24fc2fb1c5
Change-Id: Ibc637918637329e4f2b62f4ac7781102fbc269f5 Signed-off-by: Dima Zavin <dima@android.com>
73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* Copyright (C) 2008-2011 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_AUDIOPARAMETER_H_
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#define ANDROID_AUDIOPARAMETER_H_
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/String8.h>
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namespace android {
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class AudioParameter {
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public:
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AudioParameter() {}
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AudioParameter(const String8& keyValuePairs);
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virtual ~AudioParameter();
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// reserved parameter keys for changing standard parameters with setParameters() function.
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// Using these keys is mandatory for AudioFlinger to properly monitor audio output/input
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// configuration changes and act accordingly.
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// keyRouting: to change audio routing, value is an int in audio_devices_t
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// keySamplingRate: to change sampling rate routing, value is an int
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// keyFormat: to change audio format, value is an int in audio_format_t
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// keyChannels: to change audio channel configuration, value is an int in audio_channels_t
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// keyFrameCount: to change audio output frame count, value is an int
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// keyInputSource: to change audio input source, value is an int in audio_source_t
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// (defined in media/mediarecorder.h)
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static const char *keyRouting;
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static const char *keySamplingRate;
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static const char *keyFormat;
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static const char *keyChannels;
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static const char *keyFrameCount;
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static const char *keyInputSource;
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String8 toString();
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status_t add(const String8& key, const String8& value);
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status_t addInt(const String8& key, const int value);
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status_t addFloat(const String8& key, const float value);
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status_t remove(const String8& key);
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status_t get(const String8& key, String8& value);
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status_t getInt(const String8& key, int& value);
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status_t getFloat(const String8& key, float& value);
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status_t getAt(size_t index, String8& key, String8& value);
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size_t size() { return mParameters.size(); }
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private:
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String8 mKeyValuePairs;
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KeyedVector <String8, String8> mParameters;
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};
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}; // namespace android
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#endif /*ANDROID_AUDIOPARAMETER_H_*/
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