From 1ae85c23560a870d34edaafd76b2cb64b9b95c93 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Diego=20=27Flameeyes=27=20Petten=C3=B2?= Date: Wed, 18 Apr 2007 17:52:13 +0200 Subject: Replace libdts 0.0.2 with libdca 0.0.5 and contextually move it in contrib/. libdca 0.0.5 was released about a week ago, and this commit replaces the old code from libdts 0.0.2 (that was renamed libdca). There's basically no functional change even if the build system is simplified as configure takes care of switching between the two implementations on its own. --- src/libdts/bitstream.c | 111 ------------------------------------------------- 1 file changed, 111 deletions(-) delete mode 100644 src/libdts/bitstream.c (limited to 'src/libdts/bitstream.c') diff --git a/src/libdts/bitstream.c b/src/libdts/bitstream.c deleted file mode 100644 index 8a5c4caac..000000000 --- a/src/libdts/bitstream.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * bitstream.c - * Copyright (C) 2004 Gildas Bazin - * Copyright (C) 2000-2003 Michel Lespinasse - * Copyright (C) 1999-2000 Aaron Holtzman - * - * This file is part of dtsdec, a free DTS Coherent Acoustics stream decoder. - * See http://www.videolan.org/dtsdec.html for updates. - * - * dtsdec 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. - * - * dtsdec 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 - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "config.h" - -#include - -#include "dts.h" -#include "dts_internal.h" -#include "bitstream.h" - -#define BUFFER_SIZE 4096 - -void dts_bitstream_init (dts_state_t * state, uint8_t * buf, int word_mode, - int bigendian_mode) -{ - intptr_t align; - - align = (uintptr_t)buf & 3; - state->buffer_start = (uint32_t *) (buf - align); - state->bits_left = 0; - state->current_word = 0; - state->word_mode = word_mode; - state->bigendian_mode = bigendian_mode; - bitstream_get (state, align * 8); -} -#include -static inline void bitstream_fill_current (dts_state_t * state) -{ - uint32_t tmp; - - tmp = *(state->buffer_start++); - - if (state->bigendian_mode) - state->current_word = swab32 (tmp); - else - state->current_word = swable32 (tmp); - - if (!state->word_mode) - { - state->current_word = (state->current_word & 0x00003FFF) | - ((state->current_word & 0x3FFF0000 ) >> 2); - } -} - -/* - * The fast paths for _get is in the - * bitstream.h header file so it can be inlined. - * - * The "bottom half" of this routine is suffixed _bh - * - * -ah - */ - -uint32_t dts_bitstream_get_bh (dts_state_t * state, uint32_t num_bits) -{ - uint32_t result; - - num_bits -= state->bits_left; - - result = ((state->current_word << (32 - state->bits_left)) >> - (32 - state->bits_left)); - - if ( !state->word_mode && num_bits > 28 ) { - bitstream_fill_current (state); - result = (result << 28) | state->current_word; - num_bits -= 28; - } - - bitstream_fill_current (state); - - if ( state->word_mode ) - { - if (num_bits != 0) - result = (result << num_bits) | - (state->current_word >> (32 - num_bits)); - - state->bits_left = 32 - num_bits; - } - else - { - if (num_bits != 0) - result = (result << num_bits) | - (state->current_word >> (28 - num_bits)); - - state->bits_left = 28 - num_bits; - } - - return result; -} -- cgit v1.2.3