devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

New FLAC decoder from the ffmpeg project

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7656 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2005-10-26 12:35:58 +00:00
parent 48be8e6a8b
commit 273d2e81f7
17 changed files with 2202 additions and 301 deletions
Download patch file Download diff file Expand all files Collapse all files

62
apps/codecs/libffmpegFLAC/bitstream.c Normal file
View file

@ -0,0 +1,62 @@
/*
* Common bit i/o utils
* Copyright (c) 2000, 2001 Fabrice Bellard.
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* alternative bitstream reader & writer by Michael Niedermayer <michaelni@gmx.at>
*/
/**
* @file bitstream.c
* bitstream api.
*/
#include <stdio.h>
#include "bitstream.h"
/* bit input functions */
/**
* reads 0-32 bits.
*/
unsigned int get_bits_long(GetBitContext *s, int n){
if(n<=17) return get_bits(s, n);
else{
int ret= get_bits(s, 16) << (n-16);
return ret | get_bits(s, n-16);
}
}
/**
* shows 0-32 bits.
*/
unsigned int show_bits_long(GetBitContext *s, int n){
if(n<=17) return show_bits(s, n);
else{
GetBitContext gb= *s;
int ret= get_bits_long(s, n);
*s= gb;
return ret;
}
}
void align_get_bits(GetBitContext *s)
{
int n= (-get_bits_count(s)) & 7;
if(n) skip_bits(s, n);
}