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gstreamer/sys/va/gstvavpp.c
Víctor Manuel Jáquez Leal 0a7828e9ba vapostproc: Move up color balance detection to plugin. 
In order to install the color balance interface, a GstVaFilter is
instantiated and queried to know if it supports color balance
filter. It was done just after the GObject was registered. Now, it's
done before.

The reason of this change is that deinterlace element has to be
registered only if deinterlace filter is available, using only one
instantiate of GstVaFilter.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2495>
2021-09-10 14:45:00 +02:00

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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:
*
* + deinterlacing
* + 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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