— RU.COMPRESS
From : Alexey Minin 2:5010/159.7 14 Jun 99 16:49:01
To : All
Subj : Ìàññèâ ïîæàòü íóæíî
Äîáðûé äåíü , All!
Ñóáæ, ÷èñëà â í¸ì â èíòåðâàëå [0..99], òî åñòü äâóõçíà÷íûå.
Ñåé÷àñ äåëàþ òàê: â áàéòå èñïîëüçóþ 7 áèò, à èç âîñüìûõ ñîáèðàþ åù¸ îäî ñåìèáèò
íîå ÷èñëî. Hî èìõî ëó÷øå ìîæíî ñäåëàòü, ïëç ïîäñêàæèòå êàê.
ÇÛ ãëàâíîå íóæíî ÷òîáû ðåøåíèå áûëî ïðîñòîå.
Äî íîâûõ âñòðå÷ , Alexey.
--- GoldED/W32 3.00.Beta5+
* Origin: Êîí÷èë ìèìî - ãóëÿé ñìåëî... & (2:5010/159.7)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 15 Jun 99 21:15:27
To : Dmitry Belash
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Dmitry Belash wrote:
> >> Ïðàâäà, ÷òî êîäåð, êîòîðûé ñæèìàë áû _ëþáûå_ äàííûå äî ðàçìåðà,
> >> ïðàêòè÷åñêè íå îòëè÷àþùåãîñÿ îò èõ ýíòðîïèè (êîðî÷å, óäàëÿë áû âñþ
> >> èçáûòî÷íîñòü), íå ìîæåò ñóùåñòâîâàòü, à åñëè áû è ñóùåñòâîâàë, òî áûë
> >> áû áåñêîíå÷íî ñëîæåí è òðåáîâàë áû áåñêîíå÷íîãî âðåìåíè, è, âîçìîæíî,
> >> ðåñóðñîâ äëÿ ðàáîòû?
> LB> Êîíå÷íî. Âåäü â _ëþáûå_ äàííûå âõîäÿò äàííûå ëþáîé äëèíû.
>Çàáûë óïîìÿíóòü: äëèíà êîíå÷íàÿ, àëôàâèò òîæå.
Äëÿ ëþáîé êîíå÷íîé äëèíû íóæíî êîíå÷íîå (ïóñòü ýêñïîíåíöèàëüíî
çàâèñÿùåå îò äëèíû, íî âñå ðàâíî êîíå÷íîå) âðåìÿ.
> >> 2. Êàêîâà ýíòðîïèÿ ïîñëåäîâàòåëíîñòè, ïîëó÷åííîé ñ ïîìîùüþ RND?
> LB> Åñëè ýòî äàò÷èê ïñåâäîñëó÷àéíûõ ÷èñåë, òî îíà ðàâíà ýíòðîïèè
> LB> ïðîãðàììû, ðåàëèçóþùåé ýòîò äàò÷èê + ýíòðîïèè íà÷àëüíîãî ñîñòîÿíèÿ
> LB> äàò÷èêà (òàê íàç. Êîëìîãîðîâñêàÿ ñëîæíîñòü). Åñëè äàò÷èê îñíîâûâàåòñÿ
> LB> íà ôèçè÷åñêè ñëó÷àéíûõ ïðîöåññàõ, òî îíà ïðîïîðöèîíàëüíà äëèíå
> LB> ïîñëåäîâàòåëüíîñòè.
>À åñëè ìû äëÿ êîíå÷íîé ïîñëåäîâàòåëüíîñòè, ïîëó÷åííîé ñ ïîìîùüþ ôèçè÷åñêîãî
>äàò÷èêà, ñóìååì-òàêè íàéòè àëãîðèòì, ïðèâîäÿùèé ê òàêîé æå ïîñëåäîâàòåëüíîñòè,
>òî ó íèõ áóäåò îäèíàêîâàÿ ýíòðîïèÿ?
Äà, íó è ÷òî?
>ÇÛ. Ãäå áû ïî÷èòàòü ÷òî-íèáóäü ïî òåìå ýíòðîïèè è ò.ä. íà ðóññêîì (URL), à òî
>ïðàêòè÷åñêè ëàìåðîì ñåáÿ ÷óâñòâóþ. È ïðî ìàðêîâñêèé êîäåð òîæå.
Hå çíàþ.
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Dima Kirnocenskij 2:5020/1129.11 16 Jun 99 02:18:58
To : Anton Malykh
Subj : ADPCM
Hello Anton.
13 Jun 99 21:00, Anton Malykh wrote to Dima Kirnocenskij:
AM> Ñòpàííûé ADPCM, ïîñêîëüêó èìåííî àäàïòèâíîñòü íå ïpîñëåæèâàåòñÿ. Hå÷òî
Äà, äåéñòâèòåëüíî... ×òî-òî íåìíîãî íå òîãî. Hî òàáëèöû-òî òîæå ìîæíî ïî õîäó ä
åëà âûáèðàòü. Âîò :)
AM> ñëó÷àå MS ADPCM ýòî ïpîñòî ëèíåéíàÿ êîìáèíàöèÿ äâóõ ïpåäûäóùèõ îò÷¸òîâ
AM> ñ çàäàííûìè êîýôôèöèåíòàìè) çíà÷åíèåì è èñòèííûì.
À âîò ïî÷åìó ýòî íàçûâàåòñÿ ADPCM, ìíå íå ñîâñåì ïîíÿòíî. Õîòÿ ÿ âèäåë òàêóþ âà
ðèàöèþ íà ýòó òåìó - áåðåì äåéñòâèòåëüíî ëèíåéíóþ êîìáèíöèþ íåñêîëüêèõ ïðåäûäóù
èõ + (ìåòîä áëî÷íûé, ðàçìåð áëîêà íåâåëèê) çàäàåì äëÿ êàæäîãî áëîêà
1) âèä ëèíåéíîãî ïðåäñêàçàíèÿ.
2) òî÷íîñòü, ñ êîòîðîé êîäèðóåì ðàçíîñòü.
Âîò, êñòàòè, è âîïðîñ - êàê íàïèñàòü òàêîé êîäåð? (ò.å êàê âûáèðàòü âèä è òî÷íî
ñòü?)
 ìîåì ñëó÷àå (âðåìÿ ðàáîòû êîäåðà áûëî ñîâåðøåííî íåêðèòè÷íî, íó à äåêîäåð-òî
â ëþáîì ñëó÷àå ïèøåòñÿ ïðîñòî) âñå îáîøëîñü ìàëîé êðîâüþ - òàì êàê âàðèàíòîâ òî
÷íîñòè, òàê è âàðèàíòîâ ïðåäñêàçàíèÿ áûëî øòóê ïî 16, è ÿ ïðîñòî òóïî ïåðåáèðàë
âñå êîìáèíàöèè, ïîäáèðàÿ òó, ÷òî ëó÷øå âñåãî àïïðîêñèìèðóåò èñõîäíûé ïîòîê â í
îðìå, ñêàæåì, sqrt(sum(x[i]*x[i])).
Åñíî, ÷òî èçâðàò, à êàê ïî äðóãîìó ?
À âîò âòðîé ïîïàâøèéñÿ ìíå íà ãëàçà êîäåð ïîâåðã ìåíÿ â óæàñ -
òàì ýòà øòóêà, ðàáîòàÿ íà áëîêàõ â 0x140 áàéò ñæèìàëà êàæäûé òàêîé áëîê äî 0x14
áàéò. Âîò òàê, â 16 ðàç. È ïðè ýòîì êà÷åñòâî íå îñîáî ñèëüíî òåðÿëîñü. ×òî ýòî
çà àëãîðèòì ÿ íå ïîíÿë :(
Dima
... There are no unbeatable odds...
--- Îí, ðîäèìûé ...
* Origin: Óæå â ïÿòü ëåò îí óñòîé÷èâî ëåâèòèðîâàë ... (2:5020/1129.11)
— RU.COMPRESS
From : Dima Kirnocenskij 2:5020/1129.11 16 Jun 99 02:18:58
To : Anton Malykh
Subj : ADPCM
Hello Anton.
13 Jun 99 21:00, Anton Malykh wrote to Dima Kirnocenskij:
AM> Ñòpàííûé ADPCM, ïîñêîëüêó èìåííî àäàïòèâíîñòü íå ïpîñëåæèâàåòñÿ. Hå÷òî
Äà, äåéñòâèòåëüíî... ×òî-òî íåìíîãî íå òîãî. Hî òàáëèöû-òî òîæå ìîæíî ïî õîäó
äåëà âûáèðàòü. Âîò :)
AM> ñëó÷àå MS ADPCM ýòî ïpîñòî ëèíåéíàÿ êîìáèíàöèÿ äâóõ ïpåäûäóùèõ îò÷¸òîâ
AM> ñ çàäàííûìè êîýôôèöèåíòàìè) çíà÷åíèåì è èñòèííûì.
À âîò ïî÷åìó ýòî íàçûâàåòñÿ ADPCM, ìíå íå ñîâñåì ïîíÿòíî. Õîòÿ ÿ âèäåë òàêóþ
âàðèàöèþ íà ýòó òåìó - áåðåì äåéñòâèòåëüíî ëèíåéíóþ êîìáèíöèþ íåñêîëüêèõ
ïðåäûäóùèõ + (ìåòîä áëî÷íûé, ðàçìåð áëîêà íåâåëèê) çàäàåì äëÿ êàæäîãî áëîêà
1) âèä ëèíåéíîãî ïðåäñêàçàíèÿ.
2) òî÷íîñòü, ñ êîòîðîé êîäèðóåì ðàçíîñòü.
Âîò, êñòàòè, è âîïðîñ - êàê íàïèñàòü òàêîé êîäåð? (ò.å êàê âûáèðàòü âèä è
òî÷íîñòü?)
 ìîåì ñëó÷àå (âðåìÿ ðàáîòû êîäåðà áûëî ñîâåðøåííî íåêðèòè÷íî, íó à äåêîäåð-òî
â ëþáîì ñëó÷àå ïèøåòñÿ ïðîñòî) âñå îáîøëîñü ìàëîé êðîâüþ - òàì êàê âàðèàíòîâ
òî÷íîñòè, òàê è âàðèàíòîâ ïðåäñêàçàíèÿ áûëî øòóê ïî 16, è ÿ ïðîñòî òóïî
ïåðåáèðàë âñå êîìáèíàöèè, ïîäáèðàÿ òó, ÷òî ëó÷øå âñåãî àïïðîêñèìèðóåò èñõîäíûé
ïîòîê â íîðìå, ñêàæåì, sqrt(sum(x[i]*x[i])).
Åñíî, ÷òî èçâðàò, à êàê ïî äðóãîìó ?
À âîò âòðîé ïîïàâøèéñÿ ìíå íà ãëàçà êîäåð ïîâåðã ìåíÿ â óæàñ -
òàì ýòà øòóêà, ðàáîòàÿ íà áëîêàõ â 0x140 áàéò ñæèìàëà êàæäûé òàêîé áëîê äî 0x14
áàéò. Âîò òàê, â 16 ðàç. È ïðè ýòîì êà÷åñòâî íå îñîáî ñèëüíî òåðÿëîñü. ×òî ýòî
çà àëãîðèòì ÿ íå ïîíÿë :(
Dima
... There are no unbeatable odds...
--- Îí, ðîäèìûé ...
* Origin: Óæå â ïÿòü ëåò îí óñòîé÷èâî ëåâèòèðîâàë ... (2:5020/1129.11)
— RU.COMPRESS
From : Aleksei Pogorily 2:5020/1504 16 Jun 99 03:20:20
To : Leonid Broukhis
Subj : Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
Hi Leonid!
At âòîpíèê, 15 èþíÿ 1999, 21:15 Leonid Broukhis wrote to Dmitry Belash:
>> >> Ïðàâäà, ÷òî êîäåð, êîòîðûé ñæèìàë áû _ëþáûå_ äàííûå äî ðàçìåðà,
>> >> ïðàêòè÷åñêè íå îòëè÷àþùåãîñÿ îò èõ ýíòðîïèè (êîðî÷å, óäàëÿë áû âñþ
>> >> èçáûòî÷íîñòü), íå ìîæåò ñóùåñòâîâàòü, à åñëè áû è ñóùåñòâîâàë, òî áûë
>> >> áû áåñêîíå÷íî ñëîæåí è òðåáîâàë áû áåñêîíå÷íîãî âðåìåíè, è, âîçìîæíî,
>> >> ðåñóðñîâ äëÿ ðàáîòû?
>> LB> Êîíå÷íî. Âåäü â _ëþáûå_ äàííûå âõîäÿò äàííûå ëþáîé äëèíû.
>> Çàáûë óïîìÿíóòü: äëèíà êîíå÷íàÿ, àëôàâèò òîæå.
LB> Äëÿ ëþáîé êîíå÷íîé äëèíû íóæíî êîíå÷íîå (ïóñòü ýêñïîíåíöèàëüíî
LB> çàâèñÿùåå îò äëèíû, íî âñå ðàâíî êîíå÷íîå) âðåìÿ.
Êîíå÷íîå - äà (÷òî î÷åâèäíî, åñòü, íàïpèìåp, òàêîé çàâåäîìî êîíå÷íûé àëãîpèòì,
êàê ïîñòpîåíèå òàáëèö ïåpåêîäèpîâêè ïpÿìûì ïåpåáîpîì), íî, ñêîpåå âñåãî, çíà÷èò
åëüíî ïpåâûøàþùåå âîçpàñò âñåëåííîé ïpè èñïîëüçîâàíèè âñåõ èìåþùèõñÿ íà Çåìëå â
û÷èñëèòåëüíûõ påñópñîâ ïpè íå ñòîëü áîëüøîé äëèíå. Êpîìå òîãî, íå î÷åâèäåí êpèò
åpèé îïòèìàëüíîñòè. Hàâåpíÿêà îïòèìàëüíûé äëÿ áëèçêèõ ê øóìîâûì äàííûõ àëãîpèòì
áóäåò íå òàê óæ õîpîø íà òåêñòàõ èëè ÷åì-òî äpóãîì õîpîøî ñæèìàåìîì.
>> LB> Åñëè ýòî äàò÷èê ïñåâäîñëó÷àéíûõ ÷èñåë, òî îíà ðàâíà ýíòðîïèè
>> LB> ïðîãðàììû, ðåàëèçóþùåé ýòîò äàò÷èê + ýíòðîïèè íà÷àëüíîãî ñîñòîÿíèÿ
>> LB> äàò÷èêà (òàê íàç. Êîëìîãîðîâñêàÿ ñëîæíîñòü).
Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî. Hàïpèìåp, îáû÷íûé ãåíåpàòîp ÏÑÏ íà ñä
âèãîâîì påãèñòpå ñ öèêëîì â òåpàáèò îïèñûâàåòñÿ âñåãî íåñêîëüêèìè äåñÿòêàìè áèò
(íà÷àëüíîå ñîñòîÿíèå, äëèíà, ìåñòà âçÿòèÿ îápàòíûõ ñâÿçåé), à íà âûáîpêå ìåíåå
1/10 öèêëà åãî âûõîäíûå äàííûå õpåí îòëè÷èøü îò ñëó÷àéíîãî íåêîppåëèpîâàííîãî
ïîòîêà.
>> LB> Åñëè äàò÷èê îñíîâûâàåòñÿ íà ôèçè÷åñêè ñëó÷àéíûõ ïðîöåññàõ, òî îíà
>> LB> ïðîïîðöèîíàëüíà äëèíå ïîñëåäîâàòåëüíîñòè.
Ýòî òîæå âåpíî ëèøü ïpèáëèçèòåëüíî. Ó ëþáîãî ôèçè÷åñêîãî îáúåêòà åñòü è èçáûòî÷
íûå íèçêî÷àñòîòíûå øóìû, è êîíå÷íàÿ ïîëîñà ÷àñòîò è ìàëî ëè ÷òî åùå, à êàê ñëåä
ñòâèå - íàëè÷åñòâóåò êîppåëÿöèÿ.
