* cc608.c : CC 608/708 subtitles decoder
*****************************************************************************
* Copyright (C) 2007 Laurent Aimar
- * $Id: subsdec.c 22151 2007-09-18 16:20:49Z courmisch $
+ * $Id$
*
* Authors: Laurent Aimar < fenrir # via.ecp.fr>
*
* 708 decoding
*/
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include <vlc_vout.h>
#include <vlc_codec.h>
#include <vlc_input.h>
#include <errno.h>
#include <string.h>
+#include <assert.h>
+
/*****************************************************************************
* Module descriptor.
*****************************************************************************/
static void Close( vlc_object_t * );
vlc_module_begin();
- set_shortname( _("CC 608/708"));
- set_description( _("Closed Captions decoder") );
+ set_shortname( N_("CC 608/708"));
+ set_description( N_("Closed Captions decoder") );
set_capability( "decoder", 50 );
set_callbacks( Open, Close );
vlc_module_end();
} eia608_t;
static void Eia608Init( eia608_t * );
-static vlc_bool_t Eia608Parse( eia608_t *h, int i_channel_selected, const uint8_t data[2] );
-static char *Eia608Text( eia608_t *h, vlc_bool_t b_html );
+static bool Eia608Parse( eia608_t *h, int i_channel_selected, const uint8_t data[2] );
+static char *Eia608Text( eia608_t *h, bool b_html );
static void Eia608Exit( eia608_t * );
/* It will be enough up to 63 B frames, which is far too high for
int i_block;
block_t *pp_block[CC_MAX_REORDER_SIZE];
- block_t *p_current;
int i_field;
int i_channel;
/* Allocate the memory needed to store the decoder's structure */
p_dec->p_sys = p_sys = malloc( sizeof( *p_sys ) );
if( p_sys == NULL )
- {
- msg_Err( p_dec, "out of memory" );
return VLC_ENOMEM;
- }
/* init of p_sys */
memset( p_sys, 0, sizeof( *p_sys ) );
p_sys->i_block = 0;
- p_sys->p_current = NULL;
p_sys->i_field = i_field;
p_sys->i_channel = i_channel;
static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
{
- decoder_sys_t *p_sys = p_dec->p_sys;
-
if( pp_block && *pp_block )
{
Push( p_dec, *pp_block );
for( ;; )
{
- block_t *p_block;
-
- p_block = p_sys->p_current;
- if( !p_block )
- p_block = Pop( p_dec );
+ block_t *p_block = Pop( p_dec );
if( !p_block )
break;
{
msg_Warn( p_dec, "can't get spu buffer" );
free( psz_subtitle );
- if( psz_html )
- free( psz_html );
+ free( psz_html );
return NULL;
}
- p_spu->b_pausable = VLC_TRUE;
+ p_spu->b_pausable = true;
/* Create a new subpicture region */
memset( &fmt, 0, sizeof(video_format_t) );
{
msg_Err( p_dec, "cannot allocate SPU region" );
free( psz_subtitle );
- if( psz_html )
- free( psz_html );
+ free( psz_html );
p_dec->pf_spu_buffer_del( p_dec, p_spu );
return NULL;
}
p_spu->i_start = i_pts;
p_spu->i_stop = i_pts + 10000000; /* 10s max */
- p_spu->b_ephemer = VLC_TRUE;
- p_spu->b_absolute = VLC_FALSE;
+ p_spu->b_ephemer = true;
+ p_spu->b_absolute = false;
return p_spu;
}
{
decoder_sys_t *p_sys = p_dec->p_sys;
const int64_t i_pts = p_block->i_pts;
- vlc_bool_t b_changed = VLC_FALSE;
-
- p_sys->p_current = p_block;
+ bool b_changed = false;
/* TODO do the real decoding here */
- while( p_block && p_block->i_buffer >= 3 )
+ while( p_block->i_buffer >= 3 )
{
if( p_block->p_buffer[0] == p_sys->i_field )
b_changed |= Eia608Parse( &p_sys->eia608, p_sys->i_channel, &p_block->p_buffer[1] );
p_block->i_buffer -= 3;
p_block->p_buffer += 3;
- if( p_block->i_buffer <= 0 )
- {
- block_Release( p_block );
- p_sys->p_current = p_block = NULL;
- }
}
+ if( p_block )
+ block_Release( p_block );
+
static int64_t i_last = 0;
if( b_changed )//&& i_pts - i_last > 100*1000 )
{
- char *psz_subtitle = Eia608Text( &p_sys->eia608, VLC_FALSE );
