gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c
Víctor Manuel Jáquez Leal 1b1593568f vkencoder: add gstvkencoder helper object
Add a gstvkencoder class to support Vulkan encoder such as H26X
formats.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6676>
2024-05-03 19:40:16 +00:00

1462 lines
42 KiB
C

/*
* GStreamer
* Copyright (C) 2023 Igalia, S.L.
*
* 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 "gstvkoperation.h"
/**
* SECTION:vkoperation
* @title: GstVulkanOperation
* @short_description: Vulkan Operation
* @see_also: #GstVulkanCommandPool, #GstVulkanCommandBuffer
*
* A #GstVulkanOperation abstract a queue operation for images adding
* automatically semaphores and barriers. It uses Synchronization2 extension if
* available. Also it enables a VkQueryPool if it's possible and it's requested.
*
* Since: 1.24
*/
typedef struct _GstVulkanDependencyFrame GstVulkanDependencyFrame;
struct _GstVulkanDependencyFrame
{
GstVulkanImageMemory *mem[GST_VIDEO_MAX_PLANES];
gboolean updated;
gboolean semaphored;
guint64 dst_stage;
guint64 new_access;
VkImageLayout new_layout;
GstVulkanQueue *new_queue;
};
struct _GstVulkanOperationPrivate
{
GstVulkanCommandPool *cmd_pool;
GstVulkanTrashList *trash_list;
VkQueryPool query_pool;
VkQueryType query_type;
guint n_queries;
gsize query_data_size;
gsize query_data_stride;
gpointer query_data;
gboolean op_submitted;
gboolean has_sync2;
gboolean has_video;
gboolean has_timeline;
GArray *barriers;
struct
{
GArray *frames;
GArray *wait_semaphores;
GArray *signal_semaphores;
/* if sync2 isn't supported but timeline is */
GArray *wait_dst_stage_mask;
GArray *wait_semaphore_values;
GArray *signal_semaphore_values;
} deps;
#if defined(VK_KHR_synchronization2)
PFN_vkQueueSubmit2KHR QueueSubmit2;
PFN_vkCmdPipelineBarrier2KHR CmdPipelineBarrier2;
#endif
};
enum
{
PROP_COMMAND_POOL = 1,
N_PROPERTIES,
};
static GParamSpec *g_properties[N_PROPERTIES];
GST_DEBUG_CATEGORY_STATIC (GST_CAT_VULKAN_OPERATION);
#define GST_CAT_DEFAULT GST_CAT_VULKAN_OPERATION
#define GET_PRIV(operation) ((GstVulkanOperationPrivate *) \
gst_vulkan_operation_get_instance_private (GST_VULKAN_OPERATION (operation)))
#define gst_vulkan_operation_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanOperation, gst_vulkan_operation,
GST_TYPE_OBJECT, G_ADD_PRIVATE (GstVulkanOperation)
GST_DEBUG_CATEGORY_INIT (GST_CAT_VULKAN_OPERATION,
"vulkanoperation", 0, "Vulkan Operation"));
static void
gst_vulkan_operation_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVulkanOperationPrivate *priv = GET_PRIV (object);
switch (prop_id) {
case PROP_COMMAND_POOL:
g_assert (!priv->cmd_pool);
priv->cmd_pool = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_operation_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVulkanOperationPrivate *priv = GET_PRIV (object);
switch (prop_id) {
case PROP_COMMAND_POOL:
g_value_set_object (value, priv->cmd_pool);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_operation_constructed (GObject * object)
{
#if defined(VK_KHR_timeline_semaphore) || defined(VK_KHR_synchronization2)
GstVulkanOperation *self = GST_VULKAN_OPERATION (object);
GstVulkanOperationPrivate *priv = GET_PRIV (self);
GstVulkanDevice *device = priv->cmd_pool->queue->device;
#if defined(VK_KHR_synchronization2)
priv->has_sync2 = gst_vulkan_device_is_extension_enabled (device,
VK_KHR_SYNCHRONIZATION_2_EXTENSION_NAME);
if (priv->has_sync2) {
priv->QueueSubmit2 = gst_vulkan_instance_get_proc_address (device->instance,
"vkQueueSubmit2");
if (!priv->QueueSubmit2) {
priv->QueueSubmit2 =
gst_vulkan_instance_get_proc_address (device->instance,
"vkQueueSubmit2KHR");
}
if (!priv->CmdPipelineBarrier2) {
priv->CmdPipelineBarrier2 =
gst_vulkan_instance_get_proc_address (device->instance,
"vkCmdPipelineBarrier2");
if (!priv->CmdPipelineBarrier2) {
priv->CmdPipelineBarrier2 =
gst_vulkan_instance_get_proc_address (device->instance,
"vkCmdPipelineBarrier2KHR");
}
}
priv->has_sync2 = (priv->QueueSubmit2 && priv->CmdPipelineBarrier2);
}
#endif
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
priv->has_video = gst_vulkan_device_is_extension_enabled (device,
VK_KHR_VIDEO_QUEUE_EXTENSION_NAME);
#endif
#if defined(VK_KHR_timeline_semaphore)
priv->has_timeline = gst_vulkan_device_is_extension_enabled (device,
VK_KHR_TIMELINE_SEMAPHORE_EXTENSION_NAME);
#endif
#endif
G_OBJECT_CLASS (parent_class)->constructed (object);
}
static void
gst_vulkan_operation_finalize (GObject * object)
{
GstVulkanOperationPrivate *priv = GET_PRIV (object);
gst_vulkan_operation_reset (GST_VULKAN_OPERATION (object));
g_clear_pointer (&priv->query_data, g_free);
if (priv->query_pool) {
vkDestroyQueryPool (priv->cmd_pool->queue->device->device, priv->query_pool,
NULL);
priv->query_pool = VK_NULL_HANDLE;
}
gst_clear_object (&priv->trash_list);
gst_clear_object (&priv->cmd_pool);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_vulkan_operation_init (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv = GET_PRIV (self);
priv->trash_list = gst_vulkan_trash_fence_list_new ();
}
static void
gst_vulkan_operation_class_init (GstVulkanOperationClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_vulkan_operation_set_property;
gobject_class->get_property = gst_vulkan_operation_get_property;
gobject_class->constructed = gst_vulkan_operation_constructed;
gobject_class->finalize = gst_vulkan_operation_finalize;
g_properties[PROP_COMMAND_POOL] =
g_param_spec_object ("command-pool", "GstVulkanCommandPool",
"Vulkan Command Pool", GST_TYPE_VULKAN_COMMAND_POOL,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class, N_PROPERTIES, g_properties);
}
static void
_dependency_frame_free (gpointer data)
{
GstVulkanDependencyFrame *frame = data;
guint i;
for (i = 0; i < GST_VIDEO_MAX_PLANES && frame->mem[i] != NULL; i++) {
gst_memory_unref (GST_MEMORY_CAST (frame->mem[i]));
frame->mem[i] = NULL;
}
gst_clear_object (&frame->new_queue);
}
static GArray *
_get_dependency_frames (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv = GET_PRIV (self);
if (!priv->deps.frames) {
priv->deps.frames =
g_array_new (FALSE, FALSE, sizeof (GstVulkanDependencyFrame));
g_array_set_clear_func (priv->deps.frames, _dependency_frame_free);
}
return priv->deps.frames;
}
/**
* gst_vulkan_operation_reset:
* @self: a #GstVulkanOperation
*
* Resets the operation to a clean state.
