static bool dvbpsi_AddSectionTOT(dvbpsi_t *p_dvbpsi, dvbpsi_tot_decoder_t *p_tot_decoder,
dvbpsi_psi_section_t* p_section)
{
assert(p_dvbpsi);
assert(p_tot_decoder);
assert(p_section);
/* Initialize the structures if it's the first section received */
if (!p_tot_decoder->p_building_tot)
{
p_tot_decoder->p_building_tot = dvbpsi_tot_new(
p_section->i_table_id, p_section->i_extension,
p_section->i_version, p_section->b_current_next,
((uint64_t)p_section->p_payload_start[0] << 32)
| ((uint64_t)p_section->p_payload_start[1] << 24)
| ((uint64_t)p_section->p_payload_start[2] << 16)
| ((uint64_t)p_section->p_payload_start[3] << 8)
| (uint64_t)p_section->p_payload_start[4]);
if (p_tot_decoder->p_building_tot == NULL)
return false;
p_tot_decoder->i_last_section_number = p_section->i_last_number;
}
/* Add to linked list of sections */
if (dvbpsi_decoder_psi_section_add(DVBPSI_DECODER(p_tot_decoder), p_section))
dvbpsi_debug(p_dvbpsi, "TOT decoder", "overwrite section number %d",
p_section->i_number);
return true;
}
static bool dvbpsi_AddSectionCAT(dvbpsi_t *p_dvbpsi, dvbpsi_cat_decoder_t *p_decoder,
dvbpsi_psi_section_t* p_section)
{
assert(p_dvbpsi);
assert(p_decoder);
assert(p_section);
/* Initialize the structures if it's the first section received */
if (p_decoder->p_building_cat == NULL)
{
p_decoder->p_building_cat = dvbpsi_cat_new(p_section->i_version,
p_section->b_current_next);
if (p_decoder->p_building_cat == NULL)
return false;
p_decoder->i_last_section_number = p_section->i_last_number;
}
/* Add to linked list of sections */
if (dvbpsi_decoder_psi_section_add(DVBPSI_DECODER(p_decoder), p_section))
dvbpsi_debug(p_dvbpsi, "CAT decoder", "overwrite section number %d",
p_section->i_number);
return true;
}
static bool dvbpsi_AddSectionPMT( dvbpsi_t *p_dvbpsi, dvbpsi_pmt_decoder_t *p_pmt_decoder,
dvbpsi_psi_section_t* p_section )
{
assert( p_dvbpsi );
assert( p_pmt_decoder );
assert( p_section );
/* Initialize the structures if it's the first section received */
if ( p_pmt_decoder->p_building_pmt == NULL )
{
p_pmt_decoder->p_building_pmt = dvbpsi_pmt_new( p_pmt_decoder->i_program_number,
p_section->i_version, p_section->b_current_next,
( (uint16_t) (p_section->p_payload_start[0] & 0x1f) << 8)//0x02
| p_section->p_payload_start[1] );// 0xb0
if ( p_pmt_decoder->p_building_pmt == NULL )
return(false);
p_pmt_decoder->i_last_section_number = p_section->i_last_number;
}
/* Add to linked list of sections */
if ( dvbpsi_decoder_psi_section_add( DVBPSI_DECODER( p_pmt_decoder ), p_section ) )
dvbpsi_debug( p_dvbpsi, "PMT decoder", "overwrite section number %d",
p_section->i_number );
return(true);
}
static bool dvbpsi_AddSectionETT(dvbpsi_t *p_dvbpsi, dvbpsi_atsc_ett_decoder_t *p_decoder,
dvbpsi_psi_section_t* p_section)
{
assert(p_dvbpsi);
assert(p_decoder);
assert(p_section);
/* Initialize the structures if it's the first section received */
if (!p_decoder->p_building_ett)
{
uint32_t i_etm_id = ((uint32_t)p_section->p_payload_start[1] << 24) |
((uint32_t)p_section->p_payload_start[2] << 16) |
((uint32_t)p_section->p_payload_start[3] << 8) |
((uint32_t)p_section->p_payload_start[4] << 0);
p_decoder->p_building_ett = dvbpsi_atsc_NewETT(p_section->i_table_id,
p_section->i_extension,
p_section->i_version,
p_section->p_payload_start[0],
i_etm_id,
p_section->b_current_next);
if (!p_decoder->p_building_ett)
return false;
p_decoder->i_last_section_number = p_section->i_last_number;
}
/* Add to linked list of sections */
if (dvbpsi_decoder_psi_section_add(DVBPSI_DECODER(p_decoder), p_section))
dvbpsi_debug(p_dvbpsi, "ATSC ETT decoder", "overwrite section number %d",
p_section->i_number);
return true;
}
/*****************************************************************************
* 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);
}
}
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 );
}
}
/*****************************************************************************
* 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);
}
}
/*****************************************************************************
* 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);
}
}
/*****************************************************************************
* 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);
}
}
/*****************************************************************************
* 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);
}
}
/*****************************************************************************
* dvbpsi_GatherVCTSections
*****************************************************************************
* Callback for the PSI decoder.
