1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef QAHW_EFFECT_VISUALIZER_H_
#define QAHW_EFFECT_VISUALIZER_H_
#include <qahw_effect_api.h>
#if __cplusplus
extern "C" {
#endif
#define QAHW_EFFECT_VISUALIZER_LIBRARY "libqcomvisualizer.so"
static const qahw_effect_uuid_t SL_IID_VISUALIZATION_ =
{ 0xe46b26a0, 0xdddd, 0x11db, 0x8afd, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
static const qahw_effect_uuid_t * const SL_IID_VISUALIZATION = &SL_IID_VISUALIZATION_;
static const qahw_effect_uuid_t SL_IID_VISUALIZATION_UUID_ =
{ 0x7a8044a0, 0x1a71, 0x11e3, 0xa184, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
static const qahw_effect_uuid_t * const SL_IID_VISUALIZATION_UUID = &SL_IID_VISUALIZATION_UUID_;
#define VISUALIZER_CAPTURE_SIZE_MAX 1024 // maximum capture size in samples
#define VISUALIZER_CAPTURE_SIZE_MIN 128 // minimum capture size in samples
// to keep in sync with frameworks/base/media/java/android/media/audiofx/Visualizer.java
#define VISUALIZER_SCALING_MODE_NORMALIZED 0
#define VISUALIZER_SCALING_MODE_AS_PLAYED 1
#define MEASUREMENT_MODE_NONE 0x0
#define MEASUREMENT_MODE_PEAK_RMS 0x1
#define MEASUREMENT_IDX_PEAK 0
#define MEASUREMENT_IDX_RMS 1
/* enumerated parameters for Visualizer effect */
typedef enum
{
VISUALIZER_PARAM_CAPTURE_SIZE, // Sets the number PCM samples in the capture.
VISUALIZER_PARAM_SCALING_MODE, // Sets the way the captured data is scaled
VISUALIZER_PARAM_LATENCY, // Informs the visualizer about the downstream latency
VISUALIZER_PARAM_MEASUREMENT_MODE, // Sets which measurements are to be made
} qahw_visualizer_params;
/* commands */
typedef enum
{
VISUALIZER_CMD_CAPTURE = QAHW_EFFECT_CMD_FIRST_PROPRIETARY, // Gets the latest PCM capture.
VISUALIZER_CMD_MEASURE, // Gets the current measurements
} qahw_visualizer_cmds;
// VISUALIZER_CMD_CAPTURE retrieves the latest PCM snapshot captured by the visualizer engine.
// It returns the number of samples specified by VISUALIZER_PARAM_CAPTURE_SIZE
// in 8 bit unsigned format (0 = 0x80)
// VISUALIZER_CMD_MEASURE retrieves the lastest measurements as int32_t saved in the
// MEASUREMENT_IDX_* array index order.
#if __cplusplus
} // extern "C"
#endif
#endif /*QAHW_EFFECT_VISUALIZER_H_*/
|
