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author | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
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committer | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
commit | 7039a05147b8bbfc829babea1c65bd436450b505 (patch) | |
tree | 4ba555eb84ed97b72b0575034d5b0530a393713e /songdbj/org/tritonus/lowlevel/pogg/Page.java | |
parent | 6d4c19707ef95942e323cbdc89fbbfdbe45e7cc5 (diff) | |
download | rockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.gz rockbox-7039a05147b8bbfc829babea1c65bd436450b505.zip |
Splitting out songdbj
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11953 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'songdbj/org/tritonus/lowlevel/pogg/Page.java')
-rw-r--r-- | songdbj/org/tritonus/lowlevel/pogg/Page.java | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/songdbj/org/tritonus/lowlevel/pogg/Page.java b/songdbj/org/tritonus/lowlevel/pogg/Page.java deleted file mode 100644 index 3f89d7166e..0000000000 --- a/songdbj/org/tritonus/lowlevel/pogg/Page.java +++ /dev/null | |||
@@ -1,298 +0,0 @@ | |||
1 | /* | ||
2 | * Page.java | ||
3 | * | ||
4 | * This file is part of Tritonus: http://www.tritonus.org/ | ||
5 | */ | ||
6 | |||
7 | /* | ||
8 | * Copyright (c) 2000 - 2001 by Matthias Pfisterer | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU Library General Public License as published | ||
12 | * by the Free Software Foundation; either version 2 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * This program is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU Library General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU Library General Public | ||
21 | * License along with this program; if not, write to the Free Software | ||
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
23 | */ | ||
24 | |||
25 | /* | ||
26 | |<--- this code is formatted to fit into 80 columns --->| | ||
27 | */ | ||
28 | |||
29 | package org.tritonus.lowlevel.pogg; | ||
30 | |||
31 | import org.tritonus.share.TDebug; | ||
32 | |||
33 | |||
34 | |||
35 | /** Wrapper for ogg_page. | ||
36 | */ | ||
37 | public class Page | ||
38 | { | ||
39 | private static final int[] crc_lookup = | ||
40 | { | ||
41 | 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9, | ||
42 | 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005, | ||
43 | 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61, | ||
44 | 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd, | ||
45 | 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9, | ||
46 | 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75, | ||
47 | 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011, | ||
48 | 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd, | ||
49 | 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039, | ||
50 | 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5, | ||
51 | 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81, | ||
52 | 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d, | ||
53 | 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49, | ||
54 | 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95, | ||
55 | 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1, | ||
56 | 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d, | ||
57 | 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae, | ||
58 | 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072, | ||
59 | 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16, | ||
60 | 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca, | ||
61 | 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde, | ||
62 | 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02, | ||
63 | 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066, | ||
64 | 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba, | ||
65 | 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e, | ||
66 | 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692, | ||
67 | 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6, | ||
68 | 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a, | ||
