* 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 :
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 */
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;
}
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 )
+ {
+ 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, (double)p_block->i_pts / 1000000 );
}
/* */
}
memset( &fmt, 0, sizeof(video_format_t) );
- fmt.i_chroma = b_text ? VLC_CODEC_TEXT :
- VLC_CODEC_RGBA;
+ fmt.i_chroma = b_text ? VLC_CODEC_TEXT : VLC_CODEC_RGBA;
+ fmt.i_sar_num = 0;
+ fmt.i_sar_den = 1;
if( b_text )
{
fmt.i_bits_per_pixel = 0;
- fmt.i_sar_num = 0;
- fmt.i_sar_den = 0;
}
else
{
- fmt.i_sar_num = 1;
- 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;