gstreamer/gst/vaapi/gstvaapi.c
Víctor Manuel Jáquez Leal e070d3ebed vaapi: instantiate a VA display when registering
This patch tries to instantiate a GstVaapiDisplay when registering the plugin
features, if it fails, no gstreamer-vaapi element is registering.

The purpose of this patch is to avoid a situation where the user has
gstreamer-vaapi installed but their VA-API setup is not functional, which may
lead to unexpected behavior.

https://bugzilla.gnome.org/show_bug.cgi?id=724352
2016-07-22 17:23:23 +02:00

140 lines
4.1 KiB
C

/*
* gstvaapi.c - VA-API element registration
*
* Copyright (C) 2011-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
* Copyright (C) 2011 Collabora Ltd.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gstcompat.h"
#include "gstvaapidecode.h"
#include "gstvaapipostproc.h"
#include "gstvaapisink.h"
#include "gstvaapidecodebin.h"
#if USE_ENCODERS
#include "gstvaapiencode_h264.h"
#include "gstvaapiencode_mpeg2.h"
#if USE_JPEG_ENCODER
#include "gstvaapiencode_jpeg.h"
#endif
#if USE_VP8_ENCODER
#include "gstvaapiencode_vp8.h"
#endif
#if USE_H265_ENCODER
#include "gstvaapiencode_h265.h"
#endif
#if USE_VP9_ENCODER
#include "gstvaapiencode_vp9.h"
#endif
#endif
#define PLUGIN_NAME "vaapi"
#define PLUGIN_DESC "VA-API based elements"
#define PLUGIN_LICENSE "LGPL"
static void
plugin_add_dependencies (GstPlugin * plugin)
{
const gchar *envvars[] = { "GST_VAAPI_ALL_DRIVERS", "LIBVA_DRIVER_NAME",
NULL
};
const gchar *kernel_paths[] = { "/dev/dri", NULL };
const gchar *kernel_names[] = { "card", "render" };
/* features get updated upon changes in /dev/dri/card* */
gst_plugin_add_dependency (plugin, NULL, kernel_paths, kernel_names,
GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_PREFIX);
/* features get updated upon changes in VA environment variables */
gst_plugin_add_dependency (plugin, envvars, NULL, NULL,
GST_PLUGIN_DEPENDENCY_FLAG_NONE);
/* features get updated upon changes in default VA drivers
* directory */
gst_plugin_add_dependency_simple (plugin, "LIBVA_DRIVERS_PATH",
VA_DRIVERS_PATH, "_drv_video.so",
GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_SUFFIX |
GST_PLUGIN_DEPENDENCY_FLAG_PATHS_ARE_DEFAULT_ONLY);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GstVaapiDisplay *display;
plugin_add_dependencies (plugin);
display = gst_vaapi_create_test_display ();
if (!display)
goto error_no_display;
gst_vaapidecode_register (plugin);
gst_element_register (plugin, "vaapipostproc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIPOSTPROC);
gst_element_register (plugin, "vaapisink",
GST_RANK_PRIMARY, GST_TYPE_VAAPISINK);
#if USE_ENCODERS
gst_element_register (plugin, "vaapih264enc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_H264);
gst_element_register (plugin, "vaapimpeg2enc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_MPEG2);
#if USE_JPEG_ENCODER
gst_element_register (plugin, "vaapijpegenc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_JPEG);
#endif
#if USE_VP8_ENCODER
gst_element_register (plugin, "vaapivp8enc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_VP8);
#endif
#if USE_H265_ENCODER
gst_element_register (plugin, "vaapih265enc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_H265);
#endif
#if USE_VP9_ENCODER
gst_element_register (plugin, "vaapivp9enc",
GST_RANK_PRIMARY, GST_TYPE_VAAPIENCODE_VP9);
#endif
#endif
gst_element_register (plugin, "vaapidecodebin",
GST_RANK_PRIMARY + 2, GST_TYPE_VAAPI_DECODE_BIN);
gst_vaapi_display_unref (display);
return TRUE;
/* ERRORS: */
error_no_display:
{
GST_ERROR ("Cannot create a VA display");
/* Avoid blacklisting: failure to create a display could be a
* transient condition */
return TRUE;
}
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR,
vaapi, PLUGIN_DESC, plugin_init,
PACKAGE_VERSION, PLUGIN_LICENSE, PACKAGE, PACKAGE_BUGREPORT)