You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.1 KiB
62 lines
2.1 KiB
/*
|
|
* Copyright (C) 2016 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.
|
|
*/
|
|
|
|
#ifndef ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
|
|
#define ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
|
|
|
|
#include <system/audio.h>
|
|
#include <utils/Errors.h>
|
|
#include <utils/RefBase.h>
|
|
|
|
namespace android {
|
|
|
|
|
|
class MmapStreamCallback : public virtual RefBase {
|
|
public:
|
|
|
|
/**
|
|
* The mmap stream should be torn down because conditions that permitted its creation with
|
|
* the requested parameters have changed and do not allow it to operate with the requested
|
|
* constraints any more.
|
|
* \param[in] handle handle for the client stream to tear down.
|
|
*/
|
|
virtual void onTearDown(audio_port_handle_t handle) = 0;
|
|
|
|
/**
|
|
* The volume to be applied to the use case specified when opening the stream has changed
|
|
* \param[in] channels a channel mask containing all channels the volume should be applied to.
|
|
* \param[in] values the volume values to be applied to each channel. The size of the vector
|
|
* should correspond to the channel count retrieved with
|
|
* audio_channel_count_from_in_mask() or audio_channel_count_from_out_mask()
|
|
*/
|
|
virtual void onVolumeChanged(audio_channel_mask_t channels, Vector<float> values) = 0;
|
|
|
|
/**
|
|
* The device the stream is routed to/from has changed
|
|
* \param[in] onRoutingChanged the unique device ID of the new device.
|
|
*/
|
|
virtual void onRoutingChanged(audio_port_handle_t deviceId) = 0;
|
|
|
|
protected:
|
|
MmapStreamCallback() {}
|
|
virtual ~MmapStreamCallback() {}
|
|
};
|
|
|
|
|
|
} // namespace android
|
|
|
|
#endif // ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
|