drivers/media/dvb-core/dvb_filter.h

   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