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/******************************************************************************
*
* Copyright (C) 2016 The Android Open Source Project
* Copyright (C) 2009-2012 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.
*
******************************************************************************/
//
// Interface to the A2DP SBC Encoder
//
#ifndef A2DP_SBC_ENCODER_H
#define A2DP_SBC_ENCODER_H
#include "a2dp_codec_api.h"
#include "osi/include/time.h"
// Loads the A2DP SBC encoder.
// Return true on success, otherwise false.
bool A2DP_LoadEncoderSbc(void);
// Unloads the A2DP SBC encoder.
void A2DP_UnloadEncoderSbc(void);
// Initialize the A2DP SBC encoder.
// |p_peer_params| contains the A2DP peer information
// The current A2DP codec config is in |a2dp_codec_config|.
// |read_callback| is the callback for reading the input audio data.
// |enqueue_callback| is the callback for enqueueing the encoded audio data.
void a2dp_sbc_encoder_init(const tA2DP_ENCODER_INIT_PEER_PARAMS* p_peer_params,
A2dpCodecConfig* a2dp_codec_config,
a2dp_source_read_callback_t read_callback,
a2dp_source_enqueue_callback_t enqueue_callback);
// Cleanup the A2DP SBC encoder.
void a2dp_sbc_encoder_cleanup(void);
// Reset the feeding for the A2DP SBC encoder.
void a2dp_sbc_feeding_reset(void);
// Flush the feeding for the A2DP SBC encoder.
void a2dp_sbc_feeding_flush(void);
// Get the A2DP SBC encoder interval (in milliseconds).
period_ms_t a2dp_sbc_get_encoder_interval_ms(void);
// Prepare and send A2DP SBC encoded frames.
// |timestamp_us| is the current timestamp (in microseconds).
void a2dp_sbc_send_frames(uint64_t timestamp_us);
// Calculsate sbc bitrate for offload mode
// |a2dp_codec_config| is codec config
// |peer_edr| flag for peer supports edr
// Returns |uint16_t| calculated bitrare
uint16_t a2dp_sbc_calulate_offload_bitrate(A2dpCodecConfig* a2dp_codec_config,
bool peer_edr, const uint8_t* p_codec_info);
#endif // A2DP_SBC_ENCODER_H
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