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d3d12screencapturesrc: Add support for WGC API

Browse source 
Adding support for window and monitor capturing by using
Windows Graphics Capture API.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6256>
This commit is contained in:
Seungha Yang 2024-03-02 02:13:41 +09:00
parent 63ef405131
commit 4db7eb0290
8 changed files with 1915 additions and 97 deletions
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9
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12dxgicapture.cpp
View file

@ -768,9 +768,6 @@ gst_d3d12_dxgi_capture_prepare (GstD3D12ScreenCapture * capture);
static gboolean
gst_d3d12_dxgi_capture_get_size (GstD3D12ScreenCapture * capture,
guint * width, guint * height);
static GstFlowReturn
gst_d3d12_dxgi_capture_do_capture (GstD3D12ScreenCapture * capture,
GstBuffer * buffer, const D3D12_BOX * crop_box, gboolean draw_mouse);
#define gst_d3d12_dxgi_capture_parent_class parent_class
G_DEFINE_TYPE (GstD3D12DxgiCapture, gst_d3d12_dxgi_capture,
@ -786,8 +783,6 @@ gst_d3d12_dxgi_capture_class_init (GstD3D12DxgiCaptureClass * klass)
capture_class->prepare = GST_DEBUG_FUNCPTR (gst_d3d12_dxgi_capture_prepare);
capture_class->get_size = GST_DEBUG_FUNCPTR (gst_d3d12_dxgi_capture_get_size);
capture_class->do_capture =
GST_DEBUG_FUNCPTR (gst_d3d12_dxgi_capture_do_capture);
}
static void
@ -1570,8 +1565,8 @@ gst_d3d12_dxgi_capture_draw_mouse (GstD3D12DxgiCapture * self,
return TRUE;
}
static GstFlowReturn
gst_d3d12_dxgi_capture_do_capture (GstD3D12ScreenCapture * capture,
GstFlowReturn
gst_d3d12_dxgi_capture_do_capture (GstD3D12DxgiCapture * capture,
GstBuffer * buffer, const D3D12_BOX * crop_box, gboolean draw_mouse)
{
auto self = GST_D3D12_DXGI_CAPTURE (capture);

5
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12dxgicapture.h
View file

@ -32,5 +32,10 @@ G_DECLARE_FINAL_TYPE (GstD3D12DxgiCapture, gst_d3d12_dxgi_capture,
GstD3D12ScreenCapture * gst_d3d12_dxgi_capture_new (GstD3D12Device * device,
HMONITOR monitor_handle);
GstFlowReturn gst_d3d12_dxgi_capture_do_capture (GstD3D12DxgiCapture * capture,
GstBuffer * buffer,
const D3D12_BOX * crop_box,
gboolean draw_mouse);
G_END_DECLS

1342
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12graphicscapture.cpp Normal file
View file

File diff suppressed because it is too large Load diff

54
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12graphicscapture.h Normal file
View file

@ -0,0 +1,54 @@
/* GStreamer
* Copyright (C) 2024 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.
*/
#pragma once
#include <gst/gst.h>
#include "gstd3d12screencapture.h"
G_BEGIN_DECLS
#define GST_TYPE_D3D12_GRAPHICS_CAPTURE (gst_d3d12_graphics_capture_get_type())
G_DECLARE_FINAL_TYPE (GstD3D12GraphicsCapture, gst_d3d12_graphics_capture,
GST, D3D12_GRAPHICS_CAPTURE, GstD3D12ScreenCapture);
gboolean gst_d3d12_graphics_capture_load_library (void);
GstD3D12ScreenCapture * gst_d3d12_graphics_capture_new (GstD3D12Device * device,
HWND window_handle,
HMONITOR monitor_handle);
void gst_d3d12_graphics_capture_show_border (GstD3D12GraphicsCapture * capture,
gboolean show);
void gst_d3d12_graphics_capture_show_cursor (GstD3D12GraphicsCapture * capture,
gboolean show);
void gst_d3d12_graphics_capture_set_client_only (GstD3D12GraphicsCapture * capture,
gboolean client_only);
GstFlowReturn gst_d3d12_graphics_capture_do_capture (GstD3D12GraphicsCapture * capture,
gboolean is_d3d12,
const CaptureCropRect * crop_rect,
GstBuffer ** buffer,
guint * width,
guint * height);
G_END_DECLS

25
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12screencapture.cpp
View file

