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shapewipe: Add a simple shapewipe transition filter & example application

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This commit is contained in:
Sebastian Dröge 2009-05-29 15:32:24 +02:00
parent f6be4da21d
commit febef56cf2
7 changed files with 1016 additions and 2 deletions
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3
configure.ac
View file

@ -286,6 +286,7 @@ AG_GST_CHECK_PLUGIN(rtpmux)
AG_GST_CHECK_PLUGIN(scaletempo)
AG_GST_CHECK_PLUGIN(sdp)
AG_GST_CHECK_PLUGIN(selector)
AG_GST_CHECK_PLUGIN(shapewipe)
AG_GST_CHECK_PLUGIN(siren)
AG_GST_CHECK_PLUGIN(speed)
AG_GST_CHECK_PLUGIN(subenc)
@ -1599,6 +1600,7 @@ gst/rtpmux/Makefile
gst/scaletempo/Makefile
gst/sdp/Makefile
gst/selector/Makefile
gst/shapewipe/Makefile
gst/siren/Makefile
gst/speed/Makefile
gst/subenc/Makefile
@ -1633,6 +1635,7 @@ sys/winscreencap/Makefile
tests/examples/Makefile
tests/examples/directfb/Makefile
tests/examples/mxf/Makefile
tests/examples/shapewipe/Makefile
tests/examples/scaletempo/Makefile
tests/examples/switch/Makefile
ext/amrwb/Makefile

11
gst/shapewipe/Makefile.am Normal file
View file

@ -0,0 +1,11 @@
plugin_LTLIBRARIES = libgstshapewipe.la
libgstshapewipe_la_SOURCES = gstshapewipe.c
libgstshapewipe_la_CFLAGS = $(GIO_CFLAGS) $(GST_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
libgstshapewipe_la_LIBADD = $(GIO_LIBS) $(GST_LIBS) $(GST_CONTROLLER_LIBS) $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@
libgstshapewipe_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstshapewipe_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gstshapewipe.h

793
gst/shapewipe/gstshapewipe.c Normal file
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@ -0,0 +1,793 @@
/* GStreamer
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/controller/gstcontroller.h>
#include "gstshapewipe.h"
static void gst_shape_wipe_finalize (GObject * object);
static void gst_shape_wipe_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_shape_wipe_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_shape_wipe_reset (GstShapeWipe * self);
static GstStateChangeReturn gst_shape_wipe_change_state (GstElement * element,
GstStateChange transition);
static GstFlowReturn gst_shape_wipe_video_sink_chain (GstPad * pad,
GstBuffer * buffer);
static gboolean gst_shape_wipe_video_sink_event (GstPad * pad,
GstEvent * event);
static gboolean gst_shape_wipe_video_sink_setcaps (GstPad * pad,
GstCaps * caps);
static GstCaps *gst_shape_wipe_video_sink_getcaps (GstPad * pad);
static GstFlowReturn gst_shape_wipe_mask_sink_chain (GstPad * pad,
GstBuffer * buffer);
static gboolean gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstCaps *gst_shape_wipe_mask_sink_getcaps (GstPad * pad);
static gboolean gst_shape_wipe_src_event (GstPad * pad, GstEvent * event);
static GstCaps *gst_shape_wipe_src_getcaps (GstPad * pad);
enum
{
PROP_0,
PROP_POSITION
};
static GstStaticPadTemplate video_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("video_sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV")));
static GstStaticPadTemplate mask_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("mask_sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-gray, "
"bpp = 8, "
"depth = 8, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1 ; "
"video/x-raw-gray, " "bpp = 16, " "depth = 16, "
"endianness = BYTE_ORDER, " "width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1"));
static GstStaticPadTemplate src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV")));
GST_DEBUG_CATEGORY_STATIC (gst_shape_wipe_debug);
#define GST_CAT_DEFAULT gst_shape_wipe_debug
GST_BOILERPLATE (GstShapeWipe, gst_shape_wipe, GstElement, GST_TYPE_ELEMENT);
static void
gst_shape_wipe_base_init (gpointer g_class)
{
