Commit 3fef510c authored by Matthew Waters's avatar Matthew Waters 🐨

vulkan: add download element

Currently only downloads images into a host-visible buffer and
synchronises immediately.
parent dc0c9dea
......@@ -32,6 +32,7 @@
#include "vksink.h"
#include "vkupload.h"
#include "vkimageidentity.h"
#include "vkdownload.h"
#define GST_CAT_DEFAULT gst_vulkan_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
......@@ -51,6 +52,11 @@ plugin_init (GstPlugin * plugin)
return FALSE;
}
if (!gst_element_register (plugin, "vulkandownload",
GST_RANK_NONE, GST_TYPE_VULKAN_DOWNLOAD)) {
return FALSE;
}
if (!gst_element_register (plugin, "vulkanimageidentity",
GST_RANK_NONE, GST_TYPE_VULKAN_IMAGE_IDENTITY)) {
return FALSE;
......
......@@ -10,6 +10,7 @@ subdir('shaders')
vulkan_sources = [
'gstvulkan.c',
'vkdownload.c',
'vkfullscreenrender.c',
'vkimageidentity.c',
'vksink.c',
......
This diff is collapsed.
/*
* GStreamer
* Copyright (C) 2019 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.
*/
#ifndef _VK_DOWNLOAD_H_
#define _VK_DOWNLOAD_H_
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/vulkan/vulkan.h>
G_BEGIN_DECLS
#define GST_TYPE_VULKAN_DOWNLOAD (gst_vulkan_download_get_type())
#define GST_VULKAN_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VULKAN_DOWNLOAD,GstVulkanDownload))
#define GST_VULKAN_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VULKAN_DOWNLOAD,GstVulkanDownloadClass))
#define GST_IS_VULKAN_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VULKAN_DOWNLOAD))
#define GST_IS_VULKAN_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VULKAN_DOWNLOAD))
typedef struct _GstVulkanDownload GstVulkanDownload;
typedef struct _GstVulkanDownloadClass GstVulkanDownloadClass;
struct DownloadMethod
{
const gchar *name;
GstStaticCaps *in_template;
GstStaticCaps *out_template;
gpointer (*new_impl) (GstVulkanDownload * download);
GstCaps * (*transform_caps) (gpointer impl,
GstPadDirection direction,
GstCaps * caps);
gboolean (*set_caps) (gpointer impl,
GstCaps * in_caps,
GstCaps * out_caps);
void (*propose_allocation) (gpointer impl,
GstQuery * decide_query,
GstQuery * query);
GstFlowReturn (*perform) (gpointer impl,
GstBuffer * buffer,
GstBuffer ** outbuf);
void (*free) (gpointer impl);
};
struct _GstVulkanDownload
{
GstBaseTransform parent;
GstVulkanInstance *instance;
GstVulkanDevice *device;
GstVulkanQueue *queue;
GstCaps *in_caps;
GstCaps *out_caps;
/* all impl pointers */
gpointer *download_impls;
guint current_impl;
};
struct _GstVulkanDownloadClass
{
GstBaseTransformClass video_sink_class;
};
GType gst_vulkan_download_get_type(void);
G_END_DECLS
#endif
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment