
     69 
     70 #endif // THIRD_PARTY_LIBJINGLE_OVERRIDES_INIT_WEBRTC_H_
     71