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (gstelement_class,
"Shape Wipe transition filter",
"Filter/Editor/Video",
"Adds a shape wipe transition to a video stream",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&video_sink_pad_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&mask_sink_pad_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_pad_template));
}
static void
gst_shape_wipe_class_init (GstShapeWipeClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_shape_wipe_finalize;
gobject_class->set_property = gst_shape_wipe_set_property;
gobject_class->get_property = gst_shape_wipe_get_property;
g_object_class_install_property (gobject_class, PROP_POSITION,
g_param_spec_float ("position", "Position", "Position of the mask",
0.0, 1.0, 0.0,
G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_shape_wipe_change_state);
}
static void
gst_shape_wipe_init (GstShapeWipe * self, GstShapeWipeClass * g_class)
{
self->video_sinkpad =
gst_pad_new_from_static_template (&video_sink_pad_template, "video_sink");
gst_pad_set_chain_function (self->video_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_chain));
gst_pad_set_event_function (self->video_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_event));
gst_pad_set_setcaps_function (self->video_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_setcaps));
gst_pad_set_getcaps_function (self->video_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_getcaps));
gst_element_add_pad (GST_ELEMENT (self), self->video_sinkpad);
self->mask_sinkpad =
gst_pad_new_from_static_template (&mask_sink_pad_template, "mask_sink");
gst_pad_set_chain_function (self->mask_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_chain));
gst_pad_set_event_function (self->mask_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_event));
gst_pad_set_setcaps_function (self->mask_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_setcaps));
gst_pad_set_getcaps_function (self->mask_sinkpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_getcaps));
gst_element_add_pad (GST_ELEMENT (self), self->mask_sinkpad);
self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src");
gst_pad_set_event_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_src_event));
gst_pad_set_getcaps_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_shape_wipe_src_getcaps));
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->mask_mutex = g_mutex_new ();
self->mask_cond = g_cond_new ();
gst_shape_wipe_reset (self);
}
static void
gst_shape_wipe_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstShapeWipe *self = GST_SHAPE_WIPE (object);
switch (prop_id) {
case PROP_POSITION:
g_value_set_float (value, self->mask_position);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_shape_wipe_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstShapeWipe *self = GST_SHAPE_WIPE (object);
switch (prop_id) {
case PROP_POSITION:
self->mask_position = g_value_get_float (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_shape_wipe_finalize (GObject * object)
{
GstShapeWipe *self = GST_SHAPE_WIPE (object);
gst_shape_wipe_reset (self);
if (self->mask_cond)
g_cond_free (self->mask_cond);
self->mask_cond = NULL;
if (self->mask_mutex)
g_mutex_free (self->mask_mutex);
self->mask_mutex = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_shape_wipe_reset (GstShapeWipe * self)
{
if (self->mask)
gst_buffer_unref (self->mask);
self->mask = NULL;
g_cond_signal (self->mask_cond);
self->width = self->height = 0;
self->mask_position = 0.0;
self->mask_bpp = 0;
gst_segment_init (&self->segment, GST_FORMAT_TIME);
}
static gboolean
gst_shape_wipe_video_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret = TRUE;
GstStructure *s;
gint width, height;
GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "width", &width) ||
