71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
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/*
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* Copyright (C) 2009 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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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Timers.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <hardware_legacy/AudioPolicyManagerBase.h>
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namespace android {
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// ----------------------------------------------------------------------------
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#define MAX_DEVICE_ADDRESS_LEN 20
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// Attenuation applied to STRATEGY_SONIFICATION streams when a headset is connected: 6dB
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#define SONIFICATION_HEADSET_VOLUME_FACTOR 0.5
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// Min volume for STRATEGY_SONIFICATION streams when limited by music volume: -36dB
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#define SONIFICATION_HEADSET_VOLUME_MIN 0.016
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// Time in seconds during which we consider that music is still active after a music
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// track was stopped - see computeVolume()
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#define SONIFICATION_HEADSET_MUSIC_DELAY 5
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class AudioPolicyManagerALSA: public AudioPolicyManagerBase
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{
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public:
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AudioPolicyManagerALSA(AudioPolicyClientInterface *clientInterface);
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virtual ~AudioPolicyManagerALSA();
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status_t setDeviceConnectionState(AudioSystem::audio_devices device,
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AudioSystem::device_connection_state state,
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const char *device_address);
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uint32_t getDeviceForStrategy(routing_strategy strategy, bool fromCache = true);
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#ifdef HAS_FM_RADIO
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/* get Fm input source */
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audio_io_handle_t getFMInput(int inputSource,
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uint32_t samplingRate,
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uint32_t format,
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uint32_t channels,
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AudioSystem::audio_in_acoustics acoustics);
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#endif
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/* AudioPolicyManagerBase.cpp, in the stopoutoutput, setOutputDevice
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* is called by force(with flag true) which is causing Core is not going
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* to off/ret when A2DP is paused, Because output stream is activated
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* during the A2DP pause (opens PCM stream).
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* So we are overriding the stopOutput in Alsa vesrion of policy manger
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* now setOutputDevice is called with flag false.
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* */
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status_t stopOutput(audio_io_handle_t output, AudioSystem::stream_type stream);
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#ifdef HAS_FM_RADIO
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audio_io_handle_t mfmInput; // FM input handler
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#endif
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};
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};
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