BufferStream.h (1399B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 #ifndef BUFFER_STREAM_H_ 6 #define BUFFER_STREAM_H_ 7 8 #include "ByteStream.h" 9 #include "MediaResource.h" 10 #include "nsTArray.h" 11 12 namespace mozilla { 13 class MediaByteBuffer; 14 15 DDLoggedTypeDeclNameAndBase(BufferStream, ByteStream); 16 17 class BufferStream : public ByteStream, 18 public mozilla::DecoderDoctorLifeLogger<BufferStream> { 19 public: 20 /* BufferStream does not take ownership of aData nor does it make a copy. 21 * Therefore BufferStream shouldn't get used after aData is destroyed. 22 */ 23 BufferStream(); 24 explicit BufferStream(mozilla::MediaByteBuffer* aBuffer); 25 26 virtual nsresult ReadAt(int64_t aOffset, void* aData, size_t aLength, 27 size_t* aBytesRead) override; 28 virtual nsresult CachedReadAt(int64_t aOffset, void* aData, size_t aLength, 29 size_t* aBytesRead) override; 30 virtual bool Length(int64_t* aLength) override; 31 32 virtual void DiscardBefore(int64_t aOffset) override; 33 34 bool AppendBytes(const uint8_t* aData, size_t aLength); 35 36 mozilla::MediaByteRange GetByteRange(); 37 38 private: 39 ~BufferStream(); 40 int64_t mStartOffset; 41 RefPtr<mozilla::MediaByteBuffer> mData; 42 }; 43 } // namespace mozilla 44 45 #endif