helix mobile producer on-demand user's guide - RealPlayer

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Helix Mobile Producer On-Demand User’s Guideenables broadcasters to deliver multimedia presentations over theInternet.Nnoise Random flaws that occur in audio or video content.PQRpixelA picture element, which is one point—or the smallest unit—in a graphicimage.profileA subset of the MPEG-4 standard that enables an MPEG-4 file to be ascomplex as is necessary for a given software application. Vendors can useprofiles to implement only the part of the MPEG-4 standard that theyneed, knowing that their files will be compatible with products fromother vendors.QCIF (pronounced “q sif”)Quarter Common Intermediate Format. A video display size (1/4 CIF =144 x 176 pixels) well suited to lower bit rates.RVLCReversible Variable Length Coding.Sscene descriptionA description of the media in a streamed presentation and how thecontent is to be reconstructed. The technical term for this is BIFS (binaryformat for scenes).set-top boxA device that connects a TV to the Internet so that Internet informationcan be displayed on the TV screen. This term also is used to refer to a cableor satellite television receiver.SIFStandard Image Format. For video, the SIF NTSC is 352 x 240 pixels, andthe SIF PAL is 352 x 288 pixels.smootherAn algorithm that Helix Mobile Producer On-Demand uses to regulate bitrates in streaming media and prevent unexpected peaks or bursts in the100
Glossarydata streams. The smoother prevents media encoders from generating toomuch data or overly complex data.streamThe encoded media or scene description data in an MPEG-4 file. A mediastream consists of audio, video, or other multimedia content that istransmitted across a computer network in a streaming or continuousmanner.streamingThe delivery of a media stream from a steaming server to a media player(such as RealOne Player) as a steady, continuous flow of audio, video, orother data. The player reconstructs each media scene by usinginformation stored in the scene description.UURL Uniform Resource Locator. A standard, worldwide protocol for namingdocuments or sites (such as Web pages) on the Internet.VVBRVariable bit rate.VTRVideotape recorder.101
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HELIX MOBILE PRODUCER ON-DEMAND USE
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CONTENTS1 INTRODUCTION 1What is Hel
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ContentsEncoder type...............
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ContentsMP3 encoder ...............
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Chapter 1:INTRODUCTIONCHAPTER1Welco
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CHAPTER 1: Introductionof MPEG-4. H
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CHAPTER 1: IntroductionAdditional D
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Page 112 and 113: QCELP 91RealAudio 91audio encoding
Page 114 and 115: command-line interface 4, 55, 56com
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Page 118 and 119: RTP 50RTSP 50RTSP interleave 50TCP
Page 120: VBR encoding 31VBR file 31VBR video
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