1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/strings/string_util.h"
6 #include "media/base/decoder_buffer.h"
7 #include "testing/gtest/include/gtest/gtest.h"
8
9 namespace media {
10
TEST(DecoderBufferTest,Constructors)11 TEST(DecoderBufferTest, Constructors) {
12 scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(0));
13 EXPECT_TRUE(buffer->data());
14 EXPECT_EQ(0, buffer->data_size());
15 EXPECT_FALSE(buffer->end_of_stream());
16
17 const int kTestSize = 10;
18 scoped_refptr<DecoderBuffer> buffer3(new DecoderBuffer(kTestSize));
19 ASSERT_TRUE(buffer3.get());
20 EXPECT_EQ(kTestSize, buffer3->data_size());
21 }
22
TEST(DecoderBufferTest,CreateEOSBuffer)23 TEST(DecoderBufferTest, CreateEOSBuffer) {
24 scoped_refptr<DecoderBuffer> buffer(DecoderBuffer::CreateEOSBuffer());
25 EXPECT_TRUE(buffer->end_of_stream());
26 }
27
TEST(DecoderBufferTest,CopyFrom)28 TEST(DecoderBufferTest, CopyFrom) {
29 const uint8 kData[] = "hello";
30 const int kDataSize = arraysize(kData);
31 scoped_refptr<DecoderBuffer> buffer2(DecoderBuffer::CopyFrom(
32 reinterpret_cast<const uint8*>(&kData), kDataSize));
33 ASSERT_TRUE(buffer2.get());
34 EXPECT_NE(kData, buffer2->data());
35 EXPECT_EQ(buffer2->data_size(), kDataSize);
36 EXPECT_EQ(0, memcmp(buffer2->data(), kData, kDataSize));
37 EXPECT_FALSE(buffer2->end_of_stream());
38 scoped_refptr<DecoderBuffer> buffer3(DecoderBuffer::CopyFrom(
39 reinterpret_cast<const uint8*>(&kData), kDataSize,
40 reinterpret_cast<const uint8*>(&kData), kDataSize));
41 ASSERT_TRUE(buffer3.get());
42 EXPECT_NE(kData, buffer3->data());
43 EXPECT_EQ(buffer3->data_size(), kDataSize);
44 EXPECT_EQ(0, memcmp(buffer3->data(), kData, kDataSize));
45 EXPECT_NE(kData, buffer3->side_data());
46 EXPECT_EQ(buffer3->side_data_size(), kDataSize);
47 EXPECT_EQ(0, memcmp(buffer3->side_data(), kData, kDataSize));
48 EXPECT_FALSE(buffer3->end_of_stream());
49 }
50
51 #if !defined(OS_ANDROID)
TEST(DecoderBufferTest,PaddingAlignment)52 TEST(DecoderBufferTest, PaddingAlignment) {
53 const uint8 kData[] = "hello";
54 const int kDataSize = arraysize(kData);
55 scoped_refptr<DecoderBuffer> buffer2(DecoderBuffer::CopyFrom(
56 reinterpret_cast<const uint8*>(&kData), kDataSize));
57 ASSERT_TRUE(buffer2.get());
58
59 // Padding data should always be zeroed.
60 for(int i = 0; i < DecoderBuffer::kPaddingSize; i++)
61 EXPECT_EQ((buffer2->data() + kDataSize)[i], 0);
62
63 // If the data is padded correctly we should be able to read and write past
64 // the end of the data by DecoderBuffer::kPaddingSize bytes without crashing
65 // or Valgrind/ASAN throwing errors.
66 const uint8 kFillChar = 0xFF;
67 memset(
68 buffer2->writable_data() + kDataSize, kFillChar,
69 DecoderBuffer::kPaddingSize);
70 for(int i = 0; i < DecoderBuffer::kPaddingSize; i++)
71 EXPECT_EQ((buffer2->data() + kDataSize)[i], kFillChar);
72
73 EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(
74 buffer2->data()) & (DecoderBuffer::kAlignmentSize - 1));
75 }
76 #endif
77
TEST(DecoderBufferTest,ReadingWriting)78 TEST(DecoderBufferTest, ReadingWriting) {
79 const char kData[] = "hello";
80 const int kDataSize = arraysize(kData);
81
82 scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(kDataSize));
83 ASSERT_TRUE(buffer.get());
84
85 uint8* data = buffer->writable_data();
86 ASSERT_TRUE(data);
87 ASSERT_EQ(kDataSize, buffer->data_size());
88 memcpy(data, kData, kDataSize);
89 const uint8* read_only_data = buffer->data();
90 ASSERT_EQ(data, read_only_data);
91 ASSERT_EQ(0, memcmp(read_only_data, kData, kDataSize));
92 EXPECT_FALSE(buffer->end_of_stream());
93 }
94
TEST(DecoderBufferTest,GetDecryptConfig)95 TEST(DecoderBufferTest, GetDecryptConfig) {
96 scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(0));
97 EXPECT_FALSE(buffer->decrypt_config());
98 }
99
100 } // namespace media
101