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Diffstat (limited to 'wearable/ext/gdk_pixbuf/pixbufscale.c')
-rw-r--r--wearable/ext/gdk_pixbuf/pixbufscale.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/wearable/ext/gdk_pixbuf/pixbufscale.c b/wearable/ext/gdk_pixbuf/pixbufscale.c
deleted file mode 100644
index ba98f62..0000000
--- a/wearable/ext/gdk_pixbuf/pixbufscale.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- * Copyright (C) <2004> Jan Schmidt <thaytan@mad.scientist.com>
- * Copyright (C) <2004> Tim-Philipp Mueller <t.i.m@orange.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.
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <pixbufscale.h>
-#include <gst/video/video.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
-
-#define ROUND_UP_2(x) (((x)+1)&~1)
-#define ROUND_UP_4(x) (((x)+3)&~3)
-#define ROUND_UP_8(x) (((x)+7)&~7)
-
-/* These match the ones gstffmpegcolorspace uses (Tim) */
-#define GST_RGB24_ROWSTRIDE(width) (ROUND_UP_4 ((width)*3))
-#define GST_RGB24_SIZE(width,height) ((height)*GST_RGB24_ROWSTRIDE(width))
-
-
-GST_DEBUG_CATEGORY_STATIC (pixbufscale_debug);
-#define GST_CAT_DEFAULT pixbufscale_debug
-
-/* GstPixbufScale signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_METHOD
- /* FILL ME */
-};
-
-static GstStaticPadTemplate gst_pixbufscale_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
- );
-
-static GstStaticPadTemplate gst_pixbufscale_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
- );
-
-#define GST_TYPE_PIXBUFSCALE_METHOD (gst_pixbufscale_method_get_type())
-static GType
-gst_pixbufscale_method_get_type (void)
-{
- static GType pixbufscale_method_type = 0;
- static const GEnumValue pixbufscale_methods[] = {
- {GST_PIXBUFSCALE_NEAREST, "0", "Nearest Neighbour"},
- {GST_PIXBUFSCALE_TILES, "1", "Tiles"},
- {GST_PIXBUFSCALE_BILINEAR, "2", "Bilinear"},
- {GST_PIXBUFSCALE_HYPER, "3", "Hyper"},
- {0, NULL, NULL},
- };
-
- if (!pixbufscale_method_type) {
- pixbufscale_method_type =
- g_enum_register_static ("GstPixbufScaleMethod", pixbufscale_methods);
- }
- return pixbufscale_method_type;
-}
-
-static void gst_pixbufscale_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_pixbufscale_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstCaps *gst_pixbufscale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps);
-static gboolean gst_pixbufscale_set_caps (GstBaseTransform * trans,
- GstCaps * in, GstCaps * out);
-static gboolean gst_pixbufscale_get_unit_size (GstBaseTransform * trans,
- GstCaps * caps, guint * size);
-static void gst_pixbufscale_fixate_caps (GstBaseTransform * base,
- GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
-static GstFlowReturn gst_pixbufscale_transform (GstBaseTransform * trans,
- GstBuffer * in, GstBuffer * out);
-static gboolean gst_pixbufscale_handle_src_event (GstPad * pad,
- GstEvent * event);
-
-
-static gboolean parse_caps (GstCaps * caps, gint * width, gint * height);
-
-GST_BOILERPLATE (GstPixbufScale, gst_pixbufscale, GstBaseTransform,
- GST_TYPE_BASE_TRANSFORM);
-
-static void
-gst_pixbufscale_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details_simple (element_class, "GdkPixbuf image scaler",
- "Filter/Effect/Video", "Resizes video",
- "Jan Schmidt <thaytan@mad.scientist.com>, "
- "Wim Taymans <wim.taymans@chello.be>, "
- "Renato Filho <renato.filho@indt.org.br>");
-
