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-rw-r--r--drivers/media/pci/ttpci/Makefile2
-rw-r--r--drivers/media/pci/ttpci/dvb_filter.c600
-rw-r--r--drivers/media/pci/ttpci/dvb_filter.h246
3 files changed, 847 insertions, 1 deletions
diff --git a/drivers/media/pci/ttpci/Makefile b/drivers/media/pci/ttpci/Makefile
index 49f71b1eaf14..3cf617737f7c 100644
--- a/drivers/media/pci/ttpci/Makefile
+++ b/drivers/media/pci/ttpci/Makefile
@@ -3,7 +3,7 @@
# and the AV7110 DVB device driver
#
-dvb-ttpci-objs := av7110_hw.o av7110_v4l.o av7110_av.o av7110_ca.o av7110.o av7110_ipack.o
+dvb-ttpci-objs := av7110_hw.o av7110_v4l.o av7110_av.o av7110_ca.o av7110.o av7110_ipack.o dvb_filter.o
ifdef CONFIG_DVB_AV7110_IR
dvb-ttpci-objs += av7110_ir.o
diff --git a/drivers/media/pci/ttpci/dvb_filter.c b/drivers/media/pci/ttpci/dvb_filter.c
new file mode 100644
index 000000000000..6395812ed1f1
--- /dev/null
+++ b/drivers/media/pci/ttpci/dvb_filter.c
@@ -0,0 +1,600 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include "dvb_filter.h"
+
+#if 0
+static unsigned int bitrates[3][16] =
+{{0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,0},
+ {0,32,48,56,64,80,96,112,128,160,192,224,256,320,384,0},
+ {0,32,40,48,56,64,80,96,112,128,160,192,224,256,320,0}};
+#endif
+
+static u32 freq[4] = {480, 441, 320, 0};
+
+static unsigned int ac3_bitrates[32] =
+ {32,40,48,56,64,80,96,112,128,160,192,224,256,320,384,448,512,576,640,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0};
+
+static u32 ac3_frames[3][32] =
+ {{64,80,96,112,128,160,192,224,256,320,384,448,512,640,768,896,1024,
+ 1152,1280,0,0,0,0,0,0,0,0,0,0,0,0,0},
+ {69,87,104,121,139,174,208,243,278,348,417,487,557,696,835,975,1114,
+ 1253,1393,0,0,0,0,0,0,0,0,0,0,0,0,0},
+ {96,120,144,168,192,240,288,336,384,480,576,672,768,960,1152,1344,
+ 1536,1728,1920,0,0,0,0,0,0,0,0,0,0,0,0,0}};
+
+
+
+#if 0
+static void setup_ts2pes(ipack *pa, ipack *pv, u16 *pida, u16 *pidv,
+ void (*pes_write)(u8 *buf, int count, void *data),
+ void *priv)
+{
+ dvb_filter_ipack_init(pa, IPACKS, pes_write);
+ dvb_filter_ipack_init(pv, IPACKS, pes_write);
+ pa->pid = pida;
+ pv->pid = pidv;
+ pa->data = priv;
+ pv->data = priv;
+}
+#endif
+
+#if 0
+static void ts_to_pes(ipack *p, u8 *buf) // don't need count (=188)
+{
+ u8 off = 0;
+
+ if (!buf || !p ){
+ printk("NULL POINTER IDIOT\n");
+ return;
+ }
+ if (buf[1]&PAY_START) {
+ if (p->plength == MMAX_PLENGTH-6 && p->found>6){
+ p->plength = p->found-6;
+ p->found = 0;
+ send_ipack(p);
+ dvb_filter_ipack_reset(p);
+ }
+ }
+ if (buf[3] & ADAPT_FIELD) { // adaptation field?
