1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//
18// Interface to the A2DP AAC Encoder
19//
20
21#ifndef A2DP_AAC_ENCODER_H
22#define A2DP_AAC_ENCODER_H
23
24#include "a2dp_codec_api.h"
25#include "osi/include/time.h"
26
27// Loads the A2DP AAC encoder.
28// Return true on success, otherwise false.
29bool A2DP_LoadEncoderAac(void);
30
31// Unloads the A2DP AAC encoder.
32void A2DP_UnloadEncoderAac(void);
33
34// Initialize the A2DP AAC encoder.
35// |p_peer_params| contains the A2DP peer information
36// The current A2DP codec config is in |a2dp_codec_config|.
37// |read_callback| is the callback for reading the input audio data.
38// |enqueue_callback| is the callback for enqueueing the encoded audio data.
39void a2dp_aac_encoder_init(const tA2DP_ENCODER_INIT_PEER_PARAMS* p_peer_params,
40                           A2dpCodecConfig* a2dp_codec_config,
41                           a2dp_source_read_callback_t read_callback,
42                           a2dp_source_enqueue_callback_t enqueue_callback);
43
44// Cleanup the A2DP AAC encoder.
45void a2dp_aac_encoder_cleanup(void);
46
47// Reset the feeding for the A2DP AAC encoder.
48void a2dp_aac_feeding_reset(void);
49
50// Flush the feeding for the A2DP AAC encoder.
51void a2dp_aac_feeding_flush(void);
52
53// Get the A2DP AAC encoder interval (in milliseconds).
54period_ms_t a2dp_aac_get_encoder_interval_ms(void);
55
56// Prepare and send A2DP AAC encoded frames.
57// |timestamp_us| is the current timestamp (in microseconds).
58void a2dp_aac_send_frames(uint64_t timestamp_us);
59
60#endif  // A2DP_AAC_ENCODER_H
61