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gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11videosink.cpp
Seungha Yang a27c5c81df d3d11videosink: Fix deadlock when parent window is busy 
Deadlock sequence:
* From a streaming thread, d3d11videosink sends synchronous message
  to the parent window, so that internal (child) window can be
  constructed on the parent window's thread
* App thread (parent window thread) is waiting for pipeline's
  state change (to GST_STATE_NULL) but streaming thread is
  blocked and waiting for app thread

To avoid the deadlock, GstD3D11WindowWin32 should send message
to the parent window asynchronously.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3570>
2022-12-15 17:37:48 +00:00

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/* 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-d3d11videosink
* @title: d3d11videosink
*
* Direct3D11 based video render element
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! d3d11upload ! d3d11videosink
* ```
* This pipeline will display test video stream on screen via d3d11videosink
*
* Since: 1.18
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11videosink.h"
#include "gstd3d11pluginutils.h"
#include <string>
#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_DRAW_ON_SHARED_TEXTURE,
PROP_ROTATE_METHOD,
PROP_GAMMA_MODE,
PROP_PRIMARIES_MODE,
PROP_DISPLAY_FORMAT,
PROP_EMIT_PRESENT,
};
#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_DRAW_ON_SHARED_TEXTURE FALSE
#define DEFAULT_GAMMA_MODE GST_VIDEO_GAMMA_MODE_NONE
#define DEFAULT_PRIMARIES_MODE GST_VIDEO_PRIMARIES_MODE_NONE
#define DEFAULT_DISPLAY_FORMAT DXGI_FORMAT_UNKNOWN
#define DEFAULT_EMIT_PRESENT FALSE
/**
* GstD3D11VideoSinkDisplayFormat:
*
* Swapchain's DXGI format
*
* Since: 1.22
*/
#define GST_TYPE_D3D11_VIDEO_SINK_DISPLAY_FORMAT (gst_d3d11_video_sink_display_format_type())
static GType
gst_d3d11_video_sink_display_format_type (void)
{
static GType format_type = 0;
GST_D3D11_CALL_ONCE_BEGIN {
static const GEnumValue format_types[] = {
/**
* GstD3D11VideoSinkDisplayFormat::unknown:
*
* Since: 1.22
*/
{DXGI_FORMAT_UNKNOWN, "DXGI_FORMAT_UNKNOWN", "unknown"},
/**
* GstD3D11VideoSinkDisplayFormat::r10g10b10a2-unorm:
*
* Since: 1.22
*/
{DXGI_FORMAT_R10G10B10A2_UNORM,
"DXGI_FORMAT_R10G10B10A2_UNORM", "r10g10b10a2-unorm"},
/**
* GstD3D11VideoSinkDisplayFormat::r8g8b8a8-unorm:
*
* Since: 1.22
*/
{DXGI_FORMAT_R8G8B8A8_UNORM,
"DXGI_FORMAT_R8G8B8A8_UNORM", "r8g8b8a8-unorm"},
/**
* GstD3D11VideoSinkDisplayFormat::b8g8r8a8-unorm:
*
* Since: 1.22
*/
{DXGI_FORMAT_B8G8R8A8_UNORM,
"DXGI_FORMAT_B8G8R8A8_UNORM", "b8g8r8a8-unorm"},
{0, nullptr, nullptr},
};
format_type = g_enum_register_static ("GstD3D11VideoSinkDisplayFormat",
format_types);
} GST_D3D11_CALL_ONCE_END;
return format_type;
}
enum
{
/* signals */
SIGNAL_BEGIN_DRAW,
SIGNAL_PRESENT,
/* 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_VIDEO_CAPS_MAKE (GST_D3D11_SINK_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_SYSTEM_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;
gboolean caps_updated;
/* properties */
gint adapter;
gboolean force_aspect_ratio;
gboolean enable_navigation_events;
GstD3D11WindowFullscreenToggleMode fullscreen_toggle_mode;
gboolean fullscreen;
gboolean draw_on_shared_texture;
GstVideoGammaMode gamma_mode;
GstVideoPrimariesMode primaries_mode;
DXGI_FORMAT display_format;
gboolean emit_present;
/* saved render rectangle until we have a window */
GstVideoRectangle render_rect;
gboolean pending_render_rect;
/* For drawing on user texture */
gboolean drawing;
GstBuffer *current_buffer;
CRITICAL_SECTION lock;
gchar *title;
/* method configured via property */
GstVideoOrientationMethod method;
/* method parsed from tag */
GstVideoOrientationMethod tag_method;
/* method currently selected based on "method" and "tag_method" */
GstVideoOrientationMethod selected_method;
};
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 gboolean gst_d3d11_video_sink_event (GstBaseSink * sink,
GstEvent * event);
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf);
static gboolean gst_d3d11_video_sink_prepare_window (GstD3D11VideoSink * self);
static void gst_d3d11_video_sink_set_orientation (GstD3D11VideoSink * self,
GstVideoOrientationMethod method, gboolean from_tag);
#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)));
/**
* GstD3D11VideoSink:draw-on-shared-texture:
*
* Instruct the sink to draw on a shared texture provided by user.
