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805 lines
24 KiB
C
805 lines
24 KiB
C
/* GStreamer
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* Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-smptealpha
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* @title: smptealpha
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*
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* smptealpha can accept an I420 or AYUV video stream. An alpha channel is added
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* using an effect specific SMPTE mask in the I420 input case. In the AYUV case,
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* the alpha channel is modified using the effect specific SMPTE mask.
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*
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* The #GstSMPTEAlpha:position property is a controllabe double between 0.0 and
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* 1.0 that specifies the position in the transition. 0.0 is the start of the
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* transition with the alpha channel to complete opaque where 1.0 has the alpha
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* channel set to completely transparent.
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*
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* The #GstSMPTEAlpha:depth property defines the precision in bits of the mask.
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* A higher presision will create a mask with smoother gradients in order to
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* avoid banding.
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*
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* ## Sample pipelines
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*
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* Here is a pipeline to demonstrate the smpte transition :
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* |[
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* gst-launch-1.0 -v videotestsrc ! smptealpha border=20000 type=44
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* position=0.5 ! videomixer ! videoconvert ! ximagesink
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* ]|
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* This shows a midway bowtie-h transition a from a videotestsrc to a
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* transparent image. The edges of the transition are smoothed with a
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* 20000 big border.
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*
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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 <string.h>
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#include "gstsmptealpha.h"
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#include "paint.h"
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GST_DEBUG_CATEGORY_STATIC (gst_smpte_alpha_debug);
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#define GST_CAT_DEFAULT gst_smpte_alpha_debug
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static GstStaticPadTemplate gst_smpte_alpha_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_MAKE ("AYUV") ";"
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GST_VIDEO_CAPS_MAKE ("ARGB") ";" GST_VIDEO_CAPS_MAKE ("BGRA") ";"
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GST_VIDEO_CAPS_MAKE ("RGBA") ";" GST_VIDEO_CAPS_MAKE ("ARGB"))
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);
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static GstStaticPadTemplate gst_smpte_alpha_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_MAKE ("I420") ";"
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GST_VIDEO_CAPS_MAKE ("YV12")
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";" GST_VIDEO_CAPS_MAKE ("AYUV")
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";" GST_VIDEO_CAPS_MAKE ("ARGB") ";" GST_VIDEO_CAPS_MAKE ("BGRA")
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";" GST_VIDEO_CAPS_MAKE ("RGBA") ";" GST_VIDEO_CAPS_MAKE ("ARGB"))
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);
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/* SMPTE signals and properties */
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#define DEFAULT_PROP_TYPE 1
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#define DEFAULT_PROP_BORDER 0
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#define DEFAULT_PROP_DEPTH 16
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#define DEFAULT_PROP_POSITION 0.0
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#define DEFAULT_PROP_INVERT FALSE
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enum
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{
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PROP_0,
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PROP_TYPE,
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PROP_BORDER,
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PROP_DEPTH,
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PROP_POSITION,
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PROP_INVERT
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};
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#define AYUV_SIZE(w,h) ((w) * (h) * 4)
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#define GST_TYPE_SMPTE_TRANSITION_TYPE (gst_smpte_alpha_transition_type_get_type())
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static GType
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gst_smpte_alpha_transition_type_get_type (void)
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{
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static GType smpte_transition_type = 0;
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GEnumValue *smpte_transitions;
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if (!smpte_transition_type) {
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const GList *definitions;
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gint i = 0;
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definitions = gst_mask_get_definitions ();
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smpte_transitions =
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g_new0 (GEnumValue, g_list_length ((GList *) definitions) + 1);
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while (definitions) {
