gstreamer/sys/d3d11/gstd3d11videosink.c

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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11videosink.h"
#include "gstd3d11memory.h"
#include "gstd3d11utils.h"
#include "gstd3d11device.h"
#include "gstd3d11bufferpool.h"
enum
{
PROP_0,
PROP_ADAPTER,
PROP_FORCE_ASPECT_RATIO,
PROP_ENABLE_NAVIGATION_EVENTS
};
#define DEFAULT_ADAPTER -1
#define DEFAULT_FORCE_ASPECT_RATIO 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) { BGRA, RGBA, RGB10A2_LE }, "
"framerate = (fraction) [ 0, MAX ], "
"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
);
GST_DEBUG_CATEGORY (d3d11_video_sink_debug);
#define GST_CAT_DEFAULT d3d11_video_sink_debug
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_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 GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf);
#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);
gobject_class->set_property = gst_d3d11_videosink_set_property;
gobject_class->get_property = gst_d3d11_videosink_get_property;
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,
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,
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,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_set_context);
gst_element_class_set_static_metadata (element_class,
"Direct3D11 video sink", "Sink/Video",
"A Direct3D11 based videosink",
"Seungha Yang <seungha.yang@navercorp.com>");
gst_element_class_add_static_pad_template (element_class, &sink_template);
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);
videosink_class->show_frame =
GST_DEBUG_FUNCPTR (gst_d3d11_video_sink_show_frame);
}
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;
}
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;
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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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->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;
if (self->device)
caps = gst_d3d11_device_get_supported_caps (self->device,
D3D11_FORMAT_SUPPORT_TEXTURE2D | D3D11_FORMAT_SUPPORT_DISPLAY |
D3D11_FORMAT_SUPPORT_RENDER_TARGET);
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_d3d11_video_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstCaps *sink_caps = NULL;
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;
D3D11_TEXTURE2D_DESC desc = { 0, };
ID3D11Texture2D *staging;
GST_DEBUG_OBJECT (self, "set caps %" GST_PTR_FORMAT, caps);
sink_caps = gst_d3d11_device_get_supported_caps (self->device,
D3D11_FORMAT_SUPPORT_TEXTURE2D | D3D11_FORMAT_SUPPORT_DISPLAY |
D3D11_FORMAT_SUPPORT_RENDER_TARGET);
GST_DEBUG_OBJECT (self, "supported caps %" GST_PTR_FORMAT, sink_caps);
if (!gst_caps_can_intersect (sink_caps, caps))
goto incompatible_caps;
gst_clear_caps (&sink_caps);
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 (sink,
"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;
self->dxgi_format =
gst_d3d11_dxgi_format_from_gst (GST_VIDEO_INFO_FORMAT (&self->info));
if (!self->window_id)
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (self));
if (self->window_id) {
GST_DEBUG_OBJECT (self, "Set external window %" G_GUINTPTR_FORMAT,
(guintptr) self->window_id);
gst_d3d11_window_set_window_handle (self->window, self->window_id);
}
GST_OBJECT_LOCK (self);
if (!self->pending_render_rect) {
self->render_rect.x = 0;
self->render_rect.y = 0;
self->render_rect.w = GST_VIDEO_SINK_WIDTH (self);
self->render_rect.h = GST_VIDEO_SINK_HEIGHT (self);
}
gst_d3d11_window_set_render_rectangle (self->window,
self->render_rect.x, self->render_rect.y, self->render_rect.w,
self->render_rect.h);
self->pending_render_rect = FALSE;
if (!self->force_aspect_ratio) {
g_object_set (self->window,
"force-aspect-ratio", self->force_aspect_ratio, NULL);
}
GST_OBJECT_UNLOCK (self);
if (!gst_d3d11_window_prepare (self->window, GST_VIDEO_SINK_WIDTH (self),
GST_VIDEO_SINK_HEIGHT (self), num, den, self->dxgi_format, caps)) {
GST_ERROR_OBJECT (self, "cannot create swapchain");
return FALSE;
}
if (self->fallback_staging) {
gst_d3d11_device_release_texture (self->device, self->fallback_staging);
self->fallback_staging = NULL;
}
desc.Width = GST_VIDEO_SINK_WIDTH (self);
desc.Height = GST_VIDEO_SINK_HEIGHT (self);
desc.MipLevels = 1;