!gst_structure_get_int (s, "height", &height)) {
ret = FALSE;
goto done;
}
if (self->width != width || self->height != height) {
g_mutex_lock (self->mask_mutex);
self->width = width;
self->height = height;
if (self->mask)
gst_buffer_unref (self->mask);
self->mask = NULL;
g_mutex_unlock (self->mask_mutex);
}
ret = gst_pad_set_caps (self->srcpad, caps);
done:
gst_object_unref (self);
return ret;
}
static GstCaps *
gst_shape_wipe_video_sink_getcaps (GstPad * pad)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
if (GST_PAD_CAPS (pad))
return gst_caps_copy (GST_PAD_CAPS (pad));
tmp = gst_pad_peer_get_caps (self->srcpad);
if (tmp) {
ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
}
tmp = gst_pad_peer_get_caps (pad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
if (self->height && self->width) {
guint i, n;
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
G_TYPE_INT, self->height, NULL);
}
}
tmp = gst_pad_peer_get_caps (self->mask_sinkpad);
if (tmp) {
GstCaps *intersection, *tmp2;
guint i, n;
tmp = gst_caps_make_writable (tmp);
tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
intersection = gst_caps_intersect (tmp, tmp2);
gst_caps_unref (tmp);
gst_caps_unref (tmp2);
tmp = intersection;
n = gst_caps_get_size (tmp);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
gst_structure_remove_fields (s, "bpp", "depth", "endianness", "framerate",
NULL);
gst_structure_set_name (s, "video/x-raw-yuv");
}
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static gboolean
gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret = TRUE;
GstStructure *s;
gint width, height, bpp;
GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps);
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "width", &width) ||
!gst_structure_get_int (s, "height", &height) ||
!gst_structure_get_int (s, "bpp", &bpp)) {
ret = FALSE;
goto done;
}
if ((self->width != width || self->height != height) &&
self->width > 0 && self->height > 0) {
GST_ERROR_OBJECT (pad, "Mask caps must have the same width/height "
"as the video caps");
ret = FALSE;
goto done;
} else {
self->width = width;
self->height = height;
}
self->mask_bpp = bpp;
done:
gst_object_unref (self);
return ret;
}
static GstCaps *
gst_shape_wipe_mask_sink_getcaps (GstPad * pad)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
guint i, n;
if (GST_PAD_CAPS (pad))
return gst_caps_copy (GST_PAD_CAPS (pad));
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
if (tmp) {
ret =
gst_caps_intersect (tmp,
gst_pad_get_pad_template_caps (self->video_sinkpad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
}
tmp = gst_pad_peer_get_caps (self->srcpad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (ret, tmp);
gst_caps_unref (ret);
gst_caps_unref (tmp);
ret = intersection;
}
n = gst_caps_get_size (ret);
tmp = gst_caps_new_empty ();
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
GstStructure *t;
gst_structure_set_name (s, "video/x-raw-gray");
gst_structure_remove_fields (s, "format", "framerate", NULL);
if (self->width && self->height)
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
G_TYPE_INT, self->height, NULL);
gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
t = gst_structure_copy (s);
gst_structure_set (s, "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
gst_structure_set (t, "bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
gst_caps_append_structure (tmp, t);
}
gst_caps_merge (ret, tmp);
tmp = gst_pad_peer_get_caps (pad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static GstCaps *
gst_shape_wipe_src_getcaps (GstPad * pad)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
if (GST_PAD_CAPS (pad))
return gst_caps_copy (GST_PAD_CAPS (pad));
else if (GST_PAD_CAPS (self->video_sinkpad))
return gst_caps_copy (GST_PAD_CAPS (self->video_sinkpad));
