VorbisRTP: Difference between revisions

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This page documents current consensus on the RTP payload format for Vorbis audio. This encapsulation is useful for interactive and multicast streaming.
This page documents current consensus on the RTP payload format for Vorbis audio. This encapsulation is useful for interactive and multicast streaming.


=== Drafts ===
=== Standard ===


[http://svn.xiph.org/tags/vorbis/libvorbis-1.1.0/doc/draft-kerr-avt-vorbis-rtp-03.txt draft-kerr-avt-vorbis-rtp-03] (now expired) was the last spec attempt and serves as the baseline for current work.
In 2008, the Vorbis RTP specification was accepted by the IETF's Network Working Group as RFC 5215. It may be found at
 
*[http://tools.ietf.org/rfc/rfc5215.txt rfc5215.txt]
Version 04 of the draft is being written using the XML markup defined in [http://xml.resource.org/public/rfc/html/rfc2629.html RFC2629]. Text and HTML versions of the current draft state are available here:
*[http://xiph.org/vorbis/doc/rfc5215.xml rfc5215.xml]
 
* [http://www.j-ogg.de/rfc/vorbis-rtp.txt draft-kerr-avt-vorbis-rtp-04.txt]
* [http://www.j-ogg.de/rfc/vorbis-rtp.html draft-kerr-avt-vorbis-rtp-04.html]


=== Issues ===
=== Issues ===


Basically, we pack Vorbis packets into RTP packets; that's been part of the draft for some time. The hard part is achieving reliable header transmission, since RTP is usually used in combination with a no-guaranteed-delivery networking mechanism. Equally important, in multicast the headers can't be prepended on connection the way icecast does with HTTP streams.
Basically, we pack Vorbis packets into RTP packets; that's been part of the draft for some time. The hard part is achieving reliable header transmission, since RTP is usually used in combination with a no-guaranteed-delivery networking mechanism. Equally important, in multicast the headers can't be prepended on connection the way Icecast does with HTTP streams.


The current suggestion (due to Jack) is that we dispense with the chaining feature of Ogg streams, and only allow a single set of vorbis headers per RTP stream. Since RTP is most often used to stream live or at least individual events, this is not a serious limitation. Even in the "simulated live" case encoded files often have the same set of codebooks, and those that do not can be re-encoded on the fly.
The current suggestion (due to Jack) is that we dispense with the chaining feature of Ogg streams, and only allow a single set of vorbis headers per RTP stream. Since RTP is most often used to stream live or at least individual events, this is not a serious limitation. Even in the "simulated live" case encoded files often have the same set of codebooks, and those that do not can be re-encoded on the fly.
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=== Implementation ===
=== Implementation ===


