* Authors: Derk-Jan Hartman <djhartman at m2x dot nl>
* Jean-Paul Saman <jpsaman at m2x dot nl>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
+
/*****************************************************************************
*
* information on teletext format can be found here :
# include "config.h"
#endif
+#include <ctype.h>
+
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <assert.h>
#include <libzvbi.h>
-#include <vlc_vout.h>
#include <vlc_codec.h>
-#include <vlc_osd.h>
+#include "substext.h"
/*****************************************************************************
* Module descriptor.
#define PAGE_LONGTEXT N_("Open the indicated Teletext page." \
"Default page is index 100")
-#define OPAQUE_TEXT N_("Text is always opaque")
-#define OPAQUE_LONGTEXT N_("Setting vbi-opaque to false " \
- "makes the boxed text transparent." )
+#define OPAQUE_TEXT N_("Teletext transparency")
+#define OPAQUE_LONGTEXT N_("Setting vbi-opaque to true " \
+ "makes the text to be boxed and maybe easier to read." )
#define POS_TEXT N_("Teletext alignment")
#define POS_LONGTEXT N_( \
set_subcategory( SUBCAT_INPUT_SCODEC )
set_callbacks( Open, Close )
- add_integer( "vbi-page", 100, NULL,
+ add_integer( "vbi-page", 100,
PAGE_TEXT, PAGE_LONGTEXT, false )
- add_bool( "vbi-opaque", true, NULL,
+ add_bool( "vbi-opaque", false,
OPAQUE_TEXT, OPAQUE_LONGTEXT, false )
- add_integer( "vbi-position", 4, NULL, POS_TEXT, POS_LONGTEXT, false )
- change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL );
- add_bool( "vbi-text", false, NULL,
+ add_integer( "vbi-position", 8, POS_TEXT, POS_LONGTEXT, false )
+ change_integer_list( pi_pos_values, ppsz_pos_descriptions );
+ add_bool( "vbi-text", false,
TELX_TEXT, TELX_LONGTEXT, false )
vlc_module_end ()
//Guessing table for missing "default region triplet"
static const int pi_default_triplet[] = {
- 0, 0, // slo cze
+ 0, 0, 0, 0, // slo slk cze ces
8, // pol
- 24,24,24,24, //ssc scr slv rum
+ 24,24,24,24,24, //scc scr srp hrv slv
+ 24,24, //rum ron
32,32,32,32,32, //est lit rus bul ukr
48,48, //gre ell
64, //ara
88, //heb
16 }; //default
static const char *const ppsz_default_triplet[] = {
- "slo", "cze",
+ "slo", "slk", "cze", "ces",
"pol",
- "ssc", "scr", "slv", "rum",
+ "scc", "scr", "srp", "hrv", "slv",
+ "rum", "ron",
"est", "lit", "rus", "bul", "ukr",
"gre", "ell",
"ara",
ZVBI_KEY_INDEX = 'i' << 16,
} ttxt_key_id;
-typedef enum {
- DATA_UNIT_EBU_TELETEXT_NON_SUBTITLE = 0x02,
- DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03,
- DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0C,
-
- DATA_UNIT_ZVBI_WSS_CPR1204 = 0xB4,
- DATA_UNIT_ZVBI_CLOSED_CAPTION_525 = 0xB5,
- DATA_UNIT_ZVBI_MONOCHROME_SAMPLES_525 = 0xB6,
-
- DATA_UNIT_VPS = 0xC3,
- DATA_UNIT_WSS = 0xC4,
- DATA_UNIT_CLOSED_CAPTION = 0xC5,
- DATA_UNIT_MONOCHROME_SAMPLES = 0xC6,
-
- DATA_UNIT_STUFFING = 0xFF,
-} data_unit_id;
+#define MAX_SLICES 32
struct decoder_sys_t
{
vbi_decoder * p_vbi_dec;
- vbi_dvb_demux * p_dvb_demux;
+ vbi_sliced p_vbi_sliced[MAX_SLICES];
unsigned int i_last_page;
bool b_update;
bool b_text; /* Subtitles as text */
int i_align, mtime_t i_pts );
static void EventHandler( vbi_event *ev, void *user_data );
-static int OpaquePage( picture_t *p_src, const vbi_page p_page,
- const video_format_t fmt, bool b_opaque );