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
if (tmp) {
ret =
gst_caps_intersect (tmp,
gst_pad_get_pad_template_caps (self->video_sinkpad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
}
tmp = gst_pad_peer_get_caps (pad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
if (self->height && self->width) {
guint i, n;
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
G_TYPE_INT, self->height, NULL);
}
}
tmp = gst_pad_peer_get_caps (self->mask_sinkpad);
if (tmp) {
GstCaps *intersection, *tmp2;
guint i, n;
tmp = gst_caps_make_writable (tmp);
tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
intersection = gst_caps_intersect (tmp, tmp2);
gst_caps_unref (tmp);
gst_caps_unref (tmp2);
tmp = intersection;
n = gst_caps_get_size (tmp);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
gst_structure_remove_fields (s, "bpp", "depth", "endianness", "framerate",
NULL);
gst_structure_set_name (s, "video/x-raw-yuv");
}
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static GstFlowReturn
gst_shape_wipe_blend_16 (GstShapeWipe * self, GstBuffer * inbuf,
GstBuffer * maskbuf, GstBuffer * outbuf)
{
const guint16 *mask = (const guint16 *) GST_BUFFER_DATA (maskbuf);
const guint8 *input = (const guint8 *) GST_BUFFER_DATA (inbuf);
guint8 *output = (guint8 *) GST_BUFFER_DATA (outbuf);
guint i, j;
guint mask_increment = GST_ROUND_UP_2 (self->width) - self->width;
gfloat position = self->mask_position;
for (i = 0; i < self->height; i++) {
for (j = 0; j < self->width; j++) {
if (*mask / 65535.0 < position) {
output[0] = 0x00; /* A */
output[1] = 0x00; /* Y */
output[2] = 0x80; /* U */
output[3] = 0x80; /* V */
} else {
output[0] = 0xff; /* A */
output[1] = input[1]; /* Y */
output[2] = input[2]; /* U */
output[3] = input[3]; /* V */
}
mask++;
input += 4;
output += 4;
}
mask += mask_increment;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_shape_wipe_blend_8 (GstShapeWipe * self, GstBuffer * inbuf,
GstBuffer * maskbuf, GstBuffer * outbuf)
{
const guint8 *mask = (const guint8 *) GST_BUFFER_DATA (maskbuf);
const guint8 *input = (const guint8 *) GST_BUFFER_DATA (inbuf);
guint8 *output = (guint8 *) GST_BUFFER_DATA (outbuf);
guint i, j;
guint mask_increment = GST_ROUND_UP_4 (self->width) - self->width;
gfloat position = self->mask_position;
for (i = 0; i < self->height; i++) {
for (j = 0; j < self->width; j++) {
if (*mask / 255.0 < position) {
output[0] = 0x00; /* A */
output[1] = 0x00; /* Y */
output[2] = 0x80; /* U */
output[3] = 0x80; /* V */
} else {
output[0] = 0xff; /* A */
output[1] = input[1]; /* Y */
output[2] = input[2]; /* U */
output[3] = input[3]; /* V */
}
mask++;
input += 4;
output += 4;
}
mask += mask_increment;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_shape_wipe_video_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad));
GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *mask = NULL, *outbuf = NULL;
GstClockTime timestamp;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
timestamp =
gst_segment_to_stream_time (&self->segment, GST_FORMAT_TIME, timestamp);
if (GST_CLOCK_TIME_IS_VALID (timestamp))
gst_object_sync_values (G_OBJECT (self), timestamp);
GST_DEBUG_OBJECT (self,
"Blending buffer with timestamp %" GST_TIME_FORMAT " at position %lf",
GST_TIME_ARGS (timestamp), self->mask_position);
g_mutex_lock (self->mask_mutex);
mask = self->mask;
if (self->mask)
gst_buffer_ref (self->mask);
else
g_cond_wait (self->mask_cond, self->mask_mutex);
if (self->mask == NULL) {
g_mutex_unlock (self->mask_mutex);
return GST_FLOW_UNEXPECTED;
}
mask = gst_buffer_ref (self->mask);
g_mutex_unlock (self->mask_mutex);
ret =
gst_pad_alloc_buffer_and_set_caps (self->srcpad, GST_BUFFER_OFFSET_NONE,
GST_BUFFER_SIZE (buffer), GST_PAD_CAPS (self->srcpad), &outbuf);
if (G_UNLIKELY (ret != GST_FLOW_OK))
return ret;
if (self->mask_bpp == 16)
