COMPARISON OF STREAMING TOOL - ???????G?? ???S - PowerPoint PPT Presentation

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COMPARISON OF STREAMING TOOL - ???????G?? ???S

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Title: COMPARISON OF STREAMING TOOL - ???????G?? ???S


1
COMPARISON OF STREAMING TOOL -???????G?? ???S
  • S?????s? p?????t?? te???????a? ????

?a??a ?at??µpa???? ??????? 2002
2
????? d??d?s?? a??e??? ß??te? st? ??ad??t??
  • ??ta????sµ?? ??a ????????µ??? p????f???s?
  • ???s? ???? µ??f?? te???????a?
  • ??t?p?s?asµ?? t?? ep?s?ept??
  • ???µ???s?, s??d?asµ??? µe d?as??das?
  • ?et?d?s? a??????? pe????af?? (s??e?te??e??)
  • ?p???ste?s? s???et?? d?ad??as???
  • (e??at?stas? µ?a? efa?µ????)

3
???te? st? ??ad??t?? ???e??as?
4
???ß??µata ?et?d?s?? ß??te?
  • 1 de?te????pt?? ß??te? µe?????? e????a? 640X480,
    ???µat???? ß????? 24 bit ?a? s????t?ta? a?a???s??
    30 frames/sec apa?te? ????t???t?ta t?? t???? t??
    26,4 MB
  • .St? ??ad??t??, ? ta??t?ta s??des?? µp??e? ?a
    ?e????? ap? ta 28?bps µ?s? modem ?a? ?a ft??e?
    sta 400kbps st?? s??d?se?? µe cable modem.

5
?p???s? ???ß??µat?? µet?d?s??
  • ????s? t?? ?????? ?????
  • S?µp?es? t?? a??e???

6
????s? t?? ?????? ?????
  • ISDN 128 kbps
  • Cable modem - 400 kbps
  • S??des? DSL 1,5 Mbps
  • ????f????? S??des? 400kbps

7
S?µp?es?
  • Sorenson video
  • RealVideo
  • Windows Media Video
  • ?.261
  • (videoconferencing, ISDN)
  • ?.263
  • (e?????? t?? ?.261 )
  • MPEG1
  • (cd-rom, vcd, 30fps, ¼ ??????)
  • MPEG2
  • (dvd, 30fps, p???? ?????)
  • MPEG4
  • (µe????t??? p??t?p?)

8
?e???????a ????
???s?µ?p??e?ta? e????? st?? ?a???sµ?? ?st? ??a ?a
µetaf??e? ß??te? µet? ap? apa?t?s?(on demand) ?
a?aµet?d?s? se p?a?µat??? ????? (real time).
9
  • ?a ded?µ??a st?????ta? ap? ??p???? e??p??et?t?
    st?? ?p?????st? pe??t?.
  • ? efa?µ??? pe??t? p??? ste??e? ta ded?µ??a st??
    ????? ??at?e? se ??a? ?ata????t? ???a
    de?te???epta (pe??p?? 10) ded?µ???? ß??te?,
    ??at? ???e? ?a e?asfa??se? s??e?? ??? a??µa ?a?
    st?? pe??pt?s? ?a??st???s?? ????? t?? pa??t??.

10
??O??????? ??????S?S ???????O?
  • TCP
  • UDP
  • HTTP
  • RTP
  • RTCP
  • RTSP

11
??????S? ???????O? ???S SERVER OR SERVERLESS
  • µ? ???s?µ?p???s? e?d???? e??p??et?t??, ?p?? ?
    µet?d?s? t?? ded?µ???? p?a?µat?p??e?ta? ?a??????
    µ?s? t?? web e??p??et?t? ?a? t?? p??t??????? HTTP
  • ? ?pa??? e??? e?d???? e??p??et?t? p?? a?a?aµß??e?
    ?a µetad?se? ta streaming p???µes??? ded?µ??a,
    ???s?µ?p????ta? ?????? p??t?????a p?a?µat????
    ??????, ?p?? t? RTSP

12
??????µµata a?apa?a????? ß??te?
  • Real player
  • Net show
  • VIVO Player
  • VDO live
  • NetTOOB
  • Cineweb
  • Bamba ?.a
  • ??e??a 1998
  • Quick time 5.0
  • Real player
  • Windows Media player
  • ??e??a 2002

13
QuickTime Apple Camp.
  • pa???eta? d??e??, e?t?? ap? t?? ??d?s? pro p??
    ??st??e? 29.99.
  • ? e??at?stas? t?? QuickTime e??a? a??d???
  • ?p??t?ta t?? efa?µ???? - ?s???? ????sµ???.
  • ?e????e? ?e?t?????e? t?? flash 4.
  • ??d?s? Pro pe????e? ?d?a?te?e? ?e?t?????e?,
    ?p?? µetat??p? wav se mp3, epe?e??as?a video,
    p??ß??? se p???? ?????

14
Windows Media Player 7.1
  • ?etaf??e? µe te???????a ???? ded?µ??a ß??te?
    ????
  • ?e????e? ?e?t?????e? Jukebox
  • ?p?t??pe? t?? a?t???af? cd st?? ?p?????st?
  • ??a?e????eta? ?a? ap????e?e? ta a??e?a se ??a
    µ????
  • ?e t?? ?d??? WindowsMedia.com e????? a?a??t?s?
    ?a? a?apa?a???? pe??e??µ???? ap? ?st?
  • ???sßas? se pe??ss?te???? ap? 1500
  • ?ad??f??????? sta?µ???.

15
Real Player - RealNetworks
  • RealOne ?µf???s? sa? XP
  • S??des? µe pe??ss?te???? ap? 2500 ?ad??f???????
    sta?µ???
  • ??????a ?pt???p???se??
  • O µ???? p?? t???e? se
  • Windows 95
  • ???ß??? se µ?s? ?????

16
?????? S?G???S?
17
?????? S?G???S?
18
?????? S?G???S?
  • ???????? ?????S? ?a p?????ta t?? RealNetworks
  • ???s? ???? t?? p??t???????
  • ????????µ??? ??s? ??a a?apa?a???? ???? ?a? ß??te?
  • ??a??p???t??? te????? ?p?st?????
  • S??des? µe 2500 d??t?a???? ?ad??f. sta?µ???
  • ?et?d?s? ß??te?, p???t?ta? DVD, p??ß??? se µ?s?
    ?????
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