/* * GStreamer * Copyright (C) 2004, 2008 Wim Taymans * Copyright (C) 2010 Sebastian Dröge * Copyright (C) 2014 Mathieu Duponchelle * Copyright (C) 2014 Thibault Saunier * 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-d3d11compositor * @title: d3d11compositor * * A Direct3D11 based video compositing element. * * ## Example launch line * ``` * gst-launch-1.0 d3d11compositor name=c ! d3d11videosink \ * videotestsrc ! video/x-raw,width=320,height=240 ! c. \ * videotestsrc pattern=ball ! video/x-raw,width=100,height=100 ! c. * * Since: 1.20 * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstd3d11compositor.h" #include "gstd3d11pluginutils.h" #include #include GST_DEBUG_CATEGORY_STATIC (gst_d3d11_compositor_debug); #define GST_CAT_DEFAULT gst_d3d11_compositor_debug /* *INDENT-OFF* */ using namespace Microsoft::WRL; /* *INDENT-ON* */ typedef enum { GST_D3D11_COMPOSITOR_BACKGROUND_CHECKER, GST_D3D11_COMPOSITOR_BACKGROUND_BLACK, GST_D3D11_COMPOSITOR_BACKGROUND_WHITE, GST_D3D11_COMPOSITOR_BACKGROUND_TRANSPARENT, } GstD3D11CompositorBackground; #define GST_TYPE_D3D11_COMPOSITOR_BACKGROUND (gst_d3d11_compositor_background_get_type()) static GType gst_d3d11_compositor_background_get_type (void) { static GType compositor_background_type = 0; static const GEnumValue compositor_background[] = { {GST_D3D11_COMPOSITOR_BACKGROUND_CHECKER, "Checker pattern", "checker"}, {GST_D3D11_COMPOSITOR_BACKGROUND_BLACK, "Black", "black"}, {GST_D3D11_COMPOSITOR_BACKGROUND_WHITE, "White", "white"}, {GST_D3D11_COMPOSITOR_BACKGROUND_TRANSPARENT, "Transparent Background to enable further compositing", "transparent"}, {0, nullptr, nullptr}, }; if (!compositor_background_type) { compositor_background_type = g_enum_register_static ("GstD3D11CompositorBackground", compositor_background); } return compositor_background_type; } typedef enum { GST_D3D11_COMPOSITOR_OPERATOR_SOURCE, GST_D3D11_COMPOSITOR_OPERATOR_OVER, } GstD3D11CompositorOperator; /** * GstD3D11CompositorOperator: * * Since: 1.22 */ #define GST_TYPE_D3D11_COMPOSITOR_OPERATOR (gst_d3d11_compositor_operator_get_type()) static GType gst_d3d11_compositor_operator_get_type (void) { static GType compositor_operator_type = 0; static const GEnumValue compositor_operator[] = { {GST_D3D11_COMPOSITOR_OPERATOR_SOURCE, "Source", "source"}, {GST_D3D11_COMPOSITOR_OPERATOR_OVER, "Over", "over"}, {0, nullptr, nullptr}, }; if (!compositor_operator_type) { compositor_operator_type = g_enum_register_static ("GstD3D11CompositorOperator", compositor_operator); } return compositor_operator_type; } typedef enum { GST_D3D11_COMPOSITOR_SIZING_POLICY_NONE, GST_D3D11_COMPOSITOR_SIZING_POLICY_KEEP_ASPECT_RATIO, } GstD3D11CompositorSizingPolicy; #define GST_TYPE_D3D11_COMPOSITOR_SIZING_POLICY (gst_d3d11_compositor_sizing_policy_get_type()) static GType gst_d3d11_compositor_sizing_policy_get_type (void) { static GType sizing_policy_type = 0; static const GEnumValue sizing_polices[] = { {GST_D3D11_COMPOSITOR_SIZING_POLICY_NONE, "None: Image is scaled to fill configured destination rectangle without " "padding or keeping the aspect ratio", "none"}, {GST_D3D11_COMPOSITOR_SIZING_POLICY_KEEP_ASPECT_RATIO, "Keep Aspect Ratio: Image is scaled to fit destination rectangle " "specified by GstD3D11CompositorPad:{xpos, ypos, width, height} " "with preserved aspect ratio. Resulting image will be centered in " "the destination rectangle with padding if necessary", "keep-aspect-ratio"}, {0, nullptr, nullptr}, }; if (!sizing_policy_type) { sizing_policy_type = g_enum_register_static ("GstD3D11CompositorSizingPolicy", sizing_polices); } return sizing_policy_type; } /* *INDENT-OFF* */ static D3D11_RENDER_TARGET_BLEND_DESC blend_templ[] = { /* SOURCE */ { TRUE, D3D11_BLEND_ONE, D3D11_BLEND_ZERO, D3D11_BLEND_OP_ADD, D3D11_BLEND_ONE, D3D11_BLEND_ZERO, D3D11_BLEND_OP_ADD, D3D11_COLOR_WRITE_ENABLE_ALL }, /* OVER */ { TRUE, D3D11_BLEND_SRC_ALPHA, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD, D3D11_BLEND_ONE, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD, D3D11_COLOR_WRITE_ENABLE_ALL, }, }; /* *INDENT-ON* */ struct _GstD3D11CompositorPad { GstVideoAggregatorConvertPad parent; GstD3D11Converter *convert; gboolean position_updated; gboolean alpha_updated; gboolean blend_desc_updated; gboolean config_updated; ID3D11BlendState *blend; D3D11_RENDER_TARGET_BLEND_DESC desc; /* properties */ gint xpos; gint ypos; gint width; gint height; gdouble alpha; GstD3D11CompositorOperator op; GstD3D11CompositorSizingPolicy sizing_policy; GstVideoGammaMode gamma_mode; GstVideoPrimariesMode primaries_mode; }; typedef struct { ID3D11PixelShader *ps; ID3D11VertexShader *vs; ID3D11InputLayout *layout; ID3D11RasterizerState *rs; ID3D11Buffer *vertex_buffer; ID3D11Buffer *index_buffer; D3D11_VIEWPORT viewport; } GstD3D11CompositorQuad; typedef struct { /* [rtv][colors] */ FLOAT color[4][4]; } GstD3D11CompositorClearColor; struct _GstD3D11Compositor { GstVideoAggregator parent; GstD3D11Device *device; GstBuffer *fallback_buf; GstCaps *negotiated_caps; GstD3D11CompositorQuad *checker_background; /* black/white/transparent */ GstD3D11CompositorClearColor clear_color[3]; gboolean downstream_supports_d3d11; /* properties */ gint adapter; GstD3D11CompositorBackground background; }; enum { PROP_PAD_0, PROP_PAD_XPOS, PROP_PAD_YPOS, PROP_PAD_WIDTH, PROP_PAD_HEIGHT, PROP_PAD_ALPHA, PROP_PAD_OPERATOR, PROP_PAD_SIZING_POLICY, PROP_PAD_GAMMA_MODE, PROP_PAD_PRIMARIES_MODE, }; #define DEFAULT_PAD_XPOS 0 #define DEFAULT_PAD_YPOS 0 #define DEFAULT_PAD_WIDTH 0 #define DEFAULT_PAD_HEIGHT 0 #define DEFAULT_PAD_ALPHA 1.0 #define DEFAULT_PAD_OPERATOR GST_D3D11_COMPOSITOR_OPERATOR_OVER #define DEFAULT_PAD_SIZING_POLICY GST_D3D11_COMPOSITOR_SIZING_POLICY_NONE #define DEFAULT_PAD_GAMMA_MODE GST_VIDEO_GAMMA_MODE_NONE #define DEFAULT_PAD_PRIMARIES_MODE GST_VIDEO_PRIMARIES_MODE_NONE static void gst_d3d11_compositor_pad_dispose (GObject * object); static void gst_d3d11_compositor_pad_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_d3d11_compositor_pad_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_d3d11_compositor_pad_prepare_frame (GstVideoAggregatorPad * pad, GstVideoAggregator * vagg, GstBuffer * buffer, GstVideoFrame * prepared_frame); static void gst_d3d11_compositor_pad_clean_frame (GstVideoAggregatorPad * vpad, GstVideoAggregator * vagg, GstVideoFrame * prepared_frame); #define gst_d3d11_compositor_pad_parent_class parent_pad_class G_DEFINE_TYPE (GstD3D11CompositorPad, gst_d3d11_compositor_pad, GST_TYPE_VIDEO_AGGREGATOR_PAD); static void gst_d3d11_compositor_pad_class_init (GstD3D11CompositorPadClass * klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GstVideoAggregatorPadClass *vagg_pad_class = GST_VIDEO_AGGREGATOR_PAD_CLASS (klass); GParamFlags param_flags = (GParamFlags) (G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS); object_class->dispose = gst_d3d11_compositor_pad_dispose; object_class->set_property = gst_d3d11_compositor_pad_set_property; object_class->get_property = gst_d3d11_compositor_pad_get_property; g_object_class_install_property (object_class, PROP_PAD_XPOS, g_param_spec_int ("xpos", "X Position", "X position of the picture", G_MININT, G_MAXINT, DEFAULT_PAD_XPOS, param_flags)); g_object_class_install_property (object_class, PROP_PAD_YPOS, g_param_spec_int ("ypos", "Y Position", "Y position of the picture", G_MININT, G_MAXINT, DEFAULT_PAD_YPOS, param_flags)); g_object_class_install_property (object_class, PROP_PAD_WIDTH, g_param_spec_int ("width", "Width", "Width of the picture", G_MININT, G_MAXINT, DEFAULT_PAD_WIDTH, param_flags)); g_object_class_install_property (object_class, PROP_PAD_HEIGHT, g_param_spec_int ("height", "Height", "Height of the picture", G_MININT, G_MAXINT, DEFAULT_PAD_HEIGHT, param_flags)); g_object_class_install_property (object_class, PROP_PAD_ALPHA, g_param_spec_double ("alpha", "Alpha", "Alpha of the picture", 0.0, 1.0, DEFAULT_PAD_ALPHA, param_flags)); /** * GstD3D11CompositorPad:operator: * * Blending operator to use for blending this pad over the previous ones * * Since: 1.22 */ g_object_class_install_property (object_class, PROP_PAD_OPERATOR, g_param_spec_enum ("operator", "Operator", "Blending operator to use for blending this pad over the previous ones", GST_TYPE_D3D11_COMPOSITOR_OPERATOR, DEFAULT_PAD_OPERATOR, param_flags)); g_object_class_install_property (object_class, PROP_PAD_SIZING_POLICY, g_param_spec_enum ("sizing-policy", "Sizing policy", "Sizing policy to use for image scaling", GST_TYPE_D3D11_COMPOSITOR_SIZING_POLICY, DEFAULT_PAD_SIZING_POLICY, param_flags)); /** * GstD3D11CompositorPad:gamma-mode: * * Gamma conversion mode * * Since: 1.22 */ g_object_class_install_property (object_class, PROP_PAD_GAMMA_MODE, g_param_spec_enum ("gamma-mode", "Gamma mode", "Gamma conversion mode", GST_TYPE_VIDEO_GAMMA_MODE, DEFAULT_PAD_GAMMA_MODE, param_flags)); /** * GstD3D11CompositorPad:primaries-mode: * * Primaries conversion mode * * Since: 1.22 */ g_object_class_install_property (object_class, PROP_PAD_PRIMARIES_MODE, g_param_spec_enum ("primaries-mode", "Primaries Mode", "Primaries conversion mode", GST_TYPE_VIDEO_PRIMARIES_MODE, DEFAULT_PAD_PRIMARIES_MODE, param_flags)); vagg_pad_class->prepare_frame = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_pad_prepare_frame); vagg_pad_class->clean_frame = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_pad_clean_frame); gst_type_mark_as_plugin_api (GST_TYPE_D3D11_COMPOSITOR_OPERATOR, (GstPluginAPIFlags) 0); gst_type_mark_as_plugin_api (GST_TYPE_D3D11_COMPOSITOR_SIZING_POLICY, (GstPluginAPIFlags) 0); } static void gst_d3d11_compositor_pad_init (GstD3D11CompositorPad * pad) { pad->xpos = DEFAULT_PAD_XPOS; pad->ypos = DEFAULT_PAD_YPOS; pad->width = DEFAULT_PAD_WIDTH; pad->height = DEFAULT_PAD_HEIGHT; pad->alpha = DEFAULT_PAD_ALPHA; pad->op = DEFAULT_PAD_OPERATOR; pad->sizing_policy = DEFAULT_PAD_SIZING_POLICY; pad->desc = blend_templ[DEFAULT_PAD_OPERATOR]; pad->gamma_mode = DEFAULT_PAD_GAMMA_MODE; pad->primaries_mode = DEFAULT_PAD_PRIMARIES_MODE; } static void gst_d3d11_compositor_pad_dispose (GObject * object) { GstD3D11CompositorPad *self = GST_D3D11_COMPOSITOR_PAD (object); gst_clear_object (&self->convert); GST_D3D11_CLEAR_COM (self->blend); G_OBJECT_CLASS (parent_pad_class)->dispose (object); } static void gst_d3d11_compositor_pad_update_position (GstD3D11CompositorPad * self, gint * old, const GValue * value) { gint tmp = g_value_get_int (value); if (*old != tmp) { *old = tmp; self->position_updated = TRUE; } } static void gst_d3d11_compositor_pad_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstD3D11CompositorPad *pad = GST_D3D11_COMPOSITOR_PAD (object); switch (prop_id) { case PROP_PAD_XPOS: gst_d3d11_compositor_pad_update_position (pad, &pad->xpos, value); break; case PROP_PAD_YPOS: gst_d3d11_compositor_pad_update_position (pad, &pad->ypos, value); break; case PROP_PAD_WIDTH: gst_d3d11_compositor_pad_update_position (pad, &pad->width, value); break; case PROP_PAD_HEIGHT: gst_d3d11_compositor_pad_update_position (pad, &pad->height, value); break; case PROP_PAD_ALPHA:{ gdouble alpha = g_value_get_double (value); if (pad->alpha != alpha) { pad->alpha_updated = TRUE; pad->alpha = alpha; } break; } case PROP_PAD_OPERATOR:{ GstD3D11CompositorOperator op = (GstD3D11CompositorOperator) g_value_get_enum (value); if (op != pad->op) { pad->op = op; pad->desc = blend_templ[op]; pad->blend_desc_updated = TRUE; } break; } case PROP_PAD_SIZING_POLICY:{ GstD3D11CompositorSizingPolicy policy = (GstD3D11CompositorSizingPolicy) g_value_get_enum (value); if (pad->sizing_policy != policy) { pad->sizing_policy = policy; pad->position_updated = TRUE; } break; } case PROP_PAD_GAMMA_MODE:{ GstVideoGammaMode mode = (GstVideoGammaMode) g_value_get_enum (value); if (pad->gamma_mode != mode) { pad->gamma_mode = mode; pad->config_updated = TRUE; } break; } case PROP_PAD_PRIMARIES_MODE:{ GstVideoPrimariesMode mode = (GstVideoPrimariesMode) g_value_get_enum (value); if (pad->primaries_mode != mode) { pad->primaries_mode = mode; pad->config_updated = TRUE; } break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_d3d11_compositor_pad_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstD3D11CompositorPad *pad = GST_D3D11_COMPOSITOR_PAD (object); switch (prop_id) { case PROP_PAD_XPOS: g_value_set_int (value, pad->xpos); break; case PROP_PAD_YPOS: g_value_set_int (value, pad->ypos); break; case PROP_PAD_WIDTH: g_value_set_int (value, pad->width); break; case PROP_PAD_HEIGHT: g_value_set_int (value, pad->height); break; case PROP_PAD_ALPHA: g_value_set_double (value, pad->alpha); break; case PROP_PAD_OPERATOR: g_value_set_enum (value, pad->op); break; case PROP_PAD_SIZING_POLICY: g_value_set_enum (value, pad->sizing_policy); break; case PROP_PAD_GAMMA_MODE: g_value_set_enum (value, pad->gamma_mode); break; case PROP_PAD_PRIMARIES_MODE: g_value_set_enum (value, pad->primaries_mode); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_d3d11_compositor_pad_get_output_size (GstD3D11CompositorPad * comp_pad, gint out_par_n, gint out_par_d, gint * width, gint * height, gint * x_offset, gint * y_offset) { GstVideoAggregatorPad *vagg_pad = GST_VIDEO_AGGREGATOR_PAD (comp_pad); gint pad_width, pad_height; guint dar_n, dar_d; *x_offset = 0; *y_offset = 0; *width = 0; *height = 0; /* FIXME: Anything better we can do here? */ if (!vagg_pad->info.finfo || vagg_pad->info.finfo->format == GST_VIDEO_FORMAT_UNKNOWN) { GST_DEBUG_OBJECT (comp_pad, "Have no caps yet"); return; } pad_width = comp_pad->width <= 0 ? GST_VIDEO_INFO_WIDTH (&vagg_pad->info) : comp_pad->width; pad_height = comp_pad->height <= 0 ? GST_VIDEO_INFO_HEIGHT (&vagg_pad->info) : comp_pad->height; if (pad_width == 0 || pad_height == 0) return; if (!gst_video_calculate_display_ratio (&dar_n, &dar_d, pad_width, pad_height, GST_VIDEO_INFO_PAR_N (&vagg_pad->info), GST_VIDEO_INFO_PAR_D (&vagg_pad->info), out_par_n, out_par_d)) { GST_WARNING_OBJECT (comp_pad, "Cannot calculate display aspect ratio"); return; } GST_TRACE_OBJECT (comp_pad, "scaling %ux%u by %u/%u (%u/%u / %u/%u)", pad_width, pad_height, dar_n, dar_d, GST_VIDEO_INFO_PAR_N (&vagg_pad->info), GST_VIDEO_INFO_PAR_D (&vagg_pad->info), out_par_n, out_par_d); switch (comp_pad->sizing_policy) { case GST_D3D11_COMPOSITOR_SIZING_POLICY_NONE: /* Pick either height or width, whichever is an integer multiple of the * display aspect ratio. However, prefer preserving the height to account * for interlaced video. */ if (pad_height % dar_n == 0) { pad_width = gst_util_uint64_scale_int (pad_height, dar_n, dar_d); } else if (pad_width % dar_d == 0) { pad_height = gst_util_uint64_scale_int (pad_width, dar_d, dar_n); } else { pad_width = gst_util_uint64_scale_int (pad_height, dar_n, dar_d); } break; case GST_D3D11_COMPOSITOR_SIZING_POLICY_KEEP_ASPECT_RATIO:{ gint from_dar_n, from_dar_d, to_dar_n, to_dar_d, num, den; /* Calculate DAR again with actual video size */ if (!gst_util_fraction_multiply (GST_VIDEO_INFO_WIDTH (&vagg_pad->info), GST_VIDEO_INFO_HEIGHT (&vagg_pad->info), GST_VIDEO_INFO_PAR_N (&vagg_pad->info), GST_VIDEO_INFO_PAR_D (&vagg_pad->info), &from_dar_n, &from_dar_d)) { from_dar_n = from_dar_d = -1; } if (!gst_util_fraction_multiply (pad_width, pad_height, out_par_n, out_par_d, &to_dar_n, &to_dar_d)) { to_dar_n = to_dar_d = -1; } if (from_dar_n != to_dar_n || from_dar_d != to_dar_d) { /* Calculate new output resolution */ if (from_dar_n != -1 && from_dar_d != -1 && gst_util_fraction_multiply (from_dar_n, from_dar_d, out_par_d, out_par_n, &num, &den)) { GstVideoRectangle src_rect, dst_rect, rst_rect; src_rect.h = gst_util_uint64_scale_int (pad_width, den, num); if (src_rect.h == 0) { pad_width = 0; pad_height = 0; break; } src_rect.x = src_rect.y = 0; src_rect.w = pad_width; dst_rect.x = dst_rect.y = 0; dst_rect.w = pad_width; dst_rect.h = pad_height; /* Scale rect to be centered in destination rect */ gst_video_center_rect (&src_rect, &dst_rect, &rst_rect, TRUE); GST_LOG_OBJECT (comp_pad, "Re-calculated size %dx%d -> %dx%d (x-offset %d, y-offset %d)", pad_width, pad_height, rst_rect.w, rst_rect.h, rst_rect.x, rst_rect.h); *x_offset = rst_rect.x; *y_offset = rst_rect.y; pad_width = rst_rect.w; pad_height = rst_rect.h; } else { GST_WARNING_OBJECT (comp_pad, "Failed to calculate output size"); *x_offset = 0; *y_offset = 0; pad_width = 0; pad_height = 0; } } break; } } *width = pad_width; *height = pad_height; } static GstVideoRectangle clamp_rectangle (gint x, gint y, gint w, gint h, gint outer_width, gint outer_height) { gint x2 = x + w; gint y2 = y + h; GstVideoRectangle clamped; /* Clamp the x/y coordinates of this frame to the output boundaries to cover * the case where (say, with negative xpos/ypos or w/h greater than the output * size) the non-obscured portion of the frame could be outside the bounds of * the video itself and hence not visible at all */ clamped.x = CLAMP (x, 0, outer_width); clamped.y = CLAMP (y, 0, outer_height); clamped.w = CLAMP (x2, 0, outer_width) - clamped.x; clamped.h = CLAMP (y2, 0, outer_height) - clamped.y; return clamped; } static gboolean gst_d3d11_compositor_pad_check_frame_obscured (GstVideoAggregatorPad * pad, GstVideoAggregator * vagg) { GstD3D11CompositorPad *cpad = GST_D3D11_COMPOSITOR_PAD (pad); gint width, height; GstVideoInfo *info = &vagg->info; /* The rectangle representing this frame, clamped to the video's boundaries. * Due to the clamping, this is different from the frame width/height above. */ GstVideoRectangle frame_rect; gint x_offset, y_offset; /* There's three types of width/height here: * 1. GST_VIDEO_FRAME_WIDTH/HEIGHT: * The frame width/height (same as pad->info.height/width; * see gst_video_frame_map()) * 2. cpad->width/height: * The optional pad property for scaling the frame (if zero, the video is * left unscaled) */ if (cpad->alpha == 0) return TRUE; gst_d3d11_compositor_pad_get_output_size (cpad, GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info), &width, &height, &x_offset, &y_offset); frame_rect = clamp_rectangle (cpad->xpos + x_offset, cpad->ypos + y_offset, width, height, GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info)); if (frame_rect.w == 0 || frame_rect.h == 0) { GST_DEBUG_OBJECT (pad, "Resulting frame is zero-width or zero-height " "(w: %i, h: %i), skipping", frame_rect.w, frame_rect.h); return TRUE; } return FALSE; } static gboolean gst_d3d11_compositor_pad_prepare_frame (GstVideoAggregatorPad * pad, GstVideoAggregator * vagg, GstBuffer * buffer, GstVideoFrame * prepared_frame) { /* Skip this frame */ if (gst_d3d11_compositor_pad_check_frame_obscured (pad, vagg)) return TRUE; /* don't map/upload now, it will happen in converter object. * Just mark this frame is preparted instead */ prepared_frame->buffer = buffer; return TRUE; } static void gst_d3d11_compositor_pad_clean_frame (GstVideoAggregatorPad * vpad, GstVideoAggregator * vagg, GstVideoFrame * prepared_frame) { memset (prepared_frame, 0, sizeof (GstVideoFrame)); } static gboolean gst_d3d11_compositor_pad_setup_converter (GstVideoAggregatorPad * pad, GstVideoAggregator * vagg) { GstD3D11CompositorPad *cpad = GST_D3D11_COMPOSITOR_PAD (pad); GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (vagg); gint width, height; GstVideoInfo *info = &vagg->info; GstVideoRectangle frame_rect; gboolean is_first = FALSE; gboolean output_has_alpha_comp = FALSE; gint x_offset, y_offset; #ifndef GST_DISABLE_GST_DEBUG guint zorder = 0; #endif static const D3D11_RENDER_TARGET_BLEND_DESC blend_over_no_alpha = { TRUE, D3D11_BLEND_BLEND_FACTOR, D3D11_BLEND_INV_BLEND_FACTOR, D3D11_BLEND_OP_ADD, D3D11_BLEND_BLEND_FACTOR, D3D11_BLEND_INV_BLEND_FACTOR, D3D11_BLEND_OP_ADD, D3D11_COLOR_WRITE_ENABLE_ALL, }; if (GST_VIDEO_INFO_HAS_ALPHA (info) || GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_BGRx || GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_RGBx) { output_has_alpha_comp = TRUE; } if (cpad->config_updated) { gst_clear_object (&cpad->convert); cpad->config_updated = FALSE; } if (!cpad->convert) { GstStructure *config = gst_structure_new ("converter-config", /* XXX: Always use shader, to workaround buggy blending behavior of * vendor implemented converter. Need investigation */ GST_D3D11_CONVERTER_OPT_BACKEND, GST_TYPE_D3D11_CONVERTER_BACKEND, GST_D3D11_CONVERTER_BACKEND_SHADER, GST_D3D11_CONVERTER_OPT_GAMMA_MODE, GST_TYPE_VIDEO_GAMMA_MODE, cpad->gamma_mode, GST_D3D11_CONVERTER_OPT_PRIMARIES_MODE, GST_TYPE_VIDEO_PRIMARIES_MODE, cpad->primaries_mode, nullptr); cpad->convert = gst_d3d11_converter_new (self->device, &pad->info, info, config); if (!cpad->convert) { GST_ERROR_OBJECT (pad, "Couldn't create converter"); return FALSE; } is_first = TRUE; } if (cpad->alpha_updated || is_first) { if (output_has_alpha_comp) { g_object_set (cpad->convert, "alpha", cpad->alpha, nullptr); } else { gfloat blend_factor = cpad->alpha; g_object_set (cpad->convert, "blend-factor-red", blend_factor, "blend-factor-green", blend_factor, "blend-factor-blue", blend_factor, "blend-factor-alpha", blend_factor, nullptr); } cpad->alpha_updated = FALSE; } if (!cpad->blend || cpad->blend_desc_updated || is_first) { HRESULT hr; D3D11_BLEND_DESC desc = { 0, }; ID3D11BlendState *blend = nullptr; ID3D11Device *device_handle = gst_d3d11_device_get_device_handle (self->device); gfloat blend_factor = 1.0f; GST_D3D11_CLEAR_COM (cpad->blend); desc.AlphaToCoverageEnable = FALSE; desc.IndependentBlendEnable = FALSE; desc.RenderTarget[0] = cpad->desc; if (!output_has_alpha_comp && cpad->op == GST_D3D11_COMPOSITOR_OPERATOR_OVER) { desc.RenderTarget[0] = blend_over_no_alpha; blend_factor = cpad->alpha; } hr = device_handle->CreateBlendState (&desc, &blend); if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (pad, "Couldn't create blend staten, hr: 0x%x", (guint) hr); return FALSE; } cpad->blend = blend; g_object_set (cpad->convert, "blend-state", blend, "blend-factor-red", blend_factor, "blend-factor-green", blend_factor, "blend-factor-blue", blend_factor, "blend-factor-alpha", blend_factor, nullptr); cpad->blend_desc_updated = FALSE; } if (!is_first && !cpad->position_updated) return TRUE; gst_d3d11_compositor_pad_get_output_size (cpad, GST_VIDEO_INFO_PAR_N (info), GST_VIDEO_INFO_PAR_D (info), &width, &height, &x_offset, &y_offset); frame_rect = clamp_rectangle (cpad->xpos + x_offset, cpad->ypos + y_offset, width, height, GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info)); #ifndef GST_DISABLE_GST_DEBUG g_object_get (pad, "zorder", &zorder, nullptr); GST_LOG_OBJECT (pad, "Update position, pad-xpos %d, pad-ypos %d, " "pad-zorder %d, pad-width %d, pad-height %d, in-resolution %dx%d, " "out-resoution %dx%d, dst-{x,y,width,height} %d-%d-%d-%d", cpad->xpos, cpad->ypos, zorder, cpad->width, cpad->height, GST_VIDEO_INFO_WIDTH (&pad->info), GST_VIDEO_INFO_HEIGHT (&pad->info), GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), frame_rect.x, frame_rect.y, frame_rect.w, frame_rect.h); #endif cpad->position_updated = FALSE; g_object_set (cpad->convert, "dest-x", frame_rect.x, "dest-y", frame_rect.y, "dest-width", frame_rect.w, "dest-height", frame_rect.h, nullptr); return TRUE; } static GstStaticCaps sink_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 (GST_D3D11_SINK_FORMATS)); /* formats we can output without conversion. * Excludes 10/12 bits planar YUV (needs bitshift) and * AYUV/AYUV64 (d3d11 runtime does not understand the ayuv order) */ #define COMPOSITOR_SRC_FORMATS \ "{ RGBA64_LE, RGB10A2_LE, BGRA, RGBA, BGRx, RGBx, VUYA, NV12, NV21, " \ "P010_10LE, P012_LE, P016_LE, I420, YV12, Y42B, Y444, Y444_16LE, " \ "GRAY8, GRAY16_LE }" static GstStaticCaps src_pad_template_caps = GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, COMPOSITOR_SRC_FORMATS) "; " GST_VIDEO_CAPS_MAKE (COMPOSITOR_SRC_FORMATS)); enum { PROP_0, PROP_ADAPTER, PROP_BACKGROUND, PROP_IGNORE_INACTIVE_PADS, }; #define DEFAULT_ADAPTER -1 #define DEFAULT_BACKGROUND GST_D3D11_COMPOSITOR_BACKGROUND_CHECKER static void gst_d3d11_compositor_child_proxy_init (gpointer g_iface, gpointer iface_data); static void gst_d3d11_compositor_dispose (GObject * object); static void gst_d3d11_compositor_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_d3d11_compositor_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstPad *gst_d3d11_compositor_request_new_pad (GstElement * element, GstPadTemplate * templ, const gchar * name, const GstCaps * caps); static void gst_d3d11_compositor_release_pad (GstElement * element, GstPad * pad); static void gst_d3d11_compositor_set_context (GstElement * element, GstContext * context); static gboolean gst_d3d11_compositor_start (GstAggregator * agg); static gboolean gst_d3d11_compositor_stop (GstAggregator * agg); static gboolean gst_d3d11_compositor_sink_query (GstAggregator * agg, GstAggregatorPad * pad, GstQuery * query); static gboolean gst_d3d11_compositor_src_query (GstAggregator * agg, GstQuery * query); static GstCaps *gst_d3d11_compositor_fixate_src_caps (GstAggregator * agg, GstCaps * caps); static gboolean gst_d3d11_compositor_negotiated_src_caps (GstAggregator * agg, GstCaps * caps); static gboolean gst_d3d11_compositor_propose_allocation (GstAggregator * agg, GstAggregatorPad * pad, GstQuery * decide_query, GstQuery * query); static gboolean gst_d3d11_compositor_decide_allocation (GstAggregator * agg, GstQuery * query); static GstFlowReturn gst_d3d11_compositor_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf); static GstFlowReturn gst_d3d11_compositor_create_output_buffer (GstVideoAggregator * vagg, GstBuffer ** outbuffer); static void gst_d3d11_compositor_quad_free (GstD3D11CompositorQuad * quad); #define gst_d3d11_compositor_parent_class parent_class G_DEFINE_TYPE_WITH_CODE (GstD3D11Compositor, gst_d3d11_compositor, GST_TYPE_VIDEO_AGGREGATOR, G_IMPLEMENT_INTERFACE (GST_TYPE_CHILD_PROXY, gst_d3d11_compositor_child_proxy_init)); static void gst_d3d11_compositor_class_init (GstD3D11CompositorClass * klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstAggregatorClass *agg_class = GST_AGGREGATOR_CLASS (klass); GstVideoAggregatorClass *vagg_class = GST_VIDEO_AGGREGATOR_CLASS (klass); GstCaps *caps; object_class->dispose = gst_d3d11_compositor_dispose; object_class->set_property = gst_d3d11_compositor_set_property; object_class->get_property = gst_d3d11_compositor_get_property; g_object_class_install_property (object_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 (object_class, PROP_BACKGROUND, g_param_spec_enum ("background", "Background", "Background type", GST_TYPE_D3D11_COMPOSITOR_BACKGROUND, DEFAULT_BACKGROUND, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); /** * GstD3D11Compositor:ignore-inactive-pads: * * Don't wait for inactive pads when live. An inactive pad * is a pad that hasn't yet received a buffer, but that has * been waited on at least once. * * The purpose of this property is to avoid aggregating on * timeout when new pads are requested in advance of receiving * data flow, for example the user may decide to connect it later, * but wants to configure it already. * * Since: 1.24 */ g_object_class_install_property (object_class, PROP_IGNORE_INACTIVE_PADS, g_param_spec_boolean ("ignore-inactive-pads", "Ignore inactive pads", "Avoid timing out waiting for inactive pads", FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); element_class->request_new_pad = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_request_new_pad); element_class->release_pad = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_release_pad); element_class->set_context = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_set_context); agg_class->start = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_start); agg_class->stop = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_stop); agg_class->sink_query = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_sink_query); agg_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_src_query); agg_class->fixate_src_caps = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_fixate_src_caps); agg_class->negotiated_src_caps = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_negotiated_src_caps); agg_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_propose_allocation); agg_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_decide_allocation); vagg_class->aggregate_frames = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_aggregate_frames); vagg_class->create_output_buffer = GST_DEBUG_FUNCPTR (gst_d3d11_compositor_create_output_buffer); caps = gst_d3d11_get_updated_template_caps (&sink_pad_template_caps); gst_element_class_add_pad_template (element_class, gst_pad_template_new_with_gtype ("sink_%u", GST_PAD_SINK, GST_PAD_REQUEST, caps, GST_TYPE_D3D11_COMPOSITOR_PAD)); gst_caps_unref (caps); caps = gst_d3d11_get_updated_template_caps (&src_pad_template_caps); gst_element_class_add_pad_template (element_class, gst_pad_template_new_with_gtype ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps, GST_TYPE_AGGREGATOR_PAD)); gst_caps_unref (caps); gst_element_class_set_static_metadata (element_class, "Direct3D11 Compositor", "Filter/Editor/Video/Compositor", "A Direct3D11 compositor", "Seungha Yang "); gst_type_mark_as_plugin_api (GST_TYPE_D3D11_COMPOSITOR_BACKGROUND, (GstPluginAPIFlags) 0); gst_type_mark_as_plugin_api (GST_TYPE_D3D11_COMPOSITOR_PAD, (GstPluginAPIFlags) 0); GST_DEBUG_CATEGORY_INIT (gst_d3d11_compositor_debug, "d3d11compositor", 0, "d3d11compositor element"); } static void gst_d3d11_compositor_init (GstD3D11Compositor * self) { self->adapter = DEFAULT_ADAPTER; self->background = DEFAULT_BACKGROUND; } static void gst_d3d11_compositor_dispose (GObject * object) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (object); gst_clear_object (&self->device); gst_clear_buffer (&self->fallback_buf); g_clear_pointer (&self->checker_background, gst_d3d11_compositor_quad_free); G_OBJECT_CLASS (parent_class)->dispose (object); } static void gst_d3d11_compositor_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (object); switch (prop_id) { case PROP_ADAPTER: self->adapter = g_value_get_int (value); break; case PROP_BACKGROUND: self->background = (GstD3D11CompositorBackground) g_value_get_enum (value); break; case PROP_IGNORE_INACTIVE_PADS: gst_aggregator_set_ignore_inactive_pads (GST_AGGREGATOR (object), g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_d3d11_compositor_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (object); switch (prop_id) { case PROP_ADAPTER: g_value_set_int (value, self->adapter); break; case PROP_BACKGROUND: g_value_set_enum (value, self->background); break; case PROP_IGNORE_INACTIVE_PADS: g_value_set_boolean (value, gst_aggregator_get_ignore_inactive_pads (GST_AGGREGATOR (object))); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static GObject * gst_d3d11_compositor_child_proxy_get_child_by_index (GstChildProxy * proxy, guint index) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (proxy); GObject *obj = nullptr; GST_OBJECT_LOCK (self); obj = (GObject *) g_list_nth_data (GST_ELEMENT_CAST (self)->sinkpads, index); if (obj) gst_object_ref (obj); GST_OBJECT_UNLOCK (self); return obj; } static guint gst_d3d11_compositor_child_proxy_get_children_count (GstChildProxy * proxy) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (proxy); guint count = 0; GST_OBJECT_LOCK (self); count = GST_ELEMENT_CAST (self)->numsinkpads; GST_OBJECT_UNLOCK (self); GST_INFO_OBJECT (self, "Children Count: %d", count); return count; } static void gst_d3d11_compositor_child_proxy_init (gpointer g_iface, gpointer iface_data) { GstChildProxyInterface *iface = (GstChildProxyInterface *) g_iface; iface->get_child_by_index = gst_d3d11_compositor_child_proxy_get_child_by_index; iface->get_children_count = gst_d3d11_compositor_child_proxy_get_children_count; } static GstPad * gst_d3d11_compositor_request_new_pad (GstElement * element, GstPadTemplate * templ, const gchar * name, const GstCaps * caps) { GstPad *pad; pad = GST_ELEMENT_CLASS (parent_class)->request_new_pad (element, templ, name, caps); if (!pad) { GST_DEBUG_OBJECT (element, "could not create/add pad"); return nullptr; } gst_child_proxy_child_added (GST_CHILD_PROXY (element), G_OBJECT (pad), GST_OBJECT_NAME (pad)); GST_DEBUG_OBJECT (element, "Created new pad %s:%s", GST_DEBUG_PAD_NAME (pad)); return pad; } static gboolean gst_d3d11_compositor_pad_clear_resource (GstD3D11Compositor * self, GstD3D11CompositorPad * cpad, gpointer user_data) { gst_clear_object (&cpad->convert); GST_D3D11_CLEAR_COM (cpad->blend); return TRUE; } static void gst_d3d11_compositor_release_pad (GstElement * element, GstPad * pad) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (element); GST_DEBUG_OBJECT (self, "Releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad)); gst_child_proxy_child_removed (GST_CHILD_PROXY (self), G_OBJECT (pad), GST_OBJECT_NAME (pad)); GST_ELEMENT_CLASS (parent_class)->release_pad (element, pad); } static void gst_d3d11_compositor_set_context (GstElement * element, GstContext * context) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (element); gst_d3d11_handle_set_context (element, context, self->adapter, &self->device); GST_ELEMENT_CLASS (parent_class)->set_context (element, context); } static gboolean gst_d3d11_compositor_start (GstAggregator * agg) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), self->adapter, &self->device)) { GST_ERROR_OBJECT (self, "Failed to get D3D11 device"); return FALSE; } return GST_AGGREGATOR_CLASS (parent_class)->start (agg); } static gboolean gst_d3d11_compositor_stop (GstAggregator * agg) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); g_clear_pointer (&self->checker_background, gst_d3d11_compositor_quad_free); gst_clear_object (&self->device); gst_clear_caps (&self->negotiated_caps); return GST_AGGREGATOR_CLASS (parent_class)->stop (agg); } static GstCaps * gst_d3d11_compositor_sink_getcaps (GstPad * pad, GstCaps * filter) { GstCaps *sinkcaps; GstCaps *template_caps; GstCaps *filtered_caps; GstCaps *returned_caps; template_caps = gst_pad_get_pad_template_caps (pad); sinkcaps = gst_pad_get_current_caps (pad); if (sinkcaps == nullptr) { sinkcaps = gst_caps_ref (template_caps); } else { sinkcaps = gst_caps_merge (sinkcaps, gst_caps_ref (template_caps)); } if (filter) { filtered_caps = gst_caps_intersect (sinkcaps, filter); gst_caps_unref (sinkcaps); } else { filtered_caps = sinkcaps; /* pass ownership */ } returned_caps = gst_caps_intersect (filtered_caps, template_caps); gst_caps_unref (template_caps); gst_caps_unref (filtered_caps); GST_DEBUG_OBJECT (pad, "returning %" GST_PTR_FORMAT, returned_caps); return returned_caps; } static gboolean gst_d3d11_compositor_sink_acceptcaps (GstPad * pad, GstCaps * caps) { gboolean ret; GstCaps *template_caps; GST_DEBUG_OBJECT (pad, "try accept caps of %" GST_PTR_FORMAT, caps); template_caps = gst_pad_get_pad_template_caps (pad); template_caps = gst_caps_make_writable (template_caps); ret = gst_caps_can_intersect (caps, template_caps); GST_DEBUG_OBJECT (pad, "%saccepted caps %" GST_PTR_FORMAT, (ret ? "" : "not "), caps); gst_caps_unref (template_caps); return ret; } static gboolean gst_d3d11_compositor_sink_query (GstAggregator * agg, GstAggregatorPad * pad, GstQuery * query) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONTEXT: if (gst_d3d11_handle_context_query (GST_ELEMENT (agg), query, self->device)) { return TRUE; } break; case GST_QUERY_CAPS:{ GstCaps *filter, *caps; gst_query_parse_caps (query, &filter); caps = gst_d3d11_compositor_sink_getcaps (GST_PAD (pad), filter); gst_query_set_caps_result (query, caps); gst_caps_unref (caps); return TRUE; } case GST_QUERY_ACCEPT_CAPS:{ GstCaps *caps; gboolean ret; gst_query_parse_accept_caps (query, &caps); ret = gst_d3d11_compositor_sink_acceptcaps (GST_PAD (pad), caps); gst_query_set_accept_caps_result (query, ret); return TRUE; } default: break; } return GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, pad, query); } static gboolean gst_d3d11_compositor_src_query (GstAggregator * agg, GstQuery * query) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONTEXT: if (gst_d3d11_handle_context_query (GST_ELEMENT (agg), query, self->device)) { return TRUE; } break; default: break; } return GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query); } static GstCaps * gst_d3d11_compositor_fixate_src_caps (GstAggregator * agg, GstCaps * caps) { GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (agg); GList *l; gint best_width = -1, best_height = -1; gint best_fps_n = -1, best_fps_d = -1; gint par_n, par_d; gdouble best_fps = 0.; GstCaps *ret = nullptr; GstStructure *s; ret = gst_caps_make_writable (caps); /* we need this to calculate how large to make the output frame */ s = gst_caps_get_structure (ret, 0); if (gst_structure_has_field (s, "pixel-aspect-ratio")) { gst_structure_fixate_field_nearest_fraction (s, "pixel-aspect-ratio", 1, 1); gst_structure_get_fraction (s, "pixel-aspect-ratio", &par_n, &par_d); } else { par_n = par_d = 1; } GST_OBJECT_LOCK (vagg); for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) { GstVideoAggregatorPad *vaggpad = GST_VIDEO_AGGREGATOR_PAD (l->data); GstD3D11CompositorPad *cpad = GST_D3D11_COMPOSITOR_PAD (vaggpad); gint this_width, this_height; gint width, height; gint fps_n, fps_d; gdouble cur_fps; gint x_offset; gint y_offset; fps_n = GST_VIDEO_INFO_FPS_N (&vaggpad->info); fps_d = GST_VIDEO_INFO_FPS_D (&vaggpad->info); gst_d3d11_compositor_pad_get_output_size (cpad, par_n, par_d, &width, &height, &x_offset, &y_offset); if (width == 0 || height == 0) continue; /* {x,y}_offset represent padding size of each top and left area. * To calculate total resolution, count bottom and right padding area * as well here */ this_width = width + MAX (cpad->xpos + 2 * x_offset, 0); this_height = height + MAX (cpad->ypos + 2 * y_offset, 0); if (best_width < this_width) best_width = this_width; if (best_height < this_height) best_height = this_height; if (fps_d == 0) cur_fps = 0.0; else gst_util_fraction_to_double (fps_n, fps_d, &cur_fps); if (best_fps < cur_fps) { best_fps = cur_fps; best_fps_n = fps_n; best_fps_d = fps_d; } } GST_OBJECT_UNLOCK (vagg); if (best_fps_n <= 0 || best_fps_d <= 0 || best_fps == 0.0) { best_fps_n = 25; best_fps_d = 1; best_fps = 25.0; } gst_structure_fixate_field_nearest_int (s, "width", best_width); gst_structure_fixate_field_nearest_int (s, "height", best_height); gst_structure_fixate_field_nearest_fraction (s, "framerate", best_fps_n, best_fps_d); ret = gst_caps_fixate (ret); GST_LOG_OBJECT (agg, "Fixated caps %" GST_PTR_FORMAT, ret); return ret; } static void convert_info_gray_to_yuv (const GstVideoInfo * gray, GstVideoInfo * yuv) { GstVideoInfo tmp; if (GST_VIDEO_INFO_IS_YUV (gray)) { *yuv = *gray; return; } if (gray->finfo->depth[0] == 8) { gst_video_info_set_format (&tmp, GST_VIDEO_FORMAT_Y444, gray->width, gray->height); } else { gst_video_info_set_format (&tmp, GST_VIDEO_FORMAT_Y444_16LE, gray->width, gray->height); } tmp.colorimetry.range = gray->colorimetry.range; if (tmp.colorimetry.range == GST_VIDEO_COLOR_RANGE_UNKNOWN) tmp.colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255; tmp.colorimetry.primaries = gray->colorimetry.primaries; if (tmp.colorimetry.primaries == GST_VIDEO_COLOR_PRIMARIES_UNKNOWN) tmp.colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT709; tmp.colorimetry.transfer = gray->colorimetry.transfer; if (tmp.colorimetry.transfer == GST_VIDEO_TRANSFER_UNKNOWN) tmp.colorimetry.transfer = GST_VIDEO_TRANSFER_BT709; tmp.colorimetry.matrix = gray->colorimetry.matrix; if (tmp.colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN) tmp.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT709; *yuv = tmp; } static void gst_d3d11_compositor_calculate_background_color (GstD3D11Compositor * self, const GstVideoInfo * info) { GstD3D11ColorMatrix clear_color_matrix; gdouble rgb[3]; gdouble converted[3]; GstVideoFormat format = GST_VIDEO_INFO_FORMAT (info); if (GST_VIDEO_INFO_IS_RGB (info)) { GstVideoInfo rgb_info = *info; rgb_info.colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255; gst_d3d11_color_range_adjust_matrix_unorm (&rgb_info, info, &clear_color_matrix); } else { GstVideoInfo rgb_info; GstVideoInfo yuv_info; gst_video_info_set_format (&rgb_info, GST_VIDEO_FORMAT_RGBA64_LE, info->width, info->height); convert_info_gray_to_yuv (info, &yuv_info); if (yuv_info.colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN || yuv_info.colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_RGB) { GST_WARNING_OBJECT (self, "Invalid matrix is detected"); yuv_info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT709; } gst_d3d11_rgb_to_yuv_matrix_unorm (&rgb_info, &yuv_info, &clear_color_matrix); } /* Calculate black and white color values */ for (guint i = 0; i < 2; i++) { GstD3D11CompositorClearColor *clear_color = &self->clear_color[i]; rgb[0] = rgb[1] = rgb[2] = (gdouble) i; for (guint j = 0; j < 3; j++) { converted[j] = 0; for (guint k = 0; k < 3; k++) { converted[j] += clear_color_matrix.matrix[j][k] * rgb[k]; } converted[j] += clear_color_matrix.offset[j]; converted[j] = CLAMP (converted[j], clear_color_matrix.min[j], clear_color_matrix.max[j]); } GST_DEBUG_OBJECT (self, "Calculated background color RGB: %f, %f, %f", converted[0], converted[1], converted[2]); if (GST_VIDEO_INFO_IS_RGB (info) || GST_VIDEO_INFO_IS_GRAY (info)) { for (guint j = 0; j < 3; j++) clear_color->color[0][j] = converted[j]; clear_color->color[0][3] = 1.0; } else { switch (format) { case GST_VIDEO_FORMAT_VUYA: clear_color->color[0][0] = converted[2]; clear_color->color[0][1] = converted[1]; clear_color->color[0][2] = converted[0]; clear_color->color[0][3] = 1.0; break; case GST_VIDEO_FORMAT_NV12: case GST_VIDEO_FORMAT_NV21: case GST_VIDEO_FORMAT_P010_10LE: case GST_VIDEO_FORMAT_P012_LE: case GST_VIDEO_FORMAT_P016_LE: clear_color->color[0][0] = converted[0]; clear_color->color[0][1] = 0; clear_color->color[0][2] = 0; clear_color->color[0][3] = 1.0; if (format == GST_VIDEO_FORMAT_NV21) { clear_color->color[1][0] = converted[2]; clear_color->color[1][1] = converted[1]; } else { clear_color->color[1][0] = converted[1]; clear_color->color[1][1] = converted[2]; } clear_color->color[1][2] = 0; clear_color->color[1][3] = 1.0; break; case GST_VIDEO_FORMAT_I420: case GST_VIDEO_FORMAT_YV12: case GST_VIDEO_FORMAT_I420_10LE: case GST_VIDEO_FORMAT_I420_12LE: case GST_VIDEO_FORMAT_Y42B: case GST_VIDEO_FORMAT_I422_10LE: case GST_VIDEO_FORMAT_I422_12LE: case GST_VIDEO_FORMAT_Y444: case GST_VIDEO_FORMAT_Y444_10LE: case GST_VIDEO_FORMAT_Y444_12LE: case GST_VIDEO_FORMAT_Y444_16LE: clear_color->color[0][0] = converted[0]; clear_color->color[0][1] = 0; clear_color->color[0][2] = 0; clear_color->color[0][3] = 1.0; if (format == GST_VIDEO_FORMAT_YV12) { clear_color->color[1][0] = converted[2]; clear_color->color[2][0] = converted[1]; } else { clear_color->color[1][0] = converted[1]; clear_color->color[2][0] = converted[2]; } clear_color->color[1][1] = 0; clear_color->color[1][2] = 0; clear_color->color[1][3] = 1.0; clear_color->color[2][1] = 0; clear_color->color[2][2] = 0; clear_color->color[2][3] = 1.0; break; default: g_assert_not_reached (); break; } } } self->clear_color[2] = self->clear_color[0]; self->clear_color[2].color[0][3] = 0.0; } static gboolean gst_d3d11_compositor_negotiated_src_caps (GstAggregator * agg, GstCaps * caps) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); GstCapsFeatures *features; GstVideoInfo info; if (!gst_video_info_from_caps (&info, caps)) { GST_ERROR_OBJECT (self, "Failed to convert caps to info"); return FALSE; } if (self->negotiated_caps && gst_caps_is_equal (self->negotiated_caps, caps)) { GST_DEBUG_OBJECT (self, "Negotiated caps is not changed"); goto done; } features = gst_caps_get_features (caps, 0); if (features && gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) { GST_DEBUG_OBJECT (self, "Negotiated with D3D11 memory caps"); self->downstream_supports_d3d11 = TRUE; } else { GST_DEBUG_OBJECT (self, "Negotiated with system memory caps"); self->downstream_supports_d3d11 = FALSE; } gst_element_foreach_sink_pad (GST_ELEMENT_CAST (self), (GstElementForeachPadFunc) gst_d3d11_compositor_pad_clear_resource, nullptr); gst_clear_buffer (&self->fallback_buf); g_clear_pointer (&self->checker_background, gst_d3d11_compositor_quad_free); gst_d3d11_compositor_calculate_background_color (self, &info); if (!self->downstream_supports_d3d11) { GstD3D11AllocationParams *d3d11_params; GstBufferPool *pool; GstFlowReturn flow_ret; d3d11_params = gst_d3d11_allocation_params_new (self->device, &info, GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET, 0); pool = gst_d3d11_buffer_pool_new_with_options (self->device, caps, d3d11_params, 0, 0); gst_d3d11_allocation_params_free (d3d11_params); if (!pool) { GST_ERROR_OBJECT (self, "Failed to create pool"); return FALSE; } if (!gst_buffer_pool_set_active (pool, TRUE)) { GST_ERROR_OBJECT (self, "Failed to set active"); gst_object_unref (pool); return FALSE; } flow_ret = gst_buffer_pool_acquire_buffer (pool, &self->fallback_buf, nullptr); if (flow_ret != GST_FLOW_OK) { GST_ERROR_OBJECT (self, "Failed to acquire buffer"); gst_object_unref (pool); return FALSE; } gst_buffer_pool_set_active (pool, FALSE); gst_object_unref (pool); } gst_caps_replace (&self->negotiated_caps, caps); done: return GST_AGGREGATOR_CLASS (parent_class)->negotiated_src_caps (agg, caps); } static gboolean gst_d3d11_compositor_propose_allocation (GstAggregator * agg, GstAggregatorPad * pad, GstQuery * decide_query, GstQuery * query) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); GstVideoInfo info; GstBufferPool *pool; GstCaps *caps; guint size; gst_query_parse_allocation (query, &caps, nullptr); if (caps == nullptr) return FALSE; if (!gst_video_info_from_caps (&info, caps)) return FALSE; if (gst_query_get_n_allocation_pools (query) == 0) { 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 (pad, "upstream support d3d11 memory"); pool = gst_d3d11_buffer_pool_new (self->device); is_d3d11 = TRUE; } else { pool = gst_video_buffer_pool_new (); } if (!pool) { GST_ERROR_OBJECT (self, "Failed to create buffer pool"); return FALSE; } config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); 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); } else { gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT); } gst_buffer_pool_config_set_params (config, caps, (guint) size, 0, 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); gst_query_add_allocation_pool (query, pool, size, 0, 0); gst_object_unref (pool); } gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, nullptr); gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, nullptr); return TRUE; } static gboolean gst_d3d11_compositor_decide_allocation (GstAggregator * agg, GstQuery * query) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); GstCaps *caps; GstBufferPool *pool = nullptr; guint n, size, min, max; GstVideoInfo info; GstStructure *config; gboolean use_d3d11_pool; gst_query_parse_allocation (query, &caps, nullptr); if (!caps) { GST_DEBUG_OBJECT (self, "No output caps"); return FALSE; } if (!gst_video_info_from_caps (&info, caps)) { GST_ERROR_OBJECT (self, "Invalid caps"); return FALSE; } use_d3d11_pool = self->downstream_supports_d3d11; n = gst_query_get_n_allocation_pools (query); if (n > 0) gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); /* create our own pool */ if (pool && use_d3d11_pool) { if (!GST_IS_D3D11_BUFFER_POOL (pool)) { GST_DEBUG_OBJECT (self, "Downstream pool is not d3d11, will create new one"); gst_clear_object (&pool); } else { GstD3D11BufferPool *dpool = GST_D3D11_BUFFER_POOL (pool); if (dpool->device != self->device) { GST_DEBUG_OBJECT (self, "Different device, will create new one"); gst_clear_object (&pool); } } } size = (guint) info.size; if (!pool) { if (use_d3d11_pool) pool = gst_d3d11_buffer_pool_new (self->device); else pool = gst_video_buffer_pool_new (); min = 0; max = 0; } config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_set_params (config, caps, size, min, max); gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); if (use_d3d11_pool) { GstD3D11AllocationParams *d3d11_params; d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config); if (!d3d11_params) { d3d11_params = gst_d3d11_allocation_params_new (self->device, &info, GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET, 0); } else { gst_d3d11_allocation_params_set_bind_flags (d3d11_params, D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET); } gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params); gst_d3d11_allocation_params_free (d3d11_params); } gst_buffer_pool_set_config (pool, config); /* 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 (n > 0) gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max); else gst_query_add_allocation_pool (query, pool, size, min, max); gst_object_unref (pool); return TRUE; } typedef struct { struct { FLOAT x; FLOAT y; FLOAT z; } position; struct { FLOAT u; FLOAT v; } texture; } VertexData; static GstD3D11CompositorQuad * gst_d3d11_compositor_create_checker_quad (GstD3D11Compositor * self, const GstVideoInfo * info) { GstD3D11CompositorQuad *quad = nullptr; VertexData vertex_data[4]; const WORD indices[6] = { 0, 1, 2, 3, 0, 2 }; ID3D11Device *device_handle; D3D11_BUFFER_DESC buffer_desc; D3D11_SUBRESOURCE_DATA subresource; ComPtr < ID3D11Buffer > vertex_buffer; ComPtr < ID3D11Buffer > index_buffer; ComPtr < ID3D11PixelShader > ps; ComPtr < ID3D11VertexShader > vs; ComPtr < ID3D11InputLayout > layout; ComPtr < ID3D11RasterizerState > rs; HRESULT hr; device_handle = gst_d3d11_device_get_device_handle (self->device); if (GST_VIDEO_INFO_IS_RGB (info)) { hr = gst_d3d11_get_pixel_shader_checker_rgb (self->device, &ps); } else if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_VUYA) { hr = gst_d3d11_get_pixel_shader_checker_vuya (self->device, &ps); } else { hr = gst_d3d11_get_pixel_shader_checker_luma (self->device, &ps); } if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (self, "Couldn't setup pixel shader"); return nullptr; } hr = gst_d3d11_get_vertex_shader_pos (self->device, &vs, &layout); if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (self, "Couldn't setup vertex shader"); return nullptr; } hr = gst_d3d11_device_get_rasterizer (self->device, &rs); if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (self, "Couldn't setup rasterizer state"); return nullptr; } /* bottom left */ vertex_data[0].position.x = -1.0f; vertex_data[0].position.y = -1.0f; vertex_data[0].position.z = 0.0f; vertex_data[0].texture.u = 0.0f; vertex_data[0].texture.v = 1.0f; /* top left */ vertex_data[1].position.x = -1.0f; vertex_data[1].position.y = 1.0f; vertex_data[1].position.z = 0.0f; vertex_data[1].texture.u = 0.0f; vertex_data[1].texture.v = 0.0f; /* top right */ vertex_data[2].position.x = 1.0f; vertex_data[2].position.y = 1.0f; vertex_data[2].position.z = 0.0f; vertex_data[2].texture.u = 1.0f; vertex_data[2].texture.v = 0.0f; /* bottom right */ vertex_data[3].position.x = 1.0f; vertex_data[3].position.y = -1.0f; vertex_data[3].position.z = 0.0f; vertex_data[3].texture.u = 1.0f; vertex_data[3].texture.v = 1.0f; memset (&subresource, 0, sizeof (D3D11_SUBRESOURCE_DATA)); memset (&buffer_desc, 0, sizeof (D3D11_BUFFER_DESC)); buffer_desc.Usage = D3D11_USAGE_DYNAMIC; buffer_desc.ByteWidth = sizeof (VertexData) * 4; buffer_desc.BindFlags = D3D11_BIND_VERTEX_BUFFER; buffer_desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; subresource.pSysMem = vertex_data; subresource.SysMemPitch = sizeof (VertexData) * 4; hr = device_handle->CreateBuffer (&buffer_desc, &subresource, &vertex_buffer); if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (self, "Couldn't create vertex buffer, hr: 0x%x", (guint) hr); return nullptr; } buffer_desc.Usage = D3D11_USAGE_DYNAMIC; buffer_desc.ByteWidth = sizeof (WORD) * 6; buffer_desc.BindFlags = D3D11_BIND_INDEX_BUFFER; buffer_desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; subresource.pSysMem = indices; subresource.SysMemPitch = sizeof (WORD) * 6; hr = device_handle->CreateBuffer (&buffer_desc, &subresource, &index_buffer); if (!gst_d3d11_result (hr, self->device)) { GST_ERROR_OBJECT (self, "Couldn't create index buffer, hr: 0x%x", (guint) hr); return nullptr; } quad = g_new0 (GstD3D11CompositorQuad, 1); quad->ps = ps.Detach (); quad->vs = vs.Detach (); quad->rs = rs.Detach (); quad->layout = layout.Detach (); quad->vertex_buffer = vertex_buffer.Detach (); quad->index_buffer = index_buffer.Detach (); quad->viewport.TopLeftX = 0; quad->viewport.TopLeftY = 0; quad->viewport.Width = GST_VIDEO_INFO_WIDTH (info); quad->viewport.Height = GST_VIDEO_INFO_HEIGHT (info); quad->viewport.MinDepth = 0.0f; quad->viewport.MaxDepth = 1.0f; return quad; } static void gst_d3d11_compositor_quad_free (GstD3D11CompositorQuad * quad) { if (!quad) return; GST_D3D11_CLEAR_COM (quad->ps); GST_D3D11_CLEAR_COM (quad->vs); GST_D3D11_CLEAR_COM (quad->layout); GST_D3D11_CLEAR_COM (quad->rs); GST_D3D11_CLEAR_COM (quad->vertex_buffer); GST_D3D11_CLEAR_COM (quad->index_buffer); g_free (quad); } static gboolean gst_d3d11_compositor_draw_background_checker (GstD3D11Compositor * self, ID3D11RenderTargetView * rtv) { ID3D11DeviceContext *context = gst_d3d11_device_get_device_context_handle (self->device); UINT offsets = 0; UINT strides = sizeof (VertexData); GstD3D11CompositorQuad *quad; if (!self->checker_background) { GstVideoInfo *info = &GST_VIDEO_AGGREGATOR_CAST (self)->info; self->checker_background = gst_d3d11_compositor_create_checker_quad (self, info); if (!self->checker_background) return FALSE; } quad = self->checker_background; context->IASetPrimitiveTopology (D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST); context->IASetInputLayout (quad->layout); context->IASetVertexBuffers (0, 1, &quad->vertex_buffer, &strides, &offsets); context->IASetIndexBuffer (quad->index_buffer, DXGI_FORMAT_R16_UINT, 0); context->VSSetShader (quad->vs, nullptr, 0); context->PSSetShader (quad->ps, nullptr, 0); context->RSSetViewports (1, &quad->viewport); context->RSSetState (quad->rs); context->OMSetRenderTargets (1, &rtv, nullptr); context->OMSetBlendState (nullptr, nullptr, 0xffffffff); context->DrawIndexed (6, 0, 0); context->OMSetRenderTargets (0, nullptr, nullptr); return TRUE; } /* Must be called with d3d11 device lock */ static gboolean gst_d3d11_compositor_draw_background (GstD3D11Compositor * self, ID3D11RenderTargetView * rtv[GST_VIDEO_MAX_PLANES], guint num_rtv) { ID3D11DeviceContext *context = gst_d3d11_device_get_device_context_handle (self->device); GstD3D11CompositorClearColor *color = &self->clear_color[0]; if (self->background == GST_D3D11_COMPOSITOR_BACKGROUND_CHECKER) { if (!gst_d3d11_compositor_draw_background_checker (self, rtv[0])) return FALSE; /* clear U and V components if needed */ for (guint i = 1; i < num_rtv; i++) context->ClearRenderTargetView (rtv[i], color->color[i]); return TRUE; } switch (self->background) { case GST_D3D11_COMPOSITOR_BACKGROUND_BLACK: color = &self->clear_color[0]; break; case GST_D3D11_COMPOSITOR_BACKGROUND_WHITE: color = &self->clear_color[1]; break; case GST_D3D11_COMPOSITOR_BACKGROUND_TRANSPARENT: color = &self->clear_color[2]; break; default: g_assert_not_reached (); return FALSE; } for (guint i = 0; i < num_rtv; i++) context->ClearRenderTargetView (rtv[i], color->color[i]); return TRUE; } static GstFlowReturn gst_d3d11_compositor_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (vagg); GList *iter; GstBuffer *target_buf = outbuf; GstFlowReturn ret = GST_FLOW_OK; ID3D11RenderTargetView *rtv[GST_VIDEO_MAX_PLANES] = { nullptr, }; GstVideoFrame target_frame; guint num_rtv = GST_VIDEO_INFO_N_PLANES (&vagg->info); GstD3D11DeviceLockGuard lk (self->device); if (!self->downstream_supports_d3d11) target_buf = self->fallback_buf; if (!gst_video_frame_map (&target_frame, &vagg->info, target_buf, (GstMapFlags) (GST_MAP_WRITE | GST_MAP_D3D11))) { GST_ERROR_OBJECT (self, "Failed to map render target frame"); return GST_FLOW_ERROR; } if (!gst_d3d11_buffer_get_render_target_view (target_buf, rtv)) { GST_ERROR_OBJECT (self, "RTV is unavailable"); gst_video_frame_unmap (&target_frame); return GST_FLOW_ERROR; } if (!gst_d3d11_compositor_draw_background (self, rtv, num_rtv)) { GST_ERROR_OBJECT (self, "Couldn't draw background"); gst_video_frame_unmap (&target_frame); return GST_FLOW_ERROR; } gst_video_frame_unmap (&target_frame); GST_OBJECT_LOCK (self); for (iter = GST_ELEMENT (vagg)->sinkpads; iter; iter = g_list_next (iter)) { GstVideoAggregatorPad *pad = GST_VIDEO_AGGREGATOR_PAD (iter->data); GstD3D11CompositorPad *cpad = GST_D3D11_COMPOSITOR_PAD (pad); GstVideoFrame *prepared_frame = gst_video_aggregator_pad_get_prepared_frame (pad); gint x, y, w, h; gint x_offset = 0; gint y_offset = 0; GstVideoCropMeta *crop_meta; if (!prepared_frame) continue; if (!gst_d3d11_compositor_pad_setup_converter (pad, vagg)) { GST_ERROR_OBJECT (self, "Couldn't setup converter"); ret = GST_FLOW_ERROR; break; } if (cpad->xpos < 0) x_offset = cpad->xpos; if (cpad->ypos < 0) y_offset = cpad->ypos; crop_meta = gst_buffer_get_video_crop_meta (prepared_frame->buffer); if (crop_meta) { x = crop_meta->x; y = crop_meta->y; w = crop_meta->width; h = crop_meta->height; } else { x = y = 0; w = pad->info.width; h = pad->info.height; } g_object_set (cpad->convert, "src-x", x - x_offset, "src-y", y - y_offset, "src-width", w + x_offset, "src-height", h + y_offset, nullptr); if (!gst_d3d11_converter_convert_buffer_unlocked (cpad->convert, prepared_frame->buffer, target_buf)) { GST_ERROR_OBJECT (self, "Couldn't convert frame"); ret = GST_FLOW_ERROR; break; } } GST_OBJECT_UNLOCK (self); if (ret != GST_FLOW_OK) return ret; if (!self->downstream_supports_d3d11) { if (!gst_d3d11_buffer_copy_into (outbuf, self->fallback_buf, &vagg->info)) { GST_ERROR_OBJECT (self, "Couldn't copy input buffer to fallback buffer"); return GST_FLOW_ERROR; } } return GST_FLOW_OK; } typedef struct { /* without holding ref */ GstD3D11Device *other_device; gboolean have_same_device; } DeviceCheckData; static gboolean gst_d3d11_compositor_check_device_update (GstElement * agg, GstVideoAggregatorPad * vpad, DeviceCheckData * data) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (agg); GstBuffer *buf; GstMemory *mem; GstD3D11Memory *dmem; gboolean update_device = FALSE; buf = gst_video_aggregator_pad_get_current_buffer (vpad); if (!buf) return TRUE; /* Ignore gap buffer */ if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_GAP) || gst_buffer_get_size (buf) == 0) { return TRUE; } mem = gst_buffer_peek_memory (buf, 0); if (!gst_is_d3d11_memory (mem)) return TRUE; dmem = GST_D3D11_MEMORY_CAST (mem); /* We can use existing device */ if (dmem->device == self->device) { data->have_same_device = TRUE; return FALSE; } if (self->adapter < 0) { update_device = TRUE; } else { guint adapter = 0; g_object_get (dmem->device, "adapter", &adapter, nullptr); /* The same GPU as what user wanted, update */ if (adapter == (guint) self->adapter) update_device = TRUE; } if (!update_device) return TRUE; data->other_device = dmem->device; /* Keep iterate since there might be one buffer which holds the same device * as ours */ return TRUE; } static GstFlowReturn gst_d3d11_compositor_create_output_buffer (GstVideoAggregator * vagg, GstBuffer ** outbuffer) { GstD3D11Compositor *self = GST_D3D11_COMPOSITOR (vagg); DeviceCheckData data; /* Check whether there is at least one sinkpad which holds d3d11 buffer * with compatible device, and if not, update our device */ data.other_device = nullptr; data.have_same_device = FALSE; gst_element_foreach_sink_pad (GST_ELEMENT_CAST (vagg), (GstElementForeachPadFunc) gst_d3d11_compositor_check_device_update, &data); if (data.have_same_device || !data.other_device) { return GST_VIDEO_AGGREGATOR_CLASS (parent_class)->create_output_buffer (vagg, outbuffer); } /* Clear all device dependent resources */ gst_element_foreach_sink_pad (GST_ELEMENT_CAST (vagg), (GstElementForeachPadFunc) gst_d3d11_compositor_pad_clear_resource, nullptr); gst_clear_buffer (&self->fallback_buf); g_clear_pointer (&self->checker_background, gst_d3d11_compositor_quad_free); GST_INFO_OBJECT (self, "Updating device %" GST_PTR_FORMAT " -> %" GST_PTR_FORMAT, self->device, data.other_device); gst_object_unref (self->device); self->device = (GstD3D11Device *) gst_object_ref (data.other_device); /* We cannot call gst_aggregator_negotiate() here, since GstVideoAggregator * is holding GST_VIDEO_AGGREGATOR_LOCK() already. * Mark reconfigure and do reconfigure later */ gst_pad_mark_reconfigure (GST_AGGREGATOR_SRC_PAD (vagg)); return GST_AGGREGATOR_FLOW_NEED_DATA; }