+ off = buf[4] + 1;
+ if (off+4 > 187) return;
+ }
+ dvb_filter_instant_repack(buf+4+off, TS_SIZE-4-off, p);
+}
+#endif
+
+#if 0
+/* needs 5 byte input, returns picture coding type*/
+static int read_picture_header(u8 *headr, struct mpg_picture *pic, int field, int pr)
+{
+ u8 pct;
+
+ if (pr) printk( "Pic header: ");
+ pic->temporal_reference[field] = (( headr[0] << 2 ) |
+ (headr[1] & 0x03) )& 0x03ff;
+ if (pr) printk( " temp ref: 0x%04x", pic->temporal_reference[field]);
+
+ pct = ( headr[1] >> 2 ) & 0x07;
+ pic->picture_coding_type[field] = pct;
+ if (pr) {
+ switch(pct){
+ case I_FRAME:
+ printk( " I-FRAME");
+ break;
+ case B_FRAME:
+ printk( " B-FRAME");
+ break;
+ case P_FRAME:
+ printk( " P-FRAME");
+ break;
+ }
+ }
+
+
+ pic->vinfo.vbv_delay = (( headr[1] >> 5 ) | ( headr[2] << 3) |
+ ( (headr[3] & 0x1F) << 11) ) & 0xffff;
+
+ if (pr) printk( " vbv delay: 0x%04x", pic->vinfo.vbv_delay);
+
+ pic->picture_header_parameter = ( headr[3] & 0xe0 ) |
+ ((headr[4] & 0x80) >> 3);
+
+ if ( pct == B_FRAME ){
+ pic->picture_header_parameter |= ( headr[4] >> 3 ) & 0x0f;
+ }
+ if (pr) printk( " pic head param: 0x%x",
+ pic->picture_header_parameter);
+
+ return pct;
+}
+#endif
+
+#if 0
+/* needs 4 byte input */
+static int read_gop_header(u8 *headr, struct mpg_picture *pic, int pr)
+{
+ if (pr) printk("GOP header: ");
+
+ pic->time_code = (( headr[0] << 17 ) | ( headr[1] << 9) |
+ ( headr[2] << 1 ) | (headr[3] &0x01)) & 0x1ffffff;
+
+ if (pr) printk(" time: %d:%d.%d ", (headr[0]>>2)& 0x1F,
+ ((headr[0]<<4)& 0x30)| ((headr[1]>>4)& 0x0F),
+ ((headr[1]<<3)& 0x38)| ((headr[2]>>5)& 0x0F));
+
+ if ( ( headr[3] & 0x40 ) != 0 ){
+ pic->closed_gop = 1;
+ } else {
+ pic->closed_gop = 0;
+ }
+ if (pr) printk("closed: %d", pic->closed_gop);
+
+ if ( ( headr[3] & 0x20 ) != 0 ){
+ pic->broken_link = 1;
+ } else {
+ pic->broken_link = 0;
+ }
+ if (pr) printk(" broken: %d\n", pic->broken_link);
+
+ return 0;
+}
+#endif
+
+#if 0
+/* needs 8 byte input */
+static int read_sequence_header(u8 *headr, struct dvb_video_info *vi, int pr)
+{
+ int sw;
+ int form = -1;
+
+ if (pr) printk("Reading sequence header\n");
+
+ vi->horizontal_size = ((headr[1] &0xF0) >> 4) | (headr[0] << 4);
+ vi->vertical_size = ((headr[1] &0x0F) << 8) | (headr[2]);
+
+ sw = (int)((headr[3]&0xF0) >> 4) ;
+
+ switch( sw ){
+ case 1:
+ if (pr)
+ printk("Videostream: ASPECT: 1:1");
+ vi->aspect_ratio = 100;
+ break;
+ case 2:
+ if (pr)
+ printk("Videostream: ASPECT: 4:3");
+ vi->aspect_ratio = 133;
+ break;
+ case 3:
+ if (pr)
+ printk("Videostream: ASPECT: 16:9");
+ vi->aspect_ratio = 177;
+ break;
+ case 4:
+ if (pr)
+ printk("Videostream: ASPECT: 2.21:1");
+ vi->aspect_ratio = 221;
+ break;
+
+ case 5 ... 15:
+ if (pr)
+ printk("Videostream: ASPECT: reserved");
+ vi->aspect_ratio = 0;