*/
void
gst_vulkan_operation_reset (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv;
g_return_if_fail (GST_IS_VULKAN_OPERATION (self));
priv = GET_PRIV (self);
gst_clear_vulkan_command_buffer (&self->cmd_buf);
gst_vulkan_operation_discard_dependencies (self);
gst_vulkan_trash_list_wait (priv->trash_list, G_MAXUINT64);
gst_vulkan_trash_list_gc (priv->trash_list);
}
/**
* gst_vulkan_operation_begin:
* @self: a #GstVulkanOperation
* @error: a #GError
*
* See also: gst_vulkan_operation_end() and gst_vulkan_operation_reset()
*
* Attempts to set the operation ready to work. It instantiates the common
* command buffer in @self and calls vkBeginCommandBuffer.
*
* After calling this function you can register commands in the command buffer,
* and finally call gst_vulkan_operation_end(). gst_vulkan_operation_reset() is
* called internally if something failed.
*
* Returns: whether the operation started. It might fill @error.
*/
gboolean
gst_vulkan_operation_begin (GstVulkanOperation * self, GError ** error)
{
GstVulkanOperationPrivate *priv;
VkCommandBufferBeginInfo cmd_buf_info = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
};
VkResult err;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
GST_OBJECT_LOCK (self);
if (self->cmd_buf) {
GST_OBJECT_UNLOCK (self);
return TRUE;
}
if (!(self->cmd_buf = gst_vulkan_command_pool_create (priv->cmd_pool, error))) {
GST_OBJECT_UNLOCK (self);
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_INITIALIZATION_FAILED,
"Instantiate of command buffer failed");
return FALSE;
}
GST_OBJECT_UNLOCK (self);
gst_vulkan_command_buffer_lock (self->cmd_buf);
err = vkBeginCommandBuffer (self->cmd_buf->cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, error, "vkBeginCommandBuffer") < 0)
goto error;
if (priv->query_pool)
vkCmdResetQueryPool (self->cmd_buf->cmd, priv->query_pool, 0, 1);
gst_vulkan_command_buffer_unlock (self->cmd_buf);
return TRUE;
error:
{
gst_vulkan_command_buffer_unlock (self->cmd_buf);
gst_vulkan_operation_reset (self);
return FALSE;
}
}
static gboolean
gst_vulkan_operation_submit2 (GstVulkanOperation * self, GstVulkanFence * fence,
GError ** error)
{
#if defined(VK_KHR_synchronization2)
GstVulkanOperationPrivate *priv = GET_PRIV (self);
VkCommandBufferSubmitInfoKHR cmd_buf_info;
VkSubmitInfo2KHR submit_info;
VkResult err;
GST_OBJECT_LOCK (self);
/* *INDENT-OFF* */
cmd_buf_info = (VkCommandBufferSubmitInfoKHR) {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_SUBMIT_INFO_KHR,
.commandBuffer = self->cmd_buf->cmd,
};
submit_info = (VkSubmitInfo2KHR) {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO_2_KHR,
.pCommandBufferInfos = &cmd_buf_info,
.commandBufferInfoCount = 1,
.pWaitSemaphoreInfos = priv->deps.wait_semaphores ?
(const VkSemaphoreSubmitInfoKHR *) priv->deps.wait_semaphores->data : NULL,
.waitSemaphoreInfoCount = priv->deps.wait_semaphores ?
priv->deps.wait_semaphores->len : 0,
.pSignalSemaphoreInfos = priv->deps.signal_semaphores ?
