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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/base/decoder_buffer.h" | 5 #include "media/base/decoder_buffer.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "media/base/decrypt_config.h" | 8 #include "media/base/decrypt_config.h" |
9 | 9 |
10 namespace media { | 10 namespace media { |
11 | 11 |
12 DecoderBuffer::DecoderBuffer(int buffer_size) | 12 DecoderBuffer::DecoderBuffer(int size) |
13 : buffer_size_(buffer_size) { | 13 : size_(size) { |
14 Initialize(); | 14 Initialize(); |
15 } | 15 } |
16 | 16 |
17 DecoderBuffer::DecoderBuffer(const uint8* data, int buffer_size) | 17 DecoderBuffer::DecoderBuffer(const uint8* data, int size) |
18 : buffer_size_(buffer_size) { | 18 : size_(size) { |
19 // Prevent invalid allocations. Also used to create end of stream buffers. | 19 if (!data) { |
20 if (!data || buffer_size <= 0) { | 20 CHECK_EQ(size_, 0); |
21 buffer_size_ = 0; | |
22 return; | 21 return; |
23 } | 22 } |
24 | 23 |
25 Initialize(); | 24 Initialize(); |
26 memcpy(data_.get(), data, buffer_size_); | 25 memcpy(data_.get(), data, size_); |
27 } | 26 } |
28 | 27 |
29 DecoderBuffer::~DecoderBuffer() {} | 28 DecoderBuffer::~DecoderBuffer() {} |
30 | 29 |
31 void DecoderBuffer::Initialize() { | 30 void DecoderBuffer::Initialize() { |
32 DCHECK_GE(buffer_size_, 0); | 31 CHECK_GE(size_, 0); |
33 data_.reset(reinterpret_cast<uint8*>( | 32 data_.reset(reinterpret_cast<uint8*>( |
34 base::AlignedAlloc(buffer_size_ + kPaddingSize, kAlignmentSize))); | 33 base::AlignedAlloc(size_ + kPaddingSize, kAlignmentSize))); |
35 memset(data_.get() + buffer_size_, 0, kPaddingSize); | 34 memset(data_.get() + size_, 0, kPaddingSize); |
36 } | 35 } |
37 | 36 |
38 scoped_refptr<DecoderBuffer> DecoderBuffer::CopyFrom(const uint8* data, | 37 scoped_refptr<DecoderBuffer> DecoderBuffer::CopyFrom(const uint8* data, |
39 int data_size) { | 38 int data_size) { |
40 DCHECK(data); | 39 // If you hit this checks you likely have a bug in a demuxer. Go fix it. |
| 40 CHECK(data); |
41 return make_scoped_refptr(new DecoderBuffer(data, data_size)); | 41 return make_scoped_refptr(new DecoderBuffer(data, data_size)); |
42 } | 42 } |
43 | 43 |
44 scoped_refptr<DecoderBuffer> DecoderBuffer::CreateEOSBuffer() { | 44 scoped_refptr<DecoderBuffer> DecoderBuffer::CreateEOSBuffer() { |
45 return make_scoped_refptr(new DecoderBuffer(NULL, 0)); | 45 return make_scoped_refptr(new DecoderBuffer(NULL, 0)); |
46 } | 46 } |
47 | 47 |
48 base::TimeDelta DecoderBuffer::GetTimestamp() const { | 48 base::TimeDelta DecoderBuffer::GetTimestamp() const { |
49 return timestamp_; | 49 return timestamp_; |
50 } | 50 } |
(...skipping 12 matching lines...) Expand all Loading... |
63 | 63 |
64 const uint8* DecoderBuffer::GetData() const { | 64 const uint8* DecoderBuffer::GetData() const { |
65 return data_.get(); | 65 return data_.get(); |
66 } | 66 } |
67 | 67 |
68 uint8* DecoderBuffer::GetWritableData() const { | 68 uint8* DecoderBuffer::GetWritableData() const { |
69 return data_.get(); | 69 return data_.get(); |
70 } | 70 } |
71 | 71 |
72 int DecoderBuffer::GetDataSize() const { | 72 int DecoderBuffer::GetDataSize() const { |
73 return buffer_size_; | 73 return size_; |
74 } | 74 } |
75 | 75 |
76 const DecryptConfig* DecoderBuffer::GetDecryptConfig() const { | 76 const DecryptConfig* DecoderBuffer::GetDecryptConfig() const { |
77 return decrypt_config_.get(); | 77 return decrypt_config_.get(); |
78 } | 78 } |
79 | 79 |
80 void DecoderBuffer::SetDecryptConfig(scoped_ptr<DecryptConfig> decrypt_config) { | 80 void DecoderBuffer::SetDecryptConfig(scoped_ptr<DecryptConfig> decrypt_config) { |
81 decrypt_config_ = decrypt_config.Pass(); | 81 decrypt_config_ = decrypt_config.Pass(); |
82 } | 82 } |
83 | 83 |
84 bool DecoderBuffer::IsEndOfStream() const { | 84 bool DecoderBuffer::IsEndOfStream() const { |
85 return data_ == NULL; | 85 return data_ == NULL; |
86 } | 86 } |
87 | 87 |
88 } // namespace media | 88 } // namespace media |
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