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Original commit message from CVS: * ext/esd/esdmon.c: (gst_esdmon_depths_get_type), (gst_esdmon_channels_get_type): * ext/gconf/gstgconfaudiosink.c: (gst_gconf_profile_get_type): * ext/gdk_pixbuf/pixbufscale.c: (gst_pixbufscale_method_get_type): * ext/libcaca/gstcacasink.c: (gst_cacasink_dither_get_type): * ext/shout2/gstshout2.c: (gst_shout2send_protocol_get_type): * gst/alpha/gstalpha.c: (gst_alpha_method_get_type): * gst/rtp/gstrtpilbcdepay.c: (gst_ilbc_mode_get_type): * gst/rtsp/gstrtspsrc.c: (gst_rtsp_proto_get_type): * gst/videobox/gstvideobox.c: (gst_video_box_fill_get_type): * gst/videofilter/gstvideoflip.c: (gst_video_flip_method_get_type): * gst/videomixer/videomixer.c: (gst_video_mixer_background_get_type): Const-ify GEnumValue arrays.
496 lines
15 KiB
C
496 lines
15 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2004> Jan Schmidt <thaytan@mad.scientist.com>
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* Copyright (C) <2004> Tim-Philipp Mueller <t.i.m@orange.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <pixbufscale.h>
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#include <gst/video/video.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#define ROUND_UP_2(x) (((x)+1)&~1)
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#define ROUND_UP_4(x) (((x)+3)&~3)
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#define ROUND_UP_8(x) (((x)+7)&~7)
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/* These match the ones gstffmpegcolorspace uses (Tim) */
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#define GST_RGB24_ROWSTRIDE(width) (ROUND_UP_4 ((width)*3))
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#define GST_RGB24_SIZE(width,height) ((height)*GST_RGB24_ROWSTRIDE(width))
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GST_DEBUG_CATEGORY (pixbufscale_debug);
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#define GST_CAT_DEFAULT pixbufscale_debug
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/* elementfactory information */
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static const GstElementDetails pixbufscale_details =
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GST_ELEMENT_DETAILS ("GdkPixbuf image scaler",
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"Filter/Effect/Video",
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"Resizes video",
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"Jan Schmidt <thaytan@mad.scientist.com>\n"
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"Wim Taymans <wim.taymans@chello.be>\n"
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"Renato Filho <renato.filho@indt.org.br>");
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/* GstPixbufScale signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_METHOD
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/* FILL ME */
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};
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static GstStaticPadTemplate gst_pixbufscale_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
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);
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static GstStaticPadTemplate gst_pixbufscale_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
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);
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#define GST_TYPE_PIXBUFSCALE_METHOD (gst_pixbufscale_method_get_type())
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static GType
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gst_pixbufscale_method_get_type (void)
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{
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static GType pixbufscale_method_type = 0;
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static const GEnumValue pixbufscale_methods[] = {
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{GST_PIXBUFSCALE_NEAREST, "0", "Nearest Neighbour"},
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{GST_PIXBUFSCALE_TILES, "1", "Tiles"},
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{GST_PIXBUFSCALE_BILINEAR, "2", "Bilinear"},
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{GST_PIXBUFSCALE_HYPER, "3", "Hyper"},
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{0, NULL, NULL},
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};
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if (!pixbufscale_method_type) {
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pixbufscale_method_type =
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g_enum_register_static ("GstPixbufScaleMethod", pixbufscale_methods);
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}
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return pixbufscale_method_type;
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}
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static void gst_pixbufscale_base_init (gpointer g_class);
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static void gst_pixbufscale_class_init (GstPixbufScaleClass * klass);
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static void gst_pixbufscale_init (GstPixbufScale * pixbufscale,
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GstPixbufScaleClass * kclass);
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static void gst_pixbufscale_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_pixbufscale_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstCaps *gst_pixbufscale_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_pixbufscale_set_caps (GstBaseTransform * trans,
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GstCaps * in, GstCaps * out);
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static gboolean gst_pixbufscale_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, guint * size);
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static void gst_pixbufscale_fixate_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
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static GstFlowReturn gst_pixbufscale_transform (GstBaseTransform * trans,
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GstBuffer * in, GstBuffer * out);
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static gboolean gst_pixbufscale_handle_src_event (GstPad * pad,
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GstEvent * event);
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static gboolean parse_caps (GstCaps * caps, gint * width, gint * height);
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GST_BOILERPLATE (GstPixbufScale, gst_pixbufscale, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM);
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static void
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gst_pixbufscale_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (element_class, &pixbufscale_details);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_pixbufscale_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_pixbufscale_sink_template));
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}
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static void
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gst_pixbufscale_class_init (GstPixbufScaleClass * klass)
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{
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GObjectClass *gobject_class;
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GstBaseTransformClass *trans_class;
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gobject_class = (GObjectClass *) klass;
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trans_class = (GstBaseTransformClass *) klass;
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gobject_class->set_property = gst_pixbufscale_set_property;
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gobject_class->get_property = gst_pixbufscale_get_property;
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g_object_class_install_property (gobject_class,
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ARG_METHOD,
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g_param_spec_enum ("method", "method", "method",
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GST_TYPE_PIXBUFSCALE_METHOD, GST_PIXBUFSCALE_BILINEAR,
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G_PARAM_READWRITE));
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trans_class->transform_caps =
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GST_DEBUG_FUNCPTR (gst_pixbufscale_transform_caps);
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trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_pixbufscale_set_caps);
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trans_class->get_unit_size =
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GST_DEBUG_FUNCPTR (gst_pixbufscale_get_unit_size);
