gstreamer/sys/d3d11/gstd3d11videosink.cpp
Seungha Yang 3a99517f7c d3d11videosink: Avoid switching conversion tool during playback
Decoder might be able to copy decoded texture to the other buffer pool
during playback depending on context. In that case, copied one
has no D3D11_BIND_DECODER bind flag.

If we used ID3D11VideoProcessor previously for decoder texture,
and incoming texture supports ID3D11VideoProcessor as well even if it has no
D3D11_BIND_DECODER flag (having D3D11_BIND_RENDER_TARGET for example),
allow zero-copying instead of using our fallback texture.

Frequent conversion tool change (between ID3D11VideoProcessor and generic shader)
might result in inconsistent image quality.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2084>
2021-03-15 21:00:22 +09:00

1374 lines
43 KiB
C++

/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-d3d11videosinkelement
* @title: d3d11videosinkelement
*
* Direct3D11 based video render element. This element allows only Direct3D11
* textures as a input. Use #d3d11videosink instead which is a convenient
* wrapper of #d3d11videosinkelement with #d3d11upload.
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! d3d11upload ! d3d11videosinkelement
* ```
* This pipeline will display test video stream on screen via d3d11videosinkelement
*
* Since: 1.18
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11videosink.h"
#include "gstd3d11videoprocessor.h"
#include "gstd3d11pluginutils.h"
#if GST_D3D11_WINAPI_APP
#include "gstd3d11window_corewindow.h"
#include "gstd3d11window_swapchainpanel.h"
#endif
#if (!GST_D3D11_WINAPI_ONLY_APP)
#include "gstd3d11window_win32.h"
#endif
#include "gstd3d11window_dummy.h"
enum
{
PROP_0,
PROP_ADAPTER,
PROP_FORCE_ASPECT_RATIO,
PROP_ENABLE_NAVIGATION_EVENTS,
PROP_FULLSCREEN_TOGGLE_MODE,
PROP_FULLSCREEN,
PROP_RENDER_STATS,
PROP_DRAW_ON_SHARED_TEXTURE,
};
#define DEFAULT_ADAPTER -1
#define DEFAULT_FORCE_ASPECT_RATIO TRUE
#define DEFAULT_ENABLE_NAVIGATION_EVENTS TRUE
#define DEFAULT_FULLSCREEN_TOGGLE_MODE GST_D3D11_WINDOW_FULLSCREEN_TOGGLE_MODE_NONE
#define DEFAULT_FULLSCREEN FALSE
#define DEFAULT_RENDER_STATS FALSE
#define DEFAULT_DRAW_ON_SHARED_TEXTURE FALSE
enum
{
/* signals */
SIGNAL_BEGIN_DRAW,
/* actions */
SIGNAL_DRAW,
LAST_SIGNAL
};
static guint gst_d3d11_video_sink_signals[LAST_SIGNAL] = { 0, };
static GstStaticCaps pad_template_caps =
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_SINK_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SINK_FORMATS));
GST_DEBUG_CATEGORY (d3d11_video_sink_debug);
#define GST_CAT_DEFAULT d3d11_video_sink_debug
struct _GstD3D11VideoSink
{
GstVideoSink parent;
GstD3D11Device *device;
GstD3D11Window *window;
gint video_width;
gint video_height;
GstVideoInfo info;
guintptr window_id;
/* properties */
gint adapter;
gboolean force_aspect_ratio;
gboolean enable_navigation_events;
GstD3D11WindowFullscreenToggleMode fullscreen_toggle_mode;
gboolean fullscreen;
gboolean render_stats;
gboolean draw_on_shared_texture;
/* saved render rectangle until we have a window */
GstVideoRectangle render_rect;
gboolean pending_render_rect;
GstBufferPool *fallback_pool;
gboolean can_convert;
gboolean have_video_processor;
gboolean processor_in_use;
/* For drawing on user texture */
GstD3D11VideoSinkCallbacks callbacks;
gpointer user_data;
gboolean drawing;
GstBuffer *current_buffer;
GRecMutex draw_lock;
};
static void gst_d3d11_videosink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_d3d11_videosink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_d3d11_video_sink_finalize (GObject * object);
static gboolean
gst_d3d11_video_sink_draw_action (GstD3D11VideoSink * self,
gpointer shared_handle, guint texture_misc_flags, guint64 acquire_key,
guint64 release_key);
static void
gst_d3d11_video_sink_video_overlay_init (GstVideoOverlayInterface * iface);
static void
gst_d3d11_video_sink_navigation_init (GstNavigationInterface * iface);
static void gst_d3d11_video_sink_set_context (GstElement * element,
GstContext * context);
static GstCaps *gst_d3d11_video_sink_get_caps (GstBaseSink * sink,
GstCaps * filter);
static gboolean gst_d3d11_video_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static gboolean gst_d3d11_video_sink_start (GstBaseSink * sink);
static gboolean gst_d3d11_video_sink_stop (GstBaseSink * sink);
static gboolean gst_d3d11_video_sink_propose_allocation (GstBaseSink * sink,
GstQuery * query);
static gboolean gst_d3d11_video_sink_query (GstBaseSink * sink,
GstQuery * query);
static gboolean gst_d3d11_video_sink_unlock (GstBaseSink * sink);
static gboolean gst_d3d11_video_sink_unlock_stop (GstBaseSink * sink);
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf);
