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gst/autodetect/gstautoaudiosink.*: Add property to filter sinks based on caps. Only select raw audio sinks by default...

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Original commit message from CVS:
Patch by: Tommi Myöhänen  <ext-tommi dot myohanen at nokia dot com>
* gst/autodetect/gstautoaudiosink.c:
(gst_auto_audio_sink_class_init), (gst_auto_audio_sink_dispose),
(gst_auto_audio_sink_init), (gst_auto_audio_sink_find_best),
(gst_auto_audio_sink_set_property),
(gst_auto_audio_sink_get_property):
* gst/autodetect/gstautoaudiosink.h:
Add property to filter sinks based on caps. Only select raw audio sinks
by default for backwards compat.  Fixes #417420.
API: GstAutoAudioSink::filter-caps
This commit is contained in:
Tommi Myöhänen 2007-12-05 16:02:15 +00:00 committed by Wim Taymans
parent 3a005c9579
commit 619ee506cf
3 changed files with 119 additions and 1 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2007-12-05 Wim Taymans <wim.taymans@gmail.com>
Patch by: Tommi Myöhänen <ext-tommi dot myohanen at nokia dot com>
* gst/autodetect/gstautoaudiosink.c:
(gst_auto_audio_sink_class_init), (gst_auto_audio_sink_dispose),
(gst_auto_audio_sink_init), (gst_auto_audio_sink_find_best),
(gst_auto_audio_sink_set_property),
(gst_auto_audio_sink_get_property):
* gst/autodetect/gstautoaudiosink.h:
Add property to filter sinks based on caps. Only select raw audio sinks
by default for backwards compat. Fixes #417420.
API: GstAutoAudioSink::filter-caps
2007-11-29 Michael Smith <msmith@fluendo.com>
Patch by: Arek Korbik <arkadini@gmail.com>

105
gst/autodetect/gstautoaudiosink.c
View file

@ -47,11 +47,22 @@
#include "gstautoaudiosink.h"
#include "gstautodetect.h"
/* Properties */
enum
{
PROP_0,
PROP_CAPS,
};
static GstStateChangeReturn
gst_auto_audio_sink_change_state (GstElement * element,
GstStateChange transition);
static void gst_auto_audio_sink_dispose (GstAutoAudioSink * sink);
static void gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink);
static void gst_auto_audio_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_auto_audio_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GST_BOILERPLATE (GstAutoAudioSink, gst_auto_audio_sink, GstBin, GST_TYPE_BIN);
@ -90,6 +101,26 @@ gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass)
gobject_class->dispose =
(GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_auto_audio_sink_dispose);
eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_audio_sink_change_state);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_auto_audio_sink_set_property);
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_auto_audio_sink_get_property);
/**
* GstAutoAudioSink:filter-caps
*
* This property will filter out candidate sinks that can handle the specified
* caps. By default only audio sinks that support raw floating point and
* integer audio are selected.
*
* This property can only be set before the element goes to the READY state.
*
* Since: 0.10.7
**/
g_object_class_install_property (gobject_class, PROP_CAPS,
g_param_spec_boxed ("filter-caps", "Filter caps",
"Filter sink candidates using these caps.", GST_TYPE_CAPS,
G_PARAM_READWRITE));
}
static void
@ -97,6 +128,10 @@ gst_auto_audio_sink_dispose (GstAutoAudioSink * sink)
{
gst_auto_audio_sink_clear_kid (sink);
if (sink->filter_caps)
gst_caps_unref (sink->filter_caps);
sink->filter_caps = NULL;
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
}
@ -114,7 +149,6 @@ gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink)
* Hack to make initial linking work; ideally, this'd work even when
* no target has been assigned to the ghostpad yet.
*/
static void
gst_auto_audio_sink_reset (GstAutoAudioSink * sink)
{
@ -132,6 +166,9 @@ gst_auto_audio_sink_reset (GstAutoAudioSink * sink)
gst_object_unref (targetpad);
}
static GstStaticCaps raw_caps =
GST_STATIC_CAPS ("audio/x-raw-int; audio/x-raw-float");
static void
gst_auto_audio_sink_init (GstAutoAudioSink * sink,
GstAutoAudioSinkClass * g_class)
@ -141,6 +178,10 @@ gst_auto_audio_sink_init (GstAutoAudioSink * sink,
gst_auto_audio_sink_reset (sink);
/* set the default raw audio caps */
sink->filter_caps = gst_static_caps_get (&raw_caps);
/* mark as sink */
GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_IS_SINK);
}
@ -208,6 +249,9 @@ gst_auto_audio_sink_find_best (GstAutoAudioSink * sink)
GstMessage *message = NULL;
GSList *errors = NULL;
GstBus *bus = gst_bus_new ();
GstPad *el_pad = NULL;
GstCaps *el_caps = NULL, *intersect = NULL;
gboolean no_match = TRUE;
list = gst_registry_feature_filter (gst_registry_get_default (),
(GstPluginFeatureFilter) gst_auto_audio_sink_factory_filter, FALSE, sink);
@ -226,6 +270,30 @@ gst_auto_audio_sink_find_best (GstAutoAudioSink * sink)
GstStateChangeReturn ret;
GST_DEBUG_OBJECT (sink, "Testing %s", GST_PLUGIN_FEATURE (f)->name);
/* If autoaudiosink has been provided with filter caps,
* accept only sinks that match with the filter caps */
if (sink->filter_caps) {
el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "sink");
el_caps = gst_pad_get_caps (el_pad);
gst_object_unref (el_pad);
GST_DEBUG_OBJECT (sink,
"Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
sink->filter_caps, el_caps);
intersect = gst_caps_intersect (sink->filter_caps, el_caps);
no_match = gst_caps_is_empty (intersect);
gst_caps_unref (el_caps);
gst_caps_unref (intersect);
if (no_match) {
GST_DEBUG_OBJECT (sink, "Incompatible caps");
gst_object_unref (el);
continue;
} else {
GST_DEBUG_OBJECT (sink, "Found compatible caps");
}
}
gst_element_set_bus (el, bus);
ret = gst_element_set_state (el, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_SUCCESS) {
@ -334,3 +402,38 @@ gst_auto_audio_sink_change_state (GstElement * element,
return ret;
}
static void
gst_auto_audio_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (object);
switch (prop_id) {
case PROP_CAPS:
if (sink->filter_caps)
gst_caps_unref (sink->filter_caps);
sink->filter_caps = gst_caps_copy (gst_value_get_caps (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_auto_audio_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (object);
switch (prop_id) {
case PROP_CAPS:{
gst_value_set_caps (value, sink->filter_caps);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}

1
gst/autodetect/gstautoaudiosink.h
View file

@ -43,6 +43,7 @@ typedef struct _GstAutoAudioSink {
/* explicit pointers to stuff used */
GstPad *pad;
GstElement *kid;
GstCaps *filter_caps;
} GstAutoAudioSink;
typedef struct _GstAutoAudioSinkClass {