desc.Format = self->dxgi_format;
desc.SampleDesc.Count = 1;
desc.ArraySize = 1;
desc.Usage = D3D11_USAGE_STAGING;
desc.CPUAccessFlags = (D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE);
staging = gst_d3d11_device_create_texture (self->device, &desc, NULL);
if (!staging) {
GST_ERROR_OBJECT (self, "cannot create fallback staging texture");
return FALSE;
}
self->fallback_staging = staging;
return TRUE;
/* ERRORS */
incompatible_caps:
{
GST_ERROR_OBJECT (sink, "caps incompatible");
gst_clear_caps (&sink_caps);
return FALSE;
}
invalid_format:
{
GST_DEBUG_OBJECT (sink,
"Could not locate image format from caps %" GST_PTR_FORMAT, caps);
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 void
gst_d3d11_video_sink_key_event (GstD3D11Window * window, const gchar * event,
const gchar * key, GstD3D11VideoSink * self)
{
if (self->enable_navigation_events) {
GST_LOG_OBJECT (self, "send key event %s, key %s", event, key);
gst_navigation_send_key_event (GST_NAVIGATION (self), event, key);
}
}
static void
gst_d3d11_video_mouse_key_event (GstD3D11Window * window, const gchar * event,
gint button, gdouble x, gdouble y, GstD3D11VideoSink * self)
{
if (self->enable_navigation_events) {
GST_LOG_OBJECT (self,
"send mouse event %s, button %d (%.1f, %.1f)", event, button, x, y);
gst_navigation_send_mouse_event (GST_NAVIGATION (self), event, button, x,
y);
}
}
static void
gst_d3d11_video_sink_got_window_handle (GstD3D11Window * window,
gpointer window_handle, GstD3D11VideoSink * self)
{
GST_LOG_OBJECT (self,
"got window handle %" G_GUINTPTR_FORMAT, (guintptr) window_handle);
gst_video_overlay_got_window_handle (GST_VIDEO_OVERLAY (self),
(guintptr) window_handle);
}
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->device,
self->adapter) || !self->device) {
GST_ERROR_OBJECT (sink, "Cannot create d3d11device");
return FALSE;
}
self->window = gst_d3d11_window_new (self->device);
if (!self->window) {
GST_ERROR_OBJECT (sink, "Cannot create d3d11window");
return FALSE;
}
g_object_set (self->window,
"enable-navigation-events", self->enable_navigation_events, NULL);
g_signal_connect (self->window, "key-event",
G_CALLBACK (gst_d3d11_video_sink_key_event), self);
g_signal_connect (self->window, "mouse-event",
G_CALLBACK (gst_d3d11_video_mouse_key_event), self);
g_signal_connect (self->window, "got-window-handle",
G_CALLBACK (gst_d3d11_video_sink_got_window_handle), 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_staging) {
ID3D11Texture2D_Release (self->fallback_staging);
self->fallback_staging = NULL;
}
gst_clear_object (&self->device);
gst_clear_object (&self->window);
return TRUE;
}
static gboolean
gst_d3d11_video_sink_propose_allocation (GstBaseSink * sink, GstQuery * query)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstStructure *config;
GstCaps *caps;
GstBufferPool *pool = NULL;
GstVideoInfo info;
guint size;
gboolean need_pool;
if (!self->device || !self->window)
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) {
GST_DEBUG_OBJECT (self, "create new pool");
pool = (GstBufferPool *) gst_d3d11_buffer_pool_new (self->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 2,
DXGI_MAX_SWAP_CHAIN_BUFFERS);
if (!gst_buffer_pool_set_config (pool, config)) {
g_object_unref (pool);
goto config_failed;
}
}
gst_query_add_allocation_pool (query, pool, size, 2,
DXGI_MAX_SWAP_CHAIN_BUFFERS);
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_CROP_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;
}
config_failed:
{
GST_WARNING_OBJECT (self, "failed setting config");
return FALSE;
}
return TRUE;
}
typedef struct
{
GstD3D11VideoSink *sink;
GstVideoFrame *frame;
ID3D11Resource *resource;
GstFlowReturn ret;
} FrameUploadData;
static void
_upload_frame (GstD3D11Device * device, gpointer data)
{
GstD3D11VideoSink *self;
HRESULT hr;
ID3D11DeviceContext *device_context;
FrameUploadData *upload_data = (FrameUploadData *) data;
D3D11_MAPPED_SUBRESOURCE d3d11_map;
guint i;
guint8 *dst;
self = upload_data->sink;
device_context = gst_d3d11_device_get_device_context (device);
hr = ID3D11DeviceContext_Map (device_context,
upload_data->resource, 0, D3D11_MAP_WRITE, 0, &d3d11_map);
if (FAILED (hr)) {
GST_ERROR_OBJECT (self, "cannot map d3d11 staging texture");
upload_data->ret = GST_FLOW_ERROR;
return;
}
dst = d3d11_map.pData;
