gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c
Víctor Manuel Jáquez Leal 28e16f897e vkimagebufferpool: fix documentation grammar
Original-patch-by: Matthew Waters <matthew@centricular.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7288>
2024-08-01 10:09:34 +00:00

693 lines
21 KiB
C

/*
* GStreamer
* Copyright (C) 2016 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvkimagebufferpool.h"
/**
* SECTION:vkimagebufferpool
* @title: GstVulkanImageBufferPool
* @short_description: buffer pool for #GstVulkanImageMemory objects
* @see_also: #GstBufferPool, #GstVulkanImageMemory
*
* a #GstVulkanImageBufferPool is an object that allocates buffers with #GstVulkanImageMemory
*
* A #GstVulkanImageBufferPool is created with gst_vulkan_image_buffer_pool_new()
*/
const static VkImageUsageFlags default_usage =
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT
| VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT
| VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
/* bufferpool */
struct _GstVulkanImageBufferPoolPrivate
{
GstCaps *caps;
gboolean raw_caps;
GstVideoInfo v_info;
VkImageUsageFlags usage;
VkImageCreateFlags img_flags;
VkMemoryPropertyFlags mem_props;
VkImageLayout initial_layout;
guint64 initial_access;
VkFormat vk_fmts[GST_VIDEO_MAX_PLANES];
int n_imgs;
guint32 n_layers;
guint32 n_profiles;
GstVulkanVideoProfile profiles[2];
GstVulkanOperation *exec;
};
static void gst_vulkan_image_buffer_pool_finalize (GObject * object);
GST_DEBUG_CATEGORY_STATIC (GST_CAT_VULKAN_IMAGE_BUFFER_POOL);
#define GST_CAT_DEFAULT GST_CAT_VULKAN_IMAGE_BUFFER_POOL
#define GET_PRIV(pool) gst_vulkan_image_buffer_pool_get_instance_private (pool)
#define gst_vulkan_image_buffer_pool_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanImageBufferPool, gst_vulkan_image_buffer_pool,
GST_TYPE_BUFFER_POOL, G_ADD_PRIVATE (GstVulkanImageBufferPool)
GST_DEBUG_CATEGORY_INIT (GST_CAT_VULKAN_IMAGE_BUFFER_POOL,
"vulkanimagebufferpool", 0, "Vulkan Image Buffer Pool"));
/**
* gst_vulkan_image_buffer_pool_config_set_allocation_params:
* @config: the #GstStructure with the pool's configuration.
* @usage: The Vulkan image usage flags.
* @mem_properties: Vulkan memory property flags.
* @initial_layout: Initial Vulkan image layout.
* @initial_access: Access flags for the layout transition if @initial_layout is
* not VK_IMAGE_LAYOUT_UNDEFINED or VK_IMAGE_LAYOUT_PREINITIALIZED.
*
* Sets the @usage and @mem_properties, @initial_layout and @initial_access of
* the images to setup.
*
* If @initial_access is VK_IMAGE_LAYOUT_UNDEFINED or
* VK_IMAGE_LAYOUT_PREINITIALIZED, the image crated by this pool has not been
* initialized to a particular layout
*
* Since: 1.24
*/
void
gst_vulkan_image_buffer_pool_config_set_allocation_params (GstStructure *
config, VkImageUsageFlags usage, VkMemoryPropertyFlags mem_properties,
VkImageLayout initial_layout, guint64 initial_access)
{
g_return_if_fail (GST_IS_STRUCTURE (config));
/* assumption: G_TYPE_UINT is compatible with uint32_t (VkFlags) */
gst_structure_set (config, "usage", G_TYPE_UINT, usage, "memory-properties",
G_TYPE_UINT, mem_properties, "initial-layout", G_TYPE_UINT,
initial_layout, "initial-access", G_TYPE_UINT64, initial_access, NULL);
}
/**
* gst_vulkan_image_buffer_pool_config_set_decode_caps:
* @config: the #GstStructure with the pool's configuration.