Tor-Einar Jarnbjo has an [http://www.j-ogg.de/rtp/index.html example implementation] that extends the ideas in the 03 draft a bit.
Tor-Einar Jarnbjo has an [http://www.j-ogg.de/rtp/index.html example implementation] that extends the ideas in the kerr 03 draft a bit.
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[[Category:Vorbis]]
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[http://www.shop263.com/i-42/139.htm 氟化镁]
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[http://www.shop263.com/i-42/141.htm 氟化氢铵]
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[http://www.shop263.com/i-42/149.htm 高碘酸钾]
[http://www.shop263.com/i-42/150.htm 高碘酸钠]
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[http://www.shop263.com/i-42/152.htm 工业硫酸铝]
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[http://www.shop263.com/i-42/154.htm 骨炭水磨粉]
[http://www.shop263.com/i-42/155.htm 固碱]
[http://www.shop263.com/i-42/156.htm 光刻胶]
[http://www.shop263.com/i-42/157.htm 硅酸乙酯]
[http://www.shop263.com/i-42/158.htm 硅烷偶联剂]
[http://www.shop263.com/i-42/159.htm 过碳酸钠]
[http://www.shop263.com/i-42/160.htm 过氧乙酸]
[http://www.shop263.com/i-42/161.htm 合成润滑油]
[http://www.shop263.com/i-42/162.htm 花肥]
[http://www.shop263.com/i-42/163.htm 还原银]
[http://www.shop263.com/i-42/164.htm 黄糊精]
[http://www.shop263.com/i-42/165.htm 机械油类]
[http://www.shop263.com/i-42/166.htm 基准试剂]
[http://www.shop263.com/i-42/167.htm 计量器具]
[http://www.shop263.com/i-42/168.htm 甲基丙烯酰胺]
[http://www.shop263.com/i-42/169.htm 甲基胍盐酸盐]
[http://www.shop263.com/i-42/170.htm 架盘药物天平]
[http://www.shop263.com/i-42/171.htm 焦棓酸]
[http://www.shop263.com/i-42/172.htm 教学试剂]
[http://www.shop263.com/i-42/173.htm 结晶四氯化锡]
[http://www.shop263.com/i-42/174.htm 金标快速诊断试剂]
[http://www.shop263.com/i-42/175.htm 金属表面处理添加剂]
[http://www.shop263.com/i-42/176.htm 精制盐酸]
[http://www.shop263.com/i-42/177.htm 酒石酸]
[http://www.shop263.com/i-42/178.htm 剧毒材料]
[http://www.shop263.com/i-42/179.htm 聚合氯化铝]
[http://www.shop263.com/i-42/180.htm 聚硫橡胶]
[http://www.shop263.com/i-42/181.htm 聚乙烯吡咯烷酮]
[http://www.shop263.com/i-42/182.htm 烤漆]
[http://www.shop263.com/i-42/183.htm 联吡啶]
[http://www.shop263.com/i-42/184.htm 临床诊断试剂]
[http://www.shop263.com/i-42/185.htm 磷酸]
[http://www.shop263.com/i-42/186.htm 磷酸二钠]
[http://www.shop263.com/i-42/187.htm 磷酸二氢铵]
[http://www.shop263.com/i-42/188.htm 磷酸氢二铵]
[http://www.shop263.com/i-42/189.htm 磷酸三丁酯]
[http://www.shop263.com/i-42/190.htm 磷酸三钠]
[http://www.shop263.com/i-42/191.htm 氧化铈]
[http://www.shop263.com/i-42/192.htm 氧化银]
[http://www.shop263.com/i-42/193.htm 液体化工溶剂]
[http://www.shop263.com/i-42/194.htm 一丙二醇]
[http://www.shop263.com/i-42/195.htm 衣康酸]
[http://www.shop263.com/i-42/196.htm 乙二胺四乙酸二钠]
[http://www.shop263.com/i-42/197.htm 乙二醇丁醚]
[http://www.shop263.com/i-42/198.htm 乙二醇甲醚]
[http://www.shop263.com/i-42/199.htm 乙酸镁]
[http://www.shop263.com/i-42/200.htm 乙酸银]
[http://www.shop263.com/i-42/201.htm 异丙醇胺]
[http://www.shop263.com/i-42/202.htm 异丙醇铝]
[http://www.shop263.com/i-42/203.htm 磷酸盐]
[http://www.shop263.com/i-42/204.htm 硫代硫酸钾硫氰酸钠]
[http://www.shop263.com/i-42/205.htm 硫化鈉]
[http://www.shop263.com/i-42/206.htm 硫氫化鈉]
[http://www.shop263.com/i-42/207.htm 硫氰酸盐]
[http://www.shop263.com/i-42/208.htm 硫酸]
[http://www.shop263.com/i-42/209.htm 硫酸钙]
[http://www.shop263.com/i-42/210.htm 硫酸钾]
[http://www.shop263.com/i-42/211.htm 硫酸铝铵]
[http://www.shop263.com/i-42/212.htm 硫酸镁]
[http://www.shop263.com/i-42/213.htm 硫酸钠]
[http://www.shop263.com/i-42/214.htm 硫酸亚铁]
[http://www.shop263.com/i-42/215.htm 硫酸盐]
[http://www.shop263.com/i-42/216.htm 硫酸银]
[http://www.shop263.com/i-42/217.htm 六偏磷酸钠]
[http://www.shop263.com/i-42/218.htm 氯化金]
[http://www.shop263.com/i-42/219.htm 氯化金钾]
[http://www.shop263.com/i-42/220.htm 氯化镁]
[http://www.shop263.com/i-42/221.htm 氯化亚锡]
[http://www.shop263.com/i-42/222.htm 氯化乙基三苯基膦]
[http://www.shop263.com/i-42/223.htm 氯化银]
[http://www.shop263.com/i-42/224.htm 氯乙醇]
[http://www.shop263.com/i-42/225.htm 马来酸树脂]
[http://www.shop263.com/i-42/226.htm 酶联免疫]
[http://www.shop263.com/i-42/227.htm 免疫胶乳比浊试剂]
[http://www.shop263.com/i-42/228.htm 免疫类诊断试剂]
[http://www.shop263.com/i-42/229.htm 钼酸盐]
[http://www.shop263.com/i-42/230.htm 内切酶]
[http://www.shop263.com/i-42/231.htm 钠盐]
[http://www.shop263.com/i-42/232.htm 尿蛋白试纸]
[http://www.shop263.com/i-42/233.htm 尿三联试纸]
[http://www.shop263.com/i-42/234.htm 尿糖试纸]
[http://www.shop263.com/i-42/235.htm 农药乳化剂]
[http://www.shop263.com/i-42/236.htm 偶联剂]
[http://www.shop263.com/i-42/237.htm 泡化碱]
[http://www.shop263.com/i-42/238.htm 培养基]