Ïîñêîëüêó â âîïpîñàõ àpõèâàöèè íàñ èíòåpåñóåò íå "äâèæåíèå ñôåpè÷åñêîãî êîíÿ â
âàêóóìå", à âïîëíå ïpàêòè÷åñêèå âîïpîñû ïpè çàâåäîìî íåäîñòàòî÷íûõ èñõîäíûõ äàí
íûõ - âñÿ ýòà òåîpèÿ èìååò íåñêîëüêî êîñâåííîå îòíîøåíèå ê ïpàêòèêå.
Cheers, Aleksei [mailto:pogorily@hotmail.com]
--- GoldED/W32 2.51.A1026 UNREG
* Origin: Home of Fire (7-095)421-1201 Freq 00:00-05:30 MSK (2:5020/1504)
— RU.COMPRESS
From : Vadim G Zabelin 2:5020/400 16 Jun 99 08:54:00
To : All
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: Vadim G Zabelin <landcruiser@mailcity.com>
Dmitry Belash wrote:
> À ðàçâå èçáûòî÷íîñòü ñîñòîèò òîëüêî â ïîâòîðåíèÿõ?
Èçáûòî÷íîñòü v ïîíÿòèå òåîðèè èíôîðìàöèè. Hàëè÷èå èçáûòî÷íîñòè â
çàïèñè ñîîáùåíèé êàêîãî-ëèáî èñòî÷íèêà èíôîðìàöèè ïðîÿâëÿåòñÿ â
âîçìîæíîñòè çàïèñàòü ýòè ñîîáùåíèÿ â ñðåäíåì áîëåå êðàòêî, èñïîëüçóþ òå
æå ñàìûå çíàêè ( ò.å. çàìåíÿÿ îäèí êîä íà äðóãîé ñ òåì æå àëôàâèòîì, ñì.
Êîäèðîâàíèå ). Hàïðèìåð, åñëè ðàññìàòðèâàåìûå ñîîáùåíèÿ ïðåäñòàâëÿþò
ñîáîé ïîñëåäîâàòåëüíîñòè çíàêîâ 0 è 1 , â êîòîðûõ åäèíèöà âñòðå÷àåòñÿ â
ñðåäíåì îäíè ðàç íà äåñÿòü çíàêîâ, òî, ïðèìåíÿÿ êîäèðîâàíèå ïî ïðàâèëó
00 ? 0, 01?10, 10?110, 11?111, ìîæíî ñîêðàòèòü çàïèñü ïî÷òè âäâîå.
Ìàêñèìàëüíàÿ äîëÿ "ëèøíèõ" çíàêîâ îïðåäåëÿåòñÿ ïî ñòàòèñòè÷åñêèì
ñâîéñòâàì ðàññìàòðèâàåìîãî èñòî÷íèêà ñîîáùåíèé è òàêæå íàçûâàåòñÿ åãî
èçáûòî÷íîñòüþ.  ýòîì ïîíèìàíèè èçáûòî÷íîñòü R îïðåäåëÿåòñÿ ïî ôîðìóëå
R=1-H/log2m, ãäå m v ÷èñëî áóêâ àëôàâèòà, à H ýíòðîïèÿ èñòî÷íèêà íà
áóêâó ñîîáùåíèÿ. Ìîæíî ïîäñ÷èòàòü, ÷òî â ïðèâåäåííîì ïðèìåðå
èçáûòî÷íîñòü ðàâíà 0,53. Ìèíèìàëüíîé èçáûòî÷íîñòüþ R=0 îáëàäàåò òîëüêî
ïîñëåäîâàòåëüíîñòü, â êîòîðîé çíàêè íåçàâèñèìû è ñ âåðîÿòíîñòüþ 1/m
ìîãóò áûòü ðàâíû ëþáîé èç áóêâ àëôàâèòà.
Ïðàêòè÷åñêè âàæåí âîïðîñ îá îöåíêå èçáûòî÷íîñòè êîíêðåòíûõ âèäîâ
ñîîáùåíèé (òàêèõ, êàê ïèñüìåííàÿ è óñòíàÿ ðå÷ü, ôîòîòåëåãðàììû,
òåëåâèçèîííûå èçîáðàæåíèÿ). Âåëè÷èíà èçáûòî÷íîñòè â íèõ îêàçûâàåòñÿ
îáû÷íî çíà÷èòåëüíîé. Òàê, íàïðèìåð, èçáûòî÷íîñòü àíãëèéñêîé ïèñüìåííîé
ðå÷è íå ìåíåå 0,6.
--- ifmail v.2.14dev3
* Origin: V. Zabelin Enterprises (2:5020/400)
— RU.COMPRESS
From : Andrey Batalev 2:5020/400 16 Jun 99 09:31:49
To : All
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: "Andrey Batalev" <batal@icb.spb.su>
Äîáðûé ...!
>ÇÛ. Ãäå áû ïî÷èòàòü ÷òî-íèáóäü ïî òåìå ýíòðîïèè è ò.ä. íà ðóññêîì (URL), à
òî
>ïðàêòè÷åñêè ëàìåðîì ñåáÿ ÷óâñòâóþ. È ïðî ìàðêîâñêèé êîäåð òîæå.
Ïî ïîâîäó ïî÷èòàòü: ìîæíî îáðàòèòüñÿ ê êëàññèêå -- òåîðèÿ èíôîðìàöèè.
Èíôîðìàöèÿ è ýíòðîïèÿ - ýòî áàçîâûå ïîíÿòèÿ. Ñæàòèå èíôîðìàöèè -- (ìîæíî
ñêàçàòü :) ïîáî÷íûé ýôôåêò. Òàì æå ìîæíî ïî÷èòàòü è ïðî ìàðêîâñêèå ïðîöåññû,
èñòî÷íèêè èíôîðìàöèè (äàò÷èêè ñëó÷àéíûõ ÷èñåë).
Àíäðåé.
--- ifmail v.2.14dev3
* Origin: ICB, St.Petersburg (2:5020/400)
— RU.COMPRESS
From : Andrey Batalev 2:5020/400 16 Jun 99 09:53:19
To : All
Subj : Re: ñæàòü
From: "Andrey Batalev" <batal@icb.spb.su>
Dmitry Belash wrote in message <929065235@p12.f856.n5030.z2.ftn>...
> ¦_¦*
> ¦ ¦¦ All!
>
>Èìååòñÿ ïîñëåäîâàòåëüíîñòü áèò, â êîòîðîé íóëåé ðàç â 5-6 áîëüøå, ÷åì
åäèíèö.
>Êàê ñæàòü, äà ïîïëîòíåå? Åñòü áðåäîâàÿ èäåÿ ñîñòðÿïàòü ðÿä èç ÷èñåë N,
çàìåíÿÿ
>íà N ïîñë-òü "åäèíèöà + N íóëåé", à ïîòîì ñæàòü åãî Õàôôìåíîì (èëè
>àðèôìåòè÷åñêèì?), íî, êàê ìíå êàæåòñÿ, ìîæíî ïðèäóìàòü ÷òî-íèáóäü
ïîëó÷øå...
>
>Bye!
> Dmitry.
>
Äîáðûé ...!
Ïóñòü íà âõîäå ïîñëåäîâàòåëüíîñòü
0100010100100100100010011000001
Ñîçäàåì àëôàâèò:
0(000) -- 0
1(001) -- 1
2(010) -- 01
3(011) -- 001
4(100) -- 0001
5(101) -- 00001
6(110) -- 000001
7(111) -- 000000
êîäèðóåì âõîäíóþ ïîñëåäîâàòåëüíîñòü
<01><0001><01><001><001><001><0001><001><1><000001> -- äëèíà 33 áèò
2 4 2 3 3 3 4 3
1 6 -- äëèíà 10*3 = 30 áèò
Åñëè äåñòâèòåëüíî âî âõîäíîì ïîòîêå âåðîÿòíîñòü ïîÿâëåíèÿ 0 íàìíîãî áîëüøå,
÷åì 1 -- òî äàííûé àëãîðèòì ìîæåò áûòü ýôôåêòèâåí.
Äëÿ îïðåäåëåííîãî èñòî÷íèêà ìîæíî ïîäîáðàòü ðàçìåð àëôàâèòà.
Àíäðåé
--- ifmail v.2.14dev3
* Origin: ICB, St.Petersburg (2:5020/400)
— RU.COMPRESS
From : Eugene Pazhitnov 2:5020/40.22 16 Jun 99 10:58:44
To : Alexey Minin
Subj : Ìàññèâ ïîæàòü íóæíî
Ãëÿíó ÿ íà òî, ÷òî ïèøåò Alexey Minin ê All è íè÷åãî åìó(åé) íà ýòî íå îòâå÷ó,
êpîìå
AM> Ñóáæ, ÷èñëà â í¸ì â èíòåðâàëå [0..99], òî åñòü äâóõçíà÷íûå.
AM> Ñåé÷àñ äåëàþ òàê: â áàéòå èñïîëüçóþ 7 áèò, à èç âîñüìûõ ñîáèðàþ åù¸ îäî
AM> ñåìèáèòíîå ÷èñëî. Hî èìõî ëó÷øå ìîæíî ñäåëàòü, ïëç ïîäñêàæèòå êàê.
Êîäàìè ïåpåìåííîé äëèíû.  òâîåì ñëó÷àå:
0..27 êîäèpóþòñÿ êàê 000000..011011
28..99 êàê 0111000..1111111, ÷òî äàåò ïpèìåpíî 6.7 áèò íà ÷èñëî.
AM> ÇÛ ãëàâíîå íóæíî ÷òîáû ðåøåíèå áûëî ïðîñòîå.
Âîò êóñîê äîêè îò íàïèñàííîé ìíîé â ñâîå âpåìÿ ïpîãè (òèïà UUE, òîëüêî ñ
ïpîèçâîëüíûì íàáîpîì ñèìâîëîâ)
========== Ãëÿíó ÿ íà ôàéë CREEPER.DOC è ïî÷òè íè÷åãî íå âñòàâëþ ==========
ÏÐÈËÎÆÅHÈÅ À. Ïpèíöèï pàáîòû.
 îñíîâå ïpîãpàììû ëåæèò èñïîëüçîâàíèå êîäîâ ïåpåìåííîé äëèíû.
Âõîäíîé ïîòîê pàññìàòpèâàåòñÿ êàê ïîòîê áèòîâ, êîòîpûé êîäèpyåòñÿ ñ
ïîìîùüþ yêàçàííîãî àëôàâèòà. Ïyñòü y íàñ åñòü àëôàâèò äîïyñòèìûõ
ñèìâîëîâ pàçìåpîì n, òîãäà ñèìâîëû ñ êîäîì áîëüøå èëè pàâíûì
stp=2^[log2(n)+1]-n, ãäå êâàäpàòíûå ñêîáêè îáîçíà÷àþò öåëyþ ÷àñòü,
ïîëy÷àþò äîïîëíèòåëüíûé áèò.
Åñëè:
n - pàçìåpíîñòü àëôàâèòà
a[n] - àëôàâèò äîïyñòèìûõ ñèìâîëîâ
nb = [log2(n)]
stp=2^[log2(n)+1]-n
Òî àëãîpèòì êîäèpîâàíèÿ áyäåò ñëåäyþùèì:
1. Âçÿòü èç âõîäíîãî ïîòîêà nb áèòîâ â C
2. Åñëè C >= stp
3. Âäâèíyòü åùå îäèí áèò èç âõîäíîãî ïîòîêà â C
4. Âûäàòü ñèìâîë a[C-stp] â âûõîäíîé ïîòîê
5. 针֌
6. Âûäàòü ñèìâîë a[C] â âûõîäíîé ïîòîê
7. Åñëè íå êîíåö âõîäíîãî ïîòîêà, òî ïåpåéòè ê ï.1
Àëãîpèòì äåêîäèpîâàíèÿ:
1. Âçÿòü èç âõîäíîãî ïîòîêà ñèìâîë
2. Ïpåîápàçîâàòü åãî â êîä C â ñîîòâåòñòâèè ñ àëôàâèòîì a[n]
3. Åñëè C >= stp
4. C = C - stp
5. Âûäàòü (nb+1) áèòîâ èç C â âûõîäíîé ïîòîê
6. 针֌
7. Âûäàòü nb áèòîâ èç C â âûõîäíîé ïîòîê
8. Åñëè íå êîíåö âõîäíîãî ïîòîêà, òî ïåpåéòè ê ï.1
========== Ãëÿíó ÿ íà êîíåö ôàéëà CREEPER.DOC, è íè÷åãî íå ñêàæó ==========
Äà, òåáÿ èíòåpåñóåò pàçäåë "äåêîäèpîâàíèå".
Ñ óâàæåíèåì, [NW SDK Vol.#14] [2:5020/40.22 Aka 2:5099/99.22]
Æåíÿ. [Team Ìàññèâ ïîæàòü íóæíî]
--- Äåä-ïpîãpàììèñò, ïèøóùèé NLMû ïîä íåòâàpü 3.00.Beta5+
* Origin: Tetris Hating Club (2:5020/40.22)
— RU.COMPRESS
From : Michael Semikov 2:5059/16.9 16 Jun 99 11:34:24
To : Alexey Minin
Subj : Re: Ìàññèâ ïîæàòü íóæíî
Äîáðîãî äíÿ&íî÷è òåáå Alexey!
Áûëî, <Ïîíåäåëüíèê Èþíü 14 1999>, êîãäà Alexey Minin ïèñàë ê All
AM> Ñóáæ, ÷èñëà â í¸ì â èíòåðâàëå [0..99], òî åñòü äâóõçíà÷íûå.
AM> Ñåé÷àñ äåëàþ òàê: â áàéòå èñïîëüçóþ 7 áèò, à èç âîñüìûõ ñîáèðàþ åù¸
AM> îäî ñåìèáèòíîå ÷èñëî. Hî èìõî ëó÷øå ìîæíî ñäåëàòü, ïëç ïîäñêàæèòå êàê.
Èñïîëüçóé ñèñòåìó ñ÷èñëåíèÿ ñ îñíîâàíèåì 100 - íåïëîõîé âàðèàíò, åñëè ìåæäó
÷èñëàìè íå íàáëþäàåòñÿ íèêàêîé çàêîíîìåðíîñòè, èíà÷å - ìîäåëèðóé èñòî÷íèê.
Ñ íàèëó÷øèìè ïoæåëàíèÿìè, Michael.
---
* Origin: Ñíåãèðè! Hå Ãèðè! (2:5059/16.9)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 16 Jun 99 12:19:37
To : Vadim G Zabelin
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Vadim G Zabelin wrote:
>Dmitry Belash wrote:
>
>> À ðàçâå èçáûòî÷íîñòü ñîñòîèò òîëüêî â ïîâòîðåíèÿõ?
>
> Èçáûòî÷íîñòü v ïîíÿòèå òåîðèè èíôîðìàöèè. Hàëè÷èå èçáûòî÷íîñòè â
>çàïèñè ñîîáùåíèé êàêîãî-ëèáî èñòî÷íèêà èíôîðìàöèè ïðîÿâëÿåòñÿ â
[skip]
> Ïðàêòè÷åñêè âàæåí âîïðîñ îá îöåíêå èçáûòî÷íîñòè êîíêðåòíûõ âèäîâ
>ñîîáùåíèé (òàêèõ, êàê ïèñüìåííàÿ è óñòíàÿ ðå÷ü, ôîòîòåëåãðàììû,
>òåëåâèçèîííûå èçîáðàæåíèÿ). Âåëè÷èíà èçáûòî÷íîñòè â íèõ îêàçûâàåòñÿ
>îáû÷íî çíà÷èòåëüíîé. Òàê, íàïðèìåð, èçáûòî÷íîñòü àíãëèéñêîé ïèñüìåííîé
>ðå÷è íå ìåíåå 0,6.
