mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-01 22:21:13 +00:00
104 lines
2.9 KiB
C
104 lines
2.9 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"
|
|
|
|
#include <gudev/gudev.h>
|
|
|
|
#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)
|
|
{
|
|
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);
|
|
|
|
return device;
|
|
}
|
|
|
|
static gint
|
|
compare_device_path (gconstpointer a, gconstpointer b, gpointer user_data)
|
|
{
|
|
const GstVaDevice *pa = a, *pb = b;
|
|
|
|
return strcmp (pa->render_device_path, pb->render_device_path);
|
|
}
|
|
|
|
GList *
|
|
gst_va_device_find_devices (void)
|
|
{
|
|
GUdevClient *client;
|
|
GList *udev_devices, *dev;
|
|
GQueue devices = G_QUEUE_INIT;
|
|
|
|
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));
|
|
}
|
|
|
|
g_queue_sort (&devices, compare_device_path, NULL);
|
|
g_list_free_full (udev_devices, g_object_unref);
|
|
g_object_unref (client);
|
|
|
|
return devices.head;
|
|
}
|
|
|
|
void
|
|
gst_va_device_list_free (GList * devices)
|
|
{
|
|
g_list_free_full (devices, (GDestroyNotify) gst_mini_object_unref);
|
|
}
|