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combdetect: output progressive video

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This commit is contained in:
David Schleef 2013-03-19 12:19:27 -07:00
parent 16091ef422
commit db40edff17
1 changed files with 51 additions and 0 deletions
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51
gst/ivtc/gstcombdetect.c
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@ -56,6 +56,8 @@ static void gst_comb_detect_get_property (GObject * object,
static void gst_comb_detect_dispose (GObject * object);
static void gst_comb_detect_finalize (GObject * object);
static GstCaps *gst_comb_detect_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_comb_detect_start (GstBaseTransform * trans);
static gboolean gst_comb_detect_stop (GstBaseTransform * trans);
static gboolean gst_comb_detect_set_info (GstVideoFilter * filter,
@ -124,6 +126,8 @@ gst_comb_detect_class_init (GstCombDetectClass * klass)
gobject_class->get_property = gst_comb_detect_get_property;
gobject_class->dispose = gst_comb_detect_dispose;
gobject_class->finalize = gst_comb_detect_finalize;
base_transform_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_comb_detect_transform_caps);
base_transform_class->start = GST_DEBUG_FUNCPTR (gst_comb_detect_start);
base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_comb_detect_stop);
video_filter_class->set_info = GST_DEBUG_FUNCPTR (gst_comb_detect_set_info);
@ -187,6 +191,53 @@ gst_comb_detect_finalize (GObject * object)
G_OBJECT_CLASS (gst_comb_detect_parent_class)->finalize (object);
}
static GstCaps *
gst_comb_detect_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *othercaps;
int i;
othercaps = gst_caps_copy (caps);
if (direction == GST_PAD_SRC) {
GValue value = G_VALUE_INIT;
GValue v = G_VALUE_INIT;
g_value_init (&value, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_STRING);
g_value_set_string (&v, "interleaved");
gst_value_list_append_value (&value, &v);
g_value_set_string (&v, "mixed");
gst_value_list_append_value (&value, &v);
g_value_set_string (&v, "progressive");
gst_value_list_append_value (&value, &v);
for (i = 0; i < gst_caps_get_size (othercaps); i++) {
GstStructure *structure = gst_caps_get_structure (othercaps, i);
gst_structure_set_value (structure, "interlace-mode", &value);
}
g_value_reset (&value);
g_value_reset (&v);
} else {
for (i = 0; i < gst_caps_get_size (othercaps); i++) {
GstStructure *structure = gst_caps_get_structure (othercaps, i);
gst_structure_set (structure, "interlace-mode", G_TYPE_STRING,
"progressive", NULL);
}
}
if (filter) {
GstCaps *intersect;
intersect = gst_caps_intersect (othercaps, filter);
gst_caps_unref (othercaps);
othercaps = intersect;
}
return othercaps;
}
static gboolean
gst_comb_detect_start (GstBaseTransform * trans)