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Mpeg dash
1.
ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺑﻪ ﻧﮕﺎﻫﻲMPEG-DASH DASH
in a Nutshell
2.
ﺁﺗﻲ ﻭ ﻣﻮﺟﻮﺩ
ﻭﺿﻊ ﺑﻪ ﻧﮕﺎﻫﻲ
3.
ﻗﺮﺍﺭ ﺷﺮﺍﻳﻂ ﺍﻳﻦ
ﺩﺭ ﻫﻢ ﺷﻤﺎ ﺣﺘﻤﺎ ﺍﻳﺪ ﮔﺮﻓﺘﻪ
4.
ﻣﺘﻌﺎﺭﻑ ﻣﺸﻜﻼﺕ ﺑﻪ
ﻧﮕﺎﻫﻲ
5.
ﻛﻨﻮﻥ ﺗﺎ ﮔﺮﻓﺘﻪ
ﺻﻮﺭﺕ ﺗﻼﺷﻬﺎﻱ
6.
ﺗﻜﻨﻮﻟﻮژﻱ ﺑﻪ ﻧﮕﺎﻫﻲ
، ﺍﺑﺘﺪﺍAdaptive Bit Rate ﺑﻪ ﻭﻳﺪﺋﻮ ﺍﺯ ﻣﺘﻔﺎﻭﺗﻲ ﻫﺎﻱ ﺑﻴﺖ ﻧﺮﺥ ﺑﺎﻧﺪ ﭘﻬﻨﺎﻱ ﻭﺿﻌﻴﺖ ﺍﺯ ﻫﻮﺷﻤﻨﺪ ﺷﻨﺎﺧﺖ ﺑﻪ ﺗﻮﺟﻪ ﺑﺎ ﺭﻭﺵ ﺍﻳﻦ ﺩﺭ ﮔﺮﺩﺩ ﻣﻲ ﺍﺭﺍﺋﻪ ﻛﺎﺭﺑﺮ.ﺟﺮﻳﺎﻥ ﺷﺪﻥ ﻗﻄﻊ ﺍﺯ ﻛﻴﻔﻴﺖ ﺗﻐﻴﻴﺮ ﺑﺎ ﺍﻣﻜﺎﻥ ﺣﺪ ﺗﺎ ﻛﻨﺪ ﻣﻲ ﻛﻤﻚ ﺭﻭﺵ ﺍﻳﻦ ﺷﻮﺩ ﺟﻠﻮﮔﻴﺮﻱ ﺗﺼﻮﻳﺮ ﻭ ﺩﺍﺩﻩ.
7.
ﺭﻭﺵ ﺑﺎ ﻗﻴﺎﺱ
ﺩﺭ ﻣﺤﺘﻮﺍ ﻣﻨﻔﺮﺩ ﻓﺎﻳﻞ ﻳﻚ ﺩﺭﻳﺎﻓﺖABR
8.
MPEG-DASH ﺑﺮﻭﺩﻛﺴﺘﺮﻫﺎ ﺗﻮﺳﻂ ﻣﺨﺎﻃﺒﺎﻥ
ﺑﻪ ﻣﺤﺘﻮﺍ ﺗﺤﻮﻳﻞ ﺭﻭﺵ ﮔﺮﺍﻧﺘﺮﻳﻦ ﻭﻳﺪﺋﻮ ﺁﻧﻼﻳﻦ ﺗﺤﻮﻳﻞ ﻣﺤﺘﻮﺍﻱ ﺑﻪ ﺯﻧﺪﻩ ﺩﺳﺘﻴﺎﺑﻲCatch-upﺍﺳﺘﺮﻳﻢ ﺳﺮﻭﻳﺴﻬﺎﻱ ﺩﻳﮕﺮ ﻳﺎ ﻭOnlineﻭﻳﺪﺋﻮﻳﻲ ﻫﺎ ﺩﺳﺘﮕﺎﻩ ﺍﺯ ﺍﻱ ﮔﺴﺘﺮﺩﻩ ﺩﺍﻣﻨﻪ ﺗﻐﺬﻳﻪ ﺑﻪ ﻗﺎﺩﺭ ﻛﻪ ﺳﺮﻭﻳﺴﻬﺎ ﻭ ﻣﺤﺘﻮﺍ ﺍﺯ ﻣﺸﺘﺮﻙ ﺍﻛﻮﺳﻴﺴﺘﻢ ﻳﻚ ﻣﺎﻧﻨﺪPC،ﻫﺎTV،ﺗﺎﭘﻬﺎ ﻟﭗ ، ﻫﺎSTBﻫﻤﺮﺍﻩ ﺗﻠﻔﻦ ﻫﺎﻱ ﮔﻮﺷﻲ ﻭ ﻫﺎ ﺗﺒﻠﺖ ، ﺑﺎﺯﻱ ﻛﻨﺴﻮﻟﻬﺎﻱ ،ﻫﺎ DASH-MPEG ﺍﺳﺖ ﺷﺪﻩ ﺩﺍﺩﻩ ﺗﻮﺳﻌﻪ ﺍﻣﺮﻱ ﭼﻨﻴﻦ ﺍﻧﺠﺎﻡ ﺑﺮﺍﻱ.
