예제 #1
0
파일: cat.c 프로젝트: UIKit0/libdvbpsi
/*****************************************************************************
 * dvbpsi_cat_sections_gather
 *****************************************************************************
 * Callback for the PSI decoder.
 *****************************************************************************/
void dvbpsi_cat_sections_gather(dvbpsi_t *p_dvbpsi,
                              dvbpsi_psi_section_t* p_section)
{
    assert(p_dvbpsi);
    assert(p_dvbpsi->p_decoder);

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, 0x01, "CAT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* */
    dvbpsi_cat_decoder_t* p_cat_decoder
                          = (dvbpsi_cat_decoder_t*)p_dvbpsi->p_decoder;

    /* TS discontinuity check */
    if (p_cat_decoder->b_discontinuity)
    {
        dvbpsi_ReInitCAT(p_cat_decoder, true);
        p_cat_decoder->b_discontinuity = false;
    }
    else
    {
        /* Perform some few sanity checks */
        if (p_cat_decoder->p_building_cat)
        {
            if (dvbpsi_CheckCAT(p_dvbpsi, p_section))
                dvbpsi_ReInitCAT(p_cat_decoder, true);
        }
        else
        {
             if (   (p_cat_decoder->b_current_valid)
                 && (p_cat_decoder->current_cat.i_version == p_section->i_version)
                 && (p_cat_decoder->current_cat.b_current_next ==
                                                   p_section->b_current_next))
             {
                 /* Don't decode since this version is already decoded */
                 dvbpsi_debug(p_dvbpsi, "CAT decoder",
                              "ignoring already decoded section %d",
                              p_section->i_number);
                 dvbpsi_DeletePSISections(p_section);
                 return;
             }
        }
    }

    /* Add section to CAT */
    if (!dvbpsi_AddSectionCAT(p_dvbpsi, p_cat_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "CAT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_cat_decoder)))
    {
        assert(p_cat_decoder->pf_cat_callback);

        /* Save the current information */
        p_cat_decoder->current_cat = *p_cat_decoder->p_building_cat;
        p_cat_decoder->b_current_valid = true;
        /* Decode the sections */
        dvbpsi_cat_sections_decode(p_cat_decoder->p_building_cat,
                                   p_cat_decoder->p_sections);
        /* signal the new CAT */
        p_cat_decoder->pf_cat_callback(p_cat_decoder->p_cb_data,
                                       p_cat_decoder->p_building_cat);
        /* Delete sections and Reinitialize the structures */
        dvbpsi_ReInitCAT(p_cat_decoder, false);
        assert(p_cat_decoder->p_sections == NULL);
    }
}
예제 #2
0
파일: pat.c 프로젝트: mwgoldsmith/dvbpsi
/*****************************************************************************
 * dvbpsi_pat_sections_gather
 *****************************************************************************
 * Callback for the PSI decoder.
 *****************************************************************************/
void dvbpsi_pat_sections_gather(dvbpsi_t* p_dvbpsi, dvbpsi_psi_section_t* p_section)
{

    assert(p_dvbpsi);

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, 0x00, "PAT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Now we have a valid PAT section */
    dvbpsi_decoder_t *p_dec = dvbpsi_decoder_chain_get(p_dvbpsi, p_section->i_table_id, p_section->i_extension);
    if (!p_dec)
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* TS discontinuity check */
    dvbpsi_pat_decoder_t *p_pat_decoder = (dvbpsi_pat_decoder_t *)p_dec;
    if (p_pat_decoder->b_discontinuity)
    {
        dvbpsi_ReInitPAT(p_pat_decoder, true);
        p_pat_decoder->b_discontinuity = false;
    }
    else
    {
        if (p_pat_decoder->p_building_pat)
        {
            if (dvbpsi_CheckPAT(p_dvbpsi, p_pat_decoder, p_section))
                dvbpsi_ReInitPAT(p_pat_decoder, true);
        }
        else
        {
            if(    (p_pat_decoder->b_current_valid)
                && (p_pat_decoder->current_pat.i_version == p_section->i_version)
                && (p_pat_decoder->current_pat.b_current_next ==
                                               p_section->b_current_next))
            {
                /* Don't decode since this version is already decoded */
                dvbpsi_debug(p_dvbpsi, "PAT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                dvbpsi_DeletePSISections(p_section);
                return;
            }
        }
    }

