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gstvdpvideosrcpad: add "template-caps" property

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The property limits the available output caps
This commit is contained in:
Carl-Anton Ingmarsson 2009-11-22 22:24:12 +01:00
parent 65bc7c87b2
commit a71cf4dfb2
3 changed files with 57 additions and 24 deletions
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12
sys/vdpau/gstvdpmpegdec.c
View file

@ -1085,7 +1085,7 @@ gst_vdp_mpeg_dec_base_init (gpointer gclass)
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
src_caps = gst_vdp_video_src_pad_get_template_caps ();
src_caps = gst_vdp_video_buffer_get_caps (TRUE, VDP_CHROMA_TYPE_420);
src_template = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
src_caps);
@ -1133,7 +1133,15 @@ gst_vdp_mpeg_dec_init_info (VdpPictureInfoMPEG1Or2 * vdp_info)
static void
gst_vdp_mpeg_dec_init (GstVdpMpegDec * mpeg_dec, GstVdpMpegDecClass * gclass)
{
mpeg_dec->src = GST_PAD (gst_vdp_video_src_pad_new ());
GstPadTemplate *src_template;
/* SRC PAD */
src_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (gclass), "src");
mpeg_dec->src =
GST_PAD (gst_vdp_video_src_pad_new (gst_pad_template_get_caps
(src_template)));
gst_pad_set_event_function (mpeg_dec->src,
GST_DEBUG_FUNCPTR (gst_vdp_mpeg_dec_src_event));
gst_pad_set_query_function (mpeg_dec->src,

