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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 #ifndef MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ | 5 #ifndef MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ |
6 #define MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ | 6 #define MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "base/macros.h" | 13 #include "base/macros.h" |
14 #include "media/base/encryption_scheme.h" | |
15 #include "media/base/media_export.h" | 14 #include "media/base/media_export.h" |
16 #include "media/base/video_codecs.h" | 15 #include "media/base/video_codecs.h" |
17 #include "media/base/video_types.h" | 16 #include "media/base/video_types.h" |
18 #include "ui/gfx/geometry/rect.h" | 17 #include "ui/gfx/geometry/rect.h" |
19 #include "ui/gfx/geometry/size.h" | 18 #include "ui/gfx/geometry/size.h" |
20 | 19 |
21 namespace media { | 20 namespace media { |
22 | 21 |
23 MEDIA_EXPORT VideoCodec | 22 MEDIA_EXPORT VideoCodec |
24 VideoCodecProfileToVideoCodec(VideoCodecProfile profile); | 23 VideoCodecProfileToVideoCodec(VideoCodecProfile profile); |
25 | 24 |
26 class MEDIA_EXPORT VideoDecoderConfig { | 25 class MEDIA_EXPORT VideoDecoderConfig { |
27 public: | 26 public: |
28 // Constructs an uninitialized object. Clients should call Initialize() with | 27 // Constructs an uninitialized object. Clients should call Initialize() with |
29 // appropriate values before using. | 28 // appropriate values before using. |
30 VideoDecoderConfig(); | 29 VideoDecoderConfig(); |
31 | 30 |
32 // Constructs an initialized object. It is acceptable to pass in NULL for | 31 // Constructs an initialized object. It is acceptable to pass in NULL for |
33 // |extra_data|, otherwise the memory is copied. | 32 // |extra_data|, otherwise the memory is copied. |
34 VideoDecoderConfig(VideoCodec codec, | 33 VideoDecoderConfig(VideoCodec codec, |
35 VideoCodecProfile profile, | 34 VideoCodecProfile profile, |
36 VideoPixelFormat format, | 35 VideoPixelFormat format, |
37 ColorSpace color_space, | 36 ColorSpace color_space, |
38 const gfx::Size& coded_size, | 37 const gfx::Size& coded_size, |
39 const gfx::Rect& visible_rect, | 38 const gfx::Rect& visible_rect, |
40 const gfx::Size& natural_size, | 39 const gfx::Size& natural_size, |
41 const std::vector<uint8_t>& extra_data, | 40 const std::vector<uint8_t>& extra_data, |
42 const EncryptionScheme& encryption_scheme); | 41 bool is_encrypted); |
43 | 42 |
44 VideoDecoderConfig(const VideoDecoderConfig& other); | 43 VideoDecoderConfig(const VideoDecoderConfig& other); |
45 | 44 |
46 ~VideoDecoderConfig(); | 45 ~VideoDecoderConfig(); |
47 | 46 |
48 // Resets the internal state of this object. | 47 // Resets the internal state of this object. |
49 void Initialize(VideoCodec codec, | 48 void Initialize(VideoCodec codec, |
50 VideoCodecProfile profile, | 49 VideoCodecProfile profile, |
51 VideoPixelFormat format, | 50 VideoPixelFormat format, |
52 ColorSpace color_space, | 51 ColorSpace color_space, |
53 const gfx::Size& coded_size, | 52 const gfx::Size& coded_size, |
54 const gfx::Rect& visible_rect, | 53 const gfx::Rect& visible_rect, |
55 const gfx::Size& natural_size, | 54 const gfx::Size& natural_size, |
56 const std::vector<uint8_t>& extra_data, | 55 const std::vector<uint8_t>& extra_data, |
57 const EncryptionScheme& encryption_scheme); | 56 bool is_encrypted); |
58 | 57 |
59 // Returns true if this object has appropriate configuration values, false | 58 // Returns true if this object has appropriate configuration values, false |
60 // otherwise. | 59 // otherwise. |
61 bool IsValidConfig() const; | 60 bool IsValidConfig() const; |
62 | 61 |
63 // Returns true if all fields in |config| match this config. | 62 // Returns true if all fields in |config| match this config. |
64 // Note: The contents of |extra_data_| are compared not the raw pointers. | 63 // Note: The contents of |extra_data_| are compared not the raw pointers. |
65 bool Matches(const VideoDecoderConfig& config) const; | 64 bool Matches(const VideoDecoderConfig& config) const; |
66 | 65 |
67 // Returns a human-readable string describing |*this|. For debugging & test | 66 // Returns a human-readable string describing |*this|. For debugging & test |
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94 // into account. | 93 // into account. |
95 gfx::Size natural_size() const { return natural_size_; } | 94 gfx::Size natural_size() const { return natural_size_; } |
96 | 95 |
97 // Optional byte data required to initialize video decoders, such as H.264 | 96 // Optional byte data required to initialize video decoders, such as H.264 |
98 // AAVC data. | 97 // AAVC data. |
99 const std::vector<uint8_t>& extra_data() const { return extra_data_; } | 98 const std::vector<uint8_t>& extra_data() const { return extra_data_; } |
100 | 99 |
101 // Whether the video stream is potentially encrypted. | 100 // Whether the video stream is potentially encrypted. |
102 // Note that in a potentially encrypted video stream, individual buffers | 101 // Note that in a potentially encrypted video stream, individual buffers |
103 // can be encrypted or not encrypted. | 102 // can be encrypted or not encrypted. |
104 bool is_encrypted() const { return encryption_scheme_.is_encrypted(); } | 103 bool is_encrypted() const { return is_encrypted_; } |
105 | |
106 // Encryption scheme used for encrypted buffers. | |
107 const EncryptionScheme& encryption_scheme() const { | |
108 return encryption_scheme_; | |
109 } | |
110 | 104 |
111 private: | 105 private: |
112 VideoCodec codec_; | 106 VideoCodec codec_; |
113 VideoCodecProfile profile_; | 107 VideoCodecProfile profile_; |
114 | 108 |
115 VideoPixelFormat format_; | 109 VideoPixelFormat format_; |
116 ColorSpace color_space_; | 110 ColorSpace color_space_; |
117 | 111 |
118 gfx::Size coded_size_; | 112 gfx::Size coded_size_; |
119 gfx::Rect visible_rect_; | 113 gfx::Rect visible_rect_; |
120 gfx::Size natural_size_; | 114 gfx::Size natural_size_; |
121 | 115 |
122 std::vector<uint8_t> extra_data_; | 116 std::vector<uint8_t> extra_data_; |
123 | 117 |
124 EncryptionScheme encryption_scheme_; | 118 bool is_encrypted_; |
125 | 119 |
126 // Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler | 120 // Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler |
127 // generated copy constructor and assignment operator. Since the extra data is | 121 // generated copy constructor and assignment operator. Since the extra data is |
128 // typically small, the performance impact is minimal. | 122 // typically small, the performance impact is minimal. |
129 }; | 123 }; |
130 | 124 |
131 } // namespace media | 125 } // namespace media |
132 | 126 |
133 #endif // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ | 127 #endif // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ |
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