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| <html> |
| <head> |
| <title>áèáëèîòåêà äëÿ ïîëó÷åíèÿ èíôîðìàöèè èç ôîðìàòà Exif</title> |
| <meta http-equiv="content-type" content="text/html; charset=WINDOWS-1251"> |
| <style> |
| body |
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| font-size: 15px; |
| font-family: "Bookman Old Style"; |
| color: black; |
| text-align: justify; |
| } |
| h1 { color: green; font-size: 23px; } |
| h2 { color: green; font-size: 21px; } |
| h3 { color: green; font-size: 19px; } |
| h4 { color: #803f00; font-size: 17px; } |
| i { color: #0099cc; } |
| b { color: #0099cc; } |
| p { |
| text-indent: 1em; |
| margin-top: 3px; |
| margin-bottom: 2px; |
| margin-left: 0px; |
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| ol, ul, dl{ |
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| padding-left: 20px; |
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| margin-left: 0px; |
| margin-right: 0px; |
| font-family: "Courier New"; |
| font-size: 15px; |
| color: #004000; |
| background-color: #ffd0ff; |
| } |
| table { font-size: 15px; } |
| </style> |
| </head> |
| |
| <body> |
| |
| <h1>Îãëàâëåíèå</h1> |
| <ul> |
| <li>Âñòóïëåíèå</li> |
| <li><a href="#fun">Ôóíêöèè</a></li> |
| <ul> |
| <li><a href="#f_1">exif_get_app1</a></li> |
| <li><a href="#f_2">exif_get_app1_tag</a></li> |
| <li><a href="#f_3">exif_get_app1_child</a></li> |
| |
| </ul> |
| </li> |
| <li><a href="#const">Êîíñòàíòû äëÿ ôóíêöèè exif_get_app1_child</a></li> |
| <li><a href="#tabl_e">Òàáëèöà ýêñïîðòà</a></li> |
| <li><a href="#hist">Èñòîðèÿ</a></li> |
| </ul> |
| |
| <h1>Âñòóïëåíèå</h1> |
| <p>Äîêóìåíòàöèÿ ê ñâîáîäíîé áèáëèîòåêå <b>exif.obj</b>, äëÿ <b>ÎÑ Êîëèáðè</b>. |
| Ýòà áèáëèîòåêà ñîçäàíà äëÿ ïðîñìîòðà èíôîðìàöèè íàõîäÿùåéñÿ â èçîáðàæåíèÿõ â ôîðìàòå Exif. Èíôîðìàöèÿ ýòà ñîçäàåòñÿ öèôðîâûìè ôîòîêàìåðàìè è ñîäåðæèò ðàçíûå ïàðàìåòðû íàïðèìåð òàêèå êàê: íàçâàíèå ôèðìû ïðîèçâîäèòåëÿ, ìîäåëü êàìåðû, è ò.ä.</p> |
| |
| <p>Ïîñëåäíåå îáíîâëåíèå áèáëèîòåêè 18.07.14.</p> |
| |
| <h1><a name="fun">Ôóíêöèè</a></h1> |
| |
| <p>Ôóíêöèè ðàáîòàþò ñ óêàçàòåëÿìè íà ñòðóêòóðû app1 èëè íà app1_child. Ïðèìåð ñòðóêòóðû:</p> |
| <pre>align 4 |
| h_app1: |
| dd 0 ;+0 óêàçàòåëü íà êîëè÷åñòâî òåãîâ è íà ñàìè òåãè |
| dd 0 ;+4 ñìåùåíèå äîáàâëÿåìîå ê óêàçàòåëÿì â òåãàõ |
| dd 0 ;+8 ïàðàìåòð, îòâå÷àþùèé çà ïîðÿäîê ñëåäîâàíèÿ áàéòîâ</pre> |
| |
| <h4><a name="f_1">exif_get_app1</a></h4> |
| <p>Ýòà ôóíêöèÿ èùåò íà÷àëî Exif äàííûõ. Åñëè îíè íàéäåíû òî çàïîëíÿåòñÿ ñòðóêòóðà app1. Åñëè íå íàéäåíû, òî ïåðâûé ïàðàìåòð â ñòðóêòóðå äåëàåòñÿ ðàâíûì 0. Ïðèìåð:</p> |
| <pre>stdcall [exif_get_app1], [open_file],h_app1 |
| ... |
| h_app1 dd 0,0,0</pre> |
