third_party/libjingle/overrides/init_webrtc.h

   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 metrics {
  27 class Histogram;
  28 }  // namespace metrics
  29 }  // namespace webrtc
  30
  31 typedef std::string (*FieldTrialFindFullName)(const std::string& trial_name);
  32
  33 typedef webrtc::metrics::Histogram* (*RtcHistogramFactoryGetCounts)(
  34     const std::string& name, int min, int max, int bucket_count);
  35 typedef webrtc::metrics::Histogram* (*RtcHistogramFactoryGetEnumeration)(
  36     const std::string& name, int boundary);
  37 typedef void (*RtcHistogramAdd)(
  38     webrtc::metrics::Histogram* histogram_pointer,
  39     const std::string& name,
  40     int sample);
  41
  42 typedef cricket::MediaEngineInterface* (*CreateWebRtcMediaEngineFunction)(
  43     webrtc::AudioDeviceModule* adm,
  44     webrtc::AudioDeviceModule* adm_sc,
  45     cricket::WebRtcVideoEncoderFactory* encoder_factory,
  46     cricket::WebRtcVideoDecoderFactory* decoder_factory);
  47
  48 typedef void (*DestroyWebRtcMediaEngineFunction)(
  49     cricket::MediaEngineInterface* media_engine);
  50
  51 typedef void (*InitDiagnosticLoggingDelegateFunctionFunction)(
  52     void (*DelegateFunction)(const std::string&));
  53
  54 // A typedef for the main initialize function in libpeerconnection.
  55 // This will initialize logging in the module with the proper arguments
  56 // as well as provide pointers back to a couple webrtc factory functions.
  57 // The reason we get pointers to these functions this way is to avoid having
  58 // to go through GetProcAddress et al and rely on specific name mangling.
  59 // TODO(tommi): The number of functions is growing. Use a struct.
  60 typedef bool (*InitializeModuleFunction)(
  61     const base::CommandLine& command_line,
  62 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  63     AllocateFunction alloc,
  64     DellocateFunction dealloc,
  65 #endif
  66     FieldTrialFindFullName field_trial_find,
  67     RtcHistogramFactoryGetCounts factory_get_counts,
  68     RtcHistogramFactoryGetEnumeration factory_get_enumeration,
  69     RtcHistogramAdd histogram_add,
  70     logging::LogMessageHandlerFunction log_handler,
  71     webrtc::GetCategoryEnabledPtr trace_get_category_enabled,
  72     webrtc::AddTraceEventPtr trace_add_trace_event,
  73     CreateWebRtcMediaEngineFunction* create_media_engine,
  74     DestroyWebRtcMediaEngineFunction* destroy_media_engine,
  75     InitDiagnosticLoggingDelegateFunctionFunction* init_diagnostic_logging);
  76
  77 #if !defined(LIBPEERCONNECTION_IMPLEMENTATION)
  78 // Load and initialize the shared WebRTC module (libpeerconnection).
  79 // Call this explicitly to load and initialize the WebRTC module (e.g. before
  80 // initializing the sandbox in Chrome).
  81 // If not called explicitly, this function will still be called from the main
  82 // CreateWebRtcMediaEngine factory function the first time it is called.
  83 bool InitializeWebRtcModule();
  84 #endif
  85
  86 #endif // THIRD_PARTY_LIBJINGLE_OVERRIDES_INIT_WEBRTC_H_