@ -99,31 +99,6 @@ gst_d3d12_screen_capture_unlock_stop (GstD3D12ScreenCapture * capture)
return TRUE;
}
void
gst_d3d12_screen_capture_show_border (GstD3D12ScreenCapture * capture,
gboolean show)
{
g_return_if_fail (GST_IS_D3D12_SCREEN_CAPTURE (capture));
auto klass = GST_D3D12_SCREEN_CAPTURE_GET_CLASS (capture);
if (klass->show_border)
klass->show_border (capture, show);
}
GstFlowReturn
gst_d3d12_screen_capture_do_capture (GstD3D12ScreenCapture * capture,
GstBuffer * buffer, const D3D12_BOX * crop_box, gboolean draw_mouse)
{
g_return_val_if_fail (GST_IS_D3D12_SCREEN_CAPTURE (capture), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_BUFFER (buffer), GST_FLOW_ERROR);
auto klass = GST_D3D12_SCREEN_CAPTURE_GET_CLASS (capture);
g_assert (klass->do_capture);
return klass->do_capture (capture, buffer, crop_box, draw_mouse);
}
HRESULT
gst_d3d12_screen_capture_find_output_for_monitor (HMONITOR monitor,
IDXGIAdapter1 ** adapter, IDXGIOutput ** output)

24
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12screencapture.h
View file

@ -40,6 +40,14 @@ typedef struct _GstD3D12ScreenCaptureClass GstD3D12ScreenCaptureClass;
#define GST_D3D12_SCREEN_CAPTURE_FLOW_SIZE_CHANGED GST_FLOW_CUSTOM_SUCCESS_1
#define GST_D3D12_SCREEN_CAPTURE_FLOW_UNSUPPORTED GST_FLOW_CUSTOM_ERROR
struct CaptureCropRect
{
guint crop_x;
guint crop_y;
guint crop_w;
guint crop_h;
};
struct _GstD3D12ScreenCapture
{
GstObject parent;
@ -58,14 +66,6 @@ struct _GstD3D12ScreenCaptureClass
gboolean (*unlock) (GstD3D12ScreenCapture * capture);
gboolean (*unlock_stop) (GstD3D12ScreenCapture * capture);
void (*show_border) (GstD3D12ScreenCapture * capture,
gboolean show);
GstFlowReturn (*do_capture) (GstD3D12ScreenCapture * capture,
GstBuffer * buffer,
const D3D12_BOX * crop_box,
gboolean draw_mouse);
};
GType gst_d3d12_screen_capture_get_type (void);
@ -80,14 +80,6 @@ gboolean gst_d3d12_screen_capture_unlock (GstD3D12ScreenCapture * ca
gboolean gst_d3d12_screen_capture_unlock_stop (GstD3D12ScreenCapture * capture);
void gst_d3d12_screen_capture_show_border (GstD3D12ScreenCapture * capture,
gboolean show);
GstFlowReturn gst_d3d12_screen_capture_do_capture (GstD3D12ScreenCapture * capture,
GstBuffer * buffer,
const D3D12_BOX * crop_box,
gboolean draw_mouse);
HRESULT gst_d3d12_screen_capture_find_output_for_monitor (HMONITOR monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);

518
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12screencapturesrc.cpp
View file

