Béda révisi "Transport stream"

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[[Image:MPEG Transport Stream HL.svg|thumb|right|400px|Sababaraha program MPEG dihijikeun tuluy dikirim kana antena pamancer. Dina sistim TV digital siaran US, [[tuner ATSC|panarima ATSC]] tuluy ngadekode TS sarta midangkeunnana.]]
'''Transport stream''' ('''TS''', '''TP''', or '''MPEG-TS''') nyaeta hiji [[protokol komunikasi]] keur [[Audio digital|audio]], [[Video digital|video]], jeung [[Program and System Information Protocol|data]] nu ditetepkeun dina [[MPEG-2]] Bagean 1, Systems (standar [[International Organization for Standardization|ISO]]/[[International Electrotechnical Commission|IEC]] 13818-1[http://web.archive.org/web/20061113181708/http://neuron2.net/library/mpeg2/iso13818-1.pdf]). Tujuan rancangannana nyaeta keur ngidinan [[multipleksing]] video jeung audio digital sarta keur [[Audio video sync|nyinkronisasi kaluaran]]. Transport stream nawarkeun fitur keur [[deteksi jeung koreksi kasalahan|ngoreksi kasalahan]] pikeun transportasi ngaliwatan media nu henteu pati dipercaya, sarta dipake dina aplikasi siaran saperti [[DVB]] jeung [[standar ATSC|ATSC]]. Transport stream beda jeung [[program stream]], nu dirancang keur media nu bisa dipercaya kaws [[DVD]].
 
== Lapisan komunikasi ==
| pages = page xi or 11 according to PDF viewer
| url =http://neuron2.net/library/mpeg2/iso13818-1.pdf
|archiveurl=http://web.archive.org/web/20061113181708/http://neuron2.net/library/mpeg2/iso13818-1.pdf|archivedate=2006-11-13}}</ref>
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, but the communication medium may add some error correction bytes to the packet. DVb-ASI uses 204 bytes and ATSC 208 bytes as transport stream packet. (DVB t=8 and ATSC t=10 i.e. extra bytes = 2*t). ATSC transmission adds 20 bytes of [[Reed-Solomon]] [[forward error correction]] to create a packet that is 208 bytes long[http://broadcastengineering.com/infrastructure/Atsc-transmission-digital-20050620/]. The 188-byte packet size was originally chosen for compatibility with [[Asynchronous Transfer Mode|ATM systems]][http://www.chiariglione.org/mpeg/faq/mp2-sys/mp2-sys.htm#mp2-12] [[http://www.tek.com/site/ps/0,,21-14851-SPECS_EN,00.html]] .
{|class="wikitable"
|PID||13|| Packet ID
|-
|Scrambling control||2|| '00' = Not scrambled. &nbsp; The following per [[DVB]] spec <ref> [http://web.archive.org/web/20031006195927/http://www.bjpace.com.cn/data/tec/tec-DVB/DVB%20BlueBooks%20Standards/Specifications%20and%20Standards/conditional%20access/dvb-csa/A007.pdf DVB scrambling control bits defined. Page 6]</ref>: &nbsp; '01' = Reserved for future use, &nbsp; '10' = Scrambled with even key, &nbsp; '11' = Scrambled with odd key
|-
|Adaptation field exist||1||1 means presence of the adaptation field
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