summaryrefslogtreecommitdiff
path: root/src/libfaad/bits.c
diff options
context:
space:
mode:
authorMiguel Freitas <miguelfreitas@users.sourceforge.net>2003-12-30 02:00:10 +0000
committerMiguel Freitas <miguelfreitas@users.sourceforge.net>2003-12-30 02:00:10 +0000
commitf260c2ac3661143bfdfbcc4c7a3574acdd831894 (patch)
tree644ed0104c63c64b7346681ca5e212a81876458c /src/libfaad/bits.c
parent33f6c0d77b5dfafcbafd09fc05d700fb66c9cb47 (diff)
downloadxine-lib-f260c2ac3661143bfdfbcc4c7a3574acdd831894.tar.gz
xine-lib-f260c2ac3661143bfdfbcc4c7a3574acdd831894.tar.bz2
- update to libfaad 2.0 rc3
- some fixes to xine_decoder.c CVS patchset: 5959 CVS date: 2003/12/30 02:00:10
Diffstat (limited to 'src/libfaad/bits.c')
-rw-r--r--src/libfaad/bits.c71
1 files changed, 46 insertions, 25 deletions
diff --git a/src/libfaad/bits.c b/src/libfaad/bits.c
index d08d69c77..ea0b8a78c 100644
--- a/src/libfaad/bits.c
+++ b/src/libfaad/bits.c
@@ -1,22 +1,28 @@
/*
-** FAAD - Freeware Advanced Audio Decoder
-** Copyright (C) 2002 M. Bakker
-**
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
+**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
-**
+**
** This program 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 General Public License for more details.
-**
+**
** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
+** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
**
-** $Id: bits.c,v 1.4 2003/04/12 14:58:46 miguelfreitas Exp $
+** Any non-GPL usage of this software or parts of this software is strictly
+** forbidden.
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
+**
+** $Id: bits.c,v 1.5 2003/12/30 02:00:10 miguelfreitas Exp $
**/
#include "common.h"
@@ -27,26 +33,32 @@
#include "bits.h"
/* initialize buffer, call once before first getbits or showbits */
-void faad_initbits(bitfile *ld, void *_buffer, uint32_t buffer_size)
+void faad_initbits(bitfile *ld, const void *_buffer, const uint32_t buffer_size)
{
uint32_t tmp;
- ld->buffer = malloc((buffer_size+12)*sizeof(uint8_t));
+ if (ld == NULL)
+ return;
+
+ memset(ld, 0, sizeof(bitfile));
+
+ if (buffer_size == 0 || _buffer == NULL)
+ {
+ ld->error = 1;
+ ld->no_more_reading = 1;
+ return;
+ }
+
+ ld->buffer = faad_malloc((buffer_size+12)*sizeof(uint8_t));
memset(ld->buffer, 0, (buffer_size+12)*sizeof(uint8_t));
memcpy(ld->buffer, _buffer, buffer_size*sizeof(uint8_t));
ld->buffer_size = buffer_size;
tmp = getdword((uint32_t*)ld->buffer);
-#ifndef ARCH_IS_BIG_ENDIAN
- BSWAP(tmp);
-#endif
ld->bufa = tmp;
tmp = getdword((uint32_t*)ld->buffer + 1);
-#ifndef ARCH_IS_BIG_ENDIAN
- BSWAP(tmp);
-#endif
ld->bufb = tmp;
ld->start = (uint32_t*)ld->buffer;
@@ -62,13 +74,12 @@ void faad_initbits(bitfile *ld, void *_buffer, uint32_t buffer_size)
void faad_endbits(bitfile *ld)
{
if (ld)
- if (ld->buffer) free(ld->buffer);
+ if (ld->buffer) faad_free(ld->buffer);
}
-
uint32_t faad_get_processed_bits(bitfile *ld)
{
- return 8 * (4*(ld->tail - ld->start) - 4) - (ld->bits_left);
+ return (uint32_t)(8 * (4*(ld->tail - ld->start) - 4) - (ld->bits_left));
}
uint8_t faad_byte_align(bitfile *ld)
@@ -83,6 +94,22 @@ uint8_t faad_byte_align(bitfile *ld)
return 0;
}
+void faad_flushbits_ex(bitfile *ld, uint32_t bits)
+{
+ uint32_t tmp;
+
+ ld->bufa = ld->bufb;
+ tmp = getdword(ld->tail);
+ ld->tail++;
+ ld->bufb = tmp;
+ ld->bits_left += (32 - bits);
+ ld->bytes_used += 4;
+ if (ld->bytes_used == ld->buffer_size)
+ ld->no_more_reading = 1;
+ if (ld->bytes_used > ld->buffer_size)
+ ld->error = 1;
+}
+
/* rewind to beginning */
void faad_rewindbits(bitfile *ld)
{
@@ -113,7 +140,7 @@ uint8_t *faad_getbitbuffer(bitfile *ld, uint32_t bits
uint16_t bytes = (uint16_t)bits / 8;
uint8_t remainder = (uint8_t)bits % 8;
- uint8_t *buffer = (uint8_t*)malloc((bytes+1)*sizeof(uint8_t));
+ uint8_t *buffer = (uint8_t*)faad_malloc((bytes+1)*sizeof(uint8_t));
for (i = 0; i < bytes; i++)
{
@@ -144,15 +171,9 @@ void faad_initbits_rev(bitfile *ld, void *buffer,
ld->start = (uint32_t*)buffer + index - 2;
tmp = getdword((uint32_t*)buffer + index);
-#ifndef ARCH_IS_BIG_ENDIAN
- BSWAP(tmp);
-#endif
ld->bufa = tmp;
tmp = getdword((uint32_t*)buffer + index - 1);
-#ifndef ARCH_IS_BIG_ENDIAN
- BSWAP(tmp);
-#endif
ld->bufb = tmp;
ld->tail = (uint32_t*)buffer + index;