+static int OpaquePage( picture_t *p_src, const vbi_page *p_page,
+ const video_format_t fmt, bool b_opaque, const int text_offset );
+static int get_first_visible_row( vbi_char *p_text, int rows, int columns);
+static int get_last_visible_row( vbi_char *p_text, int rows, int columns);
/* Properties callbacks */
static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
if( p_dec->fmt_in.i_codec != VLC_CODEC_TELETEXT )
return VLC_EGENERIC;
- p_dec->pf_decode_sub = Decode;
- p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
+ p_sys = p_dec->p_sys = calloc( 1, sizeof(decoder_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
- memset( p_sys, 0, sizeof(decoder_sys_t) );
p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0';
p_sys->b_update = false;
p_sys->p_vbi_dec = vbi_decoder_new();
- p_sys->p_dvb_demux = vbi_dvb_pes_demux_new( NULL, NULL );
vlc_mutex_init( &p_sys->lock );
- if( (p_sys->p_vbi_dec == NULL) || (p_sys->p_dvb_demux == NULL) )
+ if( p_sys->p_vbi_dec == NULL )
{
- msg_Err( p_dec, "VBI decoder/demux could not be created." );
+ msg_Err( p_dec, "VBI decoder could not be created." );
Close( p_this );
return VLC_ENOMEM;
}
/* Create the var on vlc_global. */
p_sys->i_wanted_page = var_CreateGetInteger( p_dec, "vbi-page" );
- var_AddCallback( p_dec, "vbi-page",
- RequestPage, p_sys );
+ var_AddCallback( p_dec, "vbi-page", RequestPage, p_sys );
/* Check if the Teletext track has a known "initial page". */
if( p_sys->i_wanted_page == 100 && p_dec->fmt_in.subs.teletext.i_magazine != -1 )
p_dec->fmt_out.video.i_chroma = VLC_CODEC_TEXT;
else
p_dec->fmt_out.video.i_chroma = VLC_CODEC_RGBA;
+
+ p_dec->pf_decode_sub = Decode;
return VLC_SUCCESS;
}
if( p_sys->p_vbi_dec )
vbi_decoder_delete( p_sys->p_vbi_dec );
- if( p_sys->p_dvb_demux )
- vbi_dvb_demux_delete( p_sys->p_dvb_demux );
free( p_sys );
}
-#define MAX_SLICES 32
-
#ifdef WORDS_BIGENDIAN
# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_BE
#else
# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_LE
#endif
-
/*****************************************************************************
* Decode:
*****************************************************************************/
video_format_t fmt;
bool b_cached = false;
vbi_page p_page;
- const uint8_t *p_pos;
- unsigned int i_left;
if( (pp_block == NULL) || (*pp_block == NULL) )
return NULL;
p_block = *pp_block;
*pp_block = NULL;
- p_pos = p_block->p_buffer;
- i_left = p_block->i_buffer;
-
- while( i_left > 0 )
+ if( p_block->i_buffer > 0 &&
+ ( ( p_block->p_buffer[0] >= 0x10 && p_block->p_buffer[0] <= 0x1f ) ||
+ ( p_block->p_buffer[0] >= 0x99 && p_block->p_buffer[0] <= 0x9b ) ) )
{
- vbi_sliced p_sliced[MAX_SLICES];
- unsigned int i_lines = 0;
- int64_t i_pts;
+ vbi_sliced *p_sliced = p_sys->p_vbi_sliced;
+ unsigned int i_lines = 0;
- i_lines = vbi_dvb_demux_cor( p_sys->p_dvb_demux, p_sliced,
- MAX_SLICES, &i_pts, &p_pos, &i_left );
+ p_block->i_buffer--;
+ p_block->p_buffer++;
+ while( p_block->i_buffer >= 2 )
+ {
+ int i_id = p_block->p_buffer[0];
+ unsigned i_size = p_block->p_buffer[1];
+
+ if( 2 + i_size > p_block->i_buffer )
+ break;
+
+ if( ( i_id == 0x02 || i_id == 0x03 ) && i_size >= 44 && i_lines < MAX_SLICES )
+ {
+ if(p_block->p_buffer[3] == 0xE4 ) /* framing_code */
+ {
+ unsigned line_offset = p_block->p_buffer[2] & 0x1f;
