gstreamer/gst-libs/gst/vaapi/gstvaapiutils.c
Víctor Manuel Jáquez Leal 585628d2a2 libs: guard deprecated symbols
In VA-API 1.0 the H.264 baseline profile is deprecated. This patch
guards the H.264 baseline usage. Consider this commit as a
continuation of commit e0e0a474

https://bugzilla.gnome.org/show_bug.cgi?id=784398
2017-08-25 16:07:34 +02:00

794 lines
18 KiB
C

/*
* gstvaapiutils.c - VA-API utilities
*
* 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 "gstvaapiutils.h"
#include "gstvaapisurface.h"
#include "gstvaapisubpicture.h"
#include "gstvaapifilter.h"
#include <stdio.h>
#include <stdarg.h>
#define DEBUG 1
#include "gstvaapidebug.h"
#define CONCAT(a, b) CONCAT_(a, b)
#define CONCAT_(a, b) a##b
#define STRINGIFY(x) STRINGIFY_(x)
#define STRINGIFY_(x) #x
#define STRCASEP(p, x) STRCASE(CONCAT(p, x))
#define STRCASE(x) case x: return STRINGIFY(x)
#if VA_CHECK_VERSION (0,40,0)
static gchar *
strip_msg (const char *message)
{
gchar *msg;
msg = g_strdup (message);
if (!msg)
return NULL;
return g_strstrip (msg);
}
#if VA_CHECK_VERSION (1,0,0)
static void
gst_vaapi_err (void *data, const char *message)
{
gchar *msg;
msg = strip_msg (message);
if (!msg)
return;
GST_ERROR ("%s", msg);
g_free (msg);
}
#endif
static void
gst_vaapi_log (
#if VA_CHECK_VERSION (1,0,0)
void *data,
#endif
const char *message)
{
gchar *msg;
msg = strip_msg (message);
if (!msg)
return;
GST_INFO ("%s", msg);
g_free (msg);
}
#endif
gboolean
vaapi_initialize (VADisplay dpy)
{
gint major_version, minor_version;
VAStatus status;
#if VA_CHECK_VERSION (1,0,0)
vaSetErrorCallback (dpy, gst_vaapi_err, NULL);
vaSetInfoCallback (dpy, gst_vaapi_log, NULL);
#elif VA_CHECK_VERSION (0,40,0)
vaSetInfoCallback (gst_vaapi_log);
#endif
status = vaInitialize (dpy, &major_version, &minor_version);
if (!vaapi_check_status (status, "vaInitialize()"))
return FALSE;
GST_INFO ("VA-API version %d.%d", major_version, minor_version);
return TRUE;
}
/* Check VA status for success or print out an error */
gboolean
vaapi_check_status (VAStatus status, const gchar * msg)
{
if (status != VA_STATUS_SUCCESS) {
GST_DEBUG ("%s: %s", msg, vaErrorStr (status));
return FALSE;
}
return TRUE;
}
/* Maps VA buffer */
gpointer
vaapi_map_buffer (VADisplay dpy, VABufferID buf_id)
{
VAStatus status;
gpointer data = NULL;
status = vaMapBuffer (dpy, buf_id, &data);
if (!vaapi_check_status (status, "vaMapBuffer()"))
return NULL;
return data;
}
/* Unmaps VA buffer */
void
vaapi_unmap_buffer (VADisplay dpy, VABufferID buf_id, gpointer * pbuf)
{
VAStatus status;
if (pbuf)
*pbuf = NULL;
status = vaUnmapBuffer (dpy, buf_id);
if (!vaapi_check_status (status, "vaUnmapBuffer()"))
return;
}
/* Creates and maps VA buffer */
gboolean
vaapi_create_buffer (VADisplay dpy, VAContextID ctx, int type, guint size,
gconstpointer buf, VABufferID * buf_id_ptr, gpointer * mapped_data)
{
VABufferID buf_id;
VAStatus status;
gpointer data = (gpointer) buf;
status = vaCreateBuffer (dpy, ctx, type, size, 1, data, &buf_id);
if (!vaapi_check_status (status, "vaCreateBuffer()"))
return FALSE;
if (mapped_data) {
data = vaapi_map_buffer (dpy, buf_id);
if (!data)
goto error;
*mapped_data = data;
}
*buf_id_ptr = buf_id;
return TRUE;
/* ERRORS */
error:
{
vaapi_destroy_buffer (dpy, &buf_id);
return FALSE;
}
}
/* Destroy VA buffer */
