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gstreamer/subprojects/gst-plugins-bad/sys/va/gstvavpp.c

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/* 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 the0
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-vapostproc
* @title: vapostproc
* @short_description: A VA-API base video postprocessing filter
*
* vapostproc applies different video filters to VA surfaces. These
* filters vary depending on the installed and chosen
* [VA-API](https://01.org/linuxmedia/vaapi) driver, but usually
* resizing and color conversion are available.
*
* The generated surfaces can be mapped onto main memory as video
* frames.
*
* Use gst-inspect-1.0 to introspect the available capabilities of the
* driver's post-processor entry point.
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! "video/x-raw,format=(string)NV12" ! vapostproc ! autovideosink
* ```
*
* Cropping is supported via buffers' crop meta. It's only done if the
* postproccessor is not in passthrough mode or if downstream doesn't
* support the crop meta API.
*
* ### Cropping example
* ```
* gst-launch-1.0 videotestsrc ! "video/x-raw,format=(string)NV12" ! videocrop bottom=50 left=100 ! vapostproc ! autovideosink
* ```
*
* If the VA driver support color balance filter, with controls such
* as hue, brightness, contrast, etc., those controls are exposed both
* as element properties and through the #GstColorBalance interface.
*
* Since: 1.20
*
*/
/* ToDo:
*
* + HDR tone mapping
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvavpp.h"
#include <gst/video/video.h>
#include <va/va_drmcommon.h>
#include "gstvaallocator.h"
#include "gstvabasetransform.h"
#include "gstvacaps.h"
#include "gstvadisplay_priv.h"
#include "gstvafilter.h"
#include "gstvapool.h"
#include "gstvautils.h"
GST_DEBUG_CATEGORY_STATIC (gst_va_vpp_debug);
#define GST_CAT_DEFAULT gst_va_vpp_debug
#define GST_VA_VPP(obj) ((GstVaVpp *) obj)
#define GST_VA_VPP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), G_TYPE_FROM_INSTANCE (obj), GstVaVppClass))
#define GST_VA_VPP_CLASS(klass) ((GstVaVppClass *) klass)
#define SWAP(a, b) do { const __typeof__ (a) t = a; a = b; b = t; } while (0)
typedef struct _GstVaVpp GstVaVpp;
typedef struct _GstVaVppClass GstVaVppClass;
struct _GstVaVppClass
{
/* GstVideoFilter overlaps functionality */
GstVaBaseTransformClass parent_class;
};
struct _GstVaVpp
{
GstVaBaseTransform parent;
gboolean rebuild_filters;
guint op_flags;
/* filters */
float denoise;
float sharpen;
float skintone;
float brightness;
float contrast;
float hue;
float saturation;
gboolean auto_contrast;
gboolean auto_brightness;
gboolean auto_saturation;
GstVideoOrientationMethod direction;
GstVideoOrientationMethod prev_direction;
GstVideoOrientationMethod tag_direction;
GList *channels;
};
static GstElementClass *parent_class = NULL;
struct CData
{
gchar *render_device_path;
gchar *description;
};
/* convertions that disable passthrough */
enum
{
VPP_CONVERT_SIZE = 1 << 0,
VPP_CONVERT_FORMAT = 1 << 1,
VPP_CONVERT_FILTERS = 1 << 2,
VPP_CONVERT_DIRECTION = 1 << 3,
VPP_CONVERT_FEATURE = 1 << 4,
VPP_CONVERT_CROP = 1 << 5,
VPP_CONVERT_DUMMY = 1 << 6,
};
/* *INDENT-OFF* */
static const gchar *caps_str =
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_VA,
"{ NV12, I420, YV12, YUY2, RGBA, BGRA, P010_10LE, ARGB, ABGR }") " ;"
GST_VIDEO_CAPS_MAKE ("{ VUYA, GRAY8, NV12, NV21, YUY2, UYVY, YV12, "
"I420, P010_10LE, RGBA, BGRA, ARGB, ABGR }");
/* *INDENT-ON* */
#define META_TAG_COLORSPACE meta_tag_colorspace_quark
static GQuark meta_tag_colorspace_quark;
#define META_TAG_SIZE meta_tag_size_quark
static GQuark meta_tag_size_quark;
#define META_TAG_ORIENTATION meta_tag_orientation_quark
static GQuark meta_tag_orientation_quark;
#define META_TAG_VIDEO meta_tag_video_quark
static GQuark meta_tag_video_quark;
static void gst_va_vpp_colorbalance_init (gpointer iface, gpointer data);
static void gst_va_vpp_rebuild_filters (GstVaVpp * self);
static void
gst_va_vpp_dispose (GObject * object)
{
GstVaVpp *self = GST_VA_VPP (object);
if (self->channels)
g_list_free_full (g_steal_pointer (&self->channels), g_object_unref);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_va_vpp_update_passthrough (GstVaVpp * self, gboolean reconf)
{
GstBaseTransform *trans = GST_BASE_TRANSFORM (self);
gboolean old, new;
old = gst_base_transform_is_passthrough (trans);
GST_OBJECT_LOCK (self);
new = (self->op_flags == 0);
GST_OBJECT_UNLOCK (self);
if (old != new) {
GST_INFO_OBJECT (self, "%s passthrough", new ? "enabling" : "disabling");
if (reconf)
gst_base_transform_reconfigure_src (trans);
gst_base_transform_set_passthrough (trans, new);
}
}
static void
_update_properties_unlocked (GstVaVpp * self)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
if (!btrans->filter)
return;
if ((self->direction != GST_VIDEO_ORIENTATION_AUTO
&& self->direction != self->prev_direction)
|| (self->direction == GST_VIDEO_ORIENTATION_AUTO
&& self->tag_direction != self->prev_direction)) {
GstVideoOrientationMethod direction =
(self->direction == GST_VIDEO_ORIENTATION_AUTO) ?
self->tag_direction : self->direction;
if (!gst_va_filter_set_orientation (btrans->filter, direction)) {
if (self->direction == GST_VIDEO_ORIENTATION_AUTO)
self->tag_direction = self->prev_direction;
else
self->direction = self->prev_direction;
self->op_flags &= ~VPP_CONVERT_DIRECTION;
/* FIXME: unlocked bus warning message */
GST_WARNING_OBJECT (self,
"Driver cannot set resquested orientation. Setting it back.");
} else {
self->prev_direction = direction;
self->op_flags |= VPP_CONVERT_DIRECTION;
gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (self));
}
} else {
self->op_flags &= ~VPP_CONVERT_DIRECTION;
}
}
static void
gst_va_vpp_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVaVpp *self = GST_VA_VPP (object);
GST_OBJECT_LOCK (object);
switch (prop_id) {
case GST_VA_FILTER_PROP_DENOISE:
self->denoise = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_SHARPEN:
self->sharpen = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_SKINTONE:
if (G_VALUE_TYPE (value) == G_TYPE_BOOLEAN)
self->skintone = (float) g_value_get_boolean (value);
else
self->skintone = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_VIDEO_DIR:{
GstVideoOrientationMethod direction = g_value_get_enum (value);
self->prev_direction = (direction == GST_VIDEO_ORIENTATION_AUTO) ?
