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gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11deinterlace.cpp
Seungha Yang 7bcfccd0bd d3d11: Use CRITICAL_SECTION instead of GRecMutex 
The GRecMutex abstraction (and heap allocation happens in GLib)
is unnecessary for this plugin.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2914>
2022-08-18 17:48:57 +00:00

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/* GStreamer
* Copyright (C) 2021 Seungha Yang <seungha@centricular.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 the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-d3d11deinterlaceelement
* @title: d3d11deinterlaceelement
*
* Deinterlacing interlaced video frames to progressive video frames by using
* ID3D11VideoProcessor API. Depending on the hardware it runs on,
* this element will only support a very limited set of video formats.
* Use #d3d11deinterlace instead, which will take care of conversion.
*
* Since: 1.20
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gst/video/video.h>
#include <gst/base/gstbasetransform.h>
#include "gstd3d11deinterlace.h"
#include "gstd3d11pluginutils.h"
#include <wrl.h>
#include <string.h>
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_deinterlace_debug);
#define GST_CAT_DEFAULT gst_d3d11_deinterlace_debug
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
/* Deinterlacing Methods:
* Direct3D11 provides Blend, Bob, Adaptive, Motion Compensation, and
* Inverse Telecine methods. But depending on video processor device,
* some of method might not be supported.
* - Blend: the two fields of a interlaced frame are blended into a single
* progressive frame. Output rate will be half of input (e.g., 60i -> 30p)
* but due to the way of framerate signalling of GStreamer, that is, it uses
* frame rate, not field rate for interlaced stream, in/output framerate
* of caps will be identical.
* - Bob: missing field lines are interpolated from the lines above and below.
* Output rate will be the same as that of input (e.g., 60i -> 60p).
* In order words, video processor will generate two frames from two field
* of a intelaced frame.
* - Adaptive, Motion Compensation: future and past frames are used for
* reference frame for deinterlacing process. User should provide sufficent
* number of reference frames, otherwise processor device will fallback to
* Bob method.
*
* Direct3D11 doesn't provide a method for explicit deinterlacing method
* selection. Instead, it could be done indirectly.
* - Blend: sets output rate as half via VideoProcessorSetStreamOutputRate().
* - Bob: sets output rate as normal. And performs VideoProcessorBlt() twice per
* a interlaced frame. D3D11_VIDEO_PROCESSOR_STREAM::OutputIndex needs to be
* incremented per field (e.g., OutputIndex = 0 for the first field,
* and 1 for the second field).
* - Adaptive, Motion Compensation: in addition to the requirement of Bob,
* user should provide reference frames via
* D3D11_VIDEO_PROCESSOR_STREAM::ppPastSurfaces and
* D3D11_VIDEO_PROCESSOR_STREAM::ppFutureSurfaces
*/
typedef enum
{
GST_D3D11_DEINTERLACE_METHOD_BLEND =
D3D11_VIDEO_PROCESSOR_PROCESSOR_CAPS_DEINTERLACE_BLEND,
GST_D3D11_DEINTERLACE_METHOD_BOB =
D3D11_VIDEO_PROCESSOR_PROCESSOR_CAPS_DEINTERLACE_BOB,
GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE =
D3D11_VIDEO_PROCESSOR_PROCESSOR_CAPS_DEINTERLACE_ADAPTIVE,
GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION =
D3D11_VIDEO_PROCESSOR_PROCESSOR_CAPS_DEINTERLACE_MOTION_COMPENSATION,
/* TODO: INVERSE_TELECINE */
} GstD3D11DeinterlaceMethod;
/**
* GstD3D11DeinterlaceMethod:
*
* Deinterlacing method
*
* Since: 1.20
*/
#define GST_TYPE_D3D11_DEINTERLACE_METHOD (gst_d3d11_deinterlace_method_type())
static GType
gst_d3d11_deinterlace_method_type (void)
{
static GType method_type = 0;
GST_D3D11_CALL_ONCE_BEGIN {
static const GFlagsValue method_types[] = {
{GST_D3D11_DEINTERLACE_METHOD_BLEND,
"Blend: Blending top/bottom field pictures into one frame. "
"Framerate will be preserved (e.g., 60i -> 30p)", "blend"},
{GST_D3D11_DEINTERLACE_METHOD_BOB,
"Bob: Interpolating missing lines by using the adjacent lines. "
"Framerate will be doubled (e,g, 60i -> 60p)", "bob"},
{GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE,
"Adaptive: Interpolating missing lines by using spatial/temporal references. "
"Framerate will be doubled (e,g, 60i -> 60p)",
"adaptive"},
{GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION,
"Motion Compensation: Recreating missing lines by using motion vector. "
"Framerate will be doubled (e,g, 60i -> 60p)", "mocomp"},
{0, nullptr, nullptr},
};
method_type = g_flags_register_static ("GstD3D11DeinterlaceMethod",
method_types);
} GST_D3D11_CALL_ONCE_END;