ret = gst_shape_wipe_blend_16 (self, buffer, mask, outbuf);
else
ret = gst_shape_wipe_blend_8 (self, buffer, mask, outbuf);
gst_buffer_unref (mask);
gst_buffer_unref (buffer);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (outbuf);
return ret;
}
ret = gst_pad_push (self->srcpad, outbuf);
return ret;
}
static GstFlowReturn
gst_shape_wipe_mask_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad));
GstFlowReturn ret = GST_FLOW_OK;
g_mutex_lock (self->mask_mutex);
GST_DEBUG_OBJECT (self, "Setting new mask buffer: %" GST_PTR_FORMAT, buffer);
gst_buffer_replace (&self->mask, buffer);
g_cond_signal (self->mask_cond);
g_mutex_unlock (self->mask_mutex);
return ret;
}
static GstStateChangeReturn
gst_shape_wipe_change_state (GstElement * element, GstStateChange transition)
{
GstShapeWipe *self = GST_SHAPE_WIPE (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
default:
break;
}
/* Unblock video sink chain function */
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
g_cond_signal (self->mask_cond);
if (GST_ELEMENT_CLASS (parent_class)->change_state)
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_shape_wipe_reset (self);
break;
default:
break;
}
return ret;
}
static gboolean
gst_shape_wipe_video_sink_event (GstPad * pad, GstEvent * event)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret;
GST_DEBUG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:{
GstFormat fmt;
gboolean is_update;
gint64 start, end, base;
gdouble rate;
gst_event_parse_new_segment (event, &is_update, &rate, &fmt, &start,
&end, &base);
if (fmt == GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (pad,
"Got NEWSEGMENT event in GST_FORMAT_TIME, passing on (%"
GST_TIME_FORMAT " - %" GST_TIME_FORMAT ")", GST_TIME_ARGS (start),
GST_TIME_ARGS (end));
gst_segment_set_newsegment (&self->segment, is_update, rate, fmt, start,
end, base);
} else {
gst_segment_init (&self->segment, GST_FORMAT_TIME);
}
}
/* fall through */
default:
ret = gst_pad_push_event (self->srcpad, event);
break;
}
gst_object_unref (self);
return ret;
}
static gboolean
gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event)
{
GST_DEBUG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
/* Dropping all events here */
gst_event_unref (event);
return TRUE;
}
static gboolean
gst_shape_wipe_src_event (GstPad * pad, GstEvent * event)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
default:
ret = gst_pad_push_event (self->video_sinkpad, event);
break;
}
gst_object_unref (self);
return ret;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_shape_wipe_debug, "shapewipe", 0,
"shapewipe element");
gst_controller_init (NULL, NULL);
if (!gst_element_register (plugin, "shapewipe", GST_RANK_NONE,
GST_TYPE_SHAPE_WIPE))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"shapewipe",
"Shape Wipe transition filter",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

73
gst/shapewipe/gstshapewipe.h Normal file
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@ -0,0 +1,73 @@
/* GStreamer
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_SHAPE_WIPE_H__
#define __GST_SHAPE_WIPE_H__
#include <gst/gst.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_SHAPE_WIPE \
(gst_shape_wipe_get_type())
#define GST_SHAPE_WIPE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SHAPE_WIPE,GstShapeWipe))
#define GST_SHAPE_WIPE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SHAPE_WIPE,GstShapeWipeClass))
#define GST_SHAPE_WIPE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_SHAPE_WIPE,GstShapeWipeClass))
#define GST_IS_SHAPE_WIPE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SHAPE_WIPE))
#define GST_IS_SHAPE_WIPE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SHAPE_WIPE))
typedef struct _GstShapeWipe GstShapeWipe;
typedef struct _GstShapeWipeClass GstShapeWipeClass;
struct _GstShapeWipe