9.
MPEG-DASH
10.
ﺷﺪﻥ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺭﻭﻧﺪ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ
ﺫﻳﻞ ﺩﺭ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺍﻳﻦMPEGﺍﺳﺖ ﻳﺎﻓﺘﻪ ﺗﻮﺳﻌﻪ. ژﺍﻧﻮﻳﻪ ﺩﺭ ﺁﻥ ﻧﻮﻳﺲ ﭘﻴﺶ2011ﻣﺎﻩ ﺩﺭ ﺁﻥ ﻧﻬﺎﻳﻲ ﻧﺴﺨﻪ ﻭ ﻧﻮﺍﻣﺒﺮ2011ﺍﺳﺖ ﺷﺪﻩ ﺍﺭﺍﺋﻪ. ﺗﻄﺎﺑﻘﻲ ﺑﺼﻮﺭﺕ ﻣﺤﺘﻮﺍ ﺍﺳﺘﺮﻳﻢ ﻛﺎﺭ ﺭﺍﻩ ﺍﻭﻟﻴﻦ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺍﻳﻦ Adaptive)(ﭘﺮﻭﺗﻜﻞ ﺑﺮ ﻣﺒﺘﻨﻲHTTPﺍﺳﺖ.
11.
ﺑﺮﺍﻱ ﻣﺤﺘﻮﺍ ﺗﺤﻮﻳﻞ
ﺯﻧﺠﻴﺮﻩAdaptive Streaming
12.
MPEG-DASH diagram
13.
ﻛﻼﻳﻨﺖ ﻭ ﺳﺮﻭﺭ
ﺗﻌﺎﻣﻞ ﻧﺤﻮﻩ
14.
ﻣﻄﻠﺐ ﺍﺻﻞ
15.
ﺷﺎﺧﺺ ﻭﻳﮋﮔﻴﻬﺎﻱMPEG-DASH ﻭ ﺗﻘﺎﺿﺎ
ﺍﺳﺎﺱ ﺑﺮ ،ﺯﻧﺪﻩ ﺳﺮﻭﻳﺴﻬﺎﻱTime shift ﺷﺎﻣﻞ ﻣﻮﺟﻮﺩ ﺳﺎﺧﺘﻬﺎﻱ ﺯﻳﺮ ﺍﺯ ﺍﺳﺘﻔﺎﺩﻩ ﺑﻮﺩﻥ ﺭﺍﺣﺖ ﻭ ﻛﺎﺭﺁ:CDN , Caches, NAT ﻓﺎﻳﺮﻭﺍﻝ ﻭ ﭘﺮﺍﻛﺴﻲ)ﺑﺮﺧﻼﻑRTP( ﻛﺎﺭﺑﺮ ﺗﻮﺳﻂ ﻛﺎﻣﻞ ﺑﺼﻮﺭﺕ ﺍﺳﺘﺮﻳﻢ ﺟﻠﺴﻪ ﻛﻨﺘﺮﻝ ﺍﻣﻜﺎﻥ ﻣﻴﺎﻥ ﻛﺮﺩﻥ ﺳﻮﺋﻴﭻ ﺍﺯ ﻣﺸﻜﻞ ﺑﺪﻭﻥ ﭘﺸﺘﻴﺒﺎﻧﻲTrackﻣﺨﺘﻠﻒ ﻫﺎﻱ ﺑﺮ ﻣﺒﺘﻨﻲ ﻓﺎﻳﻞ ﻓﺮﻣﺖISO)MPEG2_TS(ﻭﻣﺨﺘﻠﻒ ﻓﺮﻣﺘﻬﺎﻱ ﺑﺎ ﻫﺎﻳﻲ ﺳﮕﻤﻨﺖ ﺍﺯ ﭘﺸﺘﻴﺒﺎﻧﻲ ، ﺯﻳﺮﻧﻮﻳﺲ ، ﻣﺨﺘﻠﻒ ﻫﺎﻱ ﺯﺑﺎﻥ ﺑﻪ ﻧﺴﺒﺖ ﺗﻔﺎﻭﺕ ﺑﻲ ﻭ ﻛﺪﻙ ﺍﺯ ﻣﺴﺘﻘﻞ.... ﺳﺎﺯﻱ ﻓﺸﺮﺩﻩ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺍﺯ ﺍﺳﺘﻔﺎﺩﻩH.264
16.
ﺷﺎﺧﺺ ﻭﻳﮋﮔﻴﻬﺎﻱMPEG-DASH ﻭ ﻭﻳﺪﺋﻮ
ﭘﺬﻳﺮ ﻣﻘﻴﺎﺱ ﻛﺪﮔﺬﺍﺭﻱ ﺍﺯ ﭘﺸﺘﻴﺒﺎﻧﻲMultiview video coding
17.
