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OVMS3-idf/components/bt/bluedroid/bta/include/bta/bta_av_co.h
wangmengyang e9e3bc492b component/bt: bugfix that A2DP sink device can be connected by another A2DP sink device 
In pevious implementation, A2DP sink will register an A2DP source Stream End Point(SEP) although the SEP is not\
supposed to be used. Now remove the unused SEP for source so that only one role of A2DP can be supported at one
time. Service record in local SDP server only includes at most one service for A2DP sink role or source
2018-09-10 03:35:58 +00:00

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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/video call-out functions.
*
******************************************************************************/
#ifndef BTA_AV_CO_H
#define BTA_AV_CO_H
#include "stack/l2c_api.h"
#include "bta/bta_av_api.h"
#if (BTA_AV_INCLUDED == TRUE)
/*****************************************************************************
** Constants and data types
*****************************************************************************/
/* TRUE to use SCMS-T content protection */
#ifndef BTA_AV_CO_CP_SCMS_T
#define BTA_AV_CO_CP_SCMS_T FALSE
#endif
/* the content protection IDs assigned by BT SIG */
#define BTA_AV_CP_SCMS_T_ID 0x0002
#define BTA_AV_CP_DTCP_ID 0x0001
#define BTA_AV_CP_LOSC 2
#define BTA_AV_CP_INFO_LEN 3
#define BTA_AV_CP_SCMS_COPY_MASK 3
#define BTA_AV_CP_SCMS_COPY_FREE 2
#define BTA_AV_CP_SCMS_COPY_ONCE 1
#define BTA_AV_CP_SCMS_COPY_NEVER 0
#define BTA_AV_CO_DEFAULT_AUDIO_OFFSET AVDT_MEDIA_OFFSET
enum {
BTA_AV_CO_ST_INIT,
BTA_AV_CO_ST_IN,
BTA_AV_CO_ST_OUT,
BTA_AV_CO_ST_OPEN,
BTA_AV_CO_ST_STREAM
};
/* data type for the Audio Codec Information*/
typedef struct {
UINT16 bit_rate; /* SBC encoder bit rate in kbps */
UINT16 bit_rate_busy; /* SBC encoder bit rate in kbps */
UINT16 bit_rate_swampd;/* SBC encoder bit rate in kbps */
UINT8 busy_level; /* Busy level indicating the bit-rate to be used */
UINT8 codec_info[AVDT_CODEC_SIZE];
UINT8 codec_type; /* Codec type */
} tBTA_AV_AUDIO_CODEC_INFO;
/*******************************************************************************
**
** 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.
**
*******************************************************************************/
extern BOOLEAN bta_av_co_audio_init(UINT8 *p_codec_type, UINT8 *p_codec_info,
UINT8 *p_num_protect, UINT8 *p_protect_info, UINT8 tsep);
/*******************************************************************************
**
** 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.
**
*******************************************************************************/
extern void bta_av_co_audio_disc_res(tBTA_AV_HNDL hndl, UINT8 num_seps,
UINT8 num_snk, UINT8 num_src, BD_ADDR addr, UINT16 uuid_local);
/*******************************************************************************
**
** Function bta_av_co_video_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.
**
*******************************************************************************/
extern void bta_av_co_video_disc_res(tBTA_AV_HNDL hndl, UINT8 num_seps,
UINT8 num_snk, BD_ADDR addr);
/*******************************************************************************
**
** 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.
**
*******************************************************************************/
extern UINT8 bta_av_co_audio_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid,
UINT8 *p_num_protect, UINT8 *p_protect_info);
/*******************************************************************************
**
** Function bta_av_co_video_getconfig
**
** Description This callout function is executed by AV to retrieve the
** desired codec and content protection configuration for the
** video stream.
**
**
** Returns Stream codec and content protection configuration info.
**
*******************************************************************************/
extern UINT8 bta_av_co_video_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid,
UINT8 *p_num_protect, UINT8 *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
**
*******************************************************************************/
extern void bta_av_co_audio_setconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr,
UINT8 num_protect, UINT8 *p_protect_info, UINT8 t_local_sep, UINT8 avdt_handle);
/*******************************************************************************
**
** Function bta_av_co_video_setconfig
**
** Description This callout function is executed by AV to set the
** codec and content protection configuration of the video stream.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_setconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr,
UINT8 num_protect, UINT8 *p_protect_info);
/*******************************************************************************
**
** 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
**
*******************************************************************************/
extern void bta_av_co_audio_open(tBTA_AV_HNDL hndl,
tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
UINT16 mtu);
/*******************************************************************************
**
** Function bta_av_co_video_open
**
** Description This function is called by AV when the video stream connection
** is opened.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_open(tBTA_AV_HNDL hndl,
tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
UINT16 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
**
*******************************************************************************/
extern void bta_av_co_audio_close(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT16 mtu);
/*******************************************************************************
**
** Function bta_av_co_video_close
**
** Description This function is called by AV when the video stream connection
** is closed.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_close(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT16 mtu);
/*******************************************************************************
**
** Function bta_av_co_audio_start
**
** Description This function is called by AV when the audio streaming data
** transfer is started.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_audio_start(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, BOOLEAN *p_no_rtp_hdr);
/*******************************************************************************
**
** Function bta_av_co_video_start
**
** Description This function is called by AV when the video streaming data
** transfer is started.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_start(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
UINT8 *p_codec_info, BOOLEAN *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
**
*******************************************************************************/
extern void bta_av_co_audio_stop(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type);
/*******************************************************************************
**
** Function bta_av_co_video_stop
**
** Description This function is called by AV when the video streaming data
** transfer is stopped.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_stop(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type);
/*******************************************************************************
**
** 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.
**
*******************************************************************************/
extern void *bta_av_co_audio_src_data_path(tBTA_AV_CODEC codec_type,
UINT32 *p_len, UINT32 *p_timestamp);
/*******************************************************************************
**
** Function bta_av_co_video_src_data_path
**
** Description This function is called to get the next data buffer from
** the video codec.
**
** Returns NULL if data is not ready.
** Otherwise, a video data buffer (UINT8*).
**
*******************************************************************************/
extern void *bta_av_co_video_src_data_path(tBTA_AV_CODEC codec_type,
UINT32 *p_len, UINT32 *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
**
*******************************************************************************/
extern void bta_av_co_audio_drop(tBTA_AV_HNDL hndl);
/*******************************************************************************
**
** Function bta_av_co_video_report_conn
**
** Description This function is called by AV when the reporting channel is
** opened (open=TRUE) or closed (open=FALSE).
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_report_conn (BOOLEAN open, UINT8 avdt_handle);
/*******************************************************************************
**
** Function bta_av_co_video_report_rr
**
** Description This function is called by AV when a Receiver Report is
** received
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_report_rr (UINT32 packet_lost);
/*******************************************************************************
**
** 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
**
*******************************************************************************/
extern void bta_av_co_audio_delay(tBTA_AV_HNDL hndl, UINT16 delay);
/*******************************************************************************
**
** Function bta_av_co_video_delay
**
** Description This function is called by AV when the video stream connection
** needs to send the initial delay report to the connected SRC.
**
**
** Returns void
**
*******************************************************************************/
extern void bta_av_co_video_delay(tBTA_AV_HNDL hndl, UINT16 delay);
#endif ///BTA_AV_INCLUDED == TRUE
#endif /* BTA_AV_CO_H */
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