    /* Add section to PAT */
    if (!dvbpsi_AddSectionPAT(p_dvbpsi, p_pat_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "PAT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_pat_decoder)))
    {
        assert(p_pat_decoder->pf_pat_callback);

        /* Save the current information */
        p_pat_decoder->current_pat = *p_pat_decoder->p_building_pat;

        /* Decode the sections */
        if (dvbpsi_pat_sections_decode(p_pat_decoder->p_building_pat,
                                       p_pat_decoder->p_sections))
            p_pat_decoder->b_current_valid = true;

        /* signal the new PAT */
        if (p_pat_decoder->b_current_valid)
            p_pat_decoder->pf_pat_callback(p_pat_decoder->p_priv,
                                           p_pat_decoder->p_building_pat);

        /* Delete sectioins and Reinitialize the structures */
        dvbpsi_ReInitPAT(p_pat_decoder, !p_pat_decoder->b_current_valid);
        assert(p_pat_decoder->p_sections == NULL);
    }
}
예제 #3
0
void dvbpsi_pmt_sections_gather( dvbpsi_t *p_dvbpsi, dvbpsi_psi_section_t* p_section )
{
	assert( p_dvbpsi );
	assert( p_dvbpsi->p_decoder );

	/* ¼ì²étable_id */
	if ( !dvbpsi_CheckPSISection( p_dvbpsi, p_section, 0x02, "PMT decoder" ) )
	{
		dvbpsi_DeletePSISections( p_section );
		return;
	}

	/* */
	dvbpsi_pmt_decoder_t* p_pmt_decoder = (dvbpsi_pmt_decoder_t *) p_dvbpsi->p_decoder;
	assert( p_pmt_decoder );

	/* We have a valid PMT section */
	/* ½ÚÄ¿ºÅ¼ì²é*/
	if ( p_pmt_decoder->i_program_number != p_section->i_extension )
	{
		/* Invalid program_number */
		dvbpsi_debug( p_dvbpsi, "PMT decoder", "ignoring section %d not belonging to 'program_number' %d",
			      p_section->i_extension, p_pmt_decoder->i_program_number );
		dvbpsi_DeletePSISections( p_section );
		return;
	}

	/* TS discontinuity check */
	if ( p_pmt_decoder->b_discontinuity )
	{
		dvbpsi_ReInitPMT( p_pmt_decoder, true );
		p_pmt_decoder->b_discontinuity = false;
		
	}else  {
	
		/* Perform some few sanity checks */
		if ( p_pmt_decoder->p_building_pmt )
		{
			if ( dvbpsi_CheckPMT( p_dvbpsi, p_section ) )
				dvbpsi_ReInitPMT( p_pmt_decoder, true );
		}else  {
			if ( (p_pmt_decoder->b_current_valid)
			     && (p_pmt_decoder->current_pmt.i_version == p_section->i_version)
			     && (p_pmt_decoder->current_pmt.b_current_next ==
				 p_section->b_current_next) )
			{
				/* Don't decode since this version is already decoded */
				dvbpsi_debug( p_dvbpsi, "PMT decoder",
					      "ignoring already decoded section %d",
					      p_section->i_number );
				dvbpsi_DeletePSISections( p_section );
				return;
			}
		}
	}

	/* Add section to PMT */
	if ( !dvbpsi_AddSectionPMT( p_dvbpsi, p_pmt_decoder, p_section ) )
	{
		dvbpsi_error( p_dvbpsi, "PMT decoder", "failed decoding section %d",
			      p_section->i_number );
		dvbpsi_DeletePSISections( p_section );
		return;
	}

	if ( dvbpsi_decoder_psi_sections_completed( DVBPSI_DECODER( p_pmt_decoder ) ) )
	{
		assert( p_pmt_decoder->pf_pmt_callback );