66
sys/vdpau/gstvdpvideosrcpad.c
View file

@ -28,7 +28,8 @@ GST_DEBUG_CATEGORY_STATIC (gst_vdp_video_src_pad_debug);
enum
{
PROP_0,
PROP_DISPLAY
PROP_DISPLAY,
PROP_TEMPL_CAPS
};
#define DEBUG_INIT(bla) \
@ -73,8 +74,10 @@ gst_vdp_video_src_pad_push (GstVdpVideoSrcPad * vdp_pad,
}
if (!gst_caps_is_equal_fixed (caps, GST_BUFFER_CAPS (out_buf))) {
GST_ERROR_OBJECT (vdp_pad, "Couldn't calculate buffer size for caps");
GST_ERROR_OBJECT (vdp_pad,
"Sink element allocated buffer with different caps");
gst_buffer_unref (GST_BUFFER_CAST (video_buf));
gst_buffer_unref (out_buf);
return GST_FLOW_ERROR;
}
@ -83,7 +86,8 @@ gst_vdp_video_src_pad_push (GstVdpVideoSrcPad * vdp_pad,
GST_ERROR_OBJECT (vdp_pad,
"Couldn't convert from GstVdpVideoBuffer to the requested format");
gst_buffer_unref (GST_BUFFER_CAST (video_buf));
gst_buffer_unref (GST_BUFFER_CAST (out_buf));
gst_buffer_unref (out_buf);
return GST_FLOW_ERROR;
}
gst_buffer_copy_metadata (out_buf, (const GstBuffer *) video_buf,
@ -100,17 +104,21 @@ gst_vdp_video_src_pad_push (GstVdpVideoSrcPad * vdp_pad,
static void
gst_vdp_video_src_pad_update_caps (GstVdpVideoSrcPad * vdp_pad)
{
GstCaps *yuv_caps, *video_caps, *caps;
GstCaps *yuv_caps, *video_caps;
video_caps = gst_vdp_video_buffer_get_allowed_video_caps (vdp_pad->device);
yuv_caps = gst_vdp_video_buffer_get_allowed_yuv_caps (vdp_pad->device);
gst_caps_append (video_caps, yuv_caps);
caps = gst_caps_intersect (video_caps, vdp_pad->caps);
gst_caps_unref (video_caps);
gst_caps_unref (vdp_pad->caps);
vdp_pad->caps = caps;
if (vdp_pad->caps)
gst_caps_unref (vdp_pad->caps);
if (vdp_pad->templ_caps) {
vdp_pad->caps = gst_caps_intersect (video_caps, vdp_pad->templ_caps);
gst_caps_unref (video_caps);
} else
vdp_pad->caps = video_caps;
}
GstFlowReturn
@ -219,18 +227,17 @@ gst_vdp_video_src_pad_get_device (GstVdpVideoSrcPad * vdp_pad)
return vdp_pad->device;
}
GstCaps *
gst_vdp_video_src_pad_get_template_caps ()
{
return gst_vdp_video_buffer_get_caps (TRUE, VDP_CHROMA_TYPE_420);
}
static GstCaps *
gst_vdp_video_src_pad_getcaps (GstPad * pad)
{
GstVdpVideoSrcPad *vdp_pad = (GstVdpVideoSrcPad *) pad;
return gst_caps_ref (vdp_pad->caps);
if (vdp_pad->caps)
return gst_caps_ref (vdp_pad->caps);
else if (vdp_pad->templ_caps)
return gst_caps_ref (vdp_pad->templ_caps);
return NULL;
}
static gboolean
@ -243,18 +250,19 @@ gst_vdp_video_src_pad_activate_push (GstPad * pad, gboolean active)
g_object_unref (vdp_pad->device);
vdp_pad->device = NULL;
gst_caps_unref (vdp_pad->caps);
vdp_pad->caps = gst_vdp_video_buffer_get_caps (TRUE, VDP_CHROMA_TYPE_420);
if (vdp_pad->caps)
gst_caps_unref (vdp_pad->caps);
vdp_pad->caps = NULL;
}
return TRUE;
}
GstVdpVideoSrcPad *
gst_vdp_video_src_pad_new ()
gst_vdp_video_src_pad_new (GstCaps * templ_caps)
{
return g_object_new (GST_TYPE_VDP_VIDEO_SRC_PAD, "direction", GST_PAD_SRC,
NULL);
"template-caps", templ_caps, NULL);
}
static void
@ -267,6 +275,9 @@ gst_vdp_video_src_pad_get_property (GObject * object, guint prop_id,
case PROP_DISPLAY:
g_value_set_string (value, vdp_pad->display);
break;
case PROP_TEMPL_CAPS:
gst_value_set_caps (value, vdp_pad->templ_caps);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -283,6 +294,11 @@ gst_vdp_video_src_pad_set_property (GObject * object, guint prop_id,
case PROP_DISPLAY:
vdp_pad->display = g_value_dup_string (value);
break;
case PROP_TEMPL_CAPS:
if (vdp_pad->templ_caps)
gst_caps_unref (vdp_pad->templ_caps);
vdp_pad->templ_caps = gst_caps_copy (gst_value_get_caps (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -295,6 +311,8 @@ gst_vdp_video_src_pad_finalize (GObject * object)
GstVdpVideoSrcPad *vdp_pad = (GstVdpVideoSrcPad *) object;
g_free (vdp_pad->display);
if (vdp_pad->templ_caps)
gst_caps_unref (vdp_pad->templ_caps);
G_OBJECT_CLASS (gst_vdp_video_src_pad_parent_class)->finalize (object);
}
@ -305,9 +323,10 @@ gst_vdp_video_src_pad_init (GstVdpVideoSrcPad * vdp_pad)
GstPad *pad = GST_PAD (vdp_pad);
vdp_pad->device = NULL;
vdp_pad->display = NULL;
vdp_pad->caps = NULL;
vdp_pad->caps = gst_vdp_video_buffer_get_caps (TRUE, VDP_CHROMA_TYPE_420);
vdp_pad->display = NULL;
vdp_pad->templ_caps = NULL;
gst_pad_set_getcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_video_src_pad_getcaps));
@ -328,4 +347,9 @@ gst_vdp_video_src_pad_class_init (GstVdpVideoSrcPadClass * klass)
g_param_spec_string ("display", "Display", "X Display name",
NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_TEMPL_CAPS,
g_param_spec_boxed ("template-caps", "Template caps",
"Template caps", GST_TYPE_CAPS,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
}

3
sys/vdpau/gstvdpvideosrcpad.h
View file

@ -51,6 +51,7 @@ struct _GstVdpVideoSrcPad
/* properties */
gchar *display;
GstCaps *templ_caps;
};
struct _GstVdpVideoSrcPadClass
@ -67,7 +68,7 @@ gboolean gst_vdp_video_src_pad_set_caps (GstVdpVideoSrcPad *vdp_pad, GstCaps *ca
GstCaps *gst_vdp_video_src_pad_get_template_caps ();
GstVdpVideoSrcPad *gst_vdp_video_src_pad_new ();
GstVdpVideoSrcPad *gst_vdp_video_src_pad_new (GstCaps *templ_caps);
GType gst_vdp_video_src_pad_get_type (void) G_GNUC_CONST;
G_END_DECLS