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playback: Register playsink as an element.

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This allows using playsink from outside the playback plugin.

Add code to be able to request the sink pads using standard GStreamer API.

TODO : expose GObject properties/signals.
This commit is contained in:
Edward Hervey 2009-09-08 11:35:20 +02:00
parent f00b79fc65
commit 02c50388c4
3 changed files with 124 additions and 6 deletions
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2
gst/playback/gstplayback.c
View file

@ -29,6 +29,7 @@
#include "gststreamselector.h"
#include "gststreaminfo.h"
#include "gstplaysink.h"
gboolean gst_play_bin_plugin_init (GstPlugin * plugin);
gboolean gst_play_bin2_plugin_init (GstPlugin * plugin);
@ -54,6 +55,7 @@ plugin_init (GstPlugin * plugin)
res = gst_play_bin_plugin_init (plugin);
res &= gst_play_bin2_plugin_init (plugin);
res &= gst_play_sink_plugin_init (plugin);
return res;
}

126
gst/playback/gstplaysink.c
View file

@ -171,6 +171,37 @@ struct _GstPlaySinkClass
GstBinClass parent_class;
};
static GstStaticPadTemplate audiorawtemplate =
GST_STATIC_PAD_TEMPLATE ("audio_raw_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate audiotemplate =
GST_STATIC_PAD_TEMPLATE ("audio_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate videorawtemplate =
GST_STATIC_PAD_TEMPLATE ("video_raw_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate videotemplate =
GST_STATIC_PAD_TEMPLATE ("video_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate texttemplate = GST_STATIC_PAD_TEMPLATE ("text_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate subpictemplate =
GST_STATIC_PAD_TEMPLATE ("subpic_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
/* props */
enum
@ -190,6 +221,10 @@ static void gst_play_sink_init (GstPlaySink * playsink);
static void gst_play_sink_dispose (GObject * object);
static void gst_play_sink_finalize (GObject * object);
static GstPad *gst_play_sink_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name);
static void gst_play_sink_release_request_pad (GstElement * element,
GstPad * pad);
static gboolean gst_play_sink_send_event (GstElement * element,
GstEvent * event);
static GstStateChangeReturn gst_play_sink_change_state (GstElement * element,
@ -201,8 +236,8 @@ static void gst_play_sink_handle_message (GstBin * bin, GstMessage * message);
static const GstElementDetails gst_play_sink_details =
GST_ELEMENT_DETAILS ("Player Sink",
"Generic/Bin/Player",
"Autoplug and play media from an uri",
"Generic/Bin/Sink",
"Convenience sink for multiple streams",
"Wim Taymans <wim.taymans@gmail.com>");
G_DEFINE_TYPE (GstPlaySink, gst_play_sink, GST_TYPE_BIN);
@ -221,16 +256,30 @@ gst_play_sink_class_init (GstPlaySinkClass * klass)
gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_play_sink_dispose);
gobject_klass->finalize = GST_DEBUG_FUNCPTR (gst_play_sink_finalize);
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&audiorawtemplate));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&audiotemplate));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&videorawtemplate));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&videotemplate));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&texttemplate));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&subpictemplate));
gst_element_class_set_details (gstelement_klass, &gst_play_sink_details);
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_play_sink_change_state);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_sink_send_event);
gstelement_klass->request_new_pad =
GST_DEBUG_FUNCPTR (gst_play_sink_request_new_pad);
gstelement_klass->release_pad =
GST_DEBUG_FUNCPTR (gst_play_sink_release_request_pad);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_sink_handle_message);
