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71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
// Copyright 2019, 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 logic
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import (
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"github.com/q191201771/lal/pkg/httpflv"
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"github.com/q191201771/lal/pkg/rtmp"
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)
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var Trans trans
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type trans struct {
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}
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func (t trans) FLVTagHeader2RTMPHeader(in httpflv.TagHeader) (out rtmp.Header) {
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out.MsgLen = in.DataSize
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out.MsgTypeID = in.Type
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out.MsgStreamID = rtmp.MSID1
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switch in.Type {
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case httpflv.TagTypeMetadata:
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out.CSID = rtmp.CSIDAMF
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case httpflv.TagTypeAudio:
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out.CSID = rtmp.CSIDAudio
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case httpflv.TagTypeVideo:
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out.CSID = rtmp.CSIDVideo
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}
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out.Timestamp = in.Timestamp
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out.TimestampAbs = in.Timestamp
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return
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}
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func (t trans) MakeDefaultRTMPHeader(in rtmp.Header) (out rtmp.Header) {
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out.MsgLen = in.MsgLen
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out.Timestamp = in.Timestamp
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out.TimestampAbs = in.TimestampAbs
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out.MsgTypeID = in.MsgTypeID
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out.MsgStreamID = rtmp.MSID1
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switch in.MsgTypeID {
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case rtmp.TypeidDataMessageAMF0:
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out.CSID = rtmp.CSIDAMF
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case rtmp.TypeidAudio:
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out.CSID = rtmp.CSIDAudio
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case rtmp.TypeidVideo:
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out.CSID = rtmp.CSIDVideo
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}
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return
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}
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// 音视频内存块不发生拷贝
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func (t trans) FLVTag2RTMPMsg(tag httpflv.Tag) (msg rtmp.AVMsg) {
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msg.Header = t.FLVTagHeader2RTMPHeader(tag.Header)
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msg.Payload = tag.Raw[11 : 11+msg.Header.MsgLen]
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return
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}
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// 音视频内存块发生拷贝
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func (t trans) RTMPMsg2FLVTag(msg rtmp.AVMsg) *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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