- gst_element_class_add_static_pad_template (element_class,
- &gst_pixbufscale_src_template);
- gst_element_class_add_static_pad_template (element_class,
- &gst_pixbufscale_sink_template);
-}
-
-static void
-gst_pixbufscale_class_init (GstPixbufScaleClass * klass)
-{
- GObjectClass *gobject_class;
- GstBaseTransformClass *trans_class;
-
- gobject_class = (GObjectClass *) klass;
- trans_class = (GstBaseTransformClass *) klass;
-
- gobject_class->set_property = gst_pixbufscale_set_property;
- gobject_class->get_property = gst_pixbufscale_get_property;
-
- g_object_class_install_property (gobject_class,
- ARG_METHOD,
- g_param_spec_enum ("method", "method", "method",
- GST_TYPE_PIXBUFSCALE_METHOD, GST_PIXBUFSCALE_BILINEAR,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- trans_class->transform_caps =
- GST_DEBUG_FUNCPTR (gst_pixbufscale_transform_caps);
- trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_pixbufscale_set_caps);
- trans_class->get_unit_size =
- GST_DEBUG_FUNCPTR (gst_pixbufscale_get_unit_size);
- trans_class->transform = GST_DEBUG_FUNCPTR (gst_pixbufscale_transform);
- trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_pixbufscale_fixate_caps);
- trans_class->passthrough_on_same_caps = TRUE;
-
- parent_class = g_type_class_peek_parent (klass);
-}
-
-static void
-gst_pixbufscale_init (GstPixbufScale * pixbufscale,
- GstPixbufScaleClass * kclass)
-{
- GstBaseTransform *trans;
-
- GST_DEBUG_OBJECT (pixbufscale, "_init");
- trans = GST_BASE_TRANSFORM (pixbufscale);
-
- gst_pad_set_event_function (trans->srcpad, gst_pixbufscale_handle_src_event);
-
- pixbufscale->method = GST_PIXBUFSCALE_TILES;
- pixbufscale->gdk_method = GDK_INTERP_TILES;
-}
-
-static void
-gst_pixbufscale_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstPixbufScale *src;
-
- g_return_if_fail (GST_IS_PIXBUFSCALE (object));
- src = GST_PIXBUFSCALE (object);
-
- switch (prop_id) {
- case ARG_METHOD:
- src->method = g_value_get_enum (value);
- switch (src->method) {
- case GST_PIXBUFSCALE_NEAREST:
- src->gdk_method = GDK_INTERP_NEAREST;
- break;
- case GST_PIXBUFSCALE_TILES:
- src->gdk_method = GDK_INTERP_TILES;
- break;
- case GST_PIXBUFSCALE_BILINEAR:
- src->gdk_method = GDK_INTERP_BILINEAR;
- break;
- case GST_PIXBUFSCALE_HYPER:
- src->gdk_method = GDK_INTERP_HYPER;
- break;
- }
- break;
- default:
- break;
- }
-}
-
-static void
-gst_pixbufscale_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstPixbufScale *src;
-
- g_return_if_fail (GST_IS_PIXBUFSCALE (object));
- src = GST_PIXBUFSCALE (object);
-
- switch (prop_id) {
- case ARG_METHOD:
- g_value_set_enum (value, src->method);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-
-static GstCaps *
-gst_pixbufscale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps)
-{
- GstCaps *ret;
- int i;
-
- ret = gst_caps_copy (caps);
-
- for (i = 0; i < gst_caps_get_size (ret); i++) {
- GstStructure *structure = gst_caps_get_structure (ret, i);
-
- gst_structure_set (structure,
- "width", GST_TYPE_INT_RANGE, 16, 4096,
- "height", GST_TYPE_INT_RANGE, 16, 4096, NULL);
- gst_structure_remove_field (structure, "pixel-aspect-ratio");
- }
-
- GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
- return ret;
-}
-
-static gboolean
-parse_caps (GstCaps * caps, gint * width, gint * height)
-{
- gboolean ret;
- GstStructure *structure;
-
- structure = gst_caps_get_structure (caps, 0);
