mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 19:50:40 +00:00
755 lines
22 KiB
C++
755 lines
22 KiB
C++
/* GStreamer
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* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-d3d11ipcsink
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* @title: d3d11ipcsink
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* @short_description: Direct3D11 Inter Process Communication (IPC) sink
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*
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* d3d11ipcsink exports Direct3D11 texture for connected d3d11ipcsrc elements
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* to be able to import it
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*
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* ## Example launch line
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* ```
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* gst-launch-1.0 videotestsrc ! d3d11upload ! d3d11ipcsink
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* ```
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*
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* Since: 1.24
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstd3d11ipcsink.h"
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#include "gstd3d11ipcserver.h"
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#include "gstd3d11pluginutils.h"
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#include <mutex>
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#include <string>
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#include <vector>
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#include <wrl.h>
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/* *INDENT-OFF* */
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using namespace Microsoft::WRL;
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/* *INDENT-ON* */
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GST_DEBUG_CATEGORY_STATIC (gst_d3d11_ipc_sink_debug);
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#define GST_CAT_DEFAULT gst_d3d11_ipc_sink_debug
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static GstStaticCaps pad_template_caps =
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_IPC_FORMATS) "; "
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GST_VIDEO_CAPS_MAKE (GST_D3D11_IPC_FORMATS));
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enum
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{
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PROP_0,
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PROP_ADAPTER,
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PROP_PIPE_NAME,
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PROP_MIN_BUFFER_SIZE,
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};
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#define DEFAULT_ADAPTER -1
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#define DEFAULT_PIPE_NAME "\\\\.\\pipe\\gst.d3d11.ipc"
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#define DEFAULT_MIN_BUFFER_SIZE 0
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/* *INDENT-OFF* */
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struct GstD3D11IpcSinkPrivate
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{
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GstD3D11Device *device = nullptr;
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GstBufferPool *fallback_pool = nullptr;
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GstVideoInfo info;
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GstD3D11IpcServer *server = nullptr;
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GstCaps *caps = nullptr;
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GstSample *prepared_sample = nullptr;
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HANDLE prepared_handle = nullptr;
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GstD3D11IpcMemLayout layout;
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std::mutex lock;
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/* properties */
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gint adapter = DEFAULT_ADAPTER;
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std::string pipe_name = DEFAULT_PIPE_NAME;
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guint buffer_size = DEFAULT_MIN_BUFFER_SIZE;
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};
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/* *INDENT-ON* */
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struct _GstD3D11IpcSink
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{
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GstBaseSink parent;
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GstD3D11IpcSinkPrivate *priv;
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};
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static void gst_d3d11_ipc_sink_finalize (GObject * object);
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static void gst_d3d11_ipc_sink_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_win32_video_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstClock *gst_d3d11_ipc_sink_provide_clock (GstElement * elem);
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static void gst_d3d11_ipc_sink_set_context (GstElement * elem,
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GstContext * context);
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static gboolean gst_d3d11_ipc_sink_start (GstBaseSink * sink);
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static gboolean gst_d3d11_ipc_sink_stop (GstBaseSink * sink);
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static gboolean gst_d3d11_ipc_sink_set_caps (GstBaseSink * sink,
