xref: /Zephyr-latest/subsys/bluetooth/audio/codec.c

/*
 * Copyright (c) 2022 Bose Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
/** @file
 *  @brief Bluetooth LE-Audio codec LTV parsing
 *
 *  Helper functions to parse codec config data as specified in the Bluetooth assigned numbers for
 *  Generic Audio.
 */

#include <errno.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

#include <zephyr/autoconf.h>
#include <zephyr/bluetooth/audio/audio.h>
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/logging/log.h>
#include <zephyr/net_buf.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/sys/check.h>
#include <zephyr/sys/util.h>

LOG_MODULE_REGISTER(bt_audio_codec, CONFIG_BT_AUDIO_CODEC_LOG_LEVEL);

int bt_audio_codec_cfg_freq_to_freq_hz(enum bt_audio_codec_cfg_freq freq)
{
	switch (freq) {
	case BT_AUDIO_CODEC_CFG_FREQ_8KHZ:
		return 8000;
	case BT_AUDIO_CODEC_CFG_FREQ_11KHZ:
		return 11025;
	case BT_AUDIO_CODEC_CFG_FREQ_16KHZ:
		return 16000;
	case BT_AUDIO_CODEC_CFG_FREQ_22KHZ:
		return 22050;
	case BT_AUDIO_CODEC_CFG_FREQ_24KHZ:
		return 24000;
	case BT_AUDIO_CODEC_CFG_FREQ_32KHZ:
		return 32000;
	case BT_AUDIO_CODEC_CFG_FREQ_44KHZ:
		return 44100;
	case BT_AUDIO_CODEC_CFG_FREQ_48KHZ:
		return 48000;
	case BT_AUDIO_CODEC_CFG_FREQ_88KHZ:
		return 88200;
	case BT_AUDIO_CODEC_CFG_FREQ_96KHZ:
		return 96000;
	case BT_AUDIO_CODEC_CFG_FREQ_176KHZ:
		return 176400;
	case BT_AUDIO_CODEC_CFG_FREQ_192KHZ:
		return 192000;
	case BT_AUDIO_CODEC_CFG_FREQ_384KHZ:
		return 384000;
	default:
		return -EINVAL;
	}
}

int bt_audio_codec_cfg_freq_hz_to_freq(uint32_t freq_hz)
{
	switch (freq_hz) {
	case 8000U:
		return BT_AUDIO_CODEC_CFG_FREQ_8KHZ;
	case 11025U:
		return BT_AUDIO_CODEC_CFG_FREQ_11KHZ;
	case 16000U:
		return BT_AUDIO_CODEC_CFG_FREQ_16KHZ;
	case 22050U:
		return BT_AUDIO_CODEC_CFG_FREQ_22KHZ;
	case 24000U:
		return BT_AUDIO_CODEC_CFG_FREQ_24KHZ;
	case 32000U:
		return BT_AUDIO_CODEC_CFG_FREQ_32KHZ;
	case 44100U:
		return BT_AUDIO_CODEC_CFG_FREQ_44KHZ;
	case 48000U:
		return BT_AUDIO_CODEC_CFG_FREQ_48KHZ;
	case 88200U:
		return BT_AUDIO_CODEC_CFG_FREQ_88KHZ;
	case 96000U:
		return BT_AUDIO_CODEC_CFG_FREQ_96KHZ;
	case 176400U:
		return BT_AUDIO_CODEC_CFG_FREQ_176KHZ;
	case 192000U:
		return BT_AUDIO_CODEC_CFG_FREQ_192KHZ;
	case 384000U:
		return BT_AUDIO_CODEC_CFG_FREQ_384KHZ;
	default:
		return -EINVAL;
	}
}

int bt_audio_codec_cfg_frame_dur_to_frame_dur_us(enum bt_audio_codec_cfg_frame_dur frame_dur)
{
	switch (frame_dur) {
	case BT_AUDIO_CODEC_CFG_DURATION_7_5:
		return 7500;
	case BT_AUDIO_CODEC_CFG_DURATION_10:
		return 10000;
	default:
		return -EINVAL;
	}
}

int bt_audio_codec_cfg_frame_dur_us_to_frame_dur(uint32_t frame_dur_us)
{
	switch (frame_dur_us) {
	case 7500U:
		return BT_AUDIO_CODEC_CFG_DURATION_7_5;
	case 10000U:
		return BT_AUDIO_CODEC_CFG_DURATION_10;
	default:
		return -EINVAL;
	}
}

#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0 ||                                                 \
	CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 ||                                         \
	CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0 ||                                             \
	CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0

static int ltv_set_val(struct net_buf_simple *buf, uint8_t type, const uint8_t *data,
		       size_t data_len)
{
	size_t new_buf_len;

	for (uint16_t i = 0U; i < buf->len;) {
		uint8_t *len = &buf->data[i++];
		const uint8_t data_type = buf->data[i++];
		const uint8_t value_len = *len - sizeof(data_type);

		if (data_type == type) {
			uint8_t *value = &buf->data[i];

			if (data_len == value_len) {
				memcpy(value, data, data_len);
			} else {
				const int16_t diff = data_len - value_len;
				uint8_t *old_next_data_start;
				uint8_t *new_next_data_start;
				uint8_t data_len_to_move;

				/* Check if this is the last value in the buffer */
				if (value + value_len == buf->data + buf->len) {
					data_len_to_move = 0U;
				} else {
					old_next_data_start = value + value_len;
					new_next_data_start = value + data_len;
					data_len_to_move =
						buf->len - (old_next_data_start - buf->data);
				}

				if (diff < 0) {
					/* In this case we need to move memory around after the copy
					 * to fit the new shorter data
					 */

					memcpy(value, data, data_len);
					if (data_len_to_move > 0U) {
						memmove(new_next_data_start, old_next_data_start,
							data_len_to_move);
					}
				} else {
					/* In this case we need to move memory around before
					 * the copy to fit the new longer data
					 */
					if ((buf->len + diff) > buf->size) {
						LOG_DBG("Cannot fit data_len %zu in buf with len "
							"%u and size %u",
							data_len, buf->len, buf->size);
						return -ENOMEM;
					}

					if (data_len_to_move > 0) {
						memmove(new_next_data_start, old_next_data_start,
							data_len_to_move);
					}
					memcpy(value, data, data_len);
				}