| <p>ãäå open_file - óêàçàòåëü íà äàííûå ôàéëà èçîáðàæåíèÿ (ïîêà ïîääåðæèâàþòñÿ òîëüêî *.jpg è *.jpeg).</p> |
| <p>h_app1 - ñòðóêòóðà äëÿ çàïîìèíàíèÿ íà÷àëà Exif äàííûõ.</p> |
| |
| <h4><a name="f_2">exif_get_app1_tag</a></h4> |
| <p>Çàïîëíÿåò òåêñòîâóþ ñòðîêó èìåíåì ïàðàìåòðà èç Exif è åãî çíà÷åíèåì. Ïðèìåð:</p> |
| <pre>stdcall [exif_get_app1_tag], h_app1,3,txt_buf,80 |
| ... |
| h_app1 dd 0,0,0 |
| txt_buf rb 80</pre> |
| <p>ãäå h_app1 - ñòðóêòóðà çàïîëåííàÿ â exif_get_app1 èëè â exif_get_app1_child.</p> |
| <p>3 - ïîðÿäêîâûé íîìåð ïàðàìåòðà.</p> |
| <p>txt_buf - òåêñòîâûé áóôåð äëÿ çàïîëíåíèÿ.</p> |
| <p>80 - ìàêñèìàëüíàÿ äëèíà òåêñòà.</p> |
| |
| <h4><a name="f_3">exif_get_app1_child</a></h4> |
| <p>Åñòü ïðîñòûå òåãè ñ èíôîðìàöèåé à åñòü òåãè óêàçûâàþùèå íà ñïèñêè äðóãèõ òåãîâ. Ýòà ôóíêöèÿ áåðåò óêàçàòåëü íà íà÷àëî ñïèñêà äî÷åðíèõ òåãîâ. Ïðèìåð:</p> |
| <pre>stdcall [exif_get_app1_child], h_app1,h_child,0x8769 |
| ... |
| h_app1 dd 0,0,0 |
| h_child dd 0,0,0</pre> |
| <p>ãäå h_app1 - ñòðóêòóðà çàïîëåííàÿ â exif_get_app1 èëè â exif_get_app1_child.</p> |
| <p>h_child - ñòðóêòóðà äëÿ çàïîëåíèÿ äàííûõ ñïèñêà äî÷åðíèõ òåãîâ.</p> |
| <p>0x8769 - êîä òåãà (íàõîäÿùåãîñÿ â ñïèñêå òåãîâ h_app1), êîòîðûé ÿâëÿåòñÿ óêàçàòåëåì íà ñïèñîê äðóãèõ äî÷åðíèõ òåãîâ.</p> |
| <p> äàíîì ïðèìåðå ôóíêöèÿ áåðåò òåã 0x8769 è ïûòàåòñÿ íàéòè åãî â ñïèñêå h_app1, åñëè íàõîäèò òî çàïîëíÿåò ïî íåìó çíà÷åíèÿ â ñòðóêòóðå h_child. Äàëåå ê ñïèñêó h_child ìîæíî ïðèìåíÿòü ôóíêöèþ exif_get_app1_tag äëÿ âçÿòèÿ çíà÷åíèÿ ýòèõ òåãîâ. Ñ ïîìîùüþ ýòîé ôóíêöèè ìû êàê áû ïåðåõîäèì âíóòðü íåêîé "ïàïêè" ñ òåãàìè, êîòîðûå ñðàçó äîñòàòü íå ìîæåì.</p> |
| |
| <h1><a name="const">Êîíñòàíòû äëÿ ôóíêöèè exif_get_app1_child</a></h1> |
| <p>Çäåñü ïðèâåäåíû íåêîòîðûå êîíñòàíòû, êîòîðûå ìîãóò èñïîëüçîâàòñÿ êàê 3-é ïàðàìåòð äëÿ ôóíêöèè exif_get_app1_child. Ýòè êîíñòàíòû îáîçíà÷àþò ñïåöèàëüíûå òåãè, êîòîðûå ñîäåðæàò ñìåùåíèå íà äî÷åðíèå ïàðàìåòðû, êîòîðûå íàõîäÿòñÿ â Exif.</p> |
| <h4>0x8769</h4> |
| <p>Îáîçíà÷àåò äîïîëíèòåëüíûå ïàðàìåòðû Exif.</p> |
| <h4>0x8825</h4> |
| <p>Îáîçíà÷àåò ïàðàìåòðû GPS.</p> |
| |
| <h1><a name="tabl_e">Òàáëèöà ýêñïîðòà</a></h1> |
| <p>Ïðèìåð òàáëèöû ýêñïîðòà, ðàñ÷èòàííîé íà èñïîëüçîâàíèå ìàêðîñà <b>@use_library_mem</b>:</p> |
| <pre>align 4 |
| import_exif: |
| exif_get_app1 dd sz_exif_get_app1 |
| exif_get_app1_tag dd sz_exif_get_app1_tag |
| exif_get_app1_child dd sz_exif_get_app1_child |
| dd 0,0 |
| sz_exif_get_app1 db 'exif_get_app1',0 |
| sz_exif_get_app1_tag db 'exif_get_app1_tag',0 |
| sz_exif_get_app1_child db 'exif_get_app1_child',0</pre> |
| |
| <h1><a name="hist">Èñòîðèÿ</a></h1> |
| <p>15.07.14 - ïåðâàÿ âåðñèÿ áèáëèîòåêè, ïðèìåð èñïîëüçîâàíèÿ.</p> |
| </body> |
| </html> |