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Topic: Advanced Streaming Format

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  Advanced Streaming Format - Wikipedia, the free encyclopedia
ASF is part of the Windows Media framework.
The format does not specify how the video or audio should be encoded, but instead just specifies the structure of the video/audio stream.
The ASF format is based on serialized objects which are essentially byte-sequences identified by a GUID marker.
en.wikipedia.org /wiki/Advanced_Streaming_Format   (305 words)

 Advanced Streaming Format - the free encyclopedia   (Site not responding. Last check: 2007-10-08)
This is similar to the functionperformed by the QuickTime format or the Oggformat.
ASF files containing only WMA audio can be named with the filename extension.wma and files of only audio and video content may have the extension.wmv.
ASF is often confused with Microsoft's own implementation of MPEG-4 video format(Windows Media Video), because most of the ASF streams areencoded using this technology.
www.encyclopedia-of-knowledge.com /?t=ASF   (258 words)

 Advanced Streaming Format - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-08)
ASF files can also contain metadata, such as the artist, title, album and genre for an audio track, or the director of a video track, much like the ID3 tags of MP3 files.
ASF files containing only WMA audio can be named with the file suffix.wma and files of only audio and video content may have the suffix.wmv.
ASF is often confused with Microsoft's own implementation of MPEG-4 video format (Windows Media Video), because most of the ASF streams are encoded using this technology.
www.encyclopedia-online.info /ASF   (288 words)

 Advanced Streaming Format -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
The ASF format is based on (Click link for more info and facts about serialized) serialized objects which are essentially (A sequence of 8 bits (enough to represent one character of alphanumeric data) processed as a single unit of information) byte-sequences identified by a (Click link for more info and facts about GUID) GUID marker.
ASF files containing only WMA audio can be named with the (A string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename) filename extension.wma and files of only audio and video content may have the extension.wmv.
ASF is often confused with Microsoft's own implementation of (Click link for more info and facts about MPEG-4) MPEG-4 video format ((Click link for more info and facts about Windows Media Video) Windows Media Video), because most of the ASF streams are encoded using this technology.
www.absoluteastronomy.com /encyclopedia/a/ad/advanced_streaming_format.htm   (408 words)

 Sorenson Media   (Site not responding. Last check: 2007-10-08)
Advanced Streaming Format (ASF)-Advanced Streaming Format is an MS Windows Media Player file format for audio and video on the Internet or other network.
It is the most common format for audio/video data on PC and an example of a de facto (by fact) standard.
The WMV format is similar to the ASF format.
www.sorensonmedia.com /learn/video_file_format.php   (906 words)

 ASFv2 Straw Man
ASF is similarly agnostic about how the data is packetized by network protocols (for example, whether the multimedia data is sent in an interleaved or non-interleaved fashion).
Stream prioritization is complicated by the presence of scalable media types, since it is not always possible to determine the order of stream application at authoring time.
Streams in a mutual exclusion relationship with each other (for example, languages) should all be listed in adjacent order (in other words, priority n, n+1, n+2, and so on), sorted in decreasing order of maximum stream bandwidth.
avifile.sourceforge.net /asf0298rtf.htm   (9756 words)

 SpacialAudio.com - Professional internet broadcasting solutions
CIF, Common Intermediate Format, also named Full CIF, is part of the ITU H.261 Videoconferencing standard to specify the frame rates of 30 frames per second (fps), and a resolution of 288 x 352 pixels.
Streaming is the simultaneous transfer of video, audio and data over a network (either the Internet or an Intranet) so that it is received as a continuous real-time stream.
Streaming data is transmitted by a server application and received and played in real-time by client applications.
www.spacialaudio.com /knowledge/question.php?qstId=205   (2962 words)

 ASF (Advanced Systems Format)
Typically a final state format for enduser delivery; may be used as a middle-state format, e.g., the video source when producing lower-resolution streaming versions.
ASF files containing streams of other types and/or produced by other codecs, not documented at this time.
The format was initally developed to support streaming media, and commentators report that ASF originally stood for Advanced Streaming Format.
www.digitalpreservation.gov /formats/fdd/fdd000067.shtml   (595 words)

 Windows Media Player files (.asf files) are not recognized as sound files in PowerPoint 2002
Advanced Streaming Format (ASF) is a data format for streaming audio and video content, images, and script commands in packets over a network.
ASF content can be an.asf file or a live stream generated by Windows Media Encoder.
ASF content that is in the process of being delivered over a network is called an ASF stream.
support.microsoft.com /default.aspx?scid=kb;en-us;q285443&FR=1   (236 words)