[http://www.shop263.com/i-42/239.htm 硼氢化钾]
[http://www.shop263.com/i-42/240.htm 硼氢化钠]
[http://www.shop263.com/i-42/241.htm 硼酸三丁酯]
[http://www.shop263.com/i-42/242.htm 硼酸三甲酯]
[http://www.shop263.com/i-42/243.htm 羟甲基丙烯酰胺]
[http://www.shop263.com/i-42/244.htm 氢碘酸]
[http://www.shop263.com/i-42/245.htm 氢氧化钠]
[http://www.shop263.com/i-42/246.htm 轻质氧化镁]
[http://www.shop263.com/i-42/247.htm 氰化银]
[http://www.shop263.com/i-42/248.htm 燃油]
[http://www.shop263.com/i-42/249.htm 溶剂]
[http://www.shop263.com/i-42/250.htm 溶剂油]
[http://www.shop263.com/i-42/251.htm 润滑脂]
[http://www.shop263.com/i-42/252.htm 三苯基膦]
[http://www.shop263.com/i-42/253.htm 三苯基氧膦]
[http://www.shop263.com/i-42/254.htm 三氟化硼乙醇]
[http://www.shop263.com/i-42/255.htm 三氟化硼乙腈]
[http://www.shop263.com/i-42/256.htm 三氟化硼乙醚]
[http://www.shop263.com/i-42/257.htm 异辛烷]
[http://www.shop263.com/i-42/258.htm 硬脂酸]
[http://www.shop263.com/i-42/259.htm 油漆涂料]
[http://www.shop263.com/i-42/260.htm 油田助剂]
[http://www.shop263.com/i-42/261.htm 有机碘化合物]
[http://www.shop263.com/i-42/262.htm 有机过氧化物高分子塑料助剂]
[http://www.shop263.com/i-42/263.htm 有机通用试剂]
[http://www.shop263.com/i-42/264.htm 右旋糖酐硫酸酯]
[http://www.shop263.com/i-42/265.htm 右旋糖酐]
[http://www.shop263.com/i-42/266.htm 月桂氮卓酮]
[http://www.shop263.com/i-42/267.htm 粘合剂]
[http://www.shop263.com/i-42/268.htm 珍珠岩]
[http://www.shop263.com/i-42/269.htm 正丙醇胺]
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[http://www.shop263.com/i-43/1.htm 己二酰氯]
[http://www.shop263.com/i-43/2.htm 甲醇钠]
[http://www.shop263.com/i-43/3.htm 甲基丙烯酰氯]
[http://www.shop263.com/i-43/4.htm 甲基橙皮甙]
[http://www.shop263.com/i-43/5.htm 甲基磺酰胺]
[http://www.shop263.com/i-43/6.htm 甲基磺酰氯]
[http://www.shop263.com/i-43/7.htm 甲基三嗪酮]
[http://www.shop263.com/i-43/8.htm 甲壳素]
[http://www.shop263.com/i-43/9.htm 甲壳助剂]
[http://www.shop263.com/i-43/10.htm 甲状腺粉]
[http://www.shop263.com/i-43/11.htm 健康]
[http://www.shop263.com/i-43/12.htm 绞股蓝总甙]
[http://www.shop263.com/i-43/13.htm 酵母浸膏]
[http://www.shop263.com/i-43/14.htm 金银花]
[http://www.shop263.com/i-43/15.htm 金银花浸膏]
[http://www.shop263.com/i-43/16.htm 金银花提物]
[http://www.shop263.com/i-43/17.htm 金属净洗剂]
[http://www.shop263.com/i-43/18.htm 精氨酸]
[http://www.shop263.com/i-43/19.htm 精氨酸盐酸盐]
[http://www.shop263.com/i-43/20.htm 精馏豆油酸]
[http://www.shop263.com/i-43/21.htm 精酶]
[http://www.shop263.com/i-43/22.htm 精细化学品]
[http://www.shop263.com/i-43/23.htm 核酸片]
[http://www.shop263.com/i-43/24.htm 聚丙酸]
[http://www.shop263.com/i-43/25.htm 聚合硫酸铁]
[http://www.shop263.com/i-43/26.htm 聚醚消沫剂]
[http://www.shop263.com/i-43/27.htm 聚乳酸]
[http://www.shop263.com/i-43/28.htm 聚乙烯内膜袋制品]
[http://www.shop263.com/i-43/29.htm 决明子]
[http://www.shop263.com/i-43/30.htm 咔唑]
[http://www.shop263.com/i-43/31.htm 卡拉胶]
[http://www.shop263.com/i-43/32.htm 抗体蛋白多肽]
[http://www.shop263.com/i-43/33.htm 抗体芯片]
[http://www.shop263.com/i-43/34.htm 抗肿瘤原料药]
[http://www.shop263.com/i-43/35.htm 壳寡糖]
[http://www.shop263.com/i-43/36.htm 壳聚糖]
[http://www.shop263.com/i-43/37.htm 壳聚糖盐酸盐]
[http://www.shop263.com/i-43/38.htm 苦参碱]
[http://www.shop263.com/i-43/39.htm 苦参素]
[http://www.shop263.com/i-43/40.htm 苦瓜]
[http://www.shop263.com/i-43/41.htm 昆仑酶]
[http://www.shop263.com/i-43/42.htm 酪氨酸]
[http://www.shop263.com/i-43/43.htm 雷公藤提取物]
[http://www.shop263.com/i-43/44.htm 亮氨酸]
[http://www.shop263.com/i-43/45.htm 林可霉素]
[http://www.shop263.com/i-43/46.htm 临床诊断试剂]
[http://www.shop263.com/i-43/47.htm 淋巴细胞分离液微孔滤膜]
[http://www.shop263.com/i-43/48.htm 硫苄基烟酸]
[http://www.shop263.com/i-43/49.htm 硫代乙酸]
[http://www.shop263.com/i-43/50.htm 硫化促进剂NS]
[http://www.shop263.com/i-43/51.htm 硫酸软骨素]
[http://www.shop263.com/i-43/52.htm 硫酸亚铁]
[http://www.shop263.com/i-43/53.htm 葡萄糖酸钙]
[http://www.shop263.com/i-43/54.htm 鲨肝醇]
[http://www.shop263.com/i-43/55.htm 山梨醇]
[http://www.shop263.com/i-43/56.htm 山楂]
[http://www.shop263.com/i-43/57.htm 山楂叶提取物]
[http://www.shop263.com/i-43/58.htm 山楂叶总黄酮]
[http://www.shop263.com/i-43/59.htm 蛇床子素]
[http://www.shop263.com/i-43/60.htm 蛇床子提取物]
[http://www.shop263.com/i-43/61.htm 砷酸]
[http://www.shop263.com/i-43/62.htm 生化级蛋白胨]
[http://www.shop263.com/i-43/63.htm 生化试剂]
[http://www.shop263.com/i-43/64.htm 生姜]
[http://www.shop263.com/i-43/65.htm 生物安全柜]
[http://www.shop263.com/i-43/66.htm 生物发酵]
[http://www.shop263.com/i-43/67.htm 生物缓冲液]
[http://www.shop263.com/i-43/68.htm 生物酶]
[http://www.shop263.com/i-43/69.htm 生物试剂]
[http://www.shop263.com/i-43/70.htm 生物碳酸钙]
[http://www.shop263.com/i-43/71.htm 生物添加剂]
[http://www.shop263.com/i-43/72.htm 食品级蛋白胨]
[http://www.shop263.com/i-43/73.htm 试剂盒]
[http://www.shop263.com/i-43/74.htm 试剂级蛋白胨]
