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Commit a41a2c7b authored by Christophe Massiot's avatar Christophe Massiot
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* modules/codec/telx.c: Pedantic coding style changes.

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modules/codec/telx.c
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...@@ -31,14 +31,14 @@ ...@@ -31,14 +31,14 @@
#include <assert.h> #include <assert.h>
#include <stdint.h> #include <stdint.h>
// this is an ugly test so that this source compile for both 0.8.6 and current trunk version /* This is an ugly test so that this source compile for both 0.8.6 and current
// considere this hack to be temporary, but I need it so that I can maintain my patch * trunk version. Considere this hack to be temporary, but I need it so that
// for both current svn and 0.8.6 in an easy way. * I can maintain my patch for both current svn and 0.8.6 in an easy way. */
#ifdef VLC_ENOITEM #ifdef VLC_ENOITEM
// svn trunk /* svn trunk */
#include "vlc_vout.h" #include "vlc_vout.h"
#else #else
// 0.8.6 /* 0.8.6 */
#include <vlc/vout.h> #include <vlc/vout.h>
#include <vlc/decoder.h> #include <vlc/decoder.h>
#include <vlc/sout.h> #include <vlc/sout.h>
...@@ -52,22 +52,22 @@ ...@@ -52,22 +52,22 @@
#include "vlc_codec.h" #include "vlc_codec.h"
//#define TELX_DEBUG /* #define TELX_DEBUG */
#ifdef TELX_DEBUG #ifdef TELX_DEBUG
# define dbg( a ) msg_Dbg a # define dbg( a ) msg_Dbg a
#else #else
# define dbg( a ) # define dbg( a )
#endif #endif
/***************************************************************************** /*****************************************************************************
* Local prototypes * Local prototypes
*****************************************************************************/ *****************************************************************************/
static int telx_conf_cb ( vlc_object_t *, /* variable's object */ static int telx_conf_cb ( vlc_object_t *, /* variable's object */
char const *, /* variable name */ char const *, /* variable name */
vlc_value_t, /* old value */ vlc_value_t, /* old value */
vlc_value_t, /* new value */ vlc_value_t, /* new value */
void * ); /* callback data */ void * ); /* callback data */
/***************************************************************************** /*****************************************************************************
* Module descriptor. * Module descriptor.
...@@ -93,8 +93,8 @@ vlc_module_begin(); ...@@ -93,8 +93,8 @@ vlc_module_begin();
add_integer( "telx-page", 0, telx_conf_cb, PAGE_TEXT, PAGE_LONGTEXT, add_integer( "telx-page", 0, telx_conf_cb, PAGE_TEXT, PAGE_LONGTEXT,
VLC_FALSE ); VLC_FALSE );
add_bool( "telx-ignore-subtitle-flag", 0, telx_conf_cb, IGNORE_SUB_FLAG_TEXT, IGNORE_SUB_FLAG_LONGTEXT, add_bool( "telx-ignore-subtitle-flag", 0, telx_conf_cb,
VLC_TRUE ); IGNORE_SUB_FLAG_TEXT, IGNORE_SUB_FLAG_LONGTEXT, VLC_TRUE );
vlc_module_end(); vlc_module_end();
...@@ -105,71 +105,73 @@ vlc_module_end(); ...@@ -105,71 +105,73 @@ vlc_module_end();
struct decoder_sys_t struct decoder_sys_t
{ {
int i_align; int i_align;
int is_subtitle[9]; vlc_bool_t b_is_subtitle[9];
char lines[32][128]; char ppsz_lines[32][128];
char prev_text[512]; char psz_prev_text[512];
mtime_t prev_pts; mtime_t prev_pts;
int page; int i_page;
int erase[9]; vlc_bool_t b_erase[9];
uint16_t * active_national_set[9]; uint16_t * pi_active_national_set[9];
}; };
/**************************************************************************** /****************************************************************************
* Local data * Local data
****************************************************************************/ ****************************************************************************/
static int i_wanted_page = 0; // default 0 = all pages static int i_conf_wanted_page = 0; /* default 0 = all pages */
static vlc_bool_t b_ignore_sub_flag = 0; static vlc_bool_t b_ignore_sub_flag = 0;
// /*
// my doc only mentions 13 national characters, but experiments show there * My doc only mentions 13 national characters, but experiments show there
// are more, in france for example I already found two more (0x9 and 0xb) * are more, in france for example I already found two more (0x9 and 0xb).
