1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
6 * the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16
17#include <stdint.h>
18#include <gtest/gtest.h>
19
20#include <UniquePtr.h>
21
22#include "audio/Buffer.h"
23
24
25class BufferTest : public testing::Test {
26public:
27
28    virtual void SetUp() {
29
30    }
31
32    virtual void TearDown() {
33
34    }
35};
36
37
38TEST_F(BufferTest, saveLoadStereoTest) {
39    const int BUFFER_SIZE = 32;
40
41    UniquePtr<Buffer> buffer(new Buffer(BUFFER_SIZE, BUFFER_SIZE, true));
42    ASSERT_TRUE(buffer.get() != NULL);
43    int16_t* data = (int16_t*)buffer->getData();
44    ASSERT_TRUE(data != NULL);
45    for (int i = 0; i < BUFFER_SIZE/4; i++) {
46        data[2*i] = i;
47        data[2*i+1] = i;
48    }
49    android::String8 file("/tmp/cts_audio_temp");
50    ASSERT_TRUE(buffer->saveToFile(file));
51    file.append(".r2s");
52    UniquePtr<Buffer> bufferRead(Buffer::loadFromFile(file));
53    ASSERT_TRUE(bufferRead.get() != NULL);
54    ASSERT_TRUE(bufferRead->getSize() == (size_t)BUFFER_SIZE);
55    ASSERT_TRUE(bufferRead->isStereo());
56    int16_t* dataRead = (int16_t*)bufferRead->getData();
57    for (int i = 0; i < BUFFER_SIZE/4; i++) {
58        ASSERT_TRUE(data[2*i] == dataRead[2*i]);
59        ASSERT_TRUE(data[2*i+1] == dataRead[2*i+1]);
60    }
61}
62
63TEST_F(BufferTest, monoLTest) {
64    const int BUFFER_SIZE = 8;
65
66    UniquePtr<Buffer> buffer(new Buffer(BUFFER_SIZE, BUFFER_SIZE, true));
67    ASSERT_TRUE(buffer.get() != NULL);
68    int16_t* data = (int16_t*)buffer->getData();
69    ASSERT_TRUE(data != NULL);
70    for (int i = 0; i < BUFFER_SIZE/2; i++) {
71        data[i] = i;
72    }
73    UniquePtr<Buffer> bufferl(new Buffer(BUFFER_SIZE/2, BUFFER_SIZE/2, false));
74    ASSERT_TRUE(bufferl.get() != NULL);
75    data = (int16_t*)bufferl->getData();
76    ASSERT_TRUE(data != NULL);
77    for (int i = 0; i < BUFFER_SIZE/4; i++) {
78        data[i] = 2 * i;
79    }
80    buffer->changeToMono(Buffer::EKeepCh0);
81    ASSERT_TRUE((*buffer) == (*bufferl));
82}
83