// (c) Copyright 2006-2007, Grazvydas "notaz" Ignotas\r
\r
#include "940shared.h"\r
+#include "../../common/mp3.h"\r
\r
static _940_data_t *shared_data = (_940_data_t *) 0x00100000;\r
static _940_ctl_t *shared_ctl = (_940_ctl_t *) 0x00200000;\r
// asm volatile ("mcr p15, 0, r0, c7, c10, 4" ::: "r0"); /* drain write buffer */\r
\r
\r
-static int find_sync_word(unsigned char *buf, int nBytes)\r
-{\r
- unsigned char *p, *pe;\r
-\r
- /* find byte-aligned syncword - need 12 (MPEG 1,2) or 11 (MPEG 2.5) matching bits */\r
- for (p = buf, pe = buf + nBytes - 4; p < pe; p++)\r
- {\r
- int pn;\r
- if (p[0] != 0xff) continue;\r
- pn = p[1];\r
- if ((pn & 0xf8) != 0xf8 || // currently must be MPEG1\r
- (pn & 6) == 0) { // invalid layer\r
- p++; continue;\r
- }\r
- pn = p[2];\r
- if ((pn & 0xf0) < 0x20 || (pn & 0xf0) == 0xf0 || // bitrates\r
- (pn & 0x0c) != 0) { // not 44kHz\r
- continue;\r
- }\r
-\r
- return p - buf;\r
- }\r
-\r
- return -1;\r
-}\r
-\r
static void mp3_decode(void)\r
{\r
int mp3_offs = shared_ctl->mp3_offs;\r
\r
for (retries = 0; retries < 2; retries++)\r
{\r
- offset = find_sync_word(readPtr, bytesLeft);\r
+ offset = mp3_find_sync_word(readPtr, bytesLeft);\r
if (offset < 0)\r
goto set_eof;\r
\r