Openbox ir HD & mpeg-4

[Tomux]

Kadangi tokia temute islindo tai noriu keleta klausimuku paklausti nes iki siol abejones.....
1 Ar skiriasi transliuojami kanalai mpeg4 ir HD formatu?
2 Ar imano su x820 idejus moduli matyt visus mpeg4 (ir HD jei jie nesiskiria)?

Nes vienur raso kad su openais neimanoma ziuret mpeg4, kiti raso kad su moduliu imanoma, kiti perka kitus imtuvus.... Kaip yra is tiesu?

[algis82]

moduli ikises matisi tik bus is mpeg4 i mpeg2 matisi
antras dalikas nera dar normaliu kanalu mpeg4 o tik formatas tai grubei sakant mpeg2 tik perkuodotas i mpeg4 vienu zodziu pornografija ir tieg

[Tomux]

Mmmm aisku zodziu matai kanalus bet ne mpeg4 kokybe.
O mpeg4 ir HD reiskia ta pati?

[diawollo]

Mpeg4 standartu koduojama High Definition vaizdo medziaga. Atsakant i tawo klausyma mpeg4 lygu Hd

[Tomux]

Aisku
Vadinasi nusipirkus OpenBox x820 ir moduli butu galima turet vaizda tiek is mpeg2 tiek is mpeg4 kanalu.

[einaris1]

Mpeg4 standartu koduojama High Definition vaizdo medziaga. Atsakant i tawo klausyma mpeg4 lygu Hd

nevisai teisingai. HD gali buti ir MPEG2 ir MPEG4 cia yra glaudinimo kodekas.
O HD reiskia vaizdo formata 720i 720p 1080p.
MPEG4 gali buti glaudinami ir paprastos raiskos kanalai, tai droma pas mus lietuvoje transliuojant DVB-T lietuviskus kanalus.

[Tomux]

O kaip suprast sita sat systems pasakyma:

820 - встроен один карто-приёмник для официальных карт и два CI шахта для модулей (поддержка триколора и модуля MPEG4 для просмотра 40Е)

Kodel ivardijama konkreciai 40E? O tai kaip kiti?

[laimonas]

todel visi vardyja,kad siame palydove yra dvidesimties rusisku kanalu paketas su mpeg4.kituose palydovuose tik keletas kalu mpeg4.ir tai dar neaisku kiek sis paketas eis laisvai(geras paketukas) ir dar-modulis mp4 nekonvertuoja HD.

[Tomux]

To laimonas
modulis mp4 nekonvertuoja HD

O tai ka jis daro tas modulis?
Man visai logiskai pasirode kad modulis mpeg4 konvertuoja i mpeg2 ir tada openas mpeg2 rodo vaizda

[masa]

Tomux, isiskaityk, ka tau auksciau parase:

HD yra High Definition Televizion - dideles raiskos televizija. SAT'e ji transliuojama 1080i (daugiausia)
SD - Standart Televizion - 576i.

Jei bandysi perduoti viena kanala nesuspausdamas- neuzteks nei palydovo galingumo, nei tiunerio galimybiu. Todel kanalas yra suspaudziamas. Naudojami du spaudimo budai - MPEG2 ir MPEG-4 (AVC, h.264). MPEG-4 galima labiau suspausti vaizda. Todel jis naudojamas HDTV. Jei jo nenaudoti - i viena transpoderi sutelpa maziau kanalu. O tai nenaudinga transliuotojasm. Su MPEG-4 galima suspausti ir SD kokybes kanalus. Tai ir daroma. BET dabartinis standarinis tiuneris hardwariskai dekoduoja tik MPEG-2. Tam ir naudojamas modulis, kuris MPEG-4 vercia i MPEG-2, kuri jau "supranta" SD SAT-tiuneris
HDTV naudoja daug daugiau perdavimo srauto, nei SD. Del to HDTV naudojamas DVB-S2 perdavimo budas, kai tuo paciu signalu perduodama daugiau duomenu (naudojama kita moduliacija, didesinis FEC ir t.t.) SD tiuneris (tavo aprasytas openbox) turi TIK DVB-S tiuneriu.

[Tomux]

Tai supratau taip:
Yra du perdavimo budai DVB-S ir DVB-S2
Nors tame reikale yra naudojamas vienas zodis MPEG-4 taciau suspaudimas skiriasi ir HD naudoja DVB-S2 perdavimo buda (didesnio srauto , raiskos) kurio OpenBox nesupranta.

