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effectv: port revtv to 0.11

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This commit is contained in:
Wim Taymans 2011-07-07 16:57:39 +02:00
parent 577f689f7e
commit ec7b96010f
2 changed files with 62 additions and 43 deletions
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102
gst/effectv/gstrev.c
View file

@ -64,7 +64,6 @@
#include "gstrev.h"
#include <gst/video/video.h>
#include <gst/controller/gstcontroller.h>
#define THE_COLOR 0xffffffff
@ -77,12 +76,13 @@ enum
PROP_GAIN
};
GST_BOILERPLATE (GstRevTV, gst_revtv, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
#define gst_revtv_parent_class parent_class
G_DEFINE_TYPE (GstRevTV, gst_revtv, 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_revtv_src_template =
@ -104,19 +104,21 @@ gst_revtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstRevTV *filter = GST_REVTV (btrans);
GstStructure *structure;
gboolean ret = FALSE;
GstVideoInfo info;
structure = gst_caps_get_structure (incaps, 0);
if (!gst_video_info_from_caps (&info, incaps))
goto invalid_caps;
GST_OBJECT_LOCK (filter);
if (gst_structure_get_int (structure, "width", &filter->width) &&
gst_structure_get_int (structure, "height", &filter->height)) {
ret = TRUE;
filter->info = info;
return TRUE;
/* ERRORS */
invalid_caps:
{
GST_DEBUG_OBJECT (filter, "invalid caps received");
return FALSE;
}
GST_OBJECT_UNLOCK (filter);
return ret;
}
static GstFlowReturn
@ -124,12 +126,12 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
{
GstRevTV *filter = GST_REVTV (trans);
guint32 *src, *dest;
gint width, height;
gint width, height, sstride, dstride;
guint32 *nsrc;
gint y, x, R, G, B, yval;
GstFlowReturn ret = GST_FLOW_OK;
gint linespace, vscale;
GstClockTime timestamp, stream_time;
GstVideoFrame in_frame, out_frame;
timestamp = GST_BUFFER_TIMESTAMP (in);
stream_time =
@ -141,23 +143,31 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (G_OBJECT (filter), stream_time);
src = (guint32 *) GST_BUFFER_DATA (in);
dest = (guint32 *) GST_BUFFER_DATA (out);
if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
goto invalid_in;
GST_OBJECT_LOCK (filter);
width = filter->width;
height = filter->height;
if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
goto invalid_out;
src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
sstride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&out_frame, 0);
width = GST_VIDEO_FRAME_WIDTH (&in_frame);
height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
/* Clear everything to black */
memset (dest, 0, width * height * sizeof (guint32));
memset (dest, 0, dstride * height * sizeof (guint32));
GST_OBJECT_LOCK (filter);
linespace = filter->linespace;
vscale = filter->vscale;
/* draw the offset lines */
for (y = 0; y < height; y += linespace) {
for (x = 0; x <= width; x++) {
nsrc = src + (y * width) + x;
nsrc = src + (y * sstride) + x;
/* Calc Y Value for curpix */
R = ((*nsrc) & 0xff0000) >> (16 - 1);
@ -167,13 +177,26 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
yval = y - ((short) (R + G + B) / vscale);
if (yval > 0) {
dest[x + (yval * width)] = THE_COLOR;
dest[x + (yval * dstride)] = THE_COLOR;
}
}
}
GST_OBJECT_UNLOCK (filter);
return ret;
return GST_FLOW_OK;
/* ERRORS */
invalid_in:
{
GST_DEBUG_OBJECT (filter, "invalid input frame");
return GST_FLOW_ERROR;
}
invalid_out:
{
GST_DEBUG_OBJECT (filter, "invalid output frame");
gst_video_frame_unmap (&in_frame);
return GST_FLOW_ERROR;
}
}
static void
@ -222,26 +245,11 @@ gst_revtv_get_property (GObject * object, guint prop_id, GValue * value,
}
}
static void
gst_revtv_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class, "RevTV effect",
"Filter/Effect/Video",
"A video waveform monitor for each line of video processed",
"Wim Taymans <wim.taymans@chello.be>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_revtv_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_revtv_src_template));
}
static void
gst_revtv_class_init (GstRevTVClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
gobject_class->set_property = gst_revtv_set_property;
@ -259,12 +267,22 @@ gst_revtv_class_init (GstRevTVClass * klass)
g_param_spec_int ("gain", "Gain", "Control gain", 1, 200, 50,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
gst_element_class_set_details_simple (gstelement_class, "RevTV effect",
"Filter/Effect/Video",
"A video waveform monitor for each line of video processed",
"Wim Taymans <wim.taymans@gmail.be>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_revtv_sink_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_revtv_src_template));
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_revtv_set_caps);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_revtv_transform);
}
static void
gst_revtv_init (GstRevTV * restv, GstRevTVClass * klass)
gst_revtv_init (GstRevTV * restv)
{
restv->vgrabtime = 1;
restv->vgrab = 0;

3
gst/effectv/gstrev.h
View file

@ -45,6 +45,7 @@
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
@ -68,8 +69,8 @@ struct _GstRevTV
GstVideoFilter videofilter;
/* < private > */
GstVideoInfo info;
gint width, height;
gint vgrabtime;
gint vgrab;
gint linespace;