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authorSean Bartell <wingedtachikoma@gmail.com>2011-06-25 21:32:25 -0400
committerNils Wallménius <nils@rockbox.org>2012-04-25 22:13:20 +0200
commitf40bfc9267b13b54e6379dfe7539447662879d24 (patch)
tree9b20069d5e62809ff434061ad730096836f916f2 /apps/codecs/liba52/bitstream.c
parenta0009907de7a0107d49040d8a180f140e2eff299 (diff)
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Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'apps/codecs/liba52/bitstream.c')
-rw-r--r--apps/codecs/liba52/bitstream.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/apps/codecs/liba52/bitstream.c b/apps/codecs/liba52/bitstream.c
deleted file mode 100644
index 155368f..0000000
--- a/apps/codecs/liba52/bitstream.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * bitstream.c
- * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec 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.
- *
- * a52dec 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-a52.h"
-
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-#include "bitstream.h"
-
-#define BUFFER_SIZE 4096
-
-void a52_bitstream_set_ptr (a52_state_t * state, uint8_t * buf)
-{
- int align;
-
- align = (long)buf & 3;
- state->buffer_start = (uint32_t *) (buf - align);
- state->bits_left = 0;
- state->current_word = 0;
- bitstream_get (state, align * 8);
- bitstream_get_2 (state, 0); /* pretend function is used - keep gcc happy */
-}
-
-static inline void bitstream_fill_current (a52_state_t * state)
-{
- uint32_t tmp;
-
- tmp = *(state->buffer_start++);
- state->current_word = swab32 (tmp);
-}
-
-/*
- * 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 a52_bitstream_get_bh (a52_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));
-
- bitstream_fill_current (state);
-
- if (num_bits != 0)
- result = (result << num_bits) | (state->current_word >> (32 - num_bits));
-
- state->bits_left = 32 - num_bits;
-
- return result;
-}
-
-int32_t a52_bitstream_get_bh_2 (a52_state_t * state, uint32_t num_bits)
-{
- int32_t result;
-
- num_bits -= state->bits_left;
- result = ((((int32_t)state->current_word) << (32 - state->bits_left)) >>
- (32 - state->bits_left));
-
- bitstream_fill_current(state);
-
- if (num_bits != 0)
- result = (result << num_bits) | (state->current_word >> (32 - num_bits));
-
- state->bits_left = 32 - num_bits;
-
- return result;
-}