btstack/example/le_audio_demo_util_sink.h
2023-12-11 16:33:52 +01:00

115 lines
4.0 KiB
C

/*
* Copyright (C) 2023 BlueKitchen GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* @brief Send/receive isochronous audio, used by le_audio_* demos
*/
#ifndef LE_AUDIO_DEMO_UTIL_SINK_H
#define LE_AUDIO_DEMO_UTIL_SINK_H
#include <stdint.h>
#include "bluetooth.h"
#include "btstack_bool.h"
#include "btstack_lc3.h"
#if defined __cplusplus
extern "C" {
#endif
/**
* @brief Init sink functionality
* @param filename_wav
*/
void le_audio_demo_util_sink_init(const char * filename_wav);
/**
* @brief Enable LC3plus if available for 10 ms frame duration
* @param enable
*/
void le_audio_demo_util_sink_enable_lc3plus(bool enable);
/**
* @brief Configure unicast sink
* Supported num_streams x num_channels_per_stream configurations: 1 x 1, 1 x 2, 2 x 1
* @param num_streams
* @param num_channels_per_stream
* @param sampling_frequency_hz
* @param frame_duration
* @param octets_per_frame
* @param iso_interval_1250us
* @param flush_timeout
*/
void le_audio_demo_util_sink_configure_unicast(uint8_t num_streams, uint8_t num_channels_per_stream, uint32_t sampling_frequency_hz,
btstack_lc3_frame_duration_t frame_duration, uint16_t octets_per_frame,
uint32_t iso_interval_1250us, uint8_t flush_timeout);
/**
* @brief Configure broadcast sink
* Supported num_streams x num_channels_per_stream configurations: 1 x 1, 1 x 2, 2 x 1
* @param num_streams
* @param num_channels_per_stream
* @param sampling_frequency_hz
* @param frame_duration
* @param octets_per_frame
* @param iso_interval_1250us
* @param pre_transmission_offset
*/
void le_audio_demo_util_sink_configure_broadcast(uint8_t num_streams, uint8_t num_channels_per_stream, uint32_t sampling_frequency_hz,
btstack_lc3_frame_duration_t frame_duration, uint16_t octets_per_frame,
uint32_t iso_interval_1250us, uint8_t pre_transmission_offset);
/**
* @brief Process ISO packet
* @param stream_index
* @param packet
* @param size
*/
void le_audio_demo_util_sink_receive(uint8_t stream_index, uint8_t *packet, uint16_t size);
/**
* @brief Analyze counting ISO packets
* @param stream_index
* @param packet
* @param size
*/
void le_audio_demo_util_sink_count(uint8_t stream_index, uint8_t *packet, uint16_t size);
/**
* @brief Close sink: close wav file, stop playbacl
*/
void le_audio_demo_util_sink_close(void);
#if defined __cplusplus
}
#endif
#endif // LE_AUDIO_DEMO_UTIL_SINK_H