[Flac-dev] --until decodes rest of file?

Josh Coalson xflac at yahoo.com
Fri Nov 7 11:43:04 PST 2003


sorry about the delay on this one...

do you have a sample flac file that you can host that exhibits
the problem?

Josh

--- Donald Gordon <don at dis.org.nz> wrote:
> Hi
> 
> I'm having a seemingly odd problem with flac 1.1.0: when I decode a
> large (CD size) flac file, using --skip and --until to extract a
> single
> track, flac appears to continue to decode until it reaches the end of
> the file:
> 
> donald at klatch:~/arch/loveovergold$ time flac -d -o - --until=+1048576
> data.flac > /dev/null
> flac 1.1.0, Copyright (C) 2000,2001,2002,2003 Josh Coalson
> flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and
> you are
> welcome to redistribute it under certain conditions.  Type `flac' for
> details.
>  
> data.flac: done
>  
> real    0m45.948s
> user    0m39.800s
> sys     0m1.670s
> donald at klatch:~/arch/loveovergold$ time flac -d -o - data.flac >
> /dev/null                                                            
>                    
> flac 1.1.0, Copyright (C) 2000,2001,2002,2003 Josh Coalson
> flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and
> you are
> welcome to redistribute it under certain conditions.  Type `flac' for
> details.
>  
> data.flac: done
>  
> real    1m3.983s
> user    0m44.840s
> sys     0m1.710s
> donald at klatch:~/arch/loveovergold$ time flac -d -o - --skip=52920000
> --until=+1048576 data.flac > /dev/null
> flac 1.1.0, Copyright (C) 2000,2001,2002,2003 Josh Coalson
> flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and
> you are
> welcome to redistribute it under certain conditions.  Type `flac' for
> details.
>  
> data.flac: done
>  
> real    0m23.943s
> user    0m16.280s
> sys     0m0.970s
> 
> As you can see, starting at the beginning of the file always takes
> about
> the same amount of time, and starting later still takes a reasonable
> amount of time to decode 1Msamples (~23s).
> 
> I'm guessing this is a bug :-)
> 
> donald
> (please CC me replies, I'm not subscribed to the list)


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