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vaapisink: allow scaling to ignore aspect ratio.

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Other GStreamer sinks, like xvimagesink, have a force-aspect-ratio property,
which allows you to say that you don't want the sink to respect aspect
ratio. Add the same property to vaapisink.

http://lists.freedesktop.org/archives/libva/2012-September/001298.html

Signed-off-by: Simon Farnsworth <simon.farnsworth at onelan.co.uk>
This commit is contained in:
Simon Farnsworth 2013-08-16 16:58:58 +01:00 committed by Gwenole Beauchesne
parent e5a50af2ae
commit 0ef5979d77
2 changed files with 37 additions and 0 deletions
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36
gst/vaapi/gstvaapisink.c
View file

@ -158,6 +158,7 @@ enum {
PROP_USE_GLX,
PROP_USE_REFLECTION,
PROP_ROTATION,
PROP_FORCE_ASPECT_RATIO,
};
#define DEFAULT_DISPLAY_TYPE GST_VAAPI_DISPLAY_TYPE_ANY
@ -381,6 +382,19 @@ gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
if (!sink->caps)
return TRUE;
if (!sink->keep_aspect) {
display_rect->width = width;
display_rect->height = height;
display_rect->x = 0;
display_rect->y = 0;
GST_DEBUG("force-aspect-ratio is false; distorting while scaling video");
GST_DEBUG("render rect (%d,%d):%ux%u",
display_rect->x, display_rect->y,
display_rect->width, display_rect->height);
return TRUE;
}
GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
gst_vaapi_display_get_pixel_aspect_ratio(
@ -1255,6 +1269,9 @@ gst_vaapisink_set_property(
case PROP_ROTATION:
sink->rotation_req = g_value_get_enum(value);
break;
case PROP_FORCE_ASPECT_RATIO:
sink->keep_aspect = g_value_get_boolean(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
@ -1290,6 +1307,9 @@ gst_vaapisink_get_property(
case PROP_ROTATION:
g_value_set_enum(value, sink->rotation);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean(value, sink->keep_aspect);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
@ -1401,6 +1421,21 @@ gst_vaapisink_class_init(GstVaapiSinkClass *klass)
GST_VAAPI_TYPE_ROTATION,
DEFAULT_ROTATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiSink:force-aspect-ratio:
*
* When enabled, scaling respects video aspect ratio; when disabled, the
* video is distorted to fit the window.
*/
g_object_class_install_property
(object_class,
PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
TRUE,
G_PARAM_READWRITE));
}
static void
@ -1426,4 +1461,5 @@ gst_vaapisink_init(GstVaapiSink *sink)
sink->use_reflection = FALSE;
sink->use_overlay = FALSE;
sink->use_rotation = FALSE;
sink->keep_aspect = TRUE;
}

1
gst/vaapi/gstvaapisink.h
View file

@ -95,6 +95,7 @@ struct _GstVaapiSink {
guint use_reflection : 1;
guint use_overlay : 1;
guint use_rotation : 1;
guint keep_aspect : 1;
guint use_video_raw : 1;
};