(const VkSemaphoreSubmitInfoKHR *) priv->deps.signal_semaphores->data : NULL,
.signalSemaphoreInfoCount = priv->deps.signal_semaphores ?
priv->deps.signal_semaphores->len : 0,
};
/* *INDENT-ON* */
gst_vulkan_queue_submit_lock (priv->cmd_pool->queue);
err = priv->QueueSubmit2 (priv->cmd_pool->queue->queue, 1, &submit_info,
GST_VULKAN_FENCE_FENCE (fence));
gst_vulkan_queue_submit_unlock (priv->cmd_pool->queue);
GST_OBJECT_UNLOCK (self);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit2KHR") < 0)
goto error;
return TRUE;
error:
#endif
return FALSE;
}
static gboolean
gst_vulkan_operation_submit1 (GstVulkanOperation * self, GstVulkanFence * fence,
GError ** error)
{
GstVulkanOperationPrivate *priv = GET_PRIV (self);
#if defined(VK_KHR_timeline_semaphore)
VkTimelineSemaphoreSubmitInfoKHR semaphore_submit_info;
#endif
gpointer pnext = NULL;
VkSubmitInfo submit_info;
VkResult err;
GST_OBJECT_LOCK (self);
/* *INDENT-OFF* */
#if defined(VK_KHR_timeline_semaphore)
if (priv->has_timeline) {
semaphore_submit_info = (VkTimelineSemaphoreSubmitInfoKHR) {
.sType = VK_STRUCTURE_TYPE_TIMELINE_SEMAPHORE_SUBMIT_INFO_KHR,
.waitSemaphoreValueCount = priv->deps.wait_semaphore_values ?
priv->deps.wait_semaphore_values->len : 0,
.pWaitSemaphoreValues = priv->deps.wait_semaphore_values ?
(const guint64 *) priv->deps.wait_semaphore_values->data : NULL,
.signalSemaphoreValueCount = priv->deps.signal_semaphore_values ?
priv->deps.signal_semaphore_values->len : 0,
.pSignalSemaphoreValues = priv->deps.signal_semaphore_values ?
(const guint64 *) priv->deps.signal_semaphore_values->data : NULL,
};
pnext = &semaphore_submit_info;
}
#endif
submit_info = (VkSubmitInfo) {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = pnext,
.commandBufferCount = 1,
.pCommandBuffers = &self->cmd_buf->cmd,
.pWaitSemaphores = priv->deps.wait_semaphores ?
(const VkSemaphore *) priv->deps.wait_semaphores->data : NULL,
.waitSemaphoreCount = priv->deps.wait_semaphores ?
priv->deps.wait_semaphores->len : 0,
.pSignalSemaphores = priv->deps.signal_semaphores ?
(const VkSemaphore *) priv->deps.signal_semaphores->data : NULL,
.signalSemaphoreCount = priv->deps.signal_semaphores ?
priv->deps.signal_semaphores->len : 0,
.pWaitDstStageMask = priv->deps.wait_dst_stage_mask ?
(const VkPipelineStageFlags *)
priv->deps.wait_dst_stage_mask->data : NULL,
};
/* *INDENT-ON* */
gst_vulkan_queue_submit_lock (priv->cmd_pool->queue);
err = vkQueueSubmit (priv->cmd_pool->queue->queue, 1, &submit_info,
GST_VULKAN_FENCE_FENCE (fence));
gst_vulkan_queue_submit_unlock (priv->cmd_pool->queue);
GST_OBJECT_UNLOCK (self);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0)
return FALSE;
return TRUE;
}
/**
* gst_vulkan_operation_end:
* @self: a #GstVulkanOperation
* @error: a #GError
*
* See also: gst_vulkan_operation_begin() and gst_vulkan_operation_reset()
*
* It calls vkEndCommandBuffer, and later either vkQueueSubmit or
* vkQueueSubmit2KHR filling up the semaphores from images declared as
* dependencies.
*
* You have called gst_vulkan_operation_begin() before.
* gst_vulkan_operation_reset() is called internally if something fails
*
* Returns: whether the operation failed. It might fill @error.
*/
gboolean
gst_vulkan_operation_end (GstVulkanOperation * self, GError ** error)
{
GstVulkanOperationPrivate *priv;
GstVulkanFence *fence;
GstVulkanDevice *device;
VkResult err;
guint i, j;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
if (!self->cmd_buf) {
GST_INFO_OBJECT (self, "Cannot end operation without begin it");
return FALSE;
}
priv = GET_PRIV (self);
device = priv->cmd_pool->queue->device;
fence = gst_vulkan_device_create_fence (device, error);
if (!fence)
return FALSE;
gst_vulkan_command_buffer_lock (self->cmd_buf);
err = vkEndCommandBuffer (self->cmd_buf->cmd);
gst_vulkan_command_buffer_unlock (self->cmd_buf);
if (gst_vulkan_error_to_g_error (err, error, "vkEndCommandBuffer") < 0)
return FALSE;
if (priv->has_sync2) {
if (!gst_vulkan_operation_submit2 (self, fence, error))
goto bail;
} else if (!gst_vulkan_operation_submit1 (self, fence, error))
goto bail;
gst_vulkan_trash_list_add (priv->trash_list,
gst_vulkan_trash_list_acquire (priv->trash_list, fence,
gst_vulkan_trash_mini_object_unref,
GST_MINI_OBJECT_CAST (self->cmd_buf)));
gst_vulkan_fence_unref (fence);
gst_vulkan_trash_list_gc (priv->trash_list);
GST_OBJECT_LOCK (self);
for (i = 0; priv->deps.frames && i < priv->deps.frames->len; i++) {
GstVulkanDependencyFrame *frame =
&g_array_index (priv->deps.frames, GstVulkanDependencyFrame, i);
for (j = 0; j < GST_VIDEO_MAX_PLANES && frame->mem[j] != NULL; j++) {
if (frame->updated) {
frame->mem[j]->barrier.parent.pipeline_stages = frame->dst_stage;
frame->mem[j]->barrier.parent.access_flags = frame->new_access;
frame->mem[j]->barrier.parent.queue = frame->new_queue;
frame->mem[j]->barrier.image_layout = frame->new_layout;
}
if (frame->semaphored)
frame->mem[j]->barrier.parent.semaphore_value++;
}
frame->updated = FALSE;
frame->semaphored = FALSE;
}
g_clear_pointer (&priv->barriers, g_array_unref);
self->cmd_buf = NULL;
priv->op_submitted = TRUE;
GST_OBJECT_UNLOCK (self);
gst_vulkan_operation_discard_dependencies (self);
return TRUE;
bail:
gst_vulkan_fence_unref (fence);
gst_vulkan_operation_reset (self);
return FALSE;
}
/**
* gst_vulkan_operation_wait:
* @self: a #GstVulkanOperation
*
* Waits for the operation's fence to signal.
