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gst/mpegtsparse/mpegtsparse.c: Handle latency queries in src pads.

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Original commit message from CVS:
* gst/mpegtsparse/mpegtsparse.c:
Handle latency queries in src pads.
This commit is contained in:
Zaheer Abbas Merali 2008-02-05 12:19:46 +00:00
parent ed4368e08f
commit 9d8a7aa18f
2 changed files with 43 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2008-02-05 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/mpegtsparse/mpegtsparse.c:
Handle latency queries in src pads.
2008-02-05 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/mpegtsparse/mpegtspacketizer.c:

38
gst/mpegtsparse/mpegtsparse.c
View file

@ -29,6 +29,9 @@
#include "mpegtsparse.h"
/* latency in mseconds */
#define TS_LATENCY 700
GST_DEBUG_CATEGORY_STATIC (mpegts_parse_debug);
#define GST_CAT_DEFAULT mpegts_parse_debug
@ -125,6 +128,7 @@ static GstFlowReturn mpegts_parse_chain (GstPad * pad, GstBuffer * buf);
static gboolean mpegts_parse_sink_event (GstPad * pad, GstEvent * event);
static GstStateChangeReturn mpegts_parse_change_state (GstElement * element,
GstStateChange transition);
static gboolean mpegts_parse_src_pad_query (GstPad * pad, GstQuery * query);
GST_BOILERPLATE (MpegTSParse, mpegts_parse, GstElement, GST_TYPE_ELEMENT);
@ -553,6 +557,8 @@ mpegts_parse_create_tspad (MpegTSParse * parse, const gchar * pad_name)
MpegTSParsePad *tspad;
pad = gst_pad_new_from_static_template (&program_template, pad_name);
gst_pad_set_query_function (pad,
GST_DEBUG_FUNCPTR (mpegts_parse_src_pad_query));
/* create our wrapper */
tspad = g_new0 (MpegTSParsePad, 1);
@ -1156,6 +1162,38 @@ mpegts_parse_change_state (GstElement * element, GstStateChange transition)
return ret;
}
static gboolean
mpegts_parse_src_pad_query (GstPad * pad, GstQuery * query)
{
MpegTSParse *parse = GST_MPEGTS_PARSE (gst_pad_get_parent (pad));
gboolean res;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
if ((res = gst_pad_peer_query (parse->sinkpad, query))) {
gboolean is_live;
GstClockTime min_latency, max_latency;
gst_query_parse_latency (query, &is_live, &min_latency, &max_latency);
if (is_live) {
min_latency += TS_LATENCY * GST_MSECOND;
if (max_latency != GST_CLOCK_TIME_NONE)
max_latency += TS_LATENCY * GST_MSECOND;
}
gst_query_set_latency (query, is_live, min_latency, max_latency);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
}
return res;
}
static gboolean
plugin_init (GstPlugin * plugin)
{