				buf->len += diff;
				*len += diff;
			}

			return buf->len;
		}

		i += value_len;
	}

	/* If we reach here, we did not find the data in the buffer, so we simply add it */
	new_buf_len = buf->len + 1 /* len */ + sizeof(type) + data_len;
	if (new_buf_len <= buf->size) {
		net_buf_simple_add_u8(buf, data_len + sizeof(type)); /* len */
		net_buf_simple_add_u8(buf, type); /* type */
		if (data_len > 0) {
			net_buf_simple_add_mem(buf, data, data_len); /* value */
		}
	} else {
		LOG_DBG("Cannot fit data_len %zu in codec_cfg with len %u and size %u", data_len,
			buf->len, buf->size);
		return -ENOMEM;
	}

	return buf->len;
}

static int ltv_unset_val(struct net_buf_simple *buf, uint8_t type)
{
	for (uint16_t i = 0U; i < buf->len;) {
		uint8_t *ltv_start = &buf->data[i];
		const uint8_t len = buf->data[i++];
		const uint8_t data_type = buf->data[i++];
		const uint8_t value_len = len - sizeof(data_type);

		if (data_type == type) {
			const uint8_t ltv_size = value_len + sizeof(data_type) + sizeof(len);
			uint8_t *value = &buf->data[i];

			/* Check if this is not the last value in the buffer */
			if (value + value_len != buf->data + buf->len) {
				uint8_t *next_data_start;
				uint8_t data_len_to_move;

				next_data_start = value + value_len;
				data_len_to_move = buf->len - (next_data_start - buf->data);
				memmove(ltv_start, next_data_start, data_len_to_move);

				LOG_ERR("buf->data %p, ltv_start %p, value_len %u next_data_start "
					"%p data_len_to_move %u",
					buf->data, ltv_start, value_len, next_data_start,
					data_len_to_move);
			} /* else just reduce the length of the buffer */

			buf->len -= ltv_size;

			return buf->len;
		}

		i += value_len;
	}

	return buf->len;
}
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0 ||                                           \
	* CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 ||                                       \
	* CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0 ||                                           \
	* CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0                                          \
	*/

#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0

static void init_net_buf_simple_from_codec_cfg(struct net_buf_simple *buf,
					       struct bt_audio_codec_cfg *codec_cfg)
{
	buf->__buf = codec_cfg->data;
	buf->data = codec_cfg->data;
	buf->size = sizeof(codec_cfg->data);
	buf->len = codec_cfg->data_len;
}

int bt_audio_codec_cfg_get_val(const struct bt_audio_codec_cfg *codec_cfg,
			       enum bt_audio_codec_cfg_type type, const uint8_t **data)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	return bt_audio_data_get_val(codec_cfg->data, codec_cfg->data_len, (uint8_t)type, data);
}

int bt_audio_codec_cfg_set_val(struct bt_audio_codec_cfg *codec_cfg,
			       enum bt_audio_codec_cfg_type type, const uint8_t *data,
			       size_t data_len)
{
	struct net_buf_simple buf;
	int ret;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	CHECKIF(data_len == 0U || data_len > UINT8_MAX) {
		LOG_DBG("Invalid data_len %zu", data_len);
		return -EINVAL;
	}

	init_net_buf_simple_from_codec_cfg(&buf, codec_cfg);

	ret = ltv_set_val(&buf, type, data, data_len);
	if (ret >= 0) {
		codec_cfg->data_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_unset_val(struct bt_audio_codec_cfg *codec_cfg,
				 enum bt_audio_codec_cfg_type type)
{
	struct net_buf_simple buf;
	int ret;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	init_net_buf_simple_from_codec_cfg(&buf, codec_cfg);

	ret = ltv_unset_val(&buf, type);
	if (ret >= 0) {
		codec_cfg->data_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_get_freq(const struct bt_audio_codec_cfg *codec_cfg)
{
	enum bt_audio_codec_cfg_freq freq;
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cfg_get_val(codec_cfg, BT_AUDIO_CODEC_CFG_FREQ, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	freq = data[0];
	if (bt_audio_codec_cfg_freq_to_freq_hz(freq) < 0) {
		LOG_DBG("Invalid freq value: 0x%02X", freq);
		return -EBADMSG;
	}

	return freq;
}

int bt_audio_codec_cfg_set_freq(struct bt_audio_codec_cfg *codec_cfg,
				enum bt_audio_codec_cfg_freq freq)
{
	uint8_t freq_u8;

	if (bt_audio_codec_cfg_freq_to_freq_hz(freq) < 0) {
		LOG_DBG("Invalid freq value: %d", freq);
		return -EINVAL;
	}

	freq_u8 = (uint8_t)freq;

	return bt_audio_codec_cfg_set_val(codec_cfg, BT_AUDIO_CODEC_CFG_FREQ, &freq_u8,
					  sizeof(freq_u8));
}

int bt_audio_codec_cfg_get_frame_dur(const struct bt_audio_codec_cfg *codec_cfg)
{
	enum bt_audio_codec_cfg_frame_dur frame_dur;
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cfg_get_val(codec_cfg, BT_AUDIO_CODEC_CFG_DURATION, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	frame_dur = data[0];
	if (bt_audio_codec_cfg_frame_dur_to_frame_dur_us(frame_dur) < 0) {
		LOG_DBG("Invalid frame_dur value: 0x%02X", frame_dur);
		return -EBADMSG;
	}

	return frame_dur;
}

int bt_audio_codec_cfg_set_frame_dur(struct bt_audio_codec_cfg *codec_cfg,
				     enum bt_audio_codec_cfg_frame_dur frame_dur)
{
	uint8_t frame_dur_u8;

	if (bt_audio_codec_cfg_frame_dur_to_frame_dur_us(frame_dur) < 0) {
		LOG_DBG("Invalid freq value: %d", frame_dur);
		return -EINVAL;
	}

	frame_dur_u8 = (uint8_t)frame_dur;

	return bt_audio_codec_cfg_set_val(codec_cfg, BT_AUDIO_CODEC_CFG_DURATION,
					  &frame_dur_u8, sizeof(frame_dur_u8));
}

int bt_audio_codec_cfg_get_chan_allocation(const struct bt_audio_codec_cfg *codec_cfg,
					   enum bt_audio_location *chan_allocation,
					   bool fallback_to_default)
{
	const uint8_t *data;
	uint8_t data_len;