self->tag_direction : self->direction;
self->direction = direction;
break;
}
case GST_VA_FILTER_PROP_HUE:
self->hue = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_SATURATION:
self->saturation = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_BRIGHTNESS:
self->brightness = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_CONTRAST:
self->contrast = g_value_get_float (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_AUTO_SATURATION:
self->auto_saturation = g_value_get_boolean (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_AUTO_BRIGHTNESS:
self->auto_brightness = g_value_get_boolean (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_AUTO_CONTRAST:
self->auto_contrast = g_value_get_boolean (value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
break;
case GST_VA_FILTER_PROP_DISABLE_PASSTHROUGH:{
gboolean disable_passthrough = g_value_get_boolean (value);
if (disable_passthrough)
self->op_flags |= VPP_CONVERT_DUMMY;
else
self->op_flags &= ~VPP_CONVERT_DUMMY;
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
_update_properties_unlocked (self);
GST_OBJECT_UNLOCK (object);
gst_va_vpp_update_passthrough (self, FALSE);
}
static void
gst_va_vpp_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVaVpp *self = GST_VA_VPP (object);
GST_OBJECT_LOCK (object);
switch (prop_id) {
case GST_VA_FILTER_PROP_DENOISE:
g_value_set_float (value, self->denoise);
break;
case GST_VA_FILTER_PROP_SHARPEN:
g_value_set_float (value, self->sharpen);
break;
case GST_VA_FILTER_PROP_SKINTONE:
if (G_VALUE_TYPE (value) == G_TYPE_BOOLEAN)
g_value_set_boolean (value, self->skintone > 0);
else
g_value_set_float (value, self->skintone);
break;
case GST_VA_FILTER_PROP_VIDEO_DIR:
g_value_set_enum (value, self->direction);
break;
case GST_VA_FILTER_PROP_HUE:
g_value_set_float (value, self->hue);
break;
case GST_VA_FILTER_PROP_SATURATION:
g_value_set_float (value, self->saturation);
break;
case GST_VA_FILTER_PROP_BRIGHTNESS:
g_value_set_float (value, self->brightness);
break;
case GST_VA_FILTER_PROP_CONTRAST:
g_value_set_float (value, self->contrast);
break;
case GST_VA_FILTER_PROP_AUTO_SATURATION:
g_value_set_boolean (value, self->auto_saturation);
break;
case GST_VA_FILTER_PROP_AUTO_BRIGHTNESS:
g_value_set_boolean (value, self->auto_brightness);
break;
case GST_VA_FILTER_PROP_AUTO_CONTRAST:
g_value_set_boolean (value, self->auto_contrast);
break;
case GST_VA_FILTER_PROP_DISABLE_PASSTHROUGH:
g_value_set_boolean (value, (self->op_flags & VPP_CONVERT_DUMMY));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (object);
}
static gboolean
gst_va_vpp_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
/* if we are not passthrough, we can handle crop meta */
if (decide_query)
gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL);
return GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query);
}
static void
gst_va_vpp_update_properties (GstVaBaseTransform * btrans)
{
GstVaVpp *self = GST_VA_VPP (btrans);
gst_va_vpp_rebuild_filters (self);
_update_properties_unlocked (self);
}
static gboolean
gst_va_vpp_set_info (GstVaBaseTransform * btrans, GstCaps * incaps,
GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
{
GstVaVpp *self = GST_VA_VPP (btrans);
GstCapsFeatures *infeat, *outfeat;
if (!gst_video_info_is_equal (in_info, out_info)) {
if (GST_VIDEO_INFO_FORMAT (in_info) != GST_VIDEO_INFO_FORMAT (out_info))
self->op_flags |= VPP_CONVERT_FORMAT;
else
self->op_flags &= ~VPP_CONVERT_FORMAT;
if (GST_VIDEO_INFO_WIDTH (in_info) != GST_VIDEO_INFO_WIDTH (out_info)
|| GST_VIDEO_INFO_HEIGHT (in_info) != GST_VIDEO_INFO_HEIGHT (out_info))
self->op_flags |= VPP_CONVERT_SIZE;
else
self->op_flags &= ~VPP_CONVERT_SIZE;
} else {
self->op_flags &= ~VPP_CONVERT_FORMAT & ~VPP_CONVERT_SIZE;
}
infeat = gst_caps_get_features (incaps, 0);
outfeat = gst_caps_get_features (outcaps, 0);
if (!gst_caps_features_is_equal (infeat, outfeat))
self->op_flags |= VPP_CONVERT_FEATURE;
else
self->op_flags &= ~VPP_CONVERT_FEATURE;
if (gst_va_filter_set_video_info (btrans->filter, in_info, out_info)) {
gst_va_vpp_update_passthrough (self, FALSE);
return TRUE;
}
return FALSE;
}
static inline gboolean
_get_filter_value (GstVaVpp * self, VAProcFilterType type, gfloat * value)
{
gboolean ret = TRUE;
GST_OBJECT_LOCK (self);
switch (type) {
case VAProcFilterNoiseReduction:
*value = self->denoise;
break;
case VAProcFilterSharpening:
*value = self->sharpen;
break;
case VAProcFilterSkinToneEnhancement:
*value = self->skintone;
break;
default:
ret = FALSE;
break;
}
GST_OBJECT_UNLOCK (self);
return ret;
}
static inline gboolean
_add_filter_buffer (GstVaVpp * self, VAProcFilterType type,
const VAProcFilterCap * cap)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
VAProcFilterParameterBuffer param;
gfloat value = 0;
if (!_get_filter_value (self, type, &value))
return FALSE;
if (value == cap->range.default_value)
return FALSE;
/* *INDENT-OFF* */
param = (VAProcFilterParameterBuffer) {
.type = type,
.value = value,
};
/* *INDENT-ON* */
return gst_va_filter_add_filter_buffer (btrans->filter, &param,
sizeof (param), 1);
}
static inline gboolean
_get_filter_cb_value (GstVaVpp * self, VAProcColorBalanceType type,
gfloat * value)
{
gboolean ret = TRUE;
GST_OBJECT_LOCK (self);
switch (type) {
case VAProcColorBalanceHue:
*value = self->hue;
break;
case VAProcColorBalanceSaturation:
*value = self->saturation;
break;
case VAProcColorBalanceBrightness:
*value = self->brightness;
break;
case VAProcColorBalanceContrast:
*value = self->contrast;
break;
case VAProcColorBalanceAutoSaturation:
*value = self->auto_saturation;
break;
case VAProcColorBalanceAutoBrightness:
*value = self->auto_brightness;
break;
case VAProcColorBalanceAutoContrast:
*value = self->auto_contrast;
break;
default:
ret = FALSE;
break;
}
GST_OBJECT_UNLOCK (self);
return ret;
}
static inline gboolean
_add_filter_cb_buffer (GstVaVpp * self,
const VAProcFilterCapColorBalance * caps, guint num_caps)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
