1 /*
2 * dvb_filter.h
3 *
4 * Copyright (C) 2003 Convergence GmbH
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 2.1
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 #ifndef _DVB_FILTER_H_
22 #define _DVB_FILTER_H_
23
24 #include <linux/slab.h>
25
26 #include "demux.h"
27
28 typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *);
29
30 struct dvb_filter_pes2ts {
31 unsigned char buf[188];
32 unsigned char cc;
33 dvb_filter_pes2ts_cb_t *cb;
34 void *priv;
35 };
36
37 void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, unsigned short pid,
38 dvb_filter_pes2ts_cb_t *cb, void *priv);
39
40 int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, unsigned char *pes,
41 int len, int payload_start);
42
43
44 #define PROG_STREAM_MAP 0xBC
45 #define PRIVATE_STREAM1 0xBD
46 #define PADDING_STREAM 0xBE
47 #define PRIVATE_STREAM2 0xBF
48 #define AUDIO_STREAM_S 0xC0
49 #define AUDIO_STREAM_E 0xDF
50 #define VIDEO_STREAM_S 0xE0
51 #define VIDEO_STREAM_E 0xEF
52 #define ECM_STREAM 0xF0
53 #define EMM_STREAM 0xF1
54 #define DSM_CC_STREAM 0xF2
55 #define ISO13522_STREAM 0xF3
56 #define PROG_STREAM_DIR 0xFF
57
58 #define DVB_PICTURE_START 0x00
59 #define DVB_USER_START 0xb2
60 #define DVB_SEQUENCE_HEADER 0xb3
61 #define DVB_SEQUENCE_ERROR 0xb4
62 #define DVB_EXTENSION_START 0xb5
63 #define DVB_SEQUENCE_END 0xb7
64 #define DVB_GOP_START 0xb8
65 #define DVB_EXCEPT_SLICE 0xb0
66
67 #define SEQUENCE_EXTENSION 0x01
68 #define SEQUENCE_DISPLAY_EXTENSION 0x02
69 #define PICTURE_CODING_EXTENSION 0x08
70 #define QUANT_MATRIX_EXTENSION 0x03
71 #define PICTURE_DISPLAY_EXTENSION 0x07
72
73 #define I_FRAME 0x01
74 #define B_FRAME 0x02
75 #define P_FRAME 0x03
76
77 /* Initialize sequence_data */
78 #define INIT_HORIZONTAL_SIZE 720
79 #define INIT_VERTICAL_SIZE 576
80 #define INIT_ASPECT_RATIO 0x02
81 #define INIT_FRAME_RATE 0x03
82 #define INIT_DISP_HORIZONTAL_SIZE 540
83 #define INIT_DISP_VERTICAL_SIZE 576
84
85
86 //flags2
87 #define PTS_DTS_FLAGS 0xC0
88 #define ESCR_FLAG 0x20
89 #define ES_RATE_FLAG 0x10
90 #define DSM_TRICK_FLAG 0x08
91 #define ADD_CPY_FLAG 0x04
92 #define PES_CRC_FLAG 0x02
93 #define PES_EXT_FLAG 0x01
94
95 //pts_dts flags
96 #define PTS_ONLY 0x80
97 #define PTS_DTS 0xC0
98
99 #define TS_SIZE 188
100 #define TRANS_ERROR 0x80
101 #define PAY_START 0x40
102 #define TRANS_PRIO 0x20
103 #define PID_MASK_HI 0x1F
104 //flags
105 #define TRANS_SCRMBL1 0x80
106 #define TRANS_SCRMBL2 0x40
107 #define ADAPT_FIELD 0x20
108 #define PAYLOAD 0x10
109 #define COUNT_MASK 0x0F
110
111 // adaptation flags
112 #define DISCON_IND 0x80
113 #define RAND_ACC_IND 0x40
114 #define ES_PRI_IND 0x20
115 #define PCR_FLAG 0x10
116 #define OPCR_FLAG 0x08
117 #define SPLICE_FLAG 0x04
118 #define TRANS_PRIV 0x02
119 #define ADAP_EXT_FLAG 0x01
120
121 // adaptation extension flags
122 #define LTW_FLAG 0x80