		/* Save the current information */
		p_pmt_decoder->current_pmt	= *p_pmt_decoder->p_building_pmt;
		p_pmt_decoder->b_current_valid	= true;
		/* Decode the sections */
		dvbpsi_pmt_sections_decode( p_pmt_decoder->p_building_pmt,
					    p_pmt_decoder->p_sections );
		/* signal the new PMT */

		p_pmt_decoder->pf_pmt_callback( p_pmt_decoder->p_cb_data,
						p_pmt_decoder->p_building_pmt );
		/* Delete sections and Reinitialize the structures */
		dvbpsi_ReInitPMT( p_pmt_decoder, false );
		assert( p_pmt_decoder->p_sections == NULL );
	}
}
예제 #4
0
파일: tot.c 프로젝트: avble/libdvbpsi
/*****************************************************************************
 * dvbpsi_tot_sections_gather
 *****************************************************************************
 * Callback for the PSI decoder.
 *****************************************************************************/
void dvbpsi_tot_sections_gather(dvbpsi_t* p_dvbpsi,
                                dvbpsi_decoder_t* p_decoder,
                                dvbpsi_psi_section_t* p_section)
{
    assert(p_dvbpsi);
    assert(p_dvbpsi->p_decoder);

    const uint8_t i_table_id = ((p_section->i_table_id == 0x70 ||  /* TDT */
                                 p_section->i_table_id == 0x73)) ? /* TOT */
                                    p_section->i_table_id : 0x70;

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, i_table_id, "TDT/TOT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Valid TDT/TOT section */
    dvbpsi_tot_decoder_t* p_tot_decoder = (dvbpsi_tot_decoder_t*)p_decoder;

    /* TS discontinuity check */
    if (p_tot_decoder->b_discontinuity)
    {
        /* We don't care about discontinuities with the TDT/TOT as it
           only consists of one section anyway */
        //dvbpsi_ReInitTOT(p_tot_decoder, true);
        p_tot_decoder->b_discontinuity = false;
    }
    else
    {
        /* Perform a few sanity checks */
        if (p_tot_decoder->p_building_tot)
        {
            if (dvbpsi_CheckTOT(p_dvbpsi, p_tot_decoder, p_section))
                dvbpsi_ReInitTOT(p_tot_decoder, true);
        }
#if 0
/* FIXME: Check TDT/TOT table definition for how the version numbering works for this table */
        else
        {
            if(    (p_tot_decoder->b_current_valid)
                && (p_tot_decoder->current_tot.i_version == p_section->i_version)
                && (p_tot_decoder->current_tot.b_current_next == p_section->b_current_next))
            {
                /* Don't decode since this version is already decoded */
                dvbpsi_debug(p_dvbpsi, "TOT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                dvbpsi_DeletePSISections(p_section);
                return;
            }
        }
#endif
    }

    /* Add section to TOT */
    if (!dvbpsi_AddSectionTOT(p_dvbpsi, p_tot_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "TOT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_tot_decoder)))
    {
        assert(p_tot_decoder->pf_tot_callback);

        /* Save the current information */
        p_tot_decoder->current_tot = *p_tot_decoder->p_building_tot;
        p_tot_decoder->b_current_valid = true;

        /* Decode the sections */
        dvbpsi_tot_sections_decode(p_dvbpsi, p_tot_decoder->p_building_tot,
                                   p_tot_decoder->p_sections);
        /* Delete the sections */
        dvbpsi_DeletePSISections(p_tot_decoder->p_sections);
        p_tot_decoder->p_sections = NULL;
        /* signal the new TOT */
        p_tot_decoder->pf_tot_callback(p_tot_decoder->p_cb_data,
                                       p_tot_decoder->p_building_tot);
        /* Reinitialize the structures */
        dvbpsi_ReInitTOT(p_tot_decoder, false);
    }
}
예제 #5
0
파일: atsc_ett.c 프로젝트: egan2015/tsmux
/*****************************************************************************
 * dvbpsi_atsc_GatherETTSections
 *****************************************************************************
 * Callback for the PSI decoder.
 *****************************************************************************/
static void dvbpsi_atsc_GatherETTSections(dvbpsi_t* p_dvbpsi,
                                          dvbpsi_decoder_t *p_decoder,
                                          dvbpsi_psi_section_t* p_section)
{
    assert(p_dvbpsi);
    assert(p_dvbpsi->p_decoder);

