1 /*
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10 #include "modules/audio_coding/codecs/isac/main/include/isac.h"
11
12 #include <string>
13
14 #include "test/gtest.h"
15 #include "test/testsupport/file_utils.h"
16
17 struct WebRtcISACStruct;
18
19 namespace webrtc {
20
21 // Number of samples in a 60 ms, sampled at 32 kHz.
22 const int kIsacNumberOfSamples = 320 * 6;
23 // Maximum number of bytes in output bitstream.
24 const size_t kMaxBytes = 1000;
25
26 class IsacTest : public ::testing::Test {
27 protected:
28 IsacTest();
29 virtual void SetUp();
30
31 WebRtcISACStruct* isac_codec_;
32
33 int16_t speech_data_[kIsacNumberOfSamples];
34 int16_t output_data_[kIsacNumberOfSamples];
35 uint8_t bitstream_[kMaxBytes];
36 uint8_t bitstream_small_[7]; // Simulate sync packets.
37 };
38
IsacTest()39 IsacTest::IsacTest() : isac_codec_(NULL) {}
40
SetUp()41 void IsacTest::SetUp() {
42 // Read some samples from a speech file, to be used in the encode test.
43 FILE* input_file;
44 const std::string file_name =
45 webrtc::test::ResourcePath("audio_coding/testfile32kHz", "pcm");
46 input_file = fopen(file_name.c_str(), "rb");
47 ASSERT_TRUE(input_file != NULL);
48 ASSERT_EQ(kIsacNumberOfSamples,
49 static_cast<int32_t>(fread(speech_data_, sizeof(int16_t),
50 kIsacNumberOfSamples, input_file)));
51 fclose(input_file);
52 input_file = NULL;
53 }
54
55 // Test failing Create.
TEST_F(IsacTest,IsacCreateFail)56 TEST_F(IsacTest, IsacCreateFail) {
57 // Test to see that an invalid pointer is caught.
58 EXPECT_EQ(-1, WebRtcIsac_Create(NULL));
59 }
60
61 // Test failing Free.
TEST_F(IsacTest,IsacFreeFail)62 TEST_F(IsacTest, IsacFreeFail) {
63 // Test to see that free function doesn't crash.
64 EXPECT_EQ(0, WebRtcIsac_Free(NULL));
65 }
66
67 // Test normal Create and Free.
TEST_F(IsacTest,IsacCreateFree)68 TEST_F(IsacTest, IsacCreateFree) {
69 EXPECT_EQ(0, WebRtcIsac_Create(&isac_codec_));
70 EXPECT_TRUE(isac_codec_ != NULL);
71 EXPECT_EQ(0, WebRtcIsac_Free(isac_codec_));
72 }
73
TEST_F(IsacTest,IsacUpdateBWE)74 TEST_F(IsacTest, IsacUpdateBWE) {
75 // Create encoder memory.
76 EXPECT_EQ(0, WebRtcIsac_Create(&isac_codec_));
77
78 // Init encoder (adaptive mode) and decoder.
79 WebRtcIsac_EncoderInit(isac_codec_, 0);
80 WebRtcIsac_DecoderInit(isac_codec_);
81
82 int encoded_bytes;
83
84 // Test with call with a small packet (sync packet).
85 EXPECT_EQ(-1, WebRtcIsac_UpdateBwEstimate(isac_codec_, bitstream_small_, 7, 1,
86 12345, 56789));
87
88 // Encode 60 ms of data (needed to create a first packet).
89 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
90 EXPECT_EQ(0, encoded_bytes);
91 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
92 EXPECT_EQ(0, encoded_bytes);
93 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
94 EXPECT_EQ(0, encoded_bytes);
95 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
96 EXPECT_EQ(0, encoded_bytes);
97 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
98 EXPECT_EQ(0, encoded_bytes);
99 encoded_bytes = WebRtcIsac_Encode(isac_codec_, speech_data_, bitstream_);
100 EXPECT_GT(encoded_bytes, 0);
101
102 // Call to update bandwidth estimator with real data.
103 EXPECT_EQ(0, WebRtcIsac_UpdateBwEstimate(isac_codec_, bitstream_,
104 static_cast<size_t>(encoded_bytes),
105 1, 12345, 56789));
106
107 // Free memory.
108 EXPECT_EQ(0, WebRtcIsac_Free(isac_codec_));
109 }
110
111 } // namespace webrtc
112