// *
// convertion is in this order : * Conversion is in this order :
// *
// 0x23 0x24 0x40 0x5b 0x5c 0x5d 0x5e 0x5f 0x60 0x7b 0x7c 0x7d 0x7e (these are the standard ones) * 0x23 0x24 0x40 0x5b 0x5c 0x5d 0x5e 0x5f 0x60 0x7b 0x7c 0x7d 0x7e
// 0x08 0x09 0x0a 0x0b 0x0c 0x0d (apparently a control character) 0x0e 0x0f * (these are the standard ones)
// * 0x08 0x09 0x0a 0x0b 0x0c 0x0d (apparently a control character) 0x0e 0x0f
*/
static uint16_t national_subsets[][20] = {
static uint16_t ppi_national_subsets[][20] =
{
{ 0x00a3, 0x0024, 0x0040, 0x00ab, 0x00bd, 0x00bb, 0x005e, 0x0023, { 0x00a3, 0x0024, 0x0040, 0x00ab, 0x00bd, 0x00bb, 0x005e, 0x0023,
0x002d, 0x00bc, 0x00a6, 0x00be, 0x00f7 }, // english ,000 0x002d, 0x00bc, 0x00a6, 0x00be, 0x00f7 }, /* english ,000 */
{ 0x00e9, 0x00ef, 0x00e0, 0x00eb, 0x00ea, 0x00f9, 0x00ee, 0x0023, { 0x00e9, 0x00ef, 0x00e0, 0x00eb, 0x00ea, 0x00f9, 0x00ee, 0x0023,
0x00e8, 0x00e2, 0x00f4, 0x00fb, 0x00e7, 0, 0x00eb, 0, 0x00ef }, // french ,001 0x00e8, 0x00e2, 0x00f4, 0x00fb, 0x00e7, 0, 0x00eb, 0, 0x00ef }, /* french ,001 */
{ 0x0023, 0x00a4, 0x00c9, 0x00c4, 0x00d6, 0x00c5, 0x00dc, 0x005f, { 0x0023, 0x00a4, 0x00c9, 0x00c4, 0x00d6, 0x00c5, 0x00dc, 0x005f,
0x00e9, 0x00e4, 0x00f6, 0x00e5, 0x00fc }, // swedish,finnish,hungarian ,010 0x00e9, 0x00e4, 0x00f6, 0x00e5, 0x00fc }, /* swedish,finnish,hungarian ,010 */
{ 0x0023, 0x016f, 0x010d, 0x0165, 0x017e, 0x00fd, 0x00ed, 0x0159, { 0x0023, 0x016f, 0x010d, 0x0165, 0x017e, 0x00fd, 0x00ed, 0x0159,
0x00e9, 0x00e1, 0x0115, 0x00fa, 0x0161 }, // czech,slovak ,011 0x00e9, 0x00e1, 0x0115, 0x00fa, 0x0161 }, /* czech,slovak ,011 */
{ 0x0023, 0x0024, 0x00a7, 0x00c4, 0x00d6, 0x00dc, 0x005e, 0x005f, { 0x0023, 0x0024, 0x00a7, 0x00c4, 0x00d6, 0x00dc, 0x005e, 0x005f,
0x00b0, 0x00e4, 0x00f6, 0x00fc, 0x00df }, // german ,100 0x00b0, 0x00e4, 0x00f6, 0x00fc, 0x00df }, /* german ,100 */
{ 0x00e7, 0x0024, 0x00a1, 0x00e1, 0x00e9, 0x00ed, 0x00f3, 0x00fa, { 0x00e7, 0x0024, 0x00a1, 0x00e1, 0x00e9, 0x00ed, 0x00f3, 0x00fa,
0x00bf, 0x00fc, 0x00f1, 0x00e8, 0x00e0 }, // portuguese,spanish ,101 0x00bf, 0x00fc, 0x00f1, 0x00e8, 0x00e0 }, /* portuguese,spanish ,101 */
{ 0x00a3, 0x0024, 0x00e9, 0x00b0, 0x00e7, 0x00bb, 0x005e, 0x0023, { 0x00a3, 0x0024, 0x00e9, 0x00b0, 0x00e7, 0x00bb, 0x005e, 0x0023,
0x00f9, 0x00e0, 0x00f2, 0x00e8, 0x00ec }, // italian ,110 0x00f9, 0x00e0, 0x00f2, 0x00e8, 0x00ec }, /* italian ,110 */
{ 0x0023, 0x00a4, 0x0162, 0x00c2, 0x015e, 0x0102, 0x00ce, 0x0131, { 0x0023, 0x00a4, 0x0162, 0x00c2, 0x015e, 0x0102, 0x00ce, 0x0131,
0x0163, 0x00e2, 0x015f, 0x0103, 0x00ee }, // rumanian ,111 0x0163, 0x00e2, 0x015f, 0x0103, 0x00ee }, /* rumanian ,111 */
{ 0x0023, 0x0024, 0x0160, 0x0117, 0x0119, 0x017d, 0x010d, 0x016b, { 0x0023, 0x0024, 0x0160, 0x0117, 0x0119, 0x017d, 0x010d, 0x016b,
0x0161, 0x0105, 0x0173, 0x017e, 0x012f }, // lettish,lithuanian ,1000 0x0161, 0x0105, 0x0173, 0x017e, 0x012f }, /* lettish,lithuanian ,1000 */
{ 0x0023, 0x0144, 0x0105, 0x005a, 0x015a, 0x0141, 0x0107, 0x00f3, { 0x0023, 0x0144, 0x0105, 0x005a, 0x015a, 0x0141, 0x0107, 0x00f3,
0x0119, 0x017c, 0x015b, 0x0142, 0x017a }, // polish, 1001 0x0119, 0x017c, 0x015b, 0x0142, 0x017a }, /* polish, 1001 */
{ 0x0023, 0x00cb, 0x010c, 0x0106, 0x017d, 0x0110, 0x0160, 0x00eb, { 0x0023, 0x00cb, 0x010c, 0x0106, 0x017d, 0x0110, 0x0160, 0x00eb,
0x010d, 0x0107, 0x017e, 0x0111, 0x0161 }, // serbian,croatian,slovenian, 1010 0x010d, 0x0107, 0x017e, 0x0111, 0x0161 }, /* serbian,croatian,slovenian, 1010 */
{ 0x0023, 0x00f5, 0x0160, 0x00c4, 0x00d6, 0x017e, 0x00dc, 0x00d5, { 0x0023, 0x00f5, 0x0160, 0x00c4, 0x00d6, 0x017e, 0x00dc, 0x00d5,