Ó òåáÿ òàì OCR, òû íàñòîëüêî íå ëåíèâ, ÷òî âñå ðóêàìè íàáèâàåøü,
èëè íàñòîëüêî (íå ïîäáåðó ïîäõîäÿùåãî ýïèòåòà),
÷òî äåëàåøü cut&paste èç èíòåðíåòà, ñïåöèàëüíî íå ïðèâîäÿ URL?
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 16 Jun 99 12:21:51
To : Aleksei Pogorily
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Aleksei Pogorily wrote:
>>> LB> Åñëè ýòî äàò÷èê ïñåâäîñëó÷àéíûõ ÷èñåë, òî îíà ðàâíà ýíòðîïèè
>>> LB> ïðîãðàììû, ðåàëèçóþùåé ýòîò äàò÷èê + ýíòðîïèè íà÷àëüíîãî ñîñòîÿíèÿ
>>> LB> äàò÷èêà (òàê íàç. Êîëìîãîðîâñêàÿ ñëîæíîñòü).
>
>Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî. Hàïpèìåp, îáû÷íûé ãåíåpàòîp ÏÑÏ íà
Êàê ýòî ðàñøèôðîâûâàåòñÿ? Ýòî òî æå ñàìîå, ÷òî Linear Feedback Shift Register,
èëè íåò?
>ñäâèãîâîì påãèñòpå ñ öèêëîì â òåpàáèò îïèñûâàåòñÿ âñåãî íåñêîëüêèìè äåñÿòêàìè
>áèò (íà÷àëüíîå ñîñòîÿíèå, äëèíà, ìåñòà âçÿòèÿ îápàòíûõ ñâÿçåé), à íà âûáîpêå
LFSR - ïðàêòè÷åñêè òî æå ñàìîå.
>ìåíåå 1/10 öèêëà åãî âûõîäíûå äàííûå õpåí îòëè÷èøü îò ñëó÷àéíîãî
>íåêîppåëèpîâàííîãî ïîòîêà.
_Ðåàëüíàÿ_ (ñ òî÷êè çðåíèÿ "âñåâåäóùåãî áîãà") ýíòðîïèÿ èñòî÷íèêà
íå çàâèñèò îò àïðèîðíûõ çíàíèé. À ñæàòü äî ýíòðîïèè, _îöåíåííîé_ ôèêñèðîâàííîé
ìîäåëüþ èëè äî ìèíèìóìà èç íåñêîëüêèõ ìîäåëåé - çàäà÷à íå î÷åíü ñëîæíàÿ.
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Vadim G Zabelin 2:5020/400 16 Jun 99 14:27:14
To : All
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: Vadim G Zabelin <landcruiser@mailcity.com>
Leonid Broukhis wrote:
> Ó òåáÿ òàì OCR, òû íàñòîëüêî íå ëåíèâ, ÷òî âñå ðóêàìè íàáèâàåøü,
> èëè íàñòîëüêî (íå ïîäáåðó ïîäõîäÿùåãî ýïèòåòà),
> ÷òî äåëàåøü cut&paste èç èíòåðíåòà, ñïåöèàëüíî íå ïðèâîäÿ URL?
À òû íàñòîëüêî ëåíèâ , èëè íàñòîëüêî (íå ïîäáåðó ïîäõîäÿùåãî ýïèòåòà),
íå ñîîáðàçèòåëåí, ÷òî íå ìîæåø ïî ìîèì ïðåäèäóùèì ìåññàãàì ïîíÿòü
÷òî çà èñòî÷íèê ?
--- ifmail v.2.14dev3
* Origin: V. Zabelin Enterprises (2:5020/400)
— RU.COMPRESS
From : Andrey Batalev 2:5020/400 17 Jun 99 11:04:08
To : All
Subj : Re: ñæàòü
From: "Andrey Batalev" <batal@icb.spb.su>
Äîáðûé ... !
> AB> Ïóñòü íà âõîäå ïîñëåäîâàòåëüíîñòü
> AB> 0100010100100100100010011000001
>Ýòî æ íàòóðàëüíûé Õàôôìåí, ïðèìåíèòåëüíî ê òðîéêàì áèò.
Õàôôìàí : 110 --> 00001
Ýòîò : 000001 --> 110
>Òîëüêî ïîñëåäîâàòåëüíîñòè äëÿ êîäèðîâàíèÿ çàäàíû èçíà÷àëüíî.
>Håïîíÿòíî: êîä 0 ÿâëÿåòñÿ ïðåôèêñîì äëÿ 2..7. Òàê íå ïîéäåò, íàäî äîáàâèòü
>ñëåâà 0 êî âñåì êîäàì äëÿ 1..7, à äëÿ 0 áóäåò êîä 1.
Òóò ÿ ñîãëàñåí -- îïëîøàë.
Àëôàâèò:
000 - 1
001 - 01
010 - 001
011 - 0001
100 - 00001
101 - 000001
110 - 0000001
111 - 0000000
ò.î. ìîæíî ñêàçàòü, ÷òî êîäèðóåòñÿ ðàñòîÿíèå ìåæäó åäèíèöàìè
Ïðè ïðåîáëàäàíèè åäèíèö ñæèìàòü áóäåò íîðìàëüíî.
Hóæíî áîëåå ïîäðîáíî ïðîàíàëèçèðîâàòü èñòî÷íèê è âûáðàòü ìîùíîñòü àëôàâèòà.
Êîíå÷íî èçáûòî÷íîñòü âñå ðàâíî íåêîòîðàÿ áóäåò.
Åñëè õî÷åòñÿ ïîæàòü äàëüøå -- Õàôôìàí (ñòàòè÷åñêèé èëè àäàïòèâíûé).
Àíäðåé
--- ifmail v.2.14dev3
* Origin: ICB, St.Petersburg (2:5020/400)
— RU.COMPRESS
From : Dimas Gr 2:469/117.6 17 Jun 99 13:03:51
To : All
Subj : ADPCM
Hell o , All !
Èäåéêà ïî ïîâîäó êîäèpîâàíèÿ çâóêà. Ïîêpèòèêóéòå..
Åñòü èíòåíñèâíîñòè çâóêà, ïîñëåäíèå N áàéò. Ïî íèì ïpîâåñòè èíòåpïîëÿöèîííûé
ìíîãî÷ëåí n-îé ñòåïåíè, è çàïèñûâàòü (è ñæèìàòü êàê-òî åùå äàëåå) pàçíîñòü
ìåæäó âû÷èñëåííûì çíà÷åíèåì è òåì, ÷òî äîëæíî áûòü. Äóìàþ, íå ìåäëåííî áóäåò,
åñëè ïàpàáîëîé èíòåpïîëèpîâàòü, n=2. Èëè åùå âàpèàíò: pàñêëàäûâàòü íà
ãàpìîíèêè. Õîòÿ õç, påàëüíî ýòî èëè íåò, áóäåò ëè ýòî pàáîòàòü èëè íåò.
Dimas, aka gds/FH
--- Hå ñìîòðè íà ìåíÿ òàê ..., ÿ âñ¸ ðàâíî áóäó äóìàòü, ÷òî ÿ ïðàâ !
* Origin: In hack we trust. (FidoÅñòü! 2:469/117.6)
— RU.COMPRESS
From : Dimas Gr 2:469/117.6 17 Jun 99 13:03:51
To : All
Subj : ADPCM
@RealName: Ãpåáåíþê Äìèòpèé Ñåpãååâè÷
Hell o , All !
Èäåéêà ïî ïîâîäó êîäèpîâàíèÿ çâóêà. Ïîêpèòèêóéòå..
Åñòü èíòåíñèâíîñòè çâóêà, ïîñëåäíèå N áàéò. Ïî íèì ïpîâåñòè èíòåpïîëÿöèîííûé
ìíîãî÷ëåí n-îé ñòåïåíè, è çàïèñûâàòü (è ñæèìàòü êàê-òî åùå äàëåå) pàçíîñòü
ìåæäó âû÷èñëåííûì çíà÷åíèåì è òåì, ÷òî äîëæíî áûòü. Äóìàþ, íå ìåäëåííî áóäåò,
åñëè ïàpàáîëîé èíòåpïîëèpîâàòü, n=2. Èëè åùå âàpèàíò: pàñêëàäûâàòü íà
ãàpìîíèêè. Õîòÿ õç, påàëüíî ýòî èëè íåò, áóäåò ëè ýòî pàáîòàòü èëè íåò.
Dimas, aka gds/FH
--- Hå ñìîòðè íà ìåíÿ òàê ..., ÿ âñ¸ ðàâíî áóäó äóìàòü, ÷òî ÿ ïðàâ !
* Origin: In hack we trust. (FidoÅñòü! 2:469/117.6)
— RU.COMPRESS
From : Andrey Batalev 2:5020/400 17 Jun 99 19:43:56
To : All
Subj : Re: ñæàòü
From: "Andrey Batalev" <batal@icb.spb.su>
Leonid Broukhis wrote in message ...
>Andrey Batalev wrote:
>
>>>Òîëüêî ïîñëåäîâàòåëüíîñòè äëÿ êîäèðîâàíèÿ çàäàíû èçíà÷àëüíî.
>>>Håïîíÿòíî: êîä 0 ÿâëÿåòñÿ ïðåôèêñîì äëÿ 2..7. Òàê íå ïîéäåò, íàäî
äîáàâèòü
>>>ñëåâà 0 êî âñåì êîäàì äëÿ 1..7, à äëÿ 0 áóäåò êîä 1.
>>Òóò ÿ ñîãëàñåí -- îïëîøàë.
>> Àëôàâèò:
>>000 - 1
>>001 - 01
>>010 - 001
>>011 - 0001
>>100 - 00001
>>101 - 000001
>>110 - 0000001
>>111 - 0000000
>>ò.î. ìîæíî ñêàçàòü, ÷òî êîäèðóåòñÿ ðàñòîÿíèå ìåæäó åäèíèöàìè
>>Ïðè ïðåîáëàäàíèè åäèíèö ñæèìàòü áóäåò íîðìàëüíî.
>
>Çàêîäèðóé-êà òû ìíå ïîñëåäîâàòåëüíîñòü 000000000010.
À ïîæàëóéñòà? :)
0000000-0001-0.
111-011-001
1) Hà êîíöå áóäåò ëèøêà, íî åå óáèðàþò ïðè ïîìîùè äîáàâëåíèÿ äëèíû
ïîñëåäîâàòåëüíîñòè.
2) çàêîäèðîâàë äëÿ äàííîãî àëôàâèòà, íî ìîæíî âçÿòü àëôàâèò íå 8-ðè÷íûé, à
äîïóñòèì 16-ðè÷íûé.  ýòîì ñëó÷àå ìàêñèìàëüíàÿ ïîñëåäîâàòåëüíîñòü íóëåé
ïðåîáðàçóåìàÿ â ñèìâîë áóäåò 0000000000000000000 (15), íî ïðè ýòîì êàæäûé
âûõîäíîé ñèìâîë áóäåò 4 áèòîâûé.
Àíäðåé
--- ifmail v.2.14dev3
* Origin: ICB, St.Petersburg (2:5020/400)
— RU.COMPRESS
From : Aleksey Pichugin 2:5020/400 17 Jun 99 19:52:15
To : All
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: Aleksey Pichugin <pichugin@hotpop.com>
Leonid Broukhis wrote:
> >>> Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî. Hàïpèìåp, îáû÷íûé ãåíåpàòîp ÏÑÏ
íà
> >LB> Êàê ýòî ðàñøèôðîâûâàåòñÿ? Ýòî òî æå ñàìîå, ÷òî Linear Feedback Shift
> >LB> Register, èëè íåò?
>
> Òàê ðàñøèôðîâûâàåòñÿ-òî êàê?
ãåíåðàòîð ÏÑ× = ãåíåðàòîð Ïñåâäî-Ñëó÷àéíûõ ×èñåë
LFSR - ÷àñòíûé ñëó÷àé
À.Ïè÷óãèí
--- ifmail v.2.14dev3
* Origin: Salford University (2:5020/400)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 17 Jun 99 22:16:41
To : Aleksey Pichugin
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Aleksey Pichugin wrote:
>Leonid Broukhis wrote:
>
>>>>> Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî.
>>>>> Hàïpèìåp, îáû÷íûé ãåíåpàòîp ÏÑÏ íà
>> >LB> Êàê ýòî ðàñøèôðîâûâàåòñÿ? Ýòî òî æå ñàìîå, ÷òî Linear Feedback Shift
>> >LB> Register, èëè íåò?
>>
>> Òàê ðàñøèôðîâûâàåòñÿ-òî êàê?
>
>ãåíåðàòîð ÏÑ× = ãåíåðàòîð Ïñåâäî-Ñëó÷àéíûõ ×èñåë
À ÏÑÏ - ïñåâäî-ñëó÷àéíûõ ïîñëåäîâàòåëüíîñòåé, ÷òî ëè? Èëè îïå÷àòêà?
>LFSR - ÷àñòíûé ñëó÷àé
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Aleksei Pogorily 2:5020/1504 18 Jun 99 02:20:14
To : Leonid Broukhis
Subj : Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
Hi Leonid!
At ÷åòâåpã, 17 èþíÿ 1999, 11:57 Leonid Broukhis wrote to Aleksei Pogorily:
>>>> Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî. Hàïpèìåp, îáû÷íûé ãåíåpàòîp ÏÑÏ
>>>> íà
>>LB> Êàê ýòî ðàñøèôðîâûâàåòñÿ? Ýòî òî æå ñàìîå, ÷òî Linear Feedback Shift
>>LB> Register, èëè íåò?
>>
>> Îí ñàìûé.
LB> Òàê ðàñøèôðîâûâàåòñÿ-òî êàê?
ÏÑÏ - ÏñåâäîÑëó÷àéíàÿ Ïîñëåäîâàòåëüíîñòü
Èìååòñÿ â âèäó, ÷òî îí äàåò íà âûõîäå ïñåâäîñëó÷àéíóþ ïîñëåäîâàòåëüíîñòü áèò.
LB> Ïîëó÷àåòñÿ, ÷òî ðåàëüíàÿ ýíòðîïèÿ - ýòî ôóíêöèÿ îò óñèëèé, çàòðà÷åííûõ
LB> íà åå íàõîæäåíèå.
Áåçóñëîâíî. Â äpóãîé îáëàñòè (î ÊÏÄ òåïëîâûõ äâèãàòåëåé) Ñàäè Êàpíî ïèñàë, ÷òî
íå âñåãäà íàäî ñòpåìèòüñÿ ê òåîpåòè÷åñêîìó ïpåäåëó ÊÏÄ, ëåãêîñòü, íàäåæíîñòü, ä
åøåâèçíà ìàøèíû ìîãóò áûòü âàæíåå.
>>LB> À ñæàòü äî ýíòðîïèè, _îöåíåííîé_ ôèêñèðîâàííîé ìîäåëüþ èëè äî
>>LB> ìèíèìóìà èç íåñêîëüêèõ ìîäåëåé - çàäà÷à íå î÷åíü ñëîæíàÿ.
>>
>> Õì. Ïpîñòîé ïpèìåp. Àíãëèéñêèé (èëè póññêèé, íå ñóòü âàæíî) ëèòåpàòópíûé
>> òåêñò pàçìåpîì äî ìåãàáàéòà (äëÿ êîíå÷íîñòè çàäà÷è). Âpîäå êàê âåùü
>> âïîëíå êîíêpåòíàÿ. À àpõèâàòîpû æèâóò è pàçâèâàþòñÿ.
LB> Ïîòîìó ÷òî ìîäåëè ìåíÿþòñÿ.
Ïpè îäíîì è òîì æå îáúåêòå.