GST_DEBUG_CATEGORY_INIT (gst_play_sink_debug, "playsink", 0, "play bin");
}
static void
@ -2207,14 +2256,18 @@ gst_play_sink_request_pad (GstPlaySink * playsink, GstPlaySinkType type)
gboolean created = FALSE;
gboolean raw = FALSE;
gboolean activate = TRUE;
const gchar *pad_name = NULL;
GST_DEBUG_OBJECT (playsink, "request pad type %d", type);
GST_PLAY_SINK_LOCK (playsink);
switch (type) {
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
pad_name = "audio_raw_sink";
raw = TRUE;
case GST_PLAY_SINK_TYPE_AUDIO:
if (pad_name == NULL)
pad_name = "audio_sink";
if (!playsink->audio_tee) {
GST_LOG_OBJECT (playsink, "creating tee");
/* create tee when needed. This element will feed the audio sink chain
@ -2230,19 +2283,22 @@ gst_play_sink_request_pad (GstPlaySink * playsink, GstPlaySinkType type)
if (!playsink->audio_pad) {
GST_LOG_OBJECT (playsink, "ghosting tee sinkpad");
playsink->audio_pad =
gst_ghost_pad_new ("audio_sink", playsink->audio_tee_sink);
gst_ghost_pad_new (pad_name, playsink->audio_tee_sink);
created = TRUE;
}
playsink->audio_pad_raw = raw;
res = playsink->audio_pad;
break;
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
pad_name = "video_raw_sink";
raw = TRUE;
case GST_PLAY_SINK_TYPE_VIDEO:
if (pad_name == NULL)
pad_name = "video_sink";
if (!playsink->video_pad) {
GST_LOG_OBJECT (playsink, "ghosting videosink");
playsink->video_pad =
gst_ghost_pad_new_no_target ("video_sink", GST_PAD_SINK);
gst_ghost_pad_new_no_target (pad_name, GST_PAD_SINK);
created = TRUE;
}
playsink->video_pad_raw = raw;
@ -2297,6 +2353,48 @@ gst_play_sink_request_pad (GstPlaySink * playsink, GstPlaySinkType type)
return res;
}
static GstPad *
gst_play_sink_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name)
{
GstPlaySink *psink;
GstPad *pad;
GstElementClass *klass;
GstPlaySinkType type;
const gchar *tplname;
g_return_val_if_fail (templ != NULL, NULL);
GST_DEBUG_OBJECT (element, "name:%s", name);
psink = GST_PLAY_SINK (element);
klass = GST_ELEMENT_GET_CLASS (element);
tplname = GST_PAD_TEMPLATE_NAME_TEMPLATE (templ);
/* Figure out the GstPlaySinkType based on the template */
if (!strcmp (tplname, "audio_sink"))
type = GST_PLAY_SINK_TYPE_AUDIO;
else if (!strcmp (tplname, "aduio_raw_sink"))
type = GST_PLAY_SINK_TYPE_AUDIO_RAW;
else if (!strcmp (tplname, "video_sink"))
type = GST_PLAY_SINK_TYPE_VIDEO;
else if (!strcmp (tplname, "video_raw_sink"))
type = GST_PLAY_SINK_TYPE_VIDEO_RAW;
else if (!strcmp (tplname, "text_sink"))
type = GST_PLAY_SINK_TYPE_TEXT;
else if (!strcmp (tplname, "subpicsink"))
type = GST_PLAY_SINK_TYPE_SUBPIC;
else
goto unknown_template;
pad = gst_play_sink_request_pad (psink, type);
return pad;
unknown_template:
GST_WARNING_OBJECT (element, "Unknown pad template");
return NULL;
}
void
gst_play_sink_release_pad (GstPlaySink * playsink, GstPad * pad)
{
@ -2333,6 +2431,13 @@ gst_play_sink_release_pad (GstPlaySink * playsink, GstPad * pad)
*res = NULL;
}
}
static void
gst_play_sink_release_request_pad (GstElement * element, GstPad * pad)
{
GstPlaySink *psink = GST_PLAY_SINK (element);
gst_play_sink_release_pad (psink, pad);
}
static void
gst_play_sink_handle_message (GstBin * bin, GstMessage * message)
@ -2577,3 +2682,12 @@ activate_failed:
return GST_STATE_CHANGE_FAILURE;
}
}
gboolean
gst_play_sink_plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_play_sink_debug, "playsink", 0, "play bin");
return gst_element_register (plugin, "playsink", GST_RANK_NONE,
GST_TYPE_PLAY_SINK);
}

2
gst/playback/gstplaysink.h
View file

@ -95,6 +95,8 @@ GstBuffer * gst_play_sink_get_last_frame (GstPlaySink * playsink);
gboolean gst_play_sink_reconfigure (GstPlaySink * playsink);
gboolean gst_play_sink_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_PLAY_SINK_H__ */