static void
init_vbi_decoder (void)
{
vbi_bool success;
vbi = vbi_decoder_new ();
if (NULL == vbi)
no_mem_exit ();
if (have_option_default_cs) {
vbi_teletext_set_default_region (vbi, option_default_cs);
}
success = vbi_event_handler_add (vbi,
VBI_EVENT_TTX_PAGE,
event_handler,
/* user_data */ NULL);
if (!success)
no_mem_exit ();
}
/*****************************************************************************
* Open: probe the decoder and return score
*****************************************************************************
* Tries to launch a decoder and return score so that the interface is able
* to chose.
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *) p_this;
decoder_sys_t *p_sys = NULL;
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 = calloc( 1, sizeof(decoder_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
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) )
{
msg_Err( p_dec, "VBI decoder/demux could not be created." );
Close( p_this );
return VLC_ENOMEM;
}
/* Some broadcasters in countries with level 1 and level 1.5 still not send a G0 to do
* matches against table 32 of ETSI 300 706. We try to do some best effort guessing
* This is not perfect, but might handle some cases where we know the vbi language
* is known. It would be better if people started sending G0 */
for( int i = 0; ppsz_default_triplet[i] != NULL; i++ )
{
if( p_dec->fmt_in.psz_language && !strcasecmp( p_dec->fmt_in.psz_language, ppsz_default_triplet[i] ) )
{
vbi_teletext_set_default_region( p_sys->p_vbi_dec, pi_default_triplet[i]);
msg_Dbg( p_dec, "overwriting default zvbi region: %d", pi_default_triplet[i] );
}
}
vbi_event_handler_register( p_sys->p_vbi_dec, VBI_EVENT_TTX_PAGE | VBI_EVENT_NETWORK |
#ifdef ZVBI_DEBUG
VBI_EVENT_CAPTION | VBI_EVENT_TRIGGER |
VBI_EVENT_ASPECT | VBI_EVENT_PROG_INFO | VBI_EVENT_NETWORK_ID |
#endif
0 , EventHandler, p_dec );
/* 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 );
/* 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_sys->i_wanted_page = 100 * p_dec->fmt_in.subs.teletext.i_magazine +
vbi_bcd2dec( p_dec->fmt_in.subs.teletext.i_page );
var_SetInteger( p_dec, "vbi-page", p_sys->i_wanted_page );
}
p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
p_sys->b_opaque = var_CreateGetBool( p_dec, "vbi-opaque" );
var_AddCallback( p_dec, "vbi-opaque", Opaque, p_sys );
p_sys->i_align = var_CreateGetInteger( p_dec, "vbi-position" );
var_AddCallback( p_dec, "vbi-position", Position, p_sys );
p_sys->b_text = var_CreateGetBool( p_dec, "vbi-text" );
// var_AddCallback( p_dec, "vbi-text", Text, p_sys );
/* Listen for keys */
var_AddCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec );
es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_CODEC_SPU );
if( p_sys->b_text )
p_dec->fmt_out.video.i_chroma = VLC_CODEC_TEXT;
else
p_dec->fmt_out.video.i_chroma = VLC_CODEC_RGBA;
return VLC_SUCCESS;
}
