15b4baba28
- minimize RAM usage of all components - use both IRAM and DRAM in player component so we can buffer up to 1s on modules without SPI RAM - support fragemented pcm chunks so we can use all available RAM if there isn't a big enough block available but still enough HEAP - reinclude all components from jorgen's master branch - add custom i2s driver to get a precise timing of initial sync - change wrong usage of esp_timer for latency measurement of snapcast protocol - add player component
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
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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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#ifndef _dsp_common_H_
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#define _dsp_common_H_
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#include <stdint.h>
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#include <stdbool.h>
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#include "dsp_err.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/**
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* @brief check power of two
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* The function check if the argument is power of 2.
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* The implementation use ANSI C and could be compiled and run on any platform
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*
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* @return
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* - true if x is power of two
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* - false if no
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*/
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bool dsp_is_power_of_two(int x);
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/**
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* @brief Power of two
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* The function return power of 2 for values 2^N.
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* The implementation use ANSI C and could be compiled and run on any platform
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*
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* @return
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* - power of two
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*/
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int dsp_power_of_two(int x);
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#ifdef __cplusplus
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}
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#endif
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#endif // _dsp_common_H_
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