*
* Returns: whether the operation succeed.
*/
gboolean
gst_vulkan_operation_wait (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv;
gboolean ret;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
ret = gst_vulkan_trash_list_wait (priv->trash_list, G_MAXUINT64);
return ret;
}
static gboolean
_dep_has_buffer (GstVulkanDependencyFrame * dep, GstBuffer * buffer)
{
guint i, n_mems;
GstMemory *mem;
n_mems = gst_buffer_n_memory (buffer);
g_assert (n_mems <= GST_VIDEO_MAX_PLANES);
for (i = 0; i < n_mems; i++) {
mem = gst_buffer_peek_memory (buffer, i);
if (!(mem && gst_is_vulkan_image_memory (mem))) {
GST_ERROR ("Memory %" GST_PTR_FORMAT " is not a Vulkan Image", mem);
return FALSE;
}
if (dep->mem[i] != (GstVulkanImageMemory *) mem)
return FALSE;
}
return TRUE;
}
static void
_dep_set_buffer (GstVulkanDependencyFrame * dep, GstBuffer * buffer)
{
guint i, n_mems;
GstMemory *mem;
n_mems = gst_buffer_n_memory (buffer);
g_assert (n_mems <= GST_VIDEO_MAX_PLANES);
for (i = 0; i < n_mems; i++) {
mem = gst_buffer_peek_memory (buffer, i);
if (!(mem && gst_is_vulkan_image_memory (mem))) {
GST_ERROR ("Memory %" GST_PTR_FORMAT " is not a Vulkan Image", mem);
return;
}
dep->mem[i] = (GstVulkanImageMemory *) gst_memory_ref (mem);
}
for (; i < GST_VIDEO_MAX_PLANES; i++)
dep->mem[i] = NULL;
}
static void
gst_vulkan_operation_update_frame_unlocked (GstVulkanOperation * self,
GstBuffer * frame, guint64 dst_stage, guint64 new_access,
VkImageLayout new_layout, GstVulkanQueue * new_queue)
{
GArray *frames;
guint i;
GstVulkanDependencyFrame *dep_frame = NULL;
frames = _get_dependency_frames (self);
for (i = 0; i < frames->len; i++) {
dep_frame = &g_array_index (frames, GstVulkanDependencyFrame, i);
if (_dep_has_buffer (dep_frame, frame))
break;
}
if (i >= frames->len) {
GstVulkanDependencyFrame dframe;
_dep_set_buffer (&dframe, frame);
g_array_append_val (frames, dframe);
dep_frame =
&g_array_index (frames, GstVulkanDependencyFrame, frames->len - 1);
}
dep_frame->updated = TRUE;
dep_frame->dst_stage = dst_stage;
dep_frame->new_access = new_access;
dep_frame->new_layout = new_layout;
dep_frame->new_queue = new_queue ? gst_object_ref (new_queue) : NULL;
}
/**
* gst_vulkan_operation_update_frame:
* @self: a #GstVulkanOperation
* @frame: a #GstBuffer to update after submit
* @dst_stage: destination pipeline stage (VkPipelineStageFlags or
* VkPipelineStageFlags2)
* @new_access: the new access flags (VkAccessFlags2 or VkAccessFlags)
* @new_layout: the new VkImageLayout
* @new_queue: (nullable): destination #GstVulkanQueue for a transfer of @frame
* ownership
*
* Add or update the internal list of the future state of @frame. This state
* will be set after gst_vulkan_operation_end().
*
* This method is useful when new barriers are added to the array without using
* gst_vulkan_operation_add_frame_barrier().
*/
void
gst_vulkan_operation_update_frame (GstVulkanOperation * self, GstBuffer * frame,
guint64 dst_stage, guint64 new_access, VkImageLayout new_layout,
GstVulkanQueue * new_queue)
{
g_return_if_fail (GST_IS_VULKAN_OPERATION (self));
GST_OBJECT_LOCK (self);
gst_vulkan_operation_update_frame_unlocked (self, frame, dst_stage,
new_access, new_layout, new_queue);
GST_OBJECT_UNLOCK (self);
}
static GArray *
_new_image_barriers (GstVulkanOperation * self)
{
#if defined(VK_KHR_synchronization2)
GstVulkanOperationPrivate *priv;
priv = GET_PRIV (self);
if (priv->has_sync2) {
return g_array_sized_new (FALSE, FALSE, sizeof (VkImageMemoryBarrier2KHR),
GST_VIDEO_MAX_PLANES);
}
#endif
return g_array_sized_new (FALSE, FALSE, sizeof (VkImageMemoryBarrier),
GST_VIDEO_MAX_PLANES);
}
static GArray *
_get_image_barriers_unlocked (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv;
priv = GET_PRIV (self);
if (priv->barriers)
return priv->barriers;
priv->barriers = _new_image_barriers (self);
return priv->barriers;
}
/**
* gst_vulkan_operation_retrieve_image_barriers:
* @self: a #GstVulkanOperation
*
* Retrieves a copy of the current defined barriers internally, which will be
* used by vkCmdPipelineBarrier or vkCmdPipelineBarrier2KHR by the API user.
*
* The element type of the array might be, depending on if synchronization2
* extension is used, either VkImageMemoryBarrier or VkImageMemoryBarrier2KHR.
*
* Returns: (transfer full): Current barriers array. Call g_array_unref() after
* the operation is using.