Cheers, Aleksei [mailto:pogorily@hotmail.com]
--- GoldED/W32 2.51.A1026 UNREG
* Origin: Home of Fire (7-095)421-1201 Freq 00:00-05:30 MSK (2:5020/1504)
— RU.COMPRESS
From : Maxime Zakharov 2:5065/10.12 18 Jun 99 08:29:18
To : Leonid Broukhis
Subj : Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
Hello Leonid,
Sunday June 13 1999 12:18, Leonid Broukhis wrote to Dmitry Belash:
>> 2. Êàêîâà ýíòðîïèÿ ïîñëåäîâàòåëíîñòè, ïîëó÷åííîé ñ ïîìîùüþ RND?
Îíà áóäåò áëèçêà ê ìàêñèìàëüíîé, ïpè÷åì áëèçîñòü áóäåò çàâèñåòü îò
"õîpîøåñòè" ôóíêöèè RND.
LB> Åñëè ýòî äàò÷èê ïñåâäîñëó÷àéíûõ ÷èñåë, òî îíà ðàâíà ýíòðîïèè
LB> ïðîãðàììû, ðåàëèçóþùåé ýòîò äàò÷èê + ýíòðîïèè íà÷àëüíîãî ñîñòîÿíèÿ
LB> äàò÷èêà (òàê íàç. Êîëìîãîðîâñêàÿ ñëîæíîñòü).
ÈÌÕÎ, Êîëìîãîpîâà ñëîæíîñòü - äëèíà ìèíèìàëüíîé ïpîãpàììû, ïîpîæäàþùåé
äàííóþ ïîñëåäîâàòåëüíîñòü (ïpè çàäàííîì âõîäå).
Ñì: http://tnet.sochi.net/~maxime/doc/3w_h.ps.gz ñòp.4 ïîñëåäíèé àáçàö â
ïpàâîé êîëîíêå.
Maxime Zakharov.
---
* Origin: http://tnet.sochi.net/~maxime/ (2:5065/10.12)
— RU.COMPRESS
From : Maxime Zakharov 2:5065/10.12 18 Jun 99 08:40:58
To : Dmitry Belash
Subj : ñæàòü
Hello Dmitry,
Friday June 11 1999 01:32, Dmitry Belash wrote to All:
DB> Èìååòñÿ ïîñëåäîâàòåëüíîñòü áèò, â êîòîðîé íóëåé ðàç â 5-6 áîëüøå, ÷åì
DB> åäèíèö. Êàê ñæàòü, äà ïîïëîòíåå? Åñòü áðåäîâàÿ èäåÿ ñîñòðÿïàòü ðÿä èç
DB> ÷èñåë N, çàìåíÿÿ íà N ïîñë-òü "åäèíèöà + N íóëåé", à ïîòîì ñæàòü åãî
DB> Õàôôìåíîì (èëè àðèôìåòè÷åñêèì?), íî, êàê ìíå êàæåòñÿ, ìîæíî ïðèäóìàòü
DB> ÷òî-íèáóäü ïîëó÷øå...
À åñëè ïîïpîáîâàòü òîòæå àpèôìåòè÷åñêèé êîäåp ñ ôèêñèpîâàííîé òàáëèöåé ÷àñò
îò: â êîòîpîé ÷àñòîòà íóëÿ â 5-6 pàç áîëüøå ÷àñòîòû åäèíèöû. Çàîäíî îòïàä¸ò íåî
áõîäèìîñòü ìîäèôèêàöèè ìîäåëè.
Maxime Zakharov.
---
* Origin: http://tnet.sochi.net/~maxime/ (2:5065/10.12)
— RU.COMPRESS
From : Sergey Mishin 2:451/13.24 18 Jun 99 15:16:00
To : Dima Kirnocenskij
Subj : Re: ADPCM
Hello Dima!
¦ Quoting message from Dima Kirnocenskij to Anton Malykh
¦ [16 Jun 99 at 01:18]
AM> ñëó÷àå MS ADPCM ýòî ïpîñòî ëèíåéíàÿ êîìáèíàöèÿ äâóõ ïpåäûäóùèõ îò÷¸òîâ
AM> ñ çàäàííûìè êîýôôèöèåíòàìè) çíà÷åíèåì è èñòèííûì.
À ïîïîäpîáíåå ìîæíî?
DK> À âîò ïî÷åìó ýòî íàçûâàåòñÿ ADPCM, ìíå íå ñîâñåì ïîíÿòíî. Õîòÿ ÿ âèäåë
DK> òàêóþ âàpèàöèþ íà ýòó òåìó - áåpåì äåéñòâèòåëüíî ëèíåéíóþ êîìáèíöèþ
DK> íåñêîëüêèõ ïpåäûäóùèõ + (ìåòîä áëî÷íûé, pàçìåp áëîêà íåâåëèê) çàäàåì äëÿ
DK> êàæäîãî áëîêà 1) âèä ëèíåéíîãî ïpåäñêàçàíèÿ.
DK> 2) òî÷íîñòü, ñ êîòîpîé êîäèpóåì pàçíîñòü.
À ãäå èëè â ÷åì ýòî påàëèçîâûâàëîñü?
DK> À âîò âòpîé ïîïàâøèéñÿ ìíå íà ãëàçà êîäåp ïîâåpã ìåíÿ â óæàñ -
DK> òàì ýòà øòóêà, pàáîòàÿ íà áëîêàõ â 0x140 áàéò ñæèìàëà êàæäûé òàêîé áëîê äî
DK> 0x14
DK> áàéò. Âîò òàê, â 16 pàç. È ïpè ýòîì êà÷åñòâî íå îñîáî ñèëüíî òåpÿëîñü. ×òî
DK> ýòî çà àëãîpèòì ÿ íå ïîíÿë :(
Häà, ò.å. ÷òî íå påàëèçàöèÿ, òî âñ¸ ñâî¸...
73!
... Ìíîãèå âåùè íàì íåïîíÿòíû íå ïîòîìó, ÷òî íàøè ïîíÿòèÿ ñëàáû, íî ïîòîìó,
÷òî ñèè âåùè íå âõîäÿò â êpóã íàøèõ ïîíÿòèé (c) Kîçüìà Ïpóòêîâ ...
--- TM-Ed 1.14+
* Origin: Micro Station, Belarus, e-mail: serg_mis@chat.ru (2:451/13.24)
— RU.COMPRESS
From : Dmitry Shkarin 2:5020/400 18 Jun 99 21:08:55
To : All
Subj : (èíîãäà) áûñòðûé ÏÏÌ
From: "Dmitry Shkarin" <shkarin@arstel.ru>
Hi, All!
Áûñòðàÿ ðåàëèçàöèÿ ìåòîäà ÏÏÌÄ ðàñïîëîæåíà ïî àäðåñó
ftp://ftp.elf.stuba.sk/pub/pc/pack/ppmd.rar
ÇÛ Òåêñòû èçìåíåíû ïî ñðàâíåíèþ ñ òåìè ÷òî åñòü â DEV/COMP.
--- ifmail v.2.14dev3
* Origin: Ye 'Ol Disorganized NNTPCache groupie (2:5020/400)
— RU.COMPRESS
From : Serg Tikhomirov 2:5020/122.166 19 Jun 99 20:19:31
To : Leonid Broukhis
Subj : Ïàpî÷êà ãëóïûõ âîïpîñîâ :)
Çäpàâñòâyé, Leonid Broukhis!
11:57 of 17 Jun Leonid Broukhis wrote in a message to Aleksei Pogorily:
LB> Aleksei Pogorily wrote:
>>> Áåç àïpèîpíûõ çíàíèé - íå âñå òàê ïpîñòî. Hàïpèìåp, îáû÷íûé
>>> ãåíåpàòîp ÏÑÏ íà
>LB> Êàê ýòî pàñøèôpîâûâàåòñÿ? Ýòî òî æå ñàìîå, ÷òî Linear Feedback Shift
>LB> Register, èëè íåò?
>
>Îí ñàìûé.
LB> Òàê pàñøèôpîâûâàåòñÿ-òî êàê?
Ãåíåpàòîp ÏñåâäîÑëó÷àéíûõ Ïîñëåäîâàòåëüíîñòåé.
>LB> _Påàëüíàÿ_ (ñ òî÷êè çpåíèÿ "âñåâåäóùåãî áîãà") ýíòpîïèÿ èñòî÷íèêà
>LB> íå çàâèñèò îò àïpèîpíûõ çíàíèé.
>
>ß íå î÷åíü ïîíèìàþ, ÷òî òàêîå påàëüíàÿ ýíòpîïèÿ (íå òåîpåòè÷åñêîå
>îïpåäåëåíèå,
>à â påàëüíîé æèçíè). Hàïpèìåp, åñëè íåèçâåñòíî, ïîëó÷åí ëè ïîòîê áèò îò LFSR
>èëè ñ ôîòîïpèåìíêà, ïpèíèìàþùåãî ñâåò äàëåêîé çâåçäû, äàâíî ïîãàñøåé.
LB> Ïîëó÷àåòñÿ, ÷òî påàëüíàÿ ýíòpîïèÿ - ýòî ôóíêöèÿ îò óñèëèé,
LB> çàòpà÷åííûõ íà åå íàõîæäåíèå.
>LB> À ñæàòü äî ýíòpîïèè, _îöåíåííîé_ ôèêñèpîâàííîé ìîäåëüþ èëè äî ìèíèìóìà
>LB> èç íåñêîëüêèõ ìîäåëåé - çàäà÷à íå î÷åíü ñëîæíàÿ.
>
>Õì. Ïpîñòîé ïpèìåp. Àíãëèéñêèé (èëè póññêèé, íå ñóòü âàæíî)
>ëèòåpàòópíûé òåêñò
>pàçìåpîì äî ìåãàáàéòà (äëÿ êîíå÷íîñòè çàäà÷è). Âpîäå êàê âåùü âïîëíå
>êîíêpåòíàÿ. À àpõèâàòîpû æèâóò è pàçâèâàþòñÿ.
LB> Ïîòîìó ÷òî ìîäåëè ìåíÿþòñÿ.
À âîçìîæíî ëè ñîçäàíèå íåêîåé Àáñîëþòíîé Ìîäåëè? Hó õîòÿ áû äëÿ êîíêpåòíîãî
òèïà äàííûõ?
Âñåãî íàèëó÷øåãî!
Jee
---
* Origin: Êîííûé èíòåpôåéñ. (2:5020/122.166)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 19 Jun 99 22:32:56
To : Maxime Zakharov
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Maxime Zakharov wrote:
> LB> Åñëè ýòî äàò÷èê ïñåâäîñëó÷àéíûõ ÷èñåë, òî îíà ðàâíà ýíòðîïèè
> LB> ïðîãðàììû, ðåàëèçóþùåé ýòîò äàò÷èê + ýíòðîïèè íà÷àëüíîãî ñîñòîÿíèÿ
> LB> äàò÷èêà (òàê íàç. Êîëìîãîðîâñêàÿ ñëîæíîñòü).
>
> ÈÌÕÎ, Êîëìîãîpîâà ñëîæíîñòü - äëèíà ìèíèìàëüíîé ïpîãpàììû, ïîpîæäàþùåé
>äàííóþ ïîñëåäîâàòåëüíîñòü (ïpè çàäàííîì âõîäå).
×åì "äëèíà ìèíèìàëüíîé ïðîãðàììû" íå ýíòðîïèÿ? Ðå÷ü æå èäåò íå î êàêîé-ëèáî
êîíêðåòíîé ñèñòåìå êîìàíä, à î ãèïîòåòè÷åñêîé, ñæàòîé.
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 19 Jun 99 23:39:09
To : Alexey Minin
Subj : Ìàññèâ ïîæàòü íóæíî
* Crossposted in RU.COMPRESS
Hello Alexey!
Monday June 14 1999, Alexey Minin writes to All:
AM> Ñóáæ, ÷èñëà â í¸ì â èíòåðâàëå [0..99], òî åñòü äâóõçíà÷íûå.
AM> Ñåé÷àñ äåëàþ òàê: â áàéòå èñïîëüçóþ 7 áèò, à èç âîñüìûõ ñîáèðàþ åù¸
AM> îäî ñåìèáèòíîå ÷èñëî. Hî èìõî ëó÷øå ìîæíî ñäåëàòü, ïëç ïîäñêàæèòå êàê.
Åñëè òåáå åùå íå îòâåòèëè - óìíîæàé òðè ÷èñëà è çàïèñûâàé èõ â 20 áèò. Ìåíüøå
óæå ïî÷òè íåêóäà :)
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Aleksei Pogorily 2:5020/1504 20 Jun 99 10:03:36
To : Bulat Ziganshin
Subj : Ìàññèâ ïîæàòü íóæíî
Hi Bulat!
At ñóááîòà, 19 èþíÿ 1999, 23:39 Bulat Ziganshin wrote to Alexey Minin:
AM>> Ñóáæ, ÷èñëà â í¸ì â èíòåðâàëå [0..99], òî åñòü äâóõçíà÷íûå.
AM>> Ñåé÷àñ äåëàþ òàê: â áàéòå èñïîëüçóþ 7 áèò, à èç âîñüìûõ ñîáèðàþ åù¸
AM>> îäî ñåìèáèòíîå ÷èñëî. Hî èìõî ëó÷øå ìîæíî ñäåëàòü, ïëç ïîäñêàæèòå êàê.
BZ> Åñëè òåáå åùå íå îòâåòèëè - óìíîæàé òðè ÷èñëà è çàïèñûâàé èõ â 20 áèò.
Hàäåþñü, òû èìåë â âèäó óìíîæèòü ïåpâîå íà 10000, ïpèáàâèòü âòîpîå, óìíîæåííîå
íà 100 è ê ñóììå ïpèïëþñîâàòü òpåòüå?
ß ñ ïîëìèíóòû äóìàë, êàê æå ïåpåìíîæèòü òpè ÷èñëà, ÷òîáû ïîòîì èõ ìîæíî áûëî èç
påçóëüòàòà èçâåëå÷ü. ;)
BZ> Ìåíüøå óæå ïî÷òè íåêóäà :)
Åñëè åñòü çàìåòíîå íåpàâåíñòâî âåpîÿòíîñòåé pàçíûõ çíà÷åíèé, òî òàê è ïpîñèòñÿ
àpèôìåòè÷åñêèé êîäåp.
Cheers, Aleksei [mailto:pogorily@hotmail.com]
--- GoldED/W32 2.51.A1026 UNREG
* Origin: Home of Fire (7-095)421-1201 Freq 00:00-05:30 MSK (2:5020/1504)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 20 Jun 99 10:21:43
To : Aleksei Pogorily
Subj : Ìàññèâ ïîæàòü íóæíî
* Crossposted in RU.COMPRESS
Hello Aleksei!
Sunday June 20 1999, Aleksei Pogorily writes to Bulat Ziganshin:
BZ>> Åñëè òåáå åùå íå îòâåòèëè - óìíîæàé òðè ÷èñëà è çàïèñûâàé èõ â
BZ>> 20 áèò.
AP> Hàäåþñü, òû èìåë â âèäó óìíîæèòü ïåpâîå íà 10000, ïpèáàâèòü âòîpîå,
AP> óìíîæåííîå íà 100 è ê ñóììå ïpèïëþñîâàòü òpåòüå? ß ñ ïîëìèíóòû äóìàë,
AP> êàê æå ïåpåìíîæèòü òpè ÷èñëà, ÷òîáû ïîòîì èõ ìîæíî áûëî èç påçóëüòàòà
AP> èçâåëå÷ü. ;)
Äà, ãëóïîñòü ñêàçàë :)
BZ>> Ìåíüøå óæå ïî÷òè íåêóäà :)
AP> Åñëè åñòü çàìåòíîå íåpàâåíñòâî âåpîÿòíîñòåé pàçíûõ çíà÷åíèé, òî òàê è
AP> ïpîñèòñÿ àpèôìåòè÷åñêèé êîäåp.
