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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_H_ | 5 #ifndef MEDIA_BASE_VIDEO_DECODER_H_ |
6 #define MEDIA_BASE_VIDEO_DECODER_H_ | 6 #define MEDIA_BASE_VIDEO_DECODER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
| 13 #include "media/base/decode_status.h" |
13 #include "media/base/media_export.h" | 14 #include "media/base/media_export.h" |
14 #include "media/base/pipeline_status.h" | 15 #include "media/base/pipeline_status.h" |
15 #include "ui/gfx/geometry/size.h" | 16 #include "ui/gfx/geometry/size.h" |
16 | 17 |
17 namespace media { | 18 namespace media { |
18 | 19 |
19 class CdmContext; | 20 class CdmContext; |
20 class DecoderBuffer; | 21 class DecoderBuffer; |
21 class VideoDecoderConfig; | 22 class VideoDecoderConfig; |
22 class VideoFrame; | 23 class VideoFrame; |
23 | 24 |
24 class MEDIA_EXPORT VideoDecoder { | 25 class MEDIA_EXPORT VideoDecoder { |
25 public: | 26 public: |
26 // Status codes for decode operations on VideoDecoder. | |
27 // TODO(rileya): Now that both AudioDecoder and VideoDecoder Status enums | |
28 // match, break them into a decoder_status.h. | |
29 enum Status { | |
30 kOk, // Everything went as planned. | |
31 kAborted, // Decode was aborted as a result of Reset() being called. | |
32 kDecodeError // Decoding error happened. | |
33 }; | |
34 | |
35 // Callback for VideoDecoder initialization. | 27 // Callback for VideoDecoder initialization. |
36 typedef base::Callback<void(bool success)> InitCB; | 28 typedef base::Callback<void(bool success)> InitCB; |
37 | 29 |
38 // Callback for VideoDecoder to return a decoded frame whenever it becomes | 30 // Callback for VideoDecoder to return a decoded frame whenever it becomes |
39 // available. Only non-EOS frames should be returned via this callback. | 31 // available. Only non-EOS frames should be returned via this callback. |
40 typedef base::Callback<void(const scoped_refptr<VideoFrame>&)> OutputCB; | 32 typedef base::Callback<void(const scoped_refptr<VideoFrame>&)> OutputCB; |
41 | 33 |
42 // Callback type for Decode(). Called after the decoder has completed decoding | 34 // Callback type for Decode(). Called after the decoder has completed decoding |
43 // corresponding DecoderBuffer, indicating that it's ready to accept another | 35 // corresponding DecoderBuffer, indicating that it's ready to accept another |
44 // buffer to decode. | 36 // buffer to decode. |
45 typedef base::Callback<void(Status status)> DecodeCB; | 37 typedef base::Callback<void(DecodeStatus)> DecodeCB; |
46 | 38 |
47 VideoDecoder(); | 39 VideoDecoder(); |
48 | 40 |
49 // Fires any pending callbacks, stops and destroys the decoder. | 41 // Fires any pending callbacks, stops and destroys the decoder. |
50 // Note: Since this is a destructor, |this| will be destroyed after this call. | 42 // Note: Since this is a destructor, |this| will be destroyed after this call. |
51 // Make sure the callbacks fired from this call doesn't post any task that | 43 // Make sure the callbacks fired from this call doesn't post any task that |
52 // depends on |this|. | 44 // depends on |this|. |
53 virtual ~VideoDecoder(); | 45 virtual ~VideoDecoder(); |
54 | 46 |
55 // Returns the name of the decoder for logging purpose. | 47 // Returns the name of the decoder for logging purpose. |
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120 // Returns maximum number of parallel decode requests. | 112 // Returns maximum number of parallel decode requests. |
121 virtual int GetMaxDecodeRequests() const; | 113 virtual int GetMaxDecodeRequests() const; |
122 | 114 |
123 private: | 115 private: |
124 DISALLOW_COPY_AND_ASSIGN(VideoDecoder); | 116 DISALLOW_COPY_AND_ASSIGN(VideoDecoder); |
125 }; | 117 }; |
126 | 118 |
127 } // namespace media | 119 } // namespace media |
128 | 120 |
129 #endif // MEDIA_BASE_VIDEO_DECODER_H_ | 121 #endif // MEDIA_BASE_VIDEO_DECODER_H_ |
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