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GstMaskDefinition *definition = (GstMaskDefinition *) definitions->data;
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definitions = g_list_next (definitions);
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smpte_transitions[i].value = definition->type;
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/* older GLib versions have the two fields as non-const, hence the cast */
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smpte_transitions[i].value_nick = (gchar *) definition->short_name;
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smpte_transitions[i].value_name = (gchar *) definition->long_name;
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i++;
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}
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smpte_transition_type =
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g_enum_register_static ("GstSMPTEAlphaTransitionType",
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smpte_transitions);
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}
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return smpte_transition_type;
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}
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static void gst_smpte_alpha_finalize (GstSMPTEAlpha * smpte);
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static void gst_smpte_alpha_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_smpte_alpha_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_smpte_alpha_set_info (GstVideoFilter * vfilter,
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GstCaps * incaps, GstVideoInfo * in_info,
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GstCaps * outcaps, GstVideoInfo * out_info);
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static GstFlowReturn gst_smpte_alpha_transform_frame (GstVideoFilter * vfilter,
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GstVideoFrame * in_frame, GstVideoFrame * out_frame);
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static void gst_smpte_alpha_before_transform (GstBaseTransform * trans,
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GstBuffer * buf);
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static GstCaps *gst_smpte_alpha_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * from, GstCaps * filter);
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#define gst_smpte_alpha_parent_class parent_class
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G_DEFINE_TYPE (GstSMPTEAlpha, gst_smpte_alpha, GST_TYPE_VIDEO_FILTER);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (smptealpha, "smptealpha", GST_RANK_NONE,
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GST_TYPE_SMPTE_ALPHA, GST_DEBUG_CATEGORY_INIT (gst_smpte_alpha_debug,
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"smptealpha", 0, "SMPTE alpha effect"));
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static void
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gst_smpte_alpha_class_init (GstSMPTEAlphaClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstElementClass *element_class = (GstElementClass *) (klass);
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GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
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GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
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gobject_class->set_property = gst_smpte_alpha_set_property;
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gobject_class->get_property = gst_smpte_alpha_get_property;
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gobject_class->finalize = (GObjectFinalizeFunc) gst_smpte_alpha_finalize;
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_gst_mask_init ();
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TYPE,
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g_param_spec_enum ("type", "Type", "The type of transition to use",
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GST_TYPE_SMPTE_TRANSITION_TYPE, DEFAULT_PROP_TYPE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BORDER,
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g_param_spec_int ("border", "Border",
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"The border width of the transition", 0, G_MAXINT,
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DEFAULT_PROP_BORDER,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEPTH,
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g_param_spec_int ("depth", "Depth", "Depth of the mask in bits", 1, 24,
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DEFAULT_PROP_DEPTH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_POSITION,
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g_param_spec_double ("position", "Position",
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"Position of the transition effect", 0.0, 1.0, DEFAULT_PROP_POSITION,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstSMPTEAlpha:invert:
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*
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* Set to TRUE to invert the transition mask (ie. flip it horizontally).
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_INVERT,
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g_param_spec_boolean ("invert", "Invert",
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"Invert transition mask", DEFAULT_PROP_POSITION,
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GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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trans_class->before_transform =
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GST_DEBUG_FUNCPTR (gst_smpte_alpha_before_transform);
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trans_class->transform_caps =
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GST_DEBUG_FUNCPTR (gst_smpte_alpha_transform_caps);
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vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_smpte_alpha_set_info);
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vfilter_class->transform_frame =
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GST_DEBUG_FUNCPTR (gst_smpte_alpha_transform_frame);
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gst_element_class_add_static_pad_template (element_class,
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&gst_smpte_alpha_sink_template);
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gst_element_class_add_static_pad_template (element_class,