Hó, ýòî ñðàâíèòåëüíî äîëãî. À òàê - äåéñòâèòåëüíî, êîäåêè ãîòîâûå åñòü, ðàçî
áðàòüñÿ ñ íèìè íå ñëîæíåå, ÷åì ìîé àëãîðèòì ñàìîìó ðåàëèçîâàòü.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Maxime Zakharov 2:5065/10.12 20 Jun 99 14:49:50
To : Leonid Broukhis
Subj : Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
Hello Leonid,
Saturday June 19 1999 22:32, Leonid Broukhis wrote to Maxime Zakharov:
>> ÈÌÕÎ, Êîëìîãîpîâà ñëîæíîñòü - äëèíà ìèíèìàëüíîé ïpîãpàììû,
>> ïîpîæäàþùåé äàííóþ ïîñëåäîâàòåëüíîñòü (ïpè çàäàííîì âõîäå).
LB> ×åì "äëèíà ìèíèìàëüíîé ïðîãðàììû" íå ýíòðîïèÿ? Ðå÷ü æå èäåò íå î
LB> êàêîé-ëèáî êîíêðåòíîé ñèñòåìå êîìàíä, à î ãèïîòåòè÷åñêîé, ñæàòîé.
Äâà àpãóìåíòà:
1. ýòà âåùü íàçûâàåòñÿ ïî÷åìó-òî "Êîëìîãîpîâà _ñëîæíîñòü_", à íå "Êîëìîãîpîâà
ýíòpîïèÿ".
2. Ýíòpîïèþ îïpåäåëÿþò êàê ñpåäííå ÷èñëî áèò, çàòpà÷èâàåìûõ íà êîäèpîâíàèå
îäíîãî ñèâîëà. Ò.å. ÷òî-òî áëèçêîå ïîëó÷èòñÿ åñëè Êîëìîãîpîâó ñëîæíîñòü
ïîäåëèòü íà äëèíó ñîîáùåíèÿ.
2.5. Êîãäà Øåííîí âûâîäèë ôóíêöèè ýíòpîïèè, îí íàêëàäûâàë îïpåäåëåííûå óñëîâèÿ.
ß íå óâåpåí, ÷òî ýòè óñëîâèÿ áóäóò âûïîëíÿòüñÿ äëÿ äëèíû ïpîãpàììû.
Maxime Zakharov.
---
* Origin: http://tnet.sochi.net/~maxime/ (2:5065/10.12)
— RU.COMPRESS
From : Anton Malykh 2:5070/108 20 Jun 99 17:55:13
To : Dima Kirnocenskij
Subj : ADPCM
Çäîðîâüÿ /Âàì/, Dima!
DK> òàêóþ âàðèàöèþ íà ýòó òåìó - áåðåì äåéñòâèòåëüíî ëèíåéíóþ êîìáèíöèþ
DK> íåñêîëüêèõ ïðåäûäóùèõ + (ìåòîä áëî÷íûé, ðàçìåð áëîêà íåâåëèê) çàäàåì
DK> äëÿ êàæäîãî áëîêà 1) âèä ëèíåéíîãî ïðåäñêàçàíèÿ. 2) òî÷íîñòü, ñ
DK> êîòîðîé êîäèðóåì ðàçíîñòü.
DK> îáîøëîñü ìàëîé êðîâüþ - òàì êàê âàðèàíòîâ òî÷íîñòè, òàê è âàðèàíòîâ
DK> ïðåäñêàçàíèÿ áûëî øòóê ïî 16, è ÿ ïðîñòî òóïî ïåðåáèðàë âñå
DK> êîìáèíàöèè, ïîäáèðàÿ òó, ÷òî ëó÷øå âñåãî àïïðîêñèìèðóåò èñõîäíûé ïîòîê
DK> â íîðìå, ñêàæåì, sqrt(sum(x[i]*x[i])). Åñíî, ÷òî èçâðàò, à êàê ïî
DK> äðóãîìó ?
Ìîæíî ïîïpîáîâàòü ìåòîäîì íàèìåíüøèõ êâàäpàòîâ, ò.å. àíàëèòè÷åñêè âûpàçèòü
ñóììó êâàäpàòîâ îòêëîíåíèé âûõîäíûõ äàííûõ îò èñõîäíûõ, çàòåì âçÿòü ïpîèçâîäíûå
ïî ïàpàìåòpàì è, ïpèpàâíèâàÿ èõ ê íóëþ, íàéòè çàâèñèìîñòü ïàpàìåòpîâ îò
èñõîäíûõ
äàííûõ. Hî íå ôàêò, ÷òî ïîëó÷èòñÿ â äàííîì ñëó÷àå òàê ñäåëàòü. È åù¸, ÿ íå
ïîíÿë
ïpî òî÷íîñòü - âåäü åñëè ýòî òî÷íîñòü â ïpÿìîì ñìûñëå ñëîâà (íàïpèìåp,
êîëè÷åñòâî áèò íà ïåpåäà÷ó îäíîãî påçóëüòàòà), òî âñå ìåòîäû, ïî èäåå, áóäóò å¸
äåëàòü ìàêñèìàëüíîé, à åñëè íàì íóæåí ñòpîãèé êîýôôèöèåíò ñæàòèÿ?..
DK> À âîò âòðîé ïîïàâøèéñÿ ìíå íà ãëàçà êîäåð ïîâåðã ìåíÿ â óæàñ -
DK> òàì ýòà øòóêà, ðàáîòàÿ íà áëîêàõ â 0x140 áàéò ñæèìàëà êàæäûé òàêîé
DK> áëîê äî 0x14 áàéò. Âîò òàê, â 16 ðàç. È ïðè ýòîì êà÷åñòâî íå îñîáî
DK> ñèëüíî òåðÿëîñü. ×òî ýòî çà àëãîðèòì ÿ íå ïîíÿë :(
Ñæàòèå â 16 pàç áåç áîëüøèõ ïîòåpü êà÷åñòâà - ýòî ñèëüíî. ß äóìàþ, ÷òî äëÿ
äîñòèæåíèÿ òàêèõ påçóëüòàòîâ íàäî pàññìàòpèâàòü çâóê íå â PCM-âèäå, à
pàçëîæåííûì êàêèì-íèáóäü ïpåîápàçîâàíèåì íà ñïåêòpû.
Êñòàòè, íèêòî íå çíàåò, áûëè ëè êàêèå-íèáóäü óñïåøíûå ïîïûòêè ïpèìåíèòü
ôpàêòàëüíûå ìåòîäû äëÿ ñæàòèÿ çâóêà?
--- DA 5-9:33
* Origin: SYS1059 (2:5070/108)
— RU.COMPRESS
From : Dmitry Belash 2:5030/856.12 20 Jun 99 19:57:46
To : All
Subj : MPEG Layer 3
¦_¦*
¦ ¦¦ All!
Ìîæåò ëè íàðîä â îáùèõ ÷åðòàõ îïèñàòü âíóòðåííþþ ñòðóêòóðó ñàáæà? (À åùå ëó÷øå
- ïîäðîáíî :). Òàì âðîäå ãàðìîíèêè ëåæàò, èëè êàê?
ÇÛ. À ïî÷åìó òóò òðàôôèê òàêîé íèçêèé? Ýõà, ÷òî ëè, ìîëîäàÿ?
Bye!
Dmitry.
--- @c:\windows\win386.swp
* Origin: xxxxxxns smopu!M (2:5030/856.12)
— RU.COMPRESS
From : Anton Malykh 2:5070/108 20 Jun 99 21:10:13
To : Sergey Mishin
Subj : ADPCM
Çäîðîâüÿ /Âàì/, Sergey!
AM>> ñëó÷àå MS ADPCM ýòî ïpîñòî ëèíåéíàÿ êîìáèíàöèÿ äâóõ ïpåäûäóùèõ
AM>> îò÷¸òîâ ñ çàäàííûìè êîýôôèöèåíòàìè) çíà÷åíèåì è èñòèííûì.
SM> À ïîïîäpîáíåå ìîæíî?
Äàííûå pàçáèòû íà áëîêè pàçìåpîì BlockAlign. Ðàáîòàåì ñ òàêèì áëîêîì.
Êîýôôèöèåíòû èç fmt-chunk çàïèñàíû â Coeff[0..6].
1. ×èòàåì çàãîëîâîê áëîêà
for i=1 to Channels
n=GETBYTE
Coef1[i]=Coeff[n].Coef1
Coef2[i]=Coeff[n].Coef2
endfor
for i=1 to Channels Delta[i]=GETSHORT
for i=1 to Channels Samp1[i]=GETSHORT
for i=1 to Channels Samp2[i]=GETSHORT
2. Âûâîäèì ïåpâûå äâà ñýìïëà
for i=1 to Channels OUTSHORT(Samp2[i])
for i=1 to Channels OUTSHORT(Samp1[i])
3. Îñíîâíàÿ ÷àñòü
for n=1 to SamplesPerBlock-2
for i=1 to Channels
ErrorDelta=GETNIBBLE /* 4 áèòà ñî çíàêîì */
Prediction=(Samp1[i]*Coef1[i]+Samp2[i]*Coef[i])/256
Samp=Delta[i]*ErrorDelta+Prediction
if Samp> 32767 then Samp= 32767
if Samp<-32768 then Samp=-32768
OUTSHORT(Samp)
Delta[i]=Delta[i]*AdaptionTable[abs(ErrorDelta)]/256
if Delta[i]<16
Delta[i]=16
Samp2[i]=Samp1[i]
Samp1[i]=Samp
endfor
endfor
AdaptionTable[0]=230
AdaptionTable[1]=230
AdaptionTable[2]=230
AdaptionTable[3]=230
AdaptionTable[4]=307
AdaptionTable[5]=409
AdaptionTable[6]=512
AdaptionTable[7]=614
AdaptionTable[8]=768
Ïèñàë â påäàêòîpå, ïîýòîìó âîçìîæíû îøèáêè.
--- DA 5-9:33
* Origin: SYS1059 (2:5070/108)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 20 Jun 99 22:30:57
To : Serg Tikhomirov
Subj : Re: Ïàpî÷êà ãëóïûõ âîïpîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Serg Tikhomirov wrote:
>>Õì. Ïpîñòîé ïpèìåp. Àíãëèéñêèé (èëè póññêèé, íå ñóòü âàæíî)
>>ëèòåpàòópíûé òåêñò
>>pàçìåpîì äî ìåãàáàéòà (äëÿ êîíå÷íîñòè çàäà÷è). Âpîäå êàê âåùü âïîëíå
>>êîíêpåòíàÿ. À àpõèâàòîpû æèâóò è pàçâèâàþòñÿ.
>
> LB> Ïîòîìó ÷òî ìîäåëè ìåíÿþòñÿ.
>
> À âîçìîæíî ëè ñîçäàíèå íåêîåé Àáñîëþòíîé Ìîäåëè? Hó õîòÿ áû äëÿ êîíêpåòíîãî
>òèïà äàííûõ?
Åñëè êîíêðåòíûé òèï äàííûõ ïîðîæäåí èñòî÷íèêîì, _âñå_ ñâîéñòâà êîòîðîãî
èçâåñòíû, òî âîçìîæíî.
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Dima Kirnocenskij 2:5020/1129.11 21 Jun 99 00:20:35
To : Sergey Mishin
Subj : ADPCM
Hello Sergey.
18 Jun 99 15:16, Sergey Mishin wrote to Dima Kirnocenskij:
DK>> çàäàåì äëÿ êàæäîãî áëîêà 1) âèä ëèíåéíîãî
DK>> ïpåäñêàçàíèÿ. 2) òî÷íîñòü, ñ êîòîpîé êîäèpóåì pàçíîñòü.
SM> À ãäå èëè â ÷åì ýòî påàëèçîâûâàëîñü?
Âèäåîêîäåð îò èãðóøåê Electronic Arts (Dark Omen, íàïðèìåð).
Dima
... There are no unlockable doors...
--- Îí, ðîäèìûé ...
* Origin: Óæå â ïÿòü ëåò îí óñòîé÷èâî ëåâèòèðîâàë ... (2:5020/1129.11)
— RU.COMPRESS
From : Leonid Broukhis 2:5020/400 21 Jun 99 08:30:52
To : Maxime Zakharov
Subj : Re: Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
From: leob@asylum.mailcom.com (Leonid Broukhis)
Maxime Zakharov wrote:
> LB> ×åì "äëèíà ìèíèìàëüíîé ïðîãðàììû" íå ýíòðîïèÿ? Ðå÷ü æå èäåò íå î
> LB> êàêîé-ëèáî êîíêðåòíîé ñèñòåìå êîìàíä, à î ãèïîòåòè÷åñêîé, ñæàòîé.
>
> Äâà àpãóìåíòà:
>1. ýòà âåùü íàçûâàåòñÿ ïî÷åìó-òî "Êîëìîãîpîâà _ñëîæíîñòü_", à íå "Êîëìîãîpîâà
>ýíòpîïèÿ".
>2. Ýíòpîïèþ îïpåäåëÿþò êàê ñpåäííå ÷èñëî áèò, çàòpà÷èâàåìûõ íà êîäèpîâíàèå
>îäíîãî ñèâîëà. Ò.å. ÷òî-òî áëèçêîå ïîëó÷èòñÿ åñëè Êîëìîãîpîâó ñëîæíîñòü
>ïîäåëèòü íà äëèíó ñîîáùåíèÿ.
Ìíå êàçàëîñü, ÷òî ýíòðîïèÿ - ýòî èíòåãðàëüíûé ïîêàçàòåëü. Åñëè íåò, òîãäà
ïàðäîí.
>2.5. Êîãäà Øåííîí âûâîäèë ôóíêöèè ýíòpîïèè, îí íàêëàäûâàë îïpåäåëåííûå óñëîâèÿ
.
>ß íå óâåpåí, ÷òî ýòè óñëîâèÿ áóäóò âûïîëíÿòüñÿ äëÿ äëèíû ïpîãpàììû.
×òî æå ýòî çà óñëîâèÿ?
Leo
--- ifmail v.2.14dev3
* Origin: leob@at-mailcom.dot-com (2:5020/400)
— RU.COMPRESS
From : Maxime Zakharov 2:5065/10.12 21 Jun 99 23:14:33
To : Leonid Broukhis
Subj : Ïàðî÷êà ãëóïûõ âîïðîñîâ :)
Hello Leonid,
Monday June 21 1999 08:30, Leonid Broukhis wrote to Maxime Zakharov:
LB> ×òî æå ýòî çà óñëîâèÿ?
===
Suppose we have a set of possible events whose probabilities of occurrence
are $p_1,p_2,\ldots,p_n$. These probabilities are known but that is all we know
concerning which event will occur. Can we find a measure of how much "choice"
is involved in the selection of the event or of how uncertain we are of the
outcome?
If there is such a measure, say $H(p_1,p_2,\ldots,p_n)$, it is reasonable
to require of it the following properties:
1. $H$ should be continuous in the $p_i$.
2. If all $p_i$ are equal, $p_i=\frac{1}{n}$, then $H$ should be a
monotonic increasing function of $n$. With equally likely events there is more
choice, or uncertainty, when there are more possible events.
3. If a choice be broken down into two successive choices, the original $H$
should be the weighted sum of the individual values of $H$.
...
Theorem2: The only H satisfying the three above assumptions is of the form:
$$
H = - K \sum_{i=1}^n p_i \log p_i
$$
where $K$ is a positive constant.
===
The Bell System Technical Journal, Vol. XXVII, July, 1948, No. 3
Maxime Zakharov.
---
* Origin: http://tnet.sochi.net/~maxime/ (2:5065/10.12)
— RU.COMPRESS
From : Dmitry Belash 2:5030/856.12 22 Jun 99 01:19:58
To : All
Subj : 45.0%/55.0%
¦_¦*
¦ ¦¦ All!
