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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1f080391ed
The purpose of this refactor is to hide decoding code from public API. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6723>
345 lines
8.5 KiB
C
345 lines
8.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@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 "gstvkqueue.h"
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#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
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#include "gstvkdecoder-private.h"
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#endif
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/**
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* SECTION:vkqueue
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* @title: GstVulkanQueue
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* @short_description: Vulkan command queue
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* @see_also: #GstVulkanDevice
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*
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* GstVulkanQueue encapsulates the vulkan command queue.
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*/
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#define GST_CAT_DEFAULT gst_vulkan_queue_debug
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GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
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static void
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_init_debug (void)
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{
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static gsize init;
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if (g_once_init_enter (&init)) {
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "vulkanqueue", 0, "Vulkan Queue");
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GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
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g_once_init_leave (&init, 1);
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}
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}
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struct _GstVulkanQueuePrivate
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{
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GMutex submit_lock;
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};
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#define parent_class gst_vulkan_queue_parent_class
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G_DEFINE_TYPE_WITH_CODE (GstVulkanQueue, gst_vulkan_queue, GST_TYPE_OBJECT,
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G_ADD_PRIVATE (GstVulkanQueue); _init_debug ());
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#define GET_PRIV(queue) gst_vulkan_queue_get_instance_private (queue)
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static void gst_vulkan_queue_dispose (GObject * object);
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static void
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gst_vulkan_queue_init (GstVulkanQueue * queue)
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{
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GstVulkanQueuePrivate *priv = GET_PRIV (queue);
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g_mutex_init (&priv->submit_lock);
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}
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static void
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gst_vulkan_queue_class_init (GstVulkanQueueClass * queue_class)
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{
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GObjectClass *gobject_class = (GObjectClass *) queue_class;
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gobject_class->dispose = gst_vulkan_queue_dispose;
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}
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static void
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gst_vulkan_queue_dispose (GObject * object)
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{
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GstVulkanQueue *queue = GST_VULKAN_QUEUE (object);
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GstVulkanQueuePrivate *priv = GET_PRIV (queue);
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if (queue->device)
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gst_object_unref (queue->device);
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queue->device = NULL;
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g_mutex_clear (&priv->submit_lock);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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/**
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* gst_vulkan_queue_get_device
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* @queue: a #GstVulkanQueue
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*
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* Returns: (transfer full) (nullable): the #GstVulkanDevice for @queue
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*
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* Since: 1.18
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*/
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GstVulkanDevice *
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gst_vulkan_queue_get_device (GstVulkanQueue * queue)
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{
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g_return_val_if_fail (GST_IS_VULKAN_QUEUE (queue), NULL);
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return gst_object_ref (queue->device);
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}
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/**
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* gst_vulkan_queue_create_command_pool:
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* @queue: a #GstVulkanQueue
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* @error: (out) (optional): a #GError
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*
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* Returns: (transfer full): a new #GstVulkanCommandPool or %NULL
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*
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* Since: 1.18
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*/
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GstVulkanCommandPool *
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gst_vulkan_queue_create_command_pool (GstVulkanQueue * queue, GError ** error)
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{
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GstVulkanCommandPool *pool;
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VkCommandPoolCreateInfo cmd_pool_info = { 0, };
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VkCommandPool vk_pool;
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VkResult err;
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g_return_val_if_fail (GST_IS_VULKAN_QUEUE (queue), NULL);
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cmd_pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
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cmd_pool_info.pNext = NULL;
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cmd_pool_info.queueFamilyIndex = queue->family;
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cmd_pool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
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GST_OBJECT_LOCK (queue->device);
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err =
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vkCreateCommandPool (queue->device->device, &cmd_pool_info, NULL,
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&vk_pool);
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if (gst_vulkan_error_to_g_error (err, error, "vkCreateCommandPool") < 0) {
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GST_OBJECT_LOCK (queue->device);
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goto error;
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}
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GST_OBJECT_UNLOCK (queue->device);
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pool = g_object_new (GST_TYPE_VULKAN_COMMAND_POOL, NULL);
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gst_object_ref_sink (pool);
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pool->queue = gst_object_ref (queue);
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pool->pool = vk_pool;
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return pool;
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error:
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return NULL;
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}
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/**
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* gst_context_set_vulkan_queue:
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* @context: a #GstContext
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* @queue: a #GstVulkanQueue
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*
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* Sets @queue on @context
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*
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* Since: 1.18
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*/
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void
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gst_context_set_vulkan_queue (GstContext * context, GstVulkanQueue * queue)
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{
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GstStructure *s;
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g_return_if_fail (context != NULL);
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g_return_if_fail (gst_context_is_writable (context));
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if (queue)
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GST_CAT_LOG (GST_CAT_CONTEXT,
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"setting GstVulkanQueue(%" GST_PTR_FORMAT ") on context(%"
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GST_PTR_FORMAT ")", queue, context);
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s = gst_context_writable_structure (context);
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gst_structure_set (s, GST_VULKAN_QUEUE_CONTEXT_TYPE_STR,
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GST_TYPE_VULKAN_QUEUE, queue, NULL);
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}
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/**
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* gst_context_get_vulkan_queue:
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* @context: a #GstContext
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* @queue: resulting #GstVulkanQueue
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*
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* Returns: Whether @queue was in @context
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*
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* Since: 1.18
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*/
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gboolean
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gst_context_get_vulkan_queue (GstContext * context, GstVulkanQueue ** queue)
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{
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const GstStructure *s;
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gboolean ret;
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g_return_val_if_fail (queue != NULL, FALSE);
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g_return_val_if_fail (context != NULL, FALSE);
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s = gst_context_get_structure (context);
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ret = gst_structure_get (s, GST_VULKAN_QUEUE_CONTEXT_TYPE_STR,
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GST_TYPE_VULKAN_QUEUE, queue, NULL);
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GST_CAT_LOG (GST_CAT_CONTEXT, "got GstVulkanQueue(%" GST_PTR_FORMAT
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") from context(%" GST_PTR_FORMAT ")", *queue, context);
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return ret;
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}
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/**
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* gst_vulkan_queue_handle_context_query:
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* @element: a #GstElement
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* @query: a #GstQuery of type #GST_QUERY_CONTEXT
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* @queue: (nullable): the #GstVulkanQueue
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*
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* If a #GstVulkanQueue is requested in @query, sets @queue as the reply.
