Standardizing ASF
ASF is in the process of becoming an open standard. Microsoft® is taking the lead in this process. Microsoft is well suited for this role, as ASF is an extension of WAV and AVI, the older multimedia standards developed by Microsoft. The standardization process involves certain steps, milestones, and deliverables. These are as follows: |
First Draft of ASF Specification. In 1996, Microsoft developed a preliminary version of ASF and implemented it within its NetShowTM streaming server and client products. Starting with this version, and making numerous enhancements to it, Microsoft and Real Networks authored the initial "straw man" draft of the ASF specification. Then, an initial group of core multimedia industry players enhanced that document into a first draft version. This group was comprised of Microsoft, Real Networks, Intel, Adobe, and Vivo. Completed: August 14, 1997 |
Second Draft of ASF Specification. Between August 14 and September 10, 1997, a team of 40 additional industry players worked to revise the first draft ASF Specification and generate the second draft specification. Completed: September 10, 1997 ASF Security Proposal - asfsecurity.exe (Compressed RTF) |
Completion of ASF Specification. The ASF Specification is now completed. You can view the Specification online. Completed: September 30, 1997 Submit Comment. Industry Participants. Resources. Join Mail List. |
Completion of ASF Reference
Implementation. Microsoft will produce a low-level reference Software Developers Kit (SDK) for ASF, and will make this SDK available for download from this Web site. Estimated Date: 1Q '98 |
Submission to Standards Bodies. Microsoft is working actively with several important standards committees to insure that the advanced streaming media functionality of ASF is incorporated in the definition of future multimedia file formats. Microsoft is active in both the ISO/MPEG4 and Society of Motion Picture and Television Engineers (SMPTE) standards definition proceedings. In addition, ASF is in the process of being submitted to the Internet Engineering Task Force (IETF) to become an Informational RFC. Additional internet-draft documents dealing with ASF-related topics (see below) have also been submitted to the IETF. Please send your suggestions to asf@listserv.msn.com RTP Payload Format for ASF Streams submitted to IETF's AVT WG
Recording MBone Sessions to ASF Files WAVE and AVI Codec Registries MPEG-4 Intermedia Format as an Extension of ASF
Advanced Streaming Format (ASF) Specification Specification of a general purpose RTP payload format - The following is the specification of a general purpose RTP payload format that has been submitted to the Audio-Video Transport (AVT) working group at the IETF. The payload format can be used for transmitting content from ASF files over RTP. |
© 1997 Microsoft Corporation. All rights reserved. Terms of Use.