Äîñòàòî÷íî äëèííàÿ ïîñëåäîâàòåëüíîñòü áèò èìååò ñîîòíîøåíèå åäèíèö è íóëåé
ñàáæ. Ïðèêèíåì: èìååò ëè ñìûñë ïûòàòüñÿ ñæàòü åå íåàäàïòèâíûì àðèôìåòè÷åñêèì
êîäåðîì.
Bye!
Dmitry.
--- @c:\windows\win386.swp
* Origin: xxxxxxns smopu!M (2:5030/856.12)
— RU.COMPRESS
From : Maxime Zakharov 2:5065/10.12 22 Jun 99 07:50:21
To : Dmitry Belash
Subj : 45.0%/55.0%
Hello Dmitry,
Tuesday June 22 1999 01:19, Dmitry Belash wrote to All:
DB> Äîñòàòî÷íî äëèííàÿ ïîñëåäîâàòåëüíîñòü áèò èìååò ñîîòíîøåíèå åäèíèö è
DB> íóëåé ñàáæ. Ïðèêèíåì: èìååò ëè ñìûñë ïûòàòüñÿ ñæàòü åå íåàäàïòèâíûì
DB> àðèôìåòè÷åñêèì êîäåðîì.
Ýòî çàâèñèò îò ïîâåäåíèÿ ýòîãî ñîîòíîøåíèÿ íà ïpîèçâîëüíûõ ôpàãìåíòàõ ýòîãî
ôàéëà, ò.å., ãpóáî ãîâîpÿ, ìîæåò îêàçàòüñÿ, ÷òî â íà÷àëå íóëåé íåñêîëüêî
áîëüøå, à â êîíöå íåñêîëüêî áîëüøå åäèíèö. Èìååò ñìûñë ñíà÷àëà ñpàâíèòü
àäàïòèâíûé è íåàäàïòèâíûé âàpèàíò íà òåñòîâûõ äàííûõ.
Maxime Zakharov.
---
* Origin: http://tnet.sochi.net/~maxime/ (2:5065/10.12)
— RU.COMPRESS
From : Maxime Zakharov 2:5020/400 23 Jun 99 13:44:55
To : All
Subj : Re: 45.0%/55.0%
From: Maxime Zakharov <mbb@sochi.ru>
Dmitry Belash wrote:
> Ðàñõîæäåíèå ñ ñàáæîì â ðàçíûõ ìåñòàõ ôàéëà íå áóäåò ïðåâûøàòü +/-2% (ïðè
> ðàññìîòðåíèè, ïî êðàéíåé ìåðå, ïàðû òûñÿ÷ áèò), ñòîèò ëè ïûòàòüñÿ ïðèìåíÿòü
> àäàïòèâíûé ìåòîä?
Ïðè ñóáæå ïîëó÷àåòñÿ ïðèìåðíî 0.99277 áèò/ñ, ïðè
43%/57% - 0.98581
Hó à ñîáñòâåííî àäàïòèâíûõ ìåòîäîâ - ìíîæåñòâî, ðîâíî ñòîëüêî ñêîëüêî
ïðèäóìàåøü ñïîñîáîâ àäàïòàöèè ìîäåëè ïî òåêóùåìó ïîòîêó. Ò.å. õîðîøåñòü
àäàïòèâíîãî ìåòîäà áóäåò çàâèñåòü îò òîãî êàê òû åãî ñêîíñòðóèðóåøü.
È âîîáùå, íå ñâåäåò ëè íåñîâåðøåíñòâî êîäåðà íà íåò íàø 1%
> ñæàòèÿ?
Hó åñëè áðàòü êëàññè÷åñêèé àðèôìåòè÷åñêèé (áåç âñÿêèõ óñêîðÿþùèõ
íàâîðîòîâ), òî ïîãðåøíîñòü ó íåãî íåâåëèêà, çàìåòíî íèæå 1%.
--
Maxim Zakharov http://tnet.sochi.net/~maxime/
Sochi, Russia
--- ifmail v.2.14dev3
* Origin: Mosbusinessbank, Sochi branch (2:5020/400)
— RU.COMPRESS
From : Maxime Zakharov 2:5020/400 24 Jun 99 11:10:53
To : All
Subj : Re: 45.0%/55.0%
From: Maxime Zakharov <mbb@sochi.ru>
Dmitry Belash wrote:
> MZ> Ïðè ñóáæå ïîëó÷àåòñÿ ïðèìåðíî 0.99277 áèò/ñ,
> MZ> 43%/57% - 0.98581
> Ïî êàêîé ôîðìóëå òû ýòî ñîñ÷èòàë? (èíòåðåñíî)
> Ó ìåíÿ ïîëó÷èëîñü 0.99 è 0.9804 .
H = -p \log_2 p - q \log_2 q
p - âåðîÿòíîñòü 1
q - âåðîÿòíîñòü 0
--
Maxim Zakharov http://tnet.sochi.net/~maxime/
Sochi, Russia
--- ifmail v.2.14dev3
* Origin: Mosbusinessbank, Sochi branch (2:5020/400)
— RU.COMPRESS
From : Dmitriy Savin 2:5079/31.76 25 Jun 99 19:42:00
To : Dmitry Belash
Subj : àpèôìåòè÷åñêèé àëãîpèòì
Ïðèâåò, Dmitry !
BZ>> Ïîáàéòíûé êîäåð îòëè÷àåòñÿ âíóòðåííèì óñòðîéñòâîì, à ðåçóëüòàò
BZ>> ïðèìåðíî òîò æå, ÷òî è â îáû÷íîì. Òîëüêî ðàáîòàåò áûñòðåå :)
DB> Õîðîøî. Èìååì òåêñò "GMSYMSGMYMGSGMYGSGYGMGSMGYGSMGGYGSGMSYGYYGSMGGYS". Â
DB> áèòîâîì ïðåäñòàâëåíèè G - 01000111 M - 01001101 S - 01010011 Y -
DB> 01011001 Ñîîòíîøåíèå íóëåé è åäèíèö 1:1.
Îáúÿñíè, plz, ìíå îäíó âåùü. Hèêàê íå ìîãó ïîíÿòü - åñëè áóêâà G èìååò â
äâîè÷íîì ïðåäñòàâëåíèè ÷èñëî 71, òî êàê æå òîãäà áóäåò ïðåäñòàâëÿòüñÿ ñàìî
÷èñëî 71 ?
P.S. Ó òåáÿ åñòü òàáëè÷êà áóêâ â äâîè÷íîì ïðåäñòàâëåíèè ? Èëè ôîðìóëà, ïî
êîòîðîé âûâîäÿòñÿ èõ çíà÷åíèÿ ?
Åùå óâèäèìñÿ, Dmitry .
Äìèòðèé Ñàâèí.
E-Mail : Dmitriy_personal@hotmail.com
Dmitriy_personal@madmail.com
--- TM-Ed 1.14+
* Origin: Îíè çíàëè öåíó áàéòà... (2:5079/31.76)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 26 Jun 99 16:56:05
To : Dmitry Belash
Subj : àpèôìåòè÷åñêèé àëãîpèòì
*** Answering a msg posted in area CARBON_COPIES (CARBON_COPIES).
* Crossposted in RU.COMPRESS
Hello Dmitry!
Thursday June 24 1999, Dmitry Belash writes to Bulat Ziganshin:
BZ>> Ïîáàéòíûé êîäåð îòëè÷àåòñÿ âíóòðåííèì óñòðîéñòâîì, à ðåçóëüòàò
BZ>> ïðèìåðíî òîò æå, ÷òî è â îáû÷íîì. Òîëüêî ðàáîòàåò áûñòðåå :)
DB> Õîðîøî. Èìååì òåêñò
DB> "GMSYMSGMYMGSGMYGSGYGMGSMGYGSMGGYGSGMSYGYYGSMGGYS". Â áèòîâîì
DB> ïðåäñòàâëåíèè G - 01000111 M - 01001101 S - 01010011 Y -
DB> 01011001 Ñîîòíîøåíèå íóëåé è åäèíèö 1:1. Ïðè ïîáèòîâîì êîäèðîâàíèè
DB> ñæàòèÿ íèêàêîãî. Ïðè ïîáàéòîâîì - îêîëî 2 áèò íà ñèìâîë. Òàê ÷òî...
DB>  ÷åì ÿ íåïðàâ? :)
 òîì, ÷òî òâîè âûêëàäêè íèêàêîãî îòíîøåíèÿ ê äåëó íå èìåþò. Äàâàé ÿ ýòî
íàçîâó "òðàäèöèîííûé àðèôìåòè÷åñêèé êîäåð" è "rangecoder". À êàê êàæäûé èç íèõ
óñòðîåí - ñàì ðàçáèðàéñÿ, ÿ ýòî ÷èñòî íà íåâåðáàëüíîì óðîâíå âîñïðèíèìàþ.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Vasya Danilov 2:5090/94.21 26 Jun 99 23:15:12
To : Bulat Ziganshin
Subj : àpèôìåòè÷åñêèé àëãîpèòì
Âû óæå äîæèâàåòå, Bulat ? ;)
VD>> à êàê äpîáíûå ÷èñëà êpîìó çàïÿòîé ïëàâàþùåé ìîæíî äåpæàòü ?
VD>> :)
BZ> ôèêñèðîâàííîé :)  ñó.÷àéíèê... ;)
óæå çíàåì-ñ. :)
.-'-'.v.-'-'-.v.-'-'-.v.-'-'-'.v.-'-'.v.-'. · · ······ ···· ·· .
: Acid : Pulse : Sonic : RB-338 : JJ 2 : ZX : · · ·· Will Live Forever ! :
`-,-,'^`-,-,-'^`-,-,-'^`-,-,-,'^`-,-,'^`-,' · · ······ ···· ·· '
--- GoldED/W32 3.0.1-asa9 SR1
* Origin: -> Acid Razor <- (2:5090/94.21)
— RU.COMPRESS
From : Igor Dolgov 2:5020/1562.30 29 Jun 99 02:33:44
To : Bulat Ziganshin
Subj : New files in AUTLCOMP and ADEVCOMP fileechos
Hello'y, Bulat.
Âcê Èþí 27 1999 09:00, Bulat Ziganshin ïèøåò All:
Îáúÿñíèòå ÷àéíèêó ãäå è êàê ýòè ôàéëû âçÿòü.
Çàðàíåå ñïàñèáî.
GoodBye, Bulat Ziganshin.
--- Ìàòðè÷íûé ïðèíòåð â ãîðåñòíûé ÷àñ êàæäîé èãîëî÷êîé ðàäóåò íàñ.
* Origin: Âñÿêîé òâàðå ïî NetWare. (2:5020/1562.30)
— RU.COMPRESS
From : Maxime Zakharov 2:5020/400 29 Jun 99 10:40:04
To : All
Subj : Re: 45.0%/55.0%
From: Maxime Zakharov <mbb@sochi.ru>
Dmitry Belash wrote:
> Ò.å. åñëè ó íàñ íà 9 íóëåé 11 åäèíèö, òî ýòî íå çíà÷èò, ÷òî 0 áóäåò
> êîäèðîâàòüñÿ â 0.9 áèòà, à 1 - â 1.1 ?..
Äà. Äëÿ ýòîãî íóæíî åùå êîä ïîñòðîèòü, êîòîðûé áóäåò êîäèðîâàòü 0 â 0.9
áèò, à 1 â 1.1, â ñðåäíåì, åñòåñòâåííî.
--
Maxim Zakharov http://tnet.sochi.net/~maxime/
Sochi, Russia
--- ifmail v.2.14dev3
* Origin: Mosbusinessbank, Sochi branch (2:5020/400)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 30 Jun 99 10:10:48
To : Igor Dolgov
Subj : New files in AUTLCOMP and ADEVCOMP fileechos
*** Answering a msg posted in area CARBON_COPIES (CARBON_COPIES).
* Crossposted in RU.COMPRESS
Hello Igor!
Tuesday June 29 1999, Igor Dolgov writes to Bulat Ziganshin:
ID> Îáúÿñíèòå ÷àéíèêó ãäå è êàê ýòè ôàéëû âçÿòü.
Ôðåêíóòü ñ ìîåé ñèñòåìû èëè:
=== Cut ===
BM> Ïîäñêàæèòå ïîæàëóéñòà ftp íà êîòîpûõ ìîæíî íàéòè ôèäîøíûå ôàéë ýõè ?
Hàïpèìåp:
ftp://FileEcho@ftp.marvelm.ru/
ftp://ftp.yukos.bryansk.ru/pub/FileEcho/
ftp://ftp.cc.usart.ru/pub/Fido/FileEcho/
http://bbs.ogo.ru/
=============================================================================
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 02 Jul 99 09:03:45
To : All
Subj : rtpatch'å-ïîäîáíîå
* Crossposted in RU.COMPRESS
=============================================================================
* Forwarded by Bulat Ziganshin (2:5093/28.26)
* Area : MY_MAIL (1. My personal mail )
* From : Sergei Romancha, 2:468/22.5 (Thursday July 01 1999 17:46)
* To : Bulat Ziganshin
* Subj : Re: àpèõèâèpîâàíèå â arj
=============================================================================
Ïðèâåò Bulat!
Òîãäà êèíü:
Äîïóñòèì åñòü ïpîãpàììà (.exe), îíà äîâîëüíî ÷àñòî îáíîâëÿåòñÿ. Äîïóñòèì å¸
pàçìåp ~500Kb. Ñ î÷åpåäíîé âåpñèåé îí êîíå÷íî óâåëè÷èâàåòñÿ íî íà î÷åíü ìàëî.
Èòàê, ïpè êàæäîì îáíîâëåíèè íóæíî ïåpåñûëàòü âñþ âåpñèþ. Hî äîïóñòèì åñëè èõ
ñîápàòü âñå âìåñòå è çàæàòü àpèõâàòîpîì ñ áîëüøèì ñëîâàp¸ì (jar32 ê ïpèìåpó) òî
èìÿ àpõèâà áóäåò íàìíîãî ìåíüøå ÷åì åñëè çàæàòü êàæäûé â îòäåëüíîñòè è ïîòîì èõ
ñëîæèòü. ×òî ÿ õî÷ó. Îòñûëàåì þçåpó ïåpâóþ âåpñèþ. À âìåñòî ñëåäóþùåé ïîñûëàåì
íå ñàì ôàéë, à òèïà ÷òî èçìåíèëîñü îòíîñèòåëüíî ïåpâîé âåpñèè. Òàêèì îápàçîì
þçåpó äëÿ âîññòàíîâëåíèÿ ñëåäóþùåé âåpñèè íóæåí îáÿçàòåëüíî îpèãèíàë (ïåpâàÿ
âåpñèÿ), à ïîòîì îí ïî íåìó âîññòàíàâëèâàåò. Ñóòü ÿñíà? Ñïpàøèâàåòñÿ, åñëè åñòü
ïpîãpàììêà äëÿ ïîäåpæêè ýòîé øòóêè? Åñëè åñòü òî êàê íàçûâååòñÿ è ãäå âçÿòü?
Åñëè íåò òî êàê áû ýòî ëó÷øå påàëèçîâàòü? Äëÿ ñæàòèÿ êîíå÷íî ìîæíî âçÿòü ëþáîé
àpõèâàòîp, íî êàê pàöèîíàëüíî (÷òîáû àpõèâàòîp ïîòîì ñìîã ýòî õîpîøî ñæàòü)
çàêîäèpîâàòü pàçíèöó ìåæäó ôàéëàìè, âåäü på÷ü èä¸ò íå ïpîñòîì äîáàâëåíèè êîäà ê
ïpåæíåìó ôàéëó, à îí ìîæåò áûòü ÷àñòè÷íî pàçápîñàí ïî âñåìó ôàéëó.
Ñ íàèëó÷øèìè ïîæåëàíèÿìè Ðîìàí÷à Ñåðãåé ìëàäøèé.
-+- GoldED/386 3.0.1
=============================================================================
Hello All!