+ break;
+
+ default:
+ vi->aspect_ratio = 0;
+ return -1;
+ }
+
+ if (pr)
+ printk(" Size = %dx%d",vi->horizontal_size,vi->vertical_size);
+
+ sw = (int)(headr[3]&0x0F);
+
+ switch ( sw ) {
+ case 1:
+ if (pr)
+ printk(" FRate: 23.976 fps");
+ vi->framerate = 23976;
+ form = -1;
+ break;
+ case 2:
+ if (pr)
+ printk(" FRate: 24 fps");
+ vi->framerate = 24000;
+ form = -1;
+ break;
+ case 3:
+ if (pr)
+ printk(" FRate: 25 fps");
+ vi->framerate = 25000;
+ form = VIDEO_MODE_PAL;
+ break;
+ case 4:
+ if (pr)
+ printk(" FRate: 29.97 fps");
+ vi->framerate = 29970;
+ form = VIDEO_MODE_NTSC;
+ break;
+ case 5:
+ if (pr)
+ printk(" FRate: 30 fps");
+ vi->framerate = 30000;
+ form = VIDEO_MODE_NTSC;
+ break;
+ case 6:
+ if (pr)
+ printk(" FRate: 50 fps");
+ vi->framerate = 50000;
+ form = VIDEO_MODE_PAL;
+ break;
+ case 7:
+ if (pr)
+ printk(" FRate: 60 fps");
+ vi->framerate = 60000;
+ form = VIDEO_MODE_NTSC;
+ break;
+ }
+
+ vi->bit_rate = (headr[4] << 10) | (headr[5] << 2) | (headr[6] & 0x03);
+
+ vi->vbv_buffer_size
+ = (( headr[6] & 0xF8) >> 3 ) | (( headr[7] & 0x1F )<< 5);
+
+ if (pr){
+ printk(" BRate: %d Mbit/s",4*(vi->bit_rate)/10000);
+ printk(" vbvbuffer %d",16*1024*(vi->vbv_buffer_size));
+ printk("\n");
+ }
+
+ vi->video_format = form;
+
+ return 0;
+}
+#endif
+
+
+#if 0
+static int get_vinfo(u8 *mbuf, int count, struct dvb_video_info *vi, int pr)
+{
+ u8 *headr;
+ int found = 0;
+ int c = 0;
+
+ while (found < 4 && c+4 < count){
+ u8 *b;
+
+ b = mbuf+c;
+ if ( b[0] == 0x00 && b[1] == 0x00 && b[2] == 0x01
+ && b[3] == 0xb3) found = 4;
+ else {
+ c++;
+ }
+ }
+
+ if (! found) return -1;
+ c += 4;
+ if (c+12 >= count) return -1;
+ headr = mbuf+c;
+ if (read_sequence_header(headr, vi, pr) < 0) return -1;
+ vi->off = c-4;
+ return 0;
+}
+#endif
+
+
+#if 0
+static int get_ainfo(u8 *mbuf, int count, struct dvb_audio_info *ai, int pr)
+{
+ u8 *headr;
+ int found = 0;
+ int c = 0;
+ int fr = 0;
+
+ while (found < 2 && c < count){
+ u8 b[2];
+ memcpy( b, mbuf+c, 2);
+
+ if ( b[0] == 0xff && (b[1] & 0xf8) == 0xf8)
+ found = 2;
+ else {
+ c++;
+ }
+ }
+
+ if (!found) return -1;
+
+ if (c+3 >= count) return -1;
+ headr = mbuf+c;
+
+ ai->layer = (headr[1] & 0x06) >> 1;
+
+ if (pr)
+ printk("Audiostream: Layer: %d", 4-ai->layer);
+
+
+ ai->bit_rate = bitrates[(3-ai->layer)][(headr[2] >> 4 )]*1000;
+
+ if (pr){
+ if (ai->bit_rate == 0)
+ printk(" Bit rate: free");
+ else if (ai->bit_rate == 0xf)
+ printk(" BRate: reserved");
+ else
+ printk(" BRate: %d kb/s", ai->bit_rate/1000);
+ }
+
+ fr = (headr[2] & 0x0c ) >> 2;
+ ai->frequency = freq[fr]*100;
+ if (pr){
+ if (ai->frequency == 3)
+ printk(" Freq: reserved\n");
+ else
+ printk(" Freq: %d kHz\n",ai->frequency);
+
+ }
+ ai->off = c;
+ return 0;
+}
+#endif
+
+