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GstCaps * caps);
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static void gst_d3d11_ipc_sink_get_time (GstBaseSink * sink, GstBuffer * buf,
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GstClockTime * start, GstClockTime * end);
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static gboolean gst_d3d11_ipc_sink_propose_allocation (GstBaseSink * sink,
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GstQuery * query);
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static gboolean gst_d3d11_ipc_sink_query (GstBaseSink * sink, GstQuery * query);
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static GstFlowReturn gst_d3d11_ipc_sink_prepare (GstBaseSink * sink,
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GstBuffer * buf);
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static GstFlowReturn gst_d3d11_ipc_sink_render (GstBaseSink * sink,
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GstBuffer * buf);
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#define gst_d3d11_ipc_sink_parent_class parent_class
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G_DEFINE_TYPE (GstD3D11IpcSink, gst_d3d11_ipc_sink, GST_TYPE_BASE_SINK);
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static void
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gst_d3d11_ipc_sink_class_init (GstD3D11IpcSinkClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstBaseSinkClass *sink_class = GST_BASE_SINK_CLASS (klass);
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GstCaps *caps;
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object_class->finalize = gst_d3d11_ipc_sink_finalize;
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object_class->set_property = gst_d3d11_ipc_sink_set_property;
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object_class->get_property = gst_win32_video_sink_get_property;
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g_object_class_install_property (object_class, PROP_ADAPTER,
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g_param_spec_int ("adapter", "Adapter",
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"DXGI adapter index (-1 for default)",
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-1, G_MAXINT32, DEFAULT_ADAPTER,
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(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (object_class, PROP_PIPE_NAME,
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g_param_spec_string ("pipe-name", "Pipe Name",
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"The name of Win32 named pipe to communicate with clients. "
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"Validation of the pipe name is caller's responsibility",
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DEFAULT_PIPE_NAME, (GParamFlags) (G_PARAM_READWRITE |
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G_PARAM_STATIC_STRINGS | GST_PARAM_MUTABLE_READY)));
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g_object_class_install_property (object_class, PROP_MIN_BUFFER_SIZE,
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g_param_spec_uint ("min-buffer-size", "Min Buffer Size",
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"Minumum number of buffers", 0, G_MAXUINT, DEFAULT_MIN_BUFFER_SIZE,
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(GParamFlags) (G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS)));
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gst_element_class_set_static_metadata (element_class,
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"Direct3D11 IPC Sink", "Sink/Video",
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"Sends Direct3D11 shared handle to peer d3d11ipcsrc elements",
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"Seungha Yang <seungha@centricular.com>");
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caps = gst_d3d11_get_updated_template_caps (&pad_template_caps);
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
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gst_caps_unref (caps);
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element_class->provide_clock =
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GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_provide_clock);
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element_class->set_context =
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GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_set_context);
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sink_class->start = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_start);
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sink_class->stop = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_stop);
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sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_set_caps);
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sink_class->propose_allocation =
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GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_propose_allocation);
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sink_class->query = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_query);
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sink_class->get_times = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_get_time);
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sink_class->prepare = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_prepare);
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sink_class->render = GST_DEBUG_FUNCPTR (gst_d3d11_ipc_sink_render);
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GST_DEBUG_CATEGORY_INIT (gst_d3d11_ipc_sink_debug, "d3d11ipcsink",
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0, "d3d11ipcsink");