static gboolean gst_d3d11_video_sink_prepare_window (GstD3D11VideoSink * self);
#define gst_d3d11_video_sink_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstD3D11VideoSink, gst_d3d11_video_sink,
GST_TYPE_VIDEO_SINK,
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
gst_d3d11_video_sink_video_overlay_init);
G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
gst_d3d11_video_sink_navigation_init);
GST_DEBUG_CATEGORY_INIT (d3d11_video_sink_debug,
"d3d11videosink", 0, "Direct3D11 Video Sink"));
static void
gst_d3d11_video_sink_class_init (GstD3D11VideoSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseSinkClass *basesink_class = GST_BASE_SINK_CLASS (klass);
GstVideoSinkClass *videosink_class = GST_VIDEO_SINK_CLASS (klass);
GstCaps *caps;
gobject_class->set_property = gst_d3d11_videosink_set_property;
gobject_class->get_property = gst_d3d11_videosink_get_property;
gobject_class->finalize = gst_d3d11_video_sink_finalize;
g_object_class_install_property (gobject_class, PROP_ADAPTER,
g_param_spec_int ("adapter", "Adapter",
"Adapter index for creating device (-1 for default)",
-1, G_MAXINT32, DEFAULT_ADAPTER,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
DEFAULT_FORCE_ASPECT_RATIO,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ENABLE_NAVIGATION_EVENTS,
g_param_spec_boolean ("enable-navigation-events",
"Enable navigation events",
"When enabled, navigation events are sent upstream",
DEFAULT_ENABLE_NAVIGATION_EVENTS,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_FULLSCREEN_TOGGLE_MODE,
g_param_spec_flags ("fullscreen-toggle-mode",
"Full screen toggle mode",
"Full screen toggle mode used to trigger fullscreen mode change",
GST_D3D11_WINDOW_TOGGLE_MODE_GET_TYPE, DEFAULT_FULLSCREEN_TOGGLE_MODE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_FULLSCREEN,
g_param_spec_boolean ("fullscreen",
"fullscreen",
"Ignored when \"fullscreen-toggle-mode\" does not include \"property\"",
DEFAULT_FULLSCREEN,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
#ifdef HAVE_DIRECT_WRITE
g_object_class_install_property (gobject_class, PROP_RENDER_STATS,
g_param_spec_boolean ("render-stats",
"Render Stats",
"Render statistics data (e.g., average framerate) on window",
DEFAULT_RENDER_STATS,
(GParamFlags) (GST_PARAM_CONDITIONALLY_AVAILABLE |
GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS)));
#endif
/**
* GstD3D11VideoSink:draw-on-shared-texture:
*
* Instruct the sink to draw on a shared texture provided by user.
* User must watch #d3d11videosinkelement::begin-draw signal and should call
* #d3d11videosinkelement::draw method on the #d3d11videosinkelement::begin-draw
* signal handler.
*
* Currently supported formats for user texture are:
* - DXGI_FORMAT_R8G8B8A8_UNORM
* - DXGI_FORMAT_B8G8R8A8_UNORM
* - DXGI_FORMAT_R10G10B10A2_UNORM
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_DRAW_ON_SHARED_TEXTURE,
g_param_spec_boolean ("draw-on-shared-texture",
"Draw on shared texture",
"Draw on user provided shared texture instead of window. "
"When enabled, user can pass application's own texture to sink "
"by using \"draw\" action signal on \"begin-draw\" signal handler, "
"so that sink can draw video data on application's texture. "
"Supported texture formats for user texture are "
"DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_B8G8R8A8_UNORM, and "
"DXGI_FORMAT_R10G10B10A2_UNORM.",
DEFAULT_DRAW_ON_SHARED_TEXTURE,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink::begin-draw:
* @videosink: the #d3d11videosinkelement
*
* Emitted when sink has a texture to draw. Application needs to invoke
* #d3d11videosinkelement::draw action signal before returning from
* #d3d11videosinkelement::begin-draw signal handler.
*
* Since: 1.20
*/
gst_d3d11_video_sink_signals[SIGNAL_BEGIN_DRAW] =
g_signal_new ("begin-draw", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstD3D11VideoSinkClass, begin_draw),
NULL, NULL, NULL, G_TYPE_NONE, 0, G_TYPE_NONE);
/**
* GstD3D11VideoSink::draw:
* @videosink: the #d3d11videosinkelement
* @shard_handle: a pointer to HANDLE
* @texture_misc_flags: a D3D11_RESOURCE_MISC_FLAG value
* @acquire_key: a key value used for IDXGIKeyedMutex::AcquireSync
* @release_key: a key value used for IDXGIKeyedMutex::ReleaseSync
*
* Draws on a shared texture. @shard_handle must be a valid pointer to
* a HANDLE which was obtained via IDXGIResource::GetSharedHandle or
* IDXGIResource1::CreateSharedHandle.
*
* If the texture was created with D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX flag,
* caller must specify valid @acquire_key and @release_key.
* Otherwise (i.e., created with D3D11_RESOURCE_MISC_SHARED flag),
* @acquire_key and @release_key will be ignored.