- char *psz_html = NULL;//Eia608Text( &p_sys->eia608, VLC_TRUE );
+ char *psz_subtitle = Eia608Text( &p_sys->eia608, false );
+ char *psz_html = NULL;//Eia608Text( &p_sys->eia608, true );
i_last = i_pts;
return Subtitle( p_dec, psz_subtitle, psz_html, i_pts );
}
if( x == 0 )
{
- screen->row_used[i_row] = VLC_FALSE;
+ screen->row_used[i_row] = false;
}
else
{
- screen->row_used[i_row] = VLC_FALSE;
+ screen->row_used[i_row] = false;
for( i = 0; i < x; i++ )
{
if( screen->characters[i_row][i] != ' ' ||
screen->colors[i_row][i] != EIA608_COLOR_DEFAULT ||
screen->fonts[i_row][i] != EIA608_FONT_REGULAR )
{
- screen->row_used[i_row] = VLC_TRUE;
+ screen->row_used[i_row] = true;
break;
}
}
}
}
-static void Eia608EraseScreen( eia608_t *h, vlc_bool_t b_displayed )
+static void Eia608EraseScreen( eia608_t *h, bool b_displayed )
{
Eia608ClearScreen( h, b_displayed ? h->i_screen : (1-h->i_screen) );
}
screen->characters[i_row][i_column] = c;
screen->colors[i_row][i_column] = h->color;
screen->fonts[i_row][i_column] = h->font;
- screen->row_used[i_row] = VLC_TRUE;
+ screen->row_used[i_row] = true;
Eia608Cursor( h, 1 );
}
static void Eia608Erase( eia608_t *h )
else if( d1 == 0x1d )
h->i_channel = 4;
}
-static vlc_bool_t Eia608ParseTextAttribute( eia608_t *h, uint8_t d2 )
+static bool Eia608ParseTextAttribute( eia608_t *h, uint8_t d2 )
{
const int i_index = d2 - 0x20;
assert( d2 >= 0x20 && d2 <= 0x2f );
h->font = pac2_attribs[i_index].i_font;
Eia608Cursor( h, 1 );
- return VLC_FALSE;
+ return false;
}
-static vlc_bool_t Eia608ParseSingle( eia608_t *h, const uint8_t dx )
+static bool Eia608ParseSingle( eia608_t *h, const uint8_t dx )
{
assert( dx >= 0x20 );
Eia608Write( h, dx );
- return VLC_TRUE;
+ return true;
}
-static vlc_bool_t Eia608ParseDouble( eia608_t *h, uint8_t d2 )
+static bool Eia608ParseDouble( eia608_t *h, uint8_t d2 )
{
assert( d2 >= 0x30 && d2 <= 0x3f );
Eia608Write( h, d2 + 0x50 ); /* We use charaters 0x80...0x8f */
- return VLC_TRUE;
+ return true;
}
-static vlc_bool_t Eia608ParseExtended( eia608_t *h, uint8_t d1, uint8_t d2 )
+static bool Eia608ParseExtended( eia608_t *h, uint8_t d1, uint8_t d2 )
{
assert( d2 >= 0x20 && d2 <= 0x3f );
assert( d1 == 0x12 || d1 == 0x13 );
* advanced one */
Eia608Cursor( h, -1 );
Eia608Write( h, d2 );
- return VLC_TRUE;
+ return true;
}
-static vlc_bool_t Eia608ParseCommand0x14( eia608_t *h, uint8_t d2 )
+static bool Eia608ParseCommand0x14( eia608_t *h, uint8_t d2 )
{
- vlc_bool_t b_changed = VLC_FALSE;
+ bool b_changed = false;
switch( d2 )
{
break;
case 0x21: /* Backspace */
Eia608Erase( h );
- b_changed = VLC_TRUE;
+ b_changed = true;
break;
case 0x22: /* Reserved */
case 0x23:
case 0x27: /* Rollup 4 */
if( h->mode == EIA608_MODE_POPUP || h->mode == EIA608_MODE_PAINTON )
{
- Eia608EraseScreen( h, VLC_TRUE );
- Eia608EraseScreen( h, VLC_FALSE );
- b_changed = VLC_TRUE;
+ Eia608EraseScreen( h, true );
+ Eia608EraseScreen( h, false );
+ b_changed = true;
}
if( d2 == 0x25 )
break;
case 0x2c: /* Erase displayed memory */
- Eia608EraseScreen( h, VLC_TRUE );
- b_changed = VLC_TRUE;
+ Eia608EraseScreen( h, true );
+ b_changed = true;
break;
case 0x2d: /* Carriage return */
Eia608RollUp(h);
- b_changed = VLC_TRUE;
+ b_changed = true;
break;
case 0x2e: /* Erase non displayed memory */
- Eia608EraseScreen( h, VLC_FALSE );
+ Eia608EraseScreen( h, false );
break;
case 0x2f: /* End of caption (flip screen if not paint on) */
if( h->mode != EIA608_MODE_PAINTON )
h->cursor.i_row = 0;
h->color = EIA608_COLOR_DEFAULT;
h->font = EIA608_FONT_REGULAR;
- b_changed = VLC_TRUE;
+ b_changed = true;
break;
}
return b_changed;
}