	*chan_allocation = 0;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	CHECKIF(chan_allocation == NULL) {
		return -EINVAL;
	}

	data_len =
		bt_audio_codec_cfg_get_val(codec_cfg, BT_AUDIO_CODEC_CFG_CHAN_ALLOC, &data);
	if (data == NULL) {
		if (fallback_to_default && codec_cfg->id == BT_HCI_CODING_FORMAT_LC3) {
			*chan_allocation = BT_AUDIO_LOCATION_MONO_AUDIO;

			return 0;
		}

		return -ENODATA;
	}

	if (data_len != sizeof(uint32_t)) {
		return -EBADMSG;
	}

	*chan_allocation = sys_get_le32(data);

	return 0;
}

int bt_audio_codec_cfg_set_chan_allocation(struct bt_audio_codec_cfg *codec_cfg,
					   enum bt_audio_location chan_allocation)
{
	uint32_t chan_allocation_u32;

	if ((chan_allocation & BT_AUDIO_LOCATION_ANY) != chan_allocation) {
		LOG_DBG("Invalid chan_allocation value: 0x%08X", chan_allocation);
		return -EINVAL;
	}

	chan_allocation_u32 = sys_cpu_to_le32((uint32_t)chan_allocation);

	return bt_audio_codec_cfg_set_val(codec_cfg, BT_AUDIO_CODEC_CFG_CHAN_ALLOC,
					  (const uint8_t *)&chan_allocation_u32,
					  sizeof(chan_allocation_u32));
}

int bt_audio_codec_cfg_get_octets_per_frame(const struct bt_audio_codec_cfg *codec_cfg)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	data_len =
		bt_audio_codec_cfg_get_val(codec_cfg, BT_AUDIO_CODEC_CFG_FRAME_LEN, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint16_t)) {
		return -EBADMSG;
	}

	return sys_get_le16(data);
}

int bt_audio_codec_cfg_set_octets_per_frame(struct bt_audio_codec_cfg *codec_cfg,
					    uint16_t octets_per_frame)
{
	uint16_t octets_per_frame_le16;

	octets_per_frame_le16 = sys_cpu_to_le16(octets_per_frame);

	return bt_audio_codec_cfg_set_val(codec_cfg, BT_AUDIO_CODEC_CFG_FRAME_LEN,
					  (uint8_t *)&octets_per_frame_le16,
					  sizeof(octets_per_frame_le16));
}

int bt_audio_codec_cfg_get_frame_blocks_per_sdu(const struct bt_audio_codec_cfg *codec_cfg,
						bool fallback_to_default)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cfg_get_val(codec_cfg,
					      BT_AUDIO_CODEC_CFG_FRAME_BLKS_PER_SDU, &data);
	if (data == NULL) {
		if (fallback_to_default && codec_cfg->id == BT_HCI_CODING_FORMAT_LC3) {
			return 1;
		}

		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

int bt_audio_codec_cfg_set_frame_blocks_per_sdu(struct bt_audio_codec_cfg *codec_cfg,
						uint8_t frame_blocks)
{
	return bt_audio_codec_cfg_set_val(codec_cfg, BT_AUDIO_CODEC_CFG_FRAME_BLKS_PER_SDU,
					  &frame_blocks, sizeof(frame_blocks));
}
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0 */

#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 ||                                             \
	CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0

static void init_net_buf_simple_from_meta(struct net_buf_simple *buf, uint8_t meta[],
					  size_t meta_len, size_t meta_size)
{
	buf->__buf = meta;
	buf->data = meta;
	buf->size = meta_size;
	buf->len = meta_len;
}

static int codec_meta_get_val(const uint8_t meta[], size_t meta_len,
			      enum bt_audio_metadata_type type, const uint8_t **data)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	return bt_audio_data_get_val(meta, meta_len, (uint8_t)type, data);
}

static int codec_meta_set_val(uint8_t meta[], size_t meta_len, size_t meta_size,
			      enum bt_audio_metadata_type type, const uint8_t *data,
			      size_t data_len)
{
	struct net_buf_simple buf;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL && data_len != 0) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	CHECKIF(data_len > UINT8_MAX) {
		LOG_DBG("Invalid data_len %zu", data_len);
		return -EINVAL;
	}

	init_net_buf_simple_from_meta(&buf, meta, meta_len, meta_size);

	return ltv_set_val(&buf, (uint8_t)type, data, data_len);
}

static int codec_meta_unset_val(uint8_t meta[], size_t meta_len, size_t meta_size,
				enum bt_audio_metadata_type type)
{
	struct net_buf_simple buf;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	init_net_buf_simple_from_meta(&buf, meta, meta_len, meta_size);

	return ltv_unset_val(&buf, type);
}

static int codec_meta_get_pref_context(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_PREF_CONTEXT, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != sizeof(uint16_t)) {
		return -EBADMSG;
	}

	return sys_get_le16(data);
}

static int codec_meta_set_pref_context(uint8_t meta[], size_t meta_len, size_t meta_size,
				       enum bt_audio_context ctx)
{
	uint16_t ctx_le16;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	if ((ctx & BT_AUDIO_CONTEXT_TYPE_ANY) != ctx) {
		LOG_DBG("Invalid ctx value: %d", ctx);
		return -EINVAL;
	}

	ctx_le16 = sys_cpu_to_le16((uint16_t)ctx);

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_PREF_CONTEXT,
				  (const uint8_t *)&ctx_le16, sizeof(ctx_le16));
}

static int codec_meta_get_stream_context(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != sizeof(uint16_t)) {
		return -EBADMSG;
	}

	return sys_get_le16(data);
}

static int codec_meta_set_stream_context(uint8_t meta[], size_t meta_len, size_t meta_size,
					 enum bt_audio_context ctx)
{
	uint16_t ctx_le16;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	if ((ctx & BT_AUDIO_CONTEXT_TYPE_ANY) != ctx) {
		LOG_DBG("Invalid ctx value: %d", ctx);
		return -EINVAL;
	}

	ctx_le16 = sys_cpu_to_le16((uint16_t)ctx);