+ unsigned field_parity = p_block->p_buffer[2] & 0x20;
+
+ p_sliced[i_lines].id = VBI_SLICED_TELETEXT_B;
+ if( line_offset > 0 )
+ p_sliced[i_lines].line = line_offset + (field_parity ? 0 : 313);
+ else
+ p_sliced[i_lines].line = 0;
+ for( int i = 0; i < 42; i++ )
+ p_sliced[i_lines].data[i] = vbi_rev8( p_block->p_buffer[4 + i] );
+ i_lines++;
+ }
+ }
+
+ p_block->i_buffer -= 2 + i_size;
+ p_block->p_buffer += 2 + i_size;
+ }
if( i_lines > 0 )
- vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, i_pts / 90000.0 );
+ vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, 0 );
}
/* */
if( !b_cached )
{
- if( p_sys->i_last_page != i_wanted_page )
+ if( p_sys->b_text && p_sys->i_last_page != i_wanted_page )
{
/* We need to reset the subtitle */
p_spu = Subpicture( p_dec, &fmt, true,
i_align, p_block->i_pts );
if( !p_spu )
goto error;
- p_spu->p_region->psz_text = strdup("");
+ subpicture_updater_sys_t *p_spu_sys = p_spu->updater.p_sys;
+ p_spu_sys->text = strdup("");
p_sys->b_update = true;
p_sys->i_last_page = i_wanted_page;
msg_Dbg( p_dec, "we now have page: %d ready for display",
i_wanted_page );
#endif
+
+ /* Ignore transparent rows at the beginning and end */
+ int i_first_row = get_first_visible_row( p_page.text, p_page.rows, p_page.columns );
+ int i_num_rows;
+ if ( i_first_row < 0 ) {
+ i_first_row = p_page.rows - 1;
+ i_num_rows = 0;
+ } else {
+ i_num_rows = get_last_visible_row( p_page.text, p_page.rows, p_page.columns ) - i_first_row + 1;
+ }
+#ifdef ZVBI_DEBUG
+ msg_Dbg( p_dec, "After top and tail of page we have rows %i-%i of %i",
+ i_first_row + 1, i_first_row + i_num_rows, p_page.rows );
+#endif
+
/* If there is a page or sub to render, then we do that here */
/* Create the subpicture unit */
p_spu = Subpicture( p_dec, &fmt, p_sys->b_text,
- p_page.columns, p_page.rows,
+ p_page.columns, i_num_rows,
i_align, p_block->i_pts );
if( !p_spu )
goto error;
if( p_sys->b_text )
{
unsigned int i_textsize = 7000;
- int i_total;
+ int i_total,offset;
char p_text[i_textsize+1];
i_total = vbi_print_page_region( &p_page, p_text, i_textsize,
- "UTF-8", 0, 0, 0, 0, p_page.columns, p_page.rows );
- p_text[i_total] = '\0';
- /* Strip off the pagenumber */
- if( i_total <= 40 )
- goto error;
- p_spu->p_region->psz_text = strdup( &p_text[8] );
+ "UTF-8", 0, 0, 0, i_first_row, p_page.columns, i_num_rows );
+
+ for( offset=1; offset<i_total && isspace( p_text[i_total-offset ] ); offset++)
+ p_text[i_total-offset] = '\0';
+
+ i_total -= offset;
+
+ offset=0;
+ while( offset < i_total && isspace( p_text[offset] ) )
+ offset++;
+
+ subpicture_updater_sys_t *p_spu_sys = p_spu->updater.p_sys;
+ p_spu_sys->text = strdup( &p_text[offset] );
+
+ p_spu_sys->align = i_align;
+ p_spu_sys->i_font_height_percent = 5;
+ p_spu_sys->renderbg = b_opaque;
#ifdef ZVBI_DEBUG
- msg_Info( p_dec, "page %x-%x(%d)\n%s", p_page.pgno, p_page.subno, i_total, p_text );
+ msg_Info( p_dec, "page %x-%x(%d)\n\"%s\"", p_page.pgno, p_page.subno, i_total, &p_text[offset] );
#endif
}
else
/* ZVBI is stupid enough to assume pitch == width */
p_pic->p->i_pitch = 4 * fmt.i_width;
- vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32,
- p_spu->p_region->p_picture->p->p_pixels, 1, 1 );
+
+ /* Maintain subtitle postion */
+ p_spu->p_region->i_y = i_first_row*10;
