webrtc_m130/webrtc/voice_engine/output_mixer_internal.h
andrew@webrtc.org 50b2efef6e Add a wrapper around PushSincResampler and the old Resampler.
The old resampler is used whenever it supports the requested rates. Otherwise
the sinc resampler is enabled.

Integrated with output_mixer in order to test the change through
output_mixer_unittest. The sinc resampler will not yet be used, since we don't
feed VoE with any rates that trigger it.

BUG=webrtc:1395
R=bjornv@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1355004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3915 4adac7df-926f-26a2-2b94-8c16560cd09d
2013-04-29 17:27:29 +00:00

34 lines
1.1 KiB
C++

/*
* Copyright (c) 2012 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.
*/
#ifndef WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_INTERNAL_H_
#define WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_INTERNAL_H_
namespace webrtc {
class AudioFrame;
class PushResampler;
namespace voe {
// Upmix or downmix and resample the audio in |src_frame| to |dst_frame|.
// Expects |dst_frame| to have its |num_channels_| and |sample_rate_hz_| set to
// the desired values. Updates |samples_per_channel_| accordingly.
//
// On failure, returns -1 and copies |src_frame| to |dst_frame|.
int RemixAndResample(const AudioFrame& src_frame,
PushResampler* resampler,
AudioFrame* dst_frame);
} // namespace voe
} // namespace webrtc
#endif // VOICE_ENGINE_OUTPUT_MIXER_INTERNAL_H_