+int dvb_filter_get_ac3info(u8 *mbuf, int count, struct dvb_audio_info *ai, int pr)
+{
+ u8 *headr;
+ int found = 0;
+ int c = 0;
+ u8 frame = 0;
+ int fr = 0;
+
+ while ( !found && c < count){
+ u8 *b = mbuf+c;
+
+ if ( b[0] == 0x0b && b[1] == 0x77 )
+ found = 1;
+ else {
+ c++;
+ }
+ }
+
+ if (!found) return -1;
+ if (pr)
+ printk("Audiostream: AC3");
+
+ ai->off = c;
+ if (c+5 >= count) return -1;
+
+ ai->layer = 0; // 0 for AC3
+ headr = mbuf+c+2;
+
+ frame = (headr[2]&0x3f);
+ ai->bit_rate = ac3_bitrates[frame >> 1]*1000;
+
+ if (pr)
+ printk(" BRate: %d kb/s", (int) ai->bit_rate/1000);
+
+ ai->frequency = (headr[2] & 0xc0 ) >> 6;
+ fr = (headr[2] & 0xc0 ) >> 6;
+ ai->frequency = freq[fr]*100;
+ if (pr) printk (" Freq: %d Hz\n", (int) ai->frequency);
+
+
+ ai->framesize = ac3_frames[fr][frame >> 1];
+ if ((frame & 1) && (fr == 1)) ai->framesize++;
+ ai->framesize = ai->framesize << 1;
+ if (pr) printk (" Framesize %d\n",(int) ai->framesize);
+
+
+ return 0;
+}
+
+
+#if 0
+static u8 *skip_pes_header(u8 **bufp)
+{
+ u8 *inbuf = *bufp;
+ u8 *buf = inbuf;
+ u8 *pts = NULL;
+ int skip = 0;
+
+ static const int mpeg1_skip_table[16] = {
+ 1, 0xffff, 5, 10, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff
+ };
+
+
+ if ((inbuf[6] & 0xc0) == 0x80){ /* mpeg2 */
+ if (buf[7] & PTS_ONLY)
+ pts = buf+9;
+ else pts = NULL;
+ buf = inbuf + 9 + inbuf[8];
+ } else { /* mpeg1 */
+ for (buf = inbuf + 6; *buf == 0xff; buf++)
+ if (buf == inbuf + 6 + 16) {
+ break;
+ }
+ if ((*buf & 0xc0) == 0x40)
+ buf += 2;
+ skip = mpeg1_skip_table [*buf >> 4];
+ if (skip == 5 || skip == 10) pts = buf;
+ else pts = NULL;
+
+ buf += mpeg1_skip_table [*buf >> 4];
+ }
+
+ *bufp = buf;
+ return pts;
+}
+#endif
+
+#if 0
+static void initialize_quant_matrix( u32 *matrix )
+{
+ int i;
+
+ matrix[0] = 0x08101013;
+ matrix[1] = 0x10131616;
+ matrix[2] = 0x16161616;
+ matrix[3] = 0x1a181a1b;
+ matrix[4] = 0x1b1b1a1a;
+ matrix[5] = 0x1a1a1b1b;
+ matrix[6] = 0x1b1d1d1d;
+ matrix[7] = 0x2222221d;
+ matrix[8] = 0x1d1d1b1b;
+ matrix[9] = 0x1d1d2020;
+ matrix[10] = 0x22222526;
+ matrix[11] = 0x25232322;
+ matrix[12] = 0x23262628;
+ matrix[13] = 0x28283030;
+ matrix[14] = 0x2e2e3838;
+ matrix[15] = 0x3a454553;
+
+ for ( i = 16 ; i < 32 ; i++ )
+ matrix[i] = 0x10101010;
+}
+#endif
+
+#if 0
+static void initialize_mpg_picture(struct mpg_picture *pic)
+{
+ int i;
+
+ /* set MPEG1 */
+ pic->mpeg1_flag = 1;
+ pic->profile_and_level = 0x4A ; /* MP@LL */
+ pic->progressive_sequence = 1;
+ pic->low_delay = 0;
+
+ pic->sequence_display_extension_flag = 0;
+ for ( i = 0 ; i < 4 ; i++ ){
+ pic->frame_centre_horizontal_offset[i] = 0;
+ pic->frame_centre_vertical_offset[i] = 0;
+ }
+ pic->last_frame_centre_horizontal_offset = 0;
+ pic->last_frame_centre_vertical_offset = 0;
+
+ pic->picture_display_extension_flag[0] = 0;