+ p_spu->i_original_picture_width = p_page.columns*12;
+ p_spu->i_original_picture_height = p_page.rows*10;
+
+ vbi_draw_vt_page_region( &p_page, ZVBI_PIXFMT_RGBA32,
+ p_spu->p_region->p_picture->p->p_pixels, -1,
+ 0, i_first_row, p_page.columns, i_num_rows,
+ 1, 1);
vlc_mutex_lock( &p_sys->lock );
memcpy( p_sys->nav_link, &p_page.nav_link, sizeof( p_sys->nav_link )) ;
vlc_mutex_unlock( &p_sys->lock );
- OpaquePage( p_pic, p_page, fmt, b_opaque );
+ OpaquePage( p_pic, &p_page, fmt, b_opaque, i_first_row * p_page.columns );
}
exit:
error:
vbi_unref_page( &p_page );
- if( p_spu != NULL )
- {
- decoder_DeleteSubpicture( p_dec, p_spu );
- p_spu = NULL;
- }
-
block_Release( p_block );
return NULL;
}
mtime_t i_pts )
{
video_format_t fmt;
- subpicture_t *p_spu;
+ subpicture_t *p_spu=NULL;
/* If there is a page or sub to render, then we do that here */
/* Create the subpicture unit */
- p_spu = decoder_NewSubpicture( p_dec );
+ if( b_text )
+ p_spu = decoder_NewSubpictureText( p_dec );
+ else
+ p_spu = decoder_NewSubpicture( p_dec, NULL );
if( !p_spu )
{
msg_Warn( p_dec, "can't get spu buffer" );
return NULL;
}
- memset( &fmt, 0, sizeof(video_format_t) );
- fmt.i_chroma = b_text ? VLC_CODEC_TEXT :
- VLC_CODEC_RGBA;
- fmt.i_aspect = b_text ? 0 : VOUT_ASPECT_FACTOR;
+ video_format_Init(&fmt, b_text ? VLC_CODEC_TEXT : VLC_CODEC_RGBA);
if( b_text )
{
fmt.i_bits_per_pixel = 0;
}
else
{
- fmt.i_sar_num = fmt.i_sar_den = 1;
fmt.i_width = fmt.i_visible_width = i_columns * 12;
fmt.i_height = fmt.i_visible_height = i_rows * 10;
fmt.i_bits_per_pixel = 32;
+ fmt.i_sar_num = fmt.i_sar_den = 0; /* let the vout set the correct AR */
}
fmt.i_x_offset = fmt.i_y_offset = 0;
if( p_spu->p_region == NULL )
{
msg_Err( p_dec, "cannot allocate SPU region" );
- decoder_DeleteSubpicture( p_dec, p_spu );
+ subpicture_Delete( p_spu );
return NULL;
}
p_spu->p_region->i_x = 0;
p_spu->p_region->i_y = 0;
- p_spu->p_region->i_align = i_align;
p_spu->i_start = i_pts;
- p_spu->i_stop = 0;
+ p_spu->i_stop = b_text ? i_pts + (10*CLOCK_FREQ): 0;
p_spu->b_ephemer = true;
- p_spu->b_absolute = false;
+ p_spu->b_absolute = b_text ? false : true;
if( !b_text )
- {
- p_spu->i_original_picture_width = fmt.i_width;
- p_spu->i_original_picture_height = fmt.i_height;
- }
+ p_spu->p_region->i_align = i_align;
+ p_spu->i_original_picture_width = fmt.i_width;
+ p_spu->i_original_picture_height = fmt.i_height;
/* */
*p_fmt = fmt;
msg_Dbg( p_dec, "Network ID changed" );
}
-static int OpaquePage( picture_t *p_src, const vbi_page p_page,
- const video_format_t fmt, bool b_opaque )
+static int get_first_visible_row( vbi_char *p_text, int rows, int columns)
+{
+ for ( int i = 0; i < rows * columns; i++ )
+ {
+ if ( p_text[i].opacity != VBI_TRANSPARENT_SPACE )
+ {
+ return i / columns;
+ }
+ }
+
+ return -1;
+}
+
+static int get_last_visible_row( vbi_char *p_text, int rows, int columns)
+{
+ for ( int i = rows * columns - 1; i >= 0; i-- )
+ {
+ if (p_text[i].opacity != VBI_TRANSPARENT_SPACE)
+ {
+ return i / columns;
+ }
+ }
+
+ return -1;
+}
+
+static int OpaquePage( picture_t *p_src, const vbi_page *p_page,
+ const video_format_t fmt, bool b_opaque, const int text_offset )
{
unsigned int x, y;
{
for( x = 0; x < fmt.i_width; x++ )
{
- const vbi_opacity opacity = p_page.text[ y/10 * p_page.columns + x/12 ].opacity;
