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Code Issues Releases Wiki Activity

Refactor section filter function names and defines.

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This commit is contained in:
Antti Seppälä
2007-10-05 21:52:16 +00:00
parent 2625930938
commit 2664394050
2 changed files with 48 additions and 55 deletions
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62
sectionfilter.c
View File

@@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: sectionfilter.c,v 1.8 2007/10/05 20:01:24 ajhseppa Exp $
* $Id: sectionfilter.c,v 1.9 2007/10/05 21:52:16 ajhseppa Exp $
*/
#include "sectionfilter.h"
@@ -39,12 +39,12 @@ cIptvSectionFilter::cIptvSectionFilter(int Index, int devInd,
filter_mask[0] = Mask;
// Invert the filter
for (int i = 0; i < DVB_DEMUX_MASK_MAX; ++i) {
for (int i = 0; i < DMX_MAX_FILTER_SIZE; ++i) {
filter_value[i] ^= 0xff;
}
uint8_t mask, mode, local_doneq = 0;
for (int i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
for (int i = 0; i < DMX_MAX_FILTER_SIZE; i++) {
mode = filter_mode[i];
mask = filter_mask[i];
maskandmode[i] = mask & mode;
@@ -94,9 +94,9 @@ inline uint16_t cIptvSectionFilter::section_length(const uint8_t *buf)
return 3 + ((buf[1] & 0x0f) << 8) + buf[2];
}
int cIptvSectionFilter::dvb_dmxdev_section_callback(const uint8_t *buffer1, size_t buffer1_len,
const uint8_t *buffer2, size_t buffer2_len,
enum dmx_success success)
int cIptvSectionFilter::dmxdev_section_callback(const uint8_t *buffer1, size_t buffer1_len,
const uint8_t *buffer2, size_t buffer2_len,
enum dmx_success success)
{
struct timeval tv;
tv.tv_sec = 0;
@@ -137,9 +137,9 @@ int cIptvSectionFilter::dvb_dmxdev_section_callback(const uint8_t *buffer1, size
void cIptvSectionFilter::dvb_dmx_swfilter_section_new()
void cIptvSectionFilter::demux_swfilter_section_new()
{
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
#ifdef DEMUX_SECTION_LOSS_LOG
if (secbufp < tsfeedp) {
int i, n = tsfeedp - secbufp;
/*
@@ -148,9 +148,9 @@ void cIptvSectionFilter::dvb_dmx_swfilter_section_new()
* but just first and last.
*/
if (secbuf[0] != 0xff || secbuf[n - 1] != 0xff) {
printf("dvb_demux.c section ts padding loss: %d/%d\n",
printf("sectionfilter.c section ts padding loss: %d/%d\n",
n, tsfeedp);
printf("dvb_demux.c pad data:");
printf("sectionfilter.c pad data:");
for (i = 0; i < n; i++)
printf(" %02x", secbuf[i]);
printf("\n");
@@ -161,12 +161,12 @@ void cIptvSectionFilter::dvb_dmx_swfilter_section_new()
secbuf = secbuf_base;
}
int cIptvSectionFilter::dvb_dmx_swfilter_sectionfilter()
int cIptvSectionFilter::demux_swfilter_sectionfilter()
{
uint8_t neq = 0;
int i;
for (i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
for (i = 0; i < DMX_MAX_FILTER_SIZE; i++) {
uint8_t local_xor = filter_value[i] ^ secbuf[i];
if (maskandmode[i] & local_xor) {
#ifdef DEBUG_PRINTF
@@ -183,18 +183,18 @@ int cIptvSectionFilter::dvb_dmx_swfilter_sectionfilter()
#endif
return 0;
}
return dvb_dmxdev_section_callback(secbuf, seclen, NULL, 0, DMX_OK);
return dmxdev_section_callback(secbuf, seclen, NULL, 0, DMX_OK);
}
inline int cIptvSectionFilter::dvb_dmx_swfilter_section_feed()
inline int cIptvSectionFilter::demux_swfilter_section_feed()
{
if (dvb_dmx_swfilter_sectionfilter() < 0)
if (demux_swfilter_sectionfilter() < 0)
return -1;
seclen = 0;
return 0;
}
int cIptvSectionFilter::dvb_dmx_swfilter_section_copy_dump(const uint8_t *buf, uint8_t len)
int cIptvSectionFilter::demux_swfilter_section_copy_dump(const uint8_t *buf, uint8_t len)
{
uint16_t limit, seclen_local, n;
@@ -202,8 +202,8 @@ int cIptvSectionFilter::dvb_dmx_swfilter_section_copy_dump(const uint8_t *buf, u
return 0;
if (tsfeedp + len > DMX_MAX_SECFEED_SIZE) {
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
printf("dvb_demux.c section buffer full loss: %d/%d\n",
#ifdef DEMUX_SECTION_LOSS_LOG
printf("sectionfilter.c section buffer full loss: %d/%d\n",
tsfeedp + len - DMX_MAX_SECFEED_SIZE,
DMX_MAX_SECFEED_SIZE);
#endif
@@ -238,10 +238,10 @@ int cIptvSectionFilter::dvb_dmx_swfilter_section_copy_dump(const uint8_t *buf, u
crc_val = ~0;
/* dump [secbuf .. secbuf+seclen) */
if (pusi_seen)
dvb_dmx_swfilter_section_feed();
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
demux_swfilter_section_feed();
#ifdef DEMUX_SECTION_LOSS_LOG
else
printf("dvb_demux.c pusi not seen, discarding section data\n");
printf("sectionfilter.c pusi not seen, discarding section data\n");
#endif
secbufp += seclen_local; /* secbufp and secbuf moving together is */
secbuf += seclen_local; /* redundant but saves pointer arithmetic */
@@ -279,12 +279,12 @@ void cIptvSectionFilter::ProcessData(const uint8_t* buf)
}
if (!ccok || dc_i) {
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
printf("dvb_demux.c discontinuity detected %d bytes lost\n",
#ifdef DEMUX_SECTION_LOSS_LOG
printf("sectionfilter.c discontinuity detected %d bytes lost\n",
count);
/*
* those bytes under sume circumstances will again be reported
* in the following dvb_dmx_swfilter_section_new
* in the following demux_swfilter_section_new
*/
#endif
/*
@@ -292,7 +292,7 @@ void cIptvSectionFilter::ProcessData(const uint8_t* buf)
* stop feeding of suspicious data until next PUSI=1 arrives
*/
pusi_seen = 0;
dvb_dmx_swfilter_section_new();
demux_swfilter_section_new();
}
if (buf[1] & 0x40) {
@@ -306,19 +306,19 @@ void cIptvSectionFilter::ProcessData(const uint8_t* buf)
const uint8_t *after = &before[before_len];
uint8_t after_len = count - 1 - before_len;
dvb_dmx_swfilter_section_copy_dump(before, before_len);
demux_swfilter_section_copy_dump(before, before_len);
/* before start of new section, set pusi_seen = 1 */
pusi_seen = 1;
dvb_dmx_swfilter_section_new();
dvb_dmx_swfilter_section_copy_dump(after, after_len);
demux_swfilter_section_new();
demux_swfilter_section_copy_dump(after, after_len);
}
#ifdef DVB_DEMUX_SECTION_LOSS_LOG
#ifdef DEMUX_SECTION_LOSS_LOG
else if (count > 0)
printf("dvb_demux.c PUSI=1 but %d bytes lost\n", count);
printf("sectionfilter.c PUSI=1 but %d bytes lost\n", count);
#endif
}
else {
/* PUSI=0 (is not set), no section boundary */
dvb_dmx_swfilter_section_copy_dump(&buf[p], count);
demux_swfilter_section_copy_dump(&buf[p], count);
}
}

