| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/media/audio/audio_core/pipeline_config.h" |
| |
| namespace media::audio { |
| |
| uint16_t PipelineConfig::channels() const { |
| // The bottommost effect that defines output_channels will define our channelization. |
| for (auto it = root_.effects.rbegin(); it != root_.effects.rend(); ++it) { |
| if (it->output_channels) { |
| return *it->output_channels; |
| } |
| } |
| |
| // If no effect performs rechannelization, then our channelization is determined by the mix stage |
| // itself. |
| return root_.output_channels; |
| } |
| |
| } // namespace media::audio |