*/
GArray *
gst_vulkan_operation_retrieve_image_barriers (GstVulkanOperation * self)
{
GArray *barriers;
GST_OBJECT_LOCK (self);
barriers = g_array_copy (_get_image_barriers_unlocked (self));
GST_OBJECT_UNLOCK (self);
return barriers;
}
/**
* gst_vulkan_operation_new_extra_image_barriers:
* @self: a #GstVulkanOperation
*
* See also: gst_vulkan_operation_use_sync2(),
* gst_vulkan_operation_add_extra_image_barriers() and
* gst_vulkan_operation_update_frame()
*
* If it's required to add custom image memory barriers this function will
* allocate a new array to append in it the extra image memory barriers to
* handle.
*
* Remember to call gst_vulkan_operation_update_frame() after adding the barrier
* related with that frame.
*
* Returns: (transfer full): A new allocated array of barriers, either
* VkImageMemoryBarrier or VkImageMemoryBarrier2KHR, depending whether
* synchronization2 extension is used.
*/
GArray *
gst_vulkan_operation_new_extra_image_barriers (GstVulkanOperation * self)
{
return _new_image_barriers (self);
}
/**
* gst_vulkan_operation_add_extra_image_barriers:
* @self: a #GstVulkanOperation
* @extra_barriers: a #GArray of extra image memory barriers to handle
*
* See also: gst_vulkan_operation_use_sync2(),
* gst_vulkan_operation_new_extra_image_barriers() and
* gst_vulkan_operation_update_frame()
*
* Any non-repeated image barrier in @extra is appended to the internal barrier
* list.
*
* Remember to call gst_vulkan_operation_update_frame() on those frames with
* images in @extra_barriers.
*/
void
gst_vulkan_operation_add_extra_image_barriers (GstVulkanOperation * self,
GArray * extra_barriers)
{
guint i, j;
GArray *barriers;
gboolean found;
#if defined(VK_KHR_synchronization2)
GstVulkanOperationPrivate *priv;
#endif
g_return_if_fail (GST_IS_VULKAN_OPERATION (self));
#if defined(VK_KHR_synchronization2)
priv = GET_PRIV (self);
#endif
GST_OBJECT_LOCK (self);
barriers = _get_image_barriers_unlocked (self);
#define FIND_BARRIER(Type) G_STMT_START { \
Type *barrier = &g_array_index (barriers, Type, j); \
Type *extra = &g_array_index (extra_barriers, Type, i); \
found = (barrier->image == extra->image); \
} G_STMT_END;
#define APPEND_BARRIER(Type) G_STMT_START { \
Type extra = g_array_index (extra_barriers, Type, i); \
g_array_append_val (barriers, extra); \
} G_STMT_END;
/* if barrier is already there, skip it */
for (i = 0; i < extra_barriers->len; i++) {
found = FALSE;
for (j = 0; !found && j < barriers->len; j++) {
#if defined(VK_KHR_synchronization2)
if (priv->has_sync2) {
FIND_BARRIER (VkImageMemoryBarrier2KHR);
} else
#endif
{
FIND_BARRIER (VkImageMemoryBarrier);
}
}
if (!found) {
#if defined(VK_KHR_synchronization2)
if (priv->has_sync2) {
APPEND_BARRIER (VkImageMemoryBarrier2KHR);
} else
#endif
{
APPEND_BARRIER (VkImageMemoryBarrier);
}
}
}
#undef FIND_BARRIER
#undef APPEND_BARRIER
GST_OBJECT_UNLOCK (self);
}
/**
* gst_vulkan_operation_add_frame_barrier:
* @self: a #GstVulkanOperation
* @frame: a Vulkan Image #GstBuffer
* @dst_stage: destination pipeline stage (VkPipelineStageFlags or
* VkPipelineStageFlags2)
* @new_access: the new access flags (VkAccessFlags2 or VkAccessFlags)
* @new_layout: the new VkImageLayout
* @new_queue: (nullable): destination #GstVulkanQueue for a transfer of @frame
* ownership
*
* See also: gst_vulkan_operation_update_frame()
*
* Adds an image memory barrier per memory in @frame with its future state. And
* it updates the @frame barrier state by calling internally
* gst_vulkan_operation_update_frame().
*
* Returns: whether the @frame barriers were appended
*/
gboolean
gst_vulkan_operation_add_frame_barrier (GstVulkanOperation * self,
GstBuffer * frame, guint64 dst_stage, guint64 new_access,
VkImageLayout new_layout, GstVulkanQueue * new_queue)
{
guint i, n_mems;
#if defined(VK_KHR_synchronization2)
GstVulkanOperationPrivate *priv;
#endif
GstVulkanDependencyFrame *dep_frame = NULL;
GArray *frames, *barriers;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
g_return_val_if_fail (GST_IS_BUFFER (frame), FALSE);
#if defined(VK_KHR_synchronization2)
priv = GET_PRIV (self);
#endif
n_mems = gst_buffer_n_memory (frame);
GST_OBJECT_LOCK (self);
barriers = _get_image_barriers_unlocked (self);
frames = _get_dependency_frames (self);
for (i = 0; i < frames->len; i++) {
dep_frame = &g_array_index (frames, GstVulkanDependencyFrame, i);
if (_dep_has_buffer (dep_frame, frame))
break;
}
if (i >= frames->len || !(dep_frame && dep_frame->updated))
dep_frame = NULL;
for (i = 0; i < n_mems; i++) {
guint32 queue_familiy_index = VK_QUEUE_FAMILY_IGNORED;
GstVulkanImageMemory *vkmem;
GstMemory *mem = gst_buffer_peek_memory (frame, i);
if (!gst_is_vulkan_image_memory (mem)) {
GST_OBJECT_UNLOCK (self);
GST_ERROR_OBJECT (self, "Memory %" GST_PTR_FORMAT
" is not a Vulkan Image", mem);
return FALSE;
}
vkmem = (GstVulkanImageMemory *) mem;
if (dep_frame && dep_frame->new_queue)
queue_familiy_index = dep_frame->new_queue->family;
else if (vkmem->barrier.parent.queue)
queue_familiy_index = vkmem->barrier.parent.queue->family;
/* *INDENT-OFF* */
#if defined(VK_KHR_synchronization2)
if (priv->has_sync2) {
VkImageMemoryBarrier2KHR barrier2 = {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2_KHR,
.pNext = NULL,
.srcStageMask = dep_frame ?