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, 0xCC, "ATSC ETT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* We have a valid ETT section */
    dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_decoder;
    dvbpsi_atsc_ett_decoder_t* p_ett_decoder = (dvbpsi_atsc_ett_decoder_t*)p_decoder;
    if (!p_ett_decoder)
    {
        dvbpsi_error(p_dvbpsi, "ATSC ETT decoder", "No decoder specified");
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* TS discontinuity check */
    if (p_demux->b_discontinuity)
    {
        dvbpsi_ReInitETT(p_ett_decoder, true);
        p_ett_decoder->b_discontinuity = false;
        p_demux->b_discontinuity = false;
    }
    else
    {
        /* Perform a few sanity checks */
        if (p_ett_decoder->p_building_ett)
        {
            if (dvbpsi_CheckETT(p_dvbpsi, p_ett_decoder, p_section))
                dvbpsi_ReInitETT(p_ett_decoder, true);
        }
        else
        {
            if (   (p_ett_decoder->b_current_valid)
                && (p_ett_decoder->current_ett.i_version == p_section->i_version)
                && (p_ett_decoder->current_ett.b_current_next ==
                                               p_section->b_current_next))
            {
                /* Don't decode since this version is already decoded */
                dvbpsi_debug(p_dvbpsi, "ATSC ETT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                dvbpsi_DeletePSISections(p_section);
                return;
            }
        }
    }

    /* Add section to ETT */
    if (!dvbpsi_AddSectionETT(p_dvbpsi, p_ett_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "ATSC ETT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_ett_decoder)))
    {
        assert(p_ett_decoder->pf_ett_callback);

        /* Save the current information */
        p_ett_decoder->current_ett = *p_ett_decoder->p_building_ett;
        p_ett_decoder->b_current_valid = true;
        /* Decode the sections */
        dvbpsi_atsc_DecodeETTSections(p_ett_decoder->p_building_ett,
                                      p_ett_decoder->p_sections);
        /* signal the new ETT */
        p_ett_decoder->pf_ett_callback(p_ett_decoder->p_cb_data,
                                       p_ett_decoder->p_building_ett);
        /* Delete sections and Reinitialize the structures */
        dvbpsi_ReInitETT(p_ett_decoder, false);
        assert(p_ett_decoder->p_sections == NULL);
    }
}
예제 #6
0
파일: nit.c 프로젝트: egan2015/tsmux
/*****************************************************************************
 * dvbpsi_nit_sections_gather
 *****************************************************************************
 * Callback for the PSI decoder.
 *****************************************************************************/
void dvbpsi_nit_sections_gather(dvbpsi_t *p_dvbpsi,
                                dvbpsi_decoder_t *p_private_decoder,
                                dvbpsi_psi_section_t *p_section)
{
    assert(p_dvbpsi);

    const uint8_t i_table_id = ((p_section->i_table_id == 0x40) ||
                                (p_section->i_table_id == 0x41)) ?
                                    p_section->i_table_id : 0x40;

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, i_table_id, "NIT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* */
    dvbpsi_nit_decoder_t* p_nit_decoder
                        = (dvbpsi_nit_decoder_t*)p_private_decoder;

    /* We have a valid NIT section */
    if (p_nit_decoder->i_network_id != p_section->i_extension)
    {
        /* Invalid program_number */
        dvbpsi_error(p_dvbpsi, "NIT decoder", "'network_id' don't match");
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* TS discontinuity check */
    if (p_nit_decoder->b_discontinuity)
    {
        dvbpsi_ReInitNIT(p_nit_decoder, true);
        p_nit_decoder->b_discontinuity = false;
    }
    else
    {
        /* Perform some few sanity checks */
        if (p_nit_decoder->p_building_nit)
        {
            if (dvbpsi_CheckNIT(p_dvbpsi, p_nit_decoder, p_section))
                dvbpsi_ReInitNIT(p_nit_decoder, true);
        }
        else
        {
            if (   (p_nit_decoder->b_current_valid)
                && (p_nit_decoder->current_nit.i_version == p_section->i_version)
                && (p_nit_decoder->current_nit.b_current_next == p_section->b_current_next))
            {
                /* Don't decode since this version is already decoded */
                dvbpsi_debug(p_dvbpsi, "NIT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                dvbpsi_DeletePSISections(p_section);
                return;;
            }
        }
    }