VAProcFilterParameterBufferColorBalance param[VAProcColorBalanceCount] =
{ 0, };
gfloat value;
guint i, c = 0;
value = 0;
for (i = 0; i < num_caps && i < VAProcColorBalanceCount; i++) {
if (!_get_filter_cb_value (self, caps[i].type, &value))
continue;
if (value == caps[i].range.default_value)
continue;
/* *INDENT-OFF* */
param[c++] = (VAProcFilterParameterBufferColorBalance) {
.type = VAProcFilterColorBalance,
.attrib = caps[i].type,
.value = value,
};
/* *INDENT-ON* */
}
if (c > 0) {
return gst_va_filter_add_filter_buffer (btrans->filter, param,
sizeof (*param), c);
}
return FALSE;
}
static void
_build_filters (GstVaVpp * self)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
static const VAProcFilterType filter_types[] = { VAProcFilterNoiseReduction,
VAProcFilterSharpening, VAProcFilterSkinToneEnhancement,
VAProcFilterColorBalance,
};
guint i, num_caps;
gboolean apply = FALSE;
for (i = 0; i < G_N_ELEMENTS (filter_types); i++) {
const gpointer caps = gst_va_filter_get_filter_caps (btrans->filter,
filter_types[i], &num_caps);
if (!caps)
continue;
switch (filter_types[i]) {
case VAProcFilterNoiseReduction:
apply |= _add_filter_buffer (self, filter_types[i], caps);
break;
case VAProcFilterSharpening:
apply |= _add_filter_buffer (self, filter_types[i], caps);
break;
case VAProcFilterSkinToneEnhancement:
apply |= _add_filter_buffer (self, filter_types[i], caps);
break;
case VAProcFilterColorBalance:
apply |= _add_filter_cb_buffer (self, caps, num_caps);
break;
default:
break;
}
}
GST_OBJECT_LOCK (self);
if (apply)
self->op_flags |= VPP_CONVERT_FILTERS;
else
self->op_flags &= ~VPP_CONVERT_FILTERS;
GST_OBJECT_UNLOCK (self);
}
static void
gst_va_vpp_rebuild_filters (GstVaVpp * self)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
if (!g_atomic_int_get (&self->rebuild_filters))
return;
gst_va_filter_drop_filter_buffers (btrans->filter);
_build_filters (self);
g_atomic_int_set (&self->rebuild_filters, FALSE);
}
static void
gst_va_vpp_before_transform (GstBaseTransform * trans, GstBuffer * inbuf)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
GstClockTime ts, stream_time;
gboolean is_passthrough;
ts = GST_BUFFER_TIMESTAMP (inbuf);
stream_time =
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, ts);
GST_TRACE_OBJECT (self, "sync to %" GST_TIME_FORMAT, GST_TIME_ARGS (ts));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (GST_OBJECT (self), stream_time);
gst_va_vpp_rebuild_filters (self);
gst_va_vpp_update_passthrough (self, TRUE);
/* cropping is only enabled if vapostproc is not in passthrough */
is_passthrough = gst_base_transform_is_passthrough (trans);
GST_OBJECT_LOCK (self);
if (!is_passthrough && gst_buffer_get_video_crop_meta (inbuf)) {
self->op_flags |= VPP_CONVERT_CROP;
} else {
self->op_flags &= ~VPP_CONVERT_CROP;
}
gst_va_filter_enable_cropping (btrans->filter,
(self->op_flags & VPP_CONVERT_CROP));
GST_OBJECT_UNLOCK (self);
}
static GstFlowReturn
gst_va_vpp_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (trans);
GstBuffer *buf = NULL;
GstFlowReturn res = GST_FLOW_OK;
GstVaSample src, dst;
if (G_UNLIKELY (!btrans->negotiated))
goto unknown_format;
res = gst_va_base_transform_import_buffer (btrans, inbuf, &buf);
if (res != GST_FLOW_OK)
return res;
/* *INDENT-OFF* */
src = (GstVaSample) {
.buffer = buf,
};
dst = (GstVaSample) {
.buffer = outbuf,
};
/* *INDENT-ON* */
if (!gst_va_filter_process (btrans->filter, &src, &dst)) {
gst_buffer_set_flags (outbuf, GST_BUFFER_FLAG_CORRUPTED);
}
gst_buffer_unref (buf);
return res;
/* ERRORS */
unknown_format:
{
GST_ELEMENT_ERROR (self, CORE, NOT_IMPLEMENTED, (NULL), ("unknown format"));
return GST_FLOW_NOT_NEGOTIATED;
}
}
static gboolean
gst_va_vpp_transform_meta (GstBaseTransform * trans, GstBuffer * inbuf,
GstMeta * meta, GstBuffer * outbuf)
{
GstVaVpp *self = GST_VA_VPP (trans);
const GstMetaInfo *info = meta->info;
const gchar *const *tags;
tags = gst_meta_api_type_get_tags (info->api);
if (!tags)
return TRUE;
/* don't copy colorspace/size/orientation specific metadata */
if ((self->op_flags & VPP_CONVERT_FORMAT)
&& gst_meta_api_type_has_tag (info->api, META_TAG_COLORSPACE))
return FALSE;
else if ((self->op_flags & (VPP_CONVERT_SIZE | VPP_CONVERT_CROP))
&& gst_meta_api_type_has_tag (info->api, META_TAG_SIZE))
return FALSE;
else if ((self->op_flags & VPP_CONVERT_DIRECTION)
&& gst_meta_api_type_has_tag (info->api, META_TAG_ORIENTATION))
return FALSE;
else if (gst_meta_api_type_has_tag (info->api, META_TAG_VIDEO))
return TRUE;
return FALSE;
}
/* Remove all the info for the cases when we can actually convert:
* Delete all the video "format", rangify the resolution size, also
* remove "colorimetry", "chroma-site" and "pixel-aspect-ratio". All
* the missing caps features should be added based on the template,
* and the caps features' order in @caps is kept */
static GstCaps *
gst_va_vpp_complete_caps_features (GstCaps * caps, GstCaps * tmpl_caps)
{
GstCaps *ret, *full_caps;
GstStructure *structure;
GstCapsFeatures *features;
gboolean has_sys_mem = FALSE, has_dma = FALSE, has_va = FALSE;
gint i, n;
full_caps = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0
&& gst_caps_is_subset_structure_full (full_caps, structure, features))
continue;
if (gst_caps_features_is_any (features))
continue;
if (gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)) {
has_sys_mem = TRUE;
} else {
gboolean valid = FALSE;
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
has_dma = TRUE;
valid = TRUE;
}
if (gst_caps_features_contains (features, "memory:VAMemory")) {
has_va = TRUE;
valid = TRUE;
}
/* Not contain our supported feature */
if (!valid)
continue;
}
structure = gst_structure_copy (structure);
gst_structure_set (structure, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (structure, "pixel-aspect-ratio")) {
gst_structure_set (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
gst_structure_remove_fields (structure, "format", "colorimetry",