- ret = gst_structure_get_int (structure, "width", width);
- ret &= gst_structure_get_int (structure, "height", height);
-
- return ret;
-}
-
-static gboolean
-gst_pixbufscale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
-{
- GstPixbufScale *pixbufscale;
- gboolean ret;
-
- pixbufscale = GST_PIXBUFSCALE (trans);
- ret = parse_caps (in, &pixbufscale->from_width, &pixbufscale->from_height);
- ret &= parse_caps (out, &pixbufscale->to_width, &pixbufscale->to_height);
- if (!ret)
- goto done;
-
- pixbufscale->from_stride = GST_ROUND_UP_4 (pixbufscale->from_width * 3);
- pixbufscale->from_buf_size =
- pixbufscale->from_stride * pixbufscale->from_height;
-
- pixbufscale->to_stride = GST_ROUND_UP_4 (pixbufscale->to_width * 3);
- pixbufscale->to_buf_size = pixbufscale->to_stride * pixbufscale->to_height;
-
- GST_DEBUG_OBJECT (pixbufscale, "from=%dx%d, size %d -> to=%dx%d, size %d",
- pixbufscale->from_width, pixbufscale->from_height,
- pixbufscale->from_buf_size, pixbufscale->to_width, pixbufscale->to_height,
- pixbufscale->to_buf_size);
-
-done:
- return ret;
-}
-
-
-static gboolean
-gst_pixbufscale_get_unit_size (GstBaseTransform * trans,
- GstCaps * caps, guint * size)
-{
- gint width, height;
-
- g_assert (size);
-
- if (!parse_caps (caps, &width, &height))
- return FALSE;
-
- *size = GST_ROUND_UP_4 (width * 3) * height;
-
- return TRUE;
-}
-
-static void
-gst_pixbufscale_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
- GstCaps * caps, GstCaps * othercaps)
-{
- GstStructure *ins, *outs;
- const GValue *from_par, *to_par;
-
- g_return_if_fail (gst_caps_is_fixed (caps));
-
- GST_DEBUG_OBJECT (base, "trying to fixate othercaps %" GST_PTR_FORMAT
- " based on caps %" GST_PTR_FORMAT, othercaps, caps);
-
- ins = gst_caps_get_structure (caps, 0);
- outs = gst_caps_get_structure (othercaps, 0);
-
- from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
- to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
-
- if (from_par && to_par) {
- GValue to_ratio = { 0, }; /* w/h of output video */
- int from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
- int count = 0, w = 0, h = 0, num, den;
-
- /* if both width and height are already fixed, we can't do anything
- * * about it anymore */
- if (gst_structure_get_int (outs, "width", &w))
- ++count;
- if (gst_structure_get_int (outs, "height", &h))
- ++count;
- if (count == 2) {
- GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
- w, h);
- return;
- }
-
- gst_structure_get_int (ins, "width", &from_w);
- gst_structure_get_int (ins, "height", &from_h);
- from_par_n = gst_value_get_fraction_numerator (from_par);
- from_par_d = gst_value_get_fraction_denominator (from_par);
- to_par_n = gst_value_get_fraction_numerator (to_par);
- to_par_d = gst_value_get_fraction_denominator (to_par);
-
- g_value_init (&to_ratio, GST_TYPE_FRACTION);
- gst_value_set_fraction (&to_ratio, from_w * from_par_n * to_par_d,
- from_h * from_par_d * to_par_n);
- num = gst_value_get_fraction_numerator (&to_ratio);
- den = gst_value_get_fraction_denominator (&to_ratio);
- GST_DEBUG_OBJECT (base,
- "scaling input with %dx%d and PAR %d/%d to output PAR %d/%d",
- from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
- GST_DEBUG_OBJECT (base,
- "resulting output should respect ratio of %d/%d", num, den);
-
- /* now find a width x height that respects this display ratio.