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&gst_smpte_alpha_src_template);
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gst_element_class_set_static_metadata (element_class, "SMPTE transitions",
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"Filter/Editor/Video",
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"Apply the standard SMPTE transitions as alpha on video images",
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"Wim Taymans <wim.taymans@gmail.com>");
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gst_type_mark_as_plugin_api (GST_TYPE_SMPTE_TRANSITION_TYPE, 0);
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}
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static gboolean
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gst_smpte_alpha_update_mask (GstSMPTEAlpha * smpte, gint type,
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gboolean invert, gint depth, gint width, gint height)
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{
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GstMask *newmask;
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/* try to avoid regenerating the mask if we already have one that is
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* correct */
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if (smpte->mask) {
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if (smpte->type == type &&
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smpte->invert == invert &&
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smpte->depth == depth &&
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smpte->width == width && smpte->height == height)
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return TRUE;
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}
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smpte->type = type;
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smpte->invert = invert;
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smpte->depth = depth;
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smpte->width = width;
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smpte->height = height;
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/* Not negotiated yet */
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if (width == 0 || height == 0) {
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return TRUE;
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}
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newmask = gst_mask_factory_new (type, invert, depth, width, height);
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if (!newmask)
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goto mask_failed;
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if (smpte->mask)
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gst_mask_destroy (smpte->mask);
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smpte->mask = newmask;
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return TRUE;
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/* ERRORS */
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mask_failed:
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{
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GST_ERROR_OBJECT (smpte, "failed to create a mask");
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return FALSE;
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}
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}
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static void
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gst_smpte_alpha_init (GstSMPTEAlpha * smpte)
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{
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smpte->type = DEFAULT_PROP_TYPE;
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smpte->border = DEFAULT_PROP_BORDER;
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smpte->depth = DEFAULT_PROP_DEPTH;
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smpte->position = DEFAULT_PROP_POSITION;
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smpte->invert = DEFAULT_PROP_INVERT;
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}
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#define CREATE_ARGB_FUNC(name, A, R, G, B) \
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static void \
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gst_smpte_alpha_process_##name##_##name (GstSMPTEAlpha * smpte, \
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const GstVideoFrame * in_frame, GstVideoFrame * out_frame, GstMask * mask, \
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gint border, gint pos) \
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{ \
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gint i, j; \
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const guint32 *maskp; \
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gint value; \
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gint min, max; \
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gint width, height; \
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guint8 *in, *out; \
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gint src_wrap, dest_wrap; \
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\
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if (border == 0) \
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border++; \
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\
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min = pos - border; \
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max = pos; \
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GST_DEBUG_OBJECT (smpte, "pos %d, min %d, max %d, border %d", pos, min, max, \
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border); \
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\
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maskp = mask->data; \
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\
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width = GST_VIDEO_FRAME_WIDTH (out_frame); \
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height = GST_VIDEO_FRAME_HEIGHT (out_frame); \
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\
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in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0); \
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out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0); \