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT,
				  (const uint8_t *)&ctx_le16, sizeof(ctx_le16));
}

static int codec_meta_get_program_info(const uint8_t meta[], size_t meta_len,
				       const uint8_t **program_info)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(program_info == NULL) {
		LOG_DBG("program_info is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_PROGRAM_INFO, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*program_info = data;

	return ret;
}

static int codec_meta_set_program_info(uint8_t meta[], size_t meta_len, size_t meta_size,
				       const uint8_t *program_info, size_t program_info_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(program_info == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_PROGRAM_INFO,
				  program_info, program_info_len);
}

static int codec_meta_get_lang(const uint8_t meta[], size_t meta_len, const uint8_t **lang)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(lang == NULL) {
		LOG_DBG("lang is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_LANG, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != BT_AUDIO_LANG_SIZE) {
		return -EBADMSG;
	}

	*lang = data;

	return 0;
}

static int codec_meta_set_lang(uint8_t meta[], size_t meta_len, size_t meta_size,
			       const uint8_t lang[BT_AUDIO_LANG_SIZE])
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(lang == NULL) {
		LOG_DBG("lang is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_LANG, lang,
				  BT_AUDIO_LANG_SIZE);
}

static int codec_meta_get_ccid_list(const uint8_t meta[], size_t meta_len,
				    const uint8_t **ccid_list)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(ccid_list == NULL) {
		LOG_DBG("ccid_list is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_CCID_LIST, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*ccid_list = data;

	return ret;
}

static int codec_meta_set_ccid_list(uint8_t meta[], size_t meta_len, size_t meta_size,
				    const uint8_t *ccid_list, size_t ccid_list_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(ccid_list == NULL) {
		LOG_DBG("ccid_list is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_CCID_LIST,
				  ccid_list, ccid_list_len);
}

static int codec_meta_get_parental_rating(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_PARENTAL_RATING, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

static int codec_meta_set_parental_rating(uint8_t meta[], size_t meta_len, size_t meta_size,
					  enum bt_audio_parental_rating parental_rating)
{
	uint8_t parental_rating_u8;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	if (parental_rating > BT_AUDIO_PARENTAL_RATING_AGE_18_OR_ABOVE) {
		LOG_DBG("Invalid parental_rating value: %d", parental_rating);
		return -EINVAL;
	}

	parental_rating_u8 = (uint8_t)parental_rating;

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_PARENTAL_RATING,
				  &parental_rating_u8, sizeof(parental_rating_u8));
}

static int codec_meta_get_program_info_uri(const uint8_t meta[], size_t meta_len,
					   const uint8_t **program_info_uri)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(program_info_uri == NULL) {
		LOG_DBG("program_info_uri is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_PROGRAM_INFO_URI, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*program_info_uri = data;

	return ret;
}

static int codec_meta_set_program_info_uri(uint8_t meta[], size_t meta_len, size_t meta_size,
					   const uint8_t *program_info_uri,
					   size_t program_info_uri_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(program_info_uri == NULL) {
		LOG_DBG("program_info_uri is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size,
				  BT_AUDIO_METADATA_TYPE_PROGRAM_INFO_URI, program_info_uri,
				  program_info_uri_len);
}

static int codec_meta_get_audio_active_state(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_AUDIO_STATE, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

static int codec_meta_set_audio_active_state(uint8_t meta[], size_t meta_len, size_t meta_size,
					     enum bt_audio_active_state state)
{
	uint8_t state_u8;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	if (state != BT_AUDIO_ACTIVE_STATE_DISABLED && state != BT_AUDIO_ACTIVE_STATE_ENABLED) {
		LOG_DBG("Invalid state value: %d", state);
		return -EINVAL;
	}

	state_u8 = (uint8_t)state;

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_AUDIO_STATE,
				  &state_u8, sizeof(state_u8));
}

static int codec_meta_get_bcast_audio_immediate_rend_flag(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	return codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_BROADCAST_IMMEDIATE,
				  &data);
}

static int codec_meta_set_bcast_audio_immediate_rend_flag(uint8_t meta[], size_t meta_len,
							  size_t meta_size)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size,
				  BT_AUDIO_METADATA_TYPE_BROADCAST_IMMEDIATE, NULL, 0);
}

static int codec_meta_get_assisted_listening_stream(const uint8_t meta[], size_t meta_len)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_ASSISTED_LISTENING_STREAM,
				 &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (ret != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

static int codec_meta_set_assisted_listening_stream(uint8_t meta[], size_t meta_len,
						    size_t meta_size,
						    enum bt_audio_assisted_listening_stream val)
{
	uint8_t val_u8;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	if (val != BT_AUDIO_ASSISTED_LISTENING_STREAM_UNSPECIFIED) {
		LOG_DBG("Invalid value: %d", val);
		return -EINVAL;
	}

	val_u8 = (uint8_t)val;

	return codec_meta_set_val(meta, meta_len, meta_size,
				  BT_AUDIO_METADATA_TYPE_ASSISTED_LISTENING_STREAM, &val_u8,
				  sizeof(val_u8));
}

static int codec_meta_get_broadcast_name(const uint8_t meta[], size_t meta_len,
					 const uint8_t **broadcast_name)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(broadcast_name == NULL) {
		LOG_DBG("broadcast_name is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_BROADCAST_NAME, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*broadcast_name = data;

	return ret;
}

static int codec_meta_set_broadcast_name(uint8_t meta[], size_t meta_len, size_t meta_size,
					 const uint8_t *broadcast_name, size_t broadcast_name_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(broadcast_name == NULL) {
		LOG_DBG("broadcast_name is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_BROADCAST_NAME,
				  broadcast_name, broadcast_name_len);
}

static int codec_meta_get_extended(const uint8_t meta[], size_t meta_len,
				   const uint8_t **extended_meta)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(extended_meta == NULL) {
		LOG_DBG("extended_meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_EXTENDED, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*extended_meta = data;

	return ret;
}

static int codec_meta_set_extended(uint8_t meta[], size_t meta_len, size_t meta_size,
				   const uint8_t *extended, size_t extended_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(extended == NULL) {
		LOG_DBG("extended is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_EXTENDED,
				  extended, extended_len);
}

static int codec_meta_get_vendor(const uint8_t meta[], size_t meta_len, const uint8_t **vendor_meta)
{
	const uint8_t *data;
	int ret;

