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revtv: Clean up revtv element
This commit is contained in:
Sebastian Dröge
parent
006caab053
commit
f3dc59d010
1 changed files with 34 additions and 84 deletions
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@ -44,12 +44,13 @@
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#include "config.h"
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#endif
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#include <gst/video/gstvideofilter.h>
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#include <math.h>
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideofilter.h>
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#define GST_TYPE_REVTV \
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(gst_revtv_get_type())
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@ -85,19 +86,13 @@ struct _GstRevTVClass
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enum
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{
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ARG_0,
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ARG_DELAY,
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ARG_LINESPACE,
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ARG_GAIN
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PROP_0,
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PROP_DELAY,
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PROP_LINESPACE,
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PROP_GAIN
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};
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GType gst_revtv_get_type (void);
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static const GstElementDetails gst_revtv_details =
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GST_ELEMENT_DETAILS ("RevTV effect",
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"Filter/Effect/Video",
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"A video waveform monitor for each line of video processed",
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"Wim Taymans <wim.taymans@chello.be>");
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GST_BOILERPLATE (GstRevTV, gst_revtv, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
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static GstStaticPadTemplate gst_revtv_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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@ -113,8 +108,6 @@ GST_STATIC_PAD_TEMPLATE ("sink",
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GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx)
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);
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static GstVideoFilterClass *parent_class = NULL;
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static gboolean
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gst_revtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
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GstCaps * outcaps)
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@ -137,13 +130,11 @@ static gboolean
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gst_revtv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
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guint * size)
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{
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GstRevTV *filter;
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GstRevTV *filter = GST_REVTV (btrans);
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GstStructure *structure;
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gboolean ret = FALSE;
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gint width, height;
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filter = GST_REVTV (btrans);
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_get_int (structure, "width", &width) &&
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@ -160,17 +151,13 @@ gst_revtv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
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static GstFlowReturn
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gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
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{
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GstRevTV *filter;
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GstRevTV *filter = GST_REVTV (trans);
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guint32 *src, *dest;
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gint width, height;
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guint32 *nsrc;
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gint y, x, R, G, B, yval;
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GstFlowReturn ret = GST_FLOW_OK;
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filter = GST_REVTV (trans);
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gst_buffer_copy_metadata (out, in, GST_BUFFER_COPY_TIMESTAMPS);
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src = (guint32 *) GST_BUFFER_DATA (in);
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dest = (guint32 *) GST_BUFFER_DATA (out);
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@ -180,12 +167,12 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
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/* Clear everything to black */
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memset (dest, 0, width * height * sizeof (guint32));
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// draw the offset lines
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/* draw the offset lines */
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for (y = 0; y < height; y += filter->linespace) {
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for (x = 0; x <= width; x++) {
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nsrc = src + (y * width) + x;
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// Calc Y Value for curpix
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/* Calc Y Value for curpix */
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R = ((*nsrc) & 0xff0000) >> (16 - 1);
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G = ((*nsrc) & 0xff00) >> (8 - 2);
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B = (*nsrc) & 0xff;
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@ -205,20 +192,16 @@ static void
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gst_revtv_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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{
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GstRevTV *filter;
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g_return_if_fail (GST_IS_REVTV (object));
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filter = GST_REVTV (object);
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GstRevTV *filter = GST_REVTV (object);
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switch (prop_id) {
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case ARG_DELAY:
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case PROP_DELAY:
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filter->vgrabtime = g_value_get_int (value);
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break;
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case ARG_LINESPACE:
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case PROP_LINESPACE:
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filter->linespace = g_value_get_int (value);
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break;
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case ARG_GAIN:
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case PROP_GAIN:
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filter->vscale = g_value_get_int (value);
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break;
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default:
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@ -230,20 +213,16 @@ static void
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gst_revtv_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstRevTV *filter;
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g_return_if_fail (GST_IS_REVTV (object));
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filter = GST_REVTV (object);
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GstRevTV *filter = GST_REVTV (object);
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switch (prop_id) {
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case ARG_DELAY:
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case PROP_DELAY:
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g_value_set_int (value, filter->vgrabtime);
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break;
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case ARG_LINESPACE:
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case PROP_LINESPACE:
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g_value_set_int (value, filter->linespace);
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break;
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case ARG_GAIN:
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case PROP_GAIN:
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g_value_set_int (value, filter->vscale);
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break;
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default:
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@ -257,7 +236,10 @@ gst_revtv_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (element_class, &gst_revtv_details);
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gst_element_class_set_details_simple (element_class, "RevTV effect",
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"Filter/Effect/Video",
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"A video waveform monitor for each line of video processed",
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"Wim Taymans <wim.taymans@chello.be>");
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_revtv_sink_template));
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@ -266,28 +248,23 @@ gst_revtv_base_init (gpointer g_class)
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}
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static void
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gst_revtv_class_init (gpointer klass, gpointer class_data)
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gst_revtv_class_init (GstRevTVClass * klass)
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{
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GObjectClass *gobject_class;
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GstBaseTransformClass *trans_class;
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gobject_class = (GObjectClass *) klass;
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trans_class = (GstBaseTransformClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
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gobject_class->set_property = gst_revtv_set_property;
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gobject_class->get_property = gst_revtv_get_property;
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DELAY,
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DELAY,
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g_param_spec_int ("delay", "Delay", "Delay in frames between updates",
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1, 100, 1, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LINESPACE,
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1, 100, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LINESPACE,
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g_param_spec_int ("linespace", "Linespace", "Control line spacing",
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1, 100, 6, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_GAIN,
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1, 100, 6, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_GAIN,
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g_param_spec_int ("gain", "Gain", "Control gain",
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1, 200, 50, G_PARAM_READWRITE));
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1, 200, 50, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_revtv_set_caps);
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trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_revtv_get_unit_size);
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@ -295,37 +272,10 @@ gst_revtv_class_init (gpointer klass, gpointer class_data)
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}
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static void
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gst_revtv_init (GTypeInstance * instance, gpointer g_class)
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gst_revtv_init (GstRevTV * restv, GstRevTVClass * klass)
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{
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GstRevTV *restv = GST_REVTV (instance);
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restv->vgrabtime = 1;
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restv->vgrab = 0;
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restv->linespace = 6;
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restv->vscale = 50;
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}
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GType
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gst_revtv_get_type (void)
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{
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static GType revtv_type = 0;
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if (!revtv_type) {
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static const GTypeInfo revtv_info = {
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sizeof (GstRevTVClass),
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gst_revtv_base_init,
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NULL,
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(GClassInitFunc) gst_revtv_class_init,
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NULL,
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NULL,
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sizeof (GstRevTV),
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0,
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(GInstanceInitFunc) gst_revtv_init,
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};
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revtv_type =
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g_type_register_static (GST_TYPE_VIDEO_FILTER, "GstRevTV", &revtv_info,
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0);
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}
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return revtv_type;
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}
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