"chroma-site", NULL);
gst_caps_append_structure_full (full_caps, structure,
gst_caps_features_copy (features));
}
/* Adding the missing features. */
n = gst_caps_get_size (tmpl_caps);
for (i = 0; i < n; i++) {
structure = gst_caps_get_structure (tmpl_caps, i);
features = gst_caps_get_features (tmpl_caps, i);
if (gst_caps_features_contains (features, "memory:VAMemory") && !has_va)
gst_caps_append_structure_full (full_caps, gst_structure_copy (structure),
gst_caps_features_copy (features));
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_DMABUF) && !has_dma)
gst_caps_append_structure_full (full_caps, gst_structure_copy (structure),
gst_caps_features_copy (features));
if (gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY) && !has_sys_mem)
gst_caps_append_structure_full (full_caps, gst_structure_copy (structure),
gst_caps_features_copy (features));
}
ret = gst_caps_intersect_full (full_caps, tmpl_caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (full_caps);
return ret;
}
static GstCaps *
gst_va_vpp_transform_caps (GstBaseTransform * trans, GstPadDirection direction,
GstCaps * caps, GstCaps * filter)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstCaps *ret, *tmpl_caps;
GST_DEBUG_OBJECT (self,
"Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
(direction == GST_PAD_SINK) ? "sink" : "src");
if (direction == GST_PAD_SINK) {
tmpl_caps =
gst_pad_get_pad_template_caps (GST_BASE_TRANSFORM_SRC_PAD (trans));
} else {
tmpl_caps =
gst_pad_get_pad_template_caps (GST_BASE_TRANSFORM_SINK_PAD (trans));
}
ret = gst_va_vpp_complete_caps_features (caps, tmpl_caps);
gst_caps_unref (tmpl_caps);
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
/*
* This is an incomplete matrix of in formats and a score for the preferred output
* format.
*
* out: RGB24 RGB16 ARGB AYUV YUV444 YUV422 YUV420 YUV411 YUV410 PAL GRAY
* in
* RGB24 0 2 1 2 2 3 4 5 6 7 8
* RGB16 1 0 1 2 2 3 4 5 6 7 8
* ARGB 2 3 0 1 4 5 6 7 8 9 10
* AYUV 3 4 1 0 2 5 6 7 8 9 10
* YUV444 2 4 3 1 0 5 6 7 8 9 10
* YUV422 3 5 4 2 1 0 6 7 8 9 10
* YUV420 4 6 5 3 2 1 0 7 8 9 10
* YUV411 4 6 5 3 2 1 7 0 8 9 10
* YUV410 6 8 7 5 4 3 2 1 0 9 10
* PAL 1 3 2 6 4 6 7 8 9 0 10
* GRAY 1 4 3 2 1 5 6 7 8 9 0
*
* PAL or GRAY are never preferred, if we can we would convert to PAL instead
* of GRAY, though
* less subsampling is preferred and if any, preferably horizontal
* We would like to keep the alpha, even if we would need to to colorspace conversion
* or lose depth.
*/
#define SCORE_FORMAT_CHANGE 1
#define SCORE_DEPTH_CHANGE 1
#define SCORE_ALPHA_CHANGE 1
#define SCORE_CHROMA_W_CHANGE 1
#define SCORE_CHROMA_H_CHANGE 1
#define SCORE_PALETTE_CHANGE 1
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
#define SCORE_DEPTH_LOSS 4 /* change bit depth */
#define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */
#define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */
#define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */
#define SCORE_PALETTE_LOSS 64 /* convert to palette format */
#define SCORE_COLOR_LOSS 128 /* convert to GRAY */
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
#define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA)
#define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE)
/* calculate how much loss a conversion would be */
static void
score_value (GstVaVpp * self, const GstVideoFormatInfo * in_info,
const GValue * val, gint * min_loss, const GstVideoFormatInfo ** out_info)
{
const gchar *fname;
const GstVideoFormatInfo *t_info;
GstVideoFormatFlags in_flags, t_flags;
gint loss;
fname = g_value_get_string (val);
t_info = gst_video_format_get_info (gst_video_format_from_string (fname));
if (!t_info || t_info->format == GST_VIDEO_FORMAT_UNKNOWN)
return;
/* accept input format immediately without loss */
if (in_info == t_info) {
*min_loss = 0;
*out_info = t_info;
return;
}
loss = SCORE_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) {
loss += SCORE_PALETTE_CHANGE;
if (t_flags & PALETTE_MASK)
loss += SCORE_PALETTE_LOSS;
}
if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
loss += SCORE_COLORSPACE_LOSS;
if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
loss += SCORE_COLOR_LOSS;
}
if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) {
loss += SCORE_ALPHA_CHANGE;
if (in_flags & ALPHA_MASK)
loss += SCORE_ALPHA_LOSS;
}
if ((in_info->h_sub[1]) != (t_info->h_sub[1])) {
loss += SCORE_CHROMA_H_CHANGE;
if ((in_info->h_sub[1]) < (t_info->h_sub[1]))
loss += SCORE_CHROMA_H_LOSS;
}
if ((in_info->w_sub[1]) != (t_info->w_sub[1])) {
loss += SCORE_CHROMA_W_CHANGE;
if ((in_info->w_sub[1]) < (t_info->w_sub[1]))
loss += SCORE_CHROMA_W_LOSS;
}
if ((in_info->bits) != (t_info->bits)) {
loss += SCORE_DEPTH_CHANGE;
if ((in_info->bits) > (t_info->bits))
loss += SCORE_DEPTH_LOSS;
}
GST_DEBUG_OBJECT (self, "score %s -> %s = %d",
GST_VIDEO_FORMAT_INFO_NAME (in_info),
GST_VIDEO_FORMAT_INFO_NAME (t_info), loss);
if (loss < *min_loss) {
GST_DEBUG_OBJECT (self, "found new best %d", loss);
*out_info = t_info;
*min_loss = loss;
}
}
static void
gst_va_vpp_fixate_format (GstVaVpp * self, GstCaps * caps, GstCaps * result)
{
GstStructure *ins, *outs;
const gchar *in_format;
const GstVideoFormatInfo *in_info, *out_info = NULL;
gint min_loss = G_MAXINT;
guint i, capslen;
ins = gst_caps_get_structure (caps, 0);
in_format = gst_structure_get_string (ins, "format");
if (!in_format)
return;
GST_DEBUG_OBJECT (self, "source format %s", in_format);
in_info =
gst_video_format_get_info (gst_video_format_from_string (in_format));
if (!in_info)
return;
outs = gst_caps_get_structure (result, 0);
capslen = gst_caps_get_size (result);
GST_DEBUG_OBJECT (self, "iterate %d structures", capslen);
for (i = 0; i < capslen; i++) {
GstStructure *tests;
const GValue *format;
tests = gst_caps_get_structure (result, i);
format = gst_structure_get_value (tests, "format");
gst_structure_remove_fields (tests, "height", "width", "pixel-aspect-ratio",