* User must watch #d3d11videosink::begin-draw signal and should call
* #d3d11videosink::draw method on the #d3d11videosink::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:rotate-method:
*
* Video rotation/flip method to use
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_ROTATE_METHOD,
g_param_spec_enum ("rotate-method", "Rotate Method",
"Rotate method to use",
GST_TYPE_VIDEO_ORIENTATION_METHOD, GST_VIDEO_ORIENTATION_IDENTITY,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink:gamma-mode:
*
* Gamma conversion mode
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_GAMMA_MODE,
g_param_spec_enum ("gamma-mode", "Gamma mode",
"Gamma conversion mode", GST_TYPE_VIDEO_GAMMA_MODE,
DEFAULT_GAMMA_MODE, (GParamFlags) (GST_PARAM_MUTABLE_READY |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink:primaries-mode:
*
* Primaries conversion mode
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_PRIMARIES_MODE,
g_param_spec_enum ("primaries-mode", "Primaries Mode",
"Primaries conversion mode", GST_TYPE_VIDEO_PRIMARIES_MODE,
DEFAULT_PRIMARIES_MODE, (GParamFlags) (GST_PARAM_MUTABLE_READY |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink:display-format:
*
* Swapchain display format
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_DISPLAY_FORMAT,
g_param_spec_enum ("display-format", "Display Format",
"Swapchain display format", GST_TYPE_D3D11_VIDEO_SINK_DISPLAY_FORMAT,
DEFAULT_DISPLAY_FORMAT, (GParamFlags) (G_PARAM_READWRITE |
GST_PARAM_MUTABLE_READY | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink:emit-present:
*
* Emits "present" signal
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_EMIT_PRESENT,
g_param_spec_boolean ("emit-present", "Emit present",
"Emits present signal", DEFAULT_EMIT_PRESENT,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
G_PARAM_STATIC_STRINGS)));
/**
* GstD3D11VideoSink::begin-draw:
* @videosink: the #d3d11videosink
*
* Emitted when sink has a texture to draw. Application needs to invoke
* #d3d11videosink::draw action signal before returning from
* #d3d11videosink::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 #d3d11videosink
* @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);
/**
* GstD3D11VideoSink::present
* @videosink: the #GstD3D11VideoSink
* @device: a GstD3D11Device object
* @render_target: a ID3D11RenderTargetView handle of swapchain's backbuffer
*
* Emitted just before presenting a texture via the IDXGISwapChain::Present.
* The client can perform additional rendering on the given @render_target,
* or can read the content already rendered on the swapchain's backbuffer.
*
* This signal will be emitted with gst_d3d11_device_lock taken and
* client should perform GPU operation from the thread where this signal
* emitted.