void
vaapi_destroy_buffer (VADisplay dpy, VABufferID * buf_id_ptr)
{
if (!buf_id_ptr || *buf_id_ptr == VA_INVALID_ID)
return;
vaDestroyBuffer (dpy, *buf_id_ptr);
*buf_id_ptr = VA_INVALID_ID;
}
/* Return a string representation of a VAProfile */
const gchar *
string_of_VAProfile (VAProfile profile)
{
switch (profile) {
#define MAP(profile) \
STRCASEP(VAProfile, profile)
MAP (MPEG2Simple);
MAP (MPEG2Main);
MAP (MPEG4Simple);
MAP (MPEG4AdvancedSimple);
MAP (MPEG4Main);
#if VA_CHECK_VERSION(0,32,0)
MAP (JPEGBaseline);
MAP (H263Baseline);
MAP (H264ConstrainedBaseline);
#endif
#if !VA_CHECK_VERSION(1,0,0)
MAP (H264Baseline);
#endif
MAP (H264Main);
MAP (H264High);
#if VA_CHECK_VERSION(0,35,2)
MAP (H264MultiviewHigh);
MAP (H264StereoHigh);
#endif
#if VA_CHECK_VERSION(0,37,1)
MAP (HEVCMain);
MAP (HEVCMain10);
#endif
MAP (VC1Simple);
MAP (VC1Main);
MAP (VC1Advanced);
#if VA_CHECK_VERSION(0,35,0)
MAP (VP8Version0_3);
#endif
#if VA_CHECK_VERSION(0,37,0)
MAP (VP9Profile0);
#endif
#if VA_CHECK_VERSION(0,39,0)
MAP (VP9Profile1);
MAP (VP9Profile2);
MAP (VP9Profile3);
#endif
#undef MAP
default:
break;
}
return "<unknown>";
}
/* Return a string representation of a VAEntrypoint */
const gchar *
string_of_VAEntrypoint (VAEntrypoint entrypoint)
{
switch (entrypoint) {
#define MAP(entrypoint) \
STRCASEP(VAEntrypoint, entrypoint)
MAP (VLD);
MAP (IZZ);
MAP (IDCT);
MAP (MoComp);
MAP (Deblocking);
#undef MAP
default:
break;
}
return "<unknown>";
}
/* Return a string representation of a VADisplayAttributeType */
const gchar *
string_of_VADisplayAttributeType (VADisplayAttribType attribute_type)
{
switch (attribute_type) {
#define MAP(attribute_type) \
STRCASEP(VADisplayAttrib, attribute_type)
MAP (Brightness);
MAP (Contrast);
MAP (Hue);
MAP (Saturation);
MAP (BackgroundColor);
#if !VA_CHECK_VERSION(0,34,0)
MAP (DirectSurface);
#endif
MAP (Rotation);
MAP (OutofLoopDeblock);
#if VA_CHECK_VERSION(0,31,1) && !VA_CHECK_VERSION(0,34,0)
MAP (BLEBlackMode);
MAP (BLEWhiteMode);
MAP (BlueStretch);
MAP (SkinColorCorrection);
#endif
MAP (CSCMatrix);
MAP (BlendColor);
MAP (OverlayAutoPaintColorKey);
MAP (OverlayColorKey);
MAP (RenderMode);
MAP (RenderDevice);
MAP (RenderRect);
#undef MAP
default:
break;
}
return "<unknown>";
}
/* Return a string representation of a VA chroma format */
const gchar *
string_of_va_chroma_format (guint chroma_format)
{
switch (chroma_format) {
#define MAP(value) \
STRCASEP(VA_RT_FORMAT_, value)
MAP (YUV420);
MAP (YUV422);
MAP (YUV444);
#if VA_CHECK_VERSION(0,34,0)
MAP (YUV400);
MAP (RGB16);
MAP (RGB32);
MAP (RGBP);
#endif
#if VA_CHECK_VERSION(0,38,1)
MAP (YUV420_10BPP);
#endif
#undef MAP
default:
break;
}
return "<unknown>";
}
const gchar *
string_of_VARateControl (guint rate_control)
{
switch (rate_control) {
case VA_RC_NONE:
return "None";
#ifdef VA_RC_CQP
case VA_RC_CQP:
return "CQP";
#endif
case VA_RC_CBR:
return "CBR";
case VA_RC_VCM:
return "VCM";
case VA_RC_VBR:
return "VBR";
#ifdef VA_RC_VBR_CONSTRAINED
case VA_RC_VBR_CONSTRAINED:
return "VBR-Constrained";
#endif
default:
break;
}
return "<unknown>";
}
/**
* to_GstVaapiChromaType:
* @va_rt_format: the value of VAConfigAttribRTFormat
*
* Converts the VA_RT_FORMAT_* to #GstVaapiChromaType
*
* Returns: the #GstVaapiChromaType associated to @va_rt_format or
* zero.
