1 /* pcm_params_test.c
2 **
3 ** Copyright 2020, The Android Open Source Project
4 **
5 ** Redistribution and use in source and binary forms, with or without
6 ** modification, are permitted provided that the following conditions are met:
7 ** * Redistributions of source code must retain the above copyright
8 ** notice, this list of conditions and the following disclaimer.
9 ** * Redistributions in binary form must reproduce the above copyright
10 ** notice, this list of conditions and the following disclaimer in the
11 ** documentation and/or other materials provided with the distribution.
12 ** * Neither the name of The Android Open Source Project nor the names of
13 ** its contributors may be used to endorse or promote products derived
14 ** from this software without specific prior written permission.
15 **
16 ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND
17 ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE
20 ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
26 ** DAMAGE.
27 */
28
29 #include "pcm_test_device.h"
30
31 #include <cstring>
32 #include <iostream>
33 #include <memory>
34
35 #include <gtest/gtest.h>
36
37 #include "tinyalsa/pcm.h"
38
39 namespace tinyalsa {
40 namespace testing {
41
OrAllBits(const pcm_mask * mask)42 static inline unsigned int OrAllBits(const pcm_mask *mask) {
43 static constexpr size_t kTotalMaskBytes = 32;
44 unsigned int res = 0;
45 for (uint32_t i = 0; i < kTotalMaskBytes / sizeof(pcm_mask::bits[0]); ++i) {
46 res |= mask->bits[i];
47 }
48 return res;
49 }
50
TEST(PcmParamsTest,GetAndFreeParams)51 TEST(PcmParamsTest, GetAndFreeParams) {
52 pcm_params *params = nullptr;
53
54 // test to get nonexistent card and device.
55 params = pcm_params_get(1000, 1000, PCM_IN);
56 ASSERT_EQ(params, nullptr);
57
58 // test free null params.
59 pcm_params_free(params);
60
61 // assume that card 0, device 0 is always available.
62 params = pcm_params_get(0, 0, PCM_OUT);
63 ASSERT_NE(params, nullptr);
64 pcm_params_free(params);
65 }
66
TEST(PcmParamsTest,GetParamsBitMask)67 TEST(PcmParamsTest, GetParamsBitMask) {
68 // test to get mask with null params
69 ASSERT_EQ(pcm_params_get_mask(nullptr, PCM_PARAM_ACCESS), nullptr);
70
71 // assume that card 0, device 0 is always available.
72 pcm_params *params = pcm_params_get(0, 0, PCM_OUT);
73 ASSERT_NE(params, nullptr);
74
75 // test to get param which is not described in bit mask format
76 ASSERT_EQ(pcm_params_get_mask(params, PCM_PARAM_SAMPLE_BITS), nullptr);
77
78 // test to get mask out of pcm_param enum
79 ASSERT_EQ(pcm_params_get_mask(params, static_cast<pcm_param>(100)), nullptr);
80
81 const pcm_mask *mask = pcm_params_get_mask(params, PCM_PARAM_ACCESS);
82 ASSERT_NE(mask, nullptr);
83
84 pcm_params_free(params);
85 }
86
TEST(PcmParamsTest,GetParamsInterval)87 TEST(PcmParamsTest, GetParamsInterval) {
88 // test to get interval with null params
89 ASSERT_EQ(pcm_params_get_min(nullptr, PCM_PARAM_SAMPLE_BITS), 0);
90 ASSERT_EQ(pcm_params_get_max(nullptr, PCM_PARAM_SAMPLE_BITS), 0);
91
92 // assume that card 0, device 0 is always available.