0x0161, 0x00e4, 0x00f6, 0x017e, 0x00fc }, // estonian ,1011 0x0161, 0x00e4, 0x00f6, 0x017e, 0x00fc }, /* estonian ,1011 */
{ 0x0054, 0x011f, 0x0130, 0x015e, 0x00d6, 0x00c7, 0x00dc, 0x011e, { 0x0054, 0x011f, 0x0130, 0x015e, 0x00d6, 0x00c7, 0x00dc, 0x011e,
0x0131, 0x015f, 0x00f6, 0x00e7, 0x00fc }, // turkish ,1100 0x0131, 0x015f, 0x00f6, 0x00e7, 0x00fc }, /* turkish ,1100 */
}; };
...@@ -193,22 +195,24 @@ static int Open( vlc_object_t *p_this ) ...@@ -193,22 +195,24 @@ static int Open( vlc_object_t *p_this )
p_dec->pf_decode_sub = Decode; p_dec->pf_decode_sub = Decode;
p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) ); p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
if (p_sys == NULL) { if( p_sys == NULL )
msg_Err( p_dec, "out of memory" ); {
return VLC_ENOMEM; msg_Err( p_dec, "out of memory" );
return VLC_ENOMEM;
} }
memset( p_sys, 0, sizeof(decoder_sys_t) ); memset( p_sys, 0, sizeof(decoder_sys_t) );
p_sys->i_align = 0; p_sys->i_align = 0;
for (i=0; i<9; i++) for ( i = 0; i < 9; i++ )
p_sys->active_national_set[i] = national_subsets[1]; p_sys->pi_active_national_set[i] = ppi_national_subsets[1];
var_Create( p_dec, "telx-page", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_dec, "telx-page", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_dec, "telx-page", &val ); var_Get( p_dec, "telx-page", &val );
i_wanted_page = val.i_int; i_conf_wanted_page = val.i_int;
var_Create( p_dec, "telx-ignore-subtitle-flag", VLC_VAR_BOOL | VLC_VAR_DOINHERIT ); var_Create( p_dec, "telx-ignore-subtitle-flag",
VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
var_Get( p_dec, "telx-ignore-subtitle-flag", &val ); var_Get( p_dec, "telx-ignore-subtitle-flag", &val );
b_ignore_sub_flag = val.b_bool; b_ignore_sub_flag = val.b_bool;
...@@ -226,20 +230,23 @@ static int Open( vlc_object_t *p_this ) ...@@ -226,20 +230,23 @@ static int Open( vlc_object_t *p_this )
* Config callback * Config callback
*****************************************************************************/ *****************************************************************************/
static int telx_conf_cb ( vlc_object_t * obj, /* variable's object */ static int telx_conf_cb ( vlc_object_t * obj, /* variable's object */
char const * name, /* variable name */ char const * name, /* variable name */
vlc_value_t oldv, /* old value */ vlc_value_t oldv, /* old value */
vlc_value_t newv, /* new value */ vlc_value_t newv, /* new value */
void * data) /* callback data */ void * data) /* callback data */
{ {
if (!strcmp(name, "telx-page")) { if ( !strcmp(name, "telx-page") )
i_wanted_page = newv.i_int; {
dbg((obj, "display teletext page changed to %d\n", i_wanted_page)); i_conf_wanted_page = newv.i_int;
} else if (!strcmp(name, "telx-ignore-subtitle-flag")) { dbg((obj, "display teletext page changed to %d\n", i_conf_wanted_page));
b_ignore_sub_flag = newv.b_bool; }
dbg((obj, "ignore sub flag changed to %d\n", (int) b_ignore_sub_flag)); else if ( !strcmp(name, "telx-ignore-subtitle-flag") )
} {
b_ignore_sub_flag = newv.b_bool;
return 0; dbg((obj, "ignore sub flag changed to %d\n", (int) b_ignore_sub_flag));
}
return 0;
} }
...@@ -257,163 +264,177 @@ static void Close( vlc_object_t *p_this ) ...@@ -257,163 +264,177 @@ static void Close( vlc_object_t *p_this )
/************************** /**************************
* change bits endianness * * change bits endianness *
**************************/ **************************/
static uint8_t bytereverse(int n) static uint8_t bytereverse( int n )
{ {
n = (((n >> 1) & 0x55) | ((n << 1) & 0xaa)); n = (((n >> 1) & 0x55) | ((n << 1) & 0xaa));