**/
guint
to_GstVaapiChromaType (guint va_rt_format)
{
guint chroma_type;
switch (va_rt_format) {
case VA_RT_FORMAT_YUV420:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
break;
case VA_RT_FORMAT_YUV422:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422;
break;
case VA_RT_FORMAT_YUV444:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444;
break;
#if VA_CHECK_VERSION(0,34,0)
case VA_RT_FORMAT_YUV411:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV411;
break;
case VA_RT_FORMAT_YUV400:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV400;
break;
case VA_RT_FORMAT_RGB32:
chroma_type = GST_VAAPI_CHROMA_TYPE_RGB32;
break;
case VA_RT_FORMAT_RGB16:
chroma_type = GST_VAAPI_CHROMA_TYPE_RGB16;
break;
#endif
#if VA_CHECK_VERSION(0,38,1)
case VA_RT_FORMAT_YUV420_10BPP:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420_10BPP;
break;
#endif
default:
chroma_type = 0;
break;
}
return chroma_type;
}
/**
* from_GstVaapiChromaType:
* @chroma_type: the #GstVaapiChromaType
*
* Converts #GstVaapiChromaType to a chroma format suitable for
* vaCreateSurfaces().
*/
guint
from_GstVaapiChromaType (guint chroma_type)
{
guint format;
switch (chroma_type) {
case GST_VAAPI_CHROMA_TYPE_YUV420:
format = VA_RT_FORMAT_YUV420;
break;
case GST_VAAPI_CHROMA_TYPE_YUV422:
format = VA_RT_FORMAT_YUV422;
break;
case GST_VAAPI_CHROMA_TYPE_YUV444:
format = VA_RT_FORMAT_YUV444;
break;
#if VA_CHECK_VERSION(0,34,0)
case GST_VAAPI_CHROMA_TYPE_YUV411:
format = VA_RT_FORMAT_YUV411;
break;
case GST_VAAPI_CHROMA_TYPE_YUV400:
format = VA_RT_FORMAT_YUV400;
break;
case GST_VAAPI_CHROMA_TYPE_RGB32:
format = VA_RT_FORMAT_RGB32;
break;
case GST_VAAPI_CHROMA_TYPE_RGB16:
format = VA_RT_FORMAT_RGB16;
break;
#endif
#if VA_CHECK_VERSION(0,38,1)
case GST_VAAPI_CHROMA_TYPE_YUV420_10BPP:
format = VA_RT_FORMAT_YUV420_10BPP;
break;
#endif
default:
format = 0;
break;
}
return format;
}
/**
* from_GstVaapiSubpictureFlags:
* @flags: the #GstVaapiSubpictureFlags
*
* Converts #GstVaapiSubpictureFlags to flags suitable for
* vaAssociateSubpicture().
*/
guint
from_GstVaapiSubpictureFlags (guint flags)
{
guint va_flags = 0;
if (flags & GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA)
va_flags |= VA_SUBPICTURE_GLOBAL_ALPHA;
#ifdef VA_SUBPICTURE_PREMULTIPLIED_ALPHA
if (flags & GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA)
flags |= VA_SUBPICTURE_PREMULTIPLIED_ALPHA;
#endif
return va_flags;
}
/**
* to_GstVaapiSubpictureFlags:
* @flags: the #GstVaapiSubpictureFlags flags to translate
*
* Converts vaQuerySubpictureFormats() @flags to #GstVaapiSubpictureFlags
* flags.
*
* Return value: the #GstVaapiSubpictureFlags flags
*/
guint
to_GstVaapiSubpictureFlags (guint va_flags)
{
guint flags = 0;
if (va_flags & VA_SUBPICTURE_GLOBAL_ALPHA)
flags |= GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA;
#ifdef VA_SUBPICTURE_PREMULTIPLIED_ALPHA
if (va_flags & VA_SUBPICTURE_PREMULTIPLIED_ALPHA)
flags |= GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA;
#endif
return flags;
}
/**
* from_GstVideoOverlayFormatFlags:
* @flags: the #GstVideoOverlayFormatFlags flags to translate
*
* Converts #GstVaapiSubpictureFlags to #GstVaapiSubpictureFlags.
*
* Return value: the #GstVaapiSubpictureFlags flags
*/
guint
from_GstVideoOverlayFormatFlags (guint ovl_flags)
{
guint flags = 0;
if (ovl_flags & GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA)
flags |= GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA;
if (ovl_flags & GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA)
flags |= GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA;
return flags;
}
/**
* to_GstVideoOverlayFormatFlags:
* @flags: the #GstVaapiSubpictureFlags flags to translate
*
* Converts #GstVaapiSubpictureFlags to #GstVideoOverlayFormatFlags.
