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driver/genpsi.cpp: replace old code with class

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[CST] Focus
2012-11-08 15:08:08 +04:00
parent 01383e083d
commit 861a5a4a51
2 changed files with 133 additions and 128 deletions
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171
src/driver/genpsi.c → src/driver/genpsi.cpp
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@@ -1,10 +1,6 @@
/* /*
$Id: genpsi.c,v 1.2 2006/01/16 12:45:54 sat_man Exp $
Copyright (c) 2004 gmo18t, Germany. All rights reserved. Copyright (c) 2004 gmo18t, Germany. All rights reserved.
Copyright (C) 2012 CoolStream International Ltd
aktuelle Versionen gibt es hier:
$Source: /cvs/tuxbox/apps/tuxbox/neutrino/src/driver/genpsi.c,v $
This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published it under the terms of the GNU General Public License as published
@@ -22,7 +18,7 @@ $Id: genpsi.c,v 1.2 2006/01/16 12:45:54 sat_man Exp $
Mit diesem Programm koennen Neutrino TS Streams für das Abspielen unter Enigma gepatched werden Mit diesem Programm koennen Neutrino TS Streams für das Abspielen unter Enigma gepatched werden
*/ */
//#include <mpegtools/transform.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <driver/genpsi.h> #include <driver/genpsi.h>
@@ -40,17 +36,6 @@ $Id: genpsi.c,v 1.2 2006/01/16 12:45:54 sat_man Exp $
#define ES_TYPE_MPA 0x03 #define ES_TYPE_MPA 0x03
#define ES_TYPE_AC3 0x81 #define ES_TYPE_AC3 0x81
typedef struct
{
short nba;
uint16_t vpid;
uint8_t vtype;
uint16_t apid[10];
short isAC3[10];
} T_AV_PIDS;
T_AV_PIDS avPids;
static const uint32_t crc_table[256] = { static const uint32_t crc_table[256] = {
0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, 0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
@@ -97,49 +82,6 @@ static const uint32_t crc_table[256] = {
0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
}; };
uint32_t calc_crc32psi(uint8_t *dst, const uint8_t *src, uint32_t len)
{
uint32_t i;
uint32_t crc = 0xffffffff;
for (i=0; i<len; i++)
crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *src++) & 0xff];
if (dst)
{
dst[0] = (crc >> 24) & 0xff;
dst[1] = (crc >> 16) & 0xff;
dst[2] = (crc >> 8) & 0xff;
dst[3] = (crc) & 0xff;
}
return crc;
}
void transfer_pids(uint16_t pid,uint16_t pidart,short isAC3)
{
switch(pidart)
{
case EN_TYPE_VIDEO:
avPids.vpid=pid;
avPids.vtype = ES_TYPE_MPEG12;
break;
case EN_TYPE_AVC:
avPids.vpid=pid;
avPids.vtype = ES_TYPE_AVC;
break;
case EN_TYPE_AUDIO:
avPids.apid[avPids.nba]=pid;
avPids.isAC3[avPids.nba]=isAC3;
avPids.nba++;
break;
case EN_TYPE_TELTEX:
break;
default:
break;
}
}
//-- special enigma stream description packet for -- //-- special enigma stream description packet for --
//-- at least 1 video, 1 audo and 1 PCR-Pid stream -- //-- at least 1 video, 1 audo and 1 PCR-Pid stream --
//------------------------------------------------------------------------------------ //------------------------------------------------------------------------------------
@@ -177,13 +119,65 @@ static uint8_t pkt_pmt[] =
0x03, 0xE0, 0x00, 0xF0, 0x00 // (audio stream 1) 0x03, 0xE0, 0x00, 0xF0, 0x00 // (audio stream 1)
}; };
CGenPsi::CGenPsi()
{
nba = 0;
vpid = 0;
vtype = 0;
memset(apid, 0, sizeof(apid));
memset(atypes, 0, sizeof(atypes));
}
uint32_t CGenPsi::calc_crc32psi(uint8_t *dst, const uint8_t *src, uint32_t len)
{
uint32_t i;
uint32_t crc = 0xffffffff;
for (i=0; i<len; i++)
crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *src++) & 0xff];
if (dst)
{
dst[0] = (crc >> 24) & 0xff;
dst[1] = (crc >> 16) & 0xff;
dst[2] = (crc >> 8) & 0xff;