n = (((n >> 2) & 0x33) | ((n << 2) & 0xcc)); n = (((n >> 2) & 0x33) | ((n << 2) & 0xcc));
n = (((n >> 4) & 0x0f) | ((n << 4) & 0xf0)); n = (((n >> 4) & 0x0f) | ((n << 4) & 0xf0));
return n; return n;
} }
static int hamming_8_4(int a) static int hamming_8_4( int a )
{ {
switch (a) { switch (a) {
case 0xA8: case 0xA8:
return 0; return 0;
case 0x0B: case 0x0B:
return 1; return 1;
case 0x26: case 0x26:
return 2; return 2;
case 0x85: case 0x85:
return 3; return 3;
case 0x92: case 0x92:
return 4; return 4;
case 0x31: case 0x31:
return 5; return 5;
case 0x1C: case 0x1C:
return 6; return 6;
case 0xBF: case 0xBF:
return 7; return 7;
case 0x40: case 0x40:
return 8; return 8;
case 0xE3: case 0xE3:
return 9; return 9;
case 0xCE: case 0xCE:
return 10; return 10;
case 0x6D: case 0x6D:
return 11; return 11;
case 0x7A: case 0x7A:
return 12; return 12;
case 0xD9: case 0xD9:
return 13; return 13;
case 0xF4: case 0xF4:
return 14; return 14;
case 0x57: case 0x57:
return 15; return 15;
default: default:
return -1; // decoding error , not yet corrected return -1; // decoding error , not yet corrected
} }
} }
// utc-2 --> utf-8 // utc-2 --> utf-8
// this is not a general function, but it's enough for what we do here // this is not a general function, but it's enough for what we do here
static void to_utf8(char * res, uint16_t ch) static void to_utf8( char * res, uint16_t ch )
{ {
if(ch>=0x80){ if( ch >= 0x80 )
if(ch>=0x800){ {
res[0]=(ch>>12)|0xE0; if( ch >= 0x800 )
res[1]=((ch>>6)&0x3F)|0x80; {
res[2]=(ch&0x3F)|0x80; res[0] = (ch >> 12) | 0xE0;
res[3]=0; res[1] = ((ch >> 6) & 0x3F) | 0x80;
} else { res[2] = (ch & 0x3F) | 0x80;
res[0]=(ch>>6)|0xC0; res[3] = 0;
res[1]=(ch&0x3F)|0x80; }
res[2]=0; else
{
res[0] = (ch >> 6) | 0xC0;
res[1] = (ch & 0x3F) | 0x80;
res[2] = 0;
}
}
else
{
res[0] = ch;
res[1] = 0;
} }
} else {
res[0]=ch;
res[1]=0;
}
} }
static void decode_string(char * res, int res_len, static void decode_string( char * res, int res_len,
decoder_sys_t *p_sys, int magazine, decoder_sys_t *p_sys, int magazine,
uint8_t * packet, int len) uint8_t * packet, int len )
{ {
char utf8[7]; char utf8[7];
char * pt = res; char * pt = res;
int i; int i;
for (i=0; i<len; i++) {
int in = bytereverse(packet[i])&0x7f;
uint16_t out = 32;
size_t l;
switch (in) { // special national characters
case 0x23:
out = p_sys->active_national_set[magazine][0];
break;
case 0x24:
out = p_sys->active_national_set[magazine][1];
break;
case 0x40:
out = p_sys->active_national_set[magazine][2];
break;
case 0x5b:
out = p_sys->active_national_set[magazine][3];
break;
case 0x5c:
out = p_sys->active_national_set[magazine][4];
break;
case 0x5d:
out = p_sys->active_national_set[magazine][5];
break;
case 0x5e:
out = p_sys->active_national_set[magazine][6];
break;
case 0x5f:
out = p_sys->active_national_set[magazine][7];
break;
case 0x60:
out = p_sys->active_national_set[magazine][8];
break;
case 0x7b:
out = p_sys->active_national_set[magazine][9];
break;
case 0x7c:
out = p_sys->active_national_set[magazine][10];
break;
case 0x7d:
out = p_sys->active_national_set[magazine][11];
break;
case 0x7e:
out = p_sys->active_national_set[magazine][12];
break;
// some special control characters (empirical)
case 0x0d:
// apparently this starts a sequence that ends with 0xb 0xb
while (i+1<len && (bytereverse(packet[i+1])&0x7f) != 0x0b) i++;
i += 2;
break;
//goto skip;
default:
// non documented national range 0x08 - 0x0f
if (in >= 0x08 && in <= 0x0f) {
out = p_sys->active_national_set[magazine][13 + in - 8];
break;
}
// normal ascii