@ -36,6 +36,7 @@
#include "gstd3d12screencapturesrc.h"
#include "gstd3d12dxgicapture.h"
#include "gstd3d12graphicscapture.h"
#include "gstd3d12pluginutils.h"
#include <mutex>
#include <wrl.h>
@ -58,10 +59,102 @@ enum
PROP_CROP_Y,
PROP_CROP_WIDTH,
PROP_CROP_HEIGHT,
PROP_WINDOW_HANDLE,
PROP_SHOW_BORDER,
PROP_CAPTURE_API,
PROP_ADAPTER,
PROP_WINDOW_CAPTURE_MODE,
};
enum GstD3D12ScreenCaptureAPI
{
GST_D3D12_SCREEN_CAPTURE_API_DXGI,
GST_D3D12_SCREEN_CAPTURE_API_WGC,
};
enum GstD3D12WindowCaptureMode
{
GST_D3D12_WINDOW_CAPTURE_DEFAULT,
GST_D3D12_WINDOW_CAPTURE_CLIENT,
};
/**
* GstD3D11ScreenCaptureAPI:
*
* Since: 1.26
*/
#define GST_TYPE_D3D12_SCREEN_CAPTURE_API (gst_d3d12_screen_capture_api_get_type())
static GType
gst_d3d12_screen_capture_api_get_type (void)
{
static GType api_type = 0;
GST_D3D12_CALL_ONCE_BEGIN {
static const GEnumValue api_types[] = {
/**
* GstD3D12ScreenCaptureAPI::dxgi:
*
* Since: 1.26
*/
{GST_D3D12_SCREEN_CAPTURE_API_DXGI, "DXGI Desktop Duplication", "dxgi"},
/**
* GstD3D12ScreenCaptureAPI::wgc:
*
* Since: 1.26
*/
{GST_D3D12_SCREEN_CAPTURE_API_WGC, "Windows Graphics Capture", "wgc"},
{0, nullptr, nullptr},
};
api_type = g_enum_register_static ("GstD3D12ScreenCaptureAPI", api_types);
} GST_D3D12_CALL_ONCE_END;
return api_type;
}
/**
* GstD3D12WindowCaptureMode:
*
* Since: 1.26
*/
#define GST_TYPE_D3D12_WINDOW_CAPTURE_MODE (gst_d3d11_window_capture_mode_get_type())
static GType
gst_d3d11_window_capture_mode_get_type (void)
{
static GType type = 0;
GST_D3D12_CALL_ONCE_BEGIN {
static const GEnumValue hwnd_modes[] = {
/**
* GstD3D12WindowCaptureMode::default:
*
* Since: 1.26
*/
{GST_D3D12_WINDOW_CAPTURE_DEFAULT,
"Capture entire window area", "default"},
/**
* GstD3D12WindowCaptureMode::client:
*
* Since: 1.26
*/
{GST_D3D12_WINDOW_CAPTURE_CLIENT, "Capture client area", "client"},
{0, nullptr, nullptr},
};
type = g_enum_register_static ("GstD3D12WindowCaptureMode", hwnd_modes);
} GST_D3D12_CALL_ONCE_END;
return type;
}
#define DEFAULT_MONITOR_INDEX -1
#define DEFAULT_SHOW_CURSOR FALSE
#define DEFAULT_SHOW_BORDER FALSE
#define DEFAULT_CAPTURE_API GST_D3D12_SCREEN_CAPTURE_API_DXGI
#define DEFAULT_ADAPTER -1
#define DEFAULT_WINDOW_CAPTURE_MODE GST_D3D12_WINDOW_CAPTURE_DEFAULT
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
@ -92,15 +185,18 @@ struct GstD3D12ScreenCaptureSrcPrivate
GstBufferPool *pool = nullptr;
gint64 adapter_luid = 0;
gint adapter_index = DEFAULT_ADAPTER;
gint monitor_index = DEFAULT_MONITOR_INDEX;
HMONITOR monitor_handle = nullptr;
HWND window_handle = nullptr;
gboolean show_cursor = DEFAULT_SHOW_CURSOR;
gboolean show_border = DEFAULT_SHOW_BORDER;
guint crop_x = 0;
guint crop_y = 0;
guint crop_w = 0;
guint crop_h = 0;
CaptureCropRect crop_rect = { };
D3D12_BOX crop_box = { };
GstD3D12ScreenCaptureAPI capture_api = DEFAULT_CAPTURE_API;
GstD3D12ScreenCaptureAPI selected_capture_api = DEFAULT_CAPTURE_API;
GstD3D12WindowCaptureMode hwnd_capture_mode = DEFAULT_WINDOW_CAPTURE_MODE;
gboolean flushing = FALSE;
GstClockTime latency = GST_CLOCK_TIME_NONE;
@ -206,6 +302,84 @@ gst_d3d12_screen_capture_src_class_init (GstD3D12ScreenCaptureSrcClass * klass)
0, G_MAXUINT, 0,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
if (gst_d3d12_graphics_capture_load_library ()) {
/**
* GstD3D12ScreenCaptureSrc:window-handle:
*
* HWND window handle to capture
*
* Since: 1.26
*/
g_object_class_install_property (object_class, PROP_WINDOW_HANDLE,
g_param_spec_uint64 ("window-handle", "Window Handle",
"A HWND handle of window to capture",
0, G_MAXUINT64, 0,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D12ScreenCaptureSrc:show-border:
*
* Show border lines to capture area when WGC mode is selected.
* This feature requires Windows11 or newer
*
* Since: 1.26
*/
g_object_class_install_property (object_class, PROP_SHOW_BORDER,
g_param_spec_boolean ("show-border", "Show Border",
"Show border lines to capture area when WGC mode is selected",
DEFAULT_SHOW_BORDER,
(GParamFlags) (GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_READWRITE
| G_PARAM_STATIC_STRINGS)));
/**
* GstD3D12ScreenCaptureSrc:capture-api:
*
