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effectv: port edgetv

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This commit is contained in:
Wim Taymans 2011-07-05 11:40:56 +02:00
parent 4c70f79e35
commit 301e3e32ff
2 changed files with 49 additions and 45 deletions
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86
gst/effectv/gstedge.c
View file

@ -46,14 +46,13 @@
#include "gstedge.h"
#include <gst/video/video.h>
GST_BOILERPLATE (GstEdgeTV, gst_edgetv, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
#define gst_edgetv_parent_class parent_class
G_DEFINE_TYPE (GstEdgeTV, gst_edgetv, GST_TYPE_VIDEO_FILTER);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define CAPS_STR GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_RGBx
#define CAPS_STR GST_VIDEO_CAPS_MAKE ("{ BGRx, RGBx }")
#else
#define CAPS_STR GST_VIDEO_CAPS_xBGR ";" GST_VIDEO_CAPS_xRGB
#define CAPS_STR GST_VIDEO_CAPS_MAKE ("{ xBGR, xRGB }")
#endif
static GstStaticPadTemplate gst_edgetv_src_template =
@ -75,29 +74,35 @@ gst_edgetv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstEdgeTV *edgetv = GST_EDGETV (btrans);
GstStructure *structure;
gboolean ret = FALSE;
structure = gst_caps_get_structure (incaps, 0);
GST_OBJECT_LOCK (edgetv);
if (gst_structure_get_int (structure, "width", &edgetv->width) &&
gst_structure_get_int (structure, "height", &edgetv->height)) {
GstVideoInfo info;
guint map_size;
gint width, height;
edgetv->map_width = edgetv->width / 4;
edgetv->map_height = edgetv->height / 4;
edgetv->video_width_margin = edgetv->width % 4;
if (!gst_video_info_from_caps (&info, incaps))
goto invalid_caps;
edgetv->info = info;
width = GST_VIDEO_INFO_WIDTH (&info);
height = GST_VIDEO_INFO_HEIGHT (&info);
edgetv->map_width = width / 4;
edgetv->map_height = height / 4;
edgetv->video_width_margin = width % 4;
map_size = edgetv->map_width * edgetv->map_height * sizeof (guint32) * 2;
g_free (edgetv->map);
edgetv->map = (guint32 *) g_malloc0 (map_size);
ret = TRUE;
}
GST_OBJECT_UNLOCK (edgetv);
return ret;
return TRUE;
/* ERRORS */
invalid_caps:
{
GST_DEBUG_OBJECT (btrans, "could not parse caps");
return FALSE;
}
}
static GstFlowReturn
@ -112,16 +117,21 @@ gst_edgetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
gint video_width_margin;
guint32 *map;
GstFlowReturn ret = GST_FLOW_OK;
GstVideoFrame in_frame, out_frame;
src = (guint32 *) GST_BUFFER_DATA (in);
dest = (guint32 *) GST_BUFFER_DATA (out);
GST_OBJECT_LOCK (filter);
map = filter->map;
width = filter->width;
map_height = filter->map_height;
map_width = filter->map_width;
video_width_margin = filter->video_width_margin;
gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ);
gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE);
src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (&in_frame);
src += width * 4 + 4;
dest += width * 4 + 4;
@ -198,7 +208,6 @@ gst_edgetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
src += width * 3 + 8 + video_width_margin;
dest += width * 3 + 8 + video_width_margin;
}
GST_OBJECT_UNLOCK (filter);
return ret;
}
@ -226,27 +235,22 @@ gst_edgetv_finalize (GObject * object)
}
static void
gst_edgetv_base_init (gpointer g_class)
gst_edgetv_class_init (GstEdgeTVClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
gst_element_class_set_details_simple (element_class, "EdgeTV effect",
gobject_class->finalize = gst_edgetv_finalize;
gst_element_class_set_details_simple (gstelement_class, "EdgeTV effect",
"Filter/Effect/Video",
"Apply edge detect on video", "Wim Taymans <wim.taymans@chello.be>");
gst_element_class_add_pad_template (element_class,
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_edgetv_sink_template));
gst_element_class_add_pad_template (element_class,
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_edgetv_src_template));
}
static void
gst_edgetv_class_init (GstEdgeTVClass * klass)
{
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->finalize = gst_edgetv_finalize;
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_edgetv_set_caps);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_edgetv_transform);
@ -254,6 +258,6 @@ gst_edgetv_class_init (GstEdgeTVClass * klass)
}
static void
gst_edgetv_init (GstEdgeTV * edgetv, GstEdgeTVClass * klass)
gst_edgetv_init (GstEdgeTV * edgetv)
{
}

4
gst/effectv/gstedge.h
View file

@ -29,6 +29,7 @@
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
@ -52,8 +53,7 @@ struct _GstEdgeTV
GstVideoFilter videofilter;
/* < private > */
gint width, height;
GstVideoInfo info;
gint map_width, map_height;
guint32 *map;
gint video_width_margin;