if (in > 32 && in < 0x7f)
out = in;
}
// handle undefined national characters for ( i = 0; i < len; i++ )
if (out == 0) out = 32; {
int in = bytereverse( packet[i] ) & 0x7f;
// convert to utf-8 uint16_t out = 32;
to_utf8(utf8, out); size_t l;
l = strlen(utf8);
if (pt + l < res + res_len - 1) { switch ( in )
strcpy(pt, utf8); {
pt += l; /* special national characters */
case 0x23:
out = p_sys->pi_active_national_set[magazine][0];
break;
case 0x24:
out = p_sys->pi_active_national_set[magazine][1];
break;
case 0x40:
out = p_sys->pi_active_national_set[magazine][2];
break;
case 0x5b:
out = p_sys->pi_active_national_set[magazine][3];
break;
case 0x5c:
out = p_sys->pi_active_national_set[magazine][4];
break;
case 0x5d:
out = p_sys->pi_active_national_set[magazine][5];
break;
case 0x5e:
out = p_sys->pi_active_national_set[magazine][6];
break;
case 0x5f:
out = p_sys->pi_active_national_set[magazine][7];
break;
case 0x60:
out = p_sys->pi_active_national_set[magazine][8];
break;
case 0x7b:
out = p_sys->pi_active_national_set[magazine][9];
break;
case 0x7c:
out = p_sys->pi_active_national_set[magazine][10];
break;
case 0x7d:
out = p_sys->pi_active_national_set[magazine][11];
break;
case 0x7e:
out = p_sys->pi_active_national_set[magazine][12];
break;
/* some special control characters (empirical) */
case 0x0d:
/* apparently this starts a sequence that ends with 0xb 0xb */
while ( i + 1 < len && (bytereverse( packet[i+1] ) & 0x7f) != 0x0b )
i++;
i += 2;
break;
/* goto skip; */
default:
/* non documented national range 0x08 - 0x0f */
if ( in >= 0x08 && in <= 0x0f )
{
out = p_sys->pi_active_national_set[magazine][13 + in - 8];
break;
}
/* normal ascii */
if ( in > 32 && in < 0x7f )
out = in;
}
/* handle undefined national characters */
if ( out == 0 )
out = 32;
/* convert to utf-8 */
to_utf8( utf8, out );
l = strlen( utf8 );
if ( pt + l < res + res_len - 1 )
{
strcpy(pt, utf8);
pt += l;
}
/* skip: ; */
} }
/* end: */
//skip: ; *pt++ = 0;
}
//end:
*pt++ = 0;
} }
/***************************************************************************** /*****************************************************************************
...@@ -425,14 +446,14 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) ...@@ -425,14 +446,14 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
block_t *p_block; block_t *p_block;
subpicture_t *p_spu = NULL; subpicture_t *p_spu = NULL;
video_format_t fmt; video_format_t fmt;
int error = 1; /* int erase = 0; */
//int erase = 0;
int len, offset; int len, offset;
int wanted_magazine = i_wanted_page/100; int i_wanted_magazine = i_conf_wanted_page / 100;
int wanted_page = 0x10*((i_wanted_page%100)/10) | (i_wanted_page%10); int i_wanted_page = 0x10 * ((i_conf_wanted_page % 100) / 10)
int update = 0; | (i_conf_wanted_page % 10);
char text[512], * pt = text; vlc_bool_t b_update = VLC_FALSE;
char line[256]; char psz_text[512], *pt = psz_text;
char psz_line[256];
int i, total; int i, total;
if( pp_block == NULL || *pp_block == NULL ) return NULL; if( pp_block == NULL || *pp_block == NULL ) return NULL;
...@@ -440,182 +461,222 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) ...@@ -440,182 +461,222 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
*pp_block = NULL; *pp_block = NULL;
len = p_block->i_buffer; len = p_block->i_buffer;
for (offset = 1; offset+46 <= len ; offset += 46) { for ( offset = 1; offset + 46 <= len; offset += 46 )
uint8_t * packet = (uint8_t *) p_block->p_buffer+offset; {
uint8_t * packet = (uint8_t *) p_block->p_buffer+offset;
