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db7a3b8d3e
Add gst_vaapi_get_config_attribute() helper function that takes a GstVaapiDisplay and the rest of the arguments with VA types. The aim is to have thread-safe VA helpers by default.
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/*
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* gstvaapiutils_core.c - VA-API utilities (Core, MT-safe)
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2011-2014 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "sysdeps.h"
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#include "gstvaapicompat.h"
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#include "gstvaapiutils.h"
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#include "gstvaapiutils_core.h"
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#include "gstvaapidisplay_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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/**
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* gst_vaapi_get_config_attribute:
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* @display: a #GstVaapiDisplay
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* @profile: a VA profile
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* @entrypoint: a VA entrypoint
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* @type: a VA config attribute type
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* @out_value_ptr: return location for the config attribute value
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*
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* Determines the value for the VA config attribute @type and the
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* given @profile/@entrypoint pair. If @out_value_ptr is %NULL, then
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* this functions acts as a way to query whether the underlying VA
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* driver supports the specified attribute @type, no matter the
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* returned value.
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*
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* Note: this function only returns success if the VA driver does
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* actually know about this config attribute type and that it returned
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* a valid value for it.
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*
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* Return value: %TRUE if the VA driver knows about the requested
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* config attribute and returned a valid value, %FALSE otherwise
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*/
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gboolean
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gst_vaapi_get_config_attribute (GstVaapiDisplay * display, VAProfile profile,
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VAEntrypoint entrypoint, VAConfigAttribType type, guint * out_value_ptr)
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{
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VAConfigAttrib attrib;
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VAStatus status;
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g_return_val_if_fail (display != NULL, FALSE);
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GST_VAAPI_DISPLAY_LOCK (display);
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attrib.type = type;
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status = vaGetConfigAttributes (GST_VAAPI_DISPLAY_VADISPLAY (display),
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profile, entrypoint, &attrib, 1);
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GST_VAAPI_DISPLAY_UNLOCK (display);
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if (!vaapi_check_status (status, "vaGetConfigAttributes()"))
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return FALSE;
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if (attrib.value == VA_ATTRIB_NOT_SUPPORTED)
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return FALSE;
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if (out_value_ptr)
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*out_value_ptr = attrib.value;
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return TRUE;
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}
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