- const int background = p_page.text[ y/10 * p_page.columns + x/12 ].background;
+ const vbi_opacity opacity = p_page->text[ text_offset + y/10 * p_page->columns + x/12 ].opacity;
+ const int background = p_page->text[ text_offset + y/10 * p_page->columns + x/12 ].background;
uint32_t *p_pixel = (uint32_t*)&p_src->p->p_pixels[y * p_src->p->i_pitch + 4*x];
switch( opacity )
break;
/* Full text transparency. only foreground color is show */
case VBI_TRANSPARENT_FULL:
- if( (*p_pixel) == (0xff000000 | p_page.color_map[background] ) )
+ if( (*p_pixel) == (0xff000000 | p_page->color_map[background] ) )
*p_pixel = 0;
break;
}
{
decoder_sys_t *p_sys = p_data;
VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
+ int want_navlink = -1;
vlc_mutex_lock( &p_sys->lock );
switch( newval.i_int )
{
case ZVBI_KEY_RED:
- p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[0].pgno );
- p_sys->i_wanted_subpage = p_sys->nav_link[0].subno;
+ want_navlink = 0;
break;
case ZVBI_KEY_GREEN:
- p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[1].pgno );
- p_sys->i_wanted_subpage = p_sys->nav_link[1].subno;
+ want_navlink = 1;
break;
case ZVBI_KEY_YELLOW:
- p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[2].pgno );
- p_sys->i_wanted_subpage = p_sys->nav_link[2].subno;
+ want_navlink = 2;
break;
case ZVBI_KEY_BLUE:
- p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[3].pgno );
- p_sys->i_wanted_subpage = p_sys->nav_link[3].subno;
+ want_navlink = 3;
break;
case ZVBI_KEY_INDEX:
- p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[5].pgno ); /* #4 is SKIPPED */
- p_sys->i_wanted_subpage = p_sys->nav_link[5].subno;
+ want_navlink = 5; /* #4 is SKIPPED */
break;
}
- if( newval.i_int > 0 && newval.i_int < 999 )
+
+ if (want_navlink > -1)
+ {
+ int page = vbi_bcd2dec( p_sys->nav_link[want_navlink].pgno );
+ if (page > 0 && page < 999) {
+ p_sys->i_wanted_page = page;
+ p_sys->i_wanted_subpage = p_sys->nav_link[want_navlink].subno;
+ }
+ }
+ else if( newval.i_int > 0 && newval.i_int < 999 )
{
p_sys->i_wanted_page = newval.i_int;
p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
decoder_t *p_dec = p_data;
decoder_sys_t *p_sys = p_dec->p_sys;
- VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
+ VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED( p_this );
/* FIXME: Capture + and - key for subpage browsing */
if( newval.i_int == '-' || newval.i_int == '+' )
if ( !vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x00 ) || vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x99 ) )
p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
else
- vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %d", _("Subpage"), vbi_bcd2dec( p_sys->i_wanted_subpage) );
+ msg_Info( p_dec, "subpage: %d",
+ vbi_bcd2dec( p_sys->i_wanted_subpage) );
p_sys->b_update = true;
vlc_mutex_unlock( &p_sys->lock );
p_sys->i_key[0] = p_sys->i_key[1];
p_sys->i_key[1] = p_sys->i_key[2];
p_sys->i_key[2] = (int)(newval.i_int - '0');
- vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %c%c%c", _("Page"), (char)(p_sys->i_key[0]+'0'), (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') );
+ msg_Info( p_dec, "page: %c%c%c", (char)(p_sys->i_key[0]+'0'),
+ (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') );
int i_new_page = 0;
projects / vlc / blobdiff