* @caps: Upstream decode caps.
*
* Decode @caps are used when the buffers are going to be used either as decoded
* dest or DPB images.
*
* Since: 1.24
*/
void
gst_vulkan_image_buffer_pool_config_set_decode_caps (GstStructure * config,
GstCaps * caps)
{
g_return_if_fail (GST_IS_CAPS (caps));
gst_structure_set (config, "decode-caps", GST_TYPE_CAPS, caps, NULL);
}
/**
* gst_vulkan_image_buffer_pool_config_set_encode_caps:
* @config: the #GstStructure with the pool's configuration.
* @caps: Upstream encode caps.
*
* Encode @caps are used when the buffers are going to be used either as encoded
* src or DPB images.
*
* Since: 1.26
*/
void
gst_vulkan_image_buffer_pool_config_set_encode_caps (GstStructure * config,
GstCaps * caps)
{
g_return_if_fail (GST_IS_CAPS (caps));
gst_structure_set (config, "encode-caps", GST_TYPE_CAPS, caps, NULL);
}
/**
* gst_vulkan_image_buffer_pool_config_get_allocation_params:
* @config: the #GstStructure with the pool's configuration.
* @usage: (out) (optional): The Vulkan image usage flags.
* @mem_properties: (out) (optional): Vulkan memory property flags.
* @initial_layout: (out) (optional): Initial Vulkan image layout.
* @initial_access: (out) (optional): Initial Vulkan access flags.
*
* Gets the configuration of the Vulkan image buffer pool.
*
* Since: 1.26
*/
void
gst_vulkan_image_buffer_pool_config_get_allocation_params (GstStructure *
config, VkImageUsageFlags * usage, VkMemoryPropertyFlags * mem_props,
VkImageLayout * initial_layout, guint64 * initial_access)
{
g_return_if_fail (GST_IS_STRUCTURE (config));
if (usage) {
if (!gst_structure_get_uint (config, "usage", usage))
*usage = default_usage;
}
if (mem_props) {
if (!gst_structure_get_uint (config, "memory-properties", mem_props))
*mem_props = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
}
if (initial_layout) {
if (!gst_structure_get_uint (config, "initial-layout", initial_layout))
*initial_layout = VK_IMAGE_LAYOUT_UNDEFINED;
}
if (initial_access) {
if (!gst_structure_get_uint64 (config, "initial-access", initial_access))
*initial_access = 0; /* VK_ACCESS_NONE */
}
}
static inline void
internal_config_get_allocation_params (GstStructure * config,
VkImageUsageFlags * usage, VkMemoryPropertyFlags * mem_props,
VkImageLayout * initial_layout, guint64 * initial_access,
guint32 * n_layers, GstCaps ** decode_caps, GstCaps ** encode_caps)
{
gst_vulkan_image_buffer_pool_config_get_allocation_params (config, usage,
mem_props, initial_layout, initial_access);
if (!gst_structure_get_uint (config, "num-layers", n_layers))
*n_layers = 1;
if (decode_caps)
gst_structure_get (config, "decode-caps", GST_TYPE_CAPS, decode_caps, NULL);
if (encode_caps)
gst_structure_get (config, "encode-caps", GST_TYPE_CAPS, encode_caps, NULL);
}
static gboolean
gst_vulkan_image_buffer_pool_set_config (GstBufferPool * pool,
GstStructure * config)
{
GstVulkanImageBufferPool *vk_pool = GST_VULKAN_IMAGE_BUFFER_POOL_CAST (pool);
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (vk_pool);
VkImageTiling tiling;
VkImageUsageFlags requested_usage;
VkImageCreateInfo image_info;
guint min_buffers, max_buffers;
GstCaps *caps = NULL, *decode_caps = NULL, *encode_caps = NULL;
GstCapsFeatures *features;
gboolean found, no_multiplane, ret = TRUE;