dep_frame->dst_stage : vkmem->barrier.parent.pipeline_stages,
.dstStageMask = dst_stage,
.srcAccessMask = dep_frame ?
dep_frame->new_access : vkmem->barrier.parent.access_flags,
.dstAccessMask = new_access,
.oldLayout = dep_frame ?
dep_frame->new_layout : vkmem->barrier.image_layout,
.newLayout = new_layout,
.srcQueueFamilyIndex = queue_familiy_index,
.dstQueueFamilyIndex = new_queue ?
new_queue->family : VK_QUEUE_FAMILY_IGNORED,
.image = vkmem->image,
.subresourceRange = vkmem->barrier.subresource_range,
};
g_array_append_val (barriers, barrier2);
} else
#endif
{
VkImageMemoryBarrier barrier;
/* this might overflow */
if (new_access > VK_ACCESS_FLAG_BITS_MAX_ENUM) {
GST_OBJECT_UNLOCK (self);
GST_ERROR_OBJECT (self, "Invalid new access value: %" G_GUINT64_FORMAT,
new_access);
return FALSE;
}
barrier = (VkImageMemoryBarrier) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.pNext = NULL,
.srcAccessMask = vkmem->barrier.parent.access_flags,
.dstAccessMask = (VkAccessFlags) new_access,
.oldLayout = vkmem->barrier.image_layout,
.newLayout = new_layout,
.srcQueueFamilyIndex = queue_familiy_index,
.dstQueueFamilyIndex = new_queue ?
new_queue->family : VK_QUEUE_FAMILY_IGNORED,
.image = vkmem->image,
.subresourceRange = vkmem->barrier.subresource_range,
};
g_array_append_val (barriers, barrier);
}
/* *INDENT-ON* */
}
gst_vulkan_operation_update_frame_unlocked (self, frame, dst_stage,
new_access, new_layout, new_queue);
GST_OBJECT_UNLOCK (self);
return TRUE;
}
/**
* gst_vulkan_operation_add_dependency_frame:
* @self: a #GstVulkanOperation
* @frame: a Vulkan Image #GstBuffer
* @wait_stage: pipeline stage to wait (VkPipelineStageFlags or
* VkPipelineStageFlags2)
* @signal_stage: pipeline stage to signal (VkPipelineStageFlags or
* VkPipelineStageFlags2)
*
* Add @frame as an operation dependency by adding the timeline semaphores in
* each memory of @frame into either the wait semaphore array. The signal array
* hold the same semaphores but increasing their current value.
*
* Returns: whether the @frame was added as dependency.
*/
gboolean
gst_vulkan_operation_add_dependency_frame (GstVulkanOperation * self,
GstBuffer * frame, guint64 wait_stage, guint64 signal_stage)
{
GstVulkanOperationPrivate *priv;
guint i, n_mems;
GArray *frames;
GstVulkanDependencyFrame *dep_frame = NULL;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
g_return_val_if_fail (GST_IS_BUFFER (frame), FALSE);
#if defined(VK_KHR_timeline_semaphore)
priv = GET_PRIV (self);
GST_OBJECT_LOCK (self);
frames = _get_dependency_frames (self);
for (i = 0; i < frames->len; i++) {
dep_frame = &g_array_index (frames, GstVulkanDependencyFrame, i);
if (_dep_has_buffer (dep_frame, frame) && dep_frame->semaphored) {
GST_OBJECT_UNLOCK (self);
return TRUE;
}
}
if (i >= frames->len) {
GstVulkanDependencyFrame dframe = {
.semaphored = TRUE,
};
_dep_set_buffer (&dframe, frame);
g_array_append_val (frames, dframe);
} else if (dep_frame) {
dep_frame->semaphored = TRUE;
}
#if defined(VK_KHR_synchronization2)
if (priv->has_sync2 && priv->has_timeline) {
if (!priv->deps.signal_semaphores) {
priv->deps.signal_semaphores =
g_array_new (FALSE, FALSE, sizeof (VkSemaphoreSubmitInfoKHR));
}
if (!priv->deps.wait_semaphores) {
priv->deps.wait_semaphores =
g_array_new (FALSE, FALSE, sizeof (VkSemaphoreSubmitInfoKHR));
}
n_mems = gst_buffer_n_memory (frame);
for (i = 0; i < n_mems; i++) {
GstVulkanImageMemory *vkmem;
GstMemory *mem = gst_buffer_peek_memory (frame, i);
if (!gst_is_vulkan_image_memory (mem)) {
GST_OBJECT_UNLOCK (self);
GST_ERROR_OBJECT (self, "Memory %" GST_PTR_FORMAT
" is not a Vulkan Image", mem);
return FALSE;
}
vkmem = (GstVulkanImageMemory *) mem;
if (vkmem->barrier.parent.semaphore == VK_NULL_HANDLE)
break;
/* *INDENT-OFF* */
g_array_append_vals (priv->deps.wait_semaphores, &(VkSemaphoreSubmitInfoKHR) {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO_KHR,
.semaphore = vkmem->barrier.parent.semaphore,
.value = vkmem->barrier.parent.semaphore_value,
.stageMask = wait_stage,
}, 1);
g_array_append_vals (priv->deps.signal_semaphores, &(VkSemaphoreSubmitInfoKHR) {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO_KHR,
.semaphore = vkmem->barrier.parent.semaphore,
.value = vkmem->barrier.parent.semaphore_value + 1,
.stageMask = signal_stage,
}, 1);
/* *INDENT-ON* */
}
GST_OBJECT_UNLOCK (self);
return TRUE;
}
#endif /* synchronization2 */
if (priv->has_timeline && wait_stage <= G_MAXUINT32) {
if (!priv->deps.signal_semaphores) {
priv->deps.signal_semaphores =
g_array_new (FALSE, FALSE, sizeof (VkSemaphore));
}
if (!priv->deps.wait_semaphores) {
priv->deps.wait_semaphores =
g_array_new (FALSE, FALSE, sizeof (VkSemaphore));
}
if (!priv->deps.wait_dst_stage_mask) {
priv->deps.wait_dst_stage_mask =
g_array_new (FALSE, FALSE, sizeof (VkPipelineStageFlags));
