1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_CHANNELS_H_
18#define ANDROID_CHANNELS_H_
19
20#include <system/audio.h>
21#include <SLES/OpenSLES.h>
22
23#define SL_ANDROID_SPEAKER_COUNT_MAX            FCC_8
24#define SL_ANDROID_INDEXED_SPEAKER_MASK_ALL     ((SLuint32) \
25                                                ((1 << SL_ANDROID_SPEAKER_COUNT_MAX) - 1))
26#define SL_ANDROID_POSITIONAL_SPEAKER_MASK_ALL  \
27        ( SL_SPEAKER_FRONT_LEFT \
28        | SL_SPEAKER_FRONT_RIGHT \
29        | SL_SPEAKER_FRONT_CENTER \
30        | SL_SPEAKER_LOW_FREQUENCY \
31        | SL_SPEAKER_BACK_LEFT \
32        | SL_SPEAKER_BACK_RIGHT \
33        | SL_SPEAKER_FRONT_LEFT_OF_CENTER \
34        | SL_SPEAKER_FRONT_RIGHT_OF_CENTER \
35        | SL_SPEAKER_BACK_CENTER \
36        | SL_SPEAKER_SIDE_LEFT \
37        | SL_SPEAKER_SIDE_RIGHT \
38        | SL_SPEAKER_TOP_CENTER \
39        | SL_SPEAKER_TOP_FRONT_LEFT \
40        | SL_SPEAKER_TOP_FRONT_CENTER \
41        | SL_SPEAKER_TOP_FRONT_RIGHT \
42        | SL_SPEAKER_TOP_BACK_LEFT \
43        | SL_SPEAKER_TOP_BACK_CENTER \
44        | SL_SPEAKER_TOP_BACK_RIGHT )
45
46// Channel count and channel mask definitions
47
48#define SL_ANDROID_SPEAKER_QUAD (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT \
49        | SL_SPEAKER_BACK_LEFT | SL_SPEAKER_BACK_RIGHT)
50
51#define SL_ANDROID_SPEAKER_5DOT1 (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT \
52        | SL_SPEAKER_FRONT_CENTER  | SL_SPEAKER_LOW_FREQUENCY| SL_SPEAKER_BACK_LEFT \
53        | SL_SPEAKER_BACK_RIGHT)
54
55#define SL_ANDROID_SPEAKER_7DOT1 (SL_ANDROID_SPEAKER_5DOT1 | SL_SPEAKER_SIDE_LEFT \
56        | SL_SPEAKER_SIDE_RIGHT)
57
58extern SLuint32 sles_channel_out_mask_from_count(unsigned channelCount);
59extern SLuint32 sles_channel_in_mask_from_count(unsigned channelCount);
60extern SLuint32 sles_channel_count_from_mask(SLuint32 mask);
61extern SLboolean sles_is_channel_mask_valid(SLuint32 mask);
62
63extern audio_channel_representation_t sles_to_audio_channel_mask_representation(SLuint32 mask);
64extern audio_channel_mask_t sles_to_audio_output_channel_mask(SLuint32 mask);
65extern audio_channel_mask_t sles_to_audio_input_channel_mask(SLuint32 mask);
66
67#define SL_ANDROID_UNKNOWN_CHANNELMASK 0
68
69#endif // ANDROID_CHANNELS_H_
70