    /* Add section to NIT */
    if (!dvbpsi_AddSectionNIT(p_dvbpsi, p_nit_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "NIT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_nit_decoder)))
    {
        assert(p_nit_decoder->pf_nit_callback);

        /* Save the current information */
        p_nit_decoder->current_nit = *p_nit_decoder->p_building_nit;
        p_nit_decoder->b_current_valid = true;

        /* Decode the sections */
        dvbpsi_nit_sections_decode(p_nit_decoder->p_building_nit,
                                   p_nit_decoder->p_sections);
        /* signal the new NIT */
        p_nit_decoder->pf_nit_callback(p_nit_decoder->p_cb_data,
                                       p_nit_decoder->p_building_nit);
        /* Delete sections and Reinitialize the structures */
        dvbpsi_ReInitNIT(p_nit_decoder, false);
        assert(p_nit_decoder->p_sections == NULL);
    }
}
예제 #7
0
파일: atsc_eit.c 프로젝트: avble/libdvbpsi
/*****************************************************************************
 * dvbpsi_atsc_GatherEITSections
 *****************************************************************************
 * Callback for the subtable demultiplexor.
 *****************************************************************************/
static void dvbpsi_atsc_GatherEITSections(dvbpsi_t * p_dvbpsi,
                                          dvbpsi_decoder_t *p_decoder,
                                          dvbpsi_psi_section_t * p_section)
{
    assert(p_dvbpsi);
    assert(p_dvbpsi->p_decoder);

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, 0xCB, "ATSC EIT decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* We have a valid EIT section */
    dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_decoder;
    dvbpsi_atsc_eit_decoder_t *p_eit_decoder = (dvbpsi_atsc_eit_decoder_t*)p_decoder;
    if (!p_eit_decoder)
    {
        dvbpsi_error(p_dvbpsi, "ATSC EIT decoder", "No decoder specified");
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* TS discontinuity check */
    if (p_demux->b_discontinuity)
    {
        dvbpsi_ReInitEIT(p_eit_decoder, true);
        p_eit_decoder->b_discontinuity = false;
        p_demux->b_discontinuity = false;
    }
    else
    {
        /* Perform a few sanity checks */
        if (p_eit_decoder->p_building_eit)
        {
            if (dvbpsi_CheckEIT(p_dvbpsi, p_eit_decoder, p_section))
                dvbpsi_ReInitEIT(p_eit_decoder, true);
        }
        else
        {
            if (   (p_eit_decoder->b_current_valid)
                && (p_eit_decoder->current_eit.i_version == p_section->i_version)
                && (p_eit_decoder->current_eit.b_current_next ==
                                               p_section->b_current_next))
            {
                /* Don't decode since this version is already decoded */
                dvbpsi_debug(p_dvbpsi, "ATSC EIT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                dvbpsi_DeletePSISections(p_section);
                return;
            }
#if 0
            if ((p_eit_decoder->b_current_valid) &&
                (p_eit_decoder->current_eit.i_version == p_section->i_version))
            {
                /* Signal a new EIT if the previous one wasn't active */
                if ((!p_eit_decoder->current_eit.b_current_next) &&
                     (p_section->b_current_next))
                {
                    dvbpsi_atsc_eit_t * p_eit = (dvbpsi_atsc_eit_t*)malloc(sizeof(dvbpsi_atsc_eit_t));
                    if (p_eit)
                    {
                        p_eit_decoder->current_eit.b_current_next = true;
                        *p_eit = p_eit_decoder->current_eit;
                        p_eit_decoder->pf_eit_callback(p_eit_decoder->p_cb_data, p_eit);
                    }
                    else
                        dvbpsi_error(p_dvbpsi, "ATSC EIT decoder", "Could not signal new ATSC EIT.");
                }
            }
            dvbpsi_DeletePSISections(p_section);
            return;
#endif
        }
    }

    /* Add section to EIT */
    if (!dvbpsi_AddSectionEIT(p_dvbpsi, p_eit_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "ATSC EIT decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_eit_decoder)))
    {
        assert(p_eit_decoder->pf_eit_callback);