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src_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0) - (width << 2); \
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dest_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0) - (width << 2); \
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\
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/* we basically copy the source to dest but we scale the alpha channel with \
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* the mask */ \
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for (i = 0; i < height; i++) { \
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for (j = 0; j < width; j++) { \
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value = *maskp++; \
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out[A] = (in[A] * ((CLAMP (value, min, max) - min) << 8) / border) >> 8; \
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out[R] = in[R]; \
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out[G] = in[G]; \
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out[B] = in[B]; \
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out += 4; \
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in += 4; \
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} \
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in += src_wrap; \
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out += dest_wrap; \
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} \
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}
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CREATE_ARGB_FUNC (argb, 0, 1, 2, 3);
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CREATE_ARGB_FUNC (bgra, 3, 2, 1, 0);
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CREATE_ARGB_FUNC (abgr, 0, 3, 2, 1);
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CREATE_ARGB_FUNC (rgba, 3, 0, 1, 2);
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static void
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gst_smpte_alpha_process_ayuv_ayuv (GstSMPTEAlpha * smpte,
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const GstVideoFrame * in_frame, GstVideoFrame * out_frame, GstMask * mask,
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gint border, gint pos)
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{
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gint i, j;
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const guint32 *maskp;
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gint value;
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gint min, max;
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gint width, height;
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guint8 *in, *out;
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gint src_wrap, dest_wrap;
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if (border == 0)
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border++;
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min = pos - border;
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max = pos;
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GST_DEBUG_OBJECT (smpte, "pos %d, min %d, max %d, border %d", pos, min, max,
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border);
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maskp = mask->data;
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width = GST_VIDEO_FRAME_WIDTH (out_frame);
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height = GST_VIDEO_FRAME_HEIGHT (out_frame);
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in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
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out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
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src_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0) - (width << 2);
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dest_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0) - (width << 2);
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/* we basically copy the source to dest but we scale the alpha channel with
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* the mask */
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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value = *maskp++;
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*out++ = (*in++ * ((CLAMP (value, min, max) - min) << 8) / border) >> 8;
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*out++ = *in++;
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*out++ = *in++;
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*out++ = *in++;
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}
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in += src_wrap;
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out += dest_wrap;
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}
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}
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static void
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gst_smpte_alpha_process_i420_ayuv (GstSMPTEAlpha * smpte,
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const GstVideoFrame * in_frame, GstVideoFrame * out_frame, GstMask * mask,
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gint border, gint pos)
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{
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const guint8 *srcY;
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const guint8 *srcU;
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const guint8 *srcV;
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guint8 *out;
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gint i, j;
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gint src_wrap, src_u_wrap, src_v_wrap, dest_wrap;
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gint y_stride, u_stride, v_stride;
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gboolean odd_width;
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const guint32 *maskp;
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gint value;
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gint min, max;
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gint width, height;
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if (border == 0)
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border++;
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min = pos - border;
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max = pos;
