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Search: Posts Made By: Buschel
Forum: Development 01 July 2011, 12:18 pm
Replies: 1
Views: 6,672
Posted By Buschel
You might take a look at the svn source...

You might take a look at the svn source (http://svn.musepack.net) and review the sample decoder (http://svn.musepack.net/libmpcdec/trunk/src/sample.cpp).
You could also browse the source code of a...
Forum: Tech 03 November 2010, 10:34 am
Replies: 1
Views: 6,217
Posted By Buschel
mpc does not use window switching. it uses the...

mpc does not use window switching. it uses the same filterbank as mp1/mp2. you may detect transients via rapidly changing scalefactors -- e.g. watch the scalefactor of the lowest subband over time.
Forum: General 05 June 2010, 09:09 am
Replies: 7
Views: 9,680
Posted By Buschel
Rockbox 3.6 was just released (Release Notes 3.6...

Rockbox 3.6 was just released (Release Notes 3.6 (http://www.rockbox.org/wiki/ReleaseNotes36)). This is the first official release with Musepack SV8 support. Since the first port in March several...
Forum: Development 15 May 2010, 09:07 pm
Replies: 5
Views: 8,609
Posted By Buschel
Hi r2d, thanks for your response! I already...

Hi r2d, thanks for your response!

I already submitted the following change (verified by 3 users :) to the rockbox depot:

static void
mpc_demux_seek(mpc_demux * d, mpc_seek_t fpos,...
Forum: Development 13 May 2010, 09:03 pm
Replies: 5
Views: 8,609
Posted By Buschel
The following code works on simulation and ARM...

The following code works on simulation and ARM target. It is by factors faster than the unchanged version. I am not fully satisfied with the code, but it is a proof-of-concept. Ayn further...
Forum: Development 13 May 2010, 03:53 pm
Replies: 5
Views: 8,609
Posted By Buschel
I am searching for a solution that looks similar...

I am searching for a solution that looks similar to this:

// d->bits_reader.buff - d->buffer = position within buffer
// d->bytes_total = total position in file at buffer start
//...
Forum: Development 13 May 2010, 01:12 pm
Replies: 5
Views: 8,609
Posted By Buschel
Help in mpc_demux_seek() needed

Hi all,

as you may know I have ported the sv8 decoder to rockbox. When doing so there were some issues that needed to be solved due to changes especially in the buffer code. For example the change...
Forum: General 01 April 2010, 09:42 am
Replies: 6
Views: 9,272
Posted By Buschel
Musepack was not optimized for target bitrates,...

Musepack was not optimized for target bitrates, but it was tuned for reaching stable quality. Different quality settings will result in different bitrates. Typical bitrates for transparency for...
Forum: Development 04 March 2008, 08:50 pm
Replies: 2
Views: 7,109
Posted By Buschel
Overflow bug in fixed point fixed

Hi all,

just to mention that an overflow in the fixed point variant of the sv7-decoder for rockbox was fixed. Maybe this is of interest for you.

http://www.rockbox.org/tracker/task/8670

see...
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