 The Best File Format   (Site not responding. Last check: 2007-10-08)
treaming file formats, such as the Advanced Streaming Format, describe how data is organized as it moves across a network, letting users play the file as packets stream in.
But unlike other streaming formats, ASF describes how to organize many types of media-including text, graphics, animation, video, and audio-in a synchronized presentation.
An ASF file, for example, could contain a video clip synchronized with PowerPoint slides that change at specific points in the video and ActiveX controls that launch on cue.
www.informationweek.com /648/48iubes.htm   (184 words)

 Windows Media Video - Wikipedia, the free encyclopedia
The video stream is often combined with an audio stream of Windows Media Audio.
Raw WMV video is packed into an AVI or Advanced Streaming Format (ASF) container.
This codec is also used to distribute high definition video on standard DVDs in a format Microsoft has branded as WMV HD.
en.wikipedia.org /wiki/WMV   (384 words)

 IRT: Support: Web/Media: Workshops: Streaming Media
Despite their apparent domination of streaming, RealNetworks is still the beloved underdog and is often considered the true streaming innovator.
As a result, you will find that the tools you need to produce and view Windows Media and the Advanced Streaming Format are readily available from their Web site.
This ASF Streaming Redirector file (ASX) is an XML format file that basically creates a shortcut to the actual ASF file on the server.
www.drexel.edu /irt/support/webits/streaming/wmedia.html   (2135 words)

 QuickTime - Wikipedia, the free encyclopedia
Other later-developed media container formats such as Microsoft's Advanced Streaming Format or by the open source Ogg and Matroska containers lack this abstraction, and require all media data to be rewritten after editing.
On February 11, 1998 the ISO approved the QuickTime file format as the basis of the MPEG-4
Supporters of the move noted that QuickTime provided a good "life-cycle" format, well suited to capture, editing, archiving, distribution, and playback (as opposed to the simple file-as-stream approach of MPEG-1 and MPEG-2, which does not mesh well with editing).
en.wikipedia.org /wiki/QuickTime   (1613 words)

 Introduction into Advanced Streaming Format version 1.0
Advanced (formerly Active) Streaming Format was developed by Microsoft in 1995-1998.
As long as Microsoft does not provide implementations of ASF reader or writer for any platforms except Windows and Macintosh, it is necessary to have at least minimal specification of the format to implement tools for working with ASF 1.0 on all other platforms.
ASF URLs that start with http:// or mms:// refer to streams that are delivered to end-user over protocol that's based on HTTP.
avifile.sourceforge.net /asf-1.0.htm   (2234 words)

 XML and Web Service Glossary: ASF (Advanced Streaming Format)
Microsoft's ASF is an extensible file format designed to store synchronized multimedia data.
The delivery and presentation of all media stream data is synchronized to a common time-line.
ASF's functionality is similar to the one provided by Apple's QuickTime.
dret.net /glossary/asf   (212 words)

 streaming video - a Whatis.com definition - see also: media, streaming   (Site not responding. Last check: 2007-10-08)
Streaming video is a sequence of "moving images" that are sent in compressed form over the Internet and displayed by the viewer as they arrive.
With streaming video or streaming media, a Web user does not have to wait to download a large file before seeing the video or hearing the sound.
However, for most Web users, the streaming video will be limited to the data rates of the connection (for example, up to 128 Kbps with an ISDN connection).
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci213055,00.html   (281 words)

 Advanced Authoring Format   (Site not responding. Last check: 2007-10-08)
AAF is a truly open format in that its specification is publicly available, it is not owned by any single company, and has been submitted unencumbered to industry standards organizations.
AAF Targets Drawbacks of Current Multimedia Formats AAF is designed to address the interchange drawbacks of existing multimedia file formats - such as AVI2 and WAV - that are not cross-platform, cannot be edited without re-writing the entire file, and cannot describe compositions with multiple layers or elements.
In contrast, AAF is a format that focuses exclusively on the needs of authoring, without the constraints associated with trying to meet the needs of consumer distribution.
www.computerroom.com /sales/video_hardware/Matrox/DigiSuite/aaf.htm   (714 words)

 ASF - Active Streaming Format, Advanced Streaming Format, Apache Software Foundation, Applied Science Fiction
The ASF uses a model of emissions from energy, industry, agriculture, and land use.
The ASF managed the remarkably achievement of being much less effective than the failed OLAP Council and eventually disappeared, it sole achievement having been the issuing of a press release announcing its formation.
An ASF consists of characters arranged in rows and columns.
www.auditmypc.com /acronym/ASF.asp   (323 words)