//dbg((p_dec, "header %02x %02x %02x\n", packet[0], packet[1], packet[2])); /* dbg((p_dec, "header %02x %02x %02x\n", packet[0], packet[1], packet[2])); */
/* if (packet[1] != 0x2C) { */ /* if (packet[1] != 0x2C) { */
/* printf("wrong header\n"); */ /* printf("wrong header\n"); */
/* //goto error; */ /* //goto error; */
/* continue; */ /* continue; */
/* } */ /* } */
int mpag = (hamming_8_4(packet[4]))<<4 | hamming_8_4(packet[5]); int mpag = (hamming_8_4( packet[4] ) << 4) | hamming_8_4( packet[5] );
int row, magazine; int row, magazine;
if (mpag < 0) { // decode error if ( mpag < 0 )
dbg((p_dec, "mpag hamming error\n")); {
continue; /* decode error */
} dbg((p_dec, "mpag hamming error\n"));
continue;
row = 0xFF & bytereverse(mpag); }
magazine = (7 & row) == 0 ? 8 : (7 & row);
row >>= 3; row = 0xFF & bytereverse(mpag);
magazine = (7 & row) == 0 ? 8 : (7 & row);
if (i_wanted_page && magazine != wanted_magazine) continue; row >>= 3;
if (row == 0) { if ( i_conf_wanted_page && magazine != i_wanted_magazine ) continue;
// row 0 : flags and header line
int flag = 0; if ( row == 0 )
int a; {
char * t = NULL; /* row 0 : flags and header line */
int flag = 0;
for (a = 0; a < 6; a++) int a;
flag |= (0xF & bytereverse(hamming_8_4(packet[8+a]) )>>4 ) <<(a*4); char *t = NULL;
dbg((p_dec, "mag %d flags %x page %x character set %d subtitles %d\n%s\n", magazine, flag, for ( a = 0; a < 6; a++ )
//p_sys->page, {
(0xF0 & bytereverse(hamming_8_4(packet[7]) )) | flag |= (0xF & (bytereverse( hamming_8_4(packet[8 + a]) ) >> 4))
(0xF & bytereverse(hamming_8_4(packet[6]) )>>4 ), << (a * 4);
7 & flag>>21, 1 & flag>>15, t)); }
/* if (!b_ignore_sub_flag && !(1 & flag>>15)) */ dbg((p_dec, "mag %d flags %x page %x character set %d subtitles %d\n%s\n", magazine, flag,
/* continue; */ //p_sys->i_page,
(0xF0 & bytereverse(hamming_8_4(packet[7]) )) |
p_sys->page = (0xF0 & bytereverse(hamming_8_4(packet[7]) )) | (0xF & bytereverse(hamming_8_4(packet[6]) )>>4 ),
(0xF & bytereverse(hamming_8_4(packet[6]) )>>4 ); 7 & flag>>21, 1 & flag>>15, t));
decode_string(line, sizeof(line), p_sys, magazine, packet+14, 40-14); /* if (!b_ignore_sub_flag && !(1 & flag>>15)) */
/* continue; */
p_sys->active_national_set[magazine] = national_subsets[7 & flag>>21];
p_sys->i_page = (0xF0 & bytereverse( hamming_8_4(packet[7]) )) |
p_sys->is_subtitle[magazine] = b_ignore_sub_flag || (1 & flag>>15); (0xF & (bytereverse( hamming_8_4(packet[6]) ) >> 4) );
if ((i_wanted_page && p_sys->page != wanted_page) || !p_sys->is_subtitle[magazine]) decode_string( psz_line, sizeof(psz_line), p_sys, magazine,
continue; packet + 14, 40 - 14 );
p_sys->erase[magazine] = (1 & flag>>7); p_sys->pi_active_national_set[magazine] =
ppi_national_subsets[7 & (flag >> 21)];
dbg((p_dec, "%ld --> %ld\n", (long int) p_block->i_pts, (long int)(p_sys->prev_pts+1500000)));
// kludge here : p_sys->b_is_subtitle[magazine] = b_ignore_sub_flag
// we ignore the erase flag if it happens less than 1.5 secondes before last caption || (1 & (flag >> 15));
// TODO make this time configurable
if (p_block->i_pts > p_sys->prev_pts + 1500000 && if ( (i_conf_wanted_page && p_sys->i_page != i_wanted_page)
p_sys->erase[magazine]) { || !p_sys->b_is_subtitle[magazine] )
int i; continue;
dbg((p_dec, "ERASE !\n")); p_sys->b_erase[magazine] = (1 & (flag >> 7));
p_sys->erase[magazine] = 0; dbg((p_dec, "%ld --> %ld\n", (long int) p_block->i_pts, (long int)(p_sys->prev_pts+1500000)));
for (i=1; i<32; i++) { /* kludge here :
if (!p_sys->lines[i][0]) continue; * we ignore the erase flag if it happens less than 1.5 seconds
//update = 1; * before last caption
p_sys->lines[i][0] = 0; *TODO make this time configurable */
