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
103 lines
3.0 KiB
C
103 lines
3.0 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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#include <string.h>
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#include "unity.h"
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#include "dsp_platform.h"
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#include "esp_log.h"
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#include "esp_dsp.h"
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#include "dsps_wind.h"
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static const int length = 1024;
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static float data[1024];
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// This test check if the window is symmetric
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TEST_CASE("dsps_wind_hann_f32: test Hann window for symmetry", "[dsps]")
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{
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dsps_wind_hann_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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TEST_CASE("dsps_wind_blackman_f32: test Blackman window for symmetry", "[dsps]")
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{
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dsps_wind_blackman_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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TEST_CASE("dsps_wind_blackman_harris_f32: test Blackman-Hariss window for symmetry", "[dsps]")
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{
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dsps_wind_blackman_harris_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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TEST_CASE("dsps_wind_blackman_nuttall_f32: test Blackman-Nuttall window for symmetry", "[dsps]")
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{
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dsps_wind_blackman_nuttall_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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TEST_CASE("dsps_wind_nuttall_f32: test Nuttall window for symmetry", "[dsps]")
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{
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dsps_wind_nuttall_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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TEST_CASE("dsps_wind_flat_top_f32: test Flat-Top window for symmetry", "[dsps]")
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{
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dsps_wind_flat_top_f32(data, length);
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float hann_diff = 0;
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for (int i=0 ; i< length/2 ; i++)
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{
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hann_diff += fabs(data[i] - data[length - 1 -i]);
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}
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if (hann_diff > 0) TEST_ASSERT_EQUAL(0, hann_diff);
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dsps_view(data, length, 64, 10, 0, 1, '.');
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}
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