90 lines
4.0 KiB
C
90 lines
4.0 KiB
C
/*
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* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
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* Not a Contribution.
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*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef QAHW_EFFECT_VIRTUALIZER_H_
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#define QAHW_EFFECT_VIRTUALIZER_H_
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#include <qahw_effect_api.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define QAHW_EFFECT_VIRTUALIZER_LIBRARY "libqcompostprocbundle.so"
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static const qahw_effect_uuid_t SL_IID_VIRTUALIZER_ = { 0x37cc2c00, 0xdddd, 0x11db, 0x8577,
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{ 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
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static const qahw_effect_uuid_t * const SL_IID_VIRTUALIZER = &SL_IID_VIRTUALIZER_;
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static const qahw_effect_uuid_t SL_IID_VIRTUALIZER_UUID_ = { 0x509a4498, 0x561a, 0x4bea, 0xb3b1,
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{ 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
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static const qahw_effect_uuid_t * const SL_IID_VIRTUALIZER_UUID = &SL_IID_VIRTUALIZER_UUID_;
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/* enumerated parameter settings for virtualizer effect */
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/* to keep in sync with frameworks/base/media/java/android/media/audiofx/Virtualizer.java */
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typedef enum
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{
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VIRTUALIZER_PARAM_STRENGTH_SUPPORTED,
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VIRTUALIZER_PARAM_STRENGTH,
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// used with EFFECT_CMD_GET_PARAM
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// format:
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// parameters int32_t VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES
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// audio_channel_mask_t input channel mask
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// audio_devices_t audio output device
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// output int32_t* an array of length 3 * the number of channels in the mask
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// where entries are the succession of the channel mask
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// of each speaker (i.e. a single bit is selected in the
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// channel mask) followed by the azimuth and the
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// elevation angles.
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// status int -EINVAL if configuration is not supported or invalid or not forcing
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// 0 if configuration is supported and the mode is forced
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// notes:
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// - all angles are expressed in degrees and are relative to the listener,
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// - for azimuth: 0 is the direction the listener faces, 180 is behind the listener, and
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// -90 is to her/his left,
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// - for elevation: 0 is the horizontal plane, +90 is above the listener, -90 is below.
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VIRTUALIZER_PARAM_VIRTUAL_SPEAKER_ANGLES,
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// used with EFFECT_CMD_SET_PARAM
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// format:
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// parameters int32_t VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE
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// audio_devices_t audio output device
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// status int -EINVAL if the device is not supported or invalid
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// 0 if the device is supported and the mode is forced, or forcing
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// was disabled for the AUDIO_DEVICE_NONE audio device.
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VIRTUALIZER_PARAM_FORCE_VIRTUALIZATION_MODE,
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// used with EFFECT_CMD_GET_PARAM
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// format:
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// parameters int32_t VIRTUALIZER_PARAM_VIRTUALIZATION_MODE
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// output audio_device_t audio device reflecting the current virtualization mode,
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// AUDIO_DEVICE_NONE when not virtualizing
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// status int -EINVAL if an error occurred
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// 0 if the output value is successfully retrieved
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VIRTUALIZER_PARAM_VIRTUALIZATION_MODE,
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// Internal paramter specific to qahw.
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// Used to get latency introduced by virtuaizer effect.
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VIRTUALIZER_PARAM_LATENCY = 0x80000000
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} qahw_virtualizer_params;
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /*QAHW_EFFECT_VIRTUALIZER_H_*/
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