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glmixer: allow the subclass to choose the sink pad type

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Allows custom properties to be placed on the sink pads by subclasses
This commit is contained in:
Matthew Waters 2014-06-15 12:24:38 +10:00 committed by Tim-Philipp Müller
parent e7cc498fb6
commit a656e76ac9
2 changed files with 36 additions and 8 deletions
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36
gst-libs/gst/gl/gstglmixer.c
View file

@ -756,6 +756,7 @@ gst_gl_mixer_init (GstGLMixer * mix)
mix->display = NULL;
mix->fbo = 0;
mix->depthbuffer = 0;
mix->pad_type = GST_TYPE_GL_MIXER_PAD;
mix->frames = g_ptr_array_new_full (4, _free_pad_frame_data);
mix->array_buffers = g_ptr_array_new_full (4, NULL);
@ -1363,6 +1364,26 @@ done:
return ret;
}
/**
* gst_gl_mixer_set_pad_type:
* @mix: a #GstGLMixer
* @pad_type: a #GstPad type subclass
*
* Set the pad type that will be created in the request_new_pad vfunc.
*
* Intended only for derived classes of #GstGLMixer.
*/
void
gst_gl_mixer_set_pad_type (GstGLMixer * mix, GType pad_type)
{
g_return_if_fail (GST_IS_GL_MIXER (mix));
g_return_if_fail (g_type_is_a (pad_type, GST_TYPE_GL_MIXER_PAD));
GST_GL_MIXER_LOCK (mix);
mix->pad_type = pad_type;
GST_GL_MIXER_UNLOCK (mix);
}
static GstPad *
gst_gl_mixer_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
@ -1392,7 +1413,7 @@ gst_gl_mixer_request_new_pad (GstElement * element,
}
/* create new pad with the name */
name = g_strdup_printf ("sink_%d", serial);
mixpad = g_object_new (GST_TYPE_GL_MIXER_PAD, "name", name, "direction",
mixpad = g_object_new (mix->pad_type, "name", name, "direction",
templ->direction, "template", templ, NULL);
g_free (name);
@ -1412,13 +1433,6 @@ gst_gl_mixer_request_new_pad (GstElement * element,
mix->sinkpads = g_slist_append (mix->sinkpads, mixpad);
mix->numpads++;
GST_DEBUG_OBJECT (element, "Adding pad %s", GST_PAD_NAME (mixpad));
/* add the pad to the element */
gst_element_add_pad (element, GST_PAD (mixpad));
gst_child_proxy_child_added (GST_CHILD_PROXY (mix), G_OBJECT (mixpad),
GST_OBJECT_NAME (mixpad));
g_ptr_array_set_size (mix->array_buffers, mix->numpads);
g_ptr_array_set_size (mix->frames, mix->numpads);
@ -1426,6 +1440,12 @@ gst_gl_mixer_request_new_pad (GstElement * element,
GST_GL_MIXER_UNLOCK (mix);
/* add the pad to the element */
GST_DEBUG_OBJECT (element, "Adding pad %s", GST_PAD_NAME (mixpad));
gst_element_add_pad (element, GST_PAD (mixpad));
gst_child_proxy_child_added (GST_CHILD_PROXY (mix), G_OBJECT (mixpad),
GST_OBJECT_NAME (mixpad));
return GST_PAD (mixpad);
}

8
gst-libs/gst/gl/gstglmixer.h
View file

@ -40,6 +40,10 @@ G_BEGIN_DECLS
#define GST_GL_MIXER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_MIXER,GstGLMixerClass))
#define GST_GL_MIXER_GET_LOCK(mix) (GST_GL_MIXER(mix)->lock)
#define GST_GL_MIXER_LOCK(mix) (g_mutex_lock(&GST_GL_MIXER_GET_LOCK (mix)))
#define GST_GL_MIXER_UNLOCK(mix) (g_mutex_unlock(&GST_GL_MIXER_GET_LOCK (mix)))
typedef struct _GstGLMixer GstGLMixer;
typedef struct _GstGLMixerClass GstGLMixerClass;
typedef struct _GstGLMixerPrivate GstGLMixerPrivate;
@ -99,6 +103,8 @@ struct _GstGLMixer
GstGLContext *context;
GLuint fbo;
GLuint depthbuffer;
GType pad_type;
};
struct _GstGLMixerClass
@ -121,5 +127,7 @@ GType gst_gl_mixer_get_type(void);
gboolean gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf);
void gst_gl_mixer_set_pad_type (GstGLMixer * mix, GType pad_type);
G_END_DECLS
#endif /* __GST_GL_MIXER_H__ */