/* GStreamer * Copyright (C) 2012 Roland Krikava * Copyright (C) 2010-2011 David Hoyt * Copyright (C) 2010 Andoni Morales * Copyright (C) 2012 Sebastian Dröge * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "d3dvideosink.h" #define ELEMENT_NAME "d3dvideosink" enum { PROP_0, PROP_FORCE_ASPECT_RATIO, PROP_CREATE_RENDER_WINDOW, PROP_STREAM_STOP_ON_CLOSE, PROP_ENABLE_NAVIGATION_EVENTS, PROP_LAST }; #define DEFAULT_FORCE_ASPECT_RATIO TRUE #define DEFAULT_CREATE_RENDER_WINDOW TRUE #define DEFAULT_STREAM_STOP_ON_CLOSE TRUE #define DEFAULT_ENABLE_NAVIGATION_EVENTS TRUE static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-raw, " "format = (string) { I420, YV12, UYVY, YUY2, NV12, BGRx, RGBx, RGBA, BGRA, BGR, RGB16, RGB15 }, " "framerate = (fraction) [ 0, MAX ], " "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]") ); GST_DEBUG_CATEGORY (gst_d3dvideosink_debug); #define GST_CAT_DEFAULT gst_d3dvideosink_debug /** FWD DECLS **/ /* GstXOverlay Interface */ static void gst_d3dvideosink_video_overlay_interface_init (GstVideoOverlayInterface * iface); static void gst_d3dvideosink_set_window_handle (GstVideoOverlay * overlay, guintptr window_id); static void gst_d3dvideosink_set_render_rectangle (GstVideoOverlay * overlay, gint x, gint y, gint width, gint height); static void gst_d3dvideosink_expose (GstVideoOverlay * overlay); /* GstNavigation Interface */ static void gst_d3dvideosink_navigation_interface_init (GstNavigationInterface * iface); static void gst_d3dvideosink_navigation_send_event (GstNavigation * navigation, GstStructure * structure); /* GObject */ static void gst_d3dvideosink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_d3dvideosink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_d3dvideosink_finalize (GObject * gobject); /* GstBaseSink */ static GstCaps *gst_d3dvideosink_get_caps (GstBaseSink * basesink, GstCaps * filter); static gboolean gst_d3dvideosink_set_caps (GstBaseSink * bsink, GstCaps * caps); static gboolean gst_d3dvideosink_start (GstBaseSink * sink); static gboolean gst_d3dvideosink_stop (GstBaseSink * sink); static gboolean gst_d3dvideosink_propose_allocation (GstBaseSink * bsink, GstQuery * query); /* GstVideoSink */ static GstFlowReturn gst_d3dvideosink_show_frame (GstVideoSink * vsink, GstBuffer * buffer); #define _do_init \ G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION, gst_d3dvideosink_navigation_interface_init); \ G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY, gst_d3dvideosink_video_overlay_interface_init); \ GST_DEBUG_CATEGORY_INIT (gst_d3dvideosink_debug, ELEMENT_NAME, 0, "Direct3D Video"); G_DEFINE_TYPE_WITH_CODE (GstD3DVideoSink, gst_d3dvideosink, GST_TYPE_VIDEO_SINK, _do_init); static void gst_d3dvideosink_class_init (GstD3DVideoSinkClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstVideoSinkClass *gstvideosink_class; GstBaseSinkClass *gstbasesink_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstvideosink_class = (GstVideoSinkClass *) klass; gstbasesink_class = (GstBaseSinkClass *) klass; gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_d3dvideosink_finalize); gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_d3dvideosink_set_property); gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_d3dvideosink_get_property); gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_d3dvideosink_get_caps); gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_d3dvideosink_set_caps); gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_d3dvideosink_start); gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_d3dvideosink_stop); gstbasesink_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_d3dvideosink_propose_allocation); gstvideosink_class->show_frame = GST_DEBUG_FUNCPTR (gst_d3dvideosink_show_frame); /* Add properties */ g_object_class_install_property (G_OBJECT_CLASS (klass), 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 (G_OBJECT_CLASS (klass), PROP_CREATE_RENDER_WINDOW, g_param_spec_boolean ("create-render-window", "Create render window", "If no