guint i;
if (!gst_buffer_pool_config_get_params (config, &caps, NULL, &min_buffers,
&max_buffers))
goto wrong_config;
if (caps == NULL)
goto no_caps;
/* now parse the caps from the config */
if (!gst_video_info_from_caps (&priv->v_info, caps))
goto wrong_caps;
GST_LOG_OBJECT (pool, "%dx%d, caps %" GST_PTR_FORMAT, priv->v_info.width,
priv->v_info.height, caps);
gst_caps_replace (&priv->caps, caps);
features = gst_caps_get_features (caps, 0);
priv->raw_caps = features == NULL || gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY);
internal_config_get_allocation_params (config, &requested_usage,
&priv->mem_props, &priv->initial_layout, &priv->initial_access,
&priv->n_layers, &decode_caps, &encode_caps);
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
{
guint n = 0;
priv->n_profiles = 0;
if (decode_caps && ((requested_usage
& (VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR
| VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR)) != 0)) {
n++;
if (gst_vulkan_video_profile_from_caps (&priv->profiles[priv->n_profiles],
decode_caps, GST_VULKAN_VIDEO_OPERATION_DECODE))
priv->n_profiles++;
}
gst_clear_caps (&decode_caps);
if (encode_caps && ((requested_usage
& (VK_IMAGE_USAGE_VIDEO_ENCODE_SRC_BIT_KHR
| VK_IMAGE_USAGE_VIDEO_ENCODE_DPB_BIT_KHR)) != 0)) {
n++;
if (gst_vulkan_video_profile_from_caps (&priv->profiles[priv->n_profiles],
encode_caps, GST_VULKAN_VIDEO_OPERATION_ENCODE))
priv->n_profiles++;
}
gst_clear_caps (&encode_caps);
if (priv->n_profiles != n)
goto missing_profile;
}
if (priv->n_profiles > 0) {
no_multiplane = FALSE;
} else
#endif
{
no_multiplane = TRUE;
}
tiling = priv->raw_caps ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
found = gst_vulkan_format_from_video_info_2 (vk_pool->device->physical_device,
&priv->v_info, tiling, no_multiplane, requested_usage, priv->vk_fmts,
&priv->n_imgs, NULL);
if (!found)
goto no_vk_format;
{
gboolean video = FALSE, sampleable;
const GstVulkanFormatMap *vkmap;
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
video = (requested_usage & (VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR
| VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR
| VK_IMAGE_USAGE_VIDEO_ENCODE_SRC_BIT_KHR
| VK_IMAGE_USAGE_VIDEO_ENCODE_DPB_BIT_KHR));
#endif
sampleable = requested_usage &
(VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_STORAGE_BIT);
if (sampleable && !video) {
vkmap = gst_vulkan_format_get_map (GST_VIDEO_INFO_FORMAT (&priv->v_info));
priv->img_flags = VK_IMAGE_CREATE_ALIAS_BIT;
if (GST_VIDEO_INFO_N_PLANES (&priv->v_info) > 1
&& vkmap->vkfrmt != priv->vk_fmts[0]) {
priv->img_flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT
| VK_IMAGE_CREATE_EXTENDED_USAGE_BIT;
}
}
}
/* get the size of the buffer to allocate */
/* *INDENT-OFF* */
image_info = (VkImageCreateInfo) {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.pNext = NULL,
.flags = priv->img_flags,
.imageType = VK_IMAGE_TYPE_2D,
/* .format = fill per image, */
/* .extent = fill per plane, */
.mipLevels = 1,
.arrayLayers = priv->n_layers,
.samples = VK_SAMPLE_COUNT_1_BIT,
.tiling = tiling,
.usage = requested_usage,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.initialLayout = priv->initial_layout == VK_IMAGE_LAYOUT_PREINITIALIZED