Ó Ñåðãåÿ äîñòóï ê ýõå r/o ;)
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Igor Kostyaev 2:5083/13.22 02 Jul 99 14:34:24
To : Bulat Ziganshin
Subj : rtpatch'å-ïîäîáíîå
Hi Bulat,
Bulat Ziganshin wrote in a message to All:
[...]
BZ> ïîòîì èõ ñëîæèòü. ×òî ÿ õî÷ó. Îòñûëàåì þçåpó ïåpâóþ âåpñèþ. À
BZ> âìåñòî ñëåäóþùåé ïîñûëàåì íå ñàì ôàéë, à òèïà ÷òî èçìåíèëîñü
BZ> îòíîñèòåëüíî ïåpâîé âåpñèè. Òàêèì îápàçîì þçåpó äëÿ âîññòàíîâëåíèÿ
BZ> ñëåäóþùåé âåpñèè íóæåí îáÿçàòåëüíî îpèãèíàë (ïåpâàÿ âåpñèÿ), à
BZ> ïîòîì îí ïî íåìó âîññòàíàâëèâàåò. Ñóòü ÿñíà? Ñïpàøèâàåòñÿ, åñëè
BZ> åñòü ïpîãpàììêà äëÿ ïîäåpæêè ýòîé øòóêè? Åñëè åñòü òî êàê
BZ> íàçûâååòñÿ è ãäå âçÿòü?
Òàêîå åñòü â àpõèâàòîpå ACB, íàïpèìåp â âåpñèè 2.00c
Best regards.
Igor Kostyaev <kîstyaev@sîfthîme.net> ICQ # 11543976
---
* Origin: DeSolder Station (2:5083/13.22)
— RU.COMPRESS
From : Sergei Bakhmetiev 2:5030/346.100 02 Jul 99 21:22:38
To : All
Subj : Ëó÷øèé àðõèâàòîð äëÿ...
Hi, All!
Õîòåëîñü áû çíàòü êàêîé àpõèâàòîp ëó÷øå îñòàëüíûõ ñæèìàåò êàêîé-òî îïpåäåëåííûé
pàñïpîñòpàíåííûé òèï ôàéëîâ. Âpåìÿ óïàêîâêè íåâàæíî, ãëàâíîå - îáúåì àpõèâà.
Ìîæåò ñóùåñòâóþò êàêèå-íèáóäü òàáëèöû, påçóëüòàòû òåñòîâ, ñòàòèñòè÷åñêèå äàííûå
.
Åñëè äà, òî ãäå áû èõ âçÿòü (BBS, Èíåò)?
See ya, All!
P.S. È êàêèå ïîñëåäíèå âåpñèè - _påëèçû_ àpõèâàòîpîâ (Win)RAR, (Win)Zip, Win(AR
J)?
Sergei
---
* Origin: (2:5030/346.100)
— RU.COMPRESS
From : Serge Akhmanov 2:5020/341.24 08 Jul 99 19:32:21
To : All
Subj : EXE packer ñ ïàðîëåì
Hello, All!
À åñòü ëè â ïpèpîäå EXE packerû ñ ïàpîëåì? Ò.å. àpõèâèpóåøü exe-øíèê, à pàñïàêî
âàòü ìîæíî òîëüêî çíàÿ ïàpîëü, ïpè ýòî çàïàêîâàííûé ôàéë ìîæíî ñâîáîäíî çàïóñêà
òü.
---
* Origin: <serge@akhmanov.mccme.ru> <akhmanov@math.msu.su> (2:5020/341.24)
— RU.COMPRESS
From : Vladimir Fedorov 2:4600/68.28 09 Jul 99 11:59:42
To : Serge Akhmanov
Subj : EXE packer ñ ïàðîëåì
Ïðèâåò Serge!
08 èþëÿ 1999 ãîäà (à áûëî òîãäà 17:32)
Serge Akhmanov â ñâîåì ïèñüìå ê All ïèñàë:
SA> À åñòü ëè â ïpèpîäå EXE packerû ñ ïàpîëåì? Ò.å. àpõèâèpóåøü exe-øíèê, à
SA> pàñïàêîâàòü ìîæíî òîëüêî çíàÿ ïàpîëü, ïpè ýòî çàïàêîâàííûé ôàéë ìîæíî
SA> ñâîáîäíî çàïóñêàòü.
Åñòü... íî íåìíîãî íå òî...
· *===================== Öèòèðóþ* _AVPack.doc 1.20_ *=====================* ·
> -E Compress and encrypt file(s)
Ïîìèìî ñæàòèÿ, èñõîäíûé ôàéë çàøèôðîâûâàåòñÿ ñ èñïîëüçîâàíèåì
ñëó÷àéíîãî ÷èñëà â êà÷åñòâå êëþ÷à. Ýòî çíà÷èòåëüíî çàòðóäíÿåò åãî
ðåàññåìáëèðîâàíèå èëè òðàññèðîâêó ñ ïîìîùüþ îòëàä÷èêîâ, ò.å. "âçëîì".
Òàêîé ôàéë óæå Å ìîæåò áûòü âîññòàíîâëåí ñ ïîìîùüþ êëþ÷à "-x" AVPACK-à.
Åñëè çàäàíû îäíîâðåìåííî êëþ÷è "-E" è "-X", êëþ÷ "-E" èãíîðèðóåòñÿ.
> -R Encrypt file(s) so that they'll be able to start on your PC only
Òî æå ñàìîå, ÷òî "-E", íî â êà÷åñòâå êëþ÷à äëÿ øèôðîâêè áåðåòñÿ
êîíòðîëüíàÿ ñóììà ó÷àñòêà ROM-BIOS Âàøåãî PC, ïîýòîìó ïðîãðàììû, ñæàòûå ñ
êëþ÷îì "-R", ñòàíîâÿòñÿ íåðàáîòîñïîñîáíûìè íà äðóãèõ ìàøèíàõ (ðàçâå ÷òî
ýòî ìàøèíû èç òîé æå ñàìîé ñåðèè). Ïðè çàïóñêå òàêèå ïðîãðàììû âûäàþò
ñîîáùåíèå
CRC error
è âîçâðàùàþò óïðàâëåíèå â DOS. Äàííûé êëþ÷ ìîæíî èñïîëüçîâàòü äëÿ çàùèòû
îò êîïèðîâàíèÿ Âàøèõ ñîáñòâåííûõ ïðîãðàìì. Ñîáëþäàéòå êðàéíþþ
îñòîðîæíîñòü ïðè èñïîëüçîâàíèè ýòîãî êëþ÷à!
· *=================== Êîíåö öèòàòû ==================* ·
Ñ óâàæåíèåì, Vladimir 09 èþëÿ 1999 ãîäà
-------------------------------------------------------+ *Ôðàçà äíÿ* ¦-
Ýëëèïñ - ýòî êðóã, âïèñàííûé â êâàäðàò äâà íà ÷åòûðå.
---------------------------------------------------------------------
--- GoldED/W32 3.0.1
* Origin: Õèðîñèìà'45 * ×åðíîáûëü'86 * Windows'2000 (2:4600/68.28)
— RU.COMPRESS
From : Alexander Alferowich 2:5031/14 11 Jul 99 15:07:24
To : Serge Akhmanov
Subj : EXE packer ñ ïàðîëåì
Ïðèâåò, Serge!
×åòâåðã Èþëü 08 1999 â 18:32, Serge Akhmanov ïèñàë ê All:
SA> À åñòü ëè â ïpèpîäå EXE packerû ñ ïàpîëåì? Ò.å. àpõèâèpóåøü exe-øíèê,
SA> à pàñïàêîâàòü ìîæíî òîëüêî çíàÿ ïàpîëü, ïpè ýòî çàïàêîâàííûé ôàéë
SA> ìîæíî ñâîáîäíî çàïóñêàòü.
Äàæå íà ìîé äèëåòàíñêèé âçãëÿä â ýòèõ âîïpîñàõ - åpóíäà ïîëíàÿ. Åñëè ôàéë
ñâîáîäíî çàïóñêàåòñÿ, òî çíà÷èò îí (ïàpîëü) íàõîäèòñÿ âíóòpè ôàéëà. Ïîïàëñÿ ìíå
îäèí pàç ôàéë, çàêpûòûé EPW 1.20 - ïàpîëü âíóòpè (pàñøèôpîâùèê ïpîïàò÷åííûé äëÿ
òàêîãî äåëà), à âñå ïpîãpàììû, ïûòàâøèåñÿ "ïpàâèëüíî" ýòó ïpîãpàììêó pàñêpûòü
(UNP, ñàì EPW) ñïpàøèâàëè ïàpîëü.
Âñåãî äîápîãî! :-) Àëåêñàíäåp
... Çäåñü íå íàäî äyìàòü,çäåñü íàäî ïèñàòü.
--- Cut here
* Origin: Fat Spirit of Little Spaceman (2:5031/14)
— RU.COMPRESS
From : Boris Batkin 2:5025/1024.8 12 Jul 99 01:23:16
To : Alexander Alferowich
Subj : EXE packer ñ ïàðîëåì
Hello, Alexander!
Âcê Èþë 11 1999 15:07, Alexander Alferowich wrote to Serge Akhmanov:
AA> Äàæå íà ìîé äèëåòàíñêèé âçãëÿä â ýòèõ âîïpîñàõ - åpóíäà ïîëíàÿ. Åñëè
AA> ôàéë ñâîáîäíî çàïóñêàåòñÿ, òî çíà÷èò îí (ïàpîëü) íàõîäèòñÿ âíóòpè
AA> ôàéëà.
ÿ, íàâåpíîå, ãëóïûé. íî, ñêîëüêî ìîæíî îòpàáàòûâàòü çàùèòó îò, ïàpäîí,
èäèîòà.
åñëè ïàpîëü ñíàpóæè, òî åñòü ñïîñîá ïpîâåpèòü, íàäî ëè çàïóñêàòü
íåâåpíî pàñøèôpîâàííûé êîä - ìîpàëü: åñëè åñòü CRC, òî ïpîáëåìà
påøàåòñÿ ïåpåáîpîì, åñëè åãî íåò - òî ïpîáëåìó påøàòü íå íàäî ;)
êñòàòè, ê âîïpîñó î äóáîâîì õàôìàíå. ÷òî ó íàñ åñòü íà òåìó õpàíåíèÿ
äåpåâà? à ìîæåò áûòü êòî-íèáóäü ïpîáîâàë õpàíèòü êàêóþ ëèáî ïpîèçâîäíóþ
îò ÷àñòîò? (êàê â àpèôìåòè÷åñêîì êîäåpå, ëþáîå èç äèàïàçîíà?) à òî óæ
áîëüíî áûñòpî â èòîãå pàáîòàåò...
Good bye. Boris
--- GoldED/386 3.00.LzyPnt+
* Origin: Bat_BBS (2:5025/1024.8)
— RU.COMPRESS
From : Dmitry Subbotin 2:5020/530.18 12 Jul 99 23:47:30
To : Vadim Yoockin
Subj : Compressors comparison tests [5/9]
Hi, Vadim!
"Vadim Yoockin" sendTo: "All" when: [12 Jul 99] msg:
VY> ===================== Hà÷àëî - 5.txt =====================
VY> Dictionary (ca.fdb) 627,761 (from foliant)
VY> ======================================================
VY> rkuc 1.04 o15 b x 122,908 1:16:25 1:20:49
VY> 777 0.04b1 m2 131,608 1:47:14 1:18:32
VY> rar 2.50 m4 210,153 12:20 0:64
VY> rar 2.50 m5 210,203 14:89 0:66
VY> rar/win 2.50 m5 md1024 211,121 13:38 0:89
VY> acb 2.00 u 238,658 1:42:35 1:43:23
VY> boa 0.58b m7 263,638 1:21:12 1:31:08
VY> boa 0.58b m11 264,902 1:26:02 1:35:70
Æ8-( )
À ïî÷åìó òàê?
taste you later,
morf
--- GoldED 2.50+
* Origin: morf@softhome.net (2:5020/530.18)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 13 Jul 99 10:44:46
To : Boris Batkin
Subj : EXE packer ñ ïàðîëåì
* Crossposted in RU.COMPRESS
Hello Boris!
Monday July 12 1999, Boris Batkin writes to Alexander Alferowich:
BB> êñòàòè, ê âîïpîñó î äóáîâîì õàôìàíå. ÷òî ó íàñ åñòü íà òåìó õpàíåíèÿ
BB> äåpåâà?
appnote.txt
BB> à ìîæåò áûòü êòî-íèáóäü ïpîáîâàë õpàíèòü êàêóþ ëèáî
BB> ïpîèçâîäíóþ îò ÷àñòîò? (êàê â àpèôìåòè÷åñêîì êîäåpå, ëþáîå èç
BB> äèàïàçîíà?) à òî óæ áîëüíî áûñòpî â èòîãå pàáîòàåò...
Èìåííî ïðîèçâîäíóþ è ïðîáîâàëè :) Hà÷èíàÿ ñ rar2, ìíîãèå àðõèâàòîðû õðàíÿò
ðàçíîñòè ÷àñòîò (òî÷íåå, ÷èñëà áèò) ïî ñðàâíåíèþ ñ ïðåäûäóùèì äåðåâîì. Ace -
òàê è âîâñå ðàçíèöó ïî ñðàâíåíèþ ñ ïðåä. ñèìâîëîì âíóòðè òîãî æå äåðåâà.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Äâîðåöêèé ðàçáóäèë Ãåðöåíà. Äåêàáðèñòû ïðîñïàëè... (2:5093/28.26)
— RU.COMPRESS
From : Oleg Zhitnik 2:4635/100.24 13 Jul 99 16:10:22
To : All
Subj : Àëãîðèòì ZIP'à
Hello, All!
Ëþäè, êòî ÷òî ñêàæåò ïî ïîâîäy ñàáæà?
Black Lion.
... À-à-à! Áà-áàõ! Øìÿê! Øëåï, øëåï, øëåï... This time for respawn.
--- GoldED/386 3.0.1
* Origin: Óäàëÿéòå âñå EXE-øíèêè, íå äàâàéòå âèðóñàì øàíñà! (2:4635/100.24)
— RU.COMPRESS
From : Aleksei Pogorily 2:5020/1504 14 Jul 99 12:30:51
To : Vadim Yoockin
Subj : Compressors comparison tests [1/9]
Hi Vadim!
At ïîíåä., 12 èþëÿ 1999, 10:18 Vadim Yoockin wrote to All:
VY> Hîâûå çàìåðû (3-é âûïóñê). Äîáàâëåíû:
VY> rkuc 1.04,
Òû pàññêàæè, ãäå åãî âçÿòü. Hà èçâåñòíîì ÷åøñêîì FTP îòñóòñòâóåò.
À õî÷åòñÿ póêàìè ïîùóïàòü. Î÷åíü.
Cheers, Aleksei [mailto:pogorily@hotmail.com]
--- GoldED/W32 2.51.A1026 UNREG
* Origin: Home of Fire (7-095)421-1201 Freq 00:00-05:30 MSK (2:5020/1504)
— RU.COMPRESS
From : Vadim Yoockin 2:5020/1042.50 14 Jul 99 21:20:49
To : Aleksei Pogorily
Subj : Compressors comparison tests [1/9]
Ïpèâåòñòâóþ, Aleksei!
14 Jul 99, Aleksei Pogorily ïèñàë ê Vadim Yoockin:
VY>> rkuc 1.04,
AP> Òû pàññêàæè, ãäå åãî âçÿòü. Hà èçâåñòíîì ÷åøñêîì FTP îòñóòñòâóåò.
AP> À õî÷åòñÿ póêàìè ïîùóïàòü. Î÷åíü.
Òàê ó àâòîðà: http://members.tripod.com/~malcolmt
Âñåãî äîáðîãî. Vadim Yoockin
... A Smith and Wesson beats four aces.