	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(vendor_meta == NULL) {
		LOG_DBG("vendor_meta is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_val(meta, meta_len, BT_AUDIO_METADATA_TYPE_VENDOR, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	*vendor_meta = data;

	return ret;
}

static int codec_meta_set_vendor(uint8_t meta[], size_t meta_len, size_t meta_size,
				 const uint8_t *vendor, size_t vendor_len)
{
	CHECKIF(meta == NULL) {
		LOG_DBG("meta is NULL");
		return -EINVAL;
	}

	CHECKIF(vendor == NULL) {
		LOG_DBG("vendor is NULL");
		return -EINVAL;
	}

	return codec_meta_set_val(meta, meta_len, meta_size, BT_AUDIO_METADATA_TYPE_VENDOR, vendor,
				  vendor_len);
}

#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0
int bt_audio_codec_cfg_meta_get_val(const struct bt_audio_codec_cfg *codec_cfg, uint8_t type,
				    const uint8_t **data)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_val(codec_cfg->meta, codec_cfg->meta_len, type, data);
}

int bt_audio_codec_cfg_meta_set_val(struct bt_audio_codec_cfg *codec_cfg,
				    enum bt_audio_metadata_type type, const uint8_t *data,
				    size_t data_len)
{
	int ret;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	ret = codec_meta_set_val(codec_cfg->meta, codec_cfg->meta_len, ARRAY_SIZE(codec_cfg->meta),
				 type, data, data_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_unset_val(struct bt_audio_codec_cfg *codec_cfg,
				      enum bt_audio_metadata_type type)
{
	int ret;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	ret = codec_meta_unset_val(codec_cfg->meta, codec_cfg->meta_len,
				   ARRAY_SIZE(codec_cfg->meta), type);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_pref_context(const struct bt_audio_codec_cfg *codec_cfg,
					     bool fallback_to_default)
{
	int ret;

	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	ret = codec_meta_get_pref_context(codec_cfg->meta, codec_cfg->meta_len);

	if (ret == -ENODATA && fallback_to_default && codec_cfg->id == BT_HCI_CODING_FORMAT_LC3) {
		return BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_set_pref_context(struct bt_audio_codec_cfg *codec_cfg,
					     enum bt_audio_context ctx)
{
	int ret;

	ret = codec_meta_set_pref_context(codec_cfg->meta, codec_cfg->meta_len,
					  ARRAY_SIZE(codec_cfg->meta), ctx);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_stream_context(const struct bt_audio_codec_cfg *codec_cfg)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_stream_context(codec_cfg->meta, codec_cfg->meta_len);
}

int bt_audio_codec_cfg_meta_set_stream_context(struct bt_audio_codec_cfg *codec_cfg,
					       enum bt_audio_context ctx)
{
	int ret;

	ret = codec_meta_set_stream_context(codec_cfg->meta, codec_cfg->meta_len,
					    ARRAY_SIZE(codec_cfg->meta), ctx);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_program_info(const struct bt_audio_codec_cfg *codec_cfg,
					     const uint8_t **program_info)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_program_info(codec_cfg->meta, codec_cfg->meta_len, program_info);
}

int bt_audio_codec_cfg_meta_set_program_info(struct bt_audio_codec_cfg *codec_cfg,
					     const uint8_t *program_info, size_t program_info_len)
{
	int ret;

	ret = codec_meta_set_program_info(codec_cfg->meta, codec_cfg->meta_len,
					  ARRAY_SIZE(codec_cfg->meta), program_info,
					  program_info_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_lang(const struct bt_audio_codec_cfg *codec_cfg,
				     const uint8_t **lang)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_lang(codec_cfg->meta, codec_cfg->meta_len, lang);
}

int bt_audio_codec_cfg_meta_set_lang(struct bt_audio_codec_cfg *codec_cfg,
				     const uint8_t lang[BT_AUDIO_LANG_SIZE])
{
	int ret;

	ret = codec_meta_set_lang(codec_cfg->meta, codec_cfg->meta_len, ARRAY_SIZE(codec_cfg->meta),
				  lang);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_ccid_list(const struct bt_audio_codec_cfg *codec_cfg,
					  const uint8_t **ccid_list)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_ccid_list(codec_cfg->meta, codec_cfg->meta_len, ccid_list);
}

int bt_audio_codec_cfg_meta_set_ccid_list(struct bt_audio_codec_cfg *codec_cfg,
					  const uint8_t *ccid_list, size_t ccid_list_len)
{
	int ret;

	ret = codec_meta_set_ccid_list(codec_cfg->meta, codec_cfg->meta_len,
				       ARRAY_SIZE(codec_cfg->meta), ccid_list, ccid_list_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_parental_rating(const struct bt_audio_codec_cfg *codec_cfg)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_parental_rating(codec_cfg->meta, codec_cfg->meta_len);
}

int bt_audio_codec_cfg_meta_set_parental_rating(struct bt_audio_codec_cfg *codec_cfg,
						enum bt_audio_parental_rating parental_rating)
{
	int ret;

	ret = codec_meta_set_parental_rating(codec_cfg->meta, codec_cfg->meta_len,
					     ARRAY_SIZE(codec_cfg->meta), parental_rating);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_program_info_uri(const struct bt_audio_codec_cfg *codec_cfg,
						 const uint8_t **program_info_uri)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_program_info_uri(codec_cfg->meta, codec_cfg->meta_len,
					       program_info_uri);
}

int bt_audio_codec_cfg_meta_set_program_info_uri(struct bt_audio_codec_cfg *codec_cfg,
						 const uint8_t *program_info_uri,
						 size_t program_info_uri_len)
{
	int ret;

	ret = codec_meta_set_program_info_uri(codec_cfg->meta, codec_cfg->meta_len,
					      ARRAY_SIZE(codec_cfg->meta), program_info_uri,
					      program_info_uri_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_audio_active_state(const struct bt_audio_codec_cfg *codec_cfg)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_audio_active_state(codec_cfg->meta, codec_cfg->meta_len);
}

int bt_audio_codec_cfg_meta_set_audio_active_state(struct bt_audio_codec_cfg *codec_cfg,
						   enum bt_audio_active_state state)
{
	int ret;