dst[3] = (crc) & 0xff;
}
return crc;
}
void CGenPsi::addPid(uint16_t pid, uint16_t pidtype, short isAC3)
{
switch(pidtype)
{
case EN_TYPE_VIDEO:
vpid=pid;
vtype = ES_TYPE_MPEG12;
break;
case EN_TYPE_AVC:
vpid=pid;
vtype = ES_TYPE_AVC;
break;
case EN_TYPE_AUDIO:
apid[nba]=pid;
atypes[nba]=isAC3;
nba++;
break;
case EN_TYPE_TELTEX:
break;
default:
break;
}
}
//== setup a new TS packet with format == //== setup a new TS packet with format ==
//== predefined with a template == //== predefined with a template ==
//======================================= //=======================================
#define COPY_TEMPLATE(dst, src) copy_template(dst, src, sizeof(src)) #define COPY_TEMPLATE(dst, src) copy_template(dst, src, sizeof(src))
static int copy_template(uint8_t *dst, uint8_t *src, int len) int CGenPsi::copy_template(uint8_t *dst, uint8_t *src, int len)
{ {
//-- reset buffer -- //-- reset buffer --
memset(dst, 0xFF, SIZE_TS_PKT); memset(dst, 0xFF, SIZE_TS_PKT);
@@ -192,9 +186,9 @@ static int copy_template(uint8_t *dst, uint8_t *src, int len)
return len; return len;
} }
int genpsi(int fd2)
int CGenPsi::genpsi(int fd)
{ {
// int bytes = 0;
uint8_t pkt[SIZE_TS_PKT]; uint8_t pkt[SIZE_TS_PKT];
int i, data_len, patch_len, ofs; int i, data_len, patch_len, ofs;
@@ -202,7 +196,7 @@ int genpsi(int fd2)
data_len = COPY_TEMPLATE(pkt, pkt_enigma); data_len = COPY_TEMPLATE(pkt, pkt_enigma);
//-- adjust len dependent to number of audio streams -- //-- adjust len dependent to number of audio streams --
data_len += ((SIZE_ENIGMA_TAB_ROW+1) * (avPids.nba-1)); data_len += ((SIZE_ENIGMA_TAB_ROW+1) * (nba-1));
patch_len = data_len - OFS_HDR_2 + 1; patch_len = data_len - OFS_HDR_2 + 1;
pkt[OFS_HDR_2+1] |= (patch_len>>8); pkt[OFS_HDR_2+1] |= (patch_len>>8);
@@ -211,73 +205,74 @@ int genpsi(int fd2)
ofs = OFS_ENIGMA_TAB; ofs = OFS_ENIGMA_TAB;
pkt[ofs] = EN_TYPE_VIDEO; pkt[ofs] = EN_TYPE_VIDEO;
pkt[ofs+1] = 0x02; pkt[ofs+1] = 0x02;
pkt[ofs+2] = (avPids.vpid>>8); pkt[ofs+2] = (vpid>>8);
pkt[ofs+3] = (avPids.vpid & 0xFF); pkt[ofs+3] = (vpid & 0xFF);
//-- for each audio stream, write row with desc. -- //-- for each audio stream, write row with desc. --
ofs += SIZE_ENIGMA_TAB_ROW; ofs += SIZE_ENIGMA_TAB_ROW;
for (i=0; i<avPids.nba; i++) for (i=0; i<nba; i++)
{ {
pkt[ofs] = EN_TYPE_AUDIO; pkt[ofs] = EN_TYPE_AUDIO;
pkt[ofs+1] = 0x03; pkt[ofs+1] = 0x03;
pkt[ofs+2] = (avPids.apid[i]>>8); pkt[ofs+2] = (apid[i]>>8);
pkt[ofs+3] = (avPids.apid[i] & 0xFF); pkt[ofs+3] = (apid[i] & 0xFF);
pkt[ofs+4] = (avPids.isAC3[i]==1)? 0x01 : 0x00; pkt[ofs+4] = (atypes[i]==1)? 0x01 : 0x00;
ofs += (SIZE_ENIGMA_TAB_ROW + 1); ofs += (SIZE_ENIGMA_TAB_ROW + 1);
} }
//-- write row with desc. for pcr stream (eq. video) -- //-- write row with desc. for pcr stream (eq. video) --
pkt[ofs] = EN_TYPE_PCR; pkt[ofs] = EN_TYPE_PCR;
pkt[ofs+1] = 0x02; pkt[ofs+1] = 0x02;
pkt[ofs+2] = (avPids.vpid>>8); pkt[ofs+2] = (vpid>>8);
pkt[ofs+3] = (avPids.vpid & 0xFF); pkt[ofs+3] = (vpid & 0xFF);
//-- calculate CRC -- //-- calculate CRC --
calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 ); calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
//-- write TS packet -- //-- write TS packet --
/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT); write(fd, pkt, SIZE_TS_PKT);
//-- (II) build PAT -- //-- (II) build PAT --
data_len = COPY_TEMPLATE(pkt, pkt_pat); data_len = COPY_TEMPLATE(pkt, pkt_pat);
//-- calculate CRC -- //-- calculate CRC --
calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 ); calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
//-- write TS packet -- //-- write TS packet --