*****************************************************************************/
void dvbpsi_GatherVCTSections(dvbpsi_t *p_dvbpsi,
void * p_private_decoder,
dvbpsi_psi_section_t * p_section)
{
assert(p_dvbpsi);
assert(p_dvbpsi->p_private);
dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *)p_dvbpsi->p_private;
dvbpsi_vct_decoder_t *p_vct_decoder
= (dvbpsi_vct_decoder_t*)p_private_decoder;
dvbpsi_debug(p_dvbpsi, "VCT decoder",
"Table version %2d, " "i_table_id %2d, " "i_extension %5d, "
"section %3d up to %3d, " "current %1d",
p_section->i_version, p_section->i_table_id,
p_section->i_extension,
p_section->i_number, p_section->i_last_number,
p_section->b_current_next);
if (!p_section->b_syntax_indicator)
{
/* Invalid section_syntax_indicator */
dvbpsi_error(p_dvbpsi, "VCT decoder",
"invalid section (section_syntax_indicator == 0)");
dvbpsi_DeletePSISections(p_section);
return;
}
bool b_reinit = false;
/* TS discontinuity check */
if (p_demux->b_discontinuity)
{
b_reinit = true;
p_demux->b_discontinuity = false;
}
else
{
/* Perform a few sanity checks */
if (p_vct_decoder->p_building_vct)
{
if (p_vct_decoder->p_building_vct->i_ts_id != p_section->i_extension)
{
/* transport_stream_id */
dvbpsi_error(p_dvbpsi, "VCT decoder",
"'transport_stream_id' differs"
" whereas no TS discontinuity has occured");
b_reinit = true;
}
else if (p_vct_decoder->p_building_vct->i_version != p_section->i_version)
{
/* version_number */
dvbpsi_error(p_dvbpsi, "VCT decoder",
"'version_number' differs"
" whereas no discontinuity has occured");
b_reinit = true;
}
else if (p_vct_decoder->i_last_section_number != p_section->i_last_number)
{
/* last_section_number */
dvbpsi_error(p_dvbpsi, "VCT decoder",
"'last_section_number' differs"
" whereas no discontinuity has occured");
b_reinit = true;
}
}
else
{
if( (p_vct_decoder->b_current_valid)
&& (p_vct_decoder->current_vct.i_version == p_section->i_version)
&& (p_vct_decoder->current_vct.b_current_next == p_section->b_current_next))
{
/* Don't decode since this version is already decoded */
dvbpsi_DeletePSISections(p_section);
return;
}
}
}
/* Reinit the decoder if wanted */
if (b_reinit)
{
/* Force redecoding */
p_vct_decoder->b_current_valid = false;
/* Free structures */
if (p_vct_decoder->p_building_vct)
{
free(p_vct_decoder->p_building_vct);
p_vct_decoder->p_building_vct = NULL;
}
/* Clear the section array */
for (unsigned int i = 0; i <= 255; i++)
{
if (p_vct_decoder->ap_sections[i] != NULL)
{
dvbpsi_DeletePSISections(p_vct_decoder->ap_sections[i]);
p_vct_decoder->ap_sections[i] = NULL;
}
}
}
/* Initialize the structures if it's the first section received */
if (!p_vct_decoder->p_building_vct)
{
p_vct_decoder->p_building_vct = (dvbpsi_vct_t*)calloc(1, sizeof(dvbpsi_vct_t));
if (p_vct_decoder->p_building_vct)
{
dvbpsi_InitVCT(p_vct_decoder->p_building_vct,
p_section->i_extension,
p_section->i_version,
p_section->b_current_next,
p_section->i_table_id);
p_vct_decoder->i_last_section_number = p_section->i_last_number;
}
else
dvbpsi_debug(p_dvbpsi, "VCT decoder", "failed decoding section");
}
/* Fill the section array */
if (p_vct_decoder->ap_sections[p_section->i_number] != NULL)
{
dvbpsi_debug(p_dvbpsi, "VCT decoder", "overwrite section number %d",
p_section->i_number);
dvbpsi_DeletePSISections(p_vct_decoder->ap_sections[p_section->i_number]);
}
p_vct_decoder->ap_sections[p_section->i_number] = p_section;