[http://www.shop263.com/i-43/75.htm 兽药]
[http://www.shop263.com/i-43/76.htm 叔丁基苯胺]
[http://www.shop263.com/i-43/77.htm 输液]
[http://www.shop263.com/i-43/78.htm 薯芋皂素]
[http://www.shop263.com/i-43/79.htm 薯蓣皂素]
[http://www.shop263.com/i-43/80.htm 双花连翘提取物]
[http://www.shop263.com/i-43/81.htm 双烯]
[http://www.shop263.com/i-43/82.htm 双烯醇酮]
[http://www.shop263.com/i-43/83.htm 双乙烯酮]
[http://www.shop263.com/i-43/84.htm 水飞蓟]
[http://www.shop263.com/i-43/85.htm 水飞蓟宾]
[http://www.shop263.com/i-43/86.htm 水飞蓟素]
[http://www.shop263.com/i-43/87.htm 水溶性氮酮]
[http://www.shop263.com/i-43/88.htm 水溶性水飞蓟宾]
[http://www.shop263.com/i-43/89.htm 水溶性水飞蓟素]
[http://www.shop263.com/i-43/90.htm 水性涂料]
[http://www.shop263.com/i-43/91.htm 水杨甙]
[http://www.shop263.com/i-43/92.htm 信号转导]
[http://www.shop263.com/i-43/93.htm 熊果苷]
[http://www.shop263.com/i-43/94.htm 熊果苷单酯]
[http://www.shop263.com/i-43/95.htm 修饰酶]
[http://www.shop263.com/i-43/96.htm 溴乙烷]
[http://www.shop263.com/i-43/97.htm 絮凝剂]
[http://www.shop263.com/i-43/98.htm 烟酸]
[http://www.shop263.com/i-43/99.htm 盐酸羟亚胺]
[http://www.shop263.com/i-43/100.htm 盐酸小檗碱]
[http://www.shop263.com/i-43/101.htm 衍生物]
[http://www.shop263.com/i-43/102.htm 椰子壳]
[http://www.shop263.com/i-43/103.htm 叶酸]
[http://www.shop263.com/i-43/104.htm 医药原料]
[http://www.shop263.com/i-43/105.htm 医用消毒药剂]
[http://www.shop263.com/i-43/106.htm 胰岛素干粉]
[http://www.shop263.com/i-43/107.htm 有机硅材料]
[http://www.shop263.com/i-43/108.htm 玉米超氧化物岐化酶]
[http://www.shop263.com/i-43/109.htm 原料药]
[http://www.shop263.com/i-43/110.htm 月见草油]
[http://www.shop263.com/i-43/111.htm 越橘]
[http://www.shop263.com/i-43/112.htm 皂素]
[http://www.shop263.com/i-43/113.htm 皂用脂肪酸]
[http://www.shop263.com/i-43/114.htm 正缬氨酸]
[http://www.shop263.com/i-43/115.htm 终瑞产品]
[http://www.shop263.com/i-43/116.htm 重质碳酸钙]
[http://www.shop263.com/i-43/117.htm 紫杉]
[http://www.shop263.com/i-43/118.htm 紫杉醇]
[http://www.shop263.com/i-43/119.htm 棕榈壳活性炭]
[http://www.shop263.com/i-43/120.htm 组织芯片]
[http://www.shop263.com/i-43/121.htm DEET避蚊胺]
[http://www.shop263.com/i-43/122.htm DNA芯片]
[http://www.shop263.com/i-43/123.htm HZB植物生长剂]
[http://www.shop263.com/i-43/124.htm KN甘露胶]
[http://www.shop263.com/i-43/125.htm PET塑钢带]
[http://www.shop263.com/i-43/126.htm TCM复方]
[http://www.shop263.com/i-43/127.htm VE烟酸酯]
[http://www.shop263.com/i-43/128.htm 阿卡明]
[http://www.shop263.com/i-43/129.htm 阿维菌素]
[http://www.shop263.com/i-43/130.htm 氨基葡萄糖]
[http://www.shop263.com/i-43/131.htm 氨基葡萄糖盐酸盐]
[http://www.shop263.com/i-43/132.htm 氨基酸保护剂]
[http://www.shop263.com/i-43/133.htm 氨基酸类]
[http://www.shop263.com/i-43/134.htm 氨基酸衍生物类]
[http://www.shop263.com/i-43/135.htm 氨基涂料]
[http://www.shop263.com/i-43/136.htm 氨基腺嘌呤核苷]
[http://www.shop263.com/i-43/137.htm 奥拉米特]
[http://www.shop263.com/i-43/138.htm 白蜂蜡]
[http://www.shop263.com/i-43/139.htm 白蒺藜提取物]
[http://www.shop263.com/i-43/140.htm 白藜芦醇]
[http://www.shop263.com/i-43/141.htm 半胱氨酸]
[http://www.shop263.com/i-43/142.htm 半胱按酸盐酸盐无水物]
[http://www.shop263.com/i-43/143.htm 半胱胺酸盐酸盐]
[http://www.shop263.com/i-43/144.htm 半合成原料药]
[http://www.shop263.com/i-43/145.htm 包衣维生素C]
[http://www.shop263.com/i-43/146.htm 保护性氨基酸]
[http://www.shop263.com/i-43/147.htm 保健食品]
[http://www.shop263.com/i-43/148.htm 保肾康]
[http://www.shop263.com/i-43/149.htm 苯乙酰氯]
[http://www.shop263.com/i-43/150.htm 表面活性剂]
[http://www.shop263.com/i-43/151.htm 丙氨酸]
[http://www.shop263.com/i-43/152.htm 丙基磺酰胺]
[http://www.shop263.com/i-43/153.htm 丙基磺酰氯]
[http://www.shop263.com/i-43/154.htm 丙基硫氧嘧啶]
[http://www.shop263.com/i-43/155.htm 丙酸甲酯]
[http://www.shop263.com/i-43/156.htm 丙酸乙酯]
[http://www.shop263.com/i-43/157.htm 丙烯酸羟丙酯]
[http://www.shop263.com/i-43/158.htm 丙烯酸涂料]
[http://www.shop263.com/i-43/159.htm 彩电级硝酸钠]
[http://www.shop263.com/i-43/160.htm 菜油酸]
[http://www.shop263.com/i-43/161.htm 超净台]
[http://www.shop263.com/i-43/162.htm 成核剂]
[http://www.shop263.com/i-43/163.htm 橙皮甙]
[http://www.shop263.com/i-43/164.htm 赤霉素GA3]
[http://www.shop263.com/i-43/165.htm 赤霉素GA4]
[http://www.shop263.com/i-43/166.htm 川蜡]
[http://www.shop263.com/i-43/167.htm 次氯酸钠]
[http://www.shop263.com/i-43/168.htm 粗甘油]
[http://www.shop263.com/i-43/169.htm 醋酸钠]
[http://www.shop263.com/i-43/170.htm 大豆异黄酮]
[http://www.shop263.com/i-43/171.htm 丹参提取物]
[http://www.shop263.com/i-43/172.htm 丹皮酚]
[http://www.shop263.com/i-43/173.htm 单克隆]
[http://www.shop263.com/i-43/174.htm 胆酸]
[http://www.shop263.com/i-43/175.htm 蛋氨酸]
[http://www.shop263.com/i-43/176.htm 蛋白]
[http://www.shop263.com/i-43/177.htm 罗汉果甜甙]
[http://www.shop263.com/i-43/178.htm 麦芽糖醇]
