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48 lines
922 B
Go
48 lines
922 B
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 httpflv
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import (
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"os"
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)
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type FLVFileReader struct {
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fp *os.File
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hasReadFLVHeader bool
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}
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func (ffr *FLVFileReader) Open(filename string) (err error) {
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ffr.fp, err = os.Open(filename)
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return
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}
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func (ffr *FLVFileReader) ReadFLVHeader() ([]byte, error) {
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ffr.hasReadFLVHeader = true
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flvHeader := make([]byte, flvHeaderSize)
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_, err := ffr.fp.Read(flvHeader)
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return flvHeader, err
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}
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func (ffr *FLVFileReader) ReadTag() (Tag, error) {
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// lazy read flv header
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if !ffr.hasReadFLVHeader {
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_, _ = ffr.ReadFLVHeader()
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ffr.hasReadFLVHeader = true
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}
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return readTag(ffr.fp)
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}
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func (ffr *FLVFileReader) Dispose() {
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if ffr.fp != nil {
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_ = ffr.fp.Close()
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}
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}
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