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}
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static void
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gst_d3d11_ipc_sink_init (GstD3D11IpcSink * self)
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{
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self->priv = new GstD3D11IpcSinkPrivate ();
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GST_OBJECT_FLAG_SET (self, GST_ELEMENT_FLAG_PROVIDE_CLOCK);
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GST_OBJECT_FLAG_SET (self, GST_ELEMENT_FLAG_REQUIRE_CLOCK);
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}
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static void
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gst_d3d11_ipc_sink_finalize (GObject * object)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (object);
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delete self->priv;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_d3d11_ipc_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (object);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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std::lock_guard < std::mutex > lk (priv->lock);
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switch (prop_id) {
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case PROP_ADAPTER:
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priv->adapter = g_value_get_int (value);
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break;
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case PROP_PIPE_NAME:
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{
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const gchar *pipe_name = g_value_get_string (value);
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priv->pipe_name.clear ();
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if (pipe_name)
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priv->pipe_name = pipe_name;
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else
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priv->pipe_name = DEFAULT_PIPE_NAME;
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break;
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}
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case PROP_MIN_BUFFER_SIZE:
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priv->buffer_size = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_win32_video_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (object);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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std::lock_guard < std::mutex > lk (priv->lock);
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switch (prop_id) {
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case PROP_ADAPTER:
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g_value_set_int (value, priv->adapter);
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break;
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case PROP_PIPE_NAME:
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g_value_set_string (value, priv->pipe_name.c_str ());
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break;
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case PROP_MIN_BUFFER_SIZE:
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g_value_set_uint (value, priv->buffer_size);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstClock *
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gst_d3d11_ipc_sink_provide_clock (GstElement * elem)
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{
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return gst_system_clock_obtain ();
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}
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static void
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gst_d3d11_ipc_sink_set_context (GstElement * elem, GstContext * context)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (elem);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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gst_d3d11_handle_set_context (elem, context, priv->adapter, &priv->device);
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GST_ELEMENT_CLASS (parent_class)->set_context (elem, context);
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}
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static gboolean
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gst_d3d11_ipc_sink_start (GstBaseSink * sink)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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GST_DEBUG_OBJECT (self, "Start");
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if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), priv->adapter,
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&priv->device)) {
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GST_ERROR_OBJECT (sink, "Cannot create d3d11device");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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gst_d3d11_ipc_sink_stop (GstBaseSink * sink)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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GST_DEBUG_OBJECT (self, "Stop");
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if (priv->server)
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gst_d3d11_ipc_server_stop (priv->server);
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gst_clear_object (&priv->server);
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GST_DEBUG_OBJECT (self, "Server cleared");
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if (priv->fallback_pool) {
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gst_buffer_pool_set_active (priv->fallback_pool, FALSE);
