mirror of https://bitbucket.org/ausocean/av.git
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
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/*
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NAME
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FLV.go
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DESCRIPTION
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See Readme.md
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AUTHORS
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Saxon A. Nelson-Milton <saxon@ausocean.org>
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LICENSE
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FLV.go is Copyright (C) 2017 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with revid in gpl.txt. If not, see [GNU licenses](http://www.gnu.org/licenses).
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*/
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package flv
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type VideoTag struct {
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TagType uint8
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DataSize uint32
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Timestamp uint32
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TimestampExtended uint32
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FrameType byte
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Codec byte
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PacketType byte
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CompositionTime uint32
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Data []byte
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PrevTagSize uint32
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}
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func (t *VideoTag) ToByteSlice() (output []byte) {
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output = make([]byte, 0, maxVideoTagSize)
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output = append(output, []byte{
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byte(t.TagType),
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byte(t.DataSize >> 16),
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byte(t.DataSize >> 8),
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byte(t.DataSize),
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byte(t.Timestamp >> 16),
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byte(t.Timestamp >> 8),
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byte(t.Timestamp),
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byte(t.TimestampExtended),
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0x00,
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0x00,
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0x00,
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0x00 | byte(t.FrameType<<4) | byte(t.Codec),
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t.PacketType,
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byte(t.CompositionTime >> 16),
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byte(t.CompositionTime >> 8),
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byte(t.CompositionTime),
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}...)
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output = append(output, t.Data...)
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output = append(output, []byte{
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byte(t.PrevTagSize >> 24),
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byte(t.PrevTagSize >> 16),
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byte(t.PrevTagSize >> 8),
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byte(t.PrevTagSize),
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}...)
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return
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}
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