+ pic->picture_display_extension_flag[1] = 0;
+ pic->sequence_header_flag = 0;
+ pic->gop_flag = 0;
+ pic->sequence_end_flag = 0;
+}
+#endif
+
+#if 0
+static void mpg_set_picture_parameter( int32_t field_type, struct mpg_picture *pic )
+{
+ int16_t last_h_offset;
+ int16_t last_v_offset;
+
+ int16_t *p_h_offset;
+ int16_t *p_v_offset;
+
+ if ( pic->mpeg1_flag ){
+ pic->picture_structure[field_type] = VIDEO_FRAME_PICTURE;
+ pic->top_field_first = 0;
+ pic->repeat_first_field = 0;
+ pic->progressive_frame = 1;
+ pic->picture_coding_parameter = 0x000010;
+ }
+
+ /* Reset flag */
+ pic->picture_display_extension_flag[field_type] = 0;
+
+ last_h_offset = pic->last_frame_centre_horizontal_offset;
+ last_v_offset = pic->last_frame_centre_vertical_offset;
+ if ( field_type == FIRST_FIELD ){
+ p_h_offset = pic->frame_centre_horizontal_offset;
+ p_v_offset = pic->frame_centre_vertical_offset;
+ *p_h_offset = last_h_offset;
+ *(p_h_offset + 1) = last_h_offset;
+ *(p_h_offset + 2) = last_h_offset;
+ *p_v_offset = last_v_offset;
+ *(p_v_offset + 1) = last_v_offset;
+ *(p_v_offset + 2) = last_v_offset;
+ } else {
+ pic->frame_centre_horizontal_offset[3] = last_h_offset;
+ pic->frame_centre_vertical_offset[3] = last_v_offset;
+ }
+}
+#endif
+
+#if 0
+static void init_mpg_picture( struct mpg_picture *pic, int chan, int32_t field_type)
+{
+ pic->picture_header = 0;
+ pic->sequence_header_data
+ = ( INIT_HORIZONTAL_SIZE << 20 )
+ | ( INIT_VERTICAL_SIZE << 8 )
+ | ( INIT_ASPECT_RATIO << 4 )
+ | ( INIT_FRAME_RATE );
+ pic->mpeg1_flag = 0;
+ pic->vinfo.horizontal_size
+ = INIT_DISP_HORIZONTAL_SIZE;
+ pic->vinfo.vertical_size
+ = INIT_DISP_VERTICAL_SIZE;
+ pic->picture_display_extension_flag[field_type]
+ = 0;
+ pic->pts_flag[field_type] = 0;
+
+ pic->sequence_gop_header = 0;
+ pic->picture_header = 0;
+ pic->sequence_header_flag = 0;
+ pic->gop_flag = 0;
+ pic->sequence_end_flag = 0;
+ pic->sequence_display_extension_flag = 0;
+ pic->last_frame_centre_horizontal_offset = 0;
+ pic->last_frame_centre_vertical_offset = 0;
+ pic->channel = chan;
+}
+#endif
+
+void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, unsigned short pid,
+ dvb_filter_pes2ts_cb_t *cb, void *priv)
+{
+ unsigned char *buf=p2ts->buf;
+
+ buf[0]=0x47;
+ buf[1]=(pid>>8);
+ buf[2]=pid&0xff;
+ p2ts->cc=0;
+ p2ts->cb=cb;
+ p2ts->priv=priv;
+}
+
+int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, unsigned char *pes,
+ int len, int payload_start)
+{
+ unsigned char *buf=p2ts->buf;
+ int ret=0, rest;
+
+ //len=6+((pes[4]<<8)|pes[5]);
+
+ if (payload_start)
+ buf[1]|=0x40;
+ else
+ buf[1]&=~0x40;
+ while (len>=184) {
+ buf[3]=0x10|((p2ts->cc++)&0x0f);
+ memcpy(buf+4, pes, 184);
+ if ((ret=p2ts->cb(p2ts->priv, buf)))
+ return ret;
+ len-=184; pes+=184;
+ buf[1]&=~0x40;
+ }
+ if (!len)
