blob: 20b66ca10dfc1ebae860bd759b804d6aec492248 [file] [log] [blame]
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/modules/include/module_common_types.h"
namespace webrtc {
// Updates the audioFrame's energy (based on its samples).
uint32_t AudioMixerCalculateEnergy(const AudioFrame& audio_frame);
// Ramps up or down the provided audio frame. Ramp(0, 1, frame) will
// linearly increase the samples in the frame from 0 to full volume.
void Ramp(float start_gain, float target_gain, AudioFrame* audio_frame);
// Downmixes or upmixes a frame between stereo and mono.
void RemixFrame(size_t target_number_of_channels, AudioFrame* frame);
} // namespace webrtc