/* Check if we have all the sections */
bool b_complete = false;
for (unsigned int i = 0; i <= p_vct_decoder->i_last_section_number; i++)
{
if (!p_vct_decoder->ap_sections[i])
break;
if (i == p_vct_decoder->i_last_section_number)
b_complete = true;
}
if (b_complete)
{
/* Save the current information */
p_vct_decoder->current_vct = *p_vct_decoder->p_building_vct;
p_vct_decoder->b_current_valid = true;
/* Chain the sections */
if (p_vct_decoder->i_last_section_number)
{
for (unsigned int i = 0; (int)i <= p_vct_decoder->i_last_section_number - 1; i++)
p_vct_decoder->ap_sections[i]->p_next = p_vct_decoder->ap_sections[i + 1];
}
/* Decode the sections */
dvbpsi_DecodeVCTSections(p_vct_decoder->p_building_vct,
p_vct_decoder->ap_sections[0]);
/* Delete the sections */
dvbpsi_DeletePSISections(p_vct_decoder->ap_sections[0]);
p_vct_decoder->ap_sections[0] = NULL;
/* signal the new VCT */
p_vct_decoder->pf_vct_callback(p_vct_decoder->p_cb_data,
p_vct_decoder->p_building_vct);
/* Reinitialize the structures */
p_vct_decoder->p_building_vct = NULL;
for (unsigned int i = 0; i <= p_vct_decoder->i_last_section_number; i++)
p_vct_decoder->ap_sections[i] = NULL;
}
}
/*****************************************************************************
* 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);
}
}
/*****************************************************************************
* dvbpsi_GatherBATSections
*****************************************************************************
* Callback for the subtable demultiplexor.
*****************************************************************************/
void dvbpsi_GatherBATSections(dvbpsi_t *p_dvbpsi,
void * p_private_decoder,
dvbpsi_psi_section_t * p_section)
{
dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_private;
dvbpsi_bat_decoder_t * p_bat_decoder
= (dvbpsi_bat_decoder_t*)p_private_decoder;
bool b_reinit = false;
assert(p_dvbpsi);
assert(p_dvbpsi->p_private);
if (!p_section->b_syntax_indicator)
{
/* Invalid section_syntax_indicator */
dvbpsi_error(p_dvbpsi, "BAT decoder",
"invalid section (section_syntax_indicator == 0)");
dvbpsi_DeletePSISections(p_section);
return;
}
dvbpsi_debug(p_dvbpsi, "BAT decoder",
"Table version %2d, " "i_table_id %2d, " "i_extension %5d, "
"section %3d up to %3d, " "current %1d",
p_section->i_version, p_section->i_table_id,
p_section->i_extension,
p_section->i_number, p_section->i_last_number,
p_section->b_current_next);
/* We have a valid BAT section */
/* TS discontinuity check */
if (p_demux->b_discontinuity)
{
b_reinit = true;
p_demux->b_discontinuity = false;
}
else
{
/* Perform a few sanity checks */
if (p_bat_decoder->p_building_bat)
{
if (p_bat_decoder->p_building_bat->i_bouquet_id != p_section->i_extension)
{
/* bouquet_id */
dvbpsi_error(p_dvbpsi, "BAT decoder", "'bouquet_id' differs"
" whereas no TS discontinuity has occured");
b_reinit = true;
}
else if (p_bat_decoder->p_building_bat->i_version
!= p_section->i_version)
{
/* version_number */
dvbpsi_error(p_dvbpsi, "BAT decoder", "'version_number' differs"
" whereas no discontinuity has occured");
b_reinit = true;
}
else if (p_bat_decoder->i_last_section_number !=
p_section->i_last_number)
{
/* last_section_number */
dvbpsi_error(p_dvbpsi, "BAT decoder", "'last_section_number' differs"
" whereas no discontinuity has occured");
b_reinit = true;
}
}
else
{
if ( (p_bat_decoder->b_current_valid)