} if ( p_block->i_pts > p_sys->prev_pts + 1500000 &&
} p_sys->b_erase[magazine] )
{
// replace the row if it's different int i;
if (strcmp(line, p_sys->lines[row])) {
strncpy(p_sys->lines[row], line, sizeof(p_sys->lines[row])-1); dbg((p_dec, "ERASE !\n"));
}
update = 1; p_sys->b_erase[magazine] = 0;
for ( i = 1; i < 32; i++ )
} else if (row < 24) { {
char * t; if ( !p_sys->ppsz_lines[i][0] ) continue;
int i; /* b_update = VLC_TRUE; */
// row 1-23 : normal lines p_sys->ppsz_lines[i][0] = 0;
}
if ((i_wanted_page && p_sys->page != wanted_page) || !p_sys->is_subtitle[magazine]) }
continue;
/* replace the row if it's different */
decode_string(line, sizeof(line), p_sys, magazine, packet+6, 40); if ( strcmp(psz_line, p_sys->ppsz_lines[row]) )
t = line; {
// remove starting spaces strncpy( p_sys->ppsz_lines[row], psz_line,
while (*t == 32) t++; sizeof(p_sys->ppsz_lines[row]) - 1);
// remove trailing spaces }
for (i=strlen(t)-1; i>=0 && t[i] == 32; i--); b_update = VLC_TRUE;
t[i+1] = 0;
}
// replace the row if it's different else if ( row < 24 )
if (strcmp(t, p_sys->lines[row])) { {
strncpy(p_sys->lines[row], t, sizeof(p_sys->lines[row])-1); char * t;
update = 1; int i;
} /* row 1-23 : normal lines */
if (t[0]) if ( (i_conf_wanted_page && p_sys->i_page != i_wanted_page)
p_sys->prev_pts = p_block->i_pts; || !p_sys->b_is_subtitle[magazine] )
continue;
dbg((p_dec, "%d %d : ", magazine, row));
dbg((p_dec, "%s\n", t)); decode_string( psz_line, sizeof(psz_line), p_sys, magazine,
packet + 6, 40 );
t = psz_line;
/* remove starting spaces */
while ( *t == 32 ) t++;
/* remove trailing spaces */
for ( i = strlen(t) - 1; i >= 0 && t[i] == 32; i-- );
t[i + 1] = 0;
/* replace the row if it's different */
if ( strcmp( t, p_sys->ppsz_lines[row] ) )
{
strncpy( p_sys->ppsz_lines[row], t,
sizeof(p_sys->ppsz_lines[row]) - 1 );
b_update = VLC_TRUE;
}
if (t[0])
p_sys->prev_pts = p_block->i_pts;
dbg((p_dec, "%d %d : ", magazine, row));
dbg((p_dec, "%s\n", t));
#ifdef TELX_DEBUG #ifdef TELX_DEBUG
{ {
char dbg[256]; char dbg[256];
dbg[0] = 0; dbg[0] = 0;
for (i=0; i<40; i++) { for ( i = 0; i < 40; i++ )
int in = bytereverse(packet[6+i]) & 0x7f; {
sprintf(dbg+strlen(dbg), "%02x ", in); int in = bytereverse(packet[6 + i]) & 0x7f;
} sprintf(dbg + strlen(dbg), "%02x ", in);
dbg((p_dec, "%s\n", dbg)); }
dbg[0] = 0; dbg((p_dec, "%s\n", dbg));
for (i=0; i<40; i++) { dbg[0] = 0;
decode_string(line, sizeof(line), p_sys, magazine, packet+6+i, 1); for ( i = 0; i < 40; i++ )
sprintf(dbg+strlen(dbg), "%s ", line); {
} decode_string( psz_line, sizeof(psz_line), p_sys, magazine,
dbg((p_dec, "%s\n", dbg)); packet + 6 + i, 1 );
} sprintf( dbg + strlen(dbg), "%s ", psz_line );
}
dbg((p_dec, "%s\n", dbg));
}
#endif #endif
} else if (row == 25) { }
// row 25 : alternate header line else if ( row == 25 )
if ((i_wanted_page && p_sys->page != wanted_page) || !p_sys->is_subtitle[magazine]) {
continue; /* row 25 : alternate header line */
if ( (i_conf_wanted_page && p_sys->i_page != i_wanted_page)
decode_string(line, sizeof(line), p_sys, magazine, packet+6, 40); || !p_sys->b_is_subtitle[magazine] )
// replace the row if it's different continue;
if (strcmp(line, p_sys->lines[0])) {
strncpy(p_sys->lines[0], line, sizeof(p_sys->lines[0])-1); decode_string( psz_line, sizeof(psz_line), p_sys, magazine,
//update = 1; packet + 6, 40 );
}
} /* replace the row if it's different */
if ( strcmp( psz_line, p_sys->ppsz_lines[0] ) )
{
strncpy( p_sys->ppsz_lines[0], psz_line,
sizeof(p_sys->ppsz_lines[0]) - 1 );
/* b_update = VLC_TRUE; */
}
}