Ir tikriausiai padarysiu teisinga isvada kad ateityje atsirandantys kanalai bus DVB-S2 bei siuo metu mastant modulis ir x820 nera perspektyvu

[dzeimsas]

o tu ysijunk analogine sat tv-astroj dar yra like keli kanalai.tai gausis tas pats HD(beweik),nes ten kanalai visai nesuspausti,nei mpeg 2 nei, nei mpeg 4 standartu.Neseniai buvau pasijungias Pace analoginy imtuva,tai per lcd visai cool rodo:ziurejau futbola, tai nera net kamuolio sleifo jam skrendant-ka gali pamatyt toj pacioj hdtv...

[dzeimsas]

o tu ysijunk analogine sat tv-astroj dar yra like keli kanalai.tai gausis tas pats HD(beweik),nes ten kanalai visai nesuspausti,nei mpeg 2 nei, nei mpeg 4 standartu.Neseniai buvau pasijungias Pace analoginy imtuva,tai per lcd visai cool rodo:ziurejau futbola, tai nera net kamuolio sleifo jam skrendant-ka gali pamatyt toj pacioj hdtv...

[Vytcka13]

Atsakymas labai paprastas, jei nor imatyti HD turi buti specialus isejimas, t.y. HDMI, o ikises moduli tu matysi tik paprastus kanalus koduotus mpeg-4, o HD vistiek nematysi!

Laukiam kol Openas isleis HD tiuneri!

[openbox]

Man irgi pasistojo klausimas
Tarkime įkišame modulį į 820 openą. Su mpeg-4 jis susitvarko.
O ar susitvarko tas pats modulis su DVB – S2?
Nes ukrainiečių Viasatas būtent ir transliuos mpeg-4, DVB – S2 standartu.
Ar veiks naujojo paketo dalinimas ant Openų?

[Sampos]

Abstract
Description
Advanced satellite channel modulation and video compression technologies offer a quantum leap in efficiency that fuels structural changes in satellite-delivered entertainment and connectivity across a wide range of scenarios. Applications that benefit from advanced modulation and/or video compression range from satellite HDTV distribution and contribution, to professional applications, to satellite broadband, to the emergence of new "HITS" platforms, content "push" and satellite backhaul.

DVB-S2 modulation and MPEG4 AVC (H.264) video compression have been widely accepted as the prevalent standardized means to optimize satellite links in video broadcast and point-to-multipoint networks. However, despite wide industry acceptance and validated bandwidth savings, questions remain as to what speed will these technologies be deployed, where and how for the relevant scenarios. Depending on application-specific considerations, including installed base of legacy components, network scale and new competing delivery models, the business case of deploying MPEG4 and/or DVB-S2 systems against matured MPEG2 and/or DVB-S can be challenged. Factors affecting migration include higher costs of advanced set top boxes outweighing space segment savings, region-specific satellite footprint characteristics preventing efficiencies from features like advanced code modulation (ACM) from realizing their full potential, local regulatory and completive issues discouraging the emergence of new cable/telco distribution platforms, and collective switching costs deterring or discouraging system migration.

The drivers and specific contextual considerations for each of the sub-sectors where advanced coding and modulation apply imply varying degrees of adoption speed and tipping points for hardware suppliers, operators and service providers to take into account when planning deployments in both greenfield and replacement scenarios. HDTV is clearly a strong driver toward the adoption of both DVB-S2 and MPEG4 in some key markets, and the leadership position that companies like DirecTV, BSkyB and EchoStar have taken on HDTV as an ARPU enhancer against cable VOD has helped accelerate a virtuous cycle in hardware development that stretches from semiconductor companies to equipment vendors.

Future proofing considerations of these technologies also become vital in the context of fast changing technology and increased diversity of network environments with new ways to access media. This NSR report analyzes the characteristics of each application, regional market considerations and trends to identify greenfield deployments and migration schedules for the implementation of DVB-S2 and MPEG4 satellite-based networks and systems.