&& (p_bat_decoder->current_bat.i_version == p_section->i_version)
&& (p_bat_decoder->current_bat.b_current_next ==
p_section->b_current_next))
{
/* Don't decode since this version is already decoded */
dvbpsi_debug(p_dvbpsi, "BAT decoder",
"ignoring already decoded section %d",
p_section->i_number);
}
else if ( (!p_bat_decoder->current_bat.b_current_next)
&& (p_section->b_current_next))
{
/* Signal a new BAT if the previous one wasn't active */
dvbpsi_bat_t *p_bat = (dvbpsi_bat_t*)malloc(sizeof(dvbpsi_bat_t));
if (p_bat)
{
p_bat_decoder->current_bat.b_current_next = true;
memcpy(p_bat, &p_bat_decoder->current_bat, sizeof(dvbpsi_bat_t));
p_bat_decoder->pf_bat_callback(p_bat_decoder->p_cb_data, p_bat);
}
else
dvbpsi_error(p_dvbpsi, "BAT decoder", "Could not signal new BAT.");
}
dvbpsi_DeletePSISections(p_section);
return;
}
}
/* Reinit the decoder if wanted */
if (b_reinit)
{
/* Force redecoding */
p_bat_decoder->b_current_valid = false;
/* Free structures */
if (p_bat_decoder->p_building_bat)
{
free(p_bat_decoder->p_building_bat);
p_bat_decoder->p_building_bat = NULL;
}
/* Clear the section array */
for (unsigned int i = 0; i < 256; i++)
{
if (p_bat_decoder->ap_sections[i] != NULL)
{
dvbpsi_DeletePSISections(p_bat_decoder->ap_sections[i]);
p_bat_decoder->ap_sections[i] = NULL;
}
}
}
/* Append the section to the list if wanted */
bool b_complete = false;
/* Initialize the structures if it's the first section received */
if (!p_bat_decoder->p_building_bat)
{
p_bat_decoder->p_building_bat =
(dvbpsi_bat_t*)malloc(sizeof(dvbpsi_bat_t));
if (p_bat_decoder->p_building_bat)
dvbpsi_InitBAT(p_bat_decoder->p_building_bat,
p_section->i_extension,
p_section->i_version,
p_section->b_current_next);
else
dvbpsi_error(p_dvbpsi, "BAT decoder", "failed decoding BAT section");
p_bat_decoder->i_last_section_number = p_section->i_last_number;
}
/* Fill the section array */
if (p_bat_decoder->ap_sections[p_section->i_number] != NULL)
{
dvbpsi_debug(p_dvbpsi, "BAT decoder", "overwrite section number %d",
p_section->i_number);
dvbpsi_DeletePSISections(p_bat_decoder->ap_sections[p_section->i_number]);
}
p_bat_decoder->ap_sections[p_section->i_number] = p_section;
/* Check if we have all the sections */
for (unsigned int i = 0; i <= p_bat_decoder->i_last_section_number; i++)
{
if (!p_bat_decoder->ap_sections[i])
break;
if (i == p_bat_decoder->i_last_section_number)
b_complete = true;
}
if (b_complete)
{
/* Save the current information */
p_bat_decoder->current_bat = *p_bat_decoder->p_building_bat;
p_bat_decoder->b_current_valid = true;
/* Chain the sections */
if (p_bat_decoder->i_last_section_number)
{
for (int j = 0; j <= p_bat_decoder->i_last_section_number - 1; j++)
p_bat_decoder->ap_sections[j]->p_next =
p_bat_decoder->ap_sections[j + 1];
}
/* Decode the sections */
dvbpsi_DecodeBATSections(p_bat_decoder->p_building_bat,
p_bat_decoder->ap_sections[0]);
/* Delete the sections */
dvbpsi_DeletePSISections(p_bat_decoder->ap_sections[0]);
/* signal the new BAT */
p_bat_decoder->pf_bat_callback(p_bat_decoder->p_cb_data,
p_bat_decoder->p_building_bat);
/* Reinitialize the structures */
p_bat_decoder->p_building_bat = NULL;
for (unsigned int i = 0; i <= p_bat_decoder->i_last_section_number; i++)
p_bat_decoder->ap_sections[i] = NULL;
}
}
/*****************************************************************************
* 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);
}
}