"display-aspect-ratio", NULL);
/* should not happen */
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG_OBJECT (self, "have %d formats", len);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
score_value (self, in_info, val, &min_loss, &out_info);
if (min_loss == 0)
break;
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
score_value (self, in_info, format, &min_loss, &out_info);
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
}
static GstCaps *
gst_va_vpp_get_fixed_format (GstVaVpp * self, GstPadDirection direction,
GstCaps * caps, GstCaps * othercaps)
{
GstCaps *result;
result = gst_caps_intersect (othercaps, caps);
if (gst_caps_is_empty (result)) {
gst_caps_unref (result);
result = gst_caps_copy (othercaps);
}
gst_va_vpp_fixate_format (self, caps, result);
/* fixate remaining fields */
result = gst_caps_fixate (result);
if (direction == GST_PAD_SINK) {
if (gst_caps_is_subset (caps, result)) {
gst_caps_replace (&result, caps);
}
}
return result;
}
static GstCaps *
gst_va_vpp_fixate_size (GstVaVpp * self, GstPadDirection direction,
GstCaps * caps, GstCaps * othercaps)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
GstStructure *ins, *outs;
const GValue *from_par, *to_par;
GValue fpar = { 0, };
GValue tpar = { 0, };
othercaps = gst_caps_truncate (othercaps);
othercaps = gst_caps_make_writable (othercaps);
ins = gst_caps_get_structure (caps, 0);
outs = gst_caps_get_structure (othercaps, 0);
from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
/* If we're fixating from the sinkpad we always set the PAR and
* assume that missing PAR on the sinkpad means 1/1 and
* missing PAR on the srcpad means undefined
*/
if (direction == GST_PAD_SINK) {
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION_RANGE);
gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1);
to_par = &tpar;
}
} else {
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&tpar, 1, 1);
to_par = &tpar;
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
NULL);
}
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
}
/* we have both PAR but they might not be fixated */
{
gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
gint w = 0, h = 0;
gint from_dar_n, from_dar_d;
gint num, den;
/* from_par should be fixed */
g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
gst_structure_get_int (outs, "width", &w);
gst_structure_get_int (outs, "height", &h);
/* if video-orientation changes */
switch (gst_va_filter_get_orientation (btrans->filter)) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UL_LR:
case GST_VIDEO_ORIENTATION_UR_LL:
if (direction == GST_PAD_SINK) {
SWAP (from_w, from_h);
SWAP (from_par_n, from_par_d);
} else if (direction == GST_PAD_SRC) {
SWAP (w, h);
/* there's no need to swap 1/1 par */
}
break;
default:
break;
}
/* if both width and height are already fixed, we can't do anything
* about it anymore */
if (w && h) {
guint n, d;
GST_DEBUG_OBJECT (self, "dimensions already set to %dx%d, not fixating",
w, h);
if (!gst_value_is_fixed (to_par)) {
if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
from_par_n, from_par_d, w, h)) {
GST_DEBUG_OBJECT (self, "fixating to_par to %dx%d", n, d);
if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", n, d);
else if (n != d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
n, d, NULL);
}
}
goto done;
}
/* Calculate input DAR */
if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
&from_dar_n, &from_dar_d)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
GST_DEBUG_OBJECT (self, "Input DAR is %d/%d", from_dar_n, from_dar_d);
/* If either width or height are fixed there's not much we
* can do either except choosing a height or width and PAR
* that matches the DAR as good as possible
*/
if (h) {
GstStructure *tmp;
gint set_w, set_par_n, set_par_d;
GST_DEBUG_OBJECT (self, "height is fixed (%d)", h);
/* If the PAR is fixed too, there's not much to do
* except choosing the width that is nearest to the
* width with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (self, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input width */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "width", G_TYPE_INT, set_w,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the width to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (w) {
GstStructure *tmp;
gint set_h, set_par_n, set_par_d;
GST_DEBUG_OBJECT (self, "width is fixed (%d)", w);
/* If the PAR is fixed too, there's not much to do
* except choosing the height that is nearest to the
* height with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (self, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input height */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "height", G_TYPE_INT, set_h,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the height to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scale sized - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (gst_value_is_fixed (to_par)) {
GstStructure *tmp;
gint set_h, set_w, f_h, f_w;
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
/* Calculate scale factor for the PAR change */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
to_par_d, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
/* Try to keep the input height (because of interlacing) */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &set_w);
gst_structure_free (tmp);
/* We kept the DAR and the height is nearest to the original height */
if (set_w == w) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
f_h = set_h;
f_w = set_w;
/* If the former failed, try to keep the input width at least */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_free (tmp);
/* We kept the DAR and the width is nearest to the original width */
if (set_h == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
/* If all this failed, keep the dimensions with the DAR that was closest
* to the correct DAR. This changes the DAR but there's not much else to
* do here.