+ return 0;
+ buf[3]=0x30|((p2ts->cc++)&0x0f);
+ rest=183-len;
+ if (rest) {
+ buf[5]=0x00;
+ if (rest-1)
+ memset(buf+6, 0xff, rest-1);
+ }
+ buf[4]=rest;
+ memcpy(buf+5+rest, pes, len);
+ return p2ts->cb(p2ts->priv, buf);
+}
diff --git a/drivers/media/pci/ttpci/dvb_filter.h b/drivers/media/pci/ttpci/dvb_filter.h
new file mode 100644
index 000000000000..375e3be184b1
--- /dev/null
+++ b/drivers/media/pci/ttpci/dvb_filter.h
@@ -0,0 +1,246 @@
+/*
+ * dvb_filter.h
+ *
+ * Copyright (C) 2003 Convergence GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _DVB_FILTER_H_
+#define _DVB_FILTER_H_
+
+#include <linux/slab.h>
+
+#include "demux.h"
+
+typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *);
+
+struct dvb_filter_pes2ts {
+ unsigned char buf[188];
+ unsigned char cc;
+ dvb_filter_pes2ts_cb_t *cb;
+ void *priv;
+};
+
+void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, unsigned short pid,
+ dvb_filter_pes2ts_cb_t *cb, void *priv);
+
+int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, unsigned char *pes,
+ int len, int payload_start);
+
+
+#define PROG_STREAM_MAP 0xBC
+#define PRIVATE_STREAM1 0xBD
+#define PADDING_STREAM 0xBE
+#define PRIVATE_STREAM2 0xBF
+#define AUDIO_STREAM_S 0xC0
+#define AUDIO_STREAM_E 0xDF
+#define VIDEO_STREAM_S 0xE0
+#define VIDEO_STREAM_E 0xEF
+#define ECM_STREAM 0xF0
+#define EMM_STREAM 0xF1
+#define DSM_CC_STREAM 0xF2
+#define ISO13522_STREAM 0xF3
+#define PROG_STREAM_DIR 0xFF
+
+#define DVB_PICTURE_START 0x00
+#define DVB_USER_START 0xb2
+#define DVB_SEQUENCE_HEADER 0xb3
+#define DVB_SEQUENCE_ERROR 0xb4
+#define DVB_EXTENSION_START 0xb5
+#define DVB_SEQUENCE_END 0xb7
+#define DVB_GOP_START 0xb8
+#define DVB_EXCEPT_SLICE 0xb0
+
+#define SEQUENCE_EXTENSION 0x01
+#define SEQUENCE_DISPLAY_EXTENSION 0x02
+#define PICTURE_CODING_EXTENSION 0x08
+#define QUANT_MATRIX_EXTENSION 0x03
+#define PICTURE_DISPLAY_EXTENSION 0x07
+
+#define I_FRAME 0x01
+#define B_FRAME 0x02
+#define P_FRAME 0x03
+
+/* Initialize sequence_data */
+#define INIT_HORIZONTAL_SIZE 720
+#define INIT_VERTICAL_SIZE 576
+#define INIT_ASPECT_RATIO 0x02
+#define INIT_FRAME_RATE 0x03
+#define INIT_DISP_HORIZONTAL_SIZE 540
+#define INIT_DISP_VERTICAL_SIZE 576
+
+
+//flags2
+#define PTS_DTS_FLAGS 0xC0
+#define ESCR_FLAG 0x20
+#define ES_RATE_FLAG 0x10
+#define DSM_TRICK_FLAG 0x08
+#define ADD_CPY_FLAG 0x04
+#define PES_CRC_FLAG 0x02
+#define PES_EXT_FLAG 0x01
+
+//pts_dts flags
+#define PTS_ONLY 0x80
+#define PTS_DTS 0xC0
+
+#define TS_SIZE 188
+#define TRANS_ERROR 0x80
+#define PAY_START 0x40
+#define TRANS_PRIO 0x20
+#define PID_MASK_HI 0x1F
+//flags
+#define TRANS_SCRMBL1 0x80
+#define TRANS_SCRMBL2 0x40
+#define ADAPT_FIELD 0x20
+#define PAYLOAD 0x10
+#define COUNT_MASK 0x0F
+
+// adaptation flags
+#define DISCON_IND 0x80