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trans_class->transform = GST_DEBUG_FUNCPTR (gst_pixbufscale_transform);
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trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_pixbufscale_fixate_caps);
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trans_class->passthrough_on_same_caps = TRUE;
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parent_class = g_type_class_peek_parent (klass);
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}
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static void
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gst_pixbufscale_init (GstPixbufScale * pixbufscale,
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GstPixbufScaleClass * kclass)
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{
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GstBaseTransform *trans;
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GST_DEBUG_OBJECT (pixbufscale, "_init");
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trans = GST_BASE_TRANSFORM (pixbufscale);
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gst_pad_set_event_function (trans->srcpad, gst_pixbufscale_handle_src_event);
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pixbufscale->method = GST_PIXBUFSCALE_TILES;
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pixbufscale->gdk_method = GDK_INTERP_TILES;
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}
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static void
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gst_pixbufscale_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstPixbufScale *src;
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g_return_if_fail (GST_IS_PIXBUFSCALE (object));
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src = GST_PIXBUFSCALE (object);
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switch (prop_id) {
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case ARG_METHOD:
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src->method = g_value_get_enum (value);
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switch (src->method) {
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case GST_PIXBUFSCALE_NEAREST:
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src->gdk_method = GDK_INTERP_NEAREST;
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break;
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case GST_PIXBUFSCALE_TILES:
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src->gdk_method = GDK_INTERP_TILES;
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break;
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case GST_PIXBUFSCALE_BILINEAR:
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src->gdk_method = GDK_INTERP_BILINEAR;
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break;
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case GST_PIXBUFSCALE_HYPER:
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src->gdk_method = GDK_INTERP_HYPER;
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break;
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}
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break;
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default:
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break;
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}
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}
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static void
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gst_pixbufscale_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstPixbufScale *src;
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g_return_if_fail (GST_IS_PIXBUFSCALE (object));
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src = GST_PIXBUFSCALE (object);
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switch (prop_id) {
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case ARG_METHOD:
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g_value_set_enum (value, src->method);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstCaps *
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gst_pixbufscale_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps)
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{
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GstPixbufScale *pixbufscale;
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GstCaps *ret;
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int i;
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pixbufscale = GST_PIXBUFSCALE (trans);
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ret = gst_caps_copy (caps);
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for (i = 0; i < gst_caps_get_size (ret); i++) {
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GstStructure *structure = gst_caps_get_structure (ret, i);
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 16, 4096,
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"height", GST_TYPE_INT_RANGE, 16, 4096, NULL);
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gst_structure_remove_field (structure, "pixel-aspect-ratio");
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}
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GST_DEBUG_OBJECT (trans, "returning caps: %", ret);
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return ret;
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}
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static gboolean
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parse_caps (GstCaps * caps, gint * width, gint * height)
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{
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gboolean ret;
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GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "width", width);
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ret &= gst_structure_get_int (structure, "height", height);
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return ret;
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}
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static gboolean
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gst_pixbufscale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
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{
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GstPixbufScale *pixbufscale;
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gboolean ret;
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pixbufscale = GST_PIXBUFSCALE (trans);
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ret = parse_caps (in, &pixbufscale->from_width, &pixbufscale->from_height);
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ret &= parse_caps (out, &pixbufscale->to_width, &pixbufscale->to_height);
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if (!ret)
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goto done;
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pixbufscale->from_stride = GST_ROUND_UP_4 (pixbufscale->from_width * 3);
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pixbufscale->from_buf_size =
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pixbufscale->from_stride * pixbufscale->from_height;
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pixbufscale->to_stride = GST_ROUND_UP_4 (pixbufscale->to_width * 3);
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pixbufscale->to_buf_size = pixbufscale->to_stride * pixbufscale->to_height;
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GST_DEBUG_OBJECT (pixbufscale, "from=%dx%d, size %d -> to=%dx%d, size %d",
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pixbufscale->from_width, pixbufscale->from_height,
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pixbufscale->from_buf_size, pixbufscale->to_width, pixbufscale->to_height,
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pixbufscale->to_buf_size);
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done:
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return ret;
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}
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static gboolean
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gst_pixbufscale_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, guint * size)
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{
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GstPixbufScale *pixbufscale;
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gint width, height;
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g_return_val_if_fail (size, FALSE);
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pixbufscale = GST_PIXBUFSCALE (trans);
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if (!parse_caps (caps, &width, &height))
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return FALSE;
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*size = GST_ROUND_UP_4 (width * 3) * height;
