gstreamer/subprojects/gst-plugins-bad/sys/va/gstvadevice.c
Víctor Manuel Jáquez Leal c8a0d706ca va: Add render node name in non-first devices.
There could be multi-GPU setups where the non-first has more
entrypoints than the first one, and the elements names are not
homogeneous, leading to pipeline building error.

This patch add the render node in the elements names when they belong
to the non-first device.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3491>
2022-12-01 16:00:55 +00:00

135 lines
3.6 KiB
C

/* GStreamer
* Copyright (C) 2020 Igalia, S.L.
* Author: Víctor Jáquez <vjaquez@igalia.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 "gstvadevice.h"
#if HAVE_GUDEV
#include <gudev/gudev.h>
#endif
#define GST_CAT_DEFAULT gstva_debug
GST_DEBUG_CATEGORY_EXTERN (gstva_debug);
GST_DEFINE_MINI_OBJECT_TYPE (GstVaDevice, gst_va_device);
static void
gst_va_device_free (GstVaDevice * device)
{
gst_clear_object (&device->display);
g_free (device->render_device_path);
g_free (device);
}
static GstVaDevice *
gst_va_device_new (GstVaDisplay * display, const gchar * render_device_path,
gint index)
{
GstVaDevice *device = g_new0 (GstVaDevice, 1);
gst_mini_object_init (GST_MINI_OBJECT_CAST (device), 0, GST_TYPE_VA_DEVICE,
NULL, NULL, (GstMiniObjectFreeFunction) gst_va_device_free);
/* take ownership */
device->display = display;
device->render_device_path = g_strdup (render_device_path);
device->index = index;
return device;
}
static gint
compare_device_path (gconstpointer a, gconstpointer b, gpointer user_data)
{
const GstVaDevice *pa = a, *pb = b;
return g_strcmp0 (pa->render_device_path, pb->render_device_path);
}
#if HAVE_GUDEV
GList *
gst_va_device_find_devices (void)
{
GUdevClient *client;
GList *udev_devices, *dev;
GQueue devices = G_QUEUE_INIT;
gint i = 0;
client = g_udev_client_new (NULL);
udev_devices = g_udev_client_query_by_subsystem (client, "drm");
for (dev = udev_devices; dev; dev = g_list_next (dev)) {
GstVaDisplay *dpy;
GUdevDevice *udev = (GUdevDevice *) dev->data;
const gchar *path = g_udev_device_get_device_file (udev);
const gchar *name = g_udev_device_get_name (udev);
if (!path || !g_str_has_prefix (name, "renderD")) {
GST_LOG ("Ignoring %s in %s", name, path);
continue;
}
if (!(dpy = gst_va_display_drm_new_from_path (path)))
continue;
GST_INFO ("Found VA-API device: %s", path);
g_queue_push_head (&devices, gst_va_device_new (dpy, path, i++));
}
g_queue_sort (&devices, compare_device_path, NULL);
g_list_free_full (udev_devices, g_object_unref);
g_object_unref (client);
return devices.head;
}
#else
GList *
gst_va_device_find_devices (void)
{
GstVaDisplay *dpy;
GQueue devices = G_QUEUE_INIT;
gchar path[64];
guint i, j = 0;
for (i = 0; i < 8; i++) {
g_snprintf (path, sizeof (path), "/dev/dri/renderD%d", 128 + i);
if (!g_file_test (path, G_FILE_TEST_EXISTS))
continue;
if (!(dpy = gst_va_display_drm_new_from_path (path)))
continue;
GST_INFO ("Found VA-API device: %s", path);
g_queue_push_head (&devices, gst_va_device_new (dpy, path, j++));
}
g_queue_sort (&devices, compare_device_path, NULL);
return devices.head;
}
#endif
void
gst_va_device_list_free (GList * devices)
{
g_list_free_full (devices, (GDestroyNotify) gst_mini_object_unref);
}