- * * prefer those that have one of w/h the same as the incoming video
- * * using wd / hd = num / den */
-
- /* start with same height, because of interlaced video */
- /* check hd / den is an integer scale factor, and scale wd with the PAR */
- if (from_h % den == 0) {
- GST_DEBUG_OBJECT (base, "keeping video height");
- h = from_h;
- w = h * num / den;
- } else if (from_w % num == 0) {
- GST_DEBUG_OBJECT (base, "keeping video width");
- w = from_w;
- h = w * den / num;
- } else {
- GST_DEBUG_OBJECT (base, "approximating but keeping video height");
- h = from_h;
- w = h * num / den;
- }
- GST_DEBUG_OBJECT (base, "scaling to %dx%d", w, h);
- /* now fixate */
- gst_structure_fixate_field_nearest_int (outs, "width", w);
- gst_structure_fixate_field_nearest_int (outs, "height", h);
- } else {
- gint width, height;
-
- if (gst_structure_get_int (ins, "width", &width)) {
- if (gst_structure_has_field (outs, "width")) {
- gst_structure_fixate_field_nearest_int (outs, "width", width);
- }
- }
- if (gst_structure_get_int (ins, "height", &height)) {
- if (gst_structure_has_field (outs, "height")) {
- gst_structure_fixate_field_nearest_int (outs, "height", height);
- }
- }
- }
-
- GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
-}
-
-static GstFlowReturn
-gst_pixbufscale_transform (GstBaseTransform * trans,
- GstBuffer * in, GstBuffer * out)
-{
- GstPixbufScale *scale;
- GdkPixbuf *src_pixbuf, *dest_pixbuf;
-
- scale = GST_PIXBUFSCALE (trans);
-
- src_pixbuf =
- gdk_pixbuf_new_from_data (GST_BUFFER_DATA (in), GDK_COLORSPACE_RGB, FALSE,
- 8, scale->from_width, scale->from_height,
- GST_RGB24_ROWSTRIDE (scale->from_width), NULL, NULL);
-
- dest_pixbuf =
- gdk_pixbuf_new_from_data (GST_BUFFER_DATA (out), GDK_COLORSPACE_RGB,
- FALSE, 8, scale->to_width, scale->to_height,
- GST_RGB24_ROWSTRIDE (scale->to_width), NULL, NULL);
-
- gdk_pixbuf_scale (src_pixbuf, dest_pixbuf, 0, 0,
- scale->to_width,
- scale->to_height, 0, 0,
- (double) scale->to_width / scale->from_width,
- (double) scale->to_height / scale->from_height, scale->gdk_method);
-
- g_object_unref (src_pixbuf);
- g_object_unref (dest_pixbuf);
-
- return GST_FLOW_OK;
-}
-
-static gboolean
-gst_pixbufscale_handle_src_event (GstPad * pad, GstEvent * event)
-{
- GstPixbufScale *pixbufscale;
- gboolean ret;
- double a;
- GstStructure *structure;
-
- pixbufscale = GST_PIXBUFSCALE (gst_pad_get_parent (pad));
-
- GST_DEBUG_OBJECT (pixbufscale, "handling %s event",
- GST_EVENT_TYPE_NAME (event));
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_NAVIGATION:
- event =
- GST_EVENT (gst_mini_object_make_writable (GST_MINI_OBJECT (event)));
-
- structure = (GstStructure *) gst_event_get_structure (event);
- if (gst_structure_get_double (structure, "pointer_x", &a)) {
- gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
- a * pixbufscale->from_width / pixbufscale->to_width, NULL);
- }
- if (gst_structure_get_double (structure, "pointer_y", &a)) {
- gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
- a * pixbufscale->from_height / pixbufscale->to_height, NULL);
- }
- break;
- default:
- break;
- }
-
- ret = gst_pad_event_default (pad, event);
-
- gst_object_unref (pixbufscale);
-
- return ret;
-}
-
-gboolean
-pixbufscale_init (GstPlugin * plugin)
-{
- if (!gst_element_register (plugin, "gdkpixbufscale", GST_RANK_NONE,
- GST_TYPE_PIXBUFSCALE))
- return FALSE;
-
- GST_DEBUG_CATEGORY_INIT (pixbufscale_debug, "gdkpixbufscale", 0,
- "pixbufscale element");
-
- return TRUE;
-}
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