blob: 807e69e154087c4bac841c60be9d1aadbb45fa9c [file] [log] [blame]
// Copyright 2018 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 <zircon/types.h>
#include <vector>
#include "src/media/audio/lib/effects_loader/effect.h"
namespace media::audio {
// EffectsProcessor represents a chain of active effect instances and manages chaining calls of
// Process/ProcessInPlace through a chain of effects.
// This class is designed to be used synchronously and is not explicitly multi-thread-safe.
class EffectsProcessor {
void AddEffect(Effect e);
// Returns the number of active instances in the enclosed effect chain.
[[nodiscard]] uint16_t size() const { return effects_chain_.size(); }
[[nodiscard]] auto begin() { return effects_chain_.begin(); }
[[nodiscard]] auto end() { return effects_chain_.end(); }
[[nodiscard]] auto cbegin() const { return effects_chain_.cbegin(); }
[[nodiscard]] auto cend() const { return effects_chain_.cend(); }
// Returns the instance at the specified (zero-based) position in the chain.
[[nodiscard]] const Effect& GetEffectAt(size_t position) const;
// These maps directly to the corresponding ABI call, for each instance.
zx_status_t ProcessInPlace(uint32_t num_frames, float* audio_buff_in_out) const;
zx_status_t Flush() const;
std::vector<Effect> effects_chain_;
} // namespace media::audio