*
* Since: 1.22
*/
gst_d3d11_video_sink_signals[SIGNAL_PRESENT] =
g_signal_new ("present", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, nullptr, nullptr, nullptr,
G_TYPE_NONE, 2, GST_TYPE_OBJECT, G_TYPE_POINTER);
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);
basesink_class->event = GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_event);
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);
gst_type_mark_as_plugin_api (GST_TYPE_D3D11_VIDEO_SINK_DISPLAY_FORMAT,
(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->draw_on_shared_texture = DEFAULT_DRAW_ON_SHARED_TEXTURE;
self->gamma_mode = DEFAULT_GAMMA_MODE;
self->primaries_mode = DEFAULT_PRIMARIES_MODE;
self->display_format = DEFAULT_DISPLAY_FORMAT;
self->emit_present = DEFAULT_EMIT_PRESENT;
InitializeCriticalSection (&self->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);
GstD3D11CSLockGuard lk (&self->lock);
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;
case PROP_DRAW_ON_SHARED_TEXTURE:
self->draw_on_shared_texture = g_value_get_boolean (value);
break;
case PROP_ROTATE_METHOD:
gst_d3d11_video_sink_set_orientation (self,
(GstVideoOrientationMethod) g_value_get_enum (value), FALSE);
break;
case PROP_GAMMA_MODE:
self->gamma_mode = (GstVideoGammaMode) g_value_get_enum (value);
break;
case PROP_PRIMARIES_MODE:
self->primaries_mode = (GstVideoPrimariesMode) g_value_get_enum (value);
break;
case PROP_DISPLAY_FORMAT:
self->display_format = (DXGI_FORMAT) g_value_get_enum (value);
break;
case PROP_EMIT_PRESENT:
self->emit_present = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d11_videosink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (object);
GstD3D11CSLockGuard lk (&self->lock);
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;
case PROP_DRAW_ON_SHARED_TEXTURE:
g_value_set_boolean (value, self->draw_on_shared_texture);
break;
case PROP_ROTATE_METHOD:
g_value_set_enum (value, self->method);
break;
case PROP_GAMMA_MODE:
g_value_set_enum (value, self->gamma_mode);
break;
case PROP_PRIMARIES_MODE:
g_value_set_enum (value, self->primaries_mode);
break;
case PROP_DISPLAY_FORMAT:
g_value_set_enum (value, self->display_format);
break;
case PROP_EMIT_PRESENT:
g_value_set_boolean (value, self->emit_present);
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);
DeleteCriticalSection (&self->lock);
g_free (self->title);
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_caps (GstBaseSink * sink, GstCaps * filter)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstCaps *caps = NULL;
caps = gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD (sink));
if (self->device) {
gboolean is_hardware = FALSE;
g_object_get (self->device, "hardware", &is_hardware, NULL);
/* In case of WARP device, conversion via shader would be inefficient than
* upstream videoconvert. Allow native formats in this case */
if (!is_hardware) {
GValue format_list = G_VALUE_INIT;
GValue format = G_VALUE_INIT;
g_value_init (&format_list, GST_TYPE_LIST);
g_value_init (&format, G_TYPE_STRING);
g_value_set_string (&format, "RGBA");
gst_value_list_append_and_take_value (&format_list, &format);
format = G_VALUE_INIT;
g_value_init (&format, G_TYPE_STRING);
g_value_set_string (&format, "BGRA");
gst_value_list_append_and_take_value (&format_list, &format);
caps = gst_caps_make_writable (caps);
gst_caps_set_value (caps, "format", &format_list);
g_value_unset (&format_list);
}
}
if (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);
GST_DEBUG_OBJECT (self, "set caps %" GST_PTR_FORMAT, caps);
/* We will update window on show_frame() */
self->caps_updated = TRUE;
return TRUE;
}
static GstFlowReturn
gst_d3d11_video_sink_update_window (GstD3D11VideoSink * self, GstCaps * caps)
{
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;
GstStructure *config;
GstD3D11Window *window;
GstFlowReturn ret = GST_FLOW_OK;