*/
if (set_w * ABS (set_h - h) < ABS (f_w - w) * f_h) {
f_h = set_h;
f_w = set_w;
}
gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
f_h, NULL);
goto done;
} else {
GstStructure *tmp;
gint set_h, set_w, set_par_n, set_par_d, tmp2;
/* width, height and PAR are not fixed but passthrough is not possible */
/* First try to keep the height and width as good as possible
* and scale PAR */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
if (set_par_n == to_par_n && set_par_d == to_par_d) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* Otherwise try to scale width to keep the DAR with the set
* PAR and height */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &tmp2);
gst_structure_free (tmp);
if (tmp2 == w) {
gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* ... or try the same with the height */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &tmp2);
gst_structure_free (tmp);
if (tmp2 == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, tmp2, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* If all fails we can't keep the DAR and take the nearest values
* for everything from the first try */
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
}
}
done:
if (from_par == &fpar)
g_value_unset (&fpar);
if (to_par == &tpar)
g_value_unset (&tpar);
return othercaps;
}
static GstCaps *
gst_va_vpp_fixate_caps (GstBaseTransform * trans, GstPadDirection direction,
GstCaps * caps, GstCaps * othercaps)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstCaps *format;
GST_DEBUG_OBJECT (self,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
format = gst_va_vpp_get_fixed_format (self, direction, caps, othercaps);
if (gst_caps_is_empty (format)) {
GST_ERROR_OBJECT (self, "Could not convert formats");
return format;
}
othercaps = gst_va_vpp_fixate_size (self, direction, caps, othercaps);
if (gst_caps_get_size (othercaps) == 1) {
gint i;
const gchar *format_fields[] = { "format", "colorimetry", "chroma-site" };
GstStructure *format_struct = gst_caps_get_structure (format, 0);
GstStructure *fixated_struct;
othercaps = gst_caps_make_writable (othercaps);
fixated_struct = gst_caps_get_structure (othercaps, 0);
for (i = 0; i < G_N_ELEMENTS (format_fields); i++) {
if (gst_structure_has_field (format_struct, format_fields[i])) {
gst_structure_set (fixated_struct, format_fields[i], G_TYPE_STRING,
gst_structure_get_string (format_struct, format_fields[i]), NULL);
} else {
gst_structure_remove_field (fixated_struct, format_fields[i]);
}
}
/* copy the framerate */
{
const GValue *framerate =
gst_structure_get_value (fixated_struct, "framerate");
if (framerate && !gst_value_is_fixed (framerate)) {
GstStructure *st = gst_caps_get_structure (caps, 0);
const GValue *fixated_framerate =
gst_structure_get_value (st, "framerate");
gst_structure_set_value (fixated_struct, "framerate",
fixated_framerate);
}
}
}
gst_caps_unref (format);
GST_DEBUG_OBJECT (self, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
static void
_get_scale_factor (GstVaVpp * self, gdouble * w_factor, gdouble * h_factor)
{
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (self);
gdouble w = GST_VIDEO_INFO_WIDTH (&btrans->in_info);
gdouble h = GST_VIDEO_INFO_HEIGHT (&btrans->in_info);
switch (self->direction) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UR_LL:
case GST_VIDEO_ORIENTATION_UL_LR:{
gdouble tmp = h;
h = w;
w = tmp;
break;
}
default:
break;
}
*w_factor = GST_VIDEO_INFO_WIDTH (&btrans->out_info);
*w_factor /= w;
*h_factor = GST_VIDEO_INFO_HEIGHT (&btrans->out_info);
*h_factor /= h;
}
static gboolean
gst_va_vpp_src_event (GstBaseTransform * trans, GstEvent * event)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstVaBaseTransform *btrans = GST_VA_BASE_TRANSFORM (trans);
GstStructure *structure;
const GstVideoInfo *in_info = &btrans->in_info, *out_info = &btrans->out_info;
gdouble new_x = 0, new_y = 0, x = 0, y = 0, w_factor = 1, h_factor = 1;
gboolean ret;
GST_TRACE_OBJECT (self, "handling %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
if (GST_VIDEO_INFO_WIDTH (in_info) != GST_VIDEO_INFO_WIDTH (out_info)
|| GST_VIDEO_INFO_HEIGHT (in_info) != GST_VIDEO_INFO_HEIGHT (out_info)
|| gst_va_filter_get_orientation (btrans->filter) !=
GST_VIDEO_ORIENTATION_IDENTITY) {
event =
GST_EVENT (gst_mini_object_make_writable (GST_MINI_OBJECT (event)));
structure = (GstStructure *) gst_event_get_structure (event);
if (!gst_structure_get_double (structure, "pointer_x", &x)
|| !gst_structure_get_double (structure, "pointer_y", &y))
break;
/* video-direction compensation */
switch (self->direction) {
case GST_VIDEO_ORIENTATION_90R:
new_x = y;
new_y = GST_VIDEO_INFO_WIDTH (in_info) - 1 - x;
break;
case GST_VIDEO_ORIENTATION_90L:
new_x = GST_VIDEO_INFO_HEIGHT (in_info) - 1 - y;
new_y = x;
break;
case GST_VIDEO_ORIENTATION_UR_LL:
new_x = GST_VIDEO_INFO_HEIGHT (in_info) - 1 - y;
new_y = GST_VIDEO_INFO_WIDTH (in_info) - 1 - x;
break;
case GST_VIDEO_ORIENTATION_UL_LR:
new_x = y;
new_y = x;
break;
case GST_VIDEO_ORIENTATION_180:
/* FIXME: is this correct? */
new_x = GST_VIDEO_INFO_WIDTH (in_info) - 1 - x;
new_y = GST_VIDEO_INFO_HEIGHT (in_info) - 1 - y;
break;
case GST_VIDEO_ORIENTATION_HORIZ:
new_x = GST_VIDEO_INFO_WIDTH (in_info) - 1 - x;
new_y = y;
break;
case GST_VIDEO_ORIENTATION_VERT:
new_x = x;
new_y = GST_VIDEO_INFO_HEIGHT (in_info) - 1 - y;
break;
default:
new_x = x;
new_y = y;
break;
}
/* scale compensation */
_get_scale_factor (self, &w_factor, &h_factor);
new_x *= w_factor;
new_y *= h_factor;
/* crop compensation is done by videocrop */
GST_TRACE_OBJECT (self, "from %fx%f to %fx%f", x, y, new_x, new_y);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, new_x,
"pointer_y", G_TYPE_DOUBLE, new_y, NULL);
}
break;
default:
break;
}
ret = GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
return ret;
}
static gboolean
gst_va_vpp_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstVaVpp *self = GST_VA_VPP (trans);
GstTagList *taglist;