/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT); write(fd, pkt, SIZE_TS_PKT);
//-- (III) build PMT -- //-- (III) build PMT --
data_len = COPY_TEMPLATE(pkt, pkt_pmt); data_len = COPY_TEMPLATE(pkt, pkt_pmt);
//-- adjust len dependent to count of audio streams -- //-- adjust len dependent to count of audio streams --
data_len += (SIZE_STREAM_TAB_ROW * (avPids.nba-1)); data_len += (SIZE_STREAM_TAB_ROW * (nba-1));
patch_len = data_len - OFS_HDR_2 + 1; patch_len = data_len - OFS_HDR_2 + 1;
pkt[OFS_HDR_2+1] |= (patch_len>>8); pkt[OFS_HDR_2+1] |= (patch_len>>8);
pkt[OFS_HDR_2+2] = (patch_len & 0xFF); pkt[OFS_HDR_2+2] = (patch_len & 0xFF);
//-- patch pcr PID -- //-- patch pcr PID --
ofs = OFS_PMT_DATA; ofs = OFS_PMT_DATA;
pkt[ofs] |= (avPids.vpid>>8); pkt[ofs] |= (vpid>>8);
pkt[ofs+1] = (avPids.vpid & 0xFF); pkt[ofs+1] = (vpid & 0xFF);
//-- write row with desc. for ES video stream -- //-- write row with desc. for ES video stream --
ofs = OFS_STREAM_TAB; ofs = OFS_STREAM_TAB;
pkt[ofs] = avPids.vtype; pkt[ofs] = vtype;
pkt[ofs+1] = 0xE0 | (avPids.vpid>>8); pkt[ofs+1] = 0xE0 | (vpid>>8);
pkt[ofs+2] = (avPids.vpid & 0xFF); pkt[ofs+2] = (vpid & 0xFF);
pkt[ofs+3] = 0xF0; pkt[ofs+3] = 0xF0;
pkt[ofs+4] = 0x00; pkt[ofs+4] = 0x00;
//-- for each ES audio stream, write row with desc. -- //-- for each ES audio stream, write row with desc. --
for (i=0; i<avPids.nba; i++) for (i=0; i<nba; i++)
{ {
ofs += SIZE_STREAM_TAB_ROW; ofs += SIZE_STREAM_TAB_ROW;
pkt[ofs] = (avPids.isAC3[i]==1)? ES_TYPE_AC3 : ES_TYPE_MPA; pkt[ofs] = (atypes[i]==1)? ES_TYPE_AC3 : ES_TYPE_MPA;
pkt[ofs+1] = 0xE0 | (avPids.apid[i]>>8); pkt[ofs+1] = 0xE0 | (apid[i]>>8);
pkt[ofs+2] = (avPids.apid[i] & 0xFF); pkt[ofs+2] = (apid[i] & 0xFF);
pkt[ofs+3] = 0xF0; pkt[ofs+3] = 0xF0;
pkt[ofs+4] = 0x00; pkt[ofs+4] = 0x00;
} }
//-- calculate CRC -- //-- calculate CRC --
calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 ); calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
//-- write TS packet -- //-- write TS packet --
/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT); write(fd, pkt, SIZE_TS_PKT);
//-- finish -- //-- finish --
avPids.vpid=0; vpid=0;
avPids.nba=0; nba=0;
fdatasync(fd2); fdatasync(fd);
return 1; return 1;
} }

24
src/driver/genpsi.h
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@@ -1,10 +1,7 @@
/* /*
$Id: genpsi.h,v 1.1 2005/08/15 14:47:52 metallica Exp $
Copyright (c) 2004 gmo18t, Germany. All rights reserved. Copyright (c) 2004 gmo18t, Germany. All rights reserved.
Copyright (C) 2012 CoolStream International Ltd
aktuelle Versionen gibt es hier:
$Source: /cvs/tuxbox/apps/tuxbox/neutrino/src/driver/genpsi.h,v $
This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published it under the terms of the GNU General Public License as published
@@ -26,13 +23,26 @@ $Id: genpsi.h,v 1.1 2005/08/15 14:47:52 metallica Exp $
#define __genpsi_h__ #define __genpsi_h__
#include <inttypes.h> #include <inttypes.h>
int genpsi(int fd2);
void transfer_pids(uint16_t pid,uint16_t pidart,short isAC3);
#define EN_TYPE_VIDEO 0x00 #define EN_TYPE_VIDEO 0x00
#define EN_TYPE_AUDIO 0x01 #define EN_TYPE_AUDIO 0x01
#define EN_TYPE_TELTEX 0x02 #define EN_TYPE_TELTEX 0x02
#define EN_TYPE_PCR 0x03 #define EN_TYPE_PCR 0x03
#define EN_TYPE_AVC 0x04 #define EN_TYPE_AVC 0x04
class CGenPsi
{
private:
short nba;
uint16_t vpid;
uint8_t vtype;
uint16_t apid[10];
short atypes[10];
static int copy_template(uint8_t *dst, uint8_t *src, int len);
uint32_t calc_crc32psi(uint8_t *dst, const uint8_t *src, uint32_t len);
public:
CGenPsi();
void addPid(uint16_t pid,uint16_t pidtype, short isAC3);
int genpsi(int fd);
};
#endif #endif