window ID is given, a new render window is created", DEFAULT_CREATE_RENDER_WINDOW, (GParamFlags) G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_STREAM_STOP_ON_CLOSE, g_param_spec_boolean ("stream-stop-on-close", "Stop streaming on window close", "If the render window is closed stop stream", DEFAULT_STREAM_STOP_ON_CLOSE, (GParamFlags) G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), 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)); gst_element_class_set_static_metadata (gstelement_class, "Direct3D video sink", "Sink/Video", "Display data using a Direct3D video renderer", "David Hoyt , Roland Krikava "); gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&sink_template)); g_rec_mutex_init (&klass->lock); } static void gst_d3dvideosink_init (GstD3DVideoSink * sink) { GST_DEBUG_OBJECT (sink, " "); /* Init Properties */ sink->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO; sink->create_internal_window = DEFAULT_CREATE_RENDER_WINDOW; sink->stream_stop_on_close = DEFAULT_STREAM_STOP_ON_CLOSE; sink->enable_navigation_events = DEFAULT_ENABLE_NAVIGATION_EVENTS; g_rec_mutex_init (&sink->lock); } /** GObject Functions **/ static void gst_d3dvideosink_finalize (GObject * gobject) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (gobject); GST_DEBUG_OBJECT (sink, " "); gst_object_replace ((GstObject **) & sink->pool, NULL); gst_object_replace ((GstObject **) & sink->fallback_pool, NULL); gst_caps_replace (&sink->supported_caps, NULL); g_rec_mutex_clear (&sink->lock); G_OBJECT_CLASS (gst_d3dvideosink_parent_class)->finalize (gobject); } static void gst_d3dvideosink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (object); switch (prop_id) { case PROP_FORCE_ASPECT_RATIO: sink->force_aspect_ratio = g_value_get_boolean (value); break; case PROP_CREATE_RENDER_WINDOW: sink->create_internal_window = g_value_get_boolean (value); break; case PROP_STREAM_STOP_ON_CLOSE: sink->stream_stop_on_close = g_value_get_boolean (value); break; case PROP_ENABLE_NAVIGATION_EVENTS: sink->enable_navigation_events = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_d3dvideosink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (object); switch (prop_id) { case PROP_FORCE_ASPECT_RATIO: g_value_set_boolean (value, sink->force_aspect_ratio); break; case PROP_CREATE_RENDER_WINDOW: g_value_set_boolean (value, sink->create_internal_window); break; case PROP_STREAM_STOP_ON_CLOSE: g_value_set_boolean (value, sink->stream_stop_on_close); break; case PROP_ENABLE_NAVIGATION_EVENTS: g_value_set_boolean (value, sink->enable_navigation_events); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /** GstBaseSinkClass Functions **/ static GstCaps * gst_d3dvideosink_get_caps (GstBaseSink * basesink, GstCaps * filter) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (basesink); GstCaps *caps; caps = d3d_supported_caps (sink); if (!caps) caps = gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD (sink)); if (caps && filter) { GstCaps *isect; isect = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST); gst_caps_unref (caps); caps = isect; } return caps; } static gboolean gst_d3dvideosink_set_caps (GstBaseSink * bsink, GstCaps * caps) { GstD3DVideoSink *sink; GstCaps *sink_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; gchar *tmp = NULL; GstBufferPool *newpool, *oldpool; GstBufferPool *newfbpool, *oldfbpool; GstStructure *config; GST_DEBUG_OBJECT (bsink, " "); GST_DEBUG_OBJECT (bsink, "Caps: %s", (tmp = gst_caps_to_string (caps))); sink = GST_D3DVIDEOSINK (bsink); sink_caps = d3d_supported_caps (sink); if (!gst_caps_can_intersect (sink_caps, caps)) goto incompatible_caps; gst_caps_replace (&sink_caps, NULL); memset (&sink->info, 0, sizeof (GstVideoInfo)); if (!gst_video_info_from_caps (&sink->info, caps)) goto invalid_format; sink->format = sink->info.finfo->format; video_width = sink->info.width; video_height = sink->info.height; video_par_n = sink->info.par_n; video_par_d = sink->info.par_d; GST_DEBUG_OBJECT (bsink, "Set Caps Format: %s", gst_video_format_to_string (sink->format)); /* get aspect ratio from caps if it's present, and * convert video width and height to a display width and height * using wd / hd = wv / hv * PARv / PARd */ /* TODO: Get display PAR */ if (!gst_video_calculate_display_ratio (&num, &den, video_width, video_height, video_par_n, video_par_d, display_par_n, display_par_d)) goto no_disp_ratio; GST_DEBUG_OBJECT (sink, "video width/height: %dx%d, calculated display ratio: %d/%d format: %u", video_width, video_height, num, den, sink->format); /* 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 (sink, "keeping video height"); GST_VIDEO_SINK_WIDTH (sink) = (guint) gst_util_uint64_scale_int (video_height, num, den); GST_VIDEO_SINK_HEIGHT (sink) = video_height; } else if (video_width % num == 0) { GST_DEBUG_OBJECT (sink, "keeping video width"); GST_VIDEO_SINK_WIDTH (sink) = video_width; GST_VIDEO_SINK_HEIGHT (sink) = (guint) gst_util_uint64_scale_int (video_width, den, num); } else { GST_DEBUG_OBJECT (sink, "approximating while keeping video height"); GST_VIDEO_SINK_WIDTH (sink) = (guint) gst_util_uint64_scale_int (video_height, num, den); GST_VIDEO_SINK_HEIGHT (sink) = video_height; } GST_DEBUG_OBJECT (sink, "scaling to %dx%d", GST_VIDEO_SINK_WIDTH (sink), GST_VIDEO_SINK_HEIGHT (sink)); if (GST_VIDEO_SINK_WIDTH (sink) <= 0 || GST_VIDEO_SINK_HEIGHT (sink) <= 0) goto no_display_size; memset (&sink->crop_rect, 0, sizeof (sink->crop_rect)); sink->crop_rect.w = sink->info.width; sink->crop_rect.h = sink->info.height; sink->width = video_width; sink->height = video_height; GST_DEBUG_OBJECT (bsink, "Selected caps: %s", (tmp = gst_caps_to_string (caps))); g_free (tmp); if (!d3d_set_render_format (sink)) goto incompatible_caps; /* Create a window (or start using an application-supplied one, then connect the graph */ d3d_prepare_window (sink); newpool = gst_d3dsurface_buffer_pool_new (sink); config = gst_buffer_pool_get_config (newpool); /* we need at least 2 buffer because we hold on to the last one */ gst_buffer_pool_config_set_params (config, caps, sink->info.size, 2, 0); if (!gst_buffer_pool_set_config (newpool, config)) { gst_object_unref (newpool); GST_ERROR_OBJECT (sink, "Failed to set buffer pool configuration"); return FALSE; } newfbpool = gst_d3dsurface_buffer_pool_new (sink); config = gst_buffer_pool_get_config (newfbpool); /* we need at least 2 buffer because we hold on to the last one */ gst_buffer_pool_config_set_params (config, caps, sink->info.size, 2, 0); /* Fallback pool must use videometa */ gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); if (!gst_buffer_pool_set_config (newfbpool, config)) { gst_object_unref (newfbpool); GST_ERROR_OBJECT (sink, "Failed to set buffer pool configuration"); return FALSE; } GST_OBJECT_LOCK (sink); oldpool = sink->pool; sink->pool = newpool; oldfbpool = sink->fallback_pool; sink->fallback_pool = newfbpool; GST_OBJECT_UNLOCK (sink); if (oldpool) gst_object_unref (oldpool); if (oldfbpool) gst_object_unref (oldfbpool); return TRUE; /* ERRORS */ incompatible_caps: { GST_ERROR_OBJECT (sink, "caps incompatible"); gst_caps_unref (sink_caps); return FALSE; } invalid_format: { gchar *caps_txt = gst_caps_to_string (caps); GST_DEBUG_OBJECT (sink, "Could not locate image format from caps %s", caps_txt); g_free (caps_txt); return FALSE; } no_disp_ratio: { GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL), ("Error calculating the output display ratio of the video.")); return FALSE; } no_display_size: { GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL), ("Error calculating the output display ratio of the video.")); return FALSE; } } static gboolean gst_d3dvideosink_start (GstBaseSink * bsink) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (bsink); GST_DEBUG_OBJECT (bsink, "Start() called"); return d3d_class_init (sink); } static gboolean gst_d3dvideosink_stop (GstBaseSink * bsink) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (bsink); GST_DEBUG_OBJECT (bsink, "Stop() called"); d3d_stop (sink); d3d_class_destroy (sink); return TRUE; } static gboolean gst_d3dvideosink_propose_allocation (GstBaseSink * bsink, GstQuery * query) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (bsink); GstBufferPool *pool; GstStructure *config; GstCaps *caps; guint size; gboolean need_pool; gst_query_parse_allocation (query, &caps, &need_pool); if (!caps) { GST_DEBUG_OBJECT (sink, "no caps specified"); return FALSE; } gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL); gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL); GST_OBJECT_LOCK (sink); pool = sink->pool ? gst_object_ref (sink->pool) : NULL; GST_OBJECT_UNLOCK (sink); if (pool) { GstCaps *pcaps; /* we had a pool, check caps */ GST_DEBUG_OBJECT (sink, "check existing pool caps"); config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL); if (!gst_caps_is_equal (caps, pcaps)) { GST_DEBUG_OBJECT (sink, "pool has different caps"); /* different caps, we can't use this pool */ gst_object_unref (pool); pool = NULL; } gst_structure_free (config); } if (pool == NULL && need_pool) { GstVideoInfo info; if (!gst_video_info_from_caps (&info, caps)) { GST_ERROR_OBJECT (sink, "allocation query has invalid caps %" GST_PTR_FORMAT, caps); return FALSE; } GST_DEBUG_OBJECT (sink, "create new pool"); pool = gst_d3dsurface_buffer_pool_new (sink); /* the normal size of a frame */ size = info.size; config = gst_buffer_pool_get_config (pool); /* we need at least 2 buffer because we hold on to the last one */ gst_buffer_pool_config_set_params (config, caps, size, 2, 0); if (!gst_buffer_pool_set_config (pool, config)) { gst_object_unref (pool); GST_ERROR_OBJECT (sink, "failed to set pool configuration"); return FALSE; } } if (pool) { /* we need at least 2 buffer because we hold on to the last one */ gst_query_add_allocation_pool (query, pool, size, 2, 0); gst_object_unref (pool); } return TRUE; } /** PUBLIC FUNCTIONS **/ /* Iterface Registrations */ static void gst_d3dvideosink_video_overlay_interface_init (GstVideoOverlayInterface * iface) { iface->set_window_handle = gst_d3dvideosink_set_window_handle; iface->set_render_rectangle = gst_d3dvideosink_set_render_rectangle; iface->expose = gst_d3dvideosink_expose; } static void gst_d3dvideosink_navigation_interface_init (GstNavigationInterface * iface) { iface->send_event = gst_d3dvideosink_navigation_send_event; } /* Video Render Code */ static void gst_d3dvideosink_set_window_handle (GstVideoOverlay * overlay, guintptr window_id) { d3d_set_window_handle (GST_D3DVIDEOSINK (overlay), window_id, FALSE); } static void gst_d3dvideosink_set_render_rectangle (GstVideoOverlay * overlay, gint x, gint y, gint width, gint height) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (overlay); sink->render_rect.x = x; sink->render_rect.y = y; sink->render_rect.w = width; sink->render_rect.h = height; d3d_set_render_rectangle (sink); } static void gst_d3dvideosink_expose (GstVideoOverlay * overlay) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (overlay); d3d_expose_window (sink); } static GstFlowReturn gst_d3dvideosink_show_frame (GstVideoSink * vsink, GstBuffer * buffer) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (vsink); return d3d_render_buffer (sink, buffer); } /* Video Navigation Events */ static void gst_d3dvideosink_navigation_send_event (GstNavigation * navigation, GstStructure * structure) { GstD3DVideoSink *sink = GST_D3DVIDEOSINK (navigation); GstEvent *e; if ((e = gst_event_new_navigation (structure))) { GstPad *pad; if ((pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink)))) { gst_pad_send_event (pad, e); gst_object_unref (pad); } } } /** PRIVATE FUNCTIONS **/ /* Plugin entry point */ static gboolean plugin_init (GstPlugin * plugin) { /* PRIMARY: this is the best videosink to use on windows */ if (!gst_element_register (plugin, ELEMENT_NAME, GST_RANK_PRIMARY, GST_TYPE_D3DVIDEOSINK)) return FALSE; return TRUE; } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, d3dsinkwrapper, "Direct3D sink wrapper plugin", plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)