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gst/videorate/gstvideorate.c: Use boilerplate.

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Original commit message from CVS:
* gst/videorate/gstvideorate.c: (gst_video_rate_init),
(gst_video_rate_query):
Use boilerplate.
Add latency query, might not be perfect yet but already works a lot
better. Fixes #442557.
This commit is contained in:
Wim Taymans 2007-07-13 18:12:19 +00:00
parent 476361497d
commit e59c110631
3 changed files with 71 additions and 34 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2007-07-13 Wim Taymans <wim.taymans@gmail.com>
* gst/videorate/gstvideorate.c: (gst_video_rate_init),
(gst_video_rate_query):
Use boilerplate.
Add latency query, might not be perfect yet but already works a lot
better. Fixes #442557.
2007-07-13 Jan Schmidt <thaytan@mad.scientist.com>
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_xvimage_put),

2
common

@ -1 +1 @@
Subproject commit 5167bced491ffe62251c62d6c5e7b9a7541e97e5
Subproject commit fb4b30ebbec59a8944cacae5fb5cf40bff5dfcaa

95
gst/videorate/gstvideorate.c
View file

@ -130,13 +130,10 @@ static GstStaticPadTemplate gst_video_rate_sink_template =
GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb")
);
static void gst_video_rate_base_init (gpointer g_class);
static void gst_video_rate_class_init (GstVideoRateClass * klass);
static void gst_video_rate_init (GstVideoRate * videorate);
static void gst_video_rate_swap_prev (GstVideoRate * videorate,
GstBuffer * buffer, gint64 time);
static gboolean gst_video_rate_event (GstPad * pad, GstEvent * event);
static gboolean gst_video_rate_query (GstPad * pad, GstQuery * query);
static GstFlowReturn gst_video_rate_chain (GstPad * pad, GstBuffer * buffer);
static void gst_video_rate_set_property (GObject * object,
@ -147,34 +144,9 @@ static void gst_video_rate_get_property (GObject * object,
static GstStateChangeReturn gst_video_rate_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
/*static guint gst_video_rate_signals[LAST_SIGNAL] = { 0 }; */
static GType
gst_video_rate_get_type (void)
{
static GType video_rate_type = 0;
if (!video_rate_type) {
static const GTypeInfo video_rate_info = {
sizeof (GstVideoRateClass),
gst_video_rate_base_init,
NULL,
(GClassInitFunc) gst_video_rate_class_init,
NULL,
NULL,
sizeof (GstVideoRate),
0,
(GInstanceInitFunc) gst_video_rate_init,
};
video_rate_type = g_type_register_static (GST_TYPE_ELEMENT,
"GstVideoRate", &video_rate_info, 0);
}
return video_rate_type;
}
GST_BOILERPLATE (GstVideoRate, gst_video_rate, GstElement, GST_TYPE_ELEMENT);
static void
gst_video_rate_base_init (gpointer g_class)
@ -399,22 +371,23 @@ gst_video_rate_reset (GstVideoRate * videorate)
}
static void
gst_video_rate_init (GstVideoRate * videorate)
gst_video_rate_init (GstVideoRate * videorate, GstVideoRateClass * klass)
{
GST_DEBUG ("gst_video_rate_init");
videorate->sinkpad =
gst_pad_new_from_static_template (&gst_video_rate_sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (videorate), videorate->sinkpad);
gst_pad_set_event_function (videorate->sinkpad, gst_video_rate_event);
gst_pad_set_chain_function (videorate->sinkpad, gst_video_rate_chain);
gst_pad_set_getcaps_function (videorate->sinkpad, gst_video_rate_getcaps);
gst_pad_set_setcaps_function (videorate->sinkpad, gst_video_rate_setcaps);
gst_element_add_pad (GST_ELEMENT (videorate), videorate->sinkpad);
videorate->srcpad =
gst_pad_new_from_static_template (&gst_video_rate_src_template, "src");
gst_element_add_pad (GST_ELEMENT (videorate), videorate->srcpad);
gst_pad_set_query_function (videorate->srcpad, gst_video_rate_query);
gst_pad_set_getcaps_function (videorate->srcpad, gst_video_rate_getcaps);
gst_pad_set_setcaps_function (videorate->srcpad, gst_video_rate_setcaps);
gst_element_add_pad (GST_ELEMENT (videorate), videorate->srcpad);
gst_video_rate_reset (videorate);
videorate->silent = DEFAULT_SILENT;
@ -553,6 +526,62 @@ format_error:
}
}
static gboolean
gst_video_rate_query (GstPad * pad, GstQuery * query)
{
GstVideoRate *videorate;
gboolean res = FALSE;
videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
guint64 latency;
GstPad *peer;
if ((peer = gst_pad_get_peer (videorate->sinkpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG_OBJECT (videorate, "Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
/* add latency. We don't really know since we hold on to the frames
* until we get a next frame, which can be anything. We assume
* however that this will take from_rate time. */
latency = gst_util_uint64_scale (GST_SECOND,
videorate->from_rate_denominator, videorate->from_rate_numerator);
GST_DEBUG_OBJECT (videorate, "Our latency: %"
GST_TIME_FORMAT, latency);
min += latency;
if (max != -1)
max += latency;
GST_DEBUG_OBJECT (videorate, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (videorate);
return res;
}
static GstFlowReturn
gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
{