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68 lines
2.1 KiB
68 lines
2.1 KiB
/* |
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* Copyright (C) 2015 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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/** |
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* Implements an API to be used by A2DP to do streaming of music over a media |
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* stream. This API provides mechanism to create and control playback of the |
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* media stream depending on the data bits coming from the remote device. The |
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* media stream is played over the default audio media stream type and hence |
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* volume control is handled entirely by the Audio Manager (which is also the |
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* original motivation for this solution. |
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* |
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* TODO: Once the AudioManager provides support for patching audio sources with |
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* volume control we should deprecate this file. |
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*/ |
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/** |
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* Creates an audio track object and returns a void handle. Use this handle to |
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* the |
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* following functions. |
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* |
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* The ownership of the handle is maintained by the caller of this API and it |
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* should eventually be |
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* deleted using BtifAvrcpAudioTrackDelete (see below). |
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*/ |
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void* BtifAvrcpAudioTrackCreate(int trackFreq, int channelType); |
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/** |
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* Starts the audio track. |
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*/ |
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void BtifAvrcpAudioTrackStart(void* handle); |
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/** |
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* Pauses the audio track. |
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*/ |
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void BtifAvrcpAudioTrackPause(void* handle); |
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/** |
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* Sets audio track gain. |
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*/ |
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void BtifAvrcpSetAudioTrackGain(void* handle, float gain); |
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/** |
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* Stop / Delete the audio track. |
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* Delete should usually be called stop. |
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*/ |
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void BtifAvrcpAudioTrackStop(void* handle); |
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void BtifAvrcpAudioTrackDelete(void* handle); |
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/** |
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* Writes the audio track data to file. |
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* |
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* Used only for debugging. |
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*/ |
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int BtifAvrcpAudioTrackWriteData(void* handle, void* audioBuffer, |
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int bufferlen);
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