[http://www.shop263.com/i-43/179.htm 煤质]
[http://www.shop263.com/i-43/180.htm 酶工艺产业化]
[http://www.shop263.com/i-43/181.htm 酶和辅酶]
[http://www.shop263.com/i-43/182.htm 酶制剂]
[http://www.shop263.com/i-43/183.htm 密蒙花]
[http://www.shop263.com/i-43/184.htm 棉油酸]
[http://www.shop263.com/i-43/185.htm 免疫]
[http://www.shop263.com/i-43/186.htm 免疫球蛋白胶囊]
[http://www.shop263.com/i-43/187.htm 免疫学]
[http://www.shop263.com/i-43/188.htm 魔芋丁]
[http://www.shop263.com/i-43/189.htm 魔芋胶]
[http://www.shop263.com/i-43/190.htm 茉莉花]
[http://www.shop263.com/i-43/191.htm 茉莉花净油]
[http://www.shop263.com/i-43/192.htm 木瓜蛋白酶]
[http://www.shop263.com/i-43/193.htm 木蜡]
[http://www.shop263.com/i-43/194.htm 木立芦荟粉]
[http://www.shop263.com/i-43/195.htm 木糖醇]
[http://www.shop263.com/i-43/196.htm 木质]
[http://www.shop263.com/i-43/197.htm 钼酸铵]
[http://www.shop263.com/i-43/198.htm 内切酶]
[http://www.shop263.com/i-43/199.htm 纳米抗菌颗粒]
[http://www.shop263.com/i-43/200.htm 纳米远红外颗粒]
[http://www.shop263.com/i-43/201.htm 奈福泮]
[http://www.shop263.com/i-43/202.htm 萘油]
[http://www.shop263.com/i-43/203.htm 柠檬酸]
[http://www.shop263.com/i-43/204.htm 柠檬酸钙]
[http://www.shop263.com/i-43/205.htm 牛油]
[http://www.shop263.com/i-43/206.htm 农药增效剂]
[http://www.shop263.com/i-43/207.htm 农药中间体]
[http://www.shop263.com/i-43/208.htm 女贞子]
[http://www.shop263.com/i-43/209.htm 培养基]
[http://www.shop263.com/i-43/210.htm 培养基用胆盐]
[http://www.shop263.com/i-43/211.htm 培养箱]
[http://www.shop263.com/i-43/212.htm 片剂胶]
[http://www.shop263.com/i-43/213.htm 水针]
[http://www.shop263.com/i-43/214.htm 司盘]
[http://www.shop263.com/i-43/215.htm 四氮唑]
[http://www.shop263.com/i-43/216.htm 四氢呋喃]
[http://www.shop263.com/i-43/217.htm 饲料酶制剂]
[http://www.shop263.com/i-43/218.htm 松树皮提取物]
[http://www.shop263.com/i-43/219.htm 速溶茶粉]
[http://www.shop263.com/i-43/220.htm 羧化壳聚糖]
[http://www.shop263.com/i-43/221.htm 羧甲淀粉钠]
[http://www.shop263.com/i-43/222.htm 羧甲基纤维素钠]
[http://www.shop263.com/i-43/223.htm 桃胶]
[http://www.shop263.com/i-43/224.htm 特戊酰氯]
[http://www.shop263.com/i-43/225.htm 特种化学试剂]
[http://www.shop263.com/i-43/226.htm 提取物]
[http://www.shop263.com/i-43/227.htm 蹄壳粒]
[http://www.shop263.com/i-43/228.htm 替莫唑胺]
[http://www.shop263.com/i-43/229.htm 天然产物标准对照品]
[http://www.shop263.com/i-43/230.htm 天然蜂蜡]
[http://www.shop263.com/i-43/231.htm 异丁酰氯]
[http://www.shop263.com/i-43/232.htm 益生素]
[http://www.shop263.com/i-43/233.htm 淫羊藿提取物]
[http://www.shop263.com/i-43/234.htm 银杏黄酮]
[http://www.shop263.com/i-43/235.htm 银杏叶]
[http://www.shop263.com/i-43/236.htm 银杏叶干浸膏]
[http://www.shop263.com/i-43/237.htm 银杏叶提取物]
[http://www.shop263.com/i-43/238.htm 印染糊料]
[http://www.shop263.com/i-43/239.htm 硬胶囊剂]
[http://www.shop263.com/i-43/240.htm 硬脂酸]
[http://www.shop263.com/i-43/241.htm 油茶皂素]
[http://www.shop263.com/i-43/242.htm 左旋多巴]
[http://www.shop263.com/i-43/243.htm 植物油]
[http://www.shop263.com/i-43/244.htm 蛋白测序]
[http://www.shop263.com/i-43/245.htm 蛋白胨]
[http://www.shop263.com/i-43/246.htm 蛋白粉]
[http://www.shop263.com/i-43/247.htm 蛋白芯片]
[http://www.shop263.com/i-43/248.htm 蛋白质]
[http://www.shop263.com/i-43/249.htm 蛋黄粉]
[http://www.shop263.com/i-43/250.htm 蛋黄卵磷脂]
[http://www.shop263.com/i-43/251.htm 蛋黄免疫球蛋白IgG]
[http://www.shop263.com/i-43/252.htm 氮杂胞嘧啶]
[http://www.shop263.com/i-43/253.htm 氮杂胞嘧啶核苷]
[http://www.shop263.com/i-43/254.htm 低分子聚乙烯蜡]
[http://www.shop263.com/i-43/255.htm 低铁半胱氨酸盐酸盐]
[http://www.shop263.com/i-43/256.htm 低温箱体]
[http://www.shop263.com/i-43/257.htm 地克珠利]
[http://www.shop263.com/i-43/258.htm 碘伏消毒液]
[http://www.shop263.com/i-43/259.htm 碘醚柳胺]
[http://www.shop263.com/i-43/260.htm 丁基磺酰胺]
[http://www.shop263.com/i-43/261.htm 丁基磺酰氯]
[http://www.shop263.com/i-43/262.htm 丁酰氯]
[http://www.shop263.com/i-43/263.htm 动物体提取物]
[http://www.shop263.com/i-43/264.htm 动物油酸]
[http://www.shop263.com/i-43/265.htm 动植物提取原料药]
[http://www.shop263.com/i-43/266.htm 对羟基苯甲醇]
[http://www.shop263.com/i-43/267.htm 对硝基苯砷酸]
[http://www.shop263.com/i-43/268.htm 多环阿拉伯胶]
[http://www.shop263.com/i-43/269.htm 多克隆一级抗体]
[http://www.shop263.com/i-43/270.htm 多肽合成]
[http://www.shop263.com/i-43/271.htm 多肽类]
[http://www.shop263.com/i-43/272.htm 多肽缩合剂]
[http://www.shop263.com/i-43/273.htm 多西环素]
[http://www.shop263.com/i-43/274.htm 二苯甲酮]
[http://www.shop263.com/i-43/275.htm 二甲基二硫]
[http://www.shop263.com/i-43/276.htm 二聚酸]
[http://www.shop263.com/i-43/277.htm 二氰基苯醌]
[http://www.shop263.com/i-43/278.htm 泛酸钙]
[http://www.shop263.com/i-43/279.htm 非诺洛芬钙]
[http://www.shop263.com/i-43/280.htm 分离试剂]
[http://www.shop263.com/i-43/281.htm 分子生物学]
[http://www.shop263.com/i-43/282.htm 蜂产品]
[http://www.shop263.com/i-43/283.htm 蜂花粉]
