static void
dvb_base_bin_pat_info_cb (DvbBaseBin * dvbbasebin, GstMpegtsSection * section)
{
GPtrArray *pat;
DvbBaseBinProgram *program;
DvbBaseBinStream *stream;
guint old_pmt_pid;
gint i;
gboolean rebuild_filter = FALSE;
if (!(pat = gst_mpegts_section_get_pat (section))) {
GST_WARNING_OBJECT (dvbbasebin, "got invalid PAT");
return;
}
for (i = 0; i < pat->len; i++) {
GstMpegtsPatProgram *patp = g_ptr_array_index (pat, i);
program = dvb_base_bin_get_program (dvbbasebin, patp->program_number);
if (program == NULL)
program = dvb_base_bin_add_program (dvbbasebin, patp->program_number);
old_pmt_pid = program->pmt_pid;
program->pmt_pid = patp->network_or_program_map_PID;
if (program->selected) {
/* PAT update */
if (old_pmt_pid != G_MAXUINT16 && old_pmt_pid != program->pmt_pid) {
dvb_base_bin_unref_stream (dvb_base_bin_get_stream (dvbbasebin,
old_pmt_pid));
}
stream = dvb_base_bin_get_stream (dvbbasebin, program->pmt_pid);
if (stream == NULL)
stream = dvb_base_bin_add_stream (dvbbasebin, program->pmt_pid);
dvb_base_bin_ref_stream (stream);
rebuild_filter = TRUE;
}
}
g_ptr_array_unref (pat);
if (rebuild_filter)
dvb_base_bin_rebuild_filter (dvbbasebin);
}
static void
dump_pat (GstMpegTsSection * section)
{
GPtrArray *pat = gst_mpegts_section_get_pat (section);
guint i, len;
len = pat->len;
g_printf (" %d program(s):\n", len);
for (i = 0; i < len; i++) {
GstMpegTsPatProgram *patp = g_ptr_array_index (pat, i);
g_print
(" program_number:%6d (0x%04x), network_or_program_map_PID:0x%04x\n",
patp->program_number, patp->program_number,
patp->network_or_program_map_PID);
}
g_ptr_array_unref (pat);
}
static void
dump_pat (GstMpegtsSection * section, ATS_METADATA* data)
{
GPtrArray *pat = gst_mpegts_section_get_pat (section);
guint i, len;
len = pat->len;
if ((data == NULL) || (data->prog_info != NULL)) return;
for (i = 0; i < len; i++) {
GstMpegtsPatProgram *patp = g_ptr_array_index (pat, i);
if (patp->program_number == 0) continue;
ATS_CH_DATA* tmpch = g_new(ATS_CH_DATA, 1);
tmpch->number = patp->program_number;
tmpch->xid = 0;
tmpch->pids_num = 0;
tmpch->to_be_analyzed = FALSE;
tmpch->provider_name = NULL;
tmpch->service_name = NULL;
data->prog_info = g_slist_append(data->prog_info, tmpch);
}
g_ptr_array_unref (pat);
}
static gboolean
mpegts_base_apply_pat (MpegTSBase * base, GstMpegtsSection * section)
{
GPtrArray *pat = gst_mpegts_section_get_pat (section);
GPtrArray *old_pat;
MpegTSBaseProgram *program;
gint i;
if (G_UNLIKELY (pat == NULL))
return FALSE;
GST_INFO_OBJECT (base, "PAT");
/* Applying a new PAT does two things:
* * It adds the new programs to the list of programs this element handles
* and increments at the same time the number of times a program is referenced.
*
* * If there was a previously active PAT, It decrements the reference count
* of all program it used. If a program is no longer needed, it is removed.
*/
old_pat = base->pat;
base->pat = pat;
GST_LOG ("Activating new Program Association Table");
/* activate the new table */
for (i = 0; i < pat->len; ++i) {
GstMpegtsPatProgram *patp = g_ptr_array_index (pat, i);
program = mpegts_base_get_program (base, patp->program_number);
if (program) {
/* IF the program already existed, just check if the PMT PID changed */
if (program->pmt_pid != patp->network_or_program_map_PID) {
if (program->pmt_pid != G_MAXUINT16) {
/* pmt pid changed */
/* FIXME: when this happens it may still be pmt pid of another
* program, so setting to False may make it go through expensive
* path in is_psi unnecessarily */
MPEGTS_BIT_UNSET (base->known_psi, program->pmt_pid);
}
program->pmt_pid = patp->network_or_program_map_PID;
if (G_UNLIKELY (MPEGTS_BIT_IS_SET (base->known_psi, program->pmt_pid)))
GST_FIXME
("Refcounting issue. Setting twice a PMT PID (0x%04x) as know PSI",
program->pmt_pid);
MPEGTS_BIT_SET (base->known_psi, patp->network_or_program_map_PID);
}
} else {
/* Create a new program */
program =
mpegts_base_add_program (base, patp->program_number,
patp->network_or_program_map_PID);
}
/* We mark this program as being referenced by one PAT */
program->patcount += 1;
}
if (old_pat) {
MpegTSBaseClass *klass = GST_MPEGTS_BASE_GET_CLASS (base);
/* deactivate the old table */
GST_LOG ("Deactivating old Program Association Table");
for (i = 0; i < old_pat->len; ++i) {
GstMpegtsPatProgram *patp = g_ptr_array_index (old_pat, i);
program = mpegts_base_get_program (base, patp->program_number);
if (G_UNLIKELY (program == NULL)) {
GST_DEBUG_OBJECT (base, "broken PAT, duplicated entry for program %d",
patp->program_number);
continue;
}
if (--program->patcount > 0)
/* the program has been referenced by the new pat, keep it */
continue;
GST_INFO_OBJECT (base, "PAT removing program 0x%04x 0x%04x",
patp->program_number, patp->network_or_program_map_PID);
if (klass->can_remove_program (base, program)) {
mpegts_base_deactivate_program (base, program);
mpegts_base_remove_program (base, patp->program_number);
}
/* FIXME: when this happens it may still be pmt pid of another
* program, so setting to False may make it go through expensive
* path in is_psi unnecessarily */
if (G_UNLIKELY (MPEGTS_BIT_IS_SET (base->known_psi,
patp->network_or_program_map_PID))) {
GST_FIXME
("Program refcounting : Setting twice a pid (0x%04x) as known PSI",
patp->network_or_program_map_PID);
}
MPEGTS_BIT_SET (base->known_psi, patp->network_or_program_map_PID);
mpegts_packetizer_remove_stream (base->packetizer,
patp->network_or_program_map_PID);
}
g_ptr_array_unref (old_pat);
}
return TRUE;
}
