Commit ac73c422 authored by Jean-Paul Saman's avatar Jean-Paul Saman

ATSC STT: implement as chained decoder

parent 11fbf5fa
......@@ -39,7 +39,7 @@ Decode PSIP System Time Table.
#include "../dvbpsi_private.h"
#include "../psi.h"
#include "../descriptor.h"
#include "../demux.h"
#include "../chain.h"
#include "atsc_stt.h"
......@@ -60,10 +60,10 @@ dvbpsi_descriptor_t *dvbpsi_atsc_STTAddDescriptor(dvbpsi_atsc_stt_t *p_stt,
uint8_t *p_data);
static void dvbpsi_atsc_GatherSTTSections(dvbpsi_t* p_dvbpsi,
dvbpsi_decoder_t *p_decoder, dvbpsi_psi_section_t* p_section);
dvbpsi_psi_section_t* p_section);
static void dvbpsi_atsc_DecodeSTTSections(dvbpsi_atsc_stt_t* p_stt,
dvbpsi_psi_section_t* p_section);
dvbpsi_psi_section_t* p_section);
/*****************************************************************************
* dvbpsi_atsc_AttachSTT
......@@ -74,10 +74,9 @@ bool dvbpsi_atsc_AttachSTT(dvbpsi_t* p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
dvbpsi_atsc_stt_callback pf_stt_callback, void* p_cb_data)
{
assert(p_dvbpsi);
assert(p_dvbpsi->p_decoder);
dvbpsi_demux_t* p_demux = (dvbpsi_demux_t*)p_dvbpsi->p_decoder;
if (dvbpsi_demuxGetSubDec(p_demux, i_table_id, 0))
dvbpsi_decoder_t *p_dec = dvbpsi_decoder_chain_get(p_dvbpsi, i_table_id, i_extension);
if (p_dec != NULL)
{
dvbpsi_error(p_dvbpsi, "ATSC STT decoder",
"Already a decoder for (table_id == 0x%02x)",
......@@ -86,29 +85,26 @@ bool dvbpsi_atsc_AttachSTT(dvbpsi_t* p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
}
dvbpsi_atsc_stt_decoder_t* p_stt_decoder;
p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*) dvbpsi_decoder_new(NULL,
0, true, sizeof(dvbpsi_atsc_stt_decoder_t));
p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*) dvbpsi_decoder_new(dvbpsi_atsc_GatherSTTSections,
4096, true, sizeof(dvbpsi_atsc_stt_decoder_t));
if (p_stt_decoder == NULL)
return false;
/* subtable decoder configuration */
dvbpsi_demux_subdec_t* p_subdec;
p_subdec = dvbpsi_NewDemuxSubDecoder(i_table_id, i_extension, dvbpsi_atsc_DetachSTT,
dvbpsi_atsc_GatherSTTSections, DVBPSI_DECODER(p_stt_decoder));
if (p_subdec == NULL)
{
dvbpsi_decoder_delete(DVBPSI_DECODER(p_stt_decoder));
return false;
}
/* Attach the subtable decoder to the demux */
dvbpsi_AttachDemuxSubDecoder(p_demux, p_subdec);
/* STT decoder information */
p_stt_decoder->pf_stt_callback = pf_stt_callback;
p_stt_decoder->p_cb_data = p_cb_data;
p_stt_decoder->p_building_stt = NULL;
p_stt_decoder->i_table_id = i_table_id;
p_stt_decoder->i_extension = i_extension;
/* add sdt decoder to decoder chain */
if (!dvbpsi_decoder_chain_add(p_dvbpsi, DVBPSI_DECODER(p_stt_decoder)))
{
dvbpsi_decoder_delete(DVBPSI_DECODER(p_stt_decoder));
return false;
}
return true;
}
......@@ -120,14 +116,11 @@ bool dvbpsi_atsc_AttachSTT(dvbpsi_t* p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
void dvbpsi_atsc_DetachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
{
assert(p_dvbpsi);
assert(p_dvbpsi->p_decoder);
dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_decoder;
i_extension = 0;
dvbpsi_demux_subdec_t* p_subdec;
p_subdec = dvbpsi_demuxGetSubDec(p_demux, i_table_id, i_extension);
if (p_subdec == NULL)
// NOTE: Seems wrong
// i_extension = 0;
dvbpsi_decoder_t *p_dec = dvbpsi_decoder_chain_get(p_dvbpsi, i_table_id, i_extension);
if (p_dec == NULL)
{
dvbpsi_error(p_dvbpsi, "ATSC STT Decoder",
"No such STT decoder (table_id == 0x%02x,"
......@@ -136,17 +129,22 @@ void dvbpsi_atsc_DetachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
return;
}
dvbpsi_atsc_stt_decoder_t* p_stt_decoder;
p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)p_subdec->p_decoder;
if(!p_stt_decoder)
/* Remove table decoder from decoder chain */
if (!dvbpsi_decoder_chain_remove(p_dvbpsi, p_dec))
{
dvbpsi_error(p_dvbpsi, "ATSC STT Decoder",
"Failed to remove"
"extension == 0x%02x)",
i_table_id, i_extension);
return;
}
dvbpsi_atsc_stt_decoder_t* p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)p_dec;
if (p_stt_decoder->p_building_stt)
dvbpsi_atsc_DeleteSTT(p_stt_decoder->p_building_stt);
p_stt_decoder->p_building_stt = NULL;
dvbpsi_DetachDemuxSubDecoder(p_demux, p_subdec);
dvbpsi_DeleteDemuxSubDecoder(p_subdec);
dvbpsi_decoder_delete(p_dec);
p_dec = NULL;
}
/*****************************************************************************
......@@ -307,12 +305,9 @@ static bool dvbpsi_AddSectionSTT(dvbpsi_t *p_dvbpsi, dvbpsi_atsc_stt_decoder_t *
*****************************************************************************
* Callback for the subtable demultiplexor.
*****************************************************************************/
static void dvbpsi_atsc_GatherSTTSections(dvbpsi_t *p_dvbpsi,
dvbpsi_decoder_t *p_decoder,
dvbpsi_psi_section_t * p_section)
static void dvbpsi_atsc_GatherSTTSections(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, 0xCD, "ATSC STT decoder"))
{
......@@ -321,21 +316,19 @@ static void dvbpsi_atsc_GatherSTTSections(dvbpsi_t *p_dvbpsi,
}
/* */
dvbpsi_demux_t *p_demux = (dvbpsi_demux_t *) p_dvbpsi->p_decoder;
dvbpsi_atsc_stt_decoder_t *p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)p_decoder;
if (!p_stt_decoder)
dvbpsi_decoder_t *p_dec = dvbpsi_decoder_chain_get(p_dvbpsi, p_section->i_table_id, p_section->i_extension);
if (!p_dec)
{
dvbpsi_error(p_dvbpsi, "ATSC STT decoder", "No decoder specified");
dvbpsi_DeletePSISections(p_section);
return;
}
/* TS discontinuity check */
if (p_demux->b_discontinuity)
dvbpsi_atsc_stt_decoder_t *p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)p_dec;
if (p_stt_decoder->b_discontinuity)
{
dvbpsi_ReInitSTT(p_stt_decoder, true);
p_stt_decoder->b_discontinuity = false;
p_demux->b_discontinuity = false;
}
else
{
......
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