[http://www.shop263.com/i-43/284.htm 蜂胶]
[http://www.shop263.com/i-43/285.htm 蜂胶软胶囊]
[http://www.shop263.com/i-43/286.htm 蜂王浆]
[http://www.shop263.com/i-43/287.htm 蜂王浆冻干粉]
[http://www.shop263.com/i-43/288.htm 蜂王浆片]
[http://www.shop263.com/i-43/289.htm 呋喃甲酰氯]
[http://www.shop263.com/i-43/290.htm 孵化生物]
[http://www.shop263.com/i-43/291.htm 氟尿嘧啶]
[http://www.shop263.com/i-43/292.htm 甘草次酸]
[http://www.shop263.com/i-43/293.htm 甘草酸单铵盐]
[http://www.shop263.com/i-43/294.htm 甘草酸单钾盐]
[http://www.shop263.com/i-43/295.htm 甘草酸二铵盐]
[http://www.shop263.com/i-43/296.htm 甘草酸二钾盐]
[http://www.shop263.com/i-43/297.htm 甘草酸二钠盐]
[http://www.shop263.com/i-43/298.htm 甘草酸三钾盐]
[http://www.shop263.com/i-43/299.htm 甘草酸三钠盐]
[http://www.shop263.com/i-43/300.htm 甘草酸锌]
[http://www.shop263.com/i-43/301.htm 芦丁]
[http://www.shop263.com/i-43/302.htm 芦根]
[http://www.shop263.com/i-43/303.htm 芦荟蜂蜜]
[http://www.shop263.com/i-43/304.htm 芦荟凝胶冷冻粉]
[http://www.shop263.com/i-43/305.htm 芦荟软胶囊]
[http://www.shop263.com/i-43/306.htm 绿茶]
[http://www.shop263.com/i-43/307.htm 绿色化工]
[http://www.shop263.com/i-43/308.htm 绿原酸]
[http://www.shop263.com/i-43/309.htm 氯丙酸]
[http://www.shop263.com/i-43/310.htm 氯丙酸甲酯]
[http://www.shop263.com/i-43/311.htm 氯丙酸乙酯]
[http://www.shop263.com/i-43/312.htm 氯鸟嘌呤核苷]
[http://www.shop263.com/i-43/313.htm 氯嘌呤]
[http://www.shop263.com/i-43/314.htm 氯氰碘柳胺]
[http://www.shop263.com/i-43/315.htm 氯氰碘柳胺钠]
[http://www.shop263.com/i-43/316.htm 氯腺嘌呤核苷]
[http://www.shop263.com/i-43/317.htm 氯烟酸]
[http://www.shop263.com/i-43/318.htm 卵巢]
[http://www.shop263.com/i-43/319.htm 卵磷脂]
[http://www.shop263.com/i-43/320.htm 轮胎]
[http://www.shop263.com/i-43/321.htm 罗汉果浸膏]
[http://www.shop263.com/i-43/322.htm 罗汉果浸膏干粉]
[http://www.shop263.com/i-43/323.htm 偏氯乙烯]
[http://www.shop263.com/i-43/324.htm 平痛新]
[http://www.shop263.com/i-43/325.htm 破壁花粉]
[http://www.shop263.com/i-43/326.htm 破伤风抗毒素]
[http://www.shop263.com/i-43/327.htm 葡甲胺]
[http://www.shop263.com/i-43/328.htm 葡萄糖 ]
[http://www.shop263.com/i-43/329.htm 天然乳酸]
[http://www.shop263.com/i-43/330.htm 天然生物蜡]
[http://www.shop263.com/i-43/331.htm 天然桃胶]
[http://www.shop263.com/i-43/332.htm 天然维生素E]
[http://www.shop263.com/i-43/333.htm 天然植物浸膏]
[http://www.shop263.com/i-43/334.htm 天然植物浸膏油茶皂素]
[http://www.shop263.com/i-43/335.htm 天然植物茉莉花净油]
[http://www.shop263.com/i-43/336.htm 甜茶提取物]
[http://www.shop263.com/i-43/337.htm 甜叶菊提取]
[http://www.shop263.com/i-43/338.htm 头孢类]
[http://www.shop263.com/i-43/339.htm 透明质酸]
[http://www.shop263.com/i-43/340.htm 透明质酸钠]
[http://www.shop263.com/i-43/341.htm 透明质酸钠生物材料]
[http://www.shop263.com/i-43/342.htm 土霉素碱]
[http://www.shop263.com/i-43/343.htm 吐温]
[http://www.shop263.com/i-43/344.htm 蜕皮激素]
[http://www.shop263.com/i-43/345.htm 脱晶蒽油]
[http://www.shop263.com/i-43/346.htm 脱脂骨粉]
[http://www.shop263.com/i-43/347.htm 脱脂脱胶骨粉]
[http://www.shop263.com/i-43/348.htm 乙醇提取水飞蓟素]
[http://www.shop263.com/i-43/349.htm 乙基磺酰胺]
[http://www.shop263.com/i-43/350.htm 乙基磺酰氯]
[http://www.shop263.com/i-43/351.htm 乙基纤维素]
[http://www.shop263.com/i-43/352.htm 乙酸钙]
[http://www.shop263.com/i-43/353.htm 乙酰胞嘧啶核苷]
[http://www.shop263.com/i-43/354.htm 乙酰丙酮]
[http://www.shop263.com/i-43/355.htm 乙酰氯]
[http://www.shop263.com/i-43/356.htm 乙酰乙酸甲酯]
[http://www.shop263.com/i-43/357.htm 乙酰乙酸乙酯]
[http://www.shop263.com/i-43/358.htm 已酰氯]
[http://www.shop263.com/i-43/359.htm 芝麻酚]
[http://www.shop263.com/i-43/360.htm 脂肪酸]
[http://www.shop263.com/i-43/361.htm 脂肪族]
[http://www.shop263.com/i-43/362.htm 脂环族含氮化合物]
[http://www.shop263.com/i-43/363.htm 脂溶性产品]
[http://www.shop263.com/i-43/364.htm 植物流浸膏]
[http://www.shop263.com/i-43/365.htm 植物生产调节剂]
[http://www.shop263.com/i-43/366.htm 甘草提取物]
[http://www.shop263.com/i-43/367.htm 甘草甜素]
[http://www.shop263.com/i-43/368.htm 甘草甜味素]
[http://www.shop263.com/i-43/369.htm 甘露丝]
[http://www.shop263.com/i-43/370.htm 肝素]
[http://www.shop263.com/i-43/371.htm 肝素纳精品]
[http://www.shop263.com/i-43/372.htm 高纯度蒽醌]
[http://www.shop263.com/i-43/373.htm 高聚合度无卤阻燃剂]
[http://www.shop263.com/i-43/374.htm 高效柴油添加剂]
[http://www.shop263.com/i-43/375.htm 葛根]
[http://www.shop263.com/i-43/376.htm 葛根提取物]
[http://www.shop263.com/i-43/377.htm 葛根系列]
[http://www.shop263.com/i-43/378.htm 工业胰酶]
[http://www.shop263.com/i-43/379.htm 工艺雕刻用牛角]
[http://www.shop263.com/i-43/380.htm 共轭亚油酸]
[http://www.shop263.com/i-43/381.htm 共轭亚油酸软胶囊]
[http://www.shop263.com/i-43/382.htm 共轭亚油酸微胶囊粉末]
[http://www.shop263.com/i-43/383.htm 共轭亚油酸盐]
[http://www.shop263.com/i-43/384.htm 共轭亚油酸游离脂肪酸]
[http://www.shop263.com/i-43/385.htm 骨炭]
