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376961d168
* Update IDF to 65acd99 * Update platformio and arduino build paths and libs * Update esptool binaries
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/******************************************************************************
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*
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* Copyright (C) 1999-2012 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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#ifndef _SBC_IF_H
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#define _SBC_IF_H
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#define PCM_BUFFER_SIZE 512
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/*
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SBC_Init - called once for each track played
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pcm_sample_freq - 4000 to 48000
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channels - 1 mono 2 stereo
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bits_per_sample - 8 or 16
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return - 0 sucess
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*/
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int SBC_init(int pcm_sample_freq, int channels, int bits_per_sample);
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/*
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SBC_write - called repeatedly with pcm_in pointer
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increasing by length until track is finished.
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pcm_in - pointer to PCM buffer
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length - any
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sbc_out - pointer to SBC output buffer
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return - number of bytes written to sbc_out
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*/
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int SBC_write(unsigned char *pcm_in, int length, unsigned char *sbc_out);
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#endif
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