Alexey Khit
41 lines
937 B
Go
41 lines
937 B
Go
// Package h265 - MPEG4 format related functions
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package h265
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import "encoding/binary"
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func EncodeConfig(vps, sps, pps []byte) []byte {
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vpsSize := uint16(len(vps))
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spsSize := uint16(len(sps))
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ppsSize := uint16(len(pps))
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buf := make([]byte, 23+5+vpsSize+5+spsSize+5+ppsSize)
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buf[0] = 1
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copy(buf[1:], sps[3:6]) // profile
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buf[21] = 3 // ?
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buf[22] = 3 // ?
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b := buf[23:]
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_ = b[5]
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b[0] = (vps[0] >> 1) & 0x3F
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binary.BigEndian.PutUint16(b[1:], 1) // VPS count
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binary.BigEndian.PutUint16(b[3:], vpsSize)
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copy(b[5:], vps)
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b = buf[23+5+vpsSize:]
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_ = b[5]
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b[0] = (sps[0] >> 1) & 0x3F
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binary.BigEndian.PutUint16(b[1:], 1) // SPS count
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binary.BigEndian.PutUint16(b[3:], spsSize)
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copy(b[5:], sps)
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b = buf[23+5+vpsSize+5+spsSize:]
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_ = b[5]
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b[0] = (pps[0] >> 1) & 0x3F
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binary.BigEndian.PutUint16(b[1:], 1) // PPS count
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binary.BigEndian.PutUint16(b[3:], ppsSize)
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copy(b[5:], pps)
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return buf
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}
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