[http://www.shop263.com/i-43/386.htm 骨炭A级粉]
[http://www.shop263.com/i-43/387.htm 骨炭粉]
[http://www.shop263.com/i-43/388.htm 骨炭水磨粉]
[http://www.shop263.com/i-43/389.htm 固体光气]
[http://www.shop263.com/i-43/390.htm 瓜尔胶]
[http://www.shop263.com/i-43/391.htm 瓜尔爽]
[http://www.shop263.com/i-43/392.htm 光敏剂]
[http://www.shop263.com/i-43/393.htm 胱氨酸]
[http://www.shop263.com/i-43/394.htm 硅油乳液]
[http://www.shop263.com/i-43/395.htm 桂皮酸]
[http://www.shop263.com/i-43/396.htm 桂皮酸甲酯]
[http://www.shop263.com/i-43/397.htm 桂皮酸乙酯]
[http://www.shop263.com/i-43/398.htm 桂油]
[http://www.shop263.com/i-43/399.htm 果酸钙]
[http://www.shop263.com/i-43/400.htm 果糖]
[http://www.shop263.com/i-43/401.htm 合成多肽]
[http://www.shop263.com/i-43/402.htm 何首乌]
[http://www.shop263.com/i-43/403.htm 和厚朴酚]
[http://www.shop263.com/i-43/404.htm 黑升麻]
[http://www.shop263.com/i-43/405.htm 厚朴酚]
[http://www.shop263.com/i-43/406.htm 厚朴提取物]
[http://www.shop263.com/i-43/407.htm 槲皮素]
[http://www.shop263.com/i-43/408.htm 虎杖提取物]
[http://www.shop263.com/i-43/409.htm 环氧类涂料]
[http://www.shop263.com/i-43/410.htm 环氧涂料]
[http://www.shop263.com/i-43/411.htm 黄蜂蜡]
[http://www.shop263.com/i-43/412.htm 黄连素]
[http://www.shop263.com/i-43/413.htm 黄芪]
[http://www.shop263.com/i-43/414.htm 黄芪提取物]
[http://www.shop263.com/i-43/415.htm 黄芩]
[http://www.shop263.com/i-43/416.htm 黄芩甙]
[http://www.shop263.com/i-43/417.htm 黄体酮]
[http://www.shop263.com/i-43/418.htm 黄原胶]
[http://www.shop263.com/i-43/419.htm 磺胺类药物]
[http://www.shop263.com/i-43/420.htm 灰树花提取物]
[http://www.shop263.com/i-43/421.htm 茴油]
[http://www.shop263.com/i-43/422.htm 活性钙]
[http://www.shop263.com/i-43/423.htm 积雪草提取物]
[http://www.shop263.com/i-43/424.htm 基因芯片]
[http://www.shop263.com/i-43/425.htm 基因重组人胰岛素]
[http://www.shop263.com/i-43/426.htm 葡萄糖酸钾]
[http://www.shop263.com/i-43/427.htm 葡萄糖酸钠]
[http://www.shop263.com/i-43/428.htm 葡萄糖酸锌]
[http://www.shop263.com/i-43/429.htm 葡萄糖酸亚铁]
[http://www.shop263.com/i-43/430.htm 葡萄籽]
[http://www.shop263.com/i-43/431.htm 葡萄籽提取物]
[http://www.shop263.com/i-43/432.htm 葡萄籽油]
[http://www.shop263.com/i-43/433.htm 葡乙胺]
[http://www.shop263.com/i-43/434.htm 蒲公英]
[http://www.shop263.com/i-43/435.htm 岐化酶]
[http://www.shop263.com/i-43/436.htm 强化戊二醛]
[http://www.shop263.com/i-43/437.htm 羟丙纤维素]
[http://www.shop263.com/i-43/438.htm 青蒿素]
[http://www.shop263.com/i-43/439.htm 青霉素]
[http://www.shop263.com/i-43/440.htm 球痢灵]
[http://www.shop263.com/i-43/441.htm 曲克芦丁]
[http://www.shop263.com/i-43/442.htm 曲酸]
[http://www.shop263.com/i-43/443.htm 全蛋粉]
[http://www.shop263.com/i-43/444.htm 人参]
[http://www.shop263.com/i-43/445.htm 溶菌酶]
[http://www.shop263.com/i-43/446.htm 肉桂酸]
[http://www.shop263.com/i-43/447.htm 乳酸钙]
[http://www.shop263.com/i-43/448.htm 乳酸盐]
[http://www.shop263.com/i-43/449.htm 乳糖醇]
[http://www.shop263.com/i-43/450.htm 乳糖酸钠]
[http://www.shop263.com/i-43/451.htm 赛诺玛嗪]
[http://www.shop263.com/i-43/452.htm 三氯丙酮]
[http://www.shop263.com/i-43/453.htm 三氯新]
[http://www.shop263.com/i-43/454.htm 三氯乙腈]
[http://www.shop263.com/i-43/455.htm 烷基苯磺酸]
[http://www.shop263.com/i-43/456.htm 微晶纤维素]
[http://www.shop263.com/i-43/457.htm 微生物试剂]
[http://www.shop263.com/i-43/458.htm 维生素C]
[http://www.shop263.com/i-43/459.htm 维生素C磷酸酯]
[http://www.shop263.com/i-43/460.htm 维生素C衍生物]
[http://www.shop263.com/i-43/461.htm 维生素E]
[http://www.shop263.com/i-43/462.htm 维生素K1]
[http://www.shop263.com/i-43/463.htm 维生素K3]
[http://www.shop263.com/i-43/464.htm 维生素K4]
[http://www.shop263.com/i-43/465.htm 味精]
[http://www.shop263.com/i-43/466.htm 蛋白酶]
[http://www.shop263.com/i-43/467.htm 胃蛋白酶]
[http://www.shop263.com/i-43/468.htm 无水乙醇]
[http://www.shop263.com/i-43/469.htm 植物提取物]
[http://www.shop263.com/i-43/470.htm 细胞生物学]
[http://www.shop263.com/i-43/471.htm 腺嘌呤]
[http://www.shop263.com/i-43/472.htm 腺嘌呤核苷]
[http://www.shop263.com/i-43/473.htm 腺嘌呤磷酸盐]
[http://www.shop263.com/i-43/474.htm 橡胶类涂料]
[http://www.shop263.com/i-43/475.htm 橡胶专用脂肪酸]
[http://www.shop263.com/i-43/476.htm 消泡剂]
[http://www.shop263.com/i-43/477.htm 硝酸钾]
[http://www.shop263.com/i-43/478.htm 小牛浸膏粉]
[http://www.shop263.com/i-43/479.htm 缬氨酸]
[http://www.shop263.com/i-43/480.htm 辛弗林]
[http://www.shop263.com/i-43/481.htm 新鲜牛骨]
[http://www.shop263.com/i-43/482.htm 植物原料药]
[http://www.shop263.com/i-43/483.htm 植物脂肪酸]
[http://www.shop263.com/i-43/484.htm 枳实]
[http://www.shop263.com/i-43/485.htm 枳实提取物]
[http://www.shop263.com/i-43/486.htm 制剂成品药]
[http://www.shop263.com/i-43/487.htm 中成药]
[http://www.shop263.com/i-43/488.htm 中性蛋白酶]
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Latest revision as of 10:59, 19 February 2016

