summaryrefslogtreecommitdiffstats
path: root/media/libmedia/IAudioPolicyServiceClient.cpp
blob: d6207ceb00b205c1259b3004ac86b977496f91f3 (plain)
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
/*
 * Copyright (C) 2009 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.
 */

#define LOG_TAG "IAudioPolicyServiceClient"
#include <utils/Log.h>

#include <stdint.h>
#include <sys/types.h>

#include <binder/Parcel.h>

#include <media/IAudioPolicyServiceClient.h>
#include <media/AudioSystem.h>

namespace android {

enum {
    PORT_LIST_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
    PATCH_LIST_UPDATE,
    MIX_STATE_UPDATE,
    OUTPUT_SESSION_EFFECTS_UPDATE
};

class BpAudioPolicyServiceClient : public BpInterface<IAudioPolicyServiceClient>
{
public:
    BpAudioPolicyServiceClient(const sp<IBinder>& impl)
        : BpInterface<IAudioPolicyServiceClient>(impl)
    {
    }

    void onAudioPortListUpdate()
    {
        Parcel data, reply;
        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
        remote()->transact(PORT_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
    }

    void onAudioPatchListUpdate()
    {
        Parcel data, reply;
        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
        remote()->transact(PATCH_LIST_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
    }

    void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state)
    {
        Parcel data, reply;
        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
        data.writeString8(regId);
        data.writeInt32(state);
        remote()->transact(MIX_STATE_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
    }

    void onOutputSessionEffectsUpdate(audio_stream_type_t stream,
                                      audio_unique_id_t sessionId, bool added)
    {
        Parcel data, reply;
        data.writeInterfaceToken(IAudioPolicyServiceClient::getInterfaceDescriptor());
        data.writeInt32(stream);
        data.writeInt32(sessionId);
        data.writeInt32(added ? 1 : 0);
        remote()->transact(OUTPUT_SESSION_EFFECTS_UPDATE, data, &reply, IBinder::FLAG_ONEWAY);
    }
};

IMPLEMENT_META_INTERFACE(AudioPolicyServiceClient, "android.media.IAudioPolicyServiceClient");

// ----------------------------------------------------------------------

status_t BnAudioPolicyServiceClient::onTransact(
    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
    switch (code) {
    case PORT_LIST_UPDATE: {
            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
            onAudioPortListUpdate();
            return NO_ERROR;
        } break;
    case PATCH_LIST_UPDATE: {
            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
            onAudioPatchListUpdate();
            return NO_ERROR;
        } break;
    case MIX_STATE_UPDATE: {
            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
            String8 regId = data.readString8();
            int32_t state = data.readInt32();
            onDynamicPolicyMixStateUpdate(regId, state);
            return NO_ERROR;
    }
    case OUTPUT_SESSION_EFFECTS_UPDATE: {
            CHECK_INTERFACE(IAudioPolicyServiceClient, data, reply);
            audio_stream_type_t stream = static_cast<audio_stream_type_t>(data.readInt32());
            audio_unique_id_t sessionId = static_cast<audio_unique_id_t>(data.readInt32());
            bool added = data.readInt32() > 0;
            onOutputSessionEffectsUpdate(stream, sessionId, added);
            return NO_ERROR;
    }
    default:
        return BBinder::onTransact(code, data, reply, flags);
    }
}

// ----------------------------------------------------------------------------

} // namespace android