	ret = codec_meta_set_audio_active_state(codec_cfg->meta, codec_cfg->meta_len,
						ARRAY_SIZE(codec_cfg->meta), state);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_bcast_audio_immediate_rend_flag(
	const struct bt_audio_codec_cfg *codec_cfg)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_bcast_audio_immediate_rend_flag(codec_cfg->meta, codec_cfg->meta_len);
}

int bt_audio_codec_cfg_meta_set_bcast_audio_immediate_rend_flag(
	struct bt_audio_codec_cfg *codec_cfg)
{
	int ret;

	ret = codec_meta_set_bcast_audio_immediate_rend_flag(codec_cfg->meta, codec_cfg->meta_len,
							     ARRAY_SIZE(codec_cfg->meta));
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_assisted_listening_stream(
	const struct bt_audio_codec_cfg *codec_cfg)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_assisted_listening_stream(codec_cfg->meta, codec_cfg->meta_len);
}

int bt_audio_codec_cfg_meta_set_assisted_listening_stream(
	struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_assisted_listening_stream val)
{
	int ret;

	ret = codec_meta_set_assisted_listening_stream(codec_cfg->meta, codec_cfg->meta_len,
						       ARRAY_SIZE(codec_cfg->meta), val);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_extended(const struct bt_audio_codec_cfg *codec_cfg,
					 const uint8_t **extended_meta)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_extended(codec_cfg->meta, codec_cfg->meta_len, extended_meta);
}

int bt_audio_codec_cfg_meta_set_extended(struct bt_audio_codec_cfg *codec_cfg,
					 const uint8_t *extended_meta, size_t extended_meta_len)
{
	int ret;

	ret = codec_meta_set_extended(codec_cfg->meta, codec_cfg->meta_len,
				      ARRAY_SIZE(codec_cfg->meta), extended_meta,
				      extended_meta_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_vendor(const struct bt_audio_codec_cfg *codec_cfg,
				       const uint8_t **vendor_meta)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_vendor(codec_cfg->meta, codec_cfg->meta_len, vendor_meta);
}

int bt_audio_codec_cfg_meta_set_vendor(struct bt_audio_codec_cfg *codec_cfg,
				       const uint8_t *vendor_meta, size_t vendor_meta_len)
{
	int ret;

	ret = codec_meta_set_vendor(codec_cfg->meta, codec_cfg->meta_len,
				    ARRAY_SIZE(codec_cfg->meta), vendor_meta, vendor_meta_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cfg_meta_get_broadcast_name(const struct bt_audio_codec_cfg *codec_cfg,
					       const uint8_t **broadcast_name)
{
	CHECKIF(codec_cfg == NULL) {
		LOG_DBG("codec_cfg is NULL");
		return -EINVAL;
	}

	return codec_meta_get_broadcast_name(codec_cfg->meta, codec_cfg->meta_len, broadcast_name);
}

int bt_audio_codec_cfg_meta_set_broadcast_name(struct bt_audio_codec_cfg *codec_cfg,
					       const uint8_t *broadcast_name,
					       size_t broadcast_name_len)
{
	int ret;

	ret = codec_meta_set_broadcast_name(codec_cfg->meta, codec_cfg->meta_len,
					    ARRAY_SIZE(codec_cfg->meta), broadcast_name,
					    broadcast_name_len);
	if (ret >= 0) {
		codec_cfg->meta_len = ret;
	}

	return ret;
}
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 */

#if CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0
int bt_audio_codec_cap_meta_get_val(const struct bt_audio_codec_cap *codec_cap, uint8_t type,
				    const uint8_t **data)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_val(codec_cap->meta, codec_cap->meta_len, type, data);
}

int bt_audio_codec_cap_meta_set_val(struct bt_audio_codec_cap *codec_cap,
				    enum bt_audio_metadata_type type, const uint8_t *data,
				    size_t data_len)
{
	int ret;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	ret = codec_meta_set_val(codec_cap->meta, codec_cap->meta_len, ARRAY_SIZE(codec_cap->meta),
				 type, data, data_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_unset_val(struct bt_audio_codec_cap *codec_cap,
				      enum bt_audio_metadata_type type)
{
	int ret;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	ret = codec_meta_unset_val(codec_cap->meta, codec_cap->meta_len,
				   ARRAY_SIZE(codec_cap->meta), type);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_pref_context(const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_pref_context(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_pref_context(struct bt_audio_codec_cap *codec_cap,
					     enum bt_audio_context ctx)
{
	int ret;

	ret = codec_meta_set_pref_context(codec_cap->meta, codec_cap->meta_len,
					  ARRAY_SIZE(codec_cap->meta), ctx);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_stream_context(const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_stream_context(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_stream_context(struct bt_audio_codec_cap *codec_cap,
					       enum bt_audio_context ctx)
{
	int ret;

	ret = codec_meta_set_stream_context(codec_cap->meta, codec_cap->meta_len,
					    ARRAY_SIZE(codec_cap->meta), ctx);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_program_info(const struct bt_audio_codec_cap *codec_cap,
					     const uint8_t **program_info)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_program_info(codec_cap->meta, codec_cap->meta_len, program_info);
}

int bt_audio_codec_cap_meta_set_program_info(struct bt_audio_codec_cap *codec_cap,
					     const uint8_t *program_info, size_t program_info_len)
{
	int ret;

	ret = codec_meta_set_program_info(codec_cap->meta, codec_cap->meta_len,
					  ARRAY_SIZE(codec_cap->meta), program_info,
					  program_info_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_lang(const struct bt_audio_codec_cap *codec_cap,
				     const uint8_t **lang)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_lang(codec_cap->meta, codec_cap->meta_len, lang);
}

int bt_audio_codec_cap_meta_set_lang(struct bt_audio_codec_cap *codec_cap,
				     const uint8_t lang[BT_AUDIO_LANG_SIZE])
{
	int ret;

	ret = codec_meta_set_lang(codec_cap->meta, codec_cap->meta_len, ARRAY_SIZE(codec_cap->meta),
				  lang);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_ccid_list(const struct bt_audio_codec_cap *codec_cap,
					  const uint8_t **ccid_list)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_ccid_list(codec_cap->meta, codec_cap->meta_len, ccid_list);
}

