View source for ASF

{{mux|id=asf|encoder=y|altid=asfh}}
{{Wikipedia|Advanced Streaming Format}}
{{Wikipedia|DVR-MS}}

'''Advanced Streaming Format''' (or '''ASF''', later renamed into '''Advanced Systems Format''') is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Windows Media Framework.

'''Windows Media Files''': ASF files have the file extension '''.asf''', but ASF files which contain [[Windows Media]] codecs are often given the file extension '''.wmv''' or '''.wma'''.

'''DVR-MS''': the Windows Vista recording format, should be played (more or less correctly) by recent VLC versions. 

== Encoder options ==
When encoding to ASF format, you can use the following options:
* --sout-asf-title ([[string]])
* --sout-asf-author ([[string]])
* --sout-asf-copyright ([[string]])
* --sout-asf-comment ([[string]])
* --sout-asf-rating ([[string]])
*: For use in comments (meta information) in the ASF file
* --sout-asf-packet-size ([[integer]])
*: Packet size. Default is 4096

== Specification ==
* http://www.microsoft.com/windows/windowsmedia/forpros/format/asfspec.aspx

== Source code ==
{{file|modules/mux/asf.c|output muxer}}
{{file|modules/demux/asf/asf.c|input demuxer}}