/* else if (row == 26) { */ /* else if (row == 26) { */
/* // row 26 : TV listings */ /* // row 26 : TV listings */
/* } else */ /* } else */
/* dbg((p_dec, "%d %d : %s\n", magazine, row, decode_string(p_sys, magazine, packet+6, 40))); */ /* dbg((p_dec, "%d %d : %s\n", magazine, row, decode_string(p_sys, magazine, packet+6, 40))); */
} }
if (!update) if ( !b_update )
goto error; goto error;
total = 0; total = 0;
for (i=1; i<24; i++) { for ( i = 1; i < 24; i++ )
size_t l = strlen(p_sys->lines[i]); {
if (l > sizeof(text)-total-1) size_t l = strlen( p_sys->ppsz_lines[i] );
l = sizeof(text)-total-1;
if (l > 0) { if ( l > sizeof(psz_text) - total - 1 )
memcpy(pt, p_sys->lines[i], l); l = sizeof(psz_text) - total - 1;
total += l;
pt += l; if ( l > 0 )
if (sizeof(text)-total-1 > 0) { {
*pt++ = '\n'; memcpy( pt, p_sys->ppsz_lines[i], l );
total++; total += l;
} pt += l;
} if ( sizeof(psz_text) - total - 1 > 0 )
{
*pt++ = '\n';
total++;
}
}
} }
*pt = 0; *pt = 0;
if (!strcmp(text, p_sys->prev_text)) if ( !strcmp(psz_text, p_sys->psz_prev_text) )
goto error; goto error;
dbg((p_dec, "UPDATE TELETEXT PICTURE\n")); dbg((p_dec, "UPDATE TELETEXT PICTURE\n"));
assert(sizeof(p_sys->prev_text)>=sizeof(text)); assert( sizeof(p_sys->psz_prev_text) >= sizeof(psz_text) );
strcpy(p_sys->prev_text, text); strcpy( p_sys->psz_prev_text, psz_text );
/* Create the subpicture unit */ /* Create the subpicture unit */
p_spu = p_dec->pf_spu_buffer_new( p_dec ); p_spu = p_dec->pf_spu_buffer_new( p_dec );
if( !p_spu ) { if( !p_spu )
msg_Warn( p_dec, "can't get spu buffer" ); {
goto error; msg_Warn( p_dec, "can't get spu buffer" );
goto error;
} }
p_spu->b_pausable = VLC_TRUE; p_spu->b_pausable = VLC_TRUE;
...@@ -627,9 +688,10 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) ...@@ -627,9 +688,10 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
fmt.i_width = fmt.i_height = 0; fmt.i_width = fmt.i_height = 0;
fmt.i_x_offset = fmt.i_y_offset = 0; fmt.i_x_offset = fmt.i_y_offset = 0;
p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt ); p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
if( !p_spu->p_region ) { if( p_spu->p_region == NULL )
msg_Err( p_dec, "cannot allocate SPU region" ); {
goto error; msg_Err( p_dec, "cannot allocate SPU region" );
goto error;
} }
/* Normal text subs, easy markup */ /* Normal text subs, easy markup */
...@@ -637,23 +699,24 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) ...@@ -637,23 +699,24 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
p_spu->i_x = p_sys->i_align ? 20 : 0; p_spu->i_x = p_sys->i_align ? 20 : 0;
p_spu->i_y = 10; p_spu->i_y = 10;
p_spu->p_region->psz_text = strdup(text); p_spu->p_region->psz_text = strdup(psz_text);
p_spu->i_start = p_block->i_pts; p_spu->i_start = p_block->i_pts;
p_spu->i_stop = p_block->i_pts + p_block->i_length; p_spu->i_stop = p_block->i_pts + p_block->i_length;
p_spu->b_ephemer = (p_block->i_length == 0); p_spu->b_ephemer = (p_block->i_length == 0);
p_spu->b_absolute = VLC_FALSE; p_spu->b_absolute = VLC_FALSE;
dbg((p_dec, "%ld --> %ld\n", (long int) p_block->i_pts/100000, (long int)p_block->i_length/100000)); dbg((p_dec, "%ld --> %ld\n", (long int) p_block->i_pts/100000, (long int)p_block->i_length/100000));
error = 0; block_Release( p_block );
return p_spu;
error: error:
if (error && p_spu) { if ( p_spu != NULL )
p_dec->pf_spu_buffer_del( p_dec, p_spu ); {
p_spu = NULL; p_dec->pf_spu_buffer_del( p_dec, p_spu );
p_spu = NULL;
} }
block_Release( p_block ); block_Release( p_block );
return NULL;
return p_spu;
} }
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