}
if (!priv->deps.wait_semaphore_values) {
priv->deps.wait_semaphore_values =
g_array_new (FALSE, FALSE, sizeof (guint64));
}
if (!priv->deps.signal_semaphore_values) {
priv->deps.signal_semaphore_values =
g_array_new (FALSE, FALSE, sizeof (guint64));
}
n_mems = gst_buffer_n_memory (frame);
for (i = 0; i < n_mems; i++) {
GstVulkanImageMemory *vkmem;
GstMemory *mem = gst_buffer_peek_memory (frame, i);
VkPipelineStageFlags wait_stage1 = (VkPipelineStageFlags) wait_stage;
guint64 signal_value;
if (!gst_is_vulkan_image_memory (mem)) {
GST_OBJECT_UNLOCK (self);
GST_ERROR_OBJECT (self, "Memory %" GST_PTR_FORMAT
" is not a Vulkan Image", mem);
return FALSE;
}
vkmem = (GstVulkanImageMemory *) mem;
if (vkmem->barrier.parent.semaphore == VK_NULL_HANDLE)
break;
g_array_append_val (priv->deps.wait_semaphores,
vkmem->barrier.parent.semaphore);
g_array_append_val (priv->deps.signal_semaphores,
vkmem->barrier.parent.semaphore);
g_array_append_val (priv->deps.wait_semaphore_values,
vkmem->barrier.parent.semaphore_value);
signal_value = vkmem->barrier.parent.semaphore_value + 1;
g_array_append_val (priv->deps.signal_semaphore_values, signal_value);
g_array_append_val (priv->deps.wait_dst_stage_mask, wait_stage1);
}
GST_OBJECT_UNLOCK (self);
return TRUE;
}
GST_OBJECT_UNLOCK (self);
#endif /* timeline semaphore */
return TRUE;
}
/**
* gst_vulkan_operation_discard_dependencies:
* @self: a #GstVulkanOperation
*
* Discards barriers, and all the semaphore arrays populated by
* gst_vulkan_operation_add_dependency_frame().
*/
void
gst_vulkan_operation_discard_dependencies (GstVulkanOperation * self)
{
GstVulkanOperationPrivate *priv;
g_return_if_fail (GST_IS_VULKAN_OPERATION (self));
priv = GET_PRIV (self);
GST_OBJECT_LOCK (self);
g_clear_pointer (&priv->barriers, g_array_unref);
g_clear_pointer (&priv->deps.frames, g_array_unref);
g_clear_pointer (&priv->deps.signal_semaphores, g_array_unref);
g_clear_pointer (&priv->deps.wait_semaphores, g_array_unref);
g_clear_pointer (&priv->deps.wait_dst_stage_mask, g_array_unref);
g_clear_pointer (&priv->deps.wait_semaphore_values, g_array_unref);
g_clear_pointer (&priv->deps.signal_semaphore_values, g_array_unref);
GST_OBJECT_UNLOCK (self);
}
/**
* gst_vulkan_operation_enable_query:
* @self: a #GstVulkanOperation
* @query_type: (type guint32): the VkQueryType to enable
* @n_queries: number of queries to enable
* @pnext: the structure pointer to use as pNext
* @error: a #GError
*
* Tries to enable the query pool for the current operation.
*
* Returns: whether the query pool was enabled. It might populate @error in case
* of error.
*
* Since: 1.24
*/
gboolean
gst_vulkan_operation_enable_query (GstVulkanOperation * self,
VkQueryType query_type, guint n_queries, gpointer pnext, GError ** error)
{
GstVulkanOperationPrivate *priv;
GstVulkanPhysicalDevice *device;
guint32 queue_family;
VkQueryPoolCreateInfo query_pool_info = {
.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO,
.pNext = pnext,
.queryType = query_type,
.queryCount = n_queries,
};
VkResult res;
size_t stride = 0;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
g_return_val_if_fail (n_queries > 0, FALSE);
priv = GET_PRIV (self);
if (priv->query_pool)
return TRUE;
queue_family = priv->cmd_pool->queue->family;
device = priv->cmd_pool->queue->device->physical_device;
if (!device->queue_family_ops[queue_family].query) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_FEATURE_NOT_PRESENT,
"Queue %" GST_PTR_FORMAT " doesn't support query operations",
priv->cmd_pool->queue);
return FALSE;
}
res = vkCreateQueryPool (priv->cmd_pool->queue->device->device,
&query_pool_info, NULL, &priv->query_pool);
if (gst_vulkan_error_to_g_error (res, error,
"vkCreateQueryPool") != VK_SUCCESS)
return FALSE;
priv->query_type = query_type;
priv->n_queries = n_queries;
/* @TODO:
* + support 64bit
* + result support other structures besides a guint32 array
*/
switch (query_type) {
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
case VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR:
if (priv->has_video)
stride = sizeof (guint32);
break;
#if GST_VULKAN_HAVE_VIDEO_ENCODERS
case VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR:
if (priv->has_video)
stride = sizeof (GstVulkanEncodeQueryResult);
break;
#endif
#endif
default:
break;
}
priv->query_data_size = n_queries * stride;
priv->query_data_stride = stride;
priv->query_data = g_malloc0 (priv->query_data_size);
return TRUE;
}
/**
* gst_vulkan_operation_get_query:
* @self: a #GstVulkanOperation
* @data: (out callee-allocates) (transfer none): result of all queries
* @error: a #GError
*
* Gets the latest operation results of all the queries in @data. API users have
* to parse the binary array of @data according of their needs (usually is a
* guint32 array of size of n_query).
