110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
/*
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* Copyright (C) 2014 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 ANDROID_AUDIO_POLICY_H
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#define ANDROID_AUDIO_POLICY_H
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#include <system/audio.h>
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#include <system/audio_policy.h>
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#include <binder/Parcel.h>
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#include <utils/String8.h>
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#include <utils/Vector.h>
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#include <media/AudioSession.h>
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namespace android {
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// Keep in sync with AudioMix.java, AudioMixingRule.java, AudioPolicyConfig.java
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#define RULE_EXCLUSION_MASK 0x8000
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#define RULE_MATCH_ATTRIBUTE_USAGE 0x1
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#define RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET (0x1 << 1)
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#define RULE_MATCH_UID (0x1 << 2)
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#define RULE_EXCLUDE_ATTRIBUTE_USAGE (RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_USAGE)
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#define RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET \
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(RULE_EXCLUSION_MASK|RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET)
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#define RULE_EXCLUDE_UID (RULE_EXCLUSION_MASK|RULE_MATCH_UID)
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#define MIX_TYPE_INVALID -1
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#define MIX_TYPE_PLAYERS 0
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#define MIX_TYPE_RECORDERS 1
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// definition of the different events that can be reported on a dynamic policy from
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// AudioSystem's implementation of the AudioPolicyClient interface
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// keep in sync with AudioSystem.java
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#define DYNAMIC_POLICY_EVENT_MIX_STATE_UPDATE 0
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#define AUDIO_OUTPUT_SESSION_EFFECTS_UPDATE 10
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#define MIX_STATE_DISABLED -1
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#define MIX_STATE_IDLE 0
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#define MIX_STATE_MIXING 1
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#define MIX_ROUTE_FLAG_RENDER 0x1
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#define MIX_ROUTE_FLAG_LOOP_BACK (0x1 << 1)
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#define MIX_ROUTE_FLAG_ALL (MIX_ROUTE_FLAG_RENDER | MIX_ROUTE_FLAG_LOOP_BACK)
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#define MAX_MIXES_PER_POLICY 10
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#define MAX_CRITERIA_PER_MIX 20
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class AudioMixMatchCriterion {
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public:
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AudioMixMatchCriterion() {}
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AudioMixMatchCriterion(audio_usage_t usage, audio_source_t source, uint32_t rule);
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status_t readFromParcel(Parcel *parcel);
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status_t writeToParcel(Parcel *parcel) const;
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union {
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audio_usage_t mUsage;
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audio_source_t mSource;
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uid_t mUid;
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} mValue;
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uint32_t mRule;
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};
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class AudioMix {
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public:
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// flag on an AudioMix indicating the activity on this mix (IDLE, MIXING)
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// must be reported through the AudioPolicyClient interface
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static const uint32_t kCbFlagNotifyActivity = 0x1;
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AudioMix() {}
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AudioMix(Vector<AudioMixMatchCriterion> criteria, uint32_t mixType, audio_config_t format,
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uint32_t routeFlags, String8 registrationId, uint32_t flags) :
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mCriteria(criteria), mMixType(mixType), mFormat(format),
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mRouteFlags(routeFlags), mDeviceAddress(registrationId), mCbFlags(flags){}
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status_t readFromParcel(Parcel *parcel);
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status_t writeToParcel(Parcel *parcel) const;
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Vector<AudioMixMatchCriterion> mCriteria;
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uint32_t mMixType;
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audio_config_t mFormat;
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uint32_t mRouteFlags;
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audio_devices_t mDeviceType;
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String8 mDeviceAddress;
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uint32_t mCbFlags; // flags indicating which callbacks to use, see kCbFlag*
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};
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// definitions for audio recording configuration updates
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// which update type is reported
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#define RECORD_CONFIG_EVENT_NONE -1
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#define RECORD_CONFIG_EVENT_START 1
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#define RECORD_CONFIG_EVENT_STOP 0
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}; // namespace android
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#endif // ANDROID_AUDIO_POLICY_H
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