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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 "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "media/base/media_export.h" | 10 #include "media/base/media_export.h" |
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65 // appropriate values before using. | 65 // appropriate values before using. |
66 VideoDecoderConfig(); | 66 VideoDecoderConfig(); |
67 | 67 |
68 // Constructs an initialized object. It is acceptable to pass in NULL for | 68 // Constructs an initialized object. It is acceptable to pass in NULL for |
69 // |extra_data|, otherwise the memory is copied. | 69 // |extra_data|, otherwise the memory is copied. |
70 VideoDecoderConfig(VideoCodec codec, | 70 VideoDecoderConfig(VideoCodec codec, |
71 VideoCodecProfile profile, | 71 VideoCodecProfile profile, |
72 VideoFrame::Format format, | 72 VideoFrame::Format format, |
73 const gfx::Size& coded_size, | 73 const gfx::Size& coded_size, |
74 const gfx::Rect& visible_rect, | 74 const gfx::Rect& visible_rect, |
75 int frame_rate_numerator, int frame_rate_denominator, | |
76 int aspect_ratio_numerator, int aspect_ratio_denominator, | 75 int aspect_ratio_numerator, int aspect_ratio_denominator, |
77 const uint8* extra_data, size_t extra_data_size); | 76 const uint8* extra_data, size_t extra_data_size); |
78 | 77 |
79 ~VideoDecoderConfig(); | 78 ~VideoDecoderConfig(); |
80 | 79 |
81 // Resets the internal state of this object. | 80 // Resets the internal state of this object. |
82 void Initialize(VideoCodec codec, | 81 void Initialize(VideoCodec codec, |
83 VideoCodecProfile profile, | 82 VideoCodecProfile profile, |
84 VideoFrame::Format format, | 83 VideoFrame::Format format, |
85 const gfx::Size& coded_size, | 84 const gfx::Size& coded_size, |
86 const gfx::Rect& visible_rect, | 85 const gfx::Rect& visible_rect, |
87 int frame_rate_numerator, int frame_rate_denominator, | |
88 int aspect_ratio_numerator, int aspect_ratio_denominator, | 86 int aspect_ratio_numerator, int aspect_ratio_denominator, |
89 const uint8* extra_data, size_t extra_data_size, | 87 const uint8* extra_data, size_t extra_data_size, |
90 bool record_stats); | 88 bool record_stats); |
91 | 89 |
92 // Deep copies |video_config|. | 90 // Deep copies |video_config|. |
93 void CopyFrom(const VideoDecoderConfig& video_config); | 91 void CopyFrom(const VideoDecoderConfig& video_config); |
94 | 92 |
95 // Returns true if this object has appropriate configuration values, false | 93 // Returns true if this object has appropriate configuration values, false |
96 // otherwise. | 94 // otherwise. |
97 bool IsValidConfig() const; | 95 bool IsValidConfig() const; |
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114 // in this region are valid. | 112 // in this region are valid. |
115 gfx::Size coded_size() const; | 113 gfx::Size coded_size() const; |
116 | 114 |
117 // Region of |coded_size_| that is visible. | 115 // Region of |coded_size_| that is visible. |
118 gfx::Rect visible_rect() const; | 116 gfx::Rect visible_rect() const; |
119 | 117 |
120 // Final visible width and height of a video frame with aspect ratio taken | 118 // Final visible width and height of a video frame with aspect ratio taken |
121 // into account. | 119 // into account. |
122 gfx::Size natural_size() const; | 120 gfx::Size natural_size() const; |
123 | 121 |
124 // Frame rate in seconds expressed as a fraction. | |
125 // | |
126 // This information is required to properly timestamp video frames for | |
127 // codecs that contain repeated frames, such as found in H.264's | |
128 // supplemental enhancement information. | |
129 int frame_rate_numerator() const; | |
130 int frame_rate_denominator() const; | |
131 | |
132 // Aspect ratio of the decoded video frame expressed as a fraction. | 122 // Aspect ratio of the decoded video frame expressed as a fraction. |
133 // | 123 // |
134 // TODO(scherkus): think of a better way to avoid having video decoders | 124 // TODO(scherkus): think of a better way to avoid having video decoders |
135 // handle tricky aspect ratio dimension calculations. | 125 // handle tricky aspect ratio dimension calculations. |
136 int aspect_ratio_numerator() const; | 126 int aspect_ratio_numerator() const; |
137 int aspect_ratio_denominator() const; | 127 int aspect_ratio_denominator() const; |
138 | 128 |
139 // Optional byte data required to initialize video decoders, such as H.264 | 129 // Optional byte data required to initialize video decoders, such as H.264 |
140 // AAVC data. | 130 // AAVC data. |
141 uint8* extra_data() const; | 131 uint8* extra_data() const; |
142 size_t extra_data_size() const; | 132 size_t extra_data_size() const; |
143 | 133 |
144 private: | 134 private: |
145 VideoCodec codec_; | 135 VideoCodec codec_; |
146 VideoCodecProfile profile_; | 136 VideoCodecProfile profile_; |
147 | 137 |
148 VideoFrame::Format format_; | 138 VideoFrame::Format format_; |
149 | 139 |
150 gfx::Size coded_size_; | 140 gfx::Size coded_size_; |
151 gfx::Rect visible_rect_; | 141 gfx::Rect visible_rect_; |
152 gfx::Size natural_size_; | 142 gfx::Size natural_size_; |
153 | 143 |
154 int frame_rate_numerator_; | |
155 int frame_rate_denominator_; | |
156 | |
157 int aspect_ratio_numerator_; | 144 int aspect_ratio_numerator_; |
158 int aspect_ratio_denominator_; | 145 int aspect_ratio_denominator_; |
159 | 146 |
160 scoped_array<uint8> extra_data_; | 147 scoped_array<uint8> extra_data_; |
161 size_t extra_data_size_; | 148 size_t extra_data_size_; |
162 | 149 |
163 DISALLOW_COPY_AND_ASSIGN(VideoDecoderConfig); | 150 DISALLOW_COPY_AND_ASSIGN(VideoDecoderConfig); |
164 }; | 151 }; |
165 | 152 |
166 } // namespace media | 153 } // namespace media |
167 | 154 |
168 #endif // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ | 155 #endif // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_ |
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