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videobox: Translate navigation events to make sense again upstream

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This commit is contained in:
Sebastian Dröge 2010-04-18 21:11:21 +02:00
parent a105bf49e3
commit 4e836d3271
1 changed files with 52 additions and 3 deletions
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55
gst/videobox/gstvideobox.c
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@ -1,6 +1,7 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2010> Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -1881,6 +1882,8 @@ static void gst_video_box_before_transform (GstBaseTransform * trans,
GstBuffer * in);
static void gst_video_box_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean gst_video_box_src_event (GstBaseTransform * trans,
GstEvent * event);
#define GST_TYPE_VIDEO_BOX_FILL (gst_video_box_fill_get_type())
static GType
@ -1996,6 +1999,7 @@ gst_video_box_class_init (GstVideoBoxClass * klass)
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_box_set_caps);
trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_video_box_get_unit_size);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_video_box_fixate_caps);
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_video_box_src_event);
}
static void
@ -2276,7 +2280,6 @@ gst_video_box_transform_caps (GstBaseTransform * trans,
dw += video_box->box_right;
}
if (direction == GST_PAD_SINK) {
dh -= video_box->box_top;
dh -= video_box->box_bottom;
@ -2650,6 +2653,52 @@ gst_video_box_fixate_caps (GstBaseTransform * trans,
gst_structure_fixate_field_nearest_int (s, "height", height);
}
static gboolean
gst_video_box_src_event (GstBaseTransform * trans, GstEvent * event)
{
GstVideoBox *video_box = GST_VIDEO_BOX (trans);
GstStructure *new_structure;
const GstStructure *structure;
const gchar *event_name;
gdouble pointer_x;
gdouble pointer_y;
GST_OBJECT_LOCK (video_box);
if (GST_EVENT_TYPE (event) == GST_EVENT_NAVIGATION &&
(video_box->box_left != 0 || video_box->box_top != 0)) {
structure = gst_event_get_structure (event);
event_name = gst_structure_get_string (structure, "event");
if (event_name &&
(strcmp (event_name, "mouse-move") == 0 ||
strcmp (event_name, "mouse-button-press") == 0 ||
strcmp (event_name, "mouse-button-release") == 0)) {
if (gst_structure_get_double (structure, "pointer_x", &pointer_x) &&
gst_structure_get_double (structure, "pointer_y", &pointer_y)) {
gdouble new_pointer_x, new_pointer_y;
GstEvent *new_event;
new_pointer_x = pointer_x + video_box->box_left;
new_pointer_y = pointer_y + video_box->box_top;
new_structure = gst_structure_copy (structure);
gst_structure_set (new_structure,
"pointer_x", G_TYPE_DOUBLE, (gdouble) (new_pointer_x),
"pointer_y", G_TYPE_DOUBLE, (gdouble) (new_pointer_y), NULL);
new_event = gst_event_new_navigation (new_structure);
gst_event_unref (event);
event = new_event;
} else {
GST_WARNING_OBJECT (video_box, "Failed to read navigation event");
}
}
}
GST_OBJECT_UNLOCK (video_box);
return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
}
static void
gst_video_box_process (GstVideoBox * video_box, const guint8 * src,
guint8 * dest)