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gst_clear_object (&priv->fallback_pool);
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}
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gst_clear_sample (&priv->prepared_sample);
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gst_clear_object (&priv->device);
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return TRUE;
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}
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static void
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gst_d3d11_ipc_sink_get_time (GstBaseSink * sink, GstBuffer * buf,
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GstClockTime * start, GstClockTime * end)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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GstClockTime timestamp;
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timestamp = GST_BUFFER_PTS (buf);
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if (!GST_CLOCK_TIME_IS_VALID (timestamp))
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timestamp = GST_BUFFER_DTS (buf);
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if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
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*start = timestamp;
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if (GST_BUFFER_DURATION_IS_VALID (buf)) {
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*end = timestamp + GST_BUFFER_DURATION (buf);
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} else if (priv->info.fps_n > 0) {
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*end = timestamp +
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gst_util_uint64_scale_int (GST_SECOND, priv->info.fps_d,
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priv->info.fps_n);
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} else if (sink->segment.rate < 0) {
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*end = timestamp;
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}
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}
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}
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static GstBufferPool *
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gst_d3d11_ipc_sink_create_pool (GstD3D11IpcSink * self,
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const GstVideoInfo * info, GstCaps * caps, guint min_buffers)
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{
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GstD3D11IpcSinkPrivate *priv = self->priv;
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GstStructure *config;
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GstD3D11AllocationParams *params;
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guint bind_flags = 0;
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GstD3D11Format device_format;
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GstBufferPool *pool;
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if (!gst_d3d11_device_get_format (priv->device,
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GST_VIDEO_INFO_FORMAT (info), &device_format)) {
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GST_ERROR_OBJECT (self, "Couldn't get device format");
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return nullptr;
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}
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if ((device_format.format_support[0] &
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(guint) D3D11_FORMAT_SUPPORT_SHADER_SAMPLE) != 0) {
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bind_flags |= D3D11_BIND_SHADER_RESOURCE;
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}
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if ((device_format.format_support[0] &
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(guint) D3D11_FORMAT_SUPPORT_RENDER_TARGET) != 0) {
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bind_flags |= D3D11_BIND_RENDER_TARGET;
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}
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pool = gst_d3d11_buffer_pool_new (priv->device);
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config = gst_buffer_pool_get_config (pool);
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gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
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gst_buffer_pool_config_set_params (config, priv->caps,
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GST_VIDEO_INFO_SIZE (info), min_buffers, 0);
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params = gst_d3d11_allocation_params_new (priv->device, &priv->info,
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GST_D3D11_ALLOCATION_FLAG_DEFAULT, bind_flags,
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D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX |
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D3D11_RESOURCE_MISC_SHARED_NTHANDLE);
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gst_buffer_pool_config_set_d3d11_allocation_params (config, params);
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gst_d3d11_allocation_params_free (params);
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if (!gst_buffer_pool_set_config (pool, config)) {
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GST_ERROR_OBJECT (self, "Couldn't set pool config");
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gst_object_unref (pool);
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return nullptr;
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}
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return pool;
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}
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static gboolean
