src/starboard/shared/uwp/media_get_audio_configuration.cc

// Copyright 2018 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "starboard/media.h"
#include "starboard/shared/uwp/wasapi_audio.h"

using starboard::shared::uwp::WASAPIAudioDevice;

SB_EXPORT bool SbMediaGetAudioConfiguration(
    int output_index,
    SbMediaAudioConfiguration* out_configuration) {
  if (output_index != 0 || out_configuration == NULL) {
    return false;
  }

  out_configuration->index = 0;
  out_configuration->connector = kSbMediaAudioConnectorNone;
  out_configuration->latency = 0;
  out_configuration->coding_type = kSbMediaAudioCodingTypePcm;

  Microsoft::WRL::ComPtr<WASAPIAudioDevice> audioDevice =
      Microsoft::WRL::Make<WASAPIAudioDevice>();

  int channels = audioDevice->GetNumChannels();

  if (channels < 2) {
    out_configuration->number_of_channels = 2;
  } else {
    out_configuration->number_of_channels = channels;
  }

  return true;
}