[gst-devel] oggdemux push seek support

David Schleef ds at entropywave.com
Sat Jan 16 19:42:45 CET 2010


On Sat, Jan 16, 2010 at 05:34:19PM +0000, Jay L. T. Cornwall wrote:
> The Ogg format is inherently difficult to seek because the stream 
> headers (intentionally, by virtue of its streaming-oriented design) do 
> not provide enough information to do this and its codecs are typically 
> VBR. In pull mode, oggdemux performs a bisection search of the stream to 
> identify chains (Ogg files concatenated together) and to compute the 
> total stream length, among other things. This process is too seek 
> intensive for push mode and so the demuxer currently has no seek support 
> in push mode.

You'll probably want to read this and related stuff to find out
what efforts are being done in the area:

  http://pearce.org.nz/labels/ogg.html



dave...




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