static void
mpegts_parse_reset_selected_programs (MpegTSParse2 * parse,
gchar * program_numbers)
{
GST_OBJECT_LOCK (parse);
if (parse->program_numbers)
g_free (parse->program_numbers);
parse->program_numbers = program_numbers;
if (*parse->program_numbers != '\0') {
gint program_number;
MpegTSParseProgram *program;
gchar **progs, **walk;
progs = g_strsplit (parse->program_numbers, ":", 0);
walk = progs;
while (*walk != NULL) {
program_number = strtol (*walk, NULL, 0);
program =
(MpegTSParseProgram *) mpegts_base_get_program ((MpegTSBase *) parse,
program_number);
if (program == NULL)
/* create the program, it will get activated once we get a PMT for it */
program = (MpegTSParseProgram *) mpegts_base_add_program ((MpegTSBase *)
parse, program_number, G_MAXUINT16);
program->selected = 2;
++walk;
}
g_strfreev (progs);
}
g_hash_table_foreach (((MpegTSBase *) parse)->programs,
foreach_program_activate_or_deactivate, parse);
if (parse->pads_to_remove || parse->pads_to_add)
parse->need_sync_program_pads = TRUE;
GST_OBJECT_UNLOCK (parse);
}
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;
}