* Capture API to use
*
* Since: 1.26
*/
g_object_class_install_property (object_class, PROP_CAPTURE_API,
g_param_spec_enum ("capture-api", "Capture API", "Capture API to use",
GST_TYPE_D3D12_SCREEN_CAPTURE_API,
DEFAULT_CAPTURE_API,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_STATIC_STRINGS)));
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_SCREEN_CAPTURE_API,
(GstPluginAPIFlags) 0);
/**
* GstD3D12ScreenCaptureSrc:adapter:
*
* DXGI Adapter index for creating device when WGC mode is selected
*
* Since: 1.26
*/
g_object_class_install_property (object_class, PROP_ADAPTER,
g_param_spec_int ("adapter", "Adapter",
"DXGI Adapter index for creating device when WGC mode is selected "
"(-1 for default)",
-1, G_MAXINT32, DEFAULT_ADAPTER,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_STATIC_STRINGS)));
/**
* GstD3D12ScreenCaptureSrc:window-capture-mode:
*
* Window capture mode to use
*
* Since: 1.26
*/
g_object_class_install_property (object_class, PROP_WINDOW_CAPTURE_MODE,
g_param_spec_enum ("window-capture-mode", "Window Capture Mode",
"Window capture mode to use if \"window-handle\" is set",
GST_TYPE_D3D12_WINDOW_CAPTURE_MODE, DEFAULT_WINDOW_CAPTURE_MODE,
(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
GST_PARAM_CONDITIONALLY_AVAILABLE | G_PARAM_STATIC_STRINGS)));
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_WINDOW_CAPTURE_MODE,
(GstPluginAPIFlags) 0);
}
element_class->provide_clock =
GST_DEBUG_FUNCPTR (gst_d3d12_screen_capture_src_provide_clock);
element_class->set_context =
@ -282,16 +456,43 @@ gst_d3d12_screen_capture_src_set_property (GObject * object, guint prop_id,
priv->show_cursor = g_value_get_boolean (value);
break;
case PROP_CROP_X:
priv->crop_x = g_value_get_uint (value);
priv->crop_rect.crop_x = g_value_get_uint (value);
break;
case PROP_CROP_Y:
priv->crop_y = g_value_get_uint (value);
priv->crop_rect.crop_y = g_value_get_uint (value);
break;
case PROP_CROP_WIDTH:
priv->crop_w = g_value_get_uint (value);
priv->crop_rect.crop_w = g_value_get_uint (value);
break;
case PROP_CROP_HEIGHT:
priv->crop_h = g_value_get_uint (value);
priv->crop_rect.crop_h = g_value_get_uint (value);
break;
case PROP_WINDOW_HANDLE:
priv->window_handle = (HWND) g_value_get_uint64 (value);
break;
case PROP_SHOW_BORDER:
priv->show_border = g_value_get_boolean (value);
if (priv->capture &&
priv->capture_api == GST_D3D12_SCREEN_CAPTURE_API_WGC) {
auto wgc = GST_D3D12_GRAPHICS_CAPTURE (priv->capture);
gst_d3d12_graphics_capture_show_border (wgc, priv->show_border);
}
break;
case PROP_CAPTURE_API:
priv->capture_api = (GstD3D12ScreenCaptureAPI) g_value_get_enum (value);
break;
case PROP_ADAPTER:
priv->adapter_index = g_value_get_int (value);
break;
case PROP_WINDOW_CAPTURE_MODE:
priv->hwnd_capture_mode =
(GstD3D12WindowCaptureMode) g_value_get_enum (value);
if (priv->capture &&
priv->capture_api == GST_D3D12_SCREEN_CAPTURE_API_WGC) {
auto wgc = GST_D3D12_GRAPHICS_CAPTURE (priv->capture);
gst_d3d12_graphics_capture_set_client_only (wgc,
priv->hwnd_capture_mode == GST_D3D12_WINDOW_CAPTURE_CLIENT);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -318,16 +519,31 @@ gst_d3d12_screen_capture_src_get_property (GObject * object, guint prop_id,
g_value_set_boolean (value, priv->show_cursor);
break;
case PROP_CROP_X:
g_value_set_uint (value, priv->crop_x);
g_value_set_uint (value, priv->crop_rect.crop_x);
break;
case PROP_CROP_Y:
g_value_set_uint (value, priv->crop_y);
g_value_set_uint (value, priv->crop_rect.crop_y);
break;
case PROP_CROP_WIDTH:
g_value_set_uint (value, priv->crop_w);
g_value_set_uint (value, priv->crop_rect.crop_w);
break;
case PROP_CROP_HEIGHT:
g_value_set_uint (value, priv->crop_h);
g_value_set_uint (value, priv->crop_rect.crop_h);
break;
case PROP_WINDOW_HANDLE:
g_value_set_uint64 (value, (guint64) priv->window_handle);
break;
case PROP_SHOW_BORDER:
g_value_set_boolean (value, priv->show_border);
break;
case PROP_CAPTURE_API:
g_value_set_enum (value, priv->capture_api);
break;
case PROP_ADAPTER:
g_value_set_int (value, priv->adapter_index);
break;
case PROP_WINDOW_CAPTURE_MODE:
g_value_set_enum (value, priv->hwnd_capture_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -370,8 +586,8 @@ gst_d3d12_screen_capture_src_get_crop_box (GstD3D12ScreenCaptureSrc * self,
gst_d3d12_screen_capture_get_size (priv->capture, &screen_width,
&screen_height);
if ((priv->crop_x + priv->crop_w) > screen_width ||
(priv->crop_y + priv->crop_h) > screen_height) {
if ((priv->crop_rect.crop_x + priv->crop_rect.crop_w) > screen_width ||
(priv->crop_rect.crop_y + priv->crop_rect.crop_h) > screen_height) {
GST_WARNING ("Capture region outside of the screen bounds; ignoring.");
box.left = 0;
@ -379,10 +595,12 @@ gst_d3d12_screen_capture_src_get_crop_box (GstD3D12ScreenCaptureSrc * self,
box.right = screen_width;
box.bottom = screen_height;
} else {
box.left = priv->crop_x;
box.top = priv->crop_y;
box.right = priv->crop_w ? (priv->crop_x + priv->crop_w) : screen_width;
box.bottom = priv->crop_h ? (priv->crop_y + priv->crop_h) : screen_height;
box.left = priv->crop_rect.crop_x;
box.top = priv->crop_rect.crop_y;
box.right = priv->crop_rect.crop_w ?
(priv->crop_rect.crop_x + priv->crop_rect.crop_w) : screen_width;
box.bottom = priv->crop_rect.crop_h ?
(priv->crop_rect.crop_y + priv->crop_rect.crop_h) : screen_height;
}
}
@ -399,9 +617,13 @@ gst_d3d12_screen_capture_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
return gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (bsrc));
}
gst_d3d12_screen_capture_src_get_crop_box (self, priv->crop_box);
width = priv->crop_box.right - priv->crop_box.left;
height = priv->crop_box.bottom - priv->crop_box.top;
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_WGC) {
gst_d3d12_screen_capture_get_size (priv->capture, &width, &height);
} else {
gst_d3d12_screen_capture_src_get_crop_box (self, priv->crop_box);
width = priv->crop_box.right - priv->crop_box.left;
height = priv->crop_box.bottom - priv->crop_box.top;
}
auto caps = gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (bsrc));
caps = gst_caps_make_writable (caps);
@ -617,43 +839,63 @@ gst_d3d12_screen_capture_src_start (GstBaseSrc * bsrc)
GstFlowReturn ret;
HMONITOR monitor = priv->monitor_handle;
ComPtr < IDXGIAdapter1 > adapter;
DXGI_ADAPTER_DESC desc;
GstD3D12ScreenCapture *capture = nullptr;
HRESULT hr;
GstD3D12ScreenCaptureAPI requested_api;
if (monitor) {
hr = gst_d3d12_screen_capture_find_output_for_monitor (monitor,
&adapter, nullptr);
} else if (priv->monitor_index < 0) {
hr = gst_d3d12_screen_capture_find_primary_monitor (&monitor,
&adapter, nullptr);
std::unique_lock < std::recursive_mutex > lk (priv->lock);
requested_api = priv->capture_api;
if (priv->window_handle) {
priv->selected_capture_api = GST_D3D12_SCREEN_CAPTURE_API_WGC;
} else {
hr = gst_d3d12_screen_capture_find_nth_monitor (priv->monitor_index,
&monitor, &adapter, nullptr);
priv->selected_capture_api = requested_api;
if (monitor) {
hr = gst_d3d12_screen_capture_find_output_for_monitor (monitor,
&adapter, nullptr);
} else if (priv->monitor_index < 0) {
hr = gst_d3d12_screen_capture_find_primary_monitor (&monitor,
&adapter, nullptr);
} else {
hr = gst_d3d12_screen_capture_find_nth_monitor (priv->monitor_index,
&monitor, &adapter, nullptr);
}
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "Couldn't get monitor handle");
goto error;
}
}
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "Couldn't get monitor handle");
goto error;
}
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_DXGI) {
DXGI_ADAPTER_DESC desc;
adapter->GetDesc (&desc);
adapter->GetDesc (&desc);
{
std::lock_guard < std::recursive_mutex > lk (priv->lock);
priv->adapter_luid = gst_d3d12_luid_to_int64 (&desc.AdapterLuid);
gst_clear_object (&self->device);
gst_d3d12_ensure_element_data_for_adapter_luid (GST_ELEMENT_CAST (self),
priv->adapter_luid, &self->device);
} else {
gst_clear_object (&self->device);
gst_d3d12_ensure_element_data (GST_ELEMENT_CAST (self),
priv->adapter_index, &self->device);
}
if (!self->device) {
lk.unlock ();
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
("D3D12 device is not available"), (nullptr));
return FALSE;
}
capture = gst_d3d12_dxgi_capture_new (self->device, monitor);
