/* GStreamer * Copyright (C) 2019 Seungha Yang * Copyright (C) 2020 Seungha Yang * * 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 "gstd3d11videoprocessor.h" #include "gstd3d11pluginutils.h" #include #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, }; #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 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_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; /* saved render rectangle until we have a window */ GstVideoRectangle render_rect; gboolean pending_render_rect; GstBufferPool *fallback_pool; gboolean have_video_processor; gboolean processor_in_use; /* For drawing on user texture */ gboolean drawing; GstBuffer *current_buffer; GRecMutex draw_lock; gchar *title; }; 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); #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::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); 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 "); 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); } 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; 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; 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; 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_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 gboolean 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; GST_DEBUG_OBJECT (self, "Updating window with caps %" GST_PTR_FORMAT, caps); self->caps_updated = FALSE; 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 (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) goto no_display_size; GST_OBJECT_LOCK (self); if (self->pending_render_rect) { GstVideoRectangle rect = self->render_rect; self->pending_render_rect = FALSE; GST_OBJECT_UNLOCK (self); gst_d3d11_window_set_render_rectangle (self->window, &rect); } else { 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, GST_D3D11_ALLOCATION_FLAG_DEFAULT, bind_flags, 0); 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; if (self->title) { gst_d3d11_window_set_title (self->window, self->title); g_clear_pointer (&self->title, g_free); } return TRUE; /* ERRORS */ invalid_format: { GST_DEBUG_OBJECT (self, "Could not locate image format from caps %" GST_PTR_FORMAT, caps); return FALSE; } no_window: { GST_ELEMENT_ERROR (self, RESOURCE, NOT_FOUND, (NULL), ("Failed to open window.")); return FALSE; } no_disp_ratio: { GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL), ("Error calculating the output display ratio of the video.")); return FALSE; } no_display_size: { GST_ELEMENT_ERROR (self, 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) { GstEvent *key_event = NULL; if (self->enable_navigation_events) { GST_LOG_OBJECT (self, "send key event %s, key %s", event, key); if (0 == g_strcmp0 ("key-press", event)) key_event = gst_navigation_event_new_key_press (key, GST_NAVIGATION_MODIFIER_NONE); else if (0 == g_strcmp0 ("key-release", event)) key_event = gst_navigation_event_new_key_release (key, GST_NAVIGATION_MODIFIER_NONE); if (event) 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 = NULL; if (self->enable_navigation_events) { GST_LOG_OBJECT (self, "send mouse event %s, button %d (%.1f, %.1f)", event, button, x, y); if (0 == g_strcmp0 ("mouse-button-press", event)) mouse_event = gst_navigation_event_new_mouse_button_press (button, x, y, GST_NAVIGATION_MODIFIER_NONE); else if (0 == g_strcmp0 ("mouse-button-release", event)) mouse_event = gst_navigation_event_new_mouse_button_release (button, x, y, GST_NAVIGATION_MODIFIER_NONE); else if (0 == g_strcmp0 ("mouse-move", event)) mouse_event = gst_navigation_event_new_mouse_move (x, y, GST_NAVIGATION_MODIFIER_NONE); if (event) gst_navigation_send_event_simple (GST_NAVIGATION (self), mouse_event); } } 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; } 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; } 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); 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); 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) 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_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; 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; 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); } break; } default: break; } return GST_BASE_SINK_CLASS (parent_class)->event (sink, event); } 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; GstVideoCropMeta *crop_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); /* And copy crop meta as well */ crop_meta = gst_buffer_get_video_crop_meta (inbuf); if (crop_meta) { GstVideoCropMeta *new_crop_meta = gst_buffer_add_video_crop_meta (outbuf); new_crop_meta->x = crop_meta->x; new_crop_meta->y = crop_meta->y; new_crop_meta->width = crop_meta->width; new_crop_meta->height = crop_meta->height; } *fallback_buf = outbuf; return TRUE; error: gst_buffer_unref (outbuf); return FALSE; } 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; GstBuffer *fallback_buf = NULL; ID3D11Device *device_handle = gst_d3d11_device_get_device_handle (self->device); ID3D11ShaderResourceView *view[GST_VIDEO_MAX_PLANES]; 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)); gboolean update_ret; /* shouldn't happen */ if (!caps) return GST_FLOW_NOT_NEGOTIATED; update_ret = gst_d3d11_video_sink_update_window (self, caps); gst_caps_unref (caps); if (!update_ret) return GST_FLOW_NOT_NEGOTIATED; } 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); 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 */ 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 { ret = gst_d3d11_window_render (self->window, fallback_buf ? fallback_buf : buf); } 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) { GstVideoRectangle rect; rect.x = x; rect.y = y; rect.w = width; rect.h = height; self->render_rect = rect; GST_OBJECT_UNLOCK (self); 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; 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) { gst_d3d11_window_render (self->window, 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, 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; } 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; }