123 #define PIECE_RATE 0x40
124 #define SEAM_SPLICE 0x20
125
126
127 #define MAX_PLENGTH 0xFFFF
128 #define MMAX_PLENGTH (256*MAX_PLENGTH)
129
130 #ifndef IPACKS
131 #define IPACKS 2048
132 #endif
133
134 struct ipack {
135 int size;
136 int found;
137 u8 *buf;
138 u8 cid;
139 u32 plength;
140 u8 plen[2];
141 u8 flag1;
142 u8 flag2;
143 u8 hlength;
144 u8 pts[5];
145 u16 *pid;
146 int mpeg;
147 u8 check;
148 int which;
149 int done;
150 void *data;
151 void (*func)(u8 *buf, int size, void *priv);
152 int count;
153 int repack_subids;
154 };
155
156 struct dvb_video_info {
157 u32 horizontal_size;
158 u32 vertical_size;
159 u32 aspect_ratio;
160 u32 framerate;
161 u32 video_format;
162 u32 bit_rate;
163 u32 comp_bit_rate;
164 u32 vbv_buffer_size;
165 s16 vbv_delay;
166 u32 CSPF;
167 u32 off;
168 };
169
170 #define OFF_SIZE 4
171 #define FIRST_FIELD 0
172 #define SECOND_FIELD 1
173 #define VIDEO_FRAME_PICTURE 0x03
174
175 struct mpg_picture {
176 int channel;
177 struct dvb_video_info vinfo;
178 u32 *sequence_gop_header;
179 u32 *picture_header;
180 s32 time_code;
181 int low_delay;
182 int closed_gop;
183 int broken_link;
184 int sequence_header_flag;
185 int gop_flag;
186 int sequence_end_flag;
187
188 u8 profile_and_level;
189 s32 picture_coding_parameter;
190 u32 matrix[32];
191 s8 matrix_change_flag;
192
193 u8 picture_header_parameter;
194 /* bit 0 - 2: bwd f code
195 bit 3 : fpb vector
196 bit 4 - 6: fwd f code
197 bit 7 : fpf vector */
198
199 int mpeg1_flag;
200 int progressive_sequence;
201 int sequence_display_extension_flag;
202 u32 sequence_header_data;
203 s16 last_frame_centre_horizontal_offset;
204 s16 last_frame_centre_vertical_offset;
205
206 u32 pts[2]; /* [0] 1st field, [1] 2nd field */
207 int top_field_first;
208 int repeat_first_field;
209 int progressive_frame;
210 int bank;
211 int forward_bank;
212 int backward_bank;
213 int compress;
214 s16 frame_centre_horizontal_offset[OFF_SIZE];
215 /* [0-2] 1st field, [3] 2nd field */
216 s16 frame_centre_vertical_offset[OFF_SIZE];
217 /* [0-2] 1st field, [3] 2nd field */
218 s16 temporal_reference[2];
219 /* [0] 1st field, [1] 2nd field */
220
221 s8 picture_coding_type[2];
222 /* [0] 1st field, [1] 2nd field */
223 s8 picture_structure[2];
224 /* [0] 1st field, [1] 2nd field */
225 s8 picture_display_extension_flag[2];
226 /* [0] 1st field, [1] 2nd field */
227 /* picture_display_extenion() 0:no 1:exit*/
228 s8 pts_flag[2];
229 /* [0] 1st field, [1] 2nd field */
230 };
231
232 struct dvb_audio_info {
233 int layer;
234 u32 bit_rate;
235 u32 frequency;
236 u32 mode;
237 u32 mode_extension ;
238 u32 emphasis;
239 u32 framesize;
240 u32 off;
241 };
242
243 int dvb_filter_get_ac3info(u8 *mbuf, int count, struct dvb_audio_info *ai, int pr);
244
245
246 #endif
247
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