+#define RAND_ACC_IND 0x40
+#define ES_PRI_IND 0x20
+#define PCR_FLAG 0x10
+#define OPCR_FLAG 0x08
+#define SPLICE_FLAG 0x04
+#define TRANS_PRIV 0x02
+#define ADAP_EXT_FLAG 0x01
+
+// adaptation extension flags
+#define LTW_FLAG 0x80
+#define PIECE_RATE 0x40
+#define SEAM_SPLICE 0x20
+
+
+#define MAX_PLENGTH 0xFFFF
+#define MMAX_PLENGTH (256*MAX_PLENGTH)
+
+#ifndef IPACKS
+#define IPACKS 2048
+#endif
+
+struct ipack {
+ int size;
+ int found;
+ u8 *buf;
+ u8 cid;
+ u32 plength;
+ u8 plen[2];
+ u8 flag1;
+ u8 flag2;
+ u8 hlength;
+ u8 pts[5];
+ u16 *pid;
+ int mpeg;
+ u8 check;
+ int which;
+ int done;
+ void *data;
+ void (*func)(u8 *buf, int size, void *priv);
+ int count;
+ int repack_subids;
+};
+
+struct dvb_video_info {
+ u32 horizontal_size;
+ u32 vertical_size;
+ u32 aspect_ratio;
+ u32 framerate;
+ u32 video_format;
+ u32 bit_rate;
+ u32 comp_bit_rate;
+ u32 vbv_buffer_size;
+ s16 vbv_delay;
+ u32 CSPF;
+ u32 off;
+};
+
+#define OFF_SIZE 4
+#define FIRST_FIELD 0
+#define SECOND_FIELD 1
+#define VIDEO_FRAME_PICTURE 0x03
+
+struct mpg_picture {
+ int channel;
+ struct dvb_video_info vinfo;
+ u32 *sequence_gop_header;
+ u32 *picture_header;
+ s32 time_code;
+ int low_delay;
+ int closed_gop;
+ int broken_link;
+ int sequence_header_flag;
+ int gop_flag;
+ int sequence_end_flag;
+
+ u8 profile_and_level;
+ s32 picture_coding_parameter;
+ u32 matrix[32];
+ s8 matrix_change_flag;
+
+ u8 picture_header_parameter;
+ /* bit 0 - 2: bwd f code
+ bit 3 : fpb vector
+ bit 4 - 6: fwd f code
+ bit 7 : fpf vector */
+
+ int mpeg1_flag;
+ int progressive_sequence;
+ int sequence_display_extension_flag;
+ u32 sequence_header_data;
+ s16 last_frame_centre_horizontal_offset;
+ s16 last_frame_centre_vertical_offset;
+
+ u32 pts[2]; /* [0] 1st field, [1] 2nd field */
+ int top_field_first;
+ int repeat_first_field;
+ int progressive_frame;
+ int bank;
+ int forward_bank;
+ int backward_bank;
+ int compress;
+ s16 frame_centre_horizontal_offset[OFF_SIZE];
+ /* [0-2] 1st field, [3] 2nd field */
+ s16 frame_centre_vertical_offset[OFF_SIZE];
+ /* [0-2] 1st field, [3] 2nd field */
+ s16 temporal_reference[2];
+ /* [0] 1st field, [1] 2nd field */
+
+ s8 picture_coding_type[2];
+ /* [0] 1st field, [1] 2nd field */
+ s8 picture_structure[2];
+ /* [0] 1st field, [1] 2nd field */
+ s8 picture_display_extension_flag[2];
+ /* [0] 1st field, [1] 2nd field */
+ /* picture_display_extenion() 0:no 1:exit*/
+ s8 pts_flag[2];
+ /* [0] 1st field, [1] 2nd field */
+};
+
+struct dvb_audio_info {
+ int layer;
+ u32 bit_rate;
+ u32 frequency;
+ u32 mode;
+ u32 mode_extension ;
+ u32 emphasis;
+ u32 framesize;
+ u32 off;
+};
+
+int dvb_filter_get_ac3info(u8 *mbuf, int count, struct dvb_audio_info *ai, int pr);
+
+
+#endif
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