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60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
// Copyright 2020, Chef. All rights reserved.
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// https://github.com/q191201771/lal
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//
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// Use of this source code is governed by a MIT-style license
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// that can be found in the License file.
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//
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// Author: Chef (191201771@qq.com)
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package remux
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import (
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"github.com/q191201771/lal/pkg/base"
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"github.com/q191201771/lal/pkg/httpflv"
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"github.com/q191201771/lal/pkg/rtmp"
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"github.com/q191201771/naza/pkg/nazalog"
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)
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// RtmpMsg2FlvTag @return 返回的内存块为新申请的独立内存块
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func RtmpMsg2FlvTag(msg base.RtmpMsg) *httpflv.Tag {
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var tag httpflv.Tag
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tag.Header.Type = msg.Header.MsgTypeId
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tag.Header.DataSize = msg.Header.MsgLen
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tag.Header.Timestamp = msg.Header.TimestampAbs
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tag.Raw = httpflv.PackHttpflvTag(msg.Header.MsgTypeId, msg.Header.TimestampAbs, msg.Payload)
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return &tag
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}
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// -------------------------------------------------------------------------------------------------------------------
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// LazyRtmpMsg2FlvTag 在必要时，有且仅有一次做转换操作
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//
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type LazyRtmpMsg2FlvTag struct {
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msg base.RtmpMsg
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//tagWithSdf []byte
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tagWithoutSdf []byte
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}
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func (l *LazyRtmpMsg2FlvTag) Init(msg base.RtmpMsg) {
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l.msg = msg
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}
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func (l *LazyRtmpMsg2FlvTag) GetEnsureWithSdf() []byte {
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// TODO(chef): [refactor] 这个函数目前没有实际用途 202207
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nazalog.Errorf("LazyRtmpMsg2FlvTag::GetEnsureWithSdf() is not implemented")
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return l.GetEnsureWithoutSdf()
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}
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func (l *LazyRtmpMsg2FlvTag) GetEnsureWithoutSdf() []byte {
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if l.tagWithoutSdf == nil {
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if l.msg.Header.MsgTypeId == base.RtmpTypeIdMetadata {
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msg2 := l.msg.Clone()
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msg2.Payload, _ = rtmp.MetadataEnsureWithoutSdf(msg2.Payload)
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l.tagWithoutSdf = RtmpMsg2FlvTag(msg2).Raw
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} else {
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l.tagWithoutSdf = RtmpMsg2FlvTag(l.msg).Raw
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}
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}
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return l.tagWithoutSdf
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}
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