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GST_DEBUG_OBJECT (smpte, "pos %d, min %d, max %d, border %d", pos, min, max,
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border);
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maskp = mask->data;
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width = GST_VIDEO_FRAME_WIDTH (out_frame);
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height = GST_VIDEO_FRAME_HEIGHT (out_frame);
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y_stride = GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 0);
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u_stride = GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 1);
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v_stride = GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 2);
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src_wrap = y_stride - width;
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src_u_wrap = u_stride - (width / 2);
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src_v_wrap = v_stride - (width / 2);
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srcY = GST_VIDEO_FRAME_COMP_DATA (in_frame, 0);
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srcU = GST_VIDEO_FRAME_COMP_DATA (in_frame, 1);
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srcV = GST_VIDEO_FRAME_COMP_DATA (in_frame, 2);
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out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
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dest_wrap = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0) - (width << 2);
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odd_width = (width % 2 != 0);
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for (i = 0; i < height; i++) {
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for (j = 0; j < width / 2; j++) {
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value = *maskp++;
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*out++ = (0xff * ((CLAMP (value, min, max) - min) << 8) / border) >> 8;
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*out++ = *srcY++;
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*out++ = *srcU;
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*out++ = *srcV;
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value = *maskp++;
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*out++ = (0xff * ((CLAMP (value, min, max) - min) << 8) / border) >> 8;
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*out++ = *srcY++;
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*out++ = *srcU++;
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*out++ = *srcV++;
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}
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/* Might have one odd column left to do */
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if (odd_width) {
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value = *maskp++;
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*out++ = (0xff * ((CLAMP (value, min, max) - min) << 8) / border) >> 8;
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*out++ = *srcY++;
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*out++ = *srcU;
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*out++ = *srcV;
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}
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if (i % 2 == 0) {
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srcU -= width / 2;
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srcV -= width / 2;
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} else {
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srcU += src_u_wrap;
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srcV += src_v_wrap;
|
|
}
|
|
srcY += src_wrap;
|
|
out += dest_wrap;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_smpte_alpha_before_transform (GstBaseTransform * trans, GstBuffer * buf)
|
|
{
|
|
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (trans);
|
|
GstClockTime timestamp, stream_time;
|
|
|
|
/* first sync the controller to the current stream_time of the buffer */
|
|
timestamp = GST_BUFFER_TIMESTAMP (buf);
|
|
stream_time =
|
|
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
|
|
|
|
GST_DEBUG_OBJECT (smpte, "sync to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (timestamp));
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (stream_time))
|
|
gst_object_sync_values (GST_OBJECT (smpte), stream_time);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_smpte_alpha_transform_frame (GstVideoFilter * vfilter,
|
|
GstVideoFrame * in_frame, GstVideoFrame * out_frame)
|
|
{
|
|
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (vfilter);
|
|
gdouble position;
|
|
gint border;
|
|
|
|
if (G_UNLIKELY (!smpte->process))
|
|
goto not_negotiated;
|
|
|
|
GST_OBJECT_LOCK (smpte);
|
|
position = smpte->position;
|
|
border = smpte->border;
|
|
|
|
/* run the type specific filter code */
|
|
smpte->process (smpte, in_frame, out_frame,
|
|
smpte->mask, border, ((1 << smpte->depth) + border) * position);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
not_negotiated:
|
|
{
|
|
GST_ELEMENT_ERROR (smpte, CORE, NEGOTIATION, (NULL),
|
|
("No input format negotiated"));
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_smpte_alpha_transform_caps (GstBaseTransform * trans,
|
|
GstPadDirection direction, GstCaps * from, GstCaps * filter)
|
|
{
|
|
GstCaps *result, *tmp_caps, *tmpl_caps = NULL;
|
|
gint i, j;
|
|
|
|
tmp_caps = gst_caps_new_empty ();
|
|
|
|
for (i = 0; i < gst_caps_get_size (from); i++) {
|
|
GstStructure *structure;
|
|
const GValue *val, *lval;
|
|
GValue list = { 0, };
|
|
GValue aval = { 0, };
|
|
const gchar *str;
|
|
|
|
structure = gst_structure_copy (gst_caps_get_structure (from, i));
|
|
/* we can transform I420 to AYUV,
|
|
* so need to locate and substitute AYUV for the both of them */
|
|
val = gst_structure_get_value (structure, "format");
|
|
if (val && GST_VALUE_HOLDS_LIST (val)) {
|
|
gboolean seen_ayuv = FALSE, seen_i420 = FALSE;
|
|
|
|
g_value_init (&list, GST_TYPE_LIST);
|
|
for (j = 0; j < gst_value_list_get_size (val); j++) {
|
|
lval = gst_value_list_get_value (val, j);
|
|
if ((str = g_value_get_string (lval))) {
|
|
if (strcmp (str, "AYUV") == 0) {
|
|
seen_ayuv = TRUE;
|
|
} else if (strcmp (str, "I420") == 0) {
|
|
seen_i420 = TRUE;
|
|
}
|
|
}
|
|
}
|
|
if (seen_ayuv && !seen_i420) {
|
|
str = "I420";
|
|
} else if (seen_i420 && !seen_ayuv) {
|
|
str = "AYUV";
|
|
} else
|
|
str = NULL;
|
|
if (str) {
|
|
g_value_copy (val, &list);
