diff options
author | Wim Taymans <wim.taymans@collabora.co.uk> | 2012-03-22 11:53:24 +0100 |
---|---|---|
committer | Wim Taymans <wim.taymans@collabora.co.uk> | 2012-03-22 11:53:24 +0100 |
commit | c44cd8f55bc0bf409e86b039cad0e2f757d5c77e (patch) | |
tree | fee1a36e4d8d8b533b6e5f0c811e4449f9d5f351 /ext/gdk_pixbuf | |
parent | 3e8ae7603ccbef3db071f8798a1d3809f40f8639 (diff) | |
parent | 440d7034f09de014f96ec183cd59e2b43bcf75c7 (diff) |
Merge branch 'master' into 0.11
unport gdkpixbuf
not merged: https://bugzilla.gnome.org/show_bug.cgi?id=654850
Conflicts:
docs/plugins/Makefile.am
docs/plugins/gst-plugins-good-plugins-docs.sgml
docs/plugins/gst-plugins-good-plugins-sections.txt
docs/plugins/gst-plugins-good-plugins.hierarchy
docs/plugins/inspect/plugin-avi.xml
docs/plugins/inspect/plugin-png.xml
ext/flac/gstflacdec.c
ext/flac/gstflacdec.h
ext/libpng/gstpngdec.c
ext/libpng/gstpngenc.c
ext/speex/gstspeexdec.c
gst/audioparsers/gstflacparse.c
gst/flv/gstflvmux.c
gst/rtp/gstrtpdvdepay.c
gst/rtp/gstrtph264depay.c
Diffstat (limited to 'ext/gdk_pixbuf')
-rw-r--r-- | ext/gdk_pixbuf/Makefile.am | 6 | ||||
-rw-r--r-- | ext/gdk_pixbuf/gstgdkpixbuf.c | 5 | ||||
-rw-r--r-- | ext/gdk_pixbuf/gstgdkpixbufoverlay.c | 508 | ||||
-rw-r--r-- | ext/gdk_pixbuf/gstgdkpixbufoverlay.h | 87 |
4 files changed, 605 insertions, 1 deletions
diff --git a/ext/gdk_pixbuf/Makefile.am b/ext/gdk_pixbuf/Makefile.am index cf5265c2e8..32a82effe1 100644 --- a/ext/gdk_pixbuf/Makefile.am +++ b/ext/gdk_pixbuf/Makefile.am @@ -1,12 +1,15 @@ plugin_LTLIBRARIES = libgstgdkpixbuf.la -libgstgdkpixbuf_la_SOURCES = gstgdkpixbuf.c gstgdkpixbufsink.c pixbufscale.c +libgstgdkpixbuf_la_SOURCES = gstgdkpixbuf.c gstgdkpixbufsink.c pixbufscale.c \ + gstgdkpixbufoverlay.c libgstgdkpixbuf_la_CFLAGS = \ $(GST_PLUGINS_BASE_CFLAGS) \ + $(GST_CONTROLLER_CFLAGS) \ $(GST_BASE_CFLAGS) \ $(GST_CFLAGS) $(GDK_PIXBUF_CFLAGS) libgstgdkpixbuf_la_LIBADD = \ $(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR) \ + $(GST_CONTROLLER_LIBS) \ $(GST_BASE_LIBS) \ $(GST_LIBS) $(GDK_PIXBUF_LIBS) libgstgdkpixbuf_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) @@ -14,6 +17,7 @@ libgstgdkpixbuf_la_LIBTOOLFLAGS = --tag=disable-static noinst_HEADERS = \ gstgdkpixbuf.h \ + gstgdkpixbufoverlay.h \ gstgdkpixbufsink.h \ pixbufscale.h \ gstgdkanimation.h diff --git a/ext/gdk_pixbuf/gstgdkpixbuf.c b/ext/gdk_pixbuf/gstgdkpixbuf.c index 588e1656c9..1f51a24dc4 100644 --- a/ext/gdk_pixbuf/gstgdkpixbuf.c +++ b/ext/gdk_pixbuf/gstgdkpixbuf.c @@ -27,6 +27,7 @@ #include <string.h> #include "gstgdkpixbuf.h" +#include "gstgdkpixbufoverlay.h" #include "gstgdkpixbufsink.h" #include "pixbufscale.h" @@ -589,6 +590,10 @@ plugin_init (GstPlugin * plugin) gst_gdk_pixbuf_type_find, NULL, GST_CAPS_ANY, NULL); #endif + if (!gst_element_register (plugin, "gdkpixbufoverlay", GST_RANK_NONE, + GST_TYPE_GDK_PIXBUF_OVERLAY)) + return FALSE; + if (!gst_element_register (plugin, "gdkpixbufsink", GST_RANK_NONE, GST_TYPE_GDK_PIXBUF_SINK)) return FALSE; diff --git a/ext/gdk_pixbuf/gstgdkpixbufoverlay.c b/ext/gdk_pixbuf/gstgdkpixbufoverlay.c new file mode 100644 index 0000000000..6ea95c7b6a --- /dev/null +++ b/ext/gdk_pixbuf/gstgdkpixbufoverlay.c @@ -0,0 +1,508 @@ +/* GStreamer GdkPixbuf overlay + * Copyright (C) 2012 