69 | 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e, | ||
70 | 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2, | ||
71 | 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686, | ||
72 | 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a, | ||
73 | 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637, | ||
74 | 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb, | ||
75 | 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f, | ||
76 | 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53, | ||
77 | 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47, | ||
78 | 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b, | ||
79 | 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff, | ||
80 | 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623, | ||
81 | 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7, | ||
82 | 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b, | ||
83 | 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f, | ||
84 | 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3, | ||
85 | 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7, | ||
86 | 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b, | ||
87 | 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f, | ||
88 | 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3, | ||
89 | 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640, | ||
90 | 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c, | ||
91 | 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8, | ||
92 | 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24, | ||
93 | 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30, | ||
94 | 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec, | ||
95 | 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088, | ||
96 | 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654, | ||
97 | 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0, | ||
98 | 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c, | ||
99 | 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18, | ||
100 | 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4, | ||
101 | 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0, | ||
102 | 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c, | ||
103 | 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668, | ||
104 | 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4 | ||
105 | }; | ||
106 | |||
107 | |||
108 | private byte[] m_abHeader; | ||
109 | private int m_nHeaderLength; | ||
110 | private byte[] m_abBody; | ||
111 | private int m_nBodyLength; | ||
112 | |||
113 | |||
114 | public Page() | ||
115 | { | ||
116 | if (TDebug.TraceOggNative) { TDebug.out("Page.<init>(): begin"); } | ||
117 | if (TDebug.TraceOggNative) { TDebug.out("Page.<init>(): end"); } | ||
118 | } | ||
119 | |||
120 | |||
121 | |||
122 | private native int malloc(); | ||
123 | |||
124 | // TODO: remove calls to this method | ||
125 | public void free() | ||
126 | { | ||
127 | } | ||
128 | |||
129 | |||
130 | /** Calls ogg_page_version(). | ||
131 | */ | ||
132 | public int getVersion() | ||
133 | { | ||
134 | return m_abHeader[4] & 0xFF; | ||
135 | } | ||
136 | |||
137 | |||
138 | /** Calls ogg_page_continued(). | ||
139 | */ | ||
140 | public boolean isContinued() | ||
141 | { | ||
142 | return (m_abHeader[5] & 0x01) != 0; | ||
143 | } | ||
144 | |||
145 | |||
146 | |||
147 | /** Calls ogg_page_packets(). | ||
148 | */ | ||
149 | /* returns the number of packets that are completed on this page (if | ||
150 | the leading packet is begun on a previous page, but ends on this | ||
151 | page, it's counted */ | ||
152 | |||
153 | /* NOTE: | ||
154 | If a page consists of a packet begun on a previous page, and a new | ||
155 | packet begun (but not completed) on this page, the return will be: | ||
156 | ogg_page_packets(page) ==1, | ||
157 | ogg_page_continued(page) !=0 | ||
158 | |||
159 | If a page happens to be a single packet that was begun on a | ||
160 | previous page, and spans to the next page (in the case of a three or | ||
161 | more page packet), the return will be: | ||
