android_defs.h revision 262059f71a68edc5e510427c63f5f1623d3672a8 
1/*
2 * Copyright (C) 2010 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
18/**
19 * Used to define the mapping from an OpenSL ES audio player to an Android
20 * media framework object
21 */
22enum AndroidObject_type {
23    INVALID_TYPE     =-1,
24    A_PLR_URI_FD     = 0, // audio player, compressed data, URI or FD data source
25    A_PLR_PCM_BQ     = 1, // audio player, PCM, buffer queue data source
26    A_PLR_TS_ABQ     = 2, // audio player, transport stream, Android buffer queue data source
27    AV_PLR_TS_ABQ    = 3, // audio video player, transport stream, Android buffer queue data source
28    AV_PLR_URI_FD    = 4, // audio video player, compressed data, URI or FD data source
29    NUM_AUDIOPLAYER_MAP_TYPES
30};
31
32
33/**
34 * Used to define the states of the OpenSL ES / OpenMAX AL object initialization and preparation
35 * with regards to the Android-side of the data
36 */
37enum AndroidObject_state {
38    ANDROID_UNINITIALIZED = -1,
39    ANDROID_PREPARING,
40    ANDROID_READY,
41    NUM_ANDROID_STATES
42};
43
44
45#define ANDROID_DEFAULT_OUTPUT_STREAM_TYPE android::AudioSystem::MUSIC
46
47#define PLAYER_SUCCESS 1
48
49#define PLAYER_FD_FIND_FILE_SIZE ((int64_t)0xFFFFFFFFFFFFFFFFll)
50
51
52/*
53 * Structure to maintain the set of audio levels about a player
54 */
55typedef struct AndroidAudioLevels_struct {
56/** send level to aux effect, there's a single aux bus, so there's a single level */
57    SLmillibel mAuxSendLevel;
58    /**
59     * Amplification (can be attenuation) factor derived for the VolumeLevel
60     */
61    float mAmplFromVolLevel;
62    /**
63     * Left/right amplification (can be attenuations) factors derived for the StereoPosition
64     */
65    float mAmplFromStereoPos[STEREO_CHANNELS];
66    /**
67     * Attenuation factor derived from direct level
68     */
69    float mAmplFromDirectLevel;
70} AndroidAudioLevels;
71
72
73typedef void (*notif_client_t)(int event, const int data1, void* notifUser);
74
75
76/**
77 * events sent to mNotifyClient during prepare, prefetch, and playback
78 */
79#define PLAYEREVENT_PREPARED                "prep"
80#define PLAYEREVENT_PREFETCHSTATUSCHANGE    "prsc"
81#define PLAYEREVENT_PREFETCHFILLLEVELUPDATE "pflu"
82#define PLAYEREVENT_ENDOFSTREAM             "eos"
83#define PLAYEREVENT_NEW_AUDIOTRACK          "nwat"
84
85
86namespace android {
87
88enum {
89    kDataLocatorNone = 'none',
90    kDataLocatorUri  = 'uri',
91    kDataLocatorFd   = 'fd',
92    };
93
94struct FdInfo {
95    int fd;
96    int64_t offset;
97    int64_t length;
98};
99
100union DataLocator {
101    char* uri;
102    FdInfo fdi;
103};
104
105} // namespace android
106