Tim-Philipp Müller <tim centricular net> + * + * 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., 51 Franklin Street, Suite 500, + * Boston, MA 02110-1335, USA. + */ + +/** + * SECTION:element-gdkpixbufoverlay + * @see_also: + * + * The gdkpixbufoverlay element overlays an image loaded from file onto + * a video stream. + * + * Changing the positioning or overlay width and height properties at runtime + * is supported, but it might be prudent to to protect the property setting + * code with GST_BASE_TRANSFORM_LOCK and GST_BASE_TRANSFORM_UNLOCK, as + * g_object_set() is not atomic for multiple properties passed in one go. + * + * Changing the image at runtime is currently not supported. + * + * Negative offsets are also not yet supported. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch -v videotestsrc ! gdkpixbufoverlay location=image.png ! autovideosink + * ]| + * Overlays the image in image.png onto the test video picture produced by + * videotestsrc. + * </refsect2> + * + * Since: 0.10.33 + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gst/gst.h> + +#include "gstgdkpixbufoverlay.h" + +GST_DEBUG_CATEGORY_STATIC (gdkpixbufoverlay_debug); +#define GST_CAT_DEFAULT gdkpixbufoverlay_debug + +static void gst_gdk_pixbuf_overlay_set_property (GObject * object, + guint property_id, const GValue * value, GParamSpec * pspec); +static void gst_gdk_pixbuf_overlay_get_property (GObject * object, + guint property_id, GValue * value, GParamSpec * pspec); +static void gst_gdk_pixbuf_overlay_finalize (GObject * object); + +static gboolean gst_gdk_pixbuf_overlay_start (GstBaseTransform * trans); +static gboolean gst_gdk_pixbuf_overlay_stop (GstBaseTransform * trans); +static GstFlowReturn +gst_gdk_pixbuf_overlay_transform_ip (GstBaseTransform * trans, GstBuffer * buf); +static void gst_gdk_pixbuf_overlay_before_transform (GstBaseTransform * trans, + GstBuffer * outbuf); +static gboolean +gst_gdk_pixbuf_overlay_set_caps (GstBaseTransform * trans, GstCaps * incaps, + GstCaps * outcaps); + +enum +{ + PROP_0, + PROP_LOCATION, + PROP_OFFSET_X, + PROP_OFFSET_Y, + PROP_RELATIVE_X, + PROP_RELATIVE_Y, + PROP_OVERLAY_WIDTH, + PROP_OVERLAY_HEIGHT +}; + +#define VIDEO_CAPS \ + GST_VIDEO_CAPS_BGRx ";" \ + GST_VIDEO_CAPS_RGB ";" \ + GST_VIDEO_CAPS_BGR ";" \ + GST_VIDEO_CAPS_RGBx ";" \ + GST_VIDEO_CAPS_xRGB ";" \ + GST_VIDEO_CAPS_xBGR ";" \ + GST_VIDEO_CAPS_RGBA ";" \ + GST_VIDEO_CAPS_BGRA ";" \ + GST_VIDEO_CAPS_ARGB ";" \ + GST_VIDEO_CAPS_ABGR ";" \ + GST_VIDEO_CAPS_YUV ("{I420, YV12, AYUV, YUY2, UYVY, v308, v210," \ + " v216, Y41B, Y42B, Y444, Y800, Y16, NV12, NV21, UYVP, A420," \ + " YUV9, IYU1}") + +static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS (VIDEO_CAPS) + ); + +static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS (VIDEO_CAPS) + ); + +GST_BOILERPLATE (GstGdkPixbufOverlay, gst_gdk_pixbuf_overlay, + GstVideoFilter, GST_TYPE_VIDEO_FILTER); + +static void +gst_gdk_pixbuf_overlay_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_add_static_pad_template (element_class, &sink_template); + gst_element_class_add_static_pad_template (element_class, &src_template); + + gst_element_class_set_details_simple (element_class, + "GdkPixbuf Overlay", "Filter/Effect/Video", + "Overlay an image onto a video