? VK_IMAGE_LAYOUT_PREINITIALIZED
: VK_IMAGE_LAYOUT_UNDEFINED,
};
/* *INDENT-ON* */
priv->v_info.size = 0;
for (i = 0; i < priv->n_imgs; i++) {
GstVulkanImageMemory *img_mem;
guint width, height;
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
VkVideoProfileInfoKHR profiles[] =
{ priv->profiles[0].profile, priv->profiles[1].profile };
VkVideoProfileListInfoKHR profile_list = {
.sType = VK_STRUCTURE_TYPE_VIDEO_PROFILE_LIST_INFO_KHR,
.profileCount = priv->n_profiles,
.pProfiles = profiles,
};
#endif
if (GST_VIDEO_INFO_N_PLANES (&priv->v_info) != priv->n_imgs) {
width = GST_VIDEO_INFO_WIDTH (&priv->v_info);
height = GST_VIDEO_INFO_HEIGHT (&priv->v_info);
} else {
width = GST_VIDEO_INFO_COMP_WIDTH (&priv->v_info, i);
height = GST_VIDEO_INFO_COMP_HEIGHT (&priv->v_info, i);
}
image_info.format = priv->vk_fmts[i];
/* *INDENT-OFF* */
image_info.extent = (VkExtent3D) { width, height, 1 };
/* *INDENT-ON* */
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
if (priv->n_profiles > 0)
image_info.pNext = &profile_list;
#endif
img_mem = (GstVulkanImageMemory *)
gst_vulkan_image_memory_alloc_with_image_info (vk_pool->device,
&image_info, priv->mem_props);
if (!img_mem)
goto mem_create_failed;
if (!img_mem)
goto image_failed;
priv->v_info.offset[i] = priv->v_info.size;
priv->v_info.size += img_mem->requirements.size;
gst_memory_unref (GST_MEMORY_CAST (img_mem));
}
gst_buffer_pool_config_set_params (config, caps,
priv->v_info.size, min_buffers, max_buffers);
priv->usage = requested_usage;
return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config) && ret;
/* ERRORS */
wrong_config:
{
GST_WARNING_OBJECT (pool, "invalid config");
return FALSE;
}
no_caps:
{
GST_WARNING_OBJECT (pool, "no caps in config");
return FALSE;
}
wrong_caps:
{
GST_WARNING_OBJECT (pool,
"failed getting geometry from caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
no_vk_format:
{
GST_WARNING_OBJECT (pool, "no Vulkan format available for %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&priv->v_info)));
return FALSE;
}
mem_create_failed:
{
GST_WARNING_OBJECT (pool, "Could not create Vulkan Memory");
return FALSE;
}
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
missing_profile:
{
GST_WARNING_OBJECT (pool, "missing or invalid decode-caps");
return FALSE;
}
#endif
image_failed:
{
GST_WARNING_OBJECT (pool, "Failed to allocate image");
return FALSE;
}
}
static gboolean
prepare_buffer (GstVulkanImageBufferPool * vk_pool, GstBuffer * buffer)
{
#if defined(VK_KHR_synchronization2)
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (vk_pool);
GArray *barriers = NULL;
GError *error = NULL;
if (priv->initial_layout == VK_IMAGE_LAYOUT_UNDEFINED ||
priv->initial_layout == VK_IMAGE_LAYOUT_PREINITIALIZED)
return TRUE;
if (!priv->exec) {
GstVulkanCommandPool *cmd_pool;
GstVulkanQueue *queue = NULL;
queue =
gst_vulkan_device_select_queue (vk_pool->device,
VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT);
if (!queue)
return FALSE;
cmd_pool = gst_vulkan_queue_create_command_pool (queue, &error);
gst_object_unref (queue);
if (error)
goto error;
priv->exec = gst_vulkan_operation_new (cmd_pool);
gst_object_unref (cmd_pool);
}
if (!gst_vulkan_operation_add_dependency_frame (priv->exec, buffer,