{
GstElement parent;
/* private */
GstPad *video_sinkpad;
GstPad *mask_sinkpad;
GstPad *srcpad;
GstSegment segment;
GstBuffer *mask;
gfloat mask_position;
GMutex *mask_mutex;
GCond *mask_cond;
gint mask_bpp;
gint width, height;
};
struct _GstShapeWipeClass
{
GstElementClass parent_class;
};
GType gst_shape_wipe_get_type (void);
G_END_DECLS
#endif /* __GST_SHAPE_WIPE_H__ */

4
tests/examples/Makefile.am
View file

@ -10,5 +10,5 @@ else
DIRECTFB_DIR=
endif
SUBDIRS= $(DIRECTFB_DIR) $(GTK_EXAMPLES) switch
DIST_SUBDIRS= directfb switch scaletempo mxf
SUBDIRS= $(DIRECTFB_DIR) $(GTK_EXAMPLES) switch shapewipe mxf
DIST_SUBDIRS= directfb switch scaletempo shapewipe mxf

6
tests/examples/shapewipe/Makefile.am Normal file
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@ -0,0 +1,6 @@
noinst_PROGRAMS = shapewipe-example
shapewipe_example_CFLAGS = $(GST_CFLAGS) $(GST_CONTROLLER_LIBS)
shapewipe_example_LDADD = $(GST_LIBS) $(GST_CONTROLLER_LIBS)
shapewipe_example_SOURCES = shapewipe-example.c

128
tests/examples/shapewipe/shapewipe-example.c Normal file
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@ -0,0 +1,128 @@
/* GStreamer
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/gst.h>
#include <gst/controller/gstcontroller.h>
#include <gst/controller/gstlfocontrolsource.h>
static gboolean
on_message (GstBus * bus, GstMessage * message, gpointer user_data)
{
GMainLoop *loop = (GMainLoop *) user_data;
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
g_warning ("Got ERROR");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_WARNING:
g_warning ("Got WARNING");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_EOS:
g_main_loop_quit (loop);
break;
default:
break;
}
return TRUE;
}
gint
main (gint argc, gchar ** argv)
{
GstElement *pipeline;
GstElement *shapewipe;
GstController *ctrl;
GstLFOControlSource *csource;
GValue val = { 0, };
GMainLoop *loop;
GstBus *bus;
gchar *pipeline_string;
if (argc != 2) {
g_print ("Usage: shapewipe mask.png\n");
return -1;
}
gst_init (&argc, &argv);
gst_controller_init (&argc, &argv);
pipeline_string =
g_strdup_printf
("videotestsrc ! video/x-raw-yuv,width=640,height=480 ! shapewipe name=shape ! videomixer name=mixer ! ffmpegcolorspace ! autovideosink filesrc location=%s ! typefind ! decodebin2 ! ffmpegcolorspace ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw-yuv,width=640,height=480 ! queue ! mixer.",
argv[1]);
pipeline = gst_parse_launch (pipeline_string, NULL);
g_free (pipeline_string);
if (pipeline == NULL) {
g_print ("Failed to create pipeline\n");
return -2;
}
shapewipe = gst_bin_get_by_name (GST_BIN (pipeline), "shape");
if (!(ctrl = gst_controller_new (G_OBJECT (shapewipe), "position", NULL))) {
g_print ("can't control shapewipe element\n");
return -3;
}
csource = gst_lfo_control_source_new ();
gst_controller_set_control_source (ctrl, "position",
GST_CONTROL_SOURCE (csource));
g_value_init (&val, G_TYPE_FLOAT);
g_value_set_float (&val, 0.5);
g_object_set (G_OBJECT (csource), "amplitude", &val, NULL);
g_value_set_float (&val, 0.5);
g_object_set (G_OBJECT (csource), "offset", &val, NULL);
g_value_unset (&val);
g_object_set (G_OBJECT (csource), "frequency", 0.5, NULL);
g_object_set (G_OBJECT (csource), "timeshift", 500 * GST_MSECOND, NULL);
g_object_unref (csource);
loop = g_main_loop_new (NULL, FALSE);
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (G_OBJECT (bus), "message", G_CALLBACK (on_message), loop);
gst_object_unref (GST_OBJECT (bus));
if (gst_element_set_state (pipeline,
GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
g_error ("Failed to go into PLAYING state");
return -4;
}
g_main_loop_run (loop);
gst_element_set_state (pipeline, GST_STATE_NULL);
g_main_loop_unref (loop);
g_object_unref (G_OBJECT (ctrl));
gst_object_unref (G_OBJECT (pipeline));
return 0;
}