-static vlc_bool_t Eia608ParseCommand0x17( eia608_t *h, uint8_t d2 )
+static bool Eia608ParseCommand0x17( eia608_t *h, uint8_t d2 )
{
switch( d2 )
{
Eia608Cursor( h, 3 );
break;
}
- return VLC_FALSE;
+ return false;
}
-static vlc_bool_t Eia608ParsePac( eia608_t *h, uint8_t d1, uint8_t d2 )
+static bool Eia608ParsePac( eia608_t *h, uint8_t d1, uint8_t d2 )
{
static const int pi_row[] = {
11, -1, 1, 2, 3, 4, 12, 13, 14, 15, 5, 6, 7, 8, 9, 10
assert( d2 >= 0x40 && d2 <= 0x7f );
if( pi_row[i_row_index] <= 0 )
- return VLC_FALSE;
+ return false;
/* Row */
if( h->mode != EIA608_MODE_TEXT )
else if( d2 >= 0x40 )
d2 -= 0x40;
h->cursor.i_column = pac2_attribs[d2].i_column;
- return VLC_FALSE;
+ return false;
}
-static vlc_bool_t Eia608ParseData( eia608_t *h, uint8_t d1, uint8_t d2 )
+static bool Eia608ParseData( eia608_t *h, uint8_t d1, uint8_t d2 )
{
- vlc_bool_t b_changed = VLC_FALSE;
+ bool b_changed = false;
if( d1 >= 0x18 && d1 <= 0x1f )
d1 -= 8;
d[i_max-1] = '\0';
}
-static void Eia608TextLine( struct eia608_screen *screen, char *psz_text, int i_text_max, int i_row, vlc_bool_t b_html )
+static void Eia608TextLine( struct eia608_screen *screen, char *psz_text, int i_text_max, int i_row, bool b_html )
{
const uint8_t *p_char = screen->characters[i_row];
const eia608_color_t *p_color = screen->colors[i_row];
int i_end;
int x;
eia608_color_t last_color = EIA608_COLOR_DEFAULT;
- vlc_bool_t b_last_italics = VLC_FALSE;
- vlc_bool_t b_last_underline = VLC_FALSE;
+ bool b_last_italics = false;
+ bool b_last_underline = false;
/* Search the start */
i_start = 0;
for( x = i_start; x <= i_end; x++ )
{
eia608_color_t color = p_color[x];
- vlc_bool_t b_italics = p_font[x] & EIA608_FONT_ITALICS;
- vlc_bool_t b_underline = p_font[x] & EIA608_FONT_UNDERLINE;
+ bool b_italics = p_font[x] & EIA608_FONT_ITALICS;
+ bool b_underline = p_font[x] & EIA608_FONT_UNDERLINE;
char utf8[4];
/* */
if( b_html )
{
- vlc_bool_t b_close_color, b_close_italics, b_close_underline;
+ bool b_close_color, b_close_italics, b_close_underline;
/* We create the tags font / i / u in that orders */
b_close_color = color != last_color && last_color != EIA608_COLOR_DEFAULT;
h->font = EIA608_FONT_REGULAR;
h->i_row_rollup = EIA608_SCREEN_ROWS-1;
}
-static vlc_bool_t Eia608Parse( eia608_t *h, int i_channel_selected, const uint8_t data[2] )
+static bool Eia608Parse( eia608_t *h, int i_channel_selected, const uint8_t data[2] )
{
const uint8_t d1 = data[0] & 0x7f; /* Removed parity bit TODO we might want to check them */
const uint8_t d2 = data[1] & 0x7f;
- vlc_bool_t b_screen_changed = VLC_FALSE;
+ bool b_screen_changed = false;
if( d1 == 0 && d2 == 0 )
- return VLC_FALSE; /* Ignore padding */
+ return false; /* Ignore padding */
Eia608ParseChannel( h, d1 );
if( h->i_channel != i_channel_selected )
- return VLC_FALSE;
+ return false;
+ //fprintf( stderr, "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC %x %x\n", data[0], data[1] );
if( d1 >= 0x10 )
{
return b_screen_changed;
}
-static char *Eia608Text( eia608_t *h, vlc_bool_t b_html )
+static char *Eia608Text( eia608_t *h, bool b_html )
{
const int i_size = EIA608_SCREEN_ROWS * 3 * EIA608_SCREEN_COLUMNS+1;
struct eia608_screen *screen = &h->screen[h->i_screen];
- vlc_bool_t b_first = VLC_TRUE;
+ bool b_first = true;
char *psz;
int i;
/* We allocate a buffer big enough for normal case */
psz = malloc( i_size );
+ if( !psz )
+ return NULL;
*psz = '\0';
if( b_html )
Eia608Strlcat( psz, "<text>", i_size );
if( !b_first )
Eia608Strlcat( psz, b_html ? "<br />" : "\n", i_size );
- b_first = VLC_FALSE;
+ b_first = false;
Eia608TextLine( screen, psz, i_size, i, b_html );
}
projects / vlc / blobdiff