gchar *orientation;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:
gst_event_parse_tag (event, &taglist);
if (!gst_tag_list_get_string (taglist, "image-orientation", &orientation))
break;
if (self->direction != GST_VIDEO_ORIENTATION_AUTO)
break;
GST_DEBUG_OBJECT (self, "tag orientation %s", orientation);
GST_OBJECT_LOCK (self);
if (!g_strcmp0 ("rotate-0", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_IDENTITY;
else if (!g_strcmp0 ("rotate-90", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_90R;
else if (!g_strcmp0 ("rotate-180", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_180;
else if (!g_strcmp0 ("rotate-270", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_90L;
else if (!g_strcmp0 ("flip-rotate-0", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_HORIZ;
else if (!g_strcmp0 ("flip-rotate-90", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_UL_LR;
else if (!g_strcmp0 ("flip-rotate-180", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_VERT;
else if (!g_strcmp0 ("flip-rotate-270", orientation))
self->tag_direction = GST_VIDEO_ORIENTATION_UR_LL;
_update_properties_unlocked (self);
GST_OBJECT_UNLOCK (self);
gst_va_vpp_update_passthrough (self, FALSE);
break;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
}
static void
gst_va_vpp_class_init (gpointer g_class, gpointer class_data)
{
GstCaps *doc_caps, *caps = NULL;
GstPadTemplate *sink_pad_templ, *src_pad_templ;
GObjectClass *object_class = G_OBJECT_CLASS (g_class);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (g_class);
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstVaBaseTransformClass *btrans_class = GST_VA_BASE_TRANSFORM_CLASS (g_class);
GstVaDisplay *display;
GstVaFilter *filter;
struct CData *cdata = class_data;
gchar *long_name;
parent_class = g_type_class_peek_parent (g_class);
btrans_class->render_device_path = g_strdup (cdata->render_device_path);
if (cdata->description) {
long_name = g_strdup_printf ("VA-API Video Postprocessor in %s",
cdata->description);
} else {
long_name = g_strdup ("VA-API Video Postprocessor");
}
gst_element_class_set_metadata (element_class, long_name,
"Filter/Converter/Video/Scaler/Hardware",
"VA-API based video postprocessor",
"Víctor Jáquez <vjaquez@igalia.com>");
display = gst_va_display_drm_new_from_path (btrans_class->render_device_path);
filter = gst_va_filter_new (display);
if (gst_va_filter_open (filter))
caps = gst_va_filter_get_caps (filter);
else
caps = gst_caps_from_string (caps_str);
doc_caps = gst_caps_from_string (caps_str);
sink_pad_templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
caps);
gst_element_class_add_pad_template (element_class, sink_pad_templ);
gst_pad_template_set_documentation_caps (sink_pad_templ,
gst_caps_ref (doc_caps));
src_pad_templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
caps);
gst_element_class_add_pad_template (element_class, src_pad_templ);
gst_pad_template_set_documentation_caps (src_pad_templ,
gst_caps_ref (doc_caps));
gst_caps_unref (doc_caps);
gst_caps_unref (caps);
object_class->dispose = gst_va_vpp_dispose;
object_class->set_property = gst_va_vpp_set_property;
object_class->get_property = gst_va_vpp_get_property;
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_va_vpp_propose_allocation);
trans_class->transform_caps = GST_DEBUG_FUNCPTR (gst_va_vpp_transform_caps);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_va_vpp_fixate_caps);
trans_class->before_transform =
GST_DEBUG_FUNCPTR (gst_va_vpp_before_transform);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_va_vpp_transform);
trans_class->transform_meta = GST_DEBUG_FUNCPTR (gst_va_vpp_transform_meta);
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_va_vpp_src_event);
trans_class->sink_event = GST_DEBUG_FUNCPTR (gst_va_vpp_sink_event);
trans_class->transform_ip_on_passthrough = FALSE;
btrans_class->set_info = GST_DEBUG_FUNCPTR (gst_va_vpp_set_info);
btrans_class->update_properties =
GST_DEBUG_FUNCPTR (gst_va_vpp_update_properties);
gst_va_filter_install_properties (filter, object_class);
g_free (long_name);
g_free (cdata->description);
g_free (cdata->render_device_path);
g_free (cdata);
gst_object_unref (filter);
gst_object_unref (display);
}
static inline void
_create_colorbalance_channel (GstVaVpp * self, const gchar * label)
{
GstColorBalanceChannel *channel;
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
channel->label = g_strdup_printf ("VA-%s", label);
channel->min_value = -1000;
channel->max_value = 1000;
self->channels = g_list_append (self->channels, channel);
}
static void
gst_va_vpp_init (GTypeInstance * instance, gpointer g_class)
{
GstVaVpp *self = GST_VA_VPP (instance);
GParamSpec *pspec;
self->direction = GST_VIDEO_ORIENTATION_IDENTITY;
self->prev_direction = self->direction;
self->tag_direction = GST_VIDEO_ORIENTATION_AUTO;
pspec = g_object_class_find_property (g_class, "denoise");
if (pspec)
self->denoise = g_value_get_float (g_param_spec_get_default_value (pspec));
pspec = g_object_class_find_property (g_class, "sharpen");
if (pspec)
self->sharpen = g_value_get_float (g_param_spec_get_default_value (pspec));
pspec = g_object_class_find_property (g_class, "skin-tone");
if (pspec) {
const GValue *value = g_param_spec_get_default_value (pspec);
if (G_VALUE_TYPE (value) == G_TYPE_BOOLEAN)
self->skintone = g_value_get_boolean (value);
else
self->skintone = g_value_get_float (value);
}
/* color balance */
pspec = g_object_class_find_property (g_class, "brightness");
if (pspec) {
self->brightness =
g_value_get_float (g_param_spec_get_default_value (pspec));
_create_colorbalance_channel (self, "BRIGHTNESS");
}
pspec = g_object_class_find_property (g_class, "contrast");
if (pspec) {
self->contrast = g_value_get_float (g_param_spec_get_default_value (pspec));
_create_colorbalance_channel (self, "CONTRAST");
}
pspec = g_object_class_find_property (g_class, "hue");
if (pspec) {
self->hue = g_value_get_float (g_param_spec_get_default_value (pspec));
_create_colorbalance_channel (self, "HUE");