Questions Answered in this Report Include:
What are the drivers and deterrents for each segment of the DVB-S2 and MPEG4 AVC business?
Which segments of the market and which regions are most likely to benefit from new MPEG4 and DVB-S2 implementations?
Which segments of the market and which regions are most likely to lead in system replacements?
Which regions are most likely to lead and benefit from new MPEG4/DVB-S2 distribution models?
What are the expected "tipping points" toward accelerating implementations and migrations?
How future-proof are DVB-S2 and MPEG4 AVC in the context of an increasing diversity of media access?
What are the migration considerations when switching from MPEG2 and/or DVB-S to MPEG4 and/or DVB-S2?
How long are migration processes expected to take based on application, regulatory and competitive regional considerations?
Who are the key hardware players, and what are the solutions offered?
Who are the leading service players, and what are the services offered?
What are the expected schedules for equipment/units deployments (hubs/headends and end units) for DVB-S2 and MPEG4 AVC implementations, based on application and in each regional market?
This Report Should Be Purchased By:
Satellite and Video Equipment Vendors
Systems Integrators
Established and New DTH Operators
Satellite Service Providers and Operators
Cable MSOs and Telcos Looking to Deploy Advanced HITS Platforms
Satellite Broadband Service Providers
Regulators Encouraging TV Digitization
Any Other Companies Affected by the Implementation of Either DVB-S2 or MPEG4 AVC Systems\


At the Wednesday, September 26 meeting...
Using DVB-S2 and MPEG-4 for Improved Operations for DSNG and Satellite Broadcast
At Wolfcoach in Auburn, MA
The presentation will cover an introduction to the satellite applications which can benefit from using DVB-S2 and MPEG-4 AVC. A review of each of these applications will be offered by looking at the requirements, and the “fit” of new technologies such as MPEG-4 AVC and DVB-S2. The presentation will cover the advantages and disadvantages of MPEG-4 AVC for these applications and issues which are pertinent. The issues will cover coding gain of MPEG4-AVC compared with MPEG2 in a low-latency environment, latency with MPEG4-AVC, the future and 4:2:2 / 10-bit / 1080p60 support with AVC.

The presentation will briefly cover the advantages of DVB-S2 compared with DVB-S, then focus on the less well known parts of the DVB-S2 standard such as VCM and ACM.

The presentation will provide two examples showing the relative savings that ACM can provide in a C-band and a KU band environment.

At the conclusion, Tandberg Television will show that the modulation advantages provided by ACM are extremely significant and are potentially more significant to those brought by adopting AVC

[Sampos]

Dar sita tematika

http://en.wikipedia.org/wiki/DVB-S2

[kruizas]

pas mane openbox f-300fta , tai kaip suprantu visiskas gaidys ir hd ne is tolo nekvepia. koki tiuneri patartumet uz prieinamesne kaina?

[skiela]

pas mane openbox f-300fta , tai kaip suprantu visiskas gaidys ir hd ne is tolo nekvepia. koki tiuneri patartumet uz prieinamesne kaina?

Del prieinamos kainos ar prieinamesnes tai cia jau kaip kisene.
O kas del tiunerio tai dabar veik tik Kathrein UFS910 svarstyti.

http://www.openbox.info/forum/viewtopic.php?t=2923

[kruizas]

kiek pinigu jis kainuoja irkur ju yra pirkt?

[mantos]

kiek pinigu jis kainuoja irkur ju yra pirkt?

http://www.lemantel.ch/lemantel/shop/pi8/pd113.html


su pristatymu pats galvoju is ten pirkti

[budvykis]

kruizas rašo:
kiek pinigu jis kainuoja irkur ju yra pirkt?





http://www.lemantel.ch/lemantel/shop/pi8/pd113.html


su pristatymu pats galvoju is ten pirkti Smile

Nu kad su pristatymu is viso gaunasi 350 euru...gana brangiai

[emirim]

Grazus zaisliukas..
http://www.satshop.tv/en/Satellite-Rece ... ::295.html
http://www.reel-multimedia.com/rmm-engl ... elles.html

[masa]

Man irgi pasistojo klausimas
Tarkime įkišame modulį į 820 openą. Su mpeg-4 jis susitvarko.
O ar susitvarko tas pats modulis su DVB – S2?
Nes ukrainiečių Viasatas būtent ir transliuos mpeg-4, DVB – S2 standartu.
Ar veiks naujojo paketo dalinimas ant Openų?

ne

[kruizas]

ar galit man kas padet, situacija tokia- ziurejau hotbird, sirius ir amos palydovus.amos tiesa sakant is viso neziurejau, todel viena galva noreciau persukt i kita palydova. viasat sport 3 kanalas mane labai domina del kases ir f-1. jis lyg ir astroj .ar man su openbox f-300iseitu matyt ta kanala? openbox programuojamas- kai pirkau man atkodavo nemazai kanalu. ar iseitu ten kazka pasarinti, pal auzti? ( ne uz aciu)