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warptv: Clean up warptv element and fix some minor bugs and leaks

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This commit is contained in:
Sebastian Dröge 2009-06-15 21:09:47 +02:00
parent f4fc26dc49
commit cf58ba0fa5
1 changed files with 36 additions and 47 deletions
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83
gst/effectv/gstwarp.c
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@ -37,12 +37,13 @@
#include "config.h"
#endif
#include <gst/video/gstvideofilter.h>
#include <string.h>
#include <math.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
#ifndef M_PI
#define M_PI 3.14159265358979323846
@ -79,18 +80,12 @@ struct _GstWarpTVClass
GstVideoFilterClass parent_class;
};
GType gst_warptv_get_type (void);
GST_BOILERPLATE (GstWarpTV, gst_warptv, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
static void initSinTable (GstWarpTV * filter);
static void initOffsTable (GstWarpTV * filter);
static void initDistTable (GstWarpTV * filter);
static const GstElementDetails warptv_details =
GST_ELEMENT_DETAILS ("WarpTV effect",
"Filter/Effect/Video",
"WarpTV does realtime goo'ing of the video input",
"Sam Lantinga <slouken@devolution.com>");
static GstStaticPadTemplate gst_warptv_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
@ -107,8 +102,6 @@ static GstStaticPadTemplate gst_warptv_sink_template =
GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_xBGR)
);
static GstVideoFilterClass *parent_class = NULL;
static gboolean
gst_warptv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
@ -141,13 +134,11 @@ static gboolean
gst_warptv_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
guint * size)
{
GstWarpTV *filter;
GstWarpTV *filter = GST_WARPTV (btrans);
GstStructure *structure;
gboolean ret = FALSE;
gint width, height;
filter = GST_WARPTV (btrans);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_get_int (structure, "width", &width) &&
@ -227,8 +218,6 @@ gst_warptv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
gint32 *sintable, *ctable;
GstFlowReturn ret = GST_FLOW_OK;
gst_buffer_copy_metadata (out, in, GST_BUFFER_COPY_TIMESTAMPS);
xw = (gint) (sin ((warptv->tval + 100) * M_PI / 128) * 30);
yw = (gint) (sin ((warptv->tval) * M_PI / 256) * -35);
cw = (gint) (sin ((warptv->tval - 70) * M_PI / 64) * 50);
@ -277,12 +266,36 @@ gst_warptv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
return ret;
}
static gboolean
gst_warptv_start (GstBaseTransform * trans)
{
GstWarpTV *warptv = GST_WARPTV (trans);
warptv->tval = 0;
return TRUE;
}
static void
gst_warptv_finalize (GObject * object)
{
GstWarpTV *warptv = GST_WARPTV (object);
g_free (warptv->offstable);
warptv->offstable = NULL;
g_free (warptv->disttable);
warptv->disttable = NULL;
}
static void
gst_warptv_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &warptv_details);
gst_element_class_set_details_simple (element_class, "WarpTV effect",
"Filter/Effect/Video",
"WarpTV does realtime goo'ing of the video input",
"Sam Lantinga <slouken@devolution.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_warptv_sink_template));
@ -291,44 +304,20 @@ gst_warptv_base_init (gpointer g_class)
}
static void
gst_warptv_class_init (gpointer klass, gpointer class_data)
gst_warptv_class_init (GstWarpTVClass * klass)
{
GstBaseTransformClass *trans_class;
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
trans_class = (GstBaseTransformClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_warptv_finalize;
trans_class->start = GST_DEBUG_FUNCPTR (gst_warptv_start);
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_warptv_set_caps);
trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_warptv_get_unit_size);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_warptv_transform);
}
static void
gst_warptv_init (GTypeInstance * instance, gpointer g_class)
gst_warptv_init (GstWarpTV * warptv, GstWarpTVClass * klass)
{
}
GType
gst_warptv_get_type (void)
{
static GType warptv_type = 0;
if (!warptv_type) {
static const GTypeInfo warptv_info = {
sizeof (GstWarpTVClass),
gst_warptv_base_init,
NULL,
gst_warptv_class_init,
NULL,
NULL,
sizeof (GstWarpTV),
0,
gst_warptv_init,
};
warptv_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
"GstWarpTV", &warptv_info, 0);
}
return warptv_type;
}