        /* Save the current information */
        p_eit_decoder->current_eit = *p_eit_decoder->p_building_eit;
        p_eit_decoder->b_current_valid = true;
        /* Decode the sections */
        dvbpsi_atsc_DecodeEITSections(p_eit_decoder->p_building_eit,
                                      p_eit_decoder->p_sections);
        /* Delete the sections */
        dvbpsi_DeletePSISections(p_eit_decoder->p_sections);
        p_eit_decoder->p_sections = NULL;
        /* signal the new EIT */
        p_eit_decoder->pf_eit_callback(p_eit_decoder->p_cb_data,
                                       p_eit_decoder->p_building_eit);
        /* Reinitialize the structures */
        dvbpsi_ReInitEIT(p_eit_decoder, false);
    }
}
예제 #8
0
파일: sis.c 프로젝트: avble/libdvbpsi
/*****************************************************************************
 * dvbpsi_sis_sections_gather
 *****************************************************************************
 * Callback for the subtable demultiplexor.
 *****************************************************************************/
void dvbpsi_sis_sections_gather(dvbpsi_t *p_dvbpsi,
                              dvbpsi_decoder_t *p_decoder,
                              dvbpsi_psi_section_t * p_section)
{
    assert(p_dvbpsi);
    assert(p_dvbpsi->p_decoder);

    if (!dvbpsi_CheckPSISection(p_dvbpsi, p_section, 0xFC, "SIS decoder"))
    {
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* */
    dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_decoder;
    dvbpsi_sis_decoder_t * p_sis_decoder = (dvbpsi_sis_decoder_t*)p_decoder;

    if (p_section->b_private_indicator)
    {
        /* Invalid private_syntax_indicator */
        dvbpsi_error(p_dvbpsi, "SIS decoder",
                     "invalid private section (private_syntax_indicator != false)");
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* TS discontinuity check */
    if (p_demux->b_discontinuity)
    {
        dvbpsi_ReInitSIS(p_sis_decoder, true);
        p_sis_decoder->b_discontinuity = false;
        p_demux->b_discontinuity = false;
    }
    else
    {
        /* Perform a few sanity checks */
        if (p_sis_decoder->p_building_sis)
        {
            if (dvbpsi_CheckSIS(p_dvbpsi, p_sis_decoder, p_section))
                dvbpsi_ReInitSIS(p_sis_decoder, true);
        }
        else
        {
            if(     (p_sis_decoder->b_current_valid)
                 && (p_sis_decoder->current_sis.i_version == p_section->i_version)
                 && (p_sis_decoder->current_sis.b_current_next == p_section->b_current_next))
             {
                 /* Don't decode since this version is already decoded */
                 dvbpsi_debug(p_dvbpsi, "SIT decoder",
                             "ignoring already decoded section %d",
                             p_section->i_number);
                 dvbpsi_DeletePSISections(p_section);
                 return;
             }
        }
    }

    /* Add section to SIS */
    if (!dvbpsi_AddSectionSIS(p_dvbpsi, p_sis_decoder, p_section))
    {
        dvbpsi_error(p_dvbpsi, "SIS decoder", "failed decoding section %d",
                     p_section->i_number);
        dvbpsi_DeletePSISections(p_section);
        return;
    }

    /* Check if we have all the sections */
    if (dvbpsi_decoder_psi_sections_completed(DVBPSI_DECODER(p_sis_decoder)))
    {
        assert(p_sis_decoder->pf_sis_callback);

        /* Save the current information */
        p_sis_decoder->current_sis = *p_sis_decoder->p_building_sis;
        p_sis_decoder->b_current_valid = true;
        /* Decode the sections */
        dvbpsi_sis_sections_decode(p_dvbpsi, p_sis_decoder->p_building_sis,
                                   p_sis_decoder->p_sections);
        /* Delete the sections */
        dvbpsi_DeletePSISections(p_sis_decoder->p_sections);
        p_sis_decoder->p_sections = NULL;
        /* signal the new SDT */
        p_sis_decoder->pf_sis_callback(p_sis_decoder->p_cb_data,
                                       p_sis_decoder->p_building_sis);
        /* Reinitialize the structures */
        dvbpsi_ReInitSIS(p_sis_decoder, false);
    }
}