int bt_audio_codec_cap_meta_set_ccid_list(struct bt_audio_codec_cap *codec_cap,
					  const uint8_t *ccid_list, size_t ccid_list_len)
{
	int ret;

	ret = codec_meta_set_ccid_list(codec_cap->meta, codec_cap->meta_len,
				       ARRAY_SIZE(codec_cap->meta), ccid_list, ccid_list_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_parental_rating(const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_parental_rating(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_parental_rating(struct bt_audio_codec_cap *codec_cap,
						enum bt_audio_parental_rating parental_rating)
{
	int ret;

	ret = codec_meta_set_parental_rating(codec_cap->meta, codec_cap->meta_len,
					     ARRAY_SIZE(codec_cap->meta), parental_rating);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_program_info_uri(const struct bt_audio_codec_cap *codec_cap,
						 const uint8_t **program_info_uri)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_program_info_uri(codec_cap->meta, codec_cap->meta_len,
					       program_info_uri);
}

int bt_audio_codec_cap_meta_set_program_info_uri(struct bt_audio_codec_cap *codec_cap,
						 const uint8_t *program_info_uri,
						 size_t program_info_uri_len)
{
	int ret;

	ret = codec_meta_set_program_info_uri(codec_cap->meta, codec_cap->meta_len,
					      ARRAY_SIZE(codec_cap->meta), program_info_uri,
					      program_info_uri_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_audio_active_state(const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_audio_active_state(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_audio_active_state(struct bt_audio_codec_cap *codec_cap,
						   enum bt_audio_active_state state)
{
	int ret;

	ret = codec_meta_set_audio_active_state(codec_cap->meta, codec_cap->meta_len,
						ARRAY_SIZE(codec_cap->meta), state);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_bcast_audio_immediate_rend_flag(
	const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_bcast_audio_immediate_rend_flag(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_bcast_audio_immediate_rend_flag(
	struct bt_audio_codec_cap *codec_cap)
{
	int ret;

	ret = codec_meta_set_bcast_audio_immediate_rend_flag(codec_cap->meta, codec_cap->meta_len,
							     ARRAY_SIZE(codec_cap->meta));
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_assisted_listening_stream(
	const struct bt_audio_codec_cap *codec_cap)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_assisted_listening_stream(codec_cap->meta, codec_cap->meta_len);
}

int bt_audio_codec_cap_meta_set_assisted_listening_stream(
	struct bt_audio_codec_cap *codec_cap, enum bt_audio_assisted_listening_stream val)
{
	int ret;

	ret = codec_meta_set_assisted_listening_stream(codec_cap->meta, codec_cap->meta_len,
						       ARRAY_SIZE(codec_cap->meta), val);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_extended(const struct bt_audio_codec_cap *codec_cap,
					 const uint8_t **extended_meta)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_extended(codec_cap->meta, codec_cap->meta_len, extended_meta);
}

int bt_audio_codec_cap_meta_set_extended(struct bt_audio_codec_cap *codec_cap,
					 const uint8_t *extended_meta, size_t extended_meta_len)
{
	int ret;

	ret = codec_meta_set_extended(codec_cap->meta, codec_cap->meta_len,
				      ARRAY_SIZE(codec_cap->meta), extended_meta,
				      extended_meta_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_vendor(const struct bt_audio_codec_cap *codec_cap,
				       const uint8_t **vendor_meta)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_vendor(codec_cap->meta, codec_cap->meta_len, vendor_meta);
}

int bt_audio_codec_cap_meta_set_vendor(struct bt_audio_codec_cap *codec_cap,
				       const uint8_t *vendor_meta, size_t vendor_meta_len)
{
	int ret;

	ret = codec_meta_set_vendor(codec_cap->meta, codec_cap->meta_len,
				    ARRAY_SIZE(codec_cap->meta), vendor_meta, vendor_meta_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_meta_get_broadcast_name(const struct bt_audio_codec_cap *codec_cap,
					       const uint8_t **broadcast_name)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return codec_meta_get_broadcast_name(codec_cap->meta, codec_cap->meta_len, broadcast_name);
}

int bt_audio_codec_cap_meta_set_broadcast_name(struct bt_audio_codec_cap *codec_cap,
					       const uint8_t *broadcast_name,
					       size_t broadcast_name_len)
{
	int ret;

	ret = codec_meta_set_broadcast_name(codec_cap->meta, codec_cap->meta_len,
					    ARRAY_SIZE(codec_cap->meta), broadcast_name,
					    broadcast_name_len);
	if (ret >= 0) {
		codec_cap->meta_len = ret;
	}

	return ret;
}
#endif /* CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0 */
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 ||                                       \
	* CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE > 0                                          \
	*/

#if CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0

static void init_net_buf_simple_from_codec_cap(struct net_buf_simple *buf,
					       struct bt_audio_codec_cap *codec_cap)
{
	buf->__buf = codec_cap->data;
	buf->data = codec_cap->data;
	buf->size = sizeof(codec_cap->data);
	buf->len = codec_cap->data_len;
}

int bt_audio_codec_cap_get_val(const struct bt_audio_codec_cap *codec_cap,
			       enum bt_audio_codec_cap_type type, const uint8_t **data)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	return bt_audio_data_get_val(codec_cap->data, codec_cap->data_len, (uint8_t)type, data);
}

int bt_audio_codec_cap_set_val(struct bt_audio_codec_cap *codec_cap,
			       enum bt_audio_codec_cap_type type, const uint8_t *data,
			       size_t data_len)
{
	struct net_buf_simple buf;
	int ret;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	CHECKIF(data == NULL) {
		LOG_DBG("data is NULL");
		return -EINVAL;
	}