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gst_d3d11_ipc_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
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{
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GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
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GstD3D11IpcSinkPrivate *priv = self->priv;
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GstCaps *new_caps;
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GstStructure *s;
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const gchar *str;
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GST_DEBUG_OBJECT (self, "New caps %" GST_PTR_FORMAT, caps);
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if (!gst_video_info_from_caps (&priv->info, caps)) {
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GST_ERROR_OBJECT (self, "Invalid caps %" GST_PTR_FORMAT, caps);
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return FALSE;
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}
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if (priv->fallback_pool) {
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gst_buffer_pool_set_active (priv->fallback_pool, FALSE);
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gst_clear_object (&priv->fallback_pool);
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}
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s = gst_caps_get_structure (caps, 0);
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/* Takes values we know it's always deserializable */
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new_caps = gst_caps_new_empty_simple ("video/x-raw");
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gst_caps_set_simple (new_caps, "format", G_TYPE_STRING,
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gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&priv->info)),
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"width", G_TYPE_INT, priv->info.width,
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"height", G_TYPE_INT, priv->info.height,
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"framerate", GST_TYPE_FRACTION, priv->info.fps_n, priv->info.fps_d,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, priv->info.par_n,
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priv->info.par_d, nullptr);
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str = gst_structure_get_string (s, "colorimetry");
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if (str)
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gst_caps_set_simple (new_caps, "colorimetry", G_TYPE_STRING, str, nullptr);
|
|
|
|
str = gst_structure_get_string (s, "mastering-display-info");
|
|
if (str) {
|
|
gst_caps_set_simple (new_caps, "mastering-display-info", G_TYPE_STRING,
|
|
str, nullptr);
|
|
}
|
|
|
|
str = gst_structure_get_string (s, "content-light-level");
|
|
if (str) {
|
|
gst_caps_set_simple (new_caps, "content-light-level", G_TYPE_STRING,
|
|
str, nullptr);
|
|
}
|
|
|
|
gst_caps_set_features_simple (new_caps,
|
|
gst_caps_features_new_static_str (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY,
|
|
nullptr));
|
|
|
|
gst_clear_caps (&priv->caps);
|
|
priv->caps = new_caps;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_d3d11_ipc_sink_propose_allocation (GstBaseSink * sink, GstQuery * query)
|
|
{
|
|
GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
GstCaps *caps;
|
|
GstBufferPool *pool = nullptr;
|
|
GstVideoInfo info;
|
|
guint size;
|
|
gboolean need_pool;
|
|
|
|
gst_query_parse_allocation (query, &caps, &need_pool);
|
|
if (!caps) {
|
|
GST_WARNING_OBJECT (sink, "No caps specified");
|
|
return FALSE;
|
|
}
|
|
|
|
if (!gst_video_info_from_caps (&info, caps)) {
|
|
GST_WARNING_OBJECT (sink, "Invalid caps %" GST_PTR_FORMAT, caps);
|
|
return FALSE;
|
|
}
|
|
|
|
/* the normal size of a frame */
|
|
size = info.size;
|
|
if (need_pool) {
|
|
GstCapsFeatures *features;
|
|
GstStructure *config;
|
|
|
|
features = gst_caps_get_features (caps, 0);
|
|
if (features
|
|
&& gst_caps_features_contains (features,
|
|
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY)) {
|
|
GST_DEBUG_OBJECT (self, "upstream support d3d11 memory");
|
|
pool = gst_d3d11_ipc_sink_create_pool (self, &info, caps,
|
|
priv->buffer_size);
|
|
if (!pool) {
|
|
GST_ERROR_OBJECT (self, "Couldn't create pool");
|
|
return FALSE;
|
|
}
|
|
|
|
config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr,
|
|
nullptr);
|
|
gst_structure_free (config);
|
|
} else {
|
|
pool = gst_video_buffer_pool_new ();
|
|
config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_add_option (config,
|
|
GST_BUFFER_POOL_OPTION_VIDEO_META);
|
|
gst_buffer_pool_config_add_option (config,
|
|
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
|
|
|
|
gst_buffer_pool_config_set_params (config,
|
|
caps, size, priv->buffer_size, 0);
|
|
|
|
if (!gst_buffer_pool_set_config (pool, config)) {
|
|
GST_ERROR_OBJECT (pool, "Couldn't set config");
|
|
gst_object_unref (pool);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
gst_query_add_allocation_pool (query, pool, size, priv->buffer_size, 0);
|
|
gst_clear_object (&pool);
|
|
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_d3d11_ipc_sink_query (GstBaseSink * sink, GstQuery * query)
|
|
{
|
|
GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CONTEXT:
|
|
if (gst_d3d11_handle_context_query (GST_ELEMENT (self), query,
|
|
priv->device)) {
|
|
return TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_BASE_SINK_CLASS (parent_class)->query (sink, query);
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_d3d11_ipc_upload (GstD3D11IpcSink * self, GstBuffer * buf)
|
|
{
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
GstBuffer *uploaded = nullptr;
|
|
GstFlowReturn ret;