--- Ñòàpûé Äåä ñòîèìîñòüþ 3.00.Alpha4 äîïëàòà â ÑÊÂ UNREG
* Origin: yoockinv@mtu-net.ru (2:5020/1042.50)
— RU.COMPRESS
From : Vadim Yoockin 2:5020/1042.50 14 Jul 99 21:23:16
To : Dmitry Subbotin
Subj : Compressors comparison tests [5/9]
Ïpèâåòñòâóþ, Dmitry!
12 Jul 99, Dmitry Subbotin ïèñàë ê Vadim Yoockin:
VY>> Dictionary (ca.fdb) 627,761 (from foliant)
VY>> ======================================================
VY>> rkuc 1.04 o15 b x 122,908 1:16:25 1:20:49
VY>> 777 0.04b1 m2 131,608 1:47:14 1:18:32
VY>> rar 2.50 m4 210,153 12:20 0:64
VY>> rar 2.50 m5 210,203 14:89 0:66
VY>> rar/win 2.50 m5 md1024 211,121 13:38 0:89
VY>> acb 2.00 u 238,658 1:42:35 1:43:23
VY>> boa 0.58b m7 263,638 1:21:12 1:31:08
VY>> boa 0.58b m11 264,902 1:26:02 1:35:70
DS> Æ8-( )
DS> À ïî÷åìó òàê?
Ðàñêëàä, áàòþøêà, ðàñêëàä (c) àíåêäîò ;)
Ýòîò òåñò õàðàêòåðèçóåò óìåíèå êîìïðåññîðà îáíàðóæèâàòü è îáåçâðåæèâàòü
âñÿêèå ðàçíûå òàáëèöû â ôàéëå.
Èãîðü Ïàâëîâ ýòî âñåãäà óìåë, âîò è Òåéëîð íàó÷èëñÿ.
Âñåãî äîáðîãî. Vadim Yoockin
... A Smith and Wesson beats four aces.
--- Ñòàpûé Äåä ñòîèìîñòüþ 3.00.Alpha4 äîïëàòà â ÑÊÂ UNREG
* Origin: yoockinv@mtu-net.ru (2:5020/1042.50)
— RU.COMPRESS
From : alexey krehalev 2:5032/9 15 Jul 99 08:06:10
To : All
Subj : ufa
servus, All ?
à ãäå ñàìûé ñâåæèé ufa âûòÿíóòü ìîæíî?
èëè ìîæåò êòî-íþòü ïîäåëèòüñÿ ìûëîì/â ýõó.
--- [ ìîæåò âûéòè ïîãóëÿòü ÷òîá äåòåé íàìàëåâàòü (c) unh ] ---
* Origin: this is my msg record protect by registered law of russia (2:5032/9)
— RU.COMPRESS
From : Aleksei Pogorily 2:5020/1504 16 Jul 99 11:07:03
To : Vadim Yoockin
Subj : Compressors comparison tests [1/9]
Hi Vadim!
At ñpåäà, 14 èþëÿ 1999, 21:20 Vadim Yoockin wrote to Aleksei Pogorily:
VY>>> rkuc 1.04,
AP>> Òû pàññêàæè, ãäå åãî âçÿòü. Hà èçâåñòíîì ÷åøñêîì FTP îòñóòñòâóåò.
AP>> À õî÷åòñÿ póêàìè ïîùóïàòü. Î÷åíü.
VY> Òàê ó àâòîðà: http://members.tripod.com/~malcolmt
Ñïàñèáî. ×èñòûé ïàêåp îêàçàëñÿ, áåç âñÿêîãî ñåpâèñà. Hî íè÷åãî òàê èãpóøêà.
Ãëþêîâ ïîêà íå âûÿâëåíî.
Cheers, Aleksei [mailto:pogorily@hotmail.com]
--- GoldED/W32 2.51.A1026 UNREG
* Origin: Home of Fire (7-095)421-1201 Freq 00:00-05:30 MSK (2:5020/1504)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 17 Jul 99 13:42:34
To : Oleg Zhitnik
Subj : Àëãîðèòì ZIP'à
* Crossposted in RU.COMPRESS
Hello Oleg!
Tuesday July 13 1999, Oleg Zhitnik writes to All:
OZ> Ëþäè, êòî ÷òî ñêàæåò ïî ïîâîäy ñàáæà?
ftp://ftp.elf.stuba.sk/pub/pc/pack/zip23m.zip, unz541b.zip
Ýòî ãîòîâàÿ ðåàëèçàöèÿ. Îïèñàíèå àëãîðèòìà ðàñïàêîâêè - appnote.zip òàì æå.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Ïðåóñïåâàþùèé èíæåíåð (2:5093/28.26)
— RU.COMPRESS
From : Artem Navalon 2:5056/25.48 17 Jul 99 20:33:45
To : All
Subj : unknown archiver
Hello All.
Èìååòñÿ àðõîâàòîð (ARC by Goldsoft, ðàñïðîñòðàíåí íà ÑÐ/Ì). Àëãîðèòì óïàêîâêè è
ðàñïàêîâêè íåèçâåñòåí.
Ìîæíî ëè óãàäàòü ìåòîä óïàêîâêè, åñëè ïîäñîâûâàòü àðõèâàòîðó çàðàííåå èçâåñòíûå
äàííûå è ñìîòðåòü íà ðåçóëüòàò. Êàêîãî òèïà äàííûå áîëåå ïîäõîäÿò äëÿ ýòîé ðîëè
(ìíîãî íóëåé, åäèíèö è ò.ï.)?
Artem
--- GoldED/W32 3.00.Alpha5 UNREG
* Origin: SAD, BUT TRUE (2:5056/25.48)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 18 Jul 99 09:51:42
To : Artem Navalon
Subj : unknown archiver
* Crossposted in RU.COMPRESS
Hello Artem!
Saturday July 17 1999, Artem Navalon writes to All:
AN> Èìååòñÿ àðõîâàòîð (ARC by Goldsoft, ðàñïðîñòðàíåí íà ÑÐ/Ì). Àëãîðèòì
AN> óïàêîâêè è ðàñïàêîâêè íåèçâåñòåí. Ìîæíî ëè óãàäàòü ìåòîä óïàêîâêè,
AN> åñëè ïîäñîâûâàòü àðõèâàòîðó çàðàííåå èçâåñòíûå äàííûå è ñìîòðåòü íà
AN> ðåçóëüòàò. Êàêîãî òèïà äàííûå áîëåå ïîäõîäÿò äëÿ ýòîé ðîëè (ìíîãî
AN> íóëåé, åäèíèö è ò.ï.)?
Hàçâàíèå àëãîðèòìà óãàäàòü ìîæíî. Hî åñëè òåáÿ èíòåðåñóåò åãî ïîëíîå
ðåêîíñòðóèðîâàíèå, ò.å. íàïèñàíèå àíàëîãè÷íîé ïðîãðàììû, òî ïðîùå
äèçàññåìáëèðîâàòü ðàñïàêîâùèê.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Ïðåóñïåâàþùèé èíæåíåð (2:5093/28.26)
— RU.COMPRESS
From : Dani(i)l St. Lasoukov 2:5049/48 19 Jul 99 22:17:04
To : Artem Navalon
Subj : Re: unknown archiver
----- IDE ýòî ÿ?.. À, RU.COMPRESS !
Ïðèâåòñòâóþ Artem îò ÷èñòîãî ñåðäöà è ñî âñåãî ðàçìàõó !
Ñîîáðàæó-êà ÿ íà òðîèõ ñ Artem Navalon (2:5056/25.48@FIDOnet.org) è All...
AN> Èìååòñÿ àðõîâàòîð (ARC by Goldsoft, ðàñïðîñòðàíåí íà ÑÐ/Ì). Àëãîðèòì
AN> óïàêîâêè è ðàñïàêîâêè íåèçâåñòåí. Ìîæíî ëè óãàäàòü ìåòîä óïàêîâêè,
AN> åñëè ïîäñîâûâàòü àðõèâàòîðó çàðàííåå èçâåñòíûå äàííûå è ñìîòðåòü íà
AN> ðåçóëüòàò. Êàêîãî òèïà äàííûå áîëåå ïîäõîäÿò äëÿ ýòîé ðîëè (ìíîãî
AN> íóëåé, åäèíèö è ò.ï.)?
"Óæå êîòîpûé ãîä ó ìåíÿ â ïîäïîëå pàçäàåòñÿ ïîäçåìíûé ñòóê. Òîâàpèùè ó÷åíûå
, îá'ÿñíèòå, êàê ýòî ïpîèñõîäèò" (Ñ) ÀÁÑ, ÏHâÑ.
Hó, íàçâàíèå àëãîpèòìà â ïåpâîì ïpèáëèæåíèè ìîæíî óñòàíîâèòü êàê-íèáóäü. À
âîò ïîëíîñòüþ âîññòàíîâèòü àëãîpèòì, ïîäñîâûâàÿ äàííûå (ò.å. ïåpåáîpîì) - ýòî ÷
èñòîé âîäû òpàòà âpåìåíè. Ïpîùå âçÿòü îòëàä÷èê è òpàññèpîâàòü èñïîëíèìûé ìîäóëü
.
Ñ óâàæåíèåì, Dani(i)l St. Lasoukov. Ìèð Âàì !
... http://www.tol.ru/~daniil
--- daniil@cg.ru, ICQ: 29024455
* Origin: Mitten im Schimmer der spiegelnden Wellen... (2:5049/48)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 20 Jul 99 21:13:34
To : All
Subj : Èíòåðôåéñ äëÿ Delphi ê unrar.dll
* Crossposted in RU.COMPRESS
=============================================================================
* Forwarded by Bulat Ziganshin (2:5093/28.26)
* Area : CARBON_COPIES (CARBON_COPIES)
* From : Mark Shevchenko, 2:5093/27.77 (Tuesday July 20 1999 12:32)
* To : Bulat Ziganshin
* Subj : Re: D4
=============================================================================
* Forwarded from area 'CHELNY.PROGS'
Ïpèâåò, Bulat!
17 Jul 99 23:30, Bulat Ziganshin wrote to Mark Shevchenko:
BZ> Saturday July 17 1999, Mark Shevchenko writes to Bulat Ziganshin:
MS>>>> Óæå åñòü :) ß ñàì ëè÷íî unrar.pas íàáèâàë :)
BZ>>> Ýòî êàê? Èíòåpôåéñ ê unrar.c?
MS>> unrar.h ïåpåâ¸ë íà Ïàñêàëü.
BZ> Òî åñòü èíòåpôåéñ ê unrar.dll? Áëèí, çàøëè ìíå íà åìûë, à?
ß ëy÷øå ñþäà ïyëüíy, ïîñêîëüêy æåëàþùèé áîëåå, ÷åì îäèí. Äà è ôàéë äâà
êèëîáàéòà.
Îïèñàíèå Ðîøàëà ÿ ïåpåâ¸ë íà pyññêèé ÿçûê è, êàê áû ýòî ñêàçàòü, âìåñòî
ïpèìåpîâ íà Ñè, âñòàâèë ïpèìåpû íà Ïàñêàëå.
È îïèñàíèå è ýòîò ôàéë ìîæíî âçÿòü íà
http://fort.tatarstan.ru/~mountain/delphi/unrar.htm
=== Begin UnRAR.pas ===
unit UnRAR;
interface
uses
Windows;
const
ERAR_END_ARCHIVE = 10;
ERAR_NO_MEMORY = 11;
ERAR_BAD_DATA = 12;
ERAR_BAD_ARCHIVE = 13;
ERAR_UNKNOWN_FORMAT = 14;
ERAR_EOPEN = 15;
ERAR_ECREATE = 16;
ERAR_ECLOSE = 17;
ERAR_EREAD = 18;
ERAR_EWRITE = 19;
ERAR_SMALL_BUF = 20;
RAR_OM_LIST = 0;
RAR_OM_EXTRACT = 1;
RAR_SKIP = 0;
RAR_TEST = 1;
RAR_EXTRACT = 2;
RAR_VOL_ASK = 0;
RAR_VOL_NOTIFY = 1;
type
TRARHeaderData = record
ArcName: array [0..259] of Char;
FileName: array [0..259] of Char;
Flags: Word;
PackSize: Word;
UnpSize: Word;
HostOS: Word;
FileCRC: Word;
FileTime: Word;
UnpVer: Word;
Method: Word;
FileAttr: Word;
CmtBuf: PChar;
CmtBufSize: Word;
CmtSize: Word;
CmtState: Word;
end;
TRAROpenArchiveData = record
ArcName: PChar;
OpenMode: Word;
OpenResult: Word;
CmtBuf: PChar;
CmtBufSize: Word;
CmtSize: Word;
CmtStat: Word;
end;
TChangeVolProc = function(ArcName: PChar; Mode: Integer): Integer;
TProcessDataProc = function(Addr: Pointer; Size: Integer): Integer;
function RAROpenArchive(var ArchiveData: TRAROpenArchiveData): THandle;
stdcall;
function RARCloseArchive(ArcData: THandle): Integer; stdcall;
function RARReadHeader(ArcData: THandle; var HeaderData: TRARHeaderData):
Integer; stdcall;
function RARProcessFile(ArcData: THandle; Operation: Integer; DestPath: PChar;
DestName: PChar): Integer; stdcall;
procedure RARSetChangeVolProc(ArcData: THandle; ChangeVolProc: TChangeVolProc);
stdcall;
procedure RARSetProcessDataProc(ArcData: THandle; ProcessDataProc:
TProcessDataProc); stdcall;
procedure RARSetPassword(ArcData: THandle; Password: PChar); stdcall;
implementation
const
DLLName = 'unrar.dll';
function RAROpenArchive; external DLLName name 'RAROpenArchive';
function RARCloseArchive; external DLLName name 'RARCloseArchive';
function RARReadHeader; external DLLName name 'RARReadHeader';
function RARProcessFile; external DLLName name 'RARProcessFile';
procedure RARSetChangeVolProc; external DLLName name 'RARSetChangeVolProc';
procedure RARSetProcessDataProc; external DLLName name 'RARSetProcessDataProc';
procedure RARSetPassword; external DLLName name 'RARSetPassword';
end. === End UnRAR.pas ===
Äî ñâèäàíèÿ, Mark
-+- FMail/Win32 1.42/g
+ Origin: Wolf Hound IP (2:5093/27.77)
=============================================================================
Hello All!
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Ïðåóñïåâàþùèé èíæåíåð (2:5093/28.26)
— RU.COMPRESS
From : Bulat Ziganshin 2:5093/28.26 21 Jul 99 11:51:29
To : Þðèé
Subj : Êàê â *.cab äîáàâèòü ôàéë?
* Crossposted in RAR.SUPPORT
* Crossposted in RU.COMPRESS
Hello Þðèé!
Wednesday July 21 1999, Þðèé writes to All:
Þ> Èçâèíÿþñü çà âîçìîæíûé îôôòîïèê, íî ÷òî-òî äðóãèõ ðóññêèõ ýõ íå íàøåë
Þ> íà ïîäîáíóþ òåìó. Ïîäñêàæèòå, ÷åì ìîæíî äîáàâèòü ôàéë â àðõèâ *.cab,
cab-sdk.exe ïîèñêîâèêàìè ïîèùè, óñòàíîâèøü åãî - òàì åñòü â êîìïëåêòå
cabarc.exe. ×èñòîãî äîáàâëåíèÿ íåò, òîëüêî ðàñïàêîâàòü è ñîçäàòü àðõèâ ñ íóëÿ.
Åùå åñòü cabman (cabarc manager) è winace - gui-èíòåðôåéñû, ðàáîòàþùèå ñ ýòèìè
àðõèâàìè. Ëè÷íî ÿ winace ðåêîìåíäóþ, î÷åíü êðàñèâàÿ ïðîãðàììà è äåðæèò êó÷ó
ôîðìàòîâ.
Bulat, mailto:bulatz@fort.tatarstan.ru, ICQ 15872722
--- GoldED/386 2.50+
* Origin: Ïðåóñïåâàþùèé èíæåíåð (2:5093/28.26)