ﭘﻴﭽﻴﺪﻩ ﺳﺮﻭﺭﻱ ﺗﺠﻬﻴﺰﺍﺕ
ﺍﺯ ﻧﻴﺎﺯ ﺑﻲ)ﺳﺮﻭﺭ ﻭﺏ ﺑﺎ ﺍﺻﻠﻲ ﻧﻘﺶ( ﺳﺮﻭﺭﻱ ﺗﺮﺍﻓﻴﻚ ﻛﺎﻫﺶ ﻣﻲ ﻛﺎﺭﺗﺮ ﭘﺮ ﻛﻼﻳﻨﺖﺷﻮﺩ
18.
MPDﭼﻴﺴﺖ؟ MEDIA PRESENTATION DESCRIPTION ﺑﺮ
ﻣﺒﺘﻨﻲ ﺳﻨﺪ ﻳﻚXMLﻗﻄﻌﺎﺕ ﻛﻨﺪ ﻣﻲ ﺗﺸﺮﻳﺢ ﻛﻪ ﺍﺳﺖ ﻣﺨﺘﻠﻒ)ﻭ ﺯﻣﺎﻥ ﻣﺎﻧﻨﺪ ﻣﺨﺘﻠﻒ ﺟﻬﺎﺕ ﺍﺯ(....ﻣﺪﻳﺎﻱ ﻳﻚ ﺩﺭ ﺩﺍﺭﻧﺪ ﻗﺮﺍﺭ ﻓﺎﻳﻞ ﺍﺯ ﻗﺴﻤﺘﻲ ﭼﻪ ﺩﺭ ﻣﻮﺟﻮﺩ. ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﺍﺯ ﻗﺒﻞDASHﺷﺪ ﻣﻲ ﻧﺎﻣﻴﺪﻩ ﻣﺎﻧﻴﻔﺴﺖ ﻓﺎﻳﻞ ﺍﻳﻦ ، ﺍﺳﺖ ﺁﻧﻬﺎ ﻣﺨﺘﺼﺎﺕ ﻭ ﻫﺎ ﺳﮕﻤﻨﺖ ﺍﺯ ﺍﻳﻨﺪﻛﺲ ﻳﻚ ﻭﺍﻗﻊ ﺩﺭ ﻭ.
19.
MEDIA PRESENTATION DESCRIPTION
20.
ﻓﺮﻣﺖ ﻳﻚStreamingﻣﺘﺤﺪﺳﺎﺯﻱ ﺗﻮﺳﻂ
ﺭﺍ ﺣﺼﻮﻝ ﻗﺎﺑﻞ ﻛﻴﻔﻴﺖ ﺣﺪﺍﻛﺜﺮ ﻛﻪ ﻣﺎﻧﻨﺪ ﻣﺨﺘﻠﻒ ﺍﺧﺘﺼﺎﺻﻲ ﻓﻨﺎﻭﺭﻳﻬﺎﻱ: oMicrosoft Smooth Streaming – Silver light oAdobe’s HTTP Dynamic Streaming oApple’s HLS(HTTP Live Streaming) ﺭﺳﺎﻧﺪ ﻣﻲ ﺍﻧﺠﺎﻡ ﺑﻪ ﻭﺍﺣﺪ ﻓﺎﻳﻞ ﻳﻚ ﻭ ﻣﻨﻔﺮﺩ ﺍﺳﺘﺎﻧﺪﺍﺭﺩ ﻳﻚ ﺗﺸﻜﻴﻞ ﻭ. ﺷﺎﺧﺺ ﻭﻳﮋﮔﻴﻬﺎﻱMPEG-DASH
21.
ﻛﻼﻳﻨﺖ ﺳﻤﺖ ﺍﺗﻔﺎﻗﺎﺕ
22.
ﻣﺘﻌﺎﺭﻑ ﻫﺎﻱ ﻛﺎﺭﺑﺮﺩ
23.
24.
ِ ﺳﻤﺖ ﺑﻪ
ﺣﺮﻛﺖDASH •ﺳﺎﻝ ژﺍﻧﻮﻳﻪ ﺍﻭﻝ ﺍﺯ ﻳﻮﺗﻴﻮﺏ٢٠١٣ﺍﺳﺖ ﻧﻤﻮﺩﻩ ﺍﺭﺍﺋﻪ ﭘﺎﻳﻪ ﺍﻳﻦ ﺑﺮ ﺭﺍ ﻫﺎﻳﺶ ﻭﻳﺪﺋﻮ ﺍﺯ ﻧﻴﻤﻲ
25.
ﻋﺮﺻﻪ ﺍﻳﻦ ﺍﺻﻠﻲ
ﺑﺎﺯﻳﮕﺮﺍﻥ
26.
ﺑﻌﺪﻱ ﻫﺎﻱ ﮔﺎﻡ
27.
ﺷﻤﺎ ﺗﻮﺟﻪ ﺍﺯ
ﺗﺸﮑﺮ ﺑﺎ m.h.bahreini@gmail.com
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