*
* Return value: the #GstVideoOverlayFormatFlags flags
*/
guint
to_GstVideoOverlayFormatFlags (guint flags)
{
guint ovl_flags = 0;
if (flags & GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA)
ovl_flags |= GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA;
if (flags & GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA)
ovl_flags |= GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA;
return ovl_flags;
}
/**
* from_GstVaapiSurfaceRenderFlags:
* @flags: the #GstVaapiSurfaceRenderFlags
*
* Converts #GstVaapiSurfaceRenderFlags to flags suitable for
* vaPutSurface().
*/
guint
from_GstVaapiSurfaceRenderFlags (guint flags)
{
guint va_fields, va_csc;
/* Picture structure */
switch (flags & GST_VAAPI_PICTURE_STRUCTURE_MASK) {
case GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD:
va_fields = VA_TOP_FIELD;
break;
case GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD:
va_fields = VA_BOTTOM_FIELD;
break;
default:
va_fields = VA_FRAME_PICTURE;
break;
}
/* Color standard */
switch (flags & GST_VAAPI_COLOR_STANDARD_MASK) {
#ifdef VA_SRC_BT601
case GST_VAAPI_COLOR_STANDARD_ITUR_BT_601:
va_csc = VA_SRC_BT601;
break;
#endif
#ifdef VA_SRC_BT709
case GST_VAAPI_COLOR_STANDARD_ITUR_BT_709:
va_csc = VA_SRC_BT709;
break;
#endif
#ifdef VA_SRC_SMPTE_240
case GST_VAAPI_COLOR_STANDARD_SMPTE_240M:
va_csc = VA_SRC_SMPTE_240;
break;
#endif
default:
va_csc = 0;
break;
}
return va_fields | va_csc;
}
/**
* to_GstVaapiSurfaceStatus:
* @flags: the #GstVaapiSurfaceStatus flags to translate
*
* Converts vaQuerySurfaceStatus() @flags to #GstVaapiSurfaceStatus
* flags.
*
* Return value: the #GstVaapiSurfaceStatus flags
*/
guint
to_GstVaapiSurfaceStatus (guint va_flags)
{
guint flags;
const guint va_flags_mask = (VASurfaceReady |
VASurfaceRendering | VASurfaceDisplaying);
/* Check for core status */
switch (va_flags & va_flags_mask) {
case VASurfaceReady:
flags = GST_VAAPI_SURFACE_STATUS_IDLE;
break;
case VASurfaceRendering:
flags = GST_VAAPI_SURFACE_STATUS_RENDERING;
break;
case VASurfaceDisplaying:
flags = GST_VAAPI_SURFACE_STATUS_DISPLAYING;
break;
default:
flags = 0;
break;
}
/* Check for encoder status */
#if VA_CHECK_VERSION(0,30,0)
if (va_flags & VASurfaceSkipped)
flags |= GST_VAAPI_SURFACE_STATUS_SKIPPED;
#endif
return flags;
}
/* Translate GstVaapiRotation value to VA-API rotation value */
guint
from_GstVaapiRotation (guint value)
{
switch (value) {
case GST_VAAPI_ROTATION_0:
return VA_ROTATION_NONE;
case GST_VAAPI_ROTATION_90:
return VA_ROTATION_90;
case GST_VAAPI_ROTATION_180:
return VA_ROTATION_180;
case GST_VAAPI_ROTATION_270:
return VA_ROTATION_270;
}
GST_ERROR ("unsupported GstVaapiRotation value %d", value);
return VA_ROTATION_NONE;
}
/* Translate VA-API rotation value to GstVaapiRotation value */
guint
to_GstVaapiRotation (guint value)
{
switch (value) {
case VA_ROTATION_NONE:
return GST_VAAPI_ROTATION_0;
case VA_ROTATION_90:
return GST_VAAPI_ROTATION_90;
case VA_ROTATION_180:
return GST_VAAPI_ROTATION_180;
case VA_ROTATION_270:
return GST_VAAPI_ROTATION_270;
}
GST_ERROR ("unsupported VA-API rotation value %d", value);
return GST_VAAPI_ROTATION_0;
}
guint