93 pcm_params *params = pcm_params_get(0, 0, PCM_OUT);
94 ASSERT_NE(params, nullptr);
95
96 // test to get param which is not described in interval format
97 ASSERT_EQ(pcm_params_get_min(params, PCM_PARAM_ACCESS), 0);
98 ASSERT_EQ(pcm_params_get_max(params, PCM_PARAM_ACCESS), 0);
99
100 // test to get interval out of pcm_param enum
101 ASSERT_EQ(pcm_params_get_min(params, static_cast<pcm_param>(100)), 0);
102 ASSERT_EQ(pcm_params_get_max(params, static_cast<pcm_param>(100)), 0);
103
104 pcm_params_free(params);
105 }
106
TEST(PcmParamsTest,ParamsToString)107 TEST(PcmParamsTest, ParamsToString) {
108 // assume that card 0, device 0 is always available.
109 pcm_params *params = pcm_params_get(0, 0, PCM_OUT);
110 ASSERT_NE(params, nullptr);
111
112 char long_string[1024] = { 0 };
113 int count = pcm_params_to_string(params, long_string, sizeof(long_string));
114 ASSERT_LE(static_cast<size_t>(count), sizeof(long_string));
115 ASSERT_GT(static_cast<size_t>(count), 0);
116
117 char short_string[1] = { 0 };
118 count = pcm_params_to_string(params, short_string, sizeof(short_string));
119 ASSERT_GT(static_cast<size_t>(count), sizeof(short_string));
120
121 int proper_string_len = count;
122 int proper_string_size = proper_string_len + 1;
123 auto proper_string = std::make_unique<char[]>(proper_string_size);
124 count = pcm_params_to_string(params, proper_string.get(), proper_string_size);
125 ASSERT_GT(static_cast<size_t>(count), 0);
126 ASSERT_EQ(static_cast<size_t>(count), proper_string_len);
127 ASSERT_EQ(std::strlen(proper_string.get()), proper_string_len);
128 pcm_params_free(params);
129 }
130
TEST(PcmParamsTest,GetPlaybackDeviceParams)131 TEST(PcmParamsTest, GetPlaybackDeviceParams) {
132 pcm_params *params = pcm_params_get(kLoopbackCard, kLoopbackPlaybackDevice, PCM_OUT);
133 ASSERT_NE(params, nullptr);
134
135 const pcm_mask *access_mask = pcm_params_get_mask(params, PCM_PARAM_ACCESS);
136 ASSERT_NE(access_mask, nullptr);
137 ASSERT_NE(OrAllBits(access_mask), 0);
138
139 const pcm_mask *format_mask = pcm_params_get_mask(params, PCM_PARAM_FORMAT);
140 ASSERT_NE(format_mask, nullptr);
141 ASSERT_NE(OrAllBits(format_mask), 0);
142
143 const pcm_mask *subformat_mask = pcm_params_get_mask(params, PCM_PARAM_SUBFORMAT);
144 ASSERT_NE(subformat_mask, nullptr);
145 ASSERT_NE(OrAllBits(subformat_mask), 0);
146
147 unsigned int sample_bits_min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS);
148 unsigned int sample_bits_max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS);
149 std::cout << "sample_bits: " << sample_bits_min << " - " << sample_bits_max << std::endl;
150 ASSERT_GT(sample_bits_min, 0);
151 ASSERT_GT(sample_bits_max, 0);
152
153 unsigned int frame_bits_min = pcm_params_get_min(params, PCM_PARAM_FRAME_BITS);
154 unsigned int frame_bits_max = pcm_params_get_max(params, PCM_PARAM_FRAME_BITS);
155 std::cout << "frame_bits: " << frame_bits_min << " - " << frame_bits_max << std::endl;
156 ASSERT_GT(frame_bits_min, 0);
157 ASSERT_GT(frame_bits_max, 0);
158
159 unsigned int channels_min = pcm_params_get_min(params, PCM_PARAM_CHANNELS);
160 unsigned int channels_max = pcm_params_get_max(params, PCM_PARAM_CHANNELS);
161 std::cout << "channels: " << channels_min << " - " << channels_max << std::endl;