*
* Since: 1.20
*/
gst_d3d11_video_sink_signals[SIGNAL_DRAW] =
g_signal_new ("draw", G_TYPE_FROM_CLASS (klass),
(GSignalFlags) (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
G_STRUCT_OFFSET (GstD3D11VideoSinkClass, draw), NULL, NULL, NULL,
G_TYPE_BOOLEAN, 4, G_TYPE_POINTER, G_TYPE_UINT, G_TYPE_UINT64,
G_TYPE_UINT64);
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_set_context);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 video sink", "Sink/Video",
"A Direct3D11 based videosink",
"Seungha Yang <seungha.yang@navercorp.com>");
caps = gst_d3d11_get_updated_template_caps (&pad_template_caps);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
gst_caps_unref (caps);
basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_get_caps);
basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_set_caps);
basesink_class->start = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_start);
basesink_class->stop = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_stop);
basesink_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_propose_allocation);
basesink_class->query = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_query);
basesink_class->unlock = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_unlock);
basesink_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_unlock_stop);
videosink_class->show_frame =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_show_frame);
klass->draw = gst_d3d11_video_sink_draw_action;
gst_type_mark_as_plugin_api (GST_D3D11_WINDOW_TOGGLE_MODE_GET_TYPE,
(GstPluginAPIFlags) 0);
}
static void
gst_d3d11_video_sink_init (GstD3D11VideoSink * self)
{
self->adapter = DEFAULT_ADAPTER;
self->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
self->enable_navigation_events = DEFAULT_ENABLE_NAVIGATION_EVENTS;
self->fullscreen_toggle_mode = DEFAULT_FULLSCREEN_TOGGLE_MODE;
self->fullscreen = DEFAULT_FULLSCREEN;
self->render_stats = DEFAULT_RENDER_STATS;
self->draw_on_shared_texture = DEFAULT_DRAW_ON_SHARED_TEXTURE;
g_rec_mutex_init (&self->draw_lock);
}
static void
gst_d3d11_videosink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (object);
GST_OBJECT_LOCK (self);
switch (prop_id) {
case PROP_ADAPTER:
self->adapter = g_value_get_int (value);
break;
case PROP_FORCE_ASPECT_RATIO:
self->force_aspect_ratio = g_value_get_boolean (value);
if (self->window)
g_object_set (self->window,
"force-aspect-ratio", self->force_aspect_ratio, NULL);
break;
case PROP_ENABLE_NAVIGATION_EVENTS:
self->enable_navigation_events = g_value_get_boolean (value);
if (self->window) {
g_object_set (self->window,
"enable-navigation-events", self->enable_navigation_events, NULL);
}
break;
case PROP_FULLSCREEN_TOGGLE_MODE:
self->fullscreen_toggle_mode =
(GstD3D11WindowFullscreenToggleMode) g_value_get_flags (value);
if (self->window) {
g_object_set (self->window,
"fullscreen-toggle-mode", self->fullscreen_toggle_mode, NULL);
}
break;
case PROP_FULLSCREEN:
self->fullscreen = g_value_get_boolean (value);
if (self->window) {
g_object_set (self->window, "fullscreen", self->fullscreen, NULL);
}
break;
#ifdef HAVE_DIRECT_WRITE
case PROP_RENDER_STATS:
self->render_stats = g_value_get_boolean (value);
break;
#endif
case PROP_DRAW_ON_SHARED_TEXTURE:
self->draw_on_shared_texture = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_d3d11_videosink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (object);
switch (prop_id) {
case PROP_ADAPTER:
g_value_set_int (value, self->adapter);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, self->force_aspect_ratio);
break;
case PROP_ENABLE_NAVIGATION_EVENTS:
g_value_set_boolean (value, self->enable_navigation_events);
break;
case PROP_FULLSCREEN_TOGGLE_MODE:
g_value_set_flags (value, self->fullscreen_toggle_mode);
break;
case PROP_FULLSCREEN:
if (self->window) {
g_object_get_property (G_OBJECT (self->window), pspec->name, value);
} else {
g_value_set_boolean (value, self->fullscreen);
}
break;
#ifdef HAVE_DIRECT_WRITE
case PROP_RENDER_STATS:
g_value_set_boolean (value, self->render_stats);
break;
#endif
case PROP_DRAW_ON_SHARED_TEXTURE:
g_value_set_boolean (value, self->draw_on_shared_texture);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d11_video_sink_finalize (GObject * object)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (object);
g_rec_mutex_clear (&self->draw_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d11_video_sink_set_context (GstElement * element, GstContext * context)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (element);
gst_d3d11_handle_set_context (element, context, self->adapter, &self->device);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static GstCaps *
gst_d3d11_video_sink_get_supported_caps (GstD3D11VideoSink * self,
D3D11_FORMAT_SUPPORT flags)
{
GstD3D11Device *device;
ID3D11Device *d3d11_device;
HRESULT hr;
guint i;
GValue v_list = G_VALUE_INIT;
GstCaps *supported_caps;
static const GstVideoFormat format_list[] = {
GST_VIDEO_FORMAT_BGRA,
GST_VIDEO_FORMAT_RGBA,
GST_VIDEO_FORMAT_RGB10A2_LE,
GST_VIDEO_FORMAT_VUYA,
GST_VIDEO_FORMAT_NV12,
GST_VIDEO_FORMAT_P010_10LE,
GST_VIDEO_FORMAT_P016_LE,
GST_VIDEO_FORMAT_I420,
GST_VIDEO_FORMAT_I420_10LE,
};
device = self->device;
d3d11_device = gst_d3d11_device_get_device_handle (device);
g_value_init (&v_list, GST_TYPE_LIST);
for (i = 0; i < G_N_ELEMENTS (format_list); i++) {
UINT format_support = 0;
GstVideoFormat format;
const GstD3D11Format *d3d11_format;
