20 Sep
2001
20 Sep
'01
7:28 p.m.
On Sun, 2001-07-01 at 02:14, Rob Leslie wrote:
For VBR, if there is a so-called Xing tag in the first frame, you can compute the playing time and number of frames from that. Otherwise, the only guaranteed method to determine either is to scan the entire file.
I'm not clear on how this is possible. The Xing tag tells us the number of frames and the length (in bytes) of the file, but we don't have a bitrate, so it's (apparently) not possible to calculate time. Or am I missing something? (I wasn't able to find any documentation on the Xing header anywhere, so I might be.)
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Joe Drew hoserhead@woot.net drew@debian.org
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