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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 SERVICES_MEDIA_FRAMEWORK_PACKET_H_ | 5 #ifndef SERVICES_MEDIA_FRAMEWORK_PACKET_H_ |
| 6 #define SERVICES_MEDIA_FRAMEWORK_PACKET_H_ | 6 #define SERVICES_MEDIA_FRAMEWORK_PACKET_H_ |
| 7 | 7 |
| 8 #include <limits> | 8 #include <limits> |
| 9 #include <memory> | 9 #include <memory> |
| 10 | 10 |
| (...skipping 18 matching lines...) Expand all Loading... |
| 29 // no special behavior. | 29 // no special behavior. |
| 30 // TODO(dalesat): Revisit this definition: | 30 // TODO(dalesat): Revisit this definition: |
| 31 // 1) We probably need an extensible way to add metadata to packets. | 31 // 1) We probably need an extensible way to add metadata to packets. |
| 32 // 2) The relationship to the allocator could be clearer. | 32 // 2) The relationship to the allocator could be clearer. |
| 33 class Packet { | 33 class Packet { |
| 34 public: | 34 public: |
| 35 static const int64_t kUnknownPts = std::numeric_limits<int64_t>::min(); | 35 static const int64_t kUnknownPts = std::numeric_limits<int64_t>::min(); |
| 36 | 36 |
| 37 // Creates a packet. If size is 0, payload must be nullptr and vice-versa. | 37 // Creates a packet. If size is 0, payload must be nullptr and vice-versa. |
| 38 // If payload is not nullptr, an allocator must be provided. | 38 // If payload is not nullptr, an allocator must be provided. |
| 39 static PacketPtr Create( | 39 static PacketPtr Create(int64_t pts, |
| 40 int64_t pts, | 40 bool end_of_stream, |
| 41 bool end_of_stream, | 41 size_t size, |
| 42 size_t size, | 42 void* payload, |
| 43 void* payload, | 43 PayloadAllocator* allocator); |
| 44 PayloadAllocator* allocator); | |
| 45 | 44 |
| 46 // Creates a packet. If size is 0, payload must be nullptr and vice-versa. | 45 // Creates a packet. If size is 0, payload must be nullptr and vice-versa. |
| 47 // No allocator is provided, and the payload will not be released when the | 46 // No allocator is provided, and the payload will not be released when the |
| 48 // packet is released. | 47 // packet is released. |
| 49 static PacketPtr CreateNoAllocator( | 48 static PacketPtr CreateNoAllocator(int64_t pts, |
| 50 int64_t pts, | 49 bool end_of_stream, |
| 51 bool end_of_stream, | 50 size_t size, |
| 52 size_t size, | 51 void* payload); |
| 53 void* payload); | |
| 54 | 52 |
| 55 // Creates an end-of-stream packet with no payload. | 53 // Creates an end-of-stream packet with no payload. |
| 56 static PacketPtr CreateEndOfStream(int64_t pts); | 54 static PacketPtr CreateEndOfStream(int64_t pts); |
| 57 | 55 |
| 58 int64_t pts() const { return pts_; } | 56 int64_t pts() const { return pts_; } |
| 59 | 57 |
| 60 bool end_of_stream() const { return end_of_stream_; } | 58 bool end_of_stream() const { return end_of_stream_; } |
| 61 | 59 |
| 62 size_t size() const { return size_; } | 60 size_t size() const { return size_; } |
| 63 | 61 |
| 64 void* payload() const { return payload_; } | 62 void* payload() const { return payload_; } |
| 65 | 63 |
| 66 protected: | 64 protected: |
| 67 Packet( | 65 Packet(int64_t pts, bool end_of_stream, size_t size, void* payload); |
| 68 int64_t pts, | |
| 69 bool end_of_stream, | |
| 70 size_t size, | |
| 71 void* payload); | |
| 72 | 66 |
| 73 virtual ~Packet() {} | 67 virtual ~Packet() {} |
| 74 | 68 |
| 75 virtual void Release() = 0; | 69 virtual void Release() = 0; |
| 76 | 70 |
| 77 private: | 71 private: |
| 78 int64_t pts_; | 72 int64_t pts_; |
| 79 bool end_of_stream_; | 73 bool end_of_stream_; |
| 80 size_t size_; | 74 size_t size_; |
| 81 void* payload_; | 75 void* payload_; |
| 82 | 76 |
| 83 friend PacketDeleter; | 77 friend PacketDeleter; |
| 84 }; | 78 }; |
| 85 | 79 |
| 86 inline void PacketDeleter::operator()(Packet* ptr) const { | 80 inline void PacketDeleter::operator()(Packet* ptr) const { |
| 87 DCHECK(ptr); | 81 DCHECK(ptr); |
| 88 ptr->Release(); | 82 ptr->Release(); |
| 89 } | 83 } |
| 90 | 84 |
| 91 } // namespace media | 85 } // namespace media |
| 92 } // namespace mojo | 86 } // namespace mojo |
| 93 | 87 |
| 94 #endif // SERVICES_MEDIA_FRAMEWORK_PACKET_H_ | 88 #endif // SERVICES_MEDIA_FRAMEWORK_PACKET_H_ |
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