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/*
* gstvaapiutils_core.c - VA-API utilities (Core, MT-safe)
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* 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 "sysdeps.h"
#include "gstvaapicompat.h"
#include "gstvaapiimage.h"
#include "gstvaapiutils.h"
#include "gstvaapiutils_core.h"
#include "gstvaapidisplay_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/**
* gst_vaapi_get_config_attribute:
* @display: a #GstVaapiDisplay
* @profile: a VA profile
* @entrypoint: a VA entrypoint
* @type: a VA config attribute type
* @out_value_ptr: return location for the config attribute value
*
* Determines the value for the VA config attribute @type and the
* given @profile/@entrypoint pair. If @out_value_ptr is %NULL, then
* this functions acts as a way to query whether the underlying VA
* driver supports the specified attribute @type, no matter the
* returned value.
*
* Note: this function only returns success if the VA driver does
* actually know about this config attribute type and that it returned
* a valid value for it.
*
* Return value: %TRUE if the VA driver knows about the requested
* config attribute and returned a valid value, %FALSE otherwise
*/
gboolean
gst_vaapi_get_config_attribute (GstVaapiDisplay * display, VAProfile profile,
VAEntrypoint entrypoint, VAConfigAttribType type, guint * out_value_ptr)
{
VAConfigAttrib attrib;
VAStatus status;
g_return_val_if_fail (display != NULL, FALSE);
GST_VAAPI_DISPLAY_LOCK (display);
attrib.type = type;
status = vaGetConfigAttributes (GST_VAAPI_DISPLAY_VADISPLAY (display),
profile, entrypoint, &attrib, 1);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaGetConfigAttributes()"))
return FALSE;
if (attrib.value == VA_ATTRIB_NOT_SUPPORTED)
return FALSE;
if (out_value_ptr)
*out_value_ptr = attrib.value;
return TRUE;
}
static VASurfaceAttrib *
get_surface_attributes (GstVaapiDisplay * display, VAConfigID config,
guint * num_attribs)
{
VASurfaceAttrib *surface_attribs = NULL;
guint num_surface_attribs = 0;
VAStatus va_status;
if (config == VA_INVALID_ID)
goto error;
GST_VAAPI_DISPLAY_LOCK (display);
va_status = vaQuerySurfaceAttributes (GST_VAAPI_DISPLAY_VADISPLAY (display),
config, NULL, &num_surface_attribs);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (va_status, "vaQuerySurfaceAttributes()"))
goto error;
surface_attribs = g_malloc (num_surface_attribs * sizeof (*surface_attribs));
if (!surface_attribs)
goto error;
GST_VAAPI_DISPLAY_LOCK (display);
va_status = vaQuerySurfaceAttributes (GST_VAAPI_DISPLAY_VADISPLAY (display),
config, surface_attribs, &num_surface_attribs);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (va_status, "vaQuerySurfaceAttributes()"))
goto error;
if (num_attribs)
*num_attribs = num_surface_attribs;
return surface_attribs;
/* ERRORS */
error:
{
if (num_attribs)
*num_attribs = -1;
if (surface_attribs)
g_free (surface_attribs);
return NULL;
}
}
/**
* gst_vaapi_config_surface_attribures_get:
* @display: a #GstVaapiDisplay
* @config: a #VAConfigID
*
* Retrieves the possible surface attributes for the supplied config.
*
* Returns: (transfer full): returns a #GstVaapiConfigSurfaceAttributes
**/
GstVaapiConfigSurfaceAttributes *
gst_vaapi_config_surface_attributes_get (GstVaapiDisplay * display,
VAConfigID config)
{
VASurfaceAttrib *surface_attribs;
guint i, num_pixel_formats = 0, num_surface_attribs = 0;
GstVaapiConfigSurfaceAttributes *attribs = NULL;
surface_attribs =
get_surface_attributes (display, config, &num_surface_attribs);
if (!surface_attribs)
return NULL;
attribs = g_slice_new0 (GstVaapiConfigSurfaceAttributes);
if (!attribs)
goto error;
for (i = 0; i < num_surface_attribs; i++) {
const VASurfaceAttrib *const attrib = &surface_attribs[i];
switch (attrib->type) {
case VASurfaceAttribPixelFormat:
if ((attrib->flags & VA_SURFACE_ATTRIB_SETTABLE)) {
GstVideoFormat fmt;
fmt = gst_vaapi_video_format_from_va_fourcc (attrib->value.value.i);
if (fmt != GST_VIDEO_FORMAT_UNKNOWN)
num_pixel_formats++;
}
break;
case VASurfaceAttribMinWidth:
attribs->min_width = attrib->value.value.i;
break;
case VASurfaceAttribMinHeight:
attribs->min_height = attrib->value.value.i;
break;
case VASurfaceAttribMaxWidth:
attribs->max_width = attrib->value.value.i;
break;
case VASurfaceAttribMaxHeight:
attribs->max_height = attrib->value.value.i;
break;
case VASurfaceAttribMemoryType:
attribs->mem_types = attrib->value.value.i;
break;
default:
break;
}
}
if (num_pixel_formats == 0) {
attribs->formats = NULL;
} else {
attribs->formats = g_array_sized_new (FALSE, FALSE, sizeof (GstVideoFormat),
num_pixel_formats);
for (i = 0; i < num_surface_attribs; i++) {
const VASurfaceAttrib *const attrib = &surface_attribs[i];
GstVideoFormat fmt;
if (attrib->type != VASurfaceAttribPixelFormat)
continue;
if (!(attrib->flags & VA_SURFACE_ATTRIB_SETTABLE))
continue;
fmt = gst_vaapi_video_format_from_va_fourcc (attrib->value.value.i);
if (fmt == GST_VIDEO_FORMAT_UNKNOWN)
continue;
g_array_append_val (attribs->formats, fmt);
}
}
g_free (surface_attribs);
return attribs;
/* ERRORS */
error:
{
g_free (surface_attribs);
gst_vaapi_config_surface_attributes_free (attribs);
return NULL;
}
}
void
gst_vaapi_config_surface_attributes_free (GstVaapiConfigSurfaceAttributes *
attribs)
{
if (!attribs)
return;
if (attribs->formats)
g_array_unref (attribs->formats);
g_slice_free (GstVaapiConfigSurfaceAttributes, attribs);
}
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