162 | ogg_page_packets(page) ==0, | ||
163 | ogg_page_continued(page) !=0 | ||
164 | */ | ||
165 | public int getPackets() | ||
166 | { | ||
167 | int n = m_abHeader[26] & 0xFF; | ||
168 | int count = 0; | ||
169 | for (int i = 0; i < n; i++) | ||
170 | if ((m_abHeader[27 + i] & 0xFF) < 255) | ||
171 | count++; | ||
172 | return count; | ||
173 | } | ||
174 | |||
175 | |||
176 | |||
177 | /** Calls ogg_page_bos(). | ||
178 | */ | ||
179 | public boolean isBos() | ||
180 | { | ||
181 | return (m_abHeader[5] & 0x02) != 0; | ||
182 | } | ||
183 | |||
184 | |||
185 | |||
186 | /** Calls ogg_page_eos(). | ||
187 | */ | ||
188 | public boolean isEos() | ||
189 | { | ||
190 | return (m_abHeader[5] & 0x04) != 0; | ||
191 | } | ||
192 | |||
193 | |||
194 | |||
195 | /** Calls ogg_page_granulepos(). | ||
196 | */ | ||
197 | public long getGranulePos() | ||
198 | { | ||
199 | long granulepos = m_abHeader[13]&(0xff); | ||
200 | granulepos = (granulepos<<8)|(m_abHeader[12] & 0xFF); | ||
201 | granulepos = (granulepos<<8)|(m_abHeader[11] & 0xFF); | ||
202 | granulepos = (granulepos<<8)|(m_abHeader[10] & 0xFF); | ||
203 | granulepos = (granulepos<<8)|(m_abHeader[9] & 0xFF); | ||
204 | granulepos = (granulepos<<8)|(m_abHeader[8] & 0xFF); | ||
205 | granulepos = (granulepos<<8)|(m_abHeader[7] & 0xFF); | ||
206 | granulepos = (granulepos<<8)|(m_abHeader[6] & 0xFF); | ||
207 | return granulepos; | ||
208 | } | ||
209 | |||
210 | |||
211 | |||
212 | /** Calls ogg_page_serialno(). | ||
213 | */ | ||
214 | public int getSerialNo() | ||
215 | { | ||
216 | return m_abHeader[14] | | ||
217 | (m_abHeader[15] << 8) | | ||
218 | (m_abHeader[16] << 16) | | ||
219 | (m_abHeader[17] << 24); | ||
220 | } | ||
221 | |||
222 | |||
223 | |||
224 | /** Calls ogg_page_pageno(). | ||
225 | */ | ||
226 | public int getPageNo() | ||
227 | { | ||
228 | return m_abHeader[18] | | ||
229 | (m_abHeader[19] << 8) | | ||
230 | (m_abHeader[20] << 16) | | ||
231 | (m_abHeader[21] << 24); | ||
232 | } | ||
233 | |||
234 | |||
235 | |||
236 | /** Calls ogg_page_checksum_set(). | ||
237 | */ | ||
238 | public void setChecksum() | ||
239 | { | ||
240 | int crc_reg = 0; | ||
241 | |||
242 | /* safety; needed for API behavior, but not framing code */ | ||
243 | m_abHeader[22]=0; | ||
244 | m_abHeader[23]=0; | ||
245 | m_abHeader[24]=0; | ||
246 | m_abHeader[25]=0; | ||
247 | |||
248 | for(int i = 0; i < m_nHeaderLength; i++) | ||
249 | crc_reg = (crc_reg << 8) ^ crc_lookup[((crc_reg >>> 24) & 0xff) ^ (m_abHeader[i] & 0xFF)]; | ||
250 | for(int i = 0; i < m_nBodyLength; i++) | ||
251 | crc_reg = (crc_reg << 8) ^ crc_lookup[((crc_reg >>> 24) & 0xff) ^ (m_abBody[i] & 0xFF)]; | ||
252 | |||
253 | m_abHeader[22] = (byte) (crc_reg & 0xff); | ||
254 | m_abHeader[23] = (byte) ((crc_reg >> 8) & 0xff); | ||
255 | m_abHeader[24] = (byte) ((crc_reg >> 16) & 0xff); | ||
256 | m_abHeader[25] = (byte) ((crc_reg >> 24) & 0xff); | ||
257 | } | ||
258 | |||
259 | |||
260 | |||
261 | |||
262 | public byte[] getHeader() | ||
263 | { | ||
264 | byte[] abHeader = new byte[m_nHeaderLength]; | ||
265 | System.arraycopy(m_abHeader, 0, abHeader, 0, m_nHeaderLength); | ||
266 | return abHeader; | ||
267 | } | ||
268 | |||
269 | |||
270 | |||
271 | public byte[] getBody() | ||
272 | { | ||
273 | byte[] abBody = new byte[m_nBodyLength]; | ||
274 | System.arraycopy(m_abBody, 0, abBody, 0, m_nBodyLength); | ||
275 | return abBody; | ||
276 | } | ||
277 | |||
278 | |||
279 | |||
280 | public void setData(byte[] abHeader, int nHeaderOffset, | ||
281 | int nHeaderLength, | ||
282 | byte[] abBody, int nBodyOffset, | ||
283 | int nBodyLength) | ||
284 | { | ||
285 | m_abHeader = new byte[nHeaderLength]; | ||
286 | System.arraycopy(abHeader, nHeaderOffset, m_abHeader, 0, nHeaderLength); | ||
287 | m_nHeaderLength = nHeaderLength; | ||
288 | m_abBody = new byte[nBodyLength]; | ||
289 | System.arraycopy(abBody, nBodyOffset, m_abBody, 0, nBodyLength); | ||
290 | m_nBodyLength = nBodyLength; | ||
291 | } | ||
292 | } | ||
293 | |||
294 | |||
295 | |||
296 | |||
297 | |||
298 | /*** Page.java ***/ | ||