GST_DEBUG_OBJECT (self, "Updating window with caps %" GST_PTR_FORMAT, caps);
self->caps_updated = FALSE;
EnterCriticalSection (&self->lock);
if (!gst_d3d11_video_sink_prepare_window (self)) {
LeaveCriticalSection (&self->lock);
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND, (nullptr),
("Failed to open window."));
return GST_FLOW_ERROR;
}
if (!gst_video_info_from_caps (&self->info, caps)) {
GST_DEBUG_OBJECT (self,
"Could not locate image format from caps %" GST_PTR_FORMAT, caps);
LeaveCriticalSection (&self->lock);
return GST_FLOW_ERROR;
}
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 */
if (!gst_video_calculate_display_ratio (&num, &den, video_width,
video_height, video_par_n, video_par_d, display_par_n,
display_par_d)) {
LeaveCriticalSection (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (nullptr),
("Error calculating the output display ratio of the video."));
return GST_FLOW_ERROR;
}
GST_DEBUG_OBJECT (self,
"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) {
LeaveCriticalSection (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (nullptr),
("Error calculating the output display ratio of the video."));
return GST_FLOW_ERROR;
}
if (self->pending_render_rect) {
GstVideoRectangle rect = self->render_rect;
self->pending_render_rect = FALSE;
gst_d3d11_window_set_render_rectangle (self->window, &rect);
}
config = gst_structure_new ("convert-config",
GST_D3D11_CONVERTER_OPT_GAMMA_MODE,
GST_TYPE_VIDEO_GAMMA_MODE, self->gamma_mode,
GST_D3D11_CONVERTER_OPT_PRIMARIES_MODE,
GST_TYPE_VIDEO_PRIMARIES_MODE, self->primaries_mode, nullptr);
window = (GstD3D11Window *) gst_object_ref (self->window);
LeaveCriticalSection (&self->lock);
ret = gst_d3d11_window_prepare (window, GST_VIDEO_SINK_WIDTH (self),
GST_VIDEO_SINK_HEIGHT (self), caps, config, self->display_format, &error);
if (ret != GST_FLOW_OK) {
GstMessage *error_msg;
if (ret == GST_FLOW_FLUSHING) {
GstD3D11CSLockGuard lk (&self->lock);
GST_WARNING_OBJECT (self, "Couldn't prepare window but we are flushing");
gst_clear_object (&self->window);
gst_object_unref (window);
return GST_FLOW_FLUSHING;
}
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);
gst_object_unref (window);
return GST_FLOW_ERROR;
}
if (self->title) {
gst_d3d11_window_set_title (window, self->title);
g_clear_pointer (&self->title, g_free);
}
gst_object_unref (window);
return GST_FLOW_OK;
}
static void
gst_d3d11_video_sink_key_event (GstD3D11Window * window, const gchar * event,
const gchar * key, GstD3D11VideoSink * self)
{
GstEvent *key_event;
if (!self->enable_navigation_events || !event || !key)
return;
GST_LOG_OBJECT (self, "send key event %s, key %s", event, key);
if (g_strcmp0 ("key-press", event) == 0) {
key_event = gst_navigation_event_new_key_press (key,
GST_NAVIGATION_MODIFIER_NONE);
} else if (g_strcmp0 ("key-release", event) == 0) {
key_event = gst_navigation_event_new_key_release (key,
GST_NAVIGATION_MODIFIER_NONE);
} else {
return;
}
gst_navigation_send_event_simple (GST_NAVIGATION (self), key_event);
}
static void
gst_d3d11_video_mouse_key_event (GstD3D11Window * window, const gchar * event,
gint button, gdouble x, gdouble y, GstD3D11VideoSink * self)
{
GstEvent *mouse_event;
if (!self->enable_navigation_events || !event)
return;
GST_LOG_OBJECT (self,
"send mouse event %s, button %d (%.1f, %.1f)", event, button, x, y);
if (g_strcmp0 ("mouse-button-press", event) == 0) {
mouse_event = gst_navigation_event_new_mouse_button_press (button, x, y,
GST_NAVIGATION_MODIFIER_NONE);
} else if (g_strcmp0 ("mouse-button-release", event) == 0) {
mouse_event = gst_navigation_event_new_mouse_button_release (button, x, y,
GST_NAVIGATION_MODIFIER_NONE);
} else if (g_strcmp0 ("mouse-move", event) == 0) {
mouse_event = gst_navigation_event_new_mouse_move (x, y,
GST_NAVIGATION_MODIFIER_NONE);
} else {
return;
}
gst_navigation_send_event_simple (GST_NAVIGATION (self), mouse_event);
}
static void