*
* Don't free @data.
*
* Returns: whether a status was fetched. If not, it might populate @error
*/
gboolean
gst_vulkan_operation_get_query (GstVulkanOperation * self, gpointer * result,
GError ** error)
{
GstVulkanOperationPrivate *priv;
VkResult res;
VkQueryResultFlagBits flags = 0;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
if (!priv->query_pool || !priv->query_data || !priv->op_submitted)
return TRUE;
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
if (priv->has_video
&& (priv->query_type == VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR
#if GST_VULKAN_HAVE_VIDEO_ENCODERS
|| priv->query_type == VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR
#endif
)) {
flags |= VK_QUERY_RESULT_WITH_STATUS_BIT_KHR;
}
#endif
/* grab the results of all the queries */
res = vkGetQueryPoolResults (priv->cmd_pool->queue->device->device,
priv->query_pool, 0, priv->n_queries, priv->query_data_size,
priv->query_data, priv->query_data_stride, flags);
if (res != VK_SUCCESS && res != VK_NOT_READY) {
gst_vulkan_error_to_g_error (res, error, "vkGetQueryPoolResults");
return FALSE;
}
if (result)
*result = priv->query_data;
return TRUE;
}
/**
* gst_vulkan_operation_begin_query:
* @self: a #GstVulkanOperation
*
* Begins a query operation in the current command buffer.
*
* Returns: whether the begin command was set
*/
gboolean
gst_vulkan_operation_begin_query (GstVulkanOperation * self, guint32 id)
{
GstVulkanOperationPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
if (!priv->query_pool)
return TRUE;
if (!self->cmd_buf) {
GST_INFO_OBJECT (self, "Cannot begin query without begin operation");
return FALSE;
}
gst_vulkan_command_buffer_lock (self->cmd_buf);
vkCmdBeginQuery (self->cmd_buf->cmd, priv->query_pool, id, 0);
gst_vulkan_command_buffer_unlock (self->cmd_buf);
return TRUE;
}
/**
* gst_vulkan_operation_end_query:
* @self: a #GstVulkanOperation
*
* Ends a query operation in the current command buffer.
*
* Returns: whether the end command was set
*/
gboolean
gst_vulkan_operation_end_query (GstVulkanOperation * self, guint32 id)
{
GstVulkanOperationPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
if (!priv->query_pool)
return TRUE;
if (!self->cmd_buf) {
GST_INFO_OBJECT (self, "Cannot end query without begin operation");
return FALSE;
}
gst_vulkan_command_buffer_lock (self->cmd_buf);
vkCmdEndQuery (self->cmd_buf->cmd, priv->query_pool, id);
gst_vulkan_command_buffer_unlock (self->cmd_buf);
return TRUE;
}
/**
* gst_vulkan_operation_use_sync2:
* @self: a #GstVulkanOperation
*
* Returns: whether the operations are using synchronization2 extension.
*/
gboolean
gst_vulkan_operation_use_sync2 (GstVulkanOperation * self)
{
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
return GET_PRIV (self)->has_sync2;
}
/**
* gst_vulkan_operation_pipeline_barrier2:
* @self: a #GstVulkanOperation
* @dependency_info: a pointer to VkDependencyInfo
*
* It's a wrapper to vkCmdPipelineBarrier2{KHR} if it's available.
*
* Returns: %TRUE if vkCmdPipelineBarrier2{KHR} it's available. %FALSE,
* otherwise.
*/
gboolean
gst_vulkan_operation_pipeline_barrier2 (GstVulkanOperation * self,
gpointer dependency_info)
{
#if defined(VK_KHR_synchronization2)
GstVulkanOperationPrivate *priv;
g_return_val_if_fail (GST_IS_VULKAN_OPERATION (self), FALSE);
priv = GET_PRIV (self);
if (priv->has_sync2) {
VkDependencyInfoKHR *info = dependency_info;
g_return_val_if_fail (info
&& info->sType == VK_STRUCTURE_TYPE_DEPENDENCY_INFO_KHR, FALSE);
if (!self->cmd_buf) {
GST_INFO_OBJECT (self, "Cannot record a barrier without begin operation");
return FALSE;
}
gst_vulkan_command_buffer_lock (self->cmd_buf);
priv->CmdPipelineBarrier2 (self->cmd_buf->cmd, info);
gst_vulkan_command_buffer_unlock (self->cmd_buf);
return TRUE;
}
#endif
return FALSE;
}
/**
* gst_vulkan_operation_new:
* @cmd_pool: a #GstVulkanCommandPool
*
* Returns: (transfer full): a newly allocated #GstVulkanOperation
*/
GstVulkanOperation *
gst_vulkan_operation_new (GstVulkanCommandPool * cmd_pool)
{
GstVulkanOperation *self;
g_return_val_if_fail (GST_IS_VULKAN_COMMAND_POOL (cmd_pool), NULL);
self = g_object_new (GST_TYPE_VULKAN_OPERATION, "command-pool", cmd_pool,
NULL);
gst_object_ref_sink (self);
return self;
}