X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=bitstream.c;h=dfc1e55e67aced611014fc90b86128e8bd61a457;hp=638d19a3579b02053bd281e29e7f39d2bf54495c;hb=f932f45196a8a4480ad910c455abe8aae9824967;hpb=d2b2c210d1e388a29cef3d8189d6d80f3299b439 diff --git a/bitstream.c b/bitstream.c index 638d19a3..dfc1e55e 100644 --- a/bitstream.c +++ b/bitstream.c @@ -6,9 +6,9 @@ * Copyright (c) 2000, 2001 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer * alternative bitstream reader & writer by Michael Niedermayer + * Copyright (C) 2009 Andre Noll * - * Licensed under the GNU Lesser General Public License. - * For licencing details see COPYING.LIB. + * Licensed under the GNU Lesser General Public License. see file COPYING.LIB. */ /** \file bitstream.c Bitstream API for the wma decoder. */ @@ -19,6 +19,7 @@ #include "error.h" #include "string.h" #include "wma.h" +#include "portable_io.h" #include "bitstream.h" static inline uint32_t get_data(const void *table, int i, int size) @@ -46,7 +47,7 @@ static void alloc_table(struct vlc *vlc, int size) if (vlc->table_size > vlc->table_allocated) { vlc->table_allocated += (1 << vlc->bits); vlc->table = para_realloc(vlc->table, - sizeof(VLC_TYPE) * 2 * vlc->table_allocated); + sizeof(int16_t) * 2 * vlc->table_allocated); } } @@ -56,7 +57,7 @@ static int build_table(struct vlc *vlc, int table_nb_bits, int nb_codes, { int i, j, k, n, table_size, table_index, nb, n1, idx; uint32_t code; - VLC_TYPE(*table)[2]; + int16_t (*table)[2]; table_size = 1 << table_nb_bits; table_index = vlc->table_size; @@ -164,33 +165,29 @@ void free_vlc(struct vlc *vlc) * Parse a vlc code. * * \param gbc The getbit context structure. - * \param table The vlc tables to use. - * \param bits The number of bits which will be read at once. - * - * The \a bits parameter must be identical to the \a nb_bits value supplied to - * \ref init_vlc(). + * \param vlc The vlc tables to use. * * \return The vlc code. */ -int get_vlc(struct getbit_context *gbc, VLC_TYPE(*table)[2], int bits) +int get_vlc(struct getbit_context *gbc, const struct vlc *vlc) { int n, idx, nb_bits, code; - idx = show_bits(gbc, bits); - code = table[idx][0]; - n = table[idx][1]; + idx = show_bits(gbc, vlc->bits); + code = vlc->table[idx][0]; + n = vlc->table[idx][1]; if (n < 0) { - skip_bits(gbc, bits); + skip_bits(gbc, vlc->bits); nb_bits = -n; idx = show_bits(gbc, nb_bits) + code; - code = table[idx][0]; - n = table[idx][1]; + code = vlc->table[idx][0]; + n = vlc->table[idx][1]; if (n < 0) { skip_bits(gbc, nb_bits); nb_bits = -n; idx = show_bits(gbc, nb_bits) + code; - code = table[idx][0]; - n = table[idx][1]; + code = vlc->table[idx][0]; + n = vlc->table[idx][1]; } } skip_bits(gbc, n);