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mpegtsparse: make safe changing the program-numbers property dynamically

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Fixes #569437.
This commit is contained in:
Vincent Genieux 2009-05-03 17:21:22 +01:00 committed by Zaheer Merali
parent c63fd7a123
commit 8ef8daf4db
2 changed files with 25 additions and 24 deletions
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48
gst/mpegdemux/mpegtsparse.c
View file

@ -266,9 +266,11 @@ mpegts_parse_init (MpegTSParse * parse, MpegTSParseClass * klass)
gst_element_add_pad (GST_ELEMENT (parse), parse->sinkpad);
parse->disposed = FALSE;
parse->need_sync_program_pads = FALSE;
parse->packetizer = mpegts_packetizer_new ();
parse->program_numbers = g_strdup ("");
parse->pads_to_add = NULL;
parse->pads_to_remove = NULL;
parse->programs = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, (GDestroyNotify) mpegts_parse_free_program);
parse->psi_pids = g_hash_table_new (g_direct_hash, g_direct_equal);
@ -422,22 +424,30 @@ mpegts_parse_remove_program (MpegTSParse * parse, gint program_number)
}
static void
mpegts_parse_sync_program_pads (MpegTSParse * parse,
GList * to_add, GList * to_remove)
mpegts_parse_sync_program_pads (MpegTSParse * parse)
{
GList *walk;
for (walk = to_remove; walk; walk = walk->next)
GST_INFO_OBJECT (parse, "begin sync pads");
for (walk = parse->pads_to_remove; walk; walk = walk->next)
gst_element_remove_pad (GST_ELEMENT (parse), GST_PAD (walk->data));
for (walk = to_add; walk; walk = walk->next)
for (walk = parse->pads_to_add; walk; walk = walk->next)
gst_element_add_pad (GST_ELEMENT (parse), GST_PAD (walk->data));
if (to_add)
g_list_free (to_add);
if (parse->pads_to_add)
g_list_free (parse->pads_to_add);
if (to_remove)
g_list_free (to_remove);
if (parse->pads_to_remove)
g_list_free (parse->pads_to_remove);
GST_OBJECT_LOCK (parse);
parse->pads_to_remove = NULL;
parse->pads_to_add = NULL;
parse->need_sync_program_pads = FALSE;
GST_OBJECT_UNLOCK (parse);
GST_INFO_OBJECT (parse, "end sync pads");
}
@ -493,9 +503,6 @@ static void
mpegts_parse_reset_selected_programs (MpegTSParse * parse,
gchar * program_numbers)
{
GList *pads_to_add = NULL;
GList *pads_to_remove = NULL;
GST_OBJECT_LOCK (parse);
if (parse->program_numbers)
g_free (parse->program_numbers);
@ -526,13 +533,9 @@ mpegts_parse_reset_selected_programs (MpegTSParse * parse,
g_hash_table_foreach (parse->programs,
foreach_program_activate_or_deactivate, parse);
pads_to_add = parse->pads_to_add;
parse->pads_to_add = NULL;
pads_to_remove = parse->pads_to_remove;
parse->pads_to_remove = NULL;
if (parse->pads_to_remove || parse->pads_to_add)
parse->need_sync_program_pads = TRUE;
GST_OBJECT_UNLOCK (parse);
mpegts_parse_sync_program_pads (parse, pads_to_add, pads_to_remove);
}
static void
@ -850,8 +853,6 @@ mpegts_parse_apply_pat (MpegTSParse * parse, GstStructure * pat_info)
guint pid;
MpegTSParseProgram *program;
gint i;
GList *pads_to_add = NULL;
GList *pads_to_remove = NULL;
const GValue *programs;
gchar *dbg;
@ -942,13 +943,9 @@ mpegts_parse_apply_pat (MpegTSParse * parse, GstStructure * pat_info)
gst_structure_free (old_pat);
}
pads_to_add = parse->pads_to_add;
parse->pads_to_add = NULL;
pads_to_remove = parse->pads_to_remove;
parse->pads_to_remove = NULL;
GST_OBJECT_UNLOCK (parse);
mpegts_parse_sync_program_pads (parse, pads_to_add, pads_to_remove);
mpegts_parse_sync_program_pads (parse);
}
static void
@ -1226,6 +1223,9 @@ mpegts_parse_chain (GstPad * pad, GstBuffer * buf)
mpegts_packetizer_clear_packet (parse->packetizer, &packet);
}
if (parse->need_sync_program_pads)
mpegts_parse_sync_program_pads (parse);
gst_object_unref (parse);
return res;
}

1
gst/mpegdemux/mpegtsparse.h
View file

@ -61,6 +61,7 @@ struct _MpegTSParse {
MpegTSPacketizer *packetizer;
GHashTable *psi_pids;
gboolean disposed;
gboolean need_sync_program_pads;
};
struct _MpegTSParseClass {