d900e8bea8
BUG= R=mflodman@webrtc.org, tina.legrand@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1760006 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4293 4adac7df-926f-26a2-2b94-8c16560cd09d
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/*
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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 "webrtc/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(uint8_t* data, const uint32_t dataSize);
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uint32_t Length() const;
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int32_t Add1Bit(const uint8_t bit);
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int32_t Add2Bits(const uint8_t bits);
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int32_t Add3Bits(const uint8_t bits);
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int32_t Add4Bits(const uint8_t bits);
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int32_t Add5Bits(const uint8_t bits);
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int32_t Add6Bits(const uint8_t bits);
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int32_t Add7Bits(const uint8_t bits);
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int32_t Add8Bits(const uint8_t bits);
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int32_t Add16Bits(const uint16_t bits);
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int32_t Add24Bits(const uint32_t bits);
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int32_t Add32Bits(const uint32_t bits);
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// Exp-Golomb codes
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int32_t AddUE(const uint32_t value);
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private:
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int32_t AddPrefix(const uint8_t numZeros);
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void AddSuffix(const uint8_t numBits, const uint32_t rest);
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void Add1BitWithoutSanity(const uint8_t bit);
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uint8_t* _data;
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uint32_t _dataSize;
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uint32_t _byteOffset;
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uint8_t _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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