d3d11_format = gst_d3d11_device_format_from_gst (device, format_list[i]);
if (!d3d11_format || d3d11_format->dxgi_format == DXGI_FORMAT_UNKNOWN)
continue;
format = d3d11_format->format;
hr = d3d11_device->CheckFormatSupport (d3d11_format->dxgi_format,
&format_support);
if (SUCCEEDED (hr) && ((format_support & flags) == flags)) {
GValue v_str = G_VALUE_INIT;
g_value_init (&v_str, G_TYPE_STRING);
GST_LOG_OBJECT (self, "d3d11 device can support %s with flags 0x%x",
gst_video_format_to_string (format), flags);
g_value_set_string (&v_str, gst_video_format_to_string (format));
gst_value_list_append_and_take_value (&v_list, &v_str);
}
}
supported_caps = gst_caps_new_simple ("video/x-raw",
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
gst_caps_set_value (supported_caps, "format", &v_list);
g_value_unset (&v_list);
gst_caps_set_features_simple (supported_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY));
return supported_caps;
}
static GstCaps *
gst_d3d11_video_sink_get_caps (GstBaseSink * sink, GstCaps * filter)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstCaps *caps = NULL;
if (self->device && !self->can_convert) {
GstCaps *overlaycaps;
GstCapsFeatures *features;
caps = gst_d3d11_video_sink_get_supported_caps (self,
(D3D11_FORMAT_SUPPORT) (D3D11_FORMAT_SUPPORT_TEXTURE2D |
D3D11_FORMAT_SUPPORT_DISPLAY));
overlaycaps = gst_caps_copy (caps);
features = gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, NULL);
gst_caps_set_features_simple (overlaycaps, features);
gst_caps_append (caps, overlaycaps);
}
if (!caps)
caps = gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD (sink));
if (caps && filter) {
GstCaps *isect;
isect = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = isect;
}
return caps;
}
static gboolean
gst_d3d11_video_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
gint video_width, video_height;
gint video_par_n, video_par_d; /* video's PAR */
gint display_par_n = 1, display_par_d = 1; /* display's PAR */
guint num, den;
GError *error = NULL;
GST_DEBUG_OBJECT (self, "set caps %" GST_PTR_FORMAT, caps);
if (!gst_d3d11_video_sink_prepare_window (self))
goto no_window;
if (!gst_video_info_from_caps (&self->info, caps))
goto invalid_format;
video_width = GST_VIDEO_INFO_WIDTH (&self->info);
video_height = GST_VIDEO_INFO_HEIGHT (&self->info);
video_par_n = GST_VIDEO_INFO_PAR_N (&self->info);
video_par_d = GST_VIDEO_INFO_PAR_D (&self->info);
/* get aspect ratio from caps if it's present, and
* convert video width and height to a display width and height
* using wd / hd = wv / hv * PARv / PARd */
/* TODO: Get display PAR */
if (!gst_video_calculate_display_ratio (&num, &den, video_width,
video_height, video_par_n, video_par_d, display_par_n, display_par_d))
goto no_disp_ratio;
GST_DEBUG_OBJECT (sink,
"video width/height: %dx%d, calculated display ratio: %d/%d format: %s",
video_width, video_height, num, den,
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&self->info)));
/* now find a width x height that respects this display ratio.
* prefer those that have one of w/h the same as the incoming video
* using wd / hd = num / den
*/
/* start with same height, because of interlaced video
* check hd / den is an integer scale factor, and scale wd with the PAR
*/
if (video_height % den == 0) {
GST_DEBUG_OBJECT (self, "keeping video height");
GST_VIDEO_SINK_WIDTH (self) = (guint)
gst_util_uint64_scale_int (video_height, num, den);
GST_VIDEO_SINK_HEIGHT (self) = video_height;
} else if (video_width % num == 0) {
GST_DEBUG_OBJECT (self, "keeping video width");
GST_VIDEO_SINK_WIDTH (self) = video_width;
GST_VIDEO_SINK_HEIGHT (self) = (guint)
gst_util_uint64_scale_int (video_width, den, num);
} else {
GST_DEBUG_OBJECT (self, "approximating while keeping video height");
GST_VIDEO_SINK_WIDTH (self) = (guint)
gst_util_uint64_scale_int (video_height, num, den);
GST_VIDEO_SINK_HEIGHT (self) = video_height;
}
GST_DEBUG_OBJECT (self, "scaling to %dx%d",
GST_VIDEO_SINK_WIDTH (self), GST_VIDEO_SINK_HEIGHT (self));
self->video_width = video_width;
self->video_height = video_height;
if (GST_VIDEO_SINK_WIDTH (self) <= 0 || GST_VIDEO_SINK_HEIGHT (self) <= 0)
goto no_display_size;
GST_OBJECT_LOCK (self);
if (!self->pending_render_rect) {
self->render_rect.x = 0;
self->render_rect.y = 0;
self->render_rect.w = GST_VIDEO_SINK_WIDTH (self);
self->render_rect.h = GST_VIDEO_SINK_HEIGHT (self);
}
gst_d3d11_window_set_render_rectangle (self->window,
self->render_rect.x, self->render_rect.y, self->render_rect.w,
self->render_rect.h);
self->pending_render_rect = FALSE;
GST_OBJECT_UNLOCK (self);
self->have_video_processor = FALSE;
if (!gst_d3d11_window_prepare (self->window, GST_VIDEO_SINK_WIDTH (self),
GST_VIDEO_SINK_HEIGHT (self), caps, &self->have_video_processor,
&error)) {
GstMessage *error_msg;
GST_ERROR_OBJECT (self, "cannot create swapchain");
error_msg = gst_message_new_error (GST_OBJECT_CAST (self),
error, "Failed to prepare d3d11window");
g_clear_error (&error);
gst_element_post_message (GST_ELEMENT (self), error_msg);
return FALSE;
}
if (self->fallback_pool) {
gst_buffer_pool_set_active (self->fallback_pool, FALSE);
gst_clear_object (&self->fallback_pool);
}
{
GstD3D11AllocationParams *d3d11_params;
gint bind_flags = D3D11_BIND_SHADER_RESOURCE;
if (self->have_video_processor) {
/* To create video processor input view, one of following bind flags
* is required
* NOTE: Any texture arrays which were created with D3D11_BIND_DECODER flag
* cannot be used for shader input.