41
sectionfilter.h
View File

@@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: sectionfilter.h,v 1.4 2007/10/05 20:01:24 ajhseppa Exp $
* $Id: sectionfilter.h,v 1.5 2007/10/05 21:52:16 ajhseppa Exp $
*/
#ifndef __IPTV_SECTIONFILTER_H
@@ -25,19 +25,6 @@
#include "common.h"
#include "statistics.h"
#ifndef DMX_MAX_FILTER_SIZE
#define DMX_MAX_FILTER_SIZE 18
#endif
#ifndef DMX_MAX_SECTION_SIZE
#define DMX_MAX_SECTION_SIZE 4096
#endif
#ifndef DMX_MAX_SECFEED_SIZE
#define DMX_MAX_SECFEED_SIZE (DMX_MAX_SECTION_SIZE + 188)
#endif
#define DVB_DEMUX_MASK_MAX 18
class cIptvSectionFilter : public cIptvSectionStatistics {
private:
enum dmx_success {
@@ -50,6 +37,12 @@ private:
DMX_MISSED_ERROR /* Receiver missed packet */
};
enum dmx_limits {
DMX_MAX_FILTER_SIZE = 18,
DMX_MAX_SECTION_SIZE = 4096,
DMX_MAX_SECFEED_SIZE = (DMX_MAX_SECTION_SIZE + 188)
};
int fifoDescriptor;
int readDescriptor;
@@ -78,20 +71,20 @@ private:
inline uint16_t section_length(const uint8_t *buf);
int dvb_dmxdev_section_callback(const uint8_t *buffer1,
size_t buffer1_len,
const uint8_t *buffer2,
size_t buffer2_len,
enum dmx_success success);
int dmxdev_section_callback(const uint8_t *buffer1,
size_t buffer1_len,
const uint8_t *buffer2,
size_t buffer2_len,
enum dmx_success success);
void dvb_dmx_swfilter_section_new();
void demux_swfilter_section_new();
int dvb_dmx_swfilter_sectionfilter();
int demux_swfilter_sectionfilter();
inline int dvb_dmx_swfilter_section_feed();
inline int demux_swfilter_section_feed();
int dvb_dmx_swfilter_section_copy_dump(const uint8_t *buf,
uint8_t len);
int demux_swfilter_section_copy_dump(const uint8_t *buf,
uint8_t len);
int GetFifoDesc();
void ClearPipeName();