gst_d3d11_video_sink_present (GstD3D11Window * window, GstD3D11Device * device,
ID3D11RenderTargetView * rtv, GstD3D11VideoSink * self)
{
g_signal_emit (self, gst_d3d11_video_sink_signals[SIGNAL_PRESENT], 0,
device, rtv);
}
static gboolean
gst_d3d11_video_sink_start (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
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;
}
return TRUE;
}
/* called with lock */
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);
goto done;
}
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;
}
done:
if (!self->window) {
GST_ERROR_OBJECT (self, "Cannot create d3d11window");
return FALSE;
}
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,
"emit-present", self->emit_present, nullptr);
gst_d3d11_window_set_orientation (self->window, self->selected_method);
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);
g_signal_connect (self->window, "present",
G_CALLBACK (gst_d3d11_video_sink_present), self);
GST_DEBUG_OBJECT (self,
"Have prepared window %" GST_PTR_FORMAT, self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_stop (GstBaseSink * sink)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstD3D11CSLockGuard lk (&self->lock);
GST_DEBUG_OBJECT (self, "Stop");
if (self->window)
gst_d3d11_window_unprepare (self->window);
gst_clear_object (&self->window);
gst_clear_object (&self->device);
g_clear_pointer (&self->title, g_free);
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)
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) {
GstCapsFeatures *features;
GstStructure *config;
gboolean is_d3d11 = FALSE;
features = gst_caps_get_features (caps, 0);
if (features
&& gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
GST_DEBUG_OBJECT (self, "upstream support d3d11 memory");
pool = gst_d3d11_buffer_pool_new (self->device);
is_d3d11 = TRUE;
} else {
pool = gst_video_buffer_pool_new ();
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!is_d3d11) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
size = GST_VIDEO_INFO_SIZE (&info);
if (is_d3d11) {
GstD3D11AllocationParams *d3d11_params;
d3d11_params =
gst_d3d11_allocation_params_new (self->device,
&info, GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_SHADER_RESOURCE,
0);
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
}
gst_buffer_pool_config_set_params (config, caps, (guint) size, 2, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (pool, "Couldn't set config");
gst_object_unref (pool);
return FALSE;
}
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr,
nullptr);
gst_structure_free (config);
if (is_d3d11) {
/* In case of system memory, we will upload video frame to GPU memory,
* (which is copy in any case), so crop meta support for system memory
* is almost pointless */
gst_query_add_allocation_meta (query,
GST_VIDEO_CROP_META_API_TYPE, nullptr);
}
}
/* 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)
gst_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);
GstD3D11CSLockGuard lk (&self->lock);
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);
GstD3D11CSLockGuard lk (&self->lock);
if (self->window)
gst_d3d11_window_unlock_stop (self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:{
GstTagList *taglist;
gchar *title = nullptr;
GstVideoOrientationMethod method = GST_VIDEO_ORIENTATION_IDENTITY;
gst_event_parse_tag (event, &taglist);
gst_tag_list_get_string (taglist, GST_TAG_TITLE, &title);
if (title) {
const gchar *app_name = g_get_application_name ();
std::string title_string;
GstD3D11CSLockGuard lk (&self->lock);
if (app_name) {
title_string = std::string (title) + " : " + std::string (app_name);
} else {
title_string = std::string (title);
}
if (self->window) {
gst_d3d11_window_set_title (self->window, title_string.c_str ());
} else {
g_free (self->title);
self->title = g_strdup (title_string.c_str ());
}
g_free (title);
}
if (gst_video_orientation_from_tag (taglist, &method)) {