*
* D3D11_BIND_DECODER
* D3D11_BIND_VIDEO_ENCODER
* D3D11_BIND_RENDER_TARGET
* D3D11_BIND_UNORDERED_ACCESS_VIEW
*/
bind_flags |= D3D11_BIND_RENDER_TARGET;
}
d3d11_params = gst_d3d11_allocation_params_new (self->device,
&self->info, (GstD3D11AllocationFlags) 0, bind_flags);
self->fallback_pool = gst_d3d11_buffer_pool_new_with_options (self->device,
caps, d3d11_params, 2, 0);
gst_d3d11_allocation_params_free (d3d11_params);
}
if (!self->fallback_pool) {
GST_ERROR_OBJECT (self, "Failed to configure fallback pool");
return FALSE;
}
self->processor_in_use = FALSE;
return TRUE;
/* ERRORS */
invalid_format:
{
GST_DEBUG_OBJECT (sink,
"Could not locate image format from caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
no_window:
{
GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND, (NULL),
("Failed to open window."));
return FALSE;
}
no_disp_ratio:
{
GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL),
("Error calculating the output display ratio of the video."));
return FALSE;
}
no_display_size:
{
GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL),
("Error calculating the output display ratio of the video."));
return FALSE;
}
}
static void
gst_d3d11_video_sink_key_event (GstD3D11Window * window, const gchar * event,
const gchar * key, GstD3D11VideoSink * self)
{
if (self->enable_navigation_events) {
GST_LOG_OBJECT (self, "send key event %s, key %s", event, key);
gst_navigation_send_key_event (GST_NAVIGATION (self), event, key);
}
}
static void
gst_d3d11_video_mouse_key_event (GstD3D11Window * window, const gchar * event,
gint button, gdouble x, gdouble y, GstD3D11VideoSink * self)
{
if (self->enable_navigation_events) {
GST_LOG_OBJECT (self,
"send mouse event %s, button %d (%.1f, %.1f)", event, button, x, y);
gst_navigation_send_mouse_event (GST_NAVIGATION (self), event, button, x,
y);
}
}
static gboolean
gst_d3d11_video_sink_start (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
gboolean is_hardware = TRUE;
GST_DEBUG_OBJECT (self, "Start");
if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), self->adapter,
&self->device)) {
GST_ERROR_OBJECT (sink, "Cannot create d3d11device");
return FALSE;
}
g_object_get (self->device, "hardware", &is_hardware, NULL);
if (!is_hardware) {
GST_WARNING_OBJECT (self, "D3D11 device is running on software emulation");
self->can_convert = FALSE;
} else {
self->can_convert = TRUE;
}
return TRUE;
}
static gboolean
gst_d3d11_video_sink_prepare_window (GstD3D11VideoSink * self)
{
GstD3D11WindowNativeType window_type = GST_D3D11_WINDOW_NATIVE_TYPE_HWND;
if (self->window)
return TRUE;
if (self->draw_on_shared_texture) {
GST_INFO_OBJECT (self,
"Create dummy window for rendering on shared texture");
self->window = gst_d3d11_window_dummy_new (self->device);
return TRUE;
}
if (!self->window_id)
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (self));
if (self->window_id) {
window_type =
gst_d3d11_window_get_native_type_from_handle (self->window_id);
if (window_type != GST_D3D11_WINDOW_NATIVE_TYPE_NONE) {
GST_DEBUG_OBJECT (self, "Have window handle %" G_GUINTPTR_FORMAT,
self->window_id);
gst_video_overlay_got_window_handle (GST_VIDEO_OVERLAY (self),
self->window_id);
}
}
GST_DEBUG_OBJECT (self, "Create window (type: %s)",
gst_d3d11_window_get_native_type_to_string (window_type));
#if GST_D3D11_WINAPI_ONLY_APP
if (window_type != GST_D3D11_WINDOW_NATIVE_TYPE_CORE_WINDOW &&
window_type != GST_D3D11_WINDOW_NATIVE_TYPE_SWAP_CHAIN_PANEL) {
GST_ERROR_OBJECT (self, "Overlay handle must be set before READY state");
return FALSE;
}
#endif
switch (window_type) {
#if (!GST_D3D11_WINAPI_ONLY_APP)
case GST_D3D11_WINDOW_NATIVE_TYPE_HWND:
self->window = gst_d3d11_window_win32_new (self->device, self->window_id);
break;
#endif
#if GST_D3D11_WINAPI_APP
case GST_D3D11_WINDOW_NATIVE_TYPE_CORE_WINDOW:
self->window = gst_d3d11_window_core_window_new (self->device,
self->window_id);
break;
case GST_D3D11_WINDOW_NATIVE_TYPE_SWAP_CHAIN_PANEL:
self->window = gst_d3d11_window_swap_chain_panel_new (self->device,
self->window_id);
break;
#endif
default:
break;
}
if (!self->window) {
GST_ERROR_OBJECT (self, "Cannot create d3d11window");
return FALSE;
}
GST_OBJECT_LOCK (self);
g_object_set (self->window,
"force-aspect-ratio", self->force_aspect_ratio,
"fullscreen-toggle-mode", self->fullscreen_toggle_mode,