stream", + "Tim-Philipp Müller <tim centricular net>"); +} + +static void +gst_gdk_pixbuf_overlay_class_init (GstGdkPixbufOverlayClass * klass) +{ + GstBaseTransformClass *basetrans_class = GST_BASE_TRANSFORM_CLASS (klass); + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + gobject_class->set_property = gst_gdk_pixbuf_overlay_set_property; + gobject_class->get_property = gst_gdk_pixbuf_overlay_get_property; + gobject_class->finalize = gst_gdk_pixbuf_overlay_finalize; + + basetrans_class->start = GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_overlay_start); + basetrans_class->stop = GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_overlay_stop); + basetrans_class->set_caps = + GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_overlay_set_caps); + basetrans_class->transform_ip = + GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_overlay_transform_ip); + basetrans_class->before_transform = + GST_DEBUG_FUNCPTR (gst_gdk_pixbuf_overlay_before_transform); + + g_object_class_install_property (gobject_class, PROP_LOCATION, + g_param_spec_string ("location", "location", + "Location of image file to overlay", NULL, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_OFFSET_X, + g_param_spec_int ("offset-x", "X Offset", + "Horizontal offset of overlay image in pixels from top-left corner " + "of video image", G_MININT, G_MAXINT, 0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_OFFSET_Y, + g_param_spec_int ("offset-y", "Y Offset", + "Vertical offset of overlay image in pixels from top-left corner " + "of video image", G_MININT, G_MAXINT, 0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_RELATIVE_X, + g_param_spec_double ("relative-x", "Relative X Offset", + "Horizontal offset of overlay image in fractions of video image " + "width, from top-left corner of video image", 0.0, 1.0, 0.0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_RELATIVE_Y, + g_param_spec_double ("relative-y", "Relative Y Offset", + "Vertical offset of overlay image in fractions of video image " + "height, from top-left corner of video image", 0.0, 1.0, 0.0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_OVERLAY_WIDTH, + g_param_spec_int ("overlay-width", "Overlay Width", + "Width of overlay image in pixels (0 = same as overlay image)", 0, + G_MAXINT, 0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (gobject_class, PROP_OVERLAY_HEIGHT, + g_param_spec_int ("overlay-height", "Overlay Height", + "Height of overlay image in pixels (0 = same as overlay image)", 0, + G_MAXINT, 0, + GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | G_PARAM_READWRITE + | G_PARAM_STATIC_STRINGS)); + + GST_DEBUG_CATEGORY_INIT (gdkpixbufoverlay_debug, "gdkpixbufoverlay", 0, + "debug category for gdkpixbufoverlay element"); +} + +static void +gst_gdk_pixbuf_overlay_init (GstGdkPixbufOverlay * overlay, + GstGdkPixbufOverlayClass * overlay_class) +{ + overlay->offset_x = 0; + overlay->offset_y = 0; + + overlay->relative_x = 0.0; + overlay->relative_y = 0.0; + + overlay->overlay_width = 0; + overlay->overlay_height = 0; +} + +void +gst_gdk_pixbuf_overlay_set_property (GObject * object, guint property_id, + const GValue * value, GParamSpec * pspec) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (object); + + GST_OBJECT_LOCK (overlay); + + switch (property_id) { + case PROP_LOCATION: + g_free (overlay->location); + overlay->location = g_value_dup_string (value); + break; + case PROP_OFFSET_X: + overlay->offset_x = g_value_get_int (value); + overlay->update_composition = TRUE; + break; + case PROP_OFFSET_Y: + overlay->offset_y = g_value_get_int (value); + overlay->update_composition = TRUE; + break; + case PROP_RELATIVE_X: + overlay->relative_x = g_value_get_double (value); + overlay->update_composition = TRUE; + break; + case PROP_RELATIVE_Y: + overlay->relative_y = g_value_get_double (value); + overlay->update_composition = TRUE; + break; + case PROP_OVERLAY_WIDTH: + overlay->overlay_width = g_value_get_int (value); + overlay->update_composition = TRUE; + break; + case PROP_OVERLAY_HEIGHT: + overlay->overlay_height = g_value_get_int (value); + overlay->update_composition = TRUE; + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } + + GST_OBJECT_UNLOCK (overlay); +} + +void +gst_gdk_pixbuf_overlay_get_property (GObject * object, guint property_id, + GValue * value, GParamSpec * pspec) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (object); + + GST_OBJECT_LOCK (overlay); + + switch (property_id) { + case PROP_LOCATION: + g_value_set_string (value, overlay->location); + break; + case PROP_OFFSET_X: + g_value_set_int (value, overlay->offset_x); + break; + case PROP_OFFSET_Y: + g_value_set_int (value, overlay->offset_y); + break; + case PROP_RELATIVE_X: + g_value_set_double (value, overlay->relative_x); + break; + case PROP_RELATIVE_Y: + g_value_set_double (value, overlay->relative_y); + break; + case PROP_OVERLAY_WIDTH: + g_value_set_int (value, overlay->overlay_width); + break; + case PROP_OVERLAY_HEIGHT: + g_value_set_int (value, overlay->overlay_height); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } + + GST_OBJECT_UNLOCK (overlay); +} + +void +gst_gdk_pixbuf_overlay_finalize (GObject * object) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (object); + + g_free (overlay->location); + overlay->location = NULL; + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static gboolean +gst_gdk_pixbuf_overlay_load_image (GstGdkPixbufOverlay * overlay, GError ** err) +{ + GdkPixbuf *pixbuf; + guint8 *pixels, *p; + gint width, height, stride, w, h; + + pixbuf = gdk_pixbuf_new_from_file (overlay->location, err); + + if (pixbuf == NULL) + return FALSE; + + if (!gdk_pixbuf_get_has_alpha (pixbuf)) { + GdkPixbuf *alpha_pixbuf; + + /* FIXME: we could do this much more efficiently ourselves below, but + * we're lazy for now */ + /* FIXME: perhaps expose substitute_color via properties */ + alpha_pixbuf = gdk_pixbuf_add_alpha (pixbuf, FALSE, 0, 0, 0); + g_object_unref (pixbuf); + pixbuf = alpha_pixbuf; + } + + width = gdk_pixbuf_get_width (pixbuf); + height = gdk_pixbuf_get_height (pixbuf); + stride = gdk_pixbuf_get_rowstride (pixbuf); + pixels = gdk_pixbuf_get_pixels (pixbuf); + + /* the memory layout in GdkPixbuf is R-G-B-A, we want: + * - B-G-R-A on little-endian platforms + * - A-R-G-B on big-endian platforms + */ + for (h = 0; h < height; ++h) { + p = pixels + (h * stride); + for (w = 0; w < width; ++w) { + guint8 tmp; + + /* R-G-B-A ==> B-G-R-A */ + tmp = p[0]; + p[0] = p[2]; + p[2] = tmp; + + if (G_BYTE_ORDER == G_BIG_ENDIAN) { + /* B-G-R-A ==> A-R-G-B */ + /* we can probably assume sane alignment */ + *((guint32 *) p) = GUINT32_SWAP_LE_BE (*((guint32 *) p)); + } + + p += 4; + } + } + + overlay->pixels = gst_buffer_new (); + GST_BUFFER_DATA (overlay->pixels) = pixels; + /* assume we have row padding even for the last row */ + GST_BUFFER_SIZE (overlay->pixels) = height * stride; + /* transfer ownership of pixbuf to buffer */ + GST_BUFFER_MALLOCDATA (overlay->pixels) = (guint8 *) pixbuf; + GST_BUFFER_FREE_FUNC (overlay->pixels) = (GFreeFunc) g_object_unref; + + overlay->pixels_width = width; + overlay->pixels_height = height; + overlay->pixels_stride = stride; + + overlay->update_composition = TRUE; + + GST_INFO_OBJECT (overlay, "Loaded image, %d x %d", width, height); + return TRUE; +} + +static gboolean +gst_gdk_pixbuf_overlay_start (GstBaseTransform * trans) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans); + GError *err = NULL; + + if (overlay->location != NULL) { + if (!gst_gdk_pixbuf_overlay_load_image (overlay, &err)) + goto error_loading_image; + + gst_base_transform_set_passthrough (trans, FALSE); + } else { + GST_WARNING_OBJECT (overlay, "no image location set, doing nothing"); + gst_base_transform_set_passthrough (trans, TRUE); + } + + return TRUE; + +/* ERRORS */ +error_loading_image: + { + GST_ELEMENT_ERROR (overlay, RESOURCE, OPEN_READ, + ("Could not load overlay image."), ("%s", err->message)); + g_error_free (err); + return FALSE; + } +} + +static gboolean +gst_gdk_pixbuf_overlay_stop (GstBaseTransform * trans) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans); + + if (overlay->comp) { + gst_video_overlay_composition_unref (overlay->comp); + overlay->comp = NULL; + } + + gst_buffer_replace (&overlay->pixels, NULL); + + return TRUE; +} + +static gboolean +gst_gdk_pixbuf_overlay_set_caps (GstBaseTransform * trans, GstCaps * incaps, + GstCaps * outcaps) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans); + GstVideoFormat video_format; + int w, h; + + if (!gst_video_format_parse_caps (incaps, &video_format, &w, &h)) + return FALSE; + + overlay->format = video_format; + overlay->width = w; + overlay->height = h; + return TRUE; +} + +static void +gst_gdk_pixbuf_overlay_update_composition (GstGdkPixbufOverlay * overlay) +{ + GstVideoOverlayComposition *comp; + GstVideoOverlayRectangle *rect; + gint x, y, width, height; + + x = overlay->offset_x + (overlay->relative_x * overlay->pixels_width); + y = overlay->offset_y + (overlay->relative_y * overlay->pixels_height); + + /* FIXME: this should work, but seems to crash */ + if (x < 0) + x = 0; + if (y < 0) + y = 0; + + width = overlay->overlay_width; + if (width == 0) + width = overlay->pixels_width; + + height = overlay->overlay_height; + if (height == 0) + height = overlay->pixels_height; + + GST_DEBUG_OBJECT (overlay, "overlay image dimensions: %d x %d", + overlay->pixels_width, overlay->pixels_height); + GST_DEBUG_OBJECT (overlay, "properties: x,y: %d,%d (%g%%,%g%%) - WxH: %dx%d", + overlay->offset_x, overlay->offset_y, + overlay->relative_x * 100.0, overlay->relative_y * 100.0, + overlay->overlay_height, overlay->overlay_width); + GST_DEBUG_OBJECT (overlay, "overlay rendered: %d x %d @ %d,%d (onto %d x %d)", + width, height, x, y, overlay->width, overlay->height); + + rect = gst_video_overlay_rectangle_new_argb (overlay->pixels, + overlay->pixels_width, overlay->pixels_height, overlay->pixels_stride, + x, y, width, height, GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE); + + comp = gst_video_overlay_composition_new (rect); + gst_video_overlay_rectangle_unref (rect); + + if (overlay->comp) + gst_video_overlay_composition_unref (overlay->comp); + overlay->comp = comp; +} + +static void +gst_gdk_pixbuf_overlay_before_transform (GstBaseTransform * trans, + GstBuffer * outbuf) +{ + GstClockTime stream_time; + + stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, + GST_BUFFER_TIMESTAMP (outbuf)); + + if (GST_CLOCK_TIME_IS_VALID (stream_time)) + gst_object_sync_values (G_OBJECT (trans), stream_time); +} + +static GstFlowReturn +gst_gdk_pixbuf_overlay_transform_ip (GstBaseTransform * trans, GstBuffer * buf) +{ + GstGdkPixbufOverlay *overlay = GST_GDK_PIXBUF_OVERLAY (trans); + + GST_OBJECT_LOCK (overlay); + + if (G_UNLIKELY (overlay->update_composition)) { + gst_gdk_pixbuf_overlay_update_composition (overlay); + overlay->update_composition = FALSE; + } + + GST_OBJECT_UNLOCK (overlay); + + gst_video_overlay_composition_blend (overlay->comp, buf); + + return GST_FLOW_OK; +} diff --git a/ext/gdk_pixbuf/gstgdkpixbufoverlay.h b/ext/gdk_pixbuf/gstgdkpixbufoverlay.h new file mode 100644 index 0000000000..9c940909f4 --- /dev/null +++ b/ext/gdk_pixbuf/gstgdkpixbufoverlay.h @@ -0,0 +1,87 @@ +/* GStreamer GdkPixbuf overlay + * Copyright (C) 2012 Tim-Philipp Müller <tim centricular net> + * + * 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_GDK_PIXBUF_OVERLAY_H_ +#define _GST_GDK_PIXBUF_OVERLAY_H_ + +#include <gst/video/video.h> +#include <gst/video/gstvideofilter.h> +#include <gst/video/video-overlay-composition.h> + +#include <gdk-pixbuf/gdk-pixbuf.h> + +G_BEGIN_DECLS + +#define GST_TYPE_GDK_PIXBUF_OVERLAY (gst_gdk_pixbuf_overlay_get_type()) +#define GST_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlay)) +#define GST_GDK_PIXBUF_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GDK_PIXBUF_OVERLAY,GstGdkPixbufOverlayClass)) +#define GST_IS_GDK_PIXBUF_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GDK_PIXBUF_OVERLAY)) +#define GST_IS_GDK_PIXBUF_OVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GDK_PIXBUF_OVERLAY)) + +typedef struct _GstGdkPixbufOverlay GstGdkPixbufOverlay; +typedef struct _GstGdkPixbufOverlayClass GstGdkPixbufOverlayClass; + +/** + * GstGdkPixbufOverlay: + * + * The opaque element instance structure. + */ +struct _GstGdkPixbufOverlay +{ + GstVideoFilter videofilter; + + /* negotiated format */ + GstVideoFormat format; + gint width; + gint height; + + /* properties */ + gchar * location; + + gint offset_x; + gint offset_y; + + gdouble relative_x; + gdouble relative_y; + + gint overlay_width; + gint overlay_height; + + /* the loaded image */ + GstBuffer * pixels; + guint pixels_width; + guint pixels_height; + guint pixels_stride; + + GstVideoOverlayComposition * comp; + + /* render position or dimension has changed */ + gboolean update_composition; +}; + +struct _GstGdkPixbufOverlayClass +{ + GstVideoFilterClass videofilter_class; +}; + +GType gst_gdk_pixbuf_overlay_get_type (void); + +G_END_DECLS + +#endif |