}
pspec = g_object_class_find_property (g_class, "saturation");
if (pspec) {
self->saturation =
g_value_get_float (g_param_spec_get_default_value (pspec));
_create_colorbalance_channel (self, "SATURATION");
}
/* enable QoS */
gst_base_transform_set_qos_enabled (GST_BASE_TRANSFORM (instance), TRUE);
}
static gpointer
_register_debug_category (gpointer data)
{
GST_DEBUG_CATEGORY_INIT (gst_va_vpp_debug, "vapostproc", 0,
"VA Video Postprocessor");
#define D(type) \
G_PASTE (META_TAG_, type) = \
g_quark_from_static_string (G_PASTE (G_PASTE (GST_META_TAG_VIDEO_, type), _STR))
D (COLORSPACE);
D (SIZE);
D (ORIENTATION);
#undef D
META_TAG_VIDEO = g_quark_from_static_string (GST_META_TAG_VIDEO_STR);
return NULL;
}
gboolean
gst_va_vpp_register (GstPlugin * plugin, GstVaDevice * device,
gboolean has_colorbalance, guint rank)
{
static GOnce debug_once = G_ONCE_INIT;
GType type;
GTypeInfo type_info = {
.class_size = sizeof (GstVaVppClass),
.class_init = gst_va_vpp_class_init,
.instance_size = sizeof (GstVaVpp),
.instance_init = gst_va_vpp_init,
};
struct CData *cdata;
gboolean ret;
gchar *type_name, *feature_name;
g_return_val_if_fail (GST_IS_PLUGIN (plugin), FALSE);
g_return_val_if_fail (GST_IS_VA_DEVICE (device), FALSE);
cdata = g_new (struct CData, 1);
cdata->description = NULL;
cdata->render_device_path = g_strdup (device->render_device_path);
type_info.class_data = cdata;
type_name = g_strdup ("GstVaPostProc");
feature_name = g_strdup ("vapostproc");
/* The first postprocessor to be registered should use a constant
* name, like vapostproc, for any additional postprocessors, we
* create unique names, using inserting the render device name. */
if (g_type_from_name (type_name)) {
gchar *basename = g_path_get_basename (device->render_device_path);
g_free (type_name);
g_free (feature_name);
type_name = g_strdup_printf ("GstVa%sPostProc", basename);
feature_name = g_strdup_printf ("va%spostproc", basename);
cdata->description = basename;
/* lower rank for non-first device */
if (rank > 0)
rank--;
}
g_once (&debug_once, _register_debug_category, NULL);
type = g_type_register_static (GST_TYPE_VA_BASE_TRANSFORM, type_name,
&type_info, 0);
if (has_colorbalance) {
const GInterfaceInfo info = { gst_va_vpp_colorbalance_init, NULL, NULL };
g_type_add_interface_static (type, GST_TYPE_COLOR_BALANCE, &info);
}
ret = gst_element_register (plugin, feature_name, rank, type);
g_free (type_name);
g_free (feature_name);
return ret;
}
/* Color Balance interface */
static const GList *
gst_va_vpp_colorbalance_list_channels (GstColorBalance * balance)
{
GstVaVpp *self = GST_VA_VPP (balance);
return self->channels;
}
static gboolean
_set_cb_val (GstVaVpp * self, const gchar * name,
GstColorBalanceChannel * channel, gint value, gfloat * cb)
{
GObjectClass *klass = G_OBJECT_CLASS (GST_VA_VPP_GET_CLASS (self));
GParamSpec *pspec;
GParamSpecFloat *fpspec;
gfloat new_value;
gboolean changed;
pspec = g_object_class_find_property (klass, name);
if (!pspec)
return FALSE;
fpspec = G_PARAM_SPEC_FLOAT (pspec);
new_value = (value - channel->min_value) * (fpspec->maximum - fpspec->minimum)
/ (channel->max_value - channel->min_value) + fpspec->minimum;
GST_OBJECT_LOCK (self);
changed = new_value != *cb;
*cb = new_value;
value = (*cb + fpspec->minimum) * (channel->max_value - channel->min_value)
/ (fpspec->maximum - fpspec->minimum) + channel->min_value;
GST_OBJECT_UNLOCK (self);
if (changed) {
GST_INFO_OBJECT (self, "%s: %d / %f", channel->label, value, new_value);
gst_color_balance_value_changed (GST_COLOR_BALANCE (self), channel, value);
g_atomic_int_set (&self->rebuild_filters, TRUE);
}
return TRUE;
}
static void
gst_va_vpp_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstVaVpp *self = GST_VA_VPP (balance);
if (g_str_has_suffix (channel->label, "HUE"))
_set_cb_val (self, "hue", channel, value, &self->hue);
else if (g_str_has_suffix (channel->label, "BRIGHTNESS"))
_set_cb_val (self, "brightness", channel, value, &self->brightness);
else if (g_str_has_suffix (channel->label, "CONTRAST"))
_set_cb_val (self, "contrast", channel, value, &self->contrast);
else if (g_str_has_suffix (channel->label, "SATURATION"))
_set_cb_val (self, "saturation", channel, value, &self->saturation);
}
static gboolean
_get_cb_val (GstVaVpp * self, const gchar * name,
GstColorBalanceChannel * channel, gfloat * cb, gint * val)
{
GObjectClass *klass = G_OBJECT_CLASS (GST_VA_VPP_GET_CLASS (self));
GParamSpec *pspec;
GParamSpecFloat *fpspec;
pspec = g_object_class_find_property (klass, name);
if (!pspec)
return FALSE;
fpspec = G_PARAM_SPEC_FLOAT (pspec);
GST_OBJECT_LOCK (self);
*val = (*cb + fpspec->minimum) * (channel->max_value - channel->min_value)
/ (fpspec->maximum - fpspec->minimum) + channel->min_value;
GST_OBJECT_UNLOCK (self);
return TRUE;
}
static gint
gst_va_vpp_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstVaVpp *self = GST_VA_VPP (balance);
gint value = 0;
if (g_str_has_suffix (channel->label, "HUE"))
_get_cb_val (self, "hue", channel, &self->hue, &value);
else if (g_str_has_suffix (channel->label, "BRIGHTNESS"))
_get_cb_val (self, "brightness", channel, &self->brightness, &value);
else if (g_str_has_suffix (channel->label, "CONTRAST"))
_get_cb_val (self, "contrast", channel, &self->contrast, &value);
else if (g_str_has_suffix (channel->label, "SATURATION"))
_get_cb_val (self, "saturation", channel, &self->saturation, &value);
return value;
}
static GstColorBalanceType
gst_va_vpp_colorbalance_get_balance_type (GstColorBalance * balance)
{
return GST_COLOR_BALANCE_HARDWARE;
}
static void
gst_va_vpp_colorbalance_init (gpointer iface, gpointer data)
{
GstColorBalanceInterface *cbiface = iface;
cbiface->list_channels = gst_va_vpp_colorbalance_list_channels;
cbiface->set_value = gst_va_vpp_colorbalance_set_value;
cbiface->get_value = gst_va_vpp_colorbalance_get_value;
cbiface->get_balance_type = gst_va_vpp_colorbalance_get_balance_type;
}
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