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_WGC) {
capture = gst_d3d12_graphics_capture_new (self->device,
priv->window_handle, monitor);
} else {
capture = gst_d3d12_dxgi_capture_new (self->device, monitor);
}
if (!capture) {
GST_ERROR_OBJECT (self, "Couldn't create capture object");
goto error;
@ -666,6 +908,17 @@ gst_d3d12_screen_capture_src_start (GstBaseSrc * bsrc)
case GST_FLOW_OK:
break;
case GST_D3D12_SCREEN_CAPTURE_FLOW_UNSUPPORTED:
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_DXGI) {
gst_clear_object (&capture);
GST_WARNING_OBJECT (self, "DXGI capture is not available");
capture = gst_d3d12_graphics_capture_new (self->device,
nullptr, monitor);
if (capture) {
priv->selected_capture_api = GST_D3D12_SCREEN_CAPTURE_API_WGC;
GST_INFO_OBJECT (self, "Fallback to Windows Graphics Capture");
break;
}
}
goto unsupported;
default:
goto error;
@ -675,11 +928,26 @@ gst_d3d12_screen_capture_src_start (GstBaseSrc * bsrc)
priv->latency = GST_CLOCK_TIME_NONE;
priv->capture = capture;
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_WGC) {
auto wgc = GST_D3D12_GRAPHICS_CAPTURE (priv->capture);
gst_d3d12_graphics_capture_show_cursor (wgc, priv->show_cursor);
gst_d3d12_graphics_capture_show_border (wgc, priv->show_border);
gst_d3d12_graphics_capture_set_client_only (wgc,
priv->hwnd_capture_mode == GST_D3D12_WINDOW_CAPTURE_CLIENT);
}
if (priv->capture_api != priv->selected_capture_api) {
priv->capture_api = priv->selected_capture_api;
lk.unlock ();
g_object_notify (G_OBJECT (self), "capture-api");
}
return TRUE;
error:
{
gst_clear_object (&capture);
lk.unlock ();
GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND,
("Failed to prepare capture object with given configuration, "
"monitor-index: %d, monitor-handle: %p",
@ -690,6 +958,7 @@ error:
unsupported:
{
gst_clear_object (&capture);
lk.unlock ();
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ,
("Failed to prepare capture object with given configuration, "
"monitor-index: %d, monitor-handle: %p",
@ -710,6 +979,7 @@ gst_d3d12_screen_capture_src_stop (GstBaseSrc * bsrc)
gst_clear_object (&priv->pool);
}
std::lock_guard < std::recursive_mutex > lk (priv->lock);
gst_clear_object (&priv->capture);
gst_clear_object (&self->device);
@ -723,10 +993,14 @@ gst_d3d12_screen_capture_src_unlock (GstBaseSrc * bsrc)
auto priv = self->priv;
std::lock_guard < std::mutex > lk (priv->flush_lock);
if (priv->capture)
gst_d3d12_screen_capture_unlock (priv->capture);
if (priv->clock_id) {
GST_DEBUG_OBJECT (self, "Waking up waiting clock");
gst_clock_id_unschedule (priv->clock_id);
}
priv->flushing = TRUE;
return TRUE;
@ -739,6 +1013,9 @@ gst_d3d12_screen_capture_src_unlock_stop (GstBaseSrc * bsrc)
auto priv = self->priv;
std::lock_guard < std::mutex > lk (priv->flush_lock);
if (priv->capture)
gst_d3d12_screen_capture_unlock_stop (priv->capture);
priv->flushing = FALSE;
return TRUE;
@ -777,8 +1054,142 @@ gst_d3d12_screen_capture_src_src_query (GstBaseSrc * bsrc, GstQuery * query)
}
static GstFlowReturn
gst_d3d12_screen_capture_src_create (GstBaseSrc * bsrc, guint64 offset,
guint size, GstBuffer ** buf)
gst_d3d12_screen_capture_src_wgc_capture (GstBaseSrc * bsrc,
guint64 offset, guint size, GstBuffer ** buf)
{
auto self = GST_D3D12_SCREEN_CAPTURE_SRC (bsrc);
auto priv = self->priv;
GstClockTime base_time;
GstClockTime next_capture_ts;
GstClockTime dur;
guint64 next_frame_no;
auto fps_n = GST_VIDEO_INFO_FPS_N (&priv->video_info);
auto fps_d = GST_VIDEO_INFO_FPS_D (&priv->video_info);
if (fps_n <= 0 || fps_d <= 0)
return GST_FLOW_NOT_NEGOTIATED;
auto clock = gst_element_get_clock (GST_ELEMENT_CAST (self));
{
std::unique_lock < std::mutex > lk (priv->flush_lock);
if (priv->flushing) {
gst_clear_object (&clock);
return GST_FLOW_FLUSHING;
}
base_time = GST_ELEMENT_CAST (self)->base_time;
next_capture_ts = gst_clock_get_time (clock);
next_capture_ts -= base_time;
next_frame_no = gst_util_uint64_scale (next_capture_ts,
fps_n, GST_SECOND * fps_d);
if (next_frame_no == priv->last_frame_no) {
GstClockID id;
GstClockReturn clock_ret;
/* Need to wait for the next frame */