162 ASSERT_GT(channels_min, 0);
163 ASSERT_GT(channels_max, 0);
164
165 unsigned int sampling_rate_min = pcm_params_get_min(params, PCM_PARAM_RATE);
166 unsigned int sampling_rate_max = pcm_params_get_max(params, PCM_PARAM_RATE);
167 std::cout << "sampling_rate: " << sampling_rate_min << " - " << sampling_rate_max << std::endl;
168 ASSERT_GT(sampling_rate_min, 0);
169 ASSERT_GT(sampling_rate_max, 0);
170
171 unsigned int period_time_min = pcm_params_get_min(params, PCM_PARAM_PERIOD_TIME);
172 unsigned int period_time_max = pcm_params_get_max(params, PCM_PARAM_PERIOD_TIME);
173 std::cout << "period_time: " << period_time_min << " - " << period_time_max << std::endl;
174 ASSERT_GT(period_time_min, 0);
175 ASSERT_GT(period_time_max, 0);
176
177 unsigned int period_size_min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE);
178 unsigned int period_size_max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE);
179 std::cout << "period_size: " << period_size_min << " - " << period_size_max << std::endl;
180 ASSERT_GT(period_size_min, 0);
181 ASSERT_GT(period_size_max, 0);
182
183 unsigned int period_bytes_min = pcm_params_get_min(params, PCM_PARAM_PERIOD_BYTES);
184 unsigned int period_bytes_max = pcm_params_get_max(params, PCM_PARAM_PERIOD_BYTES);
185 std::cout << "period_bytes: " << period_bytes_min << " - " << period_bytes_max << std::endl;
186 ASSERT_GT(period_bytes_min, 0);
187 ASSERT_GT(period_bytes_max, 0);
188
189 unsigned int period_count_min = pcm_params_get_min(params, PCM_PARAM_PERIODS);
190 unsigned int period_count_max = pcm_params_get_max(params, PCM_PARAM_PERIODS);
191 std::cout << "period_count: " << period_count_min << " - " << period_count_max << std::endl;
192 ASSERT_GT(period_count_min, 0);
193 ASSERT_GT(period_count_max, 0);
194
195 unsigned int buffer_time_min = pcm_params_get_min(params, PCM_PARAM_BUFFER_TIME);
196 unsigned int buffer_time_max = pcm_params_get_max(params, PCM_PARAM_BUFFER_TIME);
197 std::cout << "buffer_time: " << buffer_time_min << " - " << buffer_time_max << std::endl;
198 ASSERT_GT(buffer_time_min, 0);
199 ASSERT_GT(buffer_time_max, 0);
200
201 unsigned int buffer_size_min = pcm_params_get_min(params, PCM_PARAM_BUFFER_SIZE);
202 unsigned int buffer_size_max = pcm_params_get_max(params, PCM_PARAM_BUFFER_SIZE);
203 std::cout << "buffer_size: " << buffer_size_min << " - " << buffer_size_max << std::endl;
204 ASSERT_GT(buffer_size_min, 0);
205 ASSERT_GT(buffer_size_max, 0);
206
207 unsigned int buffer_bytes_min = pcm_params_get_min(params, PCM_PARAM_BUFFER_BYTES);
208 unsigned int buffer_bytes_max = pcm_params_get_max(params, PCM_PARAM_BUFFER_BYTES);
209 std::cout << "buffer_bytes: " << buffer_bytes_min << " - " << buffer_bytes_max << std::endl;
210 ASSERT_GT(buffer_bytes_min, 0);
211 ASSERT_GT(buffer_bytes_max, 0);
212
213 unsigned int tick_in_us_min = pcm_params_get_min(params, PCM_PARAM_TICK_TIME);
214 unsigned int tick_in_us_max = pcm_params_get_max(params, PCM_PARAM_TICK_TIME);
215 ASSERT_GT(tick_in_us_max, 0);
216 std::cout << "tick_in_us: " << tick_in_us_min << " - " << tick_in_us_max << std::endl;
217
218 pcm_params_free(params);
219 }
220
221 } // namespace testing
222 } // namespace tinyalsa
223