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glimagesink: take into account non 1/1 par for navigation

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The current code was ignoring the par/dar aspect when transforming
from window coordinates to stream coordinates resulting in incorrect
coordinates being sent upstream in the navigation events.
This commit is contained in:
Matthew Waters 2015-08-12 00:20:10 +02:00 committed by Tim-Philipp Müller
parent f3bd3d0b94
commit 83716a0586
1 changed files with 46 additions and 13 deletions
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59
ext/gl/gstglimagesink.c
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@ -359,6 +359,43 @@ enum
static guint gst_glimage_sink_signals[LAST_SIGNAL] = { 0 };
static void
_display_size_to_stream_size (GstGLImageSink * gl_sink, gdouble x,
gdouble y, gdouble * stream_x, gdouble * stream_y)
{
gdouble stream_width, stream_height;
stream_width = (gdouble) GST_VIDEO_INFO_WIDTH (&gl_sink->out_info);
stream_height = (gdouble) GST_VIDEO_INFO_HEIGHT (&gl_sink->out_info);
/* from display coordinates to stream coordinates */
if (gl_sink->display_rect.w > 0)
*stream_x =
(x - gl_sink->display_rect.x) / gl_sink->display_rect.w * stream_width;
else
*stream_x = 0.;
/* clip to stream size */
if (*stream_x < 0.)
*stream_x = 0.;
if (*stream_x > GST_VIDEO_INFO_WIDTH (&gl_sink->out_info))
*stream_x = GST_VIDEO_INFO_WIDTH (&gl_sink->out_info);
/* same for y-axis */
if (gl_sink->display_rect.h > 0)
*stream_y =
(y - gl_sink->display_rect.y) / gl_sink->display_rect.h * stream_height;
else
*stream_y = 0.;
if (*stream_y < 0.)
*stream_y = 0.;
if (*stream_y > GST_VIDEO_INFO_HEIGHT (&gl_sink->out_info))
*stream_y = GST_VIDEO_INFO_HEIGHT (&gl_sink->out_info);
GST_TRACE ("transform %fx%f into %fx%f", x, y, *stream_x, *stream_y);
}
static void
gst_glimage_sink_navigation_send_event (GstNavigation * navigation, GstStructure
* structure)
@ -368,7 +405,7 @@ gst_glimage_sink_navigation_send_event (GstNavigation * navigation, GstStructure
GstPad *pad = NULL;
GstGLWindow *window;
guint width, height;
gdouble x, y, xscale, yscale;
gdouble x, y;
if (!sink->context)
return;
@ -384,19 +421,15 @@ gst_glimage_sink_navigation_send_event (GstNavigation * navigation, GstStructure
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));
/* Converting pointer coordinates to the non scaled geometry */
if (width != GST_VIDEO_SINK_WIDTH (sink) &&
width != 0 && gst_structure_get_double (structure, "pointer_x", &x)) {
xscale = (gdouble) GST_VIDEO_SINK_WIDTH (sink) / width;
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
(gdouble) x * xscale, NULL);
}
if (height != GST_VIDEO_SINK_HEIGHT (sink) &&
height != 0 && gst_structure_get_double (structure, "pointer_y", &y)) {
yscale = (gdouble) GST_VIDEO_SINK_HEIGHT (sink) / height;
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
(gdouble) y * yscale, NULL);
}
if (width != 0 && gst_structure_get_double (structure, "pointer_x", &x)
&& height != 0 && gst_structure_get_double (structure, "pointer_y", &y)) {
gdouble stream_x, stream_y;
_display_size_to_stream_size (sink, x, y, &stream_x, &stream_y);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
stream_x, "pointer_y", G_TYPE_DOUBLE, stream_y, NULL);
}
if (GST_IS_PAD (pad) && GST_IS_EVENT (event))
gst_pad_send_event (pad, event);