X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=bitstream.c;h=1593b99ee5bda9fe6f7e47b6ab63c445a10ad529;hp=fb638d0a83317568c89e00a56d6bd375e6326a41;hb=8529eea3d452cbe151239edc6461bfd5c2655b5b;hpb=ba3cef172b3f905315c0279d0a664df4d1db149c diff --git a/bitstream.c b/bitstream.c index fb638d0a..1593b99e 100644 --- a/bitstream.c +++ b/bitstream.c @@ -13,10 +13,6 @@ /** \file bitstream.c Bitstream API for the wma decoder. */ -#include -#include -#include -#include #include #include "para.h" @@ -25,21 +21,23 @@ #include "wma.h" #include "bitstream.h" -/** Read an 8, 16, or 32 bit entity from a VLC table. */ -#define GET_DATA(v, table, i, size) \ -{\ - const uint8_t *ptr = (const uint8_t *)table + i * size; \ - switch (size) { \ - case 1: \ - v = *(const uint8_t *)ptr; \ - break; \ - case 2: \ - v = *(const uint16_t *)ptr; \ - break; \ - default: \ - v = *(const uint32_t *)ptr; \ - break; \ - } \ +static inline uint32_t get_data(const void *table, int i, int size) +{ + const uint8_t *ptr = (const uint8_t *)table + i * size; + uint32_t v; + + switch (size) { + case 1: + v = *(const uint8_t *)ptr; + break; + case 2: + v = *(const uint16_t *)ptr; + break; + default: + v = *(const uint32_t *)ptr; + break; + } + return v; } static void alloc_table(struct vlc *vlc, int size) @@ -72,12 +70,12 @@ static int build_table(struct vlc *vlc, int table_nb_bits, int nb_codes, /* map codes and compute auxiliary table sizes */ for (i = 0; i < nb_codes; i++) { - GET_DATA(n, bits, i, 1); + n = get_data(bits, i, 1); /* we accept tables with holes */ n -= n_prefix; if (n <= 0) continue; - GET_DATA(code, codes, i, codes_size); + code = get_data(codes, i, codes_size); /* if code matches the prefix, it is in the table */ if ((code >> n) != code_prefix) continue;