	CHECKIF(data_len == 0U || data_len > UINT8_MAX) {
		LOG_DBG("Invalid data_len %zu", data_len);
		return -EINVAL;
	}

	init_net_buf_simple_from_codec_cap(&buf, codec_cap);

	ret = ltv_set_val(&buf, type, data, data_len);
	if (ret >= 0) {
		codec_cap->data_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_unset_val(struct bt_audio_codec_cap *codec_cap,
				 enum bt_audio_codec_cap_type type)
{
	struct net_buf_simple buf;
	int ret;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	init_net_buf_simple_from_codec_cap(&buf, codec_cap);

	ret = ltv_unset_val(&buf, type);
	if (ret >= 0) {
		codec_cap->data_len = ret;
	}

	return ret;
}

int bt_audio_codec_cap_get_freq(const struct bt_audio_codec_cap *codec_cap)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cap_get_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FREQ, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint16_t)) {
		return -EBADMSG;
	}

	return sys_get_le16(data);
}

int bt_audio_codec_cap_set_freq(struct bt_audio_codec_cap *codec_cap,
				enum bt_audio_codec_cap_freq freq)
{
	uint16_t freq_le16;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	if ((freq & BT_AUDIO_CODEC_CAP_FREQ_ANY) != freq) {
		LOG_DBG("Invalid freq value: %d", freq);
		return -EINVAL;
	}

	freq_le16 = sys_cpu_to_le16((uint16_t)freq);

	return bt_audio_codec_cap_set_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FREQ,
					  (uint8_t *)&freq_le16, sizeof(freq_le16));
}

int bt_audio_codec_cap_get_frame_dur(const struct bt_audio_codec_cap *codec_cap)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cap_get_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_DURATION, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

int bt_audio_codec_cap_set_frame_dur(struct bt_audio_codec_cap *codec_cap,
				     enum bt_audio_codec_cap_frame_dur frame_dur)
{
	uint8_t frame_dur_u8;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	if ((frame_dur & BT_AUDIO_CODEC_CAP_DURATION_ANY) == 0) {
		LOG_DBG("Invalid frame_dur value: %d", frame_dur);
		return -EINVAL;
	}

	if ((frame_dur & BT_AUDIO_CODEC_CAP_DURATION_PREFER_7_5) != 0) {
		if ((frame_dur & BT_AUDIO_CODEC_CAP_DURATION_PREFER_10) != 0) {
			LOG_DBG("Cannot prefer both 7.5 and 10ms: %d", frame_dur);
			return -EINVAL;
		}

		if ((frame_dur & BT_AUDIO_CODEC_CAP_DURATION_7_5) == 0) {
			LOG_DBG("Cannot prefer 7.5ms when not supported: %d", frame_dur);
			return -EINVAL;
		}
	}

	if ((frame_dur & BT_AUDIO_CODEC_CAP_DURATION_PREFER_10) != 0 &&
	    (frame_dur & BT_AUDIO_CODEC_CAP_DURATION_10) == 0) {
		LOG_DBG("Cannot prefer 10ms when not supported: %d", frame_dur);
		return -EINVAL;
	}

	frame_dur_u8 = (uint8_t)frame_dur;

	return bt_audio_codec_cap_set_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_DURATION,
					  &frame_dur_u8, sizeof(frame_dur_u8));
}

int bt_audio_codec_cap_get_supported_audio_chan_counts(const struct bt_audio_codec_cap *codec_cap,
						       bool fallback_to_default)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cap_get_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_CHAN_COUNT, &data);
	if (data == NULL) {
		if (fallback_to_default && codec_cap->id == BT_HCI_CODING_FORMAT_LC3) {
			return 1;
		}

		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

int bt_audio_codec_cap_set_supported_audio_chan_counts(
	struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_chan_count chan_count)
{
	uint8_t chan_count_u8;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	if ((chan_count & BT_AUDIO_CODEC_CAP_CHAN_COUNT_ANY) != chan_count) {
		LOG_DBG("Invalid chan_count value: %d", chan_count);
		return -EINVAL;
	}

	chan_count_u8 = (uint8_t)chan_count;

	return bt_audio_codec_cap_set_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_CHAN_COUNT,
					  &chan_count_u8, sizeof(chan_count_u8));
}

int bt_audio_codec_cap_get_octets_per_frame(
	const struct bt_audio_codec_cap *codec_cap,
	struct bt_audio_codec_octets_per_codec_frame *codec_frame)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	CHECKIF(codec_frame == NULL) {
		LOG_DBG("codec_frame is NULL");
		return -EINVAL;
	}

	data_len = bt_audio_codec_cap_get_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FRAME_LEN, &data);
	if (data == NULL) {
		return -ENODATA;
	}

	if (data_len != sizeof(uint32_t)) {
		return -EBADMSG;
	}

	codec_frame->min = sys_get_le16(data);
	codec_frame->max = sys_get_le16(data + sizeof(codec_frame->min));

	return 0;
}

int bt_audio_codec_cap_set_octets_per_frame(
	struct bt_audio_codec_cap *codec_cap,
	const struct bt_audio_codec_octets_per_codec_frame *codec_frame)
{
	uint8_t codec_frame_le32[4];

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	CHECKIF(codec_frame == NULL) {
		LOG_DBG("codec_frame is NULL");
		return -EINVAL;
	}

	if (codec_frame->min > codec_frame->max) {
		LOG_DBG("Invalid codec_frame values: %u/%u", codec_frame->min, codec_frame->max);
		return -EINVAL;
	}

	sys_put_le16(codec_frame->min, codec_frame_le32);
	sys_put_le16(codec_frame->max, codec_frame_le32 + 2);

	return bt_audio_codec_cap_set_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FRAME_LEN,
					  codec_frame_le32, sizeof(codec_frame_le32));
}

int bt_audio_codec_cap_get_max_codec_frames_per_sdu(const struct bt_audio_codec_cap *codec_cap,
						    bool fallback_to_default)
{
	const uint8_t *data;
	uint8_t data_len;

	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	data_len =
		bt_audio_codec_cap_get_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FRAME_COUNT, &data);
	if (data == NULL) {
		if (fallback_to_default && codec_cap->id == BT_HCI_CODING_FORMAT_LC3) {
			return 1;
		}

		return -ENODATA;
	}

	if (data_len != sizeof(uint8_t)) {
		return -EBADMSG;
	}

	return data[0];
}

int bt_audio_codec_cap_set_max_codec_frames_per_sdu(struct bt_audio_codec_cap *codec_cap,
						    uint8_t codec_frames_per_sdu)
{
	CHECKIF(codec_cap == NULL) {
		LOG_DBG("codec_cap is NULL");
		return -EINVAL;
	}

	return bt_audio_codec_cap_set_val(codec_cap, BT_AUDIO_CODEC_CAP_TYPE_FRAME_COUNT,
					  &codec_frames_per_sdu, sizeof(codec_frames_per_sdu));
}

#endif /* CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0 */