Víctor Manuel Jáquez Leal c84982b5c9 vulkan: fine grained access to API
This patch is the payment to my technical debt.

The symbol GST_VULKAN_HAVE_VIDEO_EXTENSIONS is defined at compilation-time if
the user requests for the usage of the Vulkan Video extensions. And we used this
symbol for anything related with Vulkan Video. But this is not the smartest
approach.

The rule should be:

- If the code allocates Vulkan Video resources, use
  GST_VULKAN_HAVE_VIDEO_EXTENSIONS

- Otherwise, use the Vulkan's guard for the used API

In this way, API version bumps will be easier.

Also, this commit marks the end of GST_VULKAN_HAVE_VIDEO_EXTENSIONS guarded code
for readability.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9492>
2025-08-08 11:48:25 +00:00

126 lines
4.0 KiB
C

/*
* GStreamer
* Copyright (C) 2015 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.
*/
/**
* SECTION:plugin-vulkan
* @title: vulkan
*
* Cross-platform Vulkan plugin.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "vksink.h"
#include "vkupload.h"
#include "vkdownload.h"
#include "vkdeviceprovider.h"
#include "gstvulkanelements.h"
#if defined(HAVE_GLSLC)
#include "vkimageidentity.h"
#include "vkcolorconvert.h"
#include "vkshaderspv.h"
#include "vkviewconvert.h"
#include "vkoverlaycompositor.h"
#endif
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
#include "vkh264dec.h"
#include "vkh265dec.h"
# include "vkh264enc.h"
#endif
static gboolean
plugin_init (GstPlugin * plugin)
{
gboolean ret = FALSE;
GstVulkanInstance *instance = gst_vulkan_instance_new ();
GError *error = NULL;
gboolean have_instance = gst_vulkan_instance_open (instance, &error);
const gchar *env_vars[] =
{ "VK_ICD_FILENAMES", "VK_DRIVER_FILES", "VK_ADD_DRIVER_FILES", NULL };
#ifndef G_OS_WIN32
const gchar *kernel_paths[] = { "/dev/dri", NULL };
const gchar *kernel_names[] = { "renderD", NULL };
/* features get updated upon changes in /dev/dri/renderD* */
gst_plugin_add_dependency (plugin, NULL, kernel_paths, kernel_names,
GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_PREFIX);
/* features get updated upon changes on VK_ICD_FILENAMES envvar */
#endif
gst_plugin_add_dependency (plugin, env_vars, NULL, NULL,
GST_PLUGIN_DEPENDENCY_FLAG_NONE);
if (!have_instance) {
GST_WARNING_OBJECT (plugin, "Failed to create vulkan instance: %s",
error->message);
g_clear_error (&error);
}
ret |= GST_DEVICE_PROVIDER_REGISTER (vulkandeviceprovider, plugin);
ret |= GST_ELEMENT_REGISTER (vulkanupload, plugin);
ret |= GST_ELEMENT_REGISTER (vulkandownload, plugin);
#if defined(HAVE_GLSLC)
ret |= GST_ELEMENT_REGISTER (vulkancolorconvert, plugin);
ret |= GST_ELEMENT_REGISTER (vulkanimageidentity, plugin);
ret |= GST_ELEMENT_REGISTER (vulkanshaderspv, plugin);
ret |= GST_ELEMENT_REGISTER (vulkanviewconvert, plugin);
ret |= GST_ELEMENT_REGISTER (vulkanoverlaycompositor, plugin);
#endif
if (have_instance && instance->n_physical_devices) {
for (gint i = 0; i < instance->n_physical_devices; i++) {
GstVulkanDevice *device = gst_vulkan_device_new_with_index (instance, i);
#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
if (gst_vulkan_device_is_extension_enabled (device,
VK_KHR_VIDEO_DECODE_H264_EXTENSION_NAME)) {
ret |= gst_vulkan_h264_decoder_register (plugin, device, GST_RANK_NONE);
}
if (gst_vulkan_device_is_extension_enabled (device,
VK_KHR_VIDEO_DECODE_H265_EXTENSION_NAME)) {
ret |= gst_vulkan_h265_decoder_register (plugin, device, GST_RANK_NONE);
}
if (gst_vulkan_device_is_extension_enabled (device,
VK_KHR_VIDEO_ENCODE_H264_EXTENSION_NAME)) {
ret |= gst_vulkan_h264_encoder_register (plugin, device, GST_RANK_NONE);
}
#endif /* GST_VULKAN_HAVE_VIDEO_EXTENSIONS */
ret |= gst_vulkan_sink_register (plugin, device, GST_RANK_NONE);
gst_object_unref (device);
}
}
gst_object_unref (instance);
return ret;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
vulkan,
"Vulkan plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)