|
|
g_value_init (&aval, G_TYPE_STRING);
|
|
g_value_set_string (&aval, str);
|
|
gst_value_list_append_value (&list, &aval);
|
|
g_value_reset (&aval);
|
|
gst_structure_set_value (structure, "format", &list);
|
|
g_value_unset (&list);
|
|
}
|
|
} else if (val && G_VALUE_HOLDS_STRING (val)) {
|
|
if ((str = g_value_get_string (val)) &&
|
|
((strcmp (str, "AYUV") == 0) || (strcmp (str, "I420") == 0))) {
|
|
g_value_init (&list, GST_TYPE_LIST);
|
|
g_value_init (&aval, G_TYPE_STRING);
|
|
g_value_set_string (&aval, "AYUV");
|
|
gst_value_list_append_value (&list, &aval);
|
|
g_value_reset (&aval);
|
|
g_value_set_string (&aval, "I420");
|
|
gst_value_list_append_value (&list, &aval);
|
|
g_value_reset (&aval);
|
|
gst_structure_set_value (structure, "format", &list);
|
|
g_value_unset (&list);
|
|
}
|
|
} else {
|
|
gst_structure_remove_field (structure, "format");
|
|
}
|
|
|
|
gst_structure_remove_field (structure, "colorimetry");
|
|
gst_structure_remove_field (structure, "chroma-site");
|
|
|
|
gst_caps_append_structure (tmp_caps, structure);
|
|
}
|
|
|
|
/* Get the appropriate template */
|
|
if (direction == GST_PAD_SINK) {
|
|
tmpl_caps =
|
|
gst_static_pad_template_get_caps (&gst_smpte_alpha_src_template);
|
|
} else if (direction == GST_PAD_SRC) {
|
|
tmpl_caps =
|
|
gst_static_pad_template_get_caps (&gst_smpte_alpha_sink_template);
|
|
} else {
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
/* Intersect with our template caps */
|
|
result = gst_caps_intersect (tmp_caps, tmpl_caps);
|
|
gst_caps_unref (tmpl_caps);
|
|
gst_caps_unref (tmp_caps);
|
|
|
|
result = gst_caps_simplify (result);
|
|
|
|
GST_LOG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT,
|
|
from, result);
|
|
|
|
if (filter) {
|
|
GstCaps *intersection;
|
|
|
|
GST_DEBUG_OBJECT (trans, "Using filter caps %" GST_PTR_FORMAT, filter);
|
|
intersection =
|
|
gst_caps_intersect_full (filter, result, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (result);
|
|
result = intersection;
|
|
GST_DEBUG_OBJECT (trans, "Intersection %" GST_PTR_FORMAT, result);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static gboolean
|
|
gst_smpte_alpha_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
|
|
GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
|
|
{
|
|
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (vfilter);
|
|
gboolean ret;
|
|
|
|
smpte->process = NULL;
|
|
smpte->in_format = GST_VIDEO_INFO_FORMAT (in_info);
|
|
smpte->out_format = GST_VIDEO_INFO_FORMAT (out_info);
|
|
|
|
/* try to update the mask now, this will also adjust the width/height on
|
|
* success */
|
|
GST_OBJECT_LOCK (smpte);
|
|
ret =
|
|
gst_smpte_alpha_update_mask (smpte, smpte->type, smpte->invert,
|
|
smpte->depth, GST_VIDEO_INFO_WIDTH (out_info),
|
|
GST_VIDEO_INFO_HEIGHT (out_info));
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
|
|
if (!ret)
|
|
goto mask_failed;
|
|
|
|
switch (smpte->out_format) {
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
switch (smpte->in_format) {
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
smpte->process = gst_smpte_alpha_process_ayuv_ayuv;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
smpte->process = gst_smpte_alpha_process_i420_ayuv;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
switch (smpte->in_format) {
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
smpte->process = gst_smpte_alpha_process_argb_argb;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
switch (smpte->in_format) {
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
smpte->process = gst_smpte_alpha_process_rgba_rgba;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
switch (smpte->in_format) {
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
smpte->process = gst_smpte_alpha_process_abgr_abgr;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
switch (smpte->in_format) {
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
smpte->process = gst_smpte_alpha_process_bgra_bgra;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
mask_failed:
|
|
{
|
|
GST_ERROR_OBJECT (smpte, "failed creating the mask");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_smpte_alpha_finalize (GstSMPTEAlpha * smpte)
|
|
{
|
|
if (smpte->mask)
|
|
gst_mask_destroy (smpte->mask);
|
|
smpte->mask = NULL;
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) smpte);
|
|
}
|
|
|
|
static void
|
|
gst_smpte_alpha_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstSMPTEAlpha *smpte = GST_SMPTE_ALPHA (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_TYPE:{
|
|
gint type;
|
|
|
|
type = g_value_get_enum (value);
|
|
|
|
GST_OBJECT_LOCK (smpte);
|
|
gst_smpte_alpha_update_mask (smpte, type, smpte->invert,
|
|
smpte->depth, smpte->width, smpte->height);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
}
|
|
case PROP_BORDER:
|
|
GST_OBJECT_LOCK (smpte);
|
|
smpte->border = g_value_get_int (value);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_DEPTH:{
|
|
gint depth;
|
|
|
|
depth = g_value_get_int (value);
|
|
|
|
GST_OBJECT_LOCK (smpte);
|
|
gst_smpte_alpha_update_mask (smpte, smpte->type, smpte->invert,
|
|
depth, smpte->width, smpte->height);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
}
|
|
case PROP_POSITION:
|
|
GST_OBJECT_LOCK (smpte);
|
|
smpte->position = g_value_get_double (value);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_INVERT:{
|
|
gboolean invert;
|
|
|
|
invert = g_value_get_boolean (value);
|
|
GST_OBJECT_LOCK (smpte);
|
|
gst_smpte_alpha_update_mask (smpte, smpte->type, invert,
|
|
smpte->depth, smpte->width, smpte->height);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
}
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_smpte_alpha_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstSMPTEAlpha *smpte;
|
|
|
|
smpte = GST_SMPTE_ALPHA (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_TYPE:
|
|
GST_OBJECT_LOCK (smpte);
|
|
g_value_set_enum (value, smpte->type);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_BORDER:
|
|
GST_OBJECT_LOCK (smpte);
|
|
g_value_set_int (value, smpte->border);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_DEPTH:
|
|
GST_OBJECT_LOCK (smpte);
|
|
g_value_set_int (value, smpte->depth);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_POSITION:
|
|
GST_OBJECT_LOCK (smpte);
|
|
g_value_set_double (value, smpte->position);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
case PROP_INVERT:
|
|
GST_OBJECT_LOCK (smpte);
|
|
g_value_set_boolean (value, smpte->invert);
|
|
GST_OBJECT_UNLOCK (smpte);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|