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1 /******************************************************************************
2  *
3  *  Copyright 2009-2012 Broadcom Corporation
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #ifndef BTIF_AV_CO_H
20 #define BTIF_AV_CO_H
21 
22 #include "btif/include/btif_a2dp_source.h"
23 #include "stack/include/a2dp_codec_api.h"
24 
25 // Sets the active peer to |peer_addr|.
26 // Returns true on success, otherwise false.
27 bool bta_av_co_set_active_peer(const RawAddress& peer_addr);
28 
29 // Gets the A2DP peer parameters that are used to initialize the encoder.
30 // The peer address is |peer_addr|.
31 // The parameters are stored in |p_peer_params|.
32 // |p_peer_params| cannot be null.
33 void bta_av_co_get_peer_params(const RawAddress& peer_addr,
34                                tA2DP_ENCODER_INIT_PEER_PARAMS* p_peer_params);
35 
36 // Gets the current A2DP encoder interface that can be used to encode and
37 // prepare A2DP packets for transmission - see |tA2DP_ENCODER_INTERFACE|.
38 // Returns the A2DP encoder interface if the current codec is setup,
39 // otherwise NULL.
40 const tA2DP_ENCODER_INTERFACE* bta_av_co_get_encoder_interface(void);
41 
42 // Gets the current A2DP decoder interface that can be used to decode received
43 // A2DP packets - see |tA2DP_DECODER_INTERFACE|.
44 // Returns the A2DP decoder interface if the current codec is setup, otherwise
45 // NULL.
46 const tA2DP_DECODER_INTERFACE* bta_av_co_get_decoder_interface(void);
47 
48 // Sets the user preferred codec configuration.
49 // The peer address is |peer_addr|.
50 // |codec_user_config| contains the preferred codec configuration.
51 // Returns true on success, otherwise false.
52 bool bta_av_co_set_codec_user_config(
53     const RawAddress& peer_addr,
54     const btav_a2dp_codec_config_t& codec_user_config);
55 
56 // Sets the Audio HAL selected audio feeding parameters.
57 // Those parameters are applied only to the currently selected codec.
58 // |codec_audio_config| contains the selected audio feeding configuration.
59 // Returns true on success, otherwise false.
60 bool bta_av_co_set_codec_audio_config(
61     const btav_a2dp_codec_config_t& codec_audio_config);
62 
63 // Initializes the control block.
64 // |codec_priorities| contains the A2DP Source codec priorities to use.
65 void bta_av_co_init(
66     const std::vector<btav_a2dp_codec_config_t>& codec_priorities);
67 
68 // Checks whether the codec for |codec_index| is supported.
69 // Returns true if the codec is supported, otherwise false.
70 bool bta_av_co_is_supported_codec(btav_a2dp_codec_index_t codec_index);
71 
72 // Gets the current A2DP codec for the active peer.
73 // Returns a pointer to the current |A2dpCodecConfig| if valid, otherwise
74 // nullptr.
75 A2dpCodecConfig* bta_av_get_a2dp_current_codec(void);
76 
77 // Gets the current A2DP codec for a peer identified by |peer_address|.
78 // Returns a pointer to the current |A2dpCodecConfig| if valid, otherwise
79 // nullptr.
80 A2dpCodecConfig* bta_av_get_a2dp_peer_current_codec(
81     const RawAddress& peer_address);
82 
83 // Dump A2DP codec debug-related information for the A2DP module.
84 // |fd| is the file descriptor to use for writing the ASCII formatted
85 // information.
86 void btif_a2dp_codec_debug_dump(int fd);
87 
88 #endif  // BTIF_AV_CO_H
89