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/******************************************************************************
*
* Copyright (C) 2003-2012 Broadcom Corporation
*
* 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.
*
******************************************************************************/
/******************************************************************************
*
* This is the interface file for advanced audio call-out functions.
*
******************************************************************************/
#ifndef BTA_AV_CO_H
#define BTA_AV_CO_H
#include "bta_av_api.h"
#include "l2c_api.h"
/*****************************************************************************
* Constants and data types
****************************************************************************/
/*******************************************************************************
*
* Function bta_av_co_audio_init
*
* Description This callout function is executed by AV when it is
* started by calling BTA_AvEnable(). This function can be
* used by the phone to initialize audio paths or for other
* initialization purposes.
*
*
* Returns Stream codec and content protection capabilities info.
*
******************************************************************************/
bool bta_av_co_audio_init(btav_a2dp_codec_index_t codec_index,
tAVDT_CFG* p_cfg);
/*******************************************************************************
*
* Function bta_av_co_audio_disc_res
*
* Description This callout function is executed by AV to report the
* number of stream end points (SEP) were found during the
* AVDT stream discovery process.
*
*
* Returns void.
*
******************************************************************************/
void bta_av_co_audio_disc_res(tBTA_AV_HNDL hndl, uint8_t num_seps,
uint8_t num_snk, uint8_t num_src, BD_ADDR addr,
uint16_t uuid_local);
/*******************************************************************************
*
* Function bta_av_co_audio_getconfig
*
* Description This callout function is executed by AV to retrieve the
* desired codec and content protection configuration for the
* audio stream.
*
*
* Returns Stream codec and content protection configuration info.
*
******************************************************************************/
tA2DP_STATUS bta_av_co_audio_getconfig(tBTA_AV_HNDL hndl, uint8_t* p_codec_info,
uint8_t* p_sep_info_idx, uint8_t seid,
uint8_t* p_num_protect,
uint8_t* p_protect_info);
/*******************************************************************************
*
* Function bta_av_co_audio_setconfig
*
* Description This callout function is executed by AV to set the
* codec and content protection configuration of the audio
* stream.
*
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_setconfig(tBTA_AV_HNDL hndl, const uint8_t* p_codec_info,
uint8_t seid, BD_ADDR addr, uint8_t num_protect,
const uint8_t* p_protect_info,
uint8_t t_local_sep, uint8_t avdt_handle);
/*******************************************************************************
*
* Function bta_av_co_audio_open
*
* Description This function is called by AV when the audio stream
* connection is opened.
* BTA-AV maintains the MTU of A2DP streams.
* If this is the 2nd audio stream, mtu is the smaller of the 2
* streams.
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_open(tBTA_AV_HNDL hndl, uint16_t mtu);
/*******************************************************************************
*
* Function bta_av_co_audio_close
*
* Description This function is called by AV when the audio stream
* connection is closed.
* BTA-AV maintains the MTU of A2DP streams.
* When one stream is closed and no other audio stream is open,
* mtu is reported as 0.
* Otherwise, the MTU remains open is reported.
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_close(tBTA_AV_HNDL hndl);
/*******************************************************************************
*
* Function bta_av_co_audio_start
*
* Description This function is called by AV when the audio streaming data
* transfer is started.
*
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_start(tBTA_AV_HNDL hndl, uint8_t* p_codec_info,
bool* p_no_rtp_hdr);
/*******************************************************************************
*
* Function bta_av_co_audio_stop
*
* Description This function is called by AV when the audio streaming data
* transfer is stopped.
*
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_stop(tBTA_AV_HNDL hndl);
/*******************************************************************************
*
* Function bta_av_co_audio_src_data_path
*
* Description This function is called to get the next data buffer from
* the audio codec
*
* Returns NULL if data is not ready.
* Otherwise, a buffer (BT_HDR*) containing the audio data.
*
******************************************************************************/
void* bta_av_co_audio_src_data_path(const uint8_t* p_codec_info,
uint32_t* p_timestamp);
/*******************************************************************************
*
* Function bta_av_co_audio_drop
*
* Description An Audio packet is dropped. .
* It's very likely that the connected headset with this handle
* is moved far away. The implementation may want to reduce
* the encoder bit rate setting to reduce the packet size.
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_drop(tBTA_AV_HNDL hndl);
/*******************************************************************************
*
* Function bta_av_co_audio_delay
*
* Description This function is called by AV when the audio stream
* connection needs to send the initial delay report to the
* connected SRC.
*
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_delay(tBTA_AV_HNDL hndl, uint16_t delay);
/*******************************************************************************
*
* Function bta_av_co_audio_update_mtu
*
* Description This function is called by AV when the audio stream
* connection MTU needs to be updated.
* BTA-AV maintains the MTU of A2DP streams.
* If this is the 2nd audio stream, mtu is the smaller of the 2
* streams.
*
* Returns void
*
******************************************************************************/
void bta_av_co_audio_update_mtu(tBTA_AV_HNDL hndl, uint16_t mtu);
#endif /* BTA_AV_CO_H */