Vorbis over RTP

This page documents current consensus on the RTP payload format for Vorbis audio. This encapsulation is useful for interactive and multicast streaming.

Standard

In 2008, the Vorbis RTP specification was accepted by the IETF's Network Working Group as RFC 5215. It may be found at

Issues

Basically, we pack Vorbis packets into RTP packets; that's been part of the draft for some time. The hard part is achieving reliable header transmission, since RTP is usually used in combination with a no-guaranteed-delivery networking mechanism. Equally important, in multicast the headers can't be prepended on connection the way Icecast does with HTTP streams.

The current suggestion (due to Jack) is that we dispense with the chaining feature of Ogg streams, and only allow a single set of vorbis headers per RTP stream. Since RTP is most often used to stream live or at least individual events, this is not a serious limitation. Even in the "simulated live" case encoded files often have the same set of codebooks, and those that do not can be re-encoded on the fly.

The only real drawback is the loss of a metadata update mechanism. This can be resolved either by using a completely separate metadata stream (which we've always wanted to do anyway) or by altering the spec to allow comment header packets to occur outside the headers. In the later case a recording application would need to insert chaining boundaries and duplicate headers at each metadata change. The former offers the client more control over the metadata stream bandwidth.

Design

  • Vorbis packets get packed into RTP packets
  • Header parameters are fixed per stream, so they can be passed in the SDP
 * inline in the SDP?
 * HTTP reference or other protocol?
 * some kind of hash so clients can cache codebooks/parameters
 * inline in the RTP stream should also be allowed
  • Granulepos becomes timestamp (still in samples)

Implementation

Tor-Einar Jarnbjo has an example implementation that extends the ideas in the kerr 03 draft a bit.

Retrieved from "https://wiki.xiph.org/index.php?title=VorbisRTP&oldid=16292"