"fullscreen", self->fullscreen,
"enable-navigation-events", self->enable_navigation_events, NULL);
#ifdef HAVE_DIRECT_WRITE
g_object_set (self->window, "render-stats", self->render_stats, NULL);
#endif
GST_OBJECT_UNLOCK (self);
g_signal_connect (self->window, "key-event",
G_CALLBACK (gst_d3d11_video_sink_key_event), self);
g_signal_connect (self->window, "mouse-event",
G_CALLBACK (gst_d3d11_video_mouse_key_event), self);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_stop (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GST_DEBUG_OBJECT (self, "Stop");
if (self->fallback_pool) {
gst_buffer_pool_set_active (self->fallback_pool, FALSE);
gst_object_unref (self->fallback_pool);
self->fallback_pool = NULL;
}
if (self->window)
gst_d3d11_window_unprepare (self->window);
gst_clear_object (&self->device);
gst_clear_object (&self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_propose_allocation (GstBaseSink * sink, GstQuery * query)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstCaps *caps;
GstBufferPool *pool = NULL;
GstVideoInfo info;
guint size;
gboolean need_pool;
if (!self->device || !self->window)
return FALSE;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
/* the normal size of a frame */
size = info.size;
if (need_pool) {
GstD3D11AllocationParams *d3d11_params;
GST_DEBUG_OBJECT (self, "create new pool");
d3d11_params = gst_d3d11_allocation_params_new (self->device, &info,
(GstD3D11AllocationFlags) 0, D3D11_BIND_SHADER_RESOURCE);
pool = gst_d3d11_buffer_pool_new_with_options (self->device, caps,
d3d11_params, 2, 0);
gst_d3d11_allocation_params_free (d3d11_params);
if (!pool) {
GST_ERROR_OBJECT (self, "Failed to create buffer pool");
return FALSE;
}
size = GST_D3D11_BUFFER_POOL (pool)->buffer_size;
}
/* We need at least 2 buffers because we hold on to the last one for redrawing
* on window-resize event */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
if (pool)
g_object_unref (pool);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
no_caps:
{
GST_WARNING_OBJECT (self, "no caps specified");
return FALSE;
}
invalid_caps:
{
GST_WARNING_OBJECT (self, "invalid caps specified");
return FALSE;
}
return TRUE;
}
static gboolean
gst_d3d11_video_sink_query (GstBaseSink * sink, GstQuery * query)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_d3d11_handle_context_query (GST_ELEMENT (self), query,
self->device)) {
return TRUE;
}
break;
default:
break;
}
return GST_BASE_SINK_CLASS (parent_class)->query (sink, query);
}
static gboolean
gst_d3d11_video_sink_unlock (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
if (self->window)
gst_d3d11_window_unlock (self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_unlock_stop (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
if (self->window)
gst_d3d11_window_unlock_stop (self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_upload_frame (GstD3D11VideoSink * self, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstVideoFrame in_frame, out_frame;
gboolean ret;
GST_LOG_OBJECT (self, "Copy to fallback buffer");
if (!gst_video_frame_map (&in_frame, &self->info, inbuf,
(GstMapFlags) (GST_MAP_READ | GST_VIDEO_FRAME_MAP_FLAG_NO_REF)))
goto invalid_buffer;
if (!gst_video_frame_map (&out_frame, &self->info, outbuf,
(GstMapFlags) (GST_MAP_WRITE | GST_VIDEO_FRAME_MAP_FLAG_NO_REF))) {
gst_video_frame_unmap (&in_frame);
goto invalid_buffer;
}
ret = gst_video_frame_copy (&out_frame, &in_frame);
gst_video_frame_unmap (&in_frame);
gst_video_frame_unmap (&out_frame);
return ret;
/* ERRORS */
invalid_buffer:
{
GST_ELEMENT_WARNING (self, CORE, NOT_IMPLEMENTED, (NULL),
("invalid video buffer received"));
return FALSE;
}
}
static gboolean
gst_d3d11_video_sink_copy_d3d11_to_d3d11 (GstD3D11VideoSink * self,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GST_LOG_OBJECT (self, "Copy to fallback buffer using device memory copy");
return gst_d3d11_buffer_copy_into (outbuf, inbuf, &self->info);
}
static gboolean
gst_d3d11_video_sink_get_fallback_buffer (GstD3D11VideoSink * self,
GstBuffer * inbuf, GstBuffer ** fallback_buf, gboolean device_copy)
{
GstBuffer *outbuf = NULL;
ID3D11ShaderResourceView *view[GST_VIDEO_MAX_PLANES];
GstVideoOverlayCompositionMeta *compo_meta;
if (!self->fallback_pool ||
!gst_buffer_pool_set_active (self->fallback_pool, TRUE) ||