|
|
GstMemory *mem;
|
|
const guint misc_flags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX |
|
|
D3D11_RESOURCE_MISC_SHARED_NTHANDLE;
|
|
|
|
mem = gst_buffer_peek_memory (buf, 0);
|
|
if (gst_is_d3d11_memory (mem)) {
|
|
GstD3D11Memory *dmem = GST_D3D11_MEMORY_CAST (mem);
|
|
bool is_same_device = false;
|
|
|
|
if (dmem->device == priv->device) {
|
|
is_same_device = true;
|
|
} else {
|
|
gint64 adapter_luid;
|
|
|
|
g_object_get (dmem->device, "adapter-luid", &adapter_luid, nullptr);
|
|
if (adapter_luid == gst_d3d11_ipc_server_get_adapter_luid (priv->server))
|
|
is_same_device = true;
|
|
}
|
|
|
|
if (is_same_device) {
|
|
D3D11_TEXTURE2D_DESC desc;
|
|
|
|
gst_d3d11_memory_get_texture_desc (dmem, &desc);
|
|
if ((desc.MiscFlags & misc_flags) == misc_flags)
|
|
return gst_buffer_ref (buf);
|
|
}
|
|
}
|
|
|
|
if (!priv->fallback_pool) {
|
|
priv->fallback_pool = gst_d3d11_ipc_sink_create_pool (self, &priv->info,
|
|
priv->caps, 0);
|
|
if (!priv->fallback_pool) {
|
|
GST_ERROR_OBJECT (self, "Couldn't create fallback pool");
|
|
return nullptr;
|
|
}
|
|
|
|
if (!gst_buffer_pool_set_active (priv->fallback_pool, TRUE)) {
|
|
GST_ERROR_OBJECT (self, "Couldn't active pool");
|
|
gst_clear_object (&priv->fallback_pool);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
ret = gst_buffer_pool_acquire_buffer (priv->fallback_pool,
|
|
&uploaded, nullptr);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_ERROR_OBJECT (self, "Couldn't acquire fallback buffer");
|
|
return nullptr;
|
|
}
|
|
|
|
if (!gst_d3d11_buffer_copy_into (uploaded, buf, &priv->info)) {
|
|
GST_ERROR_OBJECT (self, "Couldn't copy memory");
|
|
gst_buffer_unref (uploaded);
|
|
return nullptr;
|
|
}
|
|
|
|
return uploaded;
|
|
}
|
|
|
|
static gboolean
|
|
gst_d3d11_ipc_sink_ensure_server (GstD3D11IpcSink * self, GstBuffer * buffer)
|
|
{
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
GstMemory *mem;
|
|
gint64 adapter_luid;
|
|
|
|
if (priv->server)
|
|
return TRUE;
|
|
|
|
g_object_get (priv->device, "adapter-luid", &adapter_luid, nullptr);
|
|
|
|
mem = gst_buffer_peek_memory (buffer, 0);
|
|
if (gst_is_d3d11_memory (mem)) {
|
|
GstD3D11Memory *dmem = GST_D3D11_MEMORY_CAST (mem);
|
|
if (dmem->device != priv->device) {
|
|
g_object_get (dmem->device, "adapter-luid", &adapter_luid, nullptr);
|
|
gst_object_unref (priv->device);
|
|
priv->device = (GstD3D11Device *) gst_object_ref (dmem->device);
|
|
}
|
|
}
|
|
|
|
priv->server = gst_d3d11_ipc_server_new (priv->pipe_name, adapter_luid);
|
|
if (!priv->server) {
|
|
GST_ERROR_OBJECT (self, "Couldn't create server");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_d3d11_ipc_sink_prepare (GstBaseSink * sink, GstBuffer * buf)
|
|
{
|
|
GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
GstBuffer *uploaded;
|
|
GstD3D11Memory *dmem;
|
|
GstVideoFrame frame;
|
|
HANDLE nt_handle = nullptr;
|
|
|
|
gst_clear_sample (&priv->prepared_sample);
|
|
|
|
if (!gst_d3d11_ipc_sink_ensure_server (self, buf))
|
|
return GST_FLOW_ERROR;
|
|
|
|
uploaded = gst_d3d11_ipc_upload (self, buf);
|
|
if (!uploaded) {
|
|
GST_ERROR_OBJECT (self, "Couldn't upload buffer");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (uploaded, 0);
|
|
|
|
/* Upload staging to device memory */
|
|
if (!gst_video_frame_map (&frame, &priv->info, uploaded,
|
|
(GstMapFlags) (GST_MAP_READ | GST_MAP_D3D11))) {
|
|
GST_ERROR_OBJECT (self, "Couldn't upload memory");
|
|
gst_buffer_unref (uploaded);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
priv->layout.size = dmem->mem.size;
|
|
priv->layout.pitch = frame.info.stride[0];
|
|
for (guint i = 0; i < GST_VIDEO_FRAME_N_PLANES (&frame); i++)
|
|
priv->layout.offset[i] = frame.info.offset[i];
|
|
|
|
gst_video_frame_unmap (&frame);
|
|
|
|
if (!gst_d3d11_memory_get_nt_handle (dmem, &nt_handle)) {
|
|
GST_ERROR_OBJECT (self, "Couldn't get NT handle");
|
|
gst_buffer_unref (uploaded);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
priv->prepared_sample = gst_sample_new (uploaded,
|
|
priv->caps, nullptr, nullptr);
|
|
priv->prepared_handle = nt_handle;
|
|
|
|
gst_buffer_unref (uploaded);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_d3d11_ipc_sink_render (GstBaseSink * sink, GstBuffer * buf)
|
|
{
|
|
GstD3D11IpcSink *self = GST_D3D11_IPC_SINK (sink);
|
|
GstD3D11IpcSinkPrivate *priv = self->priv;
|
|
GstClockTime pts;
|
|
GstClockTime now_system;
|
|
GstClockTime buf_pts;
|
|
GstClockTime buffer_clock = GST_CLOCK_TIME_NONE;
|
|
GstFlowReturn ret;
|
|
|
|
if (!priv->prepared_sample) {
|
|
GST_ERROR_OBJECT (self, "Have no prepared sample");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
pts = now_system = gst_util_get_timestamp ();
|
|
buf_pts = GST_BUFFER_PTS (buf);
|
|
if (!GST_CLOCK_TIME_IS_VALID (buf_pts))
|
|
buf_pts = GST_BUFFER_DTS (buf);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (buf_pts)) {
|
|
buffer_clock = gst_segment_to_running_time (&sink->segment,
|
|
GST_FORMAT_TIME, buf_pts) +
|
|
GST_ELEMENT_CAST (sink)->base_time + gst_base_sink_get_latency (sink);
|
|
}
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (buffer_clock)) {
|
|
GstClock *clock = gst_element_get_clock (GST_ELEMENT_CAST (sink));
|
|
if (!gst_d3d11_ipc_clock_is_system (clock)) {
|
|
GstClockTime now_gst = gst_clock_get_time (clock);
|
|
GstClockTimeDiff converted = buffer_clock;
|
|
|
|
converted -= now_gst;
|
|
converted += now_system;
|
|
|
|
if (converted < 0) {
|
|
/* Shouldn't happen */
|
|
GST_WARNING_OBJECT (self, "Negative buffer clock");
|
|
pts = 0;
|
|
} else {
|
|
pts = converted;
|
|
}
|
|
} else {
|
|
/* buffer clock is already system time */
|
|
pts = buffer_clock;
|
|
}
|
|
gst_object_unref (clock);
|
|
}
|
|
|
|
ret = gst_d3d11_ipc_server_send_data (priv->server, priv->prepared_sample,
|
|
priv->layout, priv->prepared_handle, pts);
|
|
|
|
return ret;
|
|
}
|