diff options
Diffstat (limited to 'gst/overlay/gstoverlay.c')
| -rw-r--r-- | gst/overlay/gstoverlay.c | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/gst/overlay/gstoverlay.c b/gst/overlay/gstoverlay.c deleted file mode 100644 index 20cf47abc..000000000 --- a/gst/overlay/gstoverlay.c +++ /dev/null @@ -1,357 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> - * Copyright (C) <2003> David Schleef <ds@schleef.org> - * - * 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 St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif -#include "gstoverlay.h" -#include <gst/video/video.h> - -static GstStaticPadTemplate overlay_src_factory = -GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -static GstStaticPadTemplate overlay_sink1_factory = -GST_STATIC_PAD_TEMPLATE ("sink1", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -static GstStaticPadTemplate overlay_sink2_factory = -GST_STATIC_PAD_TEMPLATE ("sink2", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -static GstStaticPadTemplate overlay_sink3_factory = -GST_STATIC_PAD_TEMPLATE ("sink3", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) - ); - -/* OVERLAY signals and args */ -enum -{ - /* FILL ME */ - LAST_SIGNAL -}; - -enum -{ - PROP_0 -}; - - -static void gst_overlay_class_init (GstOverlayClass * klass); -static void gst_overlay_base_init (GstOverlayClass * klass); -static void gst_overlay_init (GstOverlay * overlay); - -static void gst_overlay_loop (GstElement * element); - -static void gst_overlay_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_overlay_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -static GstElementClass *parent_class = NULL; - -/*static guint gst_overlay_signals[LAST_SIGNAL] = { 0 }; */ - -static GType -gst_overlay_get_type (void) -{ - static GType overlay_type = 0; - - if (!overlay_type) { - static const GTypeInfo overlay_info = { - sizeof (GstOverlayClass), - (GBaseInitFunc) gst_overlay_base_init, - NULL, - (GClassInitFunc) gst_overlay_class_init, - NULL, - NULL, - sizeof (GstOverlay), - 0, - (GInstanceInitFunc) gst_overlay_init, - }; - - overlay_type = - g_type_register_static (GST_TYPE_ELEMENT, "GstOverlay", &overlay_info, - 0); - } - return overlay_type; -} - -static void -gst_overlay_base_init (GstOverlayClass * klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_add_static_pad_template (element_class, - &overlay_sink1_factory); - gst_element_class_add_static_pad_template (element_class, - &overlay_sink2_factory); - gst_element_class_add_static_pad_template (element_class, - &overlay_sink3_factory); - gst_element_class_add_static_pad_template (element_class, - &overlay_src_factory); - gst_element_class_set_static_metadata (element_class, "Video overlay", - "Filter/Editor/Video", "Overlay multiple video streams", - "David Schleef <ds@schleef.org>"); -} - -static void -gst_overlay_class_init (GstOverlayClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) klass; - - parent_class = g_type_class_peek_parent (klass); - - gobject_class->set_property = gst_overlay_set_property; - gobject_class->get_property = gst_overlay_get_property; - -} - -#if 0 -static GstCaps * -gst_overlay_getcaps (GstPad * pad) -{ - GstCaps *caps; - GstOverlay *overlay; - - overlay = GST_OVERLAY (gst_pad_get_parent (pad)); - - if (overlay->width && overlay->height) { - caps = GST_STATIC_CAPS ("overlay_sink2", - "video/raw", - "format", GST_TYPE_FOURCC (GST_MAKE_FOURCC ('I', '4', '2', '0')), - "width", G_TYPE_INT (overlay->width), - "height", G_TYPE_INT (overlay->height) - ); - } else { - caps = GST_STATIC_CAPS ("overlay_sink2", - "video/raw", - "format", GST_TYPE_FOURCC (GST_MAKE_FOURCC ('I', '4', '2', '0')), - "width", G_TYPE_INT_RANGE (0, 4096), - "height", G_TYPE_INT_RANGE (0, 4096) - ); - } - - return caps; -} -#endif - -static gboolean -gst_overlay_sinkconnect (GstPad * pad, const GstCaps * caps) -{ - GstOverlay *overlay; - GstStructure *structure; - - overlay = GST_OVERLAY (gst_pad_get_parent (pad)); - - structure = gst_caps_get_structure (caps, 0); - - gst_structure_get_int (structure, "width", &overlay->width); - gst_structure_get_int (structure, "height", &overlay->height); - gst_structure_get_double (structure, "framerate", &overlay->framerate); - - /* forward to the next plugin */ - return gst_pad_try_set_caps (overlay->srcpad, caps); -} - -static void -gst_overlay_init (GstOverlay * overlay) -{ - overlay->sinkpad1 = - gst_pad_new_from_static_template (&overlay_sink1_factory, "sink1"); - gst_pad_set_link_function (overlay->sinkpad1, gst_overlay_sinkconnect); - gst_element_add_pad (GST_ELEMENT (overlay), overlay->sinkpad1); - - overlay->sinkpad2 = - gst_pad_new_from_static_template (&overlay_sink2_factory, "sink2"); - gst_pad_set_link_function (overlay->sinkpad2, gst_overlay_sinkconnect); - gst_element_add_pad (GST_ELEMENT (overlay), overlay->sinkpad2); - - overlay->sinkpad3 = - gst_pad_new_from_static_template (&overlay_sink3_factory, "sink3"); - gst_pad_set_link_function (overlay->sinkpad3, gst_overlay_sinkconnect); - gst_element_add_pad (GST_ELEMENT (overlay), overlay->sinkpad3); - - overlay->srcpad = - gst_pad_new_from_static_template (&overlay_src_factory, "src"); - gst_element_add_pad (GST_ELEMENT (overlay), overlay->srcpad); - - gst_element_set_loop_function (GST_ELEMENT (overlay), gst_overlay_loop); -} - -static void -gst_overlay_blend_i420 (guint8 * out, guint8 * in1, guint8 * in2, guint8 * in3, - gint width, gint height) -{ - int mask; - int i, j; - guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv; - int lumsize; - int chromsize; - int width2 = width / 2; - int height2 = height / 2; - - lumsize = width * height; - chromsize = width2 * height2; - - in1u = in1 + lumsize; - in1v = in1u + chromsize; - in2u = in2 + lumsize; - in2v = in2u + chromsize; - outu = out + lumsize; - outv = outu + chromsize; - - for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { - mask = in3[i * width + j]; - out[i * width + j] = ((in1[i * width + j] * mask) + - (in2[i * width + j] * (255 - mask))) >> 8; - } - } - - for (i = 0; i < height / 2; i++) { - for (j = 0; j < width / 2; j++) { - mask = - (in3[(i * 2) * width + (j * 2)] + in3[(i * 2 + 1) * width + (j * 2)] + - in3[(i * 2) * width + (j * 2 + 1)] + in3[(i * 2 + 1) * width + - (j * 2 + 1)]) / 4; - outu[i * width2 + j] = - ((in1u[i * width2 + j] * mask) + (in2u[i * width2 + j] * (255 - - mask))) >> 8; - outv[i * width2 + j] = - ((in1v[i * width2 + j] * mask) + (in2v[i * width2 + j] * (255 - - mask))) >> 8; - } - } -} - -static void -gst_overlay_loop (GstElement * element) -{ - GstOverlay *overlay; - GstBuffer *out; - GstBuffer *in1 = NULL, *in2 = NULL, *in3 = NULL; - int size; - - overlay = GST_OVERLAY (element); - - in1 = GST_BUFFER (gst_pad_pull (overlay->sinkpad1)); - if (GST_IS_EVENT (in1)) { - gst_pad_push (overlay->srcpad, GST_DATA (in1)); - /* FIXME */ - return; - } - in2 = GST_BUFFER (gst_pad_pull (overlay->sinkpad2)); - if (GST_IS_EVENT (in2)) { - gst_pad_push (overlay->srcpad, GST_DATA (in2)); - /* FIXME */ - return; - } - in3 = GST_BUFFER (gst_pad_pull (overlay->sinkpad3)); - if (GST_IS_EVENT (in3)) { - gst_pad_push (overlay->srcpad, GST_DATA (in3)); - /* FIXME */ - return; - } - - g_return_if_fail (in1 != NULL); - g_return_if_fail (in2 != NULL); - g_return_if_fail (in3 != NULL); - - size = (overlay->width * overlay->height * 3) / 2; - g_return_if_fail (GST_BUFFER_SIZE (in1) != size); - g_return_if_fail (GST_BUFFER_SIZE (in2) != size); - g_return_if_fail (GST_BUFFER_SIZE (in3) != size); - - out = gst_buffer_new_and_alloc (size); - - gst_overlay_blend_i420 (GST_BUFFER_DATA (out), - GST_BUFFER_DATA (in1), - GST_BUFFER_DATA (in2), - GST_BUFFER_DATA (in3), overlay->width, overlay->height); - - GST_BUFFER_TIMESTAMP (out) = GST_BUFFER_TIMESTAMP (in1); - GST_BUFFER_DURATION (out) = GST_BUFFER_DURATION (in1); - - gst_buffer_unref (in1); - gst_buffer_unref (in2); - gst_buffer_unref (in3); - - gst_pad_push (overlay->srcpad, GST_DATA (out)); -} - -static void -gst_overlay_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstOverlay *overlay; - - overlay = GST_OVERLAY (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_overlay_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec) -{ - GstOverlay *overlay; - - overlay = GST_OVERLAY (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - - -static gboolean -plugin_init (GstPlugin * plugin) -{ - return gst_element_register (plugin, "overlay", - GST_RANK_NONE, GST_TYPE_OVERLAY); -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - overlay, - "Overlay multiple video streams", - plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) |