gst_buffer_pool_acquire_buffer (self->fallback_pool, &outbuf,
NULL) != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "fallback pool is unavailable");
return FALSE;
}
/* Ensure SRV */
if (!gst_d3d11_buffer_get_shader_resource_view (outbuf, view)) {
GST_ERROR_OBJECT (self, "fallback SRV is unavailable");
goto error;
}
if (device_copy) {
if (!gst_d3d11_video_sink_copy_d3d11_to_d3d11 (self, inbuf, outbuf)) {
GST_ERROR_OBJECT (self, "cannot copy frame");
goto error;
}
} else if (!gst_d3d11_video_sink_upload_frame (self, inbuf, outbuf)) {
GST_ERROR_OBJECT (self, "cannot upload frame");
goto error;
}
/* Copy overlaycomposition meta if any */
compo_meta = gst_buffer_get_video_overlay_composition_meta (inbuf);
if (compo_meta)
gst_buffer_add_video_overlay_composition_meta (outbuf, compo_meta->overlay);
*fallback_buf = outbuf;
return TRUE;
error:
gst_buffer_unref (outbuf);
return FALSE;
}
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstFlowReturn ret = GST_FLOW_OK;
GstVideoRectangle rect = { 0, };
GstBuffer *fallback_buf = NULL;
GstStructure *stats = NULL;
ID3D11Device *device_handle =
gst_d3d11_device_get_device_handle (self->device);
ID3D11ShaderResourceView *view[GST_VIDEO_MAX_PLANES];
if (!gst_d3d11_buffer_can_access_device (buf, device_handle)) {
GST_LOG_OBJECT (self, "Need fallback buffer");
if (!gst_d3d11_video_sink_get_fallback_buffer (self, buf, &fallback_buf,
FALSE)) {
return GST_FLOW_ERROR;
}
} else {
gboolean direct_rendering = FALSE;
/* Check if we can use video processor for conversion */
if (gst_buffer_n_memory (buf) == 1 && self->have_video_processor) {
GstD3D11Memory *mem = (GstD3D11Memory *) gst_buffer_peek_memory (buf, 0);
D3D11_TEXTURE2D_DESC desc;
gst_d3d11_memory_get_texture_desc (mem, &desc);
if ((desc.BindFlags & D3D11_BIND_DECODER) == D3D11_BIND_DECODER) {
GST_TRACE_OBJECT (self,
"Got VideoProcessor compatible texture, do direct rendering");
direct_rendering = TRUE;
self->processor_in_use = TRUE;
} else if (self->processor_in_use &&
(desc.BindFlags & D3D11_BIND_RENDER_TARGET) ==
D3D11_BIND_RENDER_TARGET) {
direct_rendering = TRUE;
}
}
/* Or, SRV should be available */
if (!direct_rendering) {
if (gst_d3d11_buffer_get_shader_resource_view (buf, view)) {
GST_TRACE_OBJECT (self, "SRV is available, do direct rendering");
direct_rendering = TRUE;
}
}
if (!direct_rendering &&
!gst_d3d11_video_sink_get_fallback_buffer (self, buf, &fallback_buf,
TRUE)) {
return GST_FLOW_ERROR;
}
}
gst_d3d11_window_show (self->window);
/* FIXME: add support crop meta */
rect.w = self->video_width;
rect.h = self->video_height;
if (self->draw_on_shared_texture) {
g_rec_mutex_lock (&self->draw_lock);
self->current_buffer = fallback_buf ? fallback_buf : buf;
self->drawing = TRUE;
GST_LOG_OBJECT (self, "Begin drawing");
/* Application should call draw method on this callback */
if (self->callbacks.begin_draw) {
self->callbacks.begin_draw (self, self->user_data);
} else {
g_signal_emit (self, gst_d3d11_video_sink_signals[SIGNAL_BEGIN_DRAW], 0,
NULL);
}
GST_LOG_OBJECT (self, "End drawing");
self->drawing = FALSE;
self->current_buffer = NULL;
g_rec_mutex_unlock (&self->draw_lock);
} else {
if (self->render_stats)
stats = gst_base_sink_get_stats (GST_BASE_SINK_CAST (self));
ret = gst_d3d11_window_render (self->window,
fallback_buf ? fallback_buf : buf, &rect, stats);
}
gst_clear_buffer (&fallback_buf);
if (ret == GST_D3D11_WINDOW_FLOW_CLOSED) {
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
("Output window was closed"), (NULL));
ret = GST_FLOW_ERROR;
}
return ret;
}
/* VideoOverlay interface */
static void
gst_d3d11_video_sink_set_window_handle (GstVideoOverlay * overlay,
guintptr window_id)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (overlay);
GST_DEBUG ("set window handle %" G_GUINTPTR_FORMAT, window_id);
self->window_id = window_id;
}
static void
gst_d3d11_video_sink_set_render_rectangle (GstVideoOverlay * overlay, gint x,
gint y, gint width, gint height)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (overlay);
GST_DEBUG_OBJECT (self,
"render rect x: %d, y: %d, width: %d, height %d", x, y, width, height);
GST_OBJECT_LOCK (self);
if (self->window) {
gst_d3d11_window_set_render_rectangle (self->window, x, y, width, height);
} else {
self->render_rect.x = x;
self->render_rect.y = y;