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*
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* Intended for use with element query handlers to respond to #GST_QUERY_CONTEXT
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* for a #GstVulkanQueue.
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*
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* Returns: whether @query was responded to with @queue
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*
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* Since: 1.18
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*/
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gboolean
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gst_vulkan_queue_handle_context_query (GstElement * element, GstQuery * query,
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GstVulkanQueue * queue)
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{
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gboolean res = FALSE;
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const gchar *context_type;
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GstContext *context, *old_context;
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g_return_val_if_fail (element != NULL, FALSE);
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g_return_val_if_fail (query != NULL, FALSE);
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g_return_val_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_CONTEXT, FALSE);
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if (!queue)
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return FALSE;
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gst_query_parse_context_type (query, &context_type);
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if (g_strcmp0 (context_type, GST_VULKAN_QUEUE_CONTEXT_TYPE_STR) == 0) {
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gst_query_parse_context (query, &old_context);
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if (old_context)
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context = gst_context_copy (old_context);
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else
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context = gst_context_new (GST_VULKAN_QUEUE_CONTEXT_TYPE_STR, TRUE);
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gst_context_set_vulkan_queue (context, queue);
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gst_query_set_context (query, context);
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gst_context_unref (context);
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res = queue != NULL;
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}
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return res;
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}
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/**
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* gst_vulkan_queue_run_context_query:
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* @element: a #GstElement
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* @queue: (inout): a #GstVulkanQueue
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*
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* Attempt to retrieve a #GstVulkanQueue using #GST_QUERY_CONTEXT from the
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* surrounding elements of @element.
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*
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* Returns: whether @queue contains a valid #GstVulkanQueue
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*
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* Since: 1.18
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*/
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gboolean
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gst_vulkan_queue_run_context_query (GstElement * element,
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GstVulkanQueue ** queue)
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{
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GstQuery *query;
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g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
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g_return_val_if_fail (queue != NULL, FALSE);
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_init_debug ();
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if (*queue && GST_IS_VULKAN_QUEUE (*queue))
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return TRUE;
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if ((query =
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gst_vulkan_local_context_query (element,
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GST_VULKAN_QUEUE_CONTEXT_TYPE_STR))) {
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GstContext *context;
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gst_query_parse_context (query, &context);
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if (context)
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gst_context_get_vulkan_queue (context, queue);
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gst_query_unref (query);
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}
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GST_DEBUG_OBJECT (element, "found queue %p", *queue);
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if (*queue)
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return TRUE;
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return FALSE;
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}
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/**
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* gst_vulkan_queue_submit_lock:
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* @queue: a #GstVulkanQueue
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*
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* Locks the queue for command submission using `vkQueueSubmit()` to meet the
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* Vulkan requirements for externally synchronised resources.
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*
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* Since: 1.18
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*/
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void
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gst_vulkan_queue_submit_lock (GstVulkanQueue * queue)
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{
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GstVulkanQueuePrivate *priv = GET_PRIV (queue);
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g_mutex_lock (&priv->submit_lock);
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}
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/**
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* gst_vulkan_queue_submit_unlock:
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* @queue: a #GstVulkanQueue
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*
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* Unlocks the queue for command submission using `vkQueueSubmit()`.
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*
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* See gst_vulkan_queue_submit_lock() for details on when this call is needed.
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*
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* Since: 1.18
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*/
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void
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gst_vulkan_queue_submit_unlock (GstVulkanQueue * queue)
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{
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GstVulkanQueuePrivate *priv = GET_PRIV (queue);
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g_mutex_unlock (&priv->submit_lock);
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}
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