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Code Issues Releases Wiki Activity

Using masks in EIT filtering to reduce the number of filters

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This commit is contained in:
Klaus Schmidinger 2003-04-13 14:06:25 +02:00
parent da22081330
commit ed5027b5d5
5 changed files with 16 additions and 13 deletions
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1
CONTRIBUTORS
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@ -196,6 +196,7 @@ Andreas Schultz <aschultz@warp10.net>
for pointing out some unnecessary #includes in eit.c and a problem with
cMenuRecordings::Del(), which caused warnings with gcc-3.2
for suggesting a Make.config file
for making EIT filtering use masks to reduce the number of filters
Aaron Holtzman
for writing 'ac3dec'

5
HISTORY
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@ -2033,3 +2033,8 @@ Video Disk Recorder Revision History
applies to the RCU remote control in case of errors during startup.
- Fixed handling of Ca parameters with values <= MAXDEVICES, which don't indicate
an actual encrypted channel (thanks to Stefan Huelswitt for reporting this one).
2003-04-13: Version 1.1.28
- Using masks in EIT filtering to reduce the number of filters (thanks to Andreas
Schultz).

4
config.h
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: config.h 1.152 2003/04/12 09:35:50 kls Exp $
* $Id: config.h 1.153 2003/04/13 14:02:02 kls Exp $
*/
#ifndef __CONFIG_H
@ -19,7 +19,7 @@
#include "device.h"
#include "tools.h"
#define VDRVERSION "1.1.27"
#define VDRVERSION "1.1.28"
#define MAXPRIORITY 99
#define MAXLIFETIME 99

15
eit.c
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@ -16,7 +16,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: eit.c 1.68 2003/04/12 11:27:31 kls Exp $
* $Id: eit.c 1.69 2003/04/13 14:06:25 kls Exp $
***************************************************************************/
#include "eit.h"
@ -1176,12 +1176,9 @@ void cSIProcessor::SetStatus(bool On)
AddFilter(0x00, 0x00); // PAT
AddFilter(0x14, 0x70); // TDT
AddFilter(0x14, 0x73); // TOT
AddFilter(0x12, 0x4e); // event info, actual TS, present/following
AddFilter(0x12, 0x4f); // event info, other TS, present/following
AddFilter(0x12, 0x50); // event info, actual TS, schedule
AddFilter(0x12, 0x60); // event info, other TS, schedule
AddFilter(0x12, 0x51); // event info, actual TS, schedule for another 4 days
AddFilter(0x12, 0x61); // event info, other TS, schedule for another 4 days
AddFilter(0x12, 0x4e, 0xfe); // event info, actual(0x4e)/other(0x4f) TS, present/following
AddFilter(0x12, 0x50, 0xfe); // event info, actual TS, schedule(0x50)/schedule for another 4 days(0x51)
AddFilter(0x12, 0x60, 0xfe); // event info, other TS, schedule(0x60)/schedule for another 4 days(0x61)
}
}
@ -1351,7 +1348,7 @@ void cSIProcessor::Action()
/** Add a filter with packet identifier pid and
table identifer tid */
bool cSIProcessor::AddFilter(unsigned short pid, u_char tid)
bool cSIProcessor::AddFilter(unsigned short pid, u_char tid, u_char mask)
{
dmx_sct_filter_params sctFilterParams;
memset(&sctFilterParams, 0, sizeof(sctFilterParams));
@ -1359,7 +1356,7 @@ bool cSIProcessor::AddFilter(unsigned short pid, u_char tid)
sctFilterParams.timeout = 0;
sctFilterParams.flags = DMX_IMMEDIATE_START;
sctFilterParams.filter.filter[0] = tid;
sctFilterParams.filter.mask[0] = 0xFF;
sctFilterParams.filter.mask[0] = mask;
for (int a = 0; a < MAX_FILTERS; a++)
{

4
eit.h
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@ -16,7 +16,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: eit.h 1.25 2003/04/12 10:59:26 kls Exp $
* $Id: eit.h 1.26 2003/04/13 14:01:24 kls Exp $
***************************************************************************/
#ifndef __EIT_H
@ -155,7 +155,7 @@ private:
char *fileName;
bool active;
void Action(void);
bool AddFilter(unsigned short pid, u_char tid);
bool AddFilter(unsigned short pid, u_char tid, u_char mask = 0xFF);
bool DelFilter(unsigned short pid, u_char tid);
bool ShutDownFilters(void);
void NewCaDescriptor(struct Descriptor *d, int ProgramID);