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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_BITSTREAM_BUFFER_H_ | 5 #ifndef MEDIA_BASE_BITSTREAM_BUFFER_H_ |
| 6 #define MEDIA_BASE_BITSTREAM_BUFFER_H_ | 6 #define MEDIA_BASE_BITSTREAM_BUFFER_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/memory/shared_memory.h" | 8 #include "base/memory/shared_memory.h" |
| 10 #include "base/time/time.h" | 9 #include "base/time/time.h" |
| 11 #include "media/base/decrypt_config.h" | 10 #include "media/base/decrypt_config.h" |
| 12 #include "media/base/media_export.h" | 11 #include "media/base/media_export.h" |
| 13 #include "media/base/timestamp_constants.h" | 12 #include "media/base/timestamp_constants.h" |
| 14 | 13 |
| 15 namespace media { | 14 namespace media { |
| 16 | 15 |
| 17 // Class for passing bitstream buffers around. Does not take ownership of the | 16 // Class for passing bitstream buffers around. Does not take ownership of the |
| 18 // data. This is the media-namespace equivalent of PP_VideoBitstreamBuffer_Dev. | 17 // data. This is the media-namespace equivalent of PP_VideoBitstreamBuffer_Dev. |
| 19 class MEDIA_EXPORT BitstreamBuffer { | 18 class MEDIA_EXPORT BitstreamBuffer { |
| 20 public: | 19 public: |
| 21 BitstreamBuffer(int32 id, base::SharedMemoryHandle handle, size_t size); | 20 BitstreamBuffer(int32_t id, base::SharedMemoryHandle handle, size_t size); |
| 22 | 21 |
| 23 BitstreamBuffer(int32 id, | 22 BitstreamBuffer(int32_t id, |
| 24 base::SharedMemoryHandle handle, | 23 base::SharedMemoryHandle handle, |
| 25 size_t size, | 24 size_t size, |
| 26 base::TimeDelta presentation_timestamp); | 25 base::TimeDelta presentation_timestamp); |
| 27 | 26 |
| 28 ~BitstreamBuffer(); | 27 ~BitstreamBuffer(); |
| 29 | 28 |
| 30 void SetDecryptConfig(const DecryptConfig& decrypt_config); | 29 void SetDecryptConfig(const DecryptConfig& decrypt_config); |
| 31 | 30 |
| 32 int32 id() const { return id_; } | 31 int32_t id() const { return id_; } |
| 33 base::SharedMemoryHandle handle() const { return handle_; } | 32 base::SharedMemoryHandle handle() const { return handle_; } |
| 34 size_t size() const { return size_; } | 33 size_t size() const { return size_; } |
| 35 | 34 |
| 36 // The timestamp is only valid if it's not equal to |media::kNoTimestamp()|. | 35 // The timestamp is only valid if it's not equal to |media::kNoTimestamp()|. |
| 37 base::TimeDelta presentation_timestamp() const { | 36 base::TimeDelta presentation_timestamp() const { |
| 38 return presentation_timestamp_; | 37 return presentation_timestamp_; |
| 39 } | 38 } |
| 40 | 39 |
| 41 // The following methods come from DecryptConfig. | 40 // The following methods come from DecryptConfig. |
| 42 | 41 |
| 43 const std::string& key_id() const { return key_id_; } | 42 const std::string& key_id() const { return key_id_; } |
| 44 const std::string& iv() const { return iv_; } | 43 const std::string& iv() const { return iv_; } |
| 45 const std::vector<SubsampleEntry>& subsamples() const { return subsamples_; } | 44 const std::vector<SubsampleEntry>& subsamples() const { return subsamples_; } |
| 46 | 45 |
| 47 private: | 46 private: |
| 48 int32 id_; | 47 int32_t id_; |
| 49 base::SharedMemoryHandle handle_; | 48 base::SharedMemoryHandle handle_; |
| 50 size_t size_; | 49 size_t size_; |
| 51 | 50 |
| 52 // This is only set when necessary. For example, AndroidVideoDecodeAccelerator | 51 // This is only set when necessary. For example, AndroidVideoDecodeAccelerator |
| 53 // needs the timestamp because the underlying decoder may require it to | 52 // needs the timestamp because the underlying decoder may require it to |
| 54 // determine the output order. | 53 // determine the output order. |
| 55 base::TimeDelta presentation_timestamp_; | 54 base::TimeDelta presentation_timestamp_; |
| 56 | 55 |
| 57 // The following fields come from DecryptConfig. | 56 // The following fields come from DecryptConfig. |
| 58 // TODO(timav): Try to DISALLOW_COPY_AND_ASSIGN and include these params as | 57 // TODO(timav): Try to DISALLOW_COPY_AND_ASSIGN and include these params as |
| 59 // scoped_ptr<DecryptConfig> or explain why copy & assign is needed. | 58 // scoped_ptr<DecryptConfig> or explain why copy & assign is needed. |
| 60 | 59 |
| 61 std::string key_id_; // key ID. | 60 std::string key_id_; // key ID. |
| 62 std::string iv_; // initialization vector | 61 std::string iv_; // initialization vector |
| 63 std::vector<SubsampleEntry> subsamples_; // clear/cypher sizes | 62 std::vector<SubsampleEntry> subsamples_; // clear/cypher sizes |
| 64 | 63 |
| 65 // Allow compiler-generated copy & assign constructors. | 64 // Allow compiler-generated copy & assign constructors. |
| 66 }; | 65 }; |
| 67 | 66 |
| 68 } // namespace media | 67 } // namespace media |
| 69 | 68 |
| 70 #endif // MEDIA_BASE_BITSTREAM_BUFFER_H_ | 69 #endif // MEDIA_BASE_BITSTREAM_BUFFER_H_ |
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