 ASF to RM - Convert ASF to RealMedia   (Site not responding. Last check: 2007-10-08)
To convert ASF (Advanced Streaming Format) files to RM RealMedia video with River Past Video Cleaner, you should have DirectX 8.0 or above (9.0 highly recommended), and River Past RealMedia Booster Pack installed.
Use the setting panel on the bottom of the window to control the output format.
It is normally bitrate based for streaming, or quality based if you just want to store the video for local playback.
preview.riverpast.com /en/support/tutorials/convert/asf/rm.php   (398 words)

 Audiolib MP3 Converter - Convert audio files from one format to another.
A special type of advanced streaming format file for use with audio content encoded with the Windows Media Audio codec.
The Dialogic ADPCM format is commonly found in telephony applications, and has been optimized for low sample rate voice.
This encoding format compresses original 16-bit audio down to 8 bits (for a 2:1 compression ratio) with a dynamic range of about 13-bits.
www.audiolib.com /converter/format.html   (361 words)

 Catalyst: Glossary
In this file format, data is stored consecutively, meaning that a segment of video data is followed by a segment of audio data.
Streaming allows you to display the data on your browser before the entire file is transmitted.
For streaming to work, the data must be received by your browser and sent to an application that will process the data and convert it to audio or video.
catalyst.washington.edu /glossary.html   (6696 words)

 SecuriTeam.com ™ - Windows Media Player .ASF Processor Buffer Overflow Vulnerability
A security hole is exposed in Windows Media Player 6.4 when playing malformed ASF files due to an unchecked buffer in the code that processes the ASF format.
ASF (Advanced Streaming Format) is a data format used for storing streaming media data and sending it over networks.
It would be possible for an attacker to construct an especially malformed ASF file that would overrun an internal buffer in the player, thereby changing the operation of the player while it was running.
www.securiteam.com /windowsntfocus/6X00N0U35O.html   (1830 words)

 Streaming Technologies   (Site not responding. Last check: 2007-10-08)
Windows Media Encoder is a real time encoder that can be used to produce video streams for streaming over a network from a standard web server or specialised server software or alternatively video can be rendered in real time directly to disk as an ASF stream.
For more advanced users, the encoder and author have another mode of operation that allows the user to manually choose the codecs for audio and video that will encode the stream.
The downside to this is this is that viewers of the media stream need to have the corresponding codec on their computer too.
www.clickandgovideo.ac.uk /stream.htm   (1483 words)

 Audio File Formats
It includes a brief description of the file format and the name of a program that first used the files or is commonly used to create, edit or play them.
ASF is an extensible file format that stores synchronized multimedia data.
ASF supports advanced multimedia capabilities including extensible media types, component download, scalable media types, author-specified stream prioritization, multiple language support, and extensive bibliographic capabilities that include document and content management.
www.csusm.edu /iits/trc/training/information/audioFormats.htm   (804 words)

 Stream Media Resources   (Site not responding. Last check: 2007-10-08)
Graham Technologies -- Intriguiging streaming video; uses stream of JPEG images with server push (MIME type multipart/x-mixed-replace) and is tuneable to line speed.
Netshow uses the Advanced Streaming Format (ASF) protocol natively.
Streaming media isn't the only application that would be enabled by an improved Internet, but many proposed applications have a video component.
ils.unc.edu /real/resources.htm   (570 words)

 DIGITAL VIDEO   (Site not responding. Last check: 2007-10-08)
ASF is optimized for network distribution and desktop playback.
The precursor to ASF, AVI files are limited to audio and video only and are not streamable.
Currently, avi file format is often used for DIVX file format.
www.ed.uiuc.edu /courses/ci490uv/presentation/digitalvideo.htm   (623 words)

 INLS 310: Streaming Technologies   (Site not responding. Last check: 2007-10-08)
They use true streaming rather than pseudo-streaming, which would require the user to wait until all the appropriate data is downloaded before it can play.
This is a standard format for multimedia files, so theoretically players would be able to play multiple types of files in the future.
AAF (advanced authoring format) was also announced at the same time as a standard for content creators.
ils.unc.edu /inls310sp98/problems.html   (428 words)

 Computergram International: Microsoft Has New Multimedia File Format Strategy
ASF is a streaming format for sending media files from server to client, developed as part of a cross licensing deal with video streaming specialists RealNetworks Inc, and with input from Adobe Systems Inc, Intel Corp and Viv Software Inc among others.
It is a similar format to Apple Computer Inc's QuickTime, which was adopted as an ISO standard over ASF as the basis of its MPEG file format (CI No 3,343).
ASF and AAF succeed the Audio Video Interleaved (AVI) file format, and Microsoft is pushing for them to become the new default multimedia file formats for Windows.
www.findarticles.com /p/articles/mi_m0CGN/is_n3383/ai_20466035   (300 words)

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