53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_H264_BITSTREAM_BUILDER_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_H264_BITSTREAM_BUILDER_H_
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#include "typedefs.h"
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namespace webrtc {
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class BitstreamBuilder
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{
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public:
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BitstreamBuilder(WebRtc_UWord8* data, const WebRtc_UWord32 dataSize);
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WebRtc_UWord32 Length() const;
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WebRtc_Word32 Add1Bit(const WebRtc_UWord8 bit);
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WebRtc_Word32 Add2Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add3Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add4Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add5Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add6Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add7Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add8Bits(const WebRtc_UWord8 bits);
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WebRtc_Word32 Add16Bits(const WebRtc_UWord16 bits);
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WebRtc_Word32 Add24Bits(const WebRtc_UWord32 bits);
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WebRtc_Word32 Add32Bits(const WebRtc_UWord32 bits);
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// Exp-Golomb codes
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WebRtc_Word32 AddUE(const WebRtc_UWord32 value);
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private:
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WebRtc_Word32 AddPrefix(const WebRtc_UWord8 numZeros);
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void AddSuffix(const WebRtc_UWord8 numBits, const WebRtc_UWord32 rest);
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void Add1BitWithoutSanity(const WebRtc_UWord8 bit);
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WebRtc_UWord8* _data;
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WebRtc_UWord32 _dataSize;
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WebRtc_UWord32 _byteOffset;
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WebRtc_UWord8 _bitOffset;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_H264_BITSTREAM_BUILDER_H_
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