зеркало из https://github.com/mozilla/gecko-dev.git
42 строки
1.1 KiB
C
42 строки
1.1 KiB
C
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef BIT_WRITER_H_
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#define BIT_WRITER_H_
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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class MediaByteBuffer;
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class BitWriter {
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public:
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explicit BitWriter(MediaByteBuffer* aBuffer);
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virtual ~BitWriter();
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void WriteBits(uint64_t aValue, size_t aBits);
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void WriteBit(bool aValue) { WriteBits(aValue, 1); }
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void WriteU8(uint8_t aValue) { WriteBits(aValue, 8); }
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void WriteU32(uint32_t aValue) { WriteBits(aValue, 32); }
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void WriteU64(uint64_t aValue) { WriteBits(aValue, 64); }
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// Write unsigned integer into Exp-Golomb-coded. 2^32-2 at most
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void WriteUE(uint32_t aValue);
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// Write RBSP trailing bits.
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void CloseWithRbspTrailing();
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// Return the number of bits written so far;
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size_t BitCount() const { return mPosition * 8 + mBitIndex; }
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private:
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RefPtr<MediaByteBuffer> mBuffer;
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size_t mPosition = 0;
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uint8_t mBitIndex = 0;
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};
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} // namespace mozilla
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#endif // BIT_WRITER_H_
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