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	* defer lock reader * close readers when finished with them * close the reader in the teereader when finished
		
			
				
	
	
		
			77 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /*
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|    GoToSocial
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|    Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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| 
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|    This program is free software: you can redistribute it and/or modify
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|    it under the terms of the GNU Affero General Public License as published by
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|    the Free Software Foundation, either version 3 of the License, or
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|    (at your option) any later version.
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| 
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|    This program is distributed in the hope that it will be useful,
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|    but WITHOUT ANY WARRANTY; without even the implied warranty of
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|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|    GNU Affero General Public License for more details.
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| 
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|    You should have received a copy of the GNU Affero General Public License
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|    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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| */
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| 
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| package media
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| 
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| import (
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| 	"fmt"
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| 	"io"
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| 	"strconv"
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| 	"strings"
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| )
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| 
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| func parseFocus(focus string) (focusx, focusy float32, err error) {
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| 	if focus == "" {
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| 		return
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| 	}
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| 	spl := strings.Split(focus, ",")
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| 	if len(spl) != 2 {
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| 		err = fmt.Errorf("improperly formatted focus %s", focus)
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| 		return
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| 	}
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| 	xStr := spl[0]
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| 	yStr := spl[1]
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| 	if xStr == "" || yStr == "" {
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| 		err = fmt.Errorf("improperly formatted focus %s", focus)
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| 		return
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| 	}
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| 	fx, err := strconv.ParseFloat(xStr, 32)
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| 	if err != nil {
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| 		err = fmt.Errorf("improperly formatted focus %s: %s", focus, err)
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| 		return
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| 	}
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| 	if fx > 1 || fx < -1 {
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| 		err = fmt.Errorf("improperly formatted focus %s", focus)
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| 		return
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| 	}
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| 	focusx = float32(fx)
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| 	fy, err := strconv.ParseFloat(yStr, 32)
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| 	if err != nil {
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| 		err = fmt.Errorf("improperly formatted focus %s: %s", focus, err)
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| 		return
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| 	}
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| 	if fy > 1 || fy < -1 {
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| 		err = fmt.Errorf("improperly formatted focus %s", focus)
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| 		return
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| 	}
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| 	focusy = float32(fy)
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| 	return
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| }
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| 
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| type teeReadCloser struct {
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| 	teeReader io.Reader
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| 	close     func() error
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| }
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| 
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| func (t teeReadCloser) Read(p []byte) (n int, err error) {
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| 	return t.teeReader.Read(p)
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| }
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| 
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| func (t teeReadCloser) Close() error {
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| 	return t.close()
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| }
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