GstD3D11CSLockGuard lk (&self->lock);
gst_d3d11_video_sink_set_orientation (self, method, TRUE);
}
break;
}
default:
break;
}
return GST_BASE_SINK_CLASS (parent_class)->event (sink, event);
}
/* called with lock */
static void
gst_d3d11_video_sink_set_orientation (GstD3D11VideoSink * self,
GstVideoOrientationMethod method, gboolean from_tag)
{
if (method == GST_VIDEO_ORIENTATION_CUSTOM) {
GST_WARNING_OBJECT (self, "Unsupported custom orientation");
return;
}
if (from_tag)
self->tag_method = method;
else
self->method = method;
if (self->method == GST_VIDEO_ORIENTATION_AUTO) {
self->selected_method = self->tag_method;
} else {
self->selected_method = self->method;
}
if (self->window)
gst_d3d11_window_set_orientation (self->window, self->selected_method);
}
static void
gst_d3d11_video_sink_check_device_update (GstD3D11VideoSink * self,
GstBuffer * buf)
{
GstMemory *mem;
GstD3D11Memory *dmem;
gboolean update_device = FALSE;
/* We have configured window already, cannot update device */
if (self->window)
return;
mem = gst_buffer_peek_memory (buf, 0);
if (!gst_is_d3d11_memory (mem))
return;
dmem = GST_D3D11_MEMORY_CAST (mem);
/* Same device, nothing to do */
if (dmem->device == self->device)
return;
if (self->adapter < 0) {
update_device = TRUE;
} else {
guint adapter = 0;
g_object_get (dmem->device, "adapter", &adapter, NULL);
/* The same GPU as what user wanted, update */
if (adapter == (guint) self->adapter)
update_device = TRUE;
}
if (!update_device)
return;
GST_INFO_OBJECT (self, "Updating device %" GST_PTR_FORMAT " -> %"
GST_PTR_FORMAT, self->device, dmem->device);
gst_object_unref (self->device);
self->device = (GstD3D11Device *) gst_object_ref (dmem->device);
}
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstFlowReturn ret = GST_FLOW_OK;
gst_d3d11_video_sink_check_device_update (self, buf);
if (self->caps_updated || !self->window) {
GstCaps *caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
/* shouldn't happen */
if (!caps)
return GST_FLOW_NOT_NEGOTIATED;
ret = gst_d3d11_video_sink_update_window (self, caps);
gst_caps_unref (caps);
if (ret != GST_FLOW_OK)
return ret;
}
gst_d3d11_window_show (self->window);
if (self->draw_on_shared_texture) {
GstD3D11CSLockGuard lk (&self->lock);
self->current_buffer = buf;
self->drawing = TRUE;
GST_LOG_OBJECT (self, "Begin drawing");
/* Application should call draw method on this callback */
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 = nullptr;
} else {
ret = gst_d3d11_window_render (self->window, 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);
GstD3D11CSLockGuard lk (&self->lock);
GST_DEBUG_OBJECT (self,
"render rect x: %d, y: %d, width: %d, height %d", x, y, width, height);
if (self->window) {
GstVideoRectangle rect;
rect.x = x;
rect.y = y;
rect.w = width;
rect.h = height;
self->render_rect = rect;
gst_d3d11_window_set_render_rectangle (self->window, &rect);
} 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;
}
}
static void
gst_d3d11_video_sink_expose (GstVideoOverlay * overlay)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (overlay);
GstD3D11CSLockGuard lk (&self->lock);
if (self->window && self->window->swap_chain)
gst_d3d11_window_render (self->window, nullptr);
}
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,
GstEvent * event)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (navigation);
/* TODO: add support for translating native coordinate and video coordinate
* when force-aspect-ratio is set */
if (event) {
gboolean handled;
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_simple = 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;
}
GstD3D11CSLockGuard lk (&self->lock);
if (!self->drawing || !self->current_buffer) {
GST_WARNING_OBJECT (self, "Nothing to draw");
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);
return ret == GST_FLOW_OK;
}
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