ppapi/cpp/audio.cc

   1 // Copyright (c) 2012 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 "ppapi/cpp/audio.h"
   6
   7 #include "ppapi/cpp/instance_handle.h"
   8 #include "ppapi/cpp/module_impl.h"
   9
  10 namespace pp {
  11
  12 namespace {
  13
  14 template <> const char* interface_name<PPB_Audio_1_0>() {
  15   return PPB_AUDIO_INTERFACE_1_0;
  16 }
  17
  18 template <> const char* interface_name<PPB_Audio_1_1>() {
  19   return PPB_AUDIO_INTERFACE_1_1;
  20 }
  21
  22 }  // namespace
  23
  24 Audio::Audio(const InstanceHandle& instance,
  25              const AudioConfig& config,
  26              PPB_Audio_Callback callback,
  27              void* user_data)
  28     : config_(config),
  29       use_1_0_interface_(false) {
  30   if (has_interface<PPB_Audio_1_1>()) {
  31     PassRefFromConstructor(get_interface<PPB_Audio_1_1>()->Create(
  32         instance.pp_instance(), config.pp_resource(), callback, user_data));
  33   }
  34 }
  35
  36 Audio::Audio(const InstanceHandle& instance,
  37              const AudioConfig& config,
  38              PPB_Audio_Callback_1_0 callback,
  39              void* user_data)
  40     : config_(config),
  41       use_1_0_interface_(true) {
  42   if (has_interface<PPB_Audio_1_0>()) {
  43     PassRefFromConstructor(get_interface<PPB_Audio_1_0>()->Create(
  44         instance.pp_instance(), config.pp_resource(), callback, user_data));
  45   }
  46 }
  47
  48 bool Audio::StartPlayback() {
  49   if (has_interface<PPB_Audio_1_1>() && !use_1_0_interface_) {
  50     return PP_ToBool(get_interface<PPB_Audio_1_1>()->StartPlayback(
  51         pp_resource()));
  52   }
  53   if (has_interface<PPB_Audio_1_0>()) {
  54     return PP_ToBool(get_interface<PPB_Audio_1_0>()->StartPlayback(
  55         pp_resource()));
  56   }
  57   return false;
  58 }
  59
  60 bool Audio::StopPlayback() {
  61   if (has_interface<PPB_Audio_1_1>() && !use_1_0_interface_) {
  62     return PP_ToBool(get_interface<PPB_Audio_1_1>()->StopPlayback(
  63         pp_resource()));
  64   }
  65   if (has_interface<PPB_Audio_1_0>()) {
  66     return PP_ToBool(get_interface<PPB_Audio_1_0>()->StopPlayback(
  67         pp_resource()));
  68   }
  69   return false;
  70 }
  71
  72 }  // namespace pp