next_frame_no += 1;
/* Figure out what the next frame time is */
next_capture_ts = gst_util_uint64_scale (next_frame_no,
fps_d * GST_SECOND, fps_n);
id = gst_clock_new_single_shot_id (GST_ELEMENT_CLOCK (self),
next_capture_ts + base_time);
priv->clock_id = id;
/* release the object lock while waiting */
lk.unlock ();
GST_LOG_OBJECT (self, "Waiting for next frame time %" GST_TIME_FORMAT,
GST_TIME_ARGS (next_capture_ts));
clock_ret = gst_clock_id_wait (id, nullptr);
lk.lock ();
gst_clock_id_unref (id);
priv->clock_id = nullptr;
if (clock_ret == GST_CLOCK_UNSCHEDULED) {
/* Got woken up by the unlock function */
gst_clear_object (&clock);
return GST_FLOW_FLUSHING;
}
/* Duration is a complete 1/fps frame duration */
dur = gst_util_uint64_scale_int (GST_SECOND, fps_d, fps_n);
} else {
GstClockTime next_frame_ts;
GST_LOG_OBJECT (self, "No need to wait for next frame time %"
GST_TIME_FORMAT " next frame = %" G_GINT64_FORMAT " prev = %"
G_GINT64_FORMAT, GST_TIME_ARGS (next_capture_ts), next_frame_no,
priv->last_frame_no);
next_frame_ts = gst_util_uint64_scale (next_frame_no + 1,
fps_d * GST_SECOND, fps_n);
/* Frame duration is from now until the next expected capture time */
dur = next_frame_ts - next_capture_ts;
}
}
gst_clear_object (&clock);
priv->last_frame_no = next_frame_no;
auto wgc = GST_D3D12_GRAPHICS_CAPTURE (priv->capture);
GstBuffer *buffer = nullptr;
guint width, height;
CaptureCropRect crop_rect;
{
std::lock_guard < std::recursive_mutex > lk (priv->lock);
crop_rect = priv->crop_rect;
}
auto ret = gst_d3d12_graphics_capture_do_capture (wgc,
priv->downstream_supports_d3d12, &crop_rect, &buffer, &width, &height);
if (ret != GST_FLOW_OK)
return ret;
if (width != priv->video_info.width || height != priv->video_info.height) {
gst_video_info_set_format (&priv->video_info, GST_VIDEO_FORMAT_BGRA,
width, height);
priv->video_info.fps_n = fps_n;
priv->video_info.fps_d = fps_d;
auto caps = gst_pad_get_current_caps (bsrc->srcpad);
if (!caps || gst_caps_is_any (caps)) {
GST_ERROR_OBJECT (self, "Couldn't get current caps");
gst_clear_caps (&caps);
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "width", G_TYPE_INT, width, "height", G_TYPE_INT,
height, nullptr);
auto caps_ret = gst_base_src_set_caps (bsrc, caps);
gst_caps_unref (caps);
if (!caps_ret) {
GST_ERROR_OBJECT (self, "Couldn't update caps");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
}
GST_BUFFER_DTS (buffer) = GST_CLOCK_TIME_NONE;
GST_BUFFER_PTS (buffer) = next_capture_ts;
GST_BUFFER_DURATION (buffer) = dur;
*buf = buffer;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d12_screen_capture_src_dxgi_capture (GstBaseSrc * bsrc,
guint64 offset, guint size, GstBuffer ** buf)
{
auto self = GST_D3D12_SCREEN_CAPTURE_SRC (bsrc);
auto priv = self->priv;
@ -795,11 +1206,7 @@ gst_d3d12_screen_capture_src_create (GstBaseSrc * bsrc, guint64 offset,
GstBuffer *buffer = nullptr;
D3D12_BOX crop_box;
if (!priv->capture) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ,
("Couldn't configure capture object"), (nullptr));
return GST_FLOW_NOT_NEGOTIATED;
}
auto dxgi_capture = GST_D3D12_DXGI_CAPTURE (priv->capture);
fps_n = GST_VIDEO_INFO_FPS_N (&priv->video_info);
fps_d = GST_VIDEO_INFO_FPS_D (&priv->video_info);
@ -906,7 +1313,7 @@ again:
}
auto before_capture = gst_util_get_timestamp ();
ret = gst_d3d12_screen_capture_do_capture (priv->capture, buffer,
ret = gst_d3d12_dxgi_capture_do_capture (dxgi_capture, buffer,
&crop_box, draw_mouse);
switch (ret) {
@ -1004,3 +1411,22 @@ again:
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d12_screen_capture_src_create (GstBaseSrc * bsrc, guint64 offset,
guint size, GstBuffer ** buf)
{
auto self = GST_D3D12_SCREEN_CAPTURE_SRC (bsrc);
auto priv = self->priv;
if (!priv->capture) {
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ,
("Couldn't configure capture object"), (nullptr));
return GST_FLOW_NOT_NEGOTIATED;
}
if (priv->selected_capture_api == GST_D3D12_SCREEN_CAPTURE_API_DXGI)
return gst_d3d12_screen_capture_src_dxgi_capture (bsrc, offset, size, buf);
return gst_d3d12_screen_capture_src_wgc_capture (bsrc, offset, size, buf);
}