from_GstVaapiRateControl (guint value)
{
switch (value) {
case GST_VAAPI_RATECONTROL_NONE:
return VA_RC_NONE;
#ifdef VA_RC_CQP
case GST_VAAPI_RATECONTROL_CQP:
return VA_RC_CQP;
#endif
case GST_VAAPI_RATECONTROL_CBR:
return VA_RC_CBR;
case GST_VAAPI_RATECONTROL_VCM:
return VA_RC_VCM;
case GST_VAAPI_RATECONTROL_VBR:
return VA_RC_VBR;
#ifdef VA_RC_VBR_CONSTRAINED
case GST_VAAPI_RATECONTROL_VBR_CONSTRAINED:
return VA_RC_VBR_CONSTRAINED;
#endif
#ifdef VA_RC_MB
case GST_VAAPI_RATECONTROL_MB:
return VA_RC_MB;
#endif
}
GST_ERROR ("unsupported GstVaapiRateControl value %u", value);
return VA_RC_NONE;
}
guint
to_GstVaapiRateControl (guint value)
{
switch (value) {
case VA_RC_NONE:
return GST_VAAPI_RATECONTROL_NONE;
#ifdef VA_RC_CQP
case VA_RC_CQP:
return GST_VAAPI_RATECONTROL_CQP;
#endif
case VA_RC_CBR:
return GST_VAAPI_RATECONTROL_CBR;
case VA_RC_VCM:
return GST_VAAPI_RATECONTROL_VCM;
case VA_RC_VBR:
return GST_VAAPI_RATECONTROL_VBR;
#ifdef VA_RC_VBR_CONSTRAINED
case VA_RC_VBR_CONSTRAINED:
return GST_VAAPI_RATECONTROL_VBR_CONSTRAINED;
#endif
#ifdef VA_RC_MB
case VA_RC_MB:
return GST_VAAPI_RATECONTROL_MB;
#endif
}
GST_ERROR ("unsupported VA-API Rate Control value %u", value);
return GST_VAAPI_RATECONTROL_NONE;
}
/* VPP: translate GstVaapiDeinterlaceMethod to VA deinterlacing algorithm */
guint
from_GstVaapiDeinterlaceMethod (guint value)
{
switch (value) {
case GST_VAAPI_DEINTERLACE_METHOD_NONE:
return 0;
#if USE_VA_VPP
case GST_VAAPI_DEINTERLACE_METHOD_BOB:
return VAProcDeinterlacingBob;
case GST_VAAPI_DEINTERLACE_METHOD_WEAVE:
return VAProcDeinterlacingWeave;
case GST_VAAPI_DEINTERLACE_METHOD_MOTION_ADAPTIVE:
return VAProcDeinterlacingMotionAdaptive;
case GST_VAAPI_DEINTERLACE_METHOD_MOTION_COMPENSATED:
return VAProcDeinterlacingMotionCompensated;
#endif
}
GST_ERROR ("unsupported GstVaapiDeinterlaceMethod value %d", value);
return 0;
}
/* VPP: translate GstVaapiDeinterlaceFlags into VA deinterlacing flags */
guint
from_GstVaapiDeinterlaceFlags (guint flags)
{
guint va_flags = 0;
#if USE_VA_VPP
if (!(flags & GST_VAAPI_DEINTERLACE_FLAG_TFF))
va_flags |= VA_DEINTERLACING_BOTTOM_FIELD_FIRST;
if (flags & GST_VAAPI_DEINTERLACE_FLAG_ONEFIELD)
va_flags |= VA_DEINTERLACING_ONE_FIELD;
if (!(flags & GST_VAAPI_DEINTERLACE_FLAG_TOPFIELD))
va_flags |= VA_DEINTERLACING_BOTTOM_FIELD;
#endif
return va_flags;
}
/* VPP: translate GstVaapiScaleMethod into VA scaling flags */
guint
from_GstVaapiScaleMethod (guint value)
{
guint va_flags;
switch (value) {
case GST_VAAPI_SCALE_METHOD_DEFAULT:
va_flags = VA_FILTER_SCALING_DEFAULT;
break;
case GST_VAAPI_SCALE_METHOD_FAST:
va_flags = VA_FILTER_SCALING_FAST;
break;
case GST_VAAPI_SCALE_METHOD_HQ:
va_flags = VA_FILTER_SCALING_HQ;
break;
default:
va_flags = 0;
break;
}
return va_flags;
}
/* VPP: translate VA scaling flags into GstVaapiScale Method */
guint
to_GstVaapiScaleMethod (guint flags)
{
GstVaapiScaleMethod method;
switch (flags) {
case VA_FILTER_SCALING_FAST:
method = GST_VAAPI_SCALE_METHOD_FAST;
break;
case VA_FILTER_SCALING_HQ:
method = GST_VAAPI_SCALE_METHOD_HQ;
break;
default:
method = GST_VAAPI_SCALE_METHOD_DEFAULT;
break;
}
return method;
}