36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
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#include "FLVStreamHeader.h"
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#include "FLVUtil.h"
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/*
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(c) 2006 Nullsoft, Inc.
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Author: Ben Allison benski@nullsoft.com
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*/
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/*
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PreviousTagSize - uint32 - total size of previous tag, presumably for stream continuity checking. big endian
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Type - uint8 - what does this frame contain? 0x12=meta, 0x8=audio, 0x9=video
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BodyLength - uint24 - size of the data following this header. big endian
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Timestamp - uint24 - timestamp (milliseconds). big endian
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Timestamp High - uint8 - high 8 bits of timestamp (to form 32bit timestamp)
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Stream ID - uint24 - always zero
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*/
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bool FLVStreamHeader::Read(uint8_t *data, size_t size)
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{
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if (size < 15)
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return false; // header size too small
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previousSize = FLV::Read32(&data[0]);
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type = data[4];
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dataSize = FLV::Read24(&data[5]);
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timestamp = FLV::Read24(&data[8]);
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uint8_t timestampHigh = FLV::Read8(&data[11]);
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timestamp |= (timestampHigh << 24);
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streamID = FLV::Read24(&data[12]);
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if (streamID != 0)
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return false;
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return true;
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}
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