VK_PIPELINE_STAGE_NONE_KHR, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT))
return FALSE;
if (!gst_vulkan_operation_begin (priv->exec, &error))
goto error;
if (!gst_vulkan_operation_add_frame_barrier (priv->exec, buffer,
VK_PIPELINE_STAGE_NONE_KHR, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
priv->initial_access, priv->initial_layout, NULL))
goto error;
barriers = gst_vulkan_operation_retrieve_image_barriers (priv->exec);
if (barriers->len > 0) {
if (gst_vulkan_operation_use_sync2 (priv->exec)) {
VkDependencyInfoKHR dependency_info = {
.sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO_KHR,
.pImageMemoryBarriers = (gpointer) barriers->data,
.imageMemoryBarrierCount = barriers->len,
};
gst_vulkan_operation_pipeline_barrier2 (priv->exec, &dependency_info);
} else {
gst_vulkan_command_buffer_lock (priv->exec->cmd_buf);
vkCmdPipelineBarrier (priv->exec->cmd_buf->cmd,
VK_PIPELINE_STAGE_NONE_KHR, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0,
NULL, 0, NULL, barriers->len, (gpointer) barriers->data);
gst_vulkan_command_buffer_unlock (priv->exec->cmd_buf);
}
}
g_array_unref (barriers);
if (!gst_vulkan_operation_end (priv->exec, &error))
goto error;
return TRUE;
error:
{
if (error) {
GST_WARNING_OBJECT (vk_pool, "Error: %s", error->message);
g_clear_error (&error);
}
return FALSE;
}
#endif
return TRUE;
}
/* This function handles GstBuffer creation */
static GstFlowReturn
gst_vulkan_image_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
GstBufferPoolAcquireParams * params)
{
GstVulkanImageBufferPool *vk_pool = GST_VULKAN_IMAGE_BUFFER_POOL_CAST (pool);
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (vk_pool);
VkImageTiling tiling =
priv->raw_caps ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
VkImageCreateInfo image_info;
GstBuffer *buf;
guint i;
/* *INDENT-OFF* */
image_info = (VkImageCreateInfo) {
.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
.pNext = NULL,
.flags = priv->img_flags,
.imageType = VK_IMAGE_TYPE_2D,
/* .format = fill per image, */
/* .extent = fill per plane, */
.mipLevels = 1,
.arrayLayers = priv->n_layers,
.samples = VK_SAMPLE_COUNT_1_BIT,
.tiling = tiling,
.usage = priv->usage,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.initialLayout = priv->initial_layout == VK_IMAGE_LAYOUT_PREINITIALIZED
? VK_IMAGE_LAYOUT_PREINITIALIZED
: VK_IMAGE_LAYOUT_UNDEFINED,
};
/* *INDENT-ON* */
if (!(buf = gst_buffer_new ())) {
goto no_buffer;
}
for (i = 0; i < priv->n_imgs; i++) {
GstMemory *mem;
guint width, height;
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
VkVideoProfileInfoKHR profiles[] =
{ priv->profiles[0].profile, priv->profiles[1].profile };
VkVideoProfileListInfoKHR profile_list = {
.sType = VK_STRUCTURE_TYPE_VIDEO_PROFILE_LIST_INFO_KHR,
.profileCount = priv->n_profiles,
.pProfiles = profiles,
};
#endif
if (GST_VIDEO_INFO_N_PLANES (&priv->v_info) != priv->n_imgs) {
width = GST_VIDEO_INFO_WIDTH (&priv->v_info);
height = GST_VIDEO_INFO_HEIGHT (&priv->v_info);
} else {
width = GST_VIDEO_INFO_COMP_WIDTH (&priv->v_info, i);
height = GST_VIDEO_INFO_COMP_HEIGHT (&priv->v_info, i);
}
image_info.format = priv->vk_fmts[i];
/* *INDENT-OFF* */
image_info.extent = (VkExtent3D) { width, height, 1 };
/* *INDENT-ON* */