35
subprojects/gst-plugins-bad/sys/d3d12/meson.build
View file

@ -20,6 +20,7 @@ d3d12_sources = [
'gstd3d12encoderbufferpool.cpp',
'gstd3d12fencedatapool.cpp',
'gstd3d12format.cpp',
'gstd3d12graphicscapture.cpp',
'gstd3d12h264dec.cpp',
'gstd3d12h264enc.cpp',
'gstd3d12h265dec.cpp',
@ -64,6 +65,7 @@ d3d12_lib = cc.find_library('d3d12', required : d3d12_option)
d3d11_lib = cc.find_library('d3d11', required : d3d12_option)
d2d_dep = cc.find_library('d2d1', required: d3d12_option)
dxgi_lib = cc.find_library('dxgi', required : d3d12_option)
dwmapi_lib = cc.find_library('dwmapi', required: d3d12_option)
dx_headers_dep = dependency('DirectX-Headers',
version: '>= 1.611',
allow_fallback: true,
@ -71,13 +73,40 @@ dx_headers_dep = dependency('DirectX-Headers',
dxc = find_program('dxc', required : d3d12_option)
if not gstdxva_dep.found() or not d3d12_lib.found() or not dxgi_lib.found() \
or not dx_headers_dep.found() or not dxc.found() or not d2d_dep.found()
or not dx_headers_dep.found() or not dxc.found() or not d2d_dep.found() \
or not dwmapi_lib.found()
if d3d12_option.enabled()
error('The d3d12 was enabled explicitly, but required dependencies were not found.')
endif
subdir_done()
endif
have_wgc = cxx.compiles('''
#include<windows.h>
#include<winstring.h>
#include<roapi.h>
#include<windows.graphics.capture.h>,
#include<windows.graphics.capture.interop.h>
#include<windows.graphics.directx.direct3d11.h>
#include<windows.graphics.directx.direct3d11.interop.h>
#include<wrl.h>
using namespace Microsoft::WRL;
using namespace ABI::Windows::Graphics::Capture;
ComPtr<IDirect3D11CaptureFramePoolStatics> pool_statics;
ComPtr<IDirect3D11CaptureFramePool> pool;
ComPtr<IGraphicsCaptureSession> session;
ComPtr<IGraphicsCaptureSession2> session2;
ComPtr<IGraphicsCaptureSession3> session3;
''',
name: 'Windows Graphics Capture support in Windows SDK')
if not have_wgc
if d3d12_option.enabled()
error('Windows SDK does not support Windows Graphics Capture')
endif
subdir_done()
endif
d3d12_headers = [
'dxgi1_6.h',
'd3d11.h',
@ -114,9 +143,9 @@ gstd3d12 = library('gstd3d12',
c_args : gst_plugins_bad_args + extra_args,
cpp_args: gst_plugins_bad_args + extra_args,
include_directories : [configinc],
dependencies : [gstbase_dep, gstvideo_dep, gstcodecs_dep,
dependencies : [gstbase_dep, gstvideo_dep, gstcodecs_dep, gmodule_dep,
gstdxva_dep, d3d12_lib, d3d11_lib, d2d_dep, dxgi_lib,
dx_headers_dep],
dx_headers_dep, dwmapi_lib],
install : true,
install_dir : plugins_install_dir,
)