From 9d8a7aa18ffb703ea942b16f4068a7e17548d65c Mon Sep 17 00:00:00 2001 From: Zaheer Abbas Merali Date: Tue, 5 Feb 2008 12:19:46 +0000 Subject: gst/mpegtsparse/mpegtsparse.c: Handle latency queries in src pads. Original commit message from CVS: * gst/mpegtsparse/mpegtsparse.c: Handle latency queries in src pads. --- gst/mpegtsparse/mpegtsparse.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'gst') diff --git a/gst/mpegtsparse/mpegtsparse.c b/gst/mpegtsparse/mpegtsparse.c index c780876c..bf05d3cc 100644 --- a/gst/mpegtsparse/mpegtsparse.c +++ b/gst/mpegtsparse/mpegtsparse.c @@ -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) { -- cgit v1.2.1