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return TRUE;
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}
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static void
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gst_pixbufscale_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
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GstCaps * caps, GstCaps * othercaps)
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{
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GstStructure *ins, *outs;
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const GValue *from_par, *to_par;
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g_return_if_fail (gst_caps_is_fixed (caps));
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GST_DEBUG_OBJECT (base, "trying to fixate othercaps %" GST_PTR_FORMAT
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" based on caps %" GST_PTR_FORMAT, othercaps, caps);
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ins = gst_caps_get_structure (caps, 0);
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outs = gst_caps_get_structure (othercaps, 0);
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from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
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to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
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if (from_par && to_par) {
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GValue to_ratio = { 0, }; /* w/h of output video */
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int from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
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int count = 0, w = 0, h = 0, num, den;
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/* if both width and height are already fixed, we can't do anything
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* * about it anymore */
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if (gst_structure_get_int (outs, "width", &w))
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++count;
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if (gst_structure_get_int (outs, "height", &h))
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++count;
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if (count == 2) {
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GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
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w, h);
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return;
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}
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gst_structure_get_int (ins, "width", &from_w);
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gst_structure_get_int (ins, "height", &from_h);
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from_par_n = gst_value_get_fraction_numerator (from_par);
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from_par_d = gst_value_get_fraction_denominator (from_par);
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to_par_n = gst_value_get_fraction_numerator (to_par);
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to_par_d = gst_value_get_fraction_denominator (to_par);
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g_value_init (&to_ratio, GST_TYPE_FRACTION);
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gst_value_set_fraction (&to_ratio, from_w * from_par_n * to_par_d,
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from_h * from_par_d * to_par_n);
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num = gst_value_get_fraction_numerator (&to_ratio);
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den = gst_value_get_fraction_denominator (&to_ratio);
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GST_DEBUG_OBJECT (base,
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"scaling input with %dx%d and PAR %d/%d to output PAR %d/%d",
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from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
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GST_DEBUG_OBJECT (base,
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"resulting output should respect ratio of %d/%d", num, den);
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/* now find a width x height that respects this display ratio.
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* * prefer those that have one of w/h the same as the incoming video
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* * using wd / hd = num / den */
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/* start with same height, because of interlaced video */
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/* check hd / den is an integer scale factor, and scale wd with the PAR */
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if (from_h % den == 0) {
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GST_DEBUG_OBJECT (base, "keeping video height");
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h = from_h;
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w = h * num / den;
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} else if (from_w % num == 0) {
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GST_DEBUG_OBJECT (base, "keeping video width");
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w = from_w;
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h = w * den / num;
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} else {
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GST_DEBUG_OBJECT (base, "approximating but keeping video height");
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h = from_h;
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w = h * num / den;
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}
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GST_DEBUG_OBJECT (base, "scaling to %dx%d", w, h);
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/* now fixate */
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gst_structure_fixate_field_nearest_int (outs, "width", w);
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gst_structure_fixate_field_nearest_int (outs, "height", h);
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} else {
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gint width, height;
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if (gst_structure_get_int (ins, "width", &width)) {
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if (gst_structure_has_field (outs, "width")) {
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gst_structure_fixate_field_nearest_int (outs, "width", width);
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}
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}
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if (gst_structure_get_int (ins, "height", &height)) {
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if (gst_structure_has_field (outs, "height")) {
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gst_structure_fixate_field_nearest_int (outs, "height", height);
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}
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}
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}
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GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
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}
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static GstFlowReturn
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gst_pixbufscale_transform (GstBaseTransform * trans,
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GstBuffer * in, GstBuffer * out)
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{
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GstPixbufScale *scale;
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GdkPixbuf *src_pixbuf, *dest_pixbuf;
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scale = GST_PIXBUFSCALE (trans);
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src_pixbuf =
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gdk_pixbuf_new_from_data (GST_BUFFER_DATA (in), GDK_COLORSPACE_RGB, FALSE,
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8, scale->from_width, scale->from_height,
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GST_RGB24_ROWSTRIDE (scale->from_width), NULL, NULL);
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dest_pixbuf =
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gdk_pixbuf_new_from_data (GST_BUFFER_DATA (out), GDK_COLORSPACE_RGB,
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FALSE, 8, scale->to_width, scale->to_height,
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GST_RGB24_ROWSTRIDE (scale->to_width), NULL, NULL);
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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;
|
|
}
|