self->render_rect.w = width;
self->render_rect.h = height;
self->pending_render_rect = TRUE;
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_d3d11_video_sink_expose (GstVideoOverlay * overlay)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (overlay);
if (self->window && self->window->swap_chain) {
GstVideoRectangle rect = { 0, };
rect.w = GST_VIDEO_SINK_WIDTH (self);
rect.h = GST_VIDEO_SINK_HEIGHT (self);
gst_d3d11_window_render (self->window, NULL, &rect, NULL);
}
}
static void
gst_d3d11_video_sink_video_overlay_init (GstVideoOverlayInterface * iface)
{
iface->set_window_handle = gst_d3d11_video_sink_set_window_handle;
iface->set_render_rectangle = gst_d3d11_video_sink_set_render_rectangle;
iface->expose = gst_d3d11_video_sink_expose;
}
/* Navigation interface */
static void
gst_d3d11_video_sink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (navigation);
gboolean handled = FALSE;
GstEvent *event = NULL;
GstVideoRectangle src = { 0, };
GstVideoRectangle dst = { 0, };
GstVideoRectangle result;
gdouble x, y, xscale = 1.0, yscale = 1.0;
if (!self->window) {
gst_structure_free (structure);
return;
}
if (self->force_aspect_ratio) {
/* We get the frame position using the calculated geometry from _setcaps
that respect pixel aspect ratios */
src.w = GST_VIDEO_SINK_WIDTH (self);
src.h = GST_VIDEO_SINK_HEIGHT (self);
dst.w = self->render_rect.w;
dst.h = self->render_rect.h;
gst_video_sink_center_rect (src, dst, &result, TRUE);
result.x += self->render_rect.x;
result.y += self->render_rect.y;
} else {
memcpy (&result, &self->render_rect, sizeof (GstVideoRectangle));
}
xscale = (gdouble) GST_VIDEO_INFO_WIDTH (&self->info) / result.w;
yscale = (gdouble) GST_VIDEO_INFO_HEIGHT (&self->info) / result.h;
/* Converting pointer coordinates to the non scaled geometry */
if (gst_structure_get_double (structure, "pointer_x", &x)) {
x = MIN (x, result.x + result.w);
x = MAX (x - result.x, 0);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
(gdouble) x * xscale, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &y)) {
y = MIN (y, result.y + result.h);
y = MAX (y - result.y, 0);
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
(gdouble) y * yscale, NULL);
}
event = gst_event_new_navigation (structure);
if (event) {
gst_event_ref (event);
handled = gst_pad_push_event (GST_VIDEO_SINK_PAD (self), event);
if (!handled)
gst_element_post_message (GST_ELEMENT_CAST (self),
gst_navigation_message_new_event (GST_OBJECT_CAST (self), event));
gst_event_unref (event);
}
}
static void
gst_d3d11_video_sink_navigation_init (GstNavigationInterface * iface)
{
iface->send_event = gst_d3d11_video_sink_navigation_send_event;
}
static gboolean
gst_d3d11_video_sink_draw_action (GstD3D11VideoSink * self,
gpointer shared_handle, guint texture_misc_flags,
guint64 acquire_key, guint64 release_key)
{
GstFlowReturn ret;
g_return_val_if_fail (shared_handle != NULL, FALSE);
if (!self->draw_on_shared_texture) {
GST_ERROR_OBJECT (self, "Invalid draw call, we are drawing on window");
return FALSE;
}
if (!shared_handle) {
GST_ERROR_OBJECT (self, "Invalid handle");
return FALSE;
}
g_rec_mutex_lock (&self->draw_lock);
if (!self->drawing || !self->current_buffer) {
GST_WARNING_OBJECT (self, "Nothing to draw");
g_rec_mutex_unlock (&self->draw_lock);
return FALSE;
}
GST_LOG_OBJECT (self, "Drawing on shared handle %p, MiscFlags: 0x%x"
", acquire key: %" G_GUINT64_FORMAT ", release key: %"
G_GUINT64_FORMAT, shared_handle, texture_misc_flags, acquire_key,
release_key);
ret = gst_d3d11_window_render_on_shared_handle (self->window,
self->current_buffer, shared_handle, texture_misc_flags, acquire_key,
release_key);
g_rec_mutex_unlock (&self->draw_lock);
return ret == GST_FLOW_OK;
}
void
gst_d3d11_video_sink_set_callbacks (GstD3D11VideoSink * videosink,
GstD3D11VideoSinkCallbacks * callbacks, gpointer user_data)
{
g_return_if_fail (GST_IS_D3D11_VIDEO_SINK (videosink));
videosink->callbacks = *callbacks;
videosink->user_data = user_data;
}
gboolean
gst_d3d11_video_sink_draw (GstD3D11VideoSink * videosink,
gpointer shared_handle, guint texture_misc_flags, guint64 acquire_key,
guint64 release_key)
{
g_return_val_if_fail (GST_IS_D3D11_VIDEO_SINK (videosink), FALSE);
return gst_d3d11_video_sink_draw_action (videosink, shared_handle,
texture_misc_flags, acquire_key, release_key);
}