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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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0527f27204
GstD3D12Device object itself is not singltons anymore but underlying private struct is singltons. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6494>
257 lines
7.6 KiB
C++
257 lines
7.6 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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "gstd3d12basefilter.h"
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GST_DEBUG_CATEGORY_STATIC (gst_d3d12_base_filter_debug);
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#define GST_CAT_DEFAULT gst_d3d12_base_filter_debug
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#define META_TAG_VIDEO meta_tag_video_quark
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static GQuark meta_tag_video_quark;
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#define gst_d3d12_base_filter_parent_class parent_class
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstD3D12BaseFilter, gst_d3d12_base_filter,
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GST_TYPE_BASE_TRANSFORM,
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GST_DEBUG_CATEGORY_INIT (gst_d3d12_base_filter_debug,
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"d3d12basefilter", 0, "d3d12 basefilter"));
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static void gst_d3d12_base_filter_dispose (GObject * object);
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static void gst_d3d12_base_filter_set_context (GstElement * element,
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GstContext * context);
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static gboolean gst_d3d12_base_filter_start (GstBaseTransform * trans);
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static gboolean gst_d3d12_base_filter_stop (GstBaseTransform * trans);
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static gboolean gst_d3d12_base_filter_set_caps (GstBaseTransform * trans,
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GstCaps * incaps, GstCaps * outcaps);
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static gboolean
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gst_d3d12_base_filter_query (GstBaseTransform * trans,
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GstPadDirection direction, GstQuery * query);
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static void gst_d3d12_base_filter_before_transform (GstBaseTransform * trans,
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GstBuffer * buffer);
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static gboolean gst_d3d12_base_filter_transform_meta (GstBaseTransform * trans,
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GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf);
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static void
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gst_d3d12_base_filter_class_init (GstD3D12BaseFilterClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
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gobject_class->dispose = gst_d3d12_base_filter_dispose;
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element_class->set_context =
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GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_set_context);
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trans_class->start = GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_start);
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trans_class->stop = GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_stop);
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trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_set_caps);
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trans_class->query = GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_query);
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trans_class->before_transform =
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GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_before_transform);
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trans_class->transform_meta =
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GST_DEBUG_FUNCPTR (gst_d3d12_base_filter_transform_meta);
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gst_type_mark_as_plugin_api (GST_TYPE_D3D12_BASE_FILTER,
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(GstPluginAPIFlags) 0);
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meta_tag_video_quark = g_quark_from_static_string (GST_META_TAG_VIDEO_STR);
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}
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static void
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gst_d3d12_base_filter_init (GstD3D12BaseFilter * filter)
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{
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}
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static void
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gst_d3d12_base_filter_dispose (GObject * object)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (object);
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gst_clear_object (&self->device);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_d3d12_base_filter_set_context (GstElement * element, GstContext * context)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (element);
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gst_d3d12_handle_set_context (element, context, -1, &self->device);
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GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
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}
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static gboolean
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gst_d3d12_base_filter_start (GstBaseTransform * trans)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (trans);
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if (!gst_d3d12_ensure_element_data (GST_ELEMENT_CAST (self),
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-1, &self->device)) {
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GST_ERROR_OBJECT (self, "Failed to get D3D12 device");
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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_d3d12_base_filter_stop (GstBaseTransform * trans)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (trans);
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gst_clear_object (&self->device);
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return TRUE;
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}
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static gboolean
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gst_d3d12_base_filter_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (trans);
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GstVideoInfo in_info, out_info;
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GstD3D12BaseFilterClass *klass;
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gboolean res;
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if (!self->device) {
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GST_ERROR_OBJECT (self, "No available D3D12 device");
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return FALSE;
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}
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if (!gst_video_info_from_caps (&in_info, incaps)) {
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GST_ERROR_OBJECT (self, "Invalid input caps %" GST_PTR_FORMAT, incaps);
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return FALSE;
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}
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if (!gst_video_info_from_caps (&out_info, outcaps)) {
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GST_ERROR_OBJECT (self, "Invalid output caps %" GST_PTR_FORMAT, outcaps);
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return FALSE;
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}
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klass = GST_D3D12_BASE_FILTER_GET_CLASS (self);
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if (klass->set_info)
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res = klass->set_info (self, incaps, &in_info, outcaps, &out_info);
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else
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res = TRUE;
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if (res) {
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self->in_info = in_info;
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self->out_info = out_info;
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}
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return res;
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}
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static gboolean
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gst_d3d12_base_filter_query (GstBaseTransform * trans,
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GstPadDirection direction, GstQuery * query)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (trans);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONTEXT:
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{
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if (gst_d3d12_handle_context_query (GST_ELEMENT (self), query,
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self->device)) {
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return TRUE;
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}
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break;
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}
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default:
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break;
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}
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return GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
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query);
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}
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static void
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gst_d3d12_base_filter_before_transform (GstBaseTransform * trans,
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GstBuffer * buffer)
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{
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GstD3D12BaseFilter *self = GST_D3D12_BASE_FILTER (trans);
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GstD3D12Memory *dmem;
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GstMemory *mem;
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GstCaps *in_caps = nullptr;
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GstCaps *out_caps = nullptr;
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mem = gst_buffer_peek_memory (buffer, 0);
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if (!gst_is_d3d12_memory (mem))
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return;
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dmem = GST_D3D12_MEMORY_CAST (mem);
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/* d3d12 devices are singletons per adapter */
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if (gst_d3d12_device_is_equal (dmem->device, self->device))
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return;
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GST_INFO_OBJECT (self, "Updating device %" GST_PTR_FORMAT " -> %"
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GST_PTR_FORMAT, self->device, dmem->device);
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gst_object_unref (self->device);
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self->device = (GstD3D12Device *) gst_object_ref (dmem->device);
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in_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SINK_PAD (trans));
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if (!in_caps) {
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GST_WARNING_OBJECT (self, "sinkpad has null caps");
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goto out;
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}
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out_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SRC_PAD (trans));
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if (!out_caps) {
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GST_WARNING_OBJECT (self, "Has no configured output caps");
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goto out;
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}
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/* subclass will update internal object.
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* Note that gst_base_transform_reconfigure() might not trigger this
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* unless caps was changed meanwhile */
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gst_d3d12_base_filter_set_caps (trans, in_caps, out_caps);
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/* Mark reconfigure so that we can update pool */
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gst_base_transform_reconfigure_src (trans);
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out:
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gst_clear_caps (&in_caps);
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gst_clear_caps (&out_caps);
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return;
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}
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static gboolean
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gst_d3d12_base_filter_transform_meta (GstBaseTransform * trans,
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GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf)
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{
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const GstMetaInfo *info = meta->info;
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const gchar *const *tags;
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tags = gst_meta_api_type_get_tags (info->api);
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if (!tags || (g_strv_length ((gchar **) tags) == 1
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&& gst_meta_api_type_has_tag (info->api, META_TAG_VIDEO))) {
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return TRUE;
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}
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return GST_BASE_TRANSFORM_CLASS (parent_class)->transform_meta (trans, outbuf,
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meta, inbuf);
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}
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