/******************************************************************************
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*
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* Copyright 2004-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* This is the interface to utility functions for dealing with SBC data
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* frames and codec capabilities.
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*
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******************************************************************************/
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#ifndef A2DP_SBC_UP_SAMPLE_H
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#define A2DP_SBC_UP_SAMPLE_H
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#include <stdint.h>
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/*******************************************************************************
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*
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* Function a2dp_sbc_init_up_sample
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*
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* Description initialize the up sample
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*
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* src_sps: samples per second (source audio data)
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* dst_sps: samples per second (converted audio data)
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* bits: number of bits per pcm sample
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* n_channels: number of channels (i.e. mono(1), stereo(2)...)
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*
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* Returns none
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*
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******************************************************************************/
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void a2dp_sbc_init_up_sample(uint32_t src_sps, uint32_t dst_sps, uint8_t bits,
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uint8_t n_channels);
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/*******************************************************************************
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*
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* Function a2dp_sbc_up_sample
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*
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* Description Given the source (p_src) audio data and
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* source speed (src_sps, samples per second),
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* This function converts it to audio data in the desired
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* format
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*
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* p_src: the data buffer that holds the source audio data
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* p_dst: the data buffer to hold the converted audio data
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* src_samples: The number of source samples (number of bytes)
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* dst_samples: The size of p_dst (number of bytes)
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*
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* Note: An AE reported an issue with this function.
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* When called with a2dp_sbc_up_sample(src, uint8_array_dst..)
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* the byte before uint8_array_dst may get overwritten.
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* Using uint16_array_dst avoids the problem.
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* This issue is related to endian-ness and is hard to resolve
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* in a generic manner.
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* **************** Please use uint16 array as dst.
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*
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* Returns The number of bytes used in p_dst
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* The number of bytes used in p_src (in *p_ret)
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*
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******************************************************************************/
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int a2dp_sbc_up_sample(void* p_src, void* p_dst, uint32_t src_samples,
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uint32_t dst_samples, uint32_t* p_ret);
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/*******************************************************************************
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*
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* Function a2dp_sbc_up_sample_16s (16bits-stereo)
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*
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* Description Given the source (p_src) audio data and
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* source speed (src_sps, samples per second),
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* This function converts it to audio data in the desired
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* format
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*
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* p_src: the data buffer that holds the source audio data
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* p_dst: the data buffer to hold the converted audio data
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* src_samples: The number of source samples (in uint of 4
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* bytes)
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* dst_samples: The size of p_dst (in uint of 4 bytes)
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*
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* Returns The number of bytes used in p_dst
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* The number of bytes used in p_src (in *p_ret)
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*
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******************************************************************************/
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int a2dp_sbc_up_sample_16s(void* p_src, void* p_dst, uint32_t src_samples,
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uint32_t dst_samples, uint32_t* p_ret);
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/*******************************************************************************
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*
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* Function a2dp_sbc_up_sample_16m (16bits-mono)
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*
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* Description Given the source (p_src) audio data and
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* source speed (src_sps, samples per second),
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* This function converts it to audio data in the desired
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* format
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*
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* p_src: the data buffer that holds the source audio data
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* p_dst: the data buffer to hold the converted audio data
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* src_samples: The number of source samples (in uint of 2
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* bytes)
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* dst_samples: The size of p_dst (in uint of 2 bytes)
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*
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* Returns The number of bytes used in p_dst
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* The number of bytes used in p_src (in *p_ret)
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*
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******************************************************************************/
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int a2dp_sbc_up_sample_16m(void* p_src, void* p_dst, uint32_t src_samples,
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uint32_t dst_samples, uint32_t* p_ret);
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/*******************************************************************************
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*
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* Function a2dp_sbc_up_sample_8s (8bits-stereo)
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*
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* Description Given the source (p_src) audio data and
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* source speed (src_sps, samples per second),
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* This function converts it to audio data in the desired
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* format
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*
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* p_src: the data buffer that holds the source audio data
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* p_dst: the data buffer to hold the converted audio data
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* src_samples: The number of source samples (in uint of 2
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* bytes)
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* dst_samples: The size of p_dst (in uint of 2 bytes)
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*
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* Returns The number of bytes used in p_dst
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* The number of bytes used in p_src (in *p_ret)
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*
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******************************************************************************/
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int a2dp_sbc_up_sample_8s(void* p_src, void* p_dst, uint32_t src_samples,
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uint32_t dst_samples, uint32_t* p_ret);
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/*******************************************************************************
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*
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* Function a2dp_sbc_up_sample_8m (8bits-mono)
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*
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* Description Given the source (p_src) audio data and
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* source speed (src_sps, samples per second),
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* This function converts it to audio data in the desired
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* format
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*
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* p_src: the data buffer that holds the source audio data
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* p_dst: the data buffer to hold the converted audio data
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* src_samples: The number of source samples (number of bytes)
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* dst_samples: The size of p_dst (number of bytes)
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*
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* Returns The number of bytes used in p_dst
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* The number of bytes used in p_src (in *p_ret)
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*
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******************************************************************************/
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int a2dp_sbc_up_sample_8m(void* p_src, void* p_dst, uint32_t src_samples,
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uint32_t dst_samples, uint32_t* p_ret);
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#endif // A2DP_SBC_UP_SAMPLE_H
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