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
if (priv->n_profiles > 0)
image_info.pNext = &profile_list;
#endif
mem = gst_vulkan_image_memory_alloc_with_image_info (vk_pool->device,
&image_info, priv->mem_props);
if (!mem) {
gst_buffer_unref (buf);
goto mem_create_failed;
}
gst_buffer_append_memory (buf, mem);
}
prepare_buffer (vk_pool, buf);
*buffer = buf;
return GST_FLOW_OK;
/* ERROR */
no_buffer:
{
GST_WARNING_OBJECT (pool, "can't create image");
return GST_FLOW_ERROR;
}
mem_create_failed:
{
GST_WARNING_OBJECT (pool, "Could not create Vulkan Memory");
return GST_FLOW_ERROR;
}
}
static gboolean
gst_vulkan_image_buffer_pool_stop (GstBufferPool * pool)
{
#if defined(VK_KHR_synchronization2)
GstVulkanImageBufferPool *vk_pool = GST_VULKAN_IMAGE_BUFFER_POOL_CAST (pool);
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (vk_pool);
if (priv->exec)
gst_vulkan_operation_wait (priv->exec);
#endif
return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
}
static void
gst_vulkan_image_buffer_pool_reset_buffer (GstBufferPool * pool,
GstBuffer * buffer)
{
GstVulkanImageBufferPool *vk_pool = GST_VULKAN_IMAGE_BUFFER_POOL_CAST (pool);
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (vk_pool);
GstVulkanImageMemory *mem;
guint i, n = gst_buffer_n_memory (buffer);
GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
for (i = 0; i < n; i++) {
mem = (GstVulkanImageMemory *) gst_buffer_peek_memory (buffer, i);
mem->barrier.parent.access_flags = priv->initial_access;
}
}
/**
* gst_vulkan_image_buffer_pool_new:
* @device: the #GstVulkanDevice to use
*
* Returns: (transfer full): a #GstBufferPool that allocates buffers with #GstGLMemory
*
* Since: 1.18
*/
GstBufferPool *
gst_vulkan_image_buffer_pool_new (GstVulkanDevice * device)
{
GstVulkanImageBufferPool *pool;
pool = g_object_new (GST_TYPE_VULKAN_IMAGE_BUFFER_POOL, NULL);
g_object_ref_sink (pool);
pool->device = gst_object_ref (device);
GST_LOG_OBJECT (pool, "new Vulkan buffer pool for device %" GST_PTR_FORMAT,
device);
return GST_BUFFER_POOL_CAST (pool);
}
static void
gst_vulkan_image_buffer_pool_class_init (GstVulkanImageBufferPoolClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBufferPoolClass *gstbufferpool_class = (GstBufferPoolClass *) klass;
gobject_class->finalize = gst_vulkan_image_buffer_pool_finalize;
gstbufferpool_class->set_config = gst_vulkan_image_buffer_pool_set_config;
gstbufferpool_class->alloc_buffer = gst_vulkan_image_buffer_pool_alloc;
gstbufferpool_class->stop = gst_vulkan_image_buffer_pool_stop;
gstbufferpool_class->reset_buffer = gst_vulkan_image_buffer_pool_reset_buffer;
}
static void
gst_vulkan_image_buffer_pool_init (GstVulkanImageBufferPool * pool)
{
}
static void
gst_vulkan_image_buffer_pool_finalize (GObject * object)
{
GstVulkanImageBufferPool *pool = GST_VULKAN_IMAGE_BUFFER_POOL_CAST (object);
GstVulkanImageBufferPoolPrivate *priv = GET_PRIV (pool);
GST_LOG_OBJECT (pool, "finalize Vulkan buffer pool %p", pool);
if (priv->caps)
gst_caps_unref (priv->caps);
gst_clear_object (&priv->exec);
G_OBJECT_CLASS (gst_vulkan_image_buffer_pool_parent_class)->finalize (object);
/* only release the context once all our memory have been deleted */
if (pool->device) {
gst_object_unref (pool->device);
pool->device = NULL;
}
}