for (i = 0; i < GST_VIDEO_FRAME_N_PLANES (upload_data->frame); i++) {
guint w, h;
guint j;
guint8 *src;
gint src_stride;
w = GST_VIDEO_FRAME_COMP_WIDTH (upload_data->frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (upload_data->frame, i);
h = GST_VIDEO_FRAME_COMP_HEIGHT (upload_data->frame, i);
src = GST_VIDEO_FRAME_PLANE_DATA (upload_data->frame, i);
src_stride = GST_VIDEO_FRAME_PLANE_STRIDE (upload_data->frame, i);
for (j = 0; j < h; j++) {
memcpy (dst, src, w);
dst += d3d11_map.RowPitch;
src += src_stride;
}
}
ID3D11DeviceContext_Unmap (device_context, upload_data->resource, 0);
}
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (sink);
GstVideoFrame frame;
FrameUploadData data;
ID3D11Texture2D *texture;
GstMapInfo map;
GstFlowReturn ret;
gboolean need_unmap = FALSE;
GstMemory *mem;
GstVideoRectangle rect = { 0, };
GstVideoCropMeta *crop;
if (gst_buffer_n_memory (buf) == 1 && (mem = gst_buffer_peek_memory (buf, 0))
&& gst_memory_is_type (mem, GST_D3D11_MEMORY_NAME)) {
/* If this buffer has been allocated using our buffer management we simply
put the ximage which is in the PRIVATE pointer */
GST_TRACE_OBJECT (self, "buffer %p from our pool, writing directly", buf);
if (!gst_memory_map (mem, &map, (GST_MAP_READ | GST_MAP_D3D11))) {
GST_ERROR_OBJECT (self, "cannot map d3d11 memory");
return GST_FLOW_ERROR;
}
texture = (ID3D11Texture2D *) map.data;
need_unmap = TRUE;
} else {
if (!gst_video_frame_map (&frame, &self->info, buf, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "cannot map video frame");
return GST_FLOW_ERROR;
}
GST_TRACE_OBJECT (self,
"buffer %p out of our pool, write to stage buffer", buf);
data.sink = self;
data.frame = &frame;
data.resource = (ID3D11Resource *) self->fallback_staging;
data.ret = GST_FLOW_OK;
gst_d3d11_device_thread_add (self->device, (GstD3D11DeviceThreadFunc)
_upload_frame, &data);
if (data.ret != GST_FLOW_OK)
return data.ret;
gst_video_frame_unmap (&frame);
texture = self->fallback_staging;
}
gst_d3d11_window_show (self->window);
crop = gst_buffer_get_video_crop_meta (buf);
if (crop) {
rect.x = crop->x;
rect.y = crop->y;
rect.w = crop->width;
rect.h = crop->height;
} else {
rect.w = self->video_width;
rect.h = self->video_height;
}
ret = gst_d3d11_window_render (self->window, texture, &rect);
if (need_unmap)
gst_memory_unmap (mem, &map);
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) {
gst_d3d11_window_set_render_rectangle (self->window, x, y, width, height);
} 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) {
GstVideoRectangle rect = { 0, };
rect.w = GST_VIDEO_SINK_WIDTH (self);
rect.h = GST_VIDEO_SINK_HEIGHT (self);
gst_d3d11_window_render (self->window, NULL, &rect);
}
}
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,
GstStructure * structure)
{
GstD3D11VideoSink *self = GST_D3D11_VIDEO_SINK (navigation);
gboolean handled = FALSE;
GstEvent *event = NULL;
GstVideoRectangle src = { 0, };
GstVideoRectangle dst = { 0, };
GstVideoRectangle result;
gdouble x, y, xscale = 1.0, yscale = 1.0;
if (!self->window) {
gst_structure_free (structure);
return;
}
if (self->force_aspect_ratio) {
/* We get the frame position using the calculated geometry from _setcaps
that respect pixel aspect ratios */
src.w = GST_VIDEO_SINK_WIDTH (self);
src.h = GST_VIDEO_SINK_HEIGHT (self);
dst.w = self->render_rect.w;
dst.h = self->render_rect.h;
gst_video_sink_center_rect (src, dst, &result, TRUE);
result.x += self->render_rect.x;
result.y += self->render_rect.y;
} else {
memcpy (&result, &self->render_rect, sizeof (GstVideoRectangle));
}
xscale = (gdouble) GST_VIDEO_INFO_WIDTH (&self->info) / result.w;
yscale = (gdouble) GST_VIDEO_INFO_HEIGHT (&self->info) / result.h;
/* Converting pointer coordinates to the non scaled geometry */
if (gst_structure_get_double (structure, "pointer_x", &x)) {
x = MIN (x, result.x + result.w);
x = MAX (x - result.x, 0);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
(gdouble) x * xscale, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &y)) {
y = MIN (y, result.y + result.h);
y = MAX (y - result.y, 0);
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
(gdouble) y * yscale, NULL);
}
event = gst_event_new_navigation (structure);
if (event) {
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 = gst_d3d11_video_sink_navigation_send_event;
}