return method_type;
}
typedef struct
{
GstD3D11DeinterlaceMethod supported_methods;
GstD3D11DeinterlaceMethod default_method;
guint max_past_frames;
guint max_future_frames;
} GstD3D11DeinterlaceDeviceCaps;
typedef struct
{
GType deinterlace_type;
GstCaps *sink_caps;
GstCaps *src_caps;
guint adapter;
guint device_id;
guint vendor_id;
gchar *description;
GstD3D11DeinterlaceDeviceCaps device_caps;
guint ref_count;
} GstD3D11DeinterlaceClassData;
static GstD3D11DeinterlaceClassData *
gst_d3d11_deinterlace_class_data_new (void)
{
GstD3D11DeinterlaceClassData *self = g_new0 (GstD3D11DeinterlaceClassData, 1);
self->ref_count = 1;
return self;
}
static GstD3D11DeinterlaceClassData *
gst_d3d11_deinterlace_class_data_ref (GstD3D11DeinterlaceClassData * data)
{
g_assert (data != NULL);
g_atomic_int_add (&data->ref_count, 1);
return data;
}
static void
gst_d3d11_deinterlace_class_data_unref (GstD3D11DeinterlaceClassData * data)
{
g_assert (data != NULL);
if (g_atomic_int_dec_and_test (&data->ref_count)) {
gst_clear_caps (&data->sink_caps);
gst_clear_caps (&data->src_caps);
g_free (data->description);
g_free (data);
}
}
enum
{
PROP_0,
PROP_ADAPTER,
PROP_DEVICE_ID,
PROP_VENDOR_ID,
PROP_METHOD,
PROP_SUPPORTED_METHODS,
};
/* hardcoded maximum queue size for each past/future frame queue */
#define MAX_NUM_REFERENCES 2
typedef struct _GstD3D11Deinterlace
{
GstBaseTransform parent;
GstVideoInfo in_info;
GstVideoInfo out_info;
/* Calculated buffer duration by using upstream framerate */
GstClockTime default_buffer_duration;
GstD3D11Device *device;
ID3D11VideoDevice *video_device;
ID3D11VideoContext *video_context;
ID3D11VideoProcessorEnumerator *video_enum;
ID3D11VideoProcessor *video_proc;
GstD3D11DeinterlaceMethod method;
CRITICAL_SECTION lock;
GQueue past_frame_queue;
GQueue future_frame_queue;
GstBuffer *to_process;
guint max_past_frames;
guint max_future_frames;
/* D3D11_VIDEO_PROCESSOR_STREAM::InputFrameOrField */
guint input_index;
/* Clear/Update per submit_input_buffer() */
guint num_output_per_input;
guint num_transformed;
gboolean first_output;
GstBufferPool *fallback_in_pool;
GstBufferPool *fallback_out_pool;
} GstD3D11Deinterlace;
typedef struct _GstD3D11DeinterlaceClass
{
GstBaseTransformClass parent_class;
guint adapter;
guint device_id;
guint vendor_id;
GstD3D11DeinterlaceDeviceCaps device_caps;
} GstD3D11DeinterlaceClass;
static GstElementClass *parent_class = NULL;
#define GST_D3D11_DEINTERLACE(object) ((GstD3D11Deinterlace *) (object))
#define GST_D3D11_DEINTERLACE_GET_CLASS(object) \
(G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object), \
GstD3D11DeinterlaceClass))
static gboolean
gst_d3d11_deinterlace_update_method (GstD3D11Deinterlace * self);
static void gst_d3d11_deinterlace_reset (GstD3D11Deinterlace * self);
static GstFlowReturn gst_d3d11_deinterlace_drain (GstD3D11Deinterlace * self);
/* GObjectClass vfunc */
static void gst_d3d11_deinterlace_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_d3d11_deinterlace_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_d3d11_deinterlace_finalize (GObject * object);
/* GstElementClass vfunc */
static void gst_d3d11_deinterlace_set_context (GstElement * element,
GstContext * context);
/* GstBaseTransformClass vfunc */
static gboolean gst_d3d11_deinterlace_start (GstBaseTransform * trans);
static gboolean gst_d3d11_deinterlace_stop (GstBaseTransform * trans);
static gboolean gst_d3d11_deinterlace_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query);
static GstCaps *gst_d3d11_deinterlace_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_d3d11_deinterlace_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean
gst_d3d11_deinterlace_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query);
static gboolean
gst_d3d11_deinterlace_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static gboolean gst_d3d11_deinterlace_set_caps (GstBaseTransform * trans,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn
gst_d3d11_deinterlace_submit_input_buffer (GstBaseTransform * trans,
gboolean is_discont, GstBuffer * input);
static GstFlowReturn
gst_d3d11_deinterlace_generate_output (GstBaseTransform * trans,
GstBuffer ** outbuf);
static GstFlowReturn
gst_d3d11_deinterlace_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf);
static gboolean gst_d3d11_deinterlace_sink_event (GstBaseTransform * trans,
GstEvent * event);
static void gst_d3d11_deinterlace_before_transform (GstBaseTransform * trans,
GstBuffer * buffer);
static void
gst_d3d11_deinterlace_class_init (GstD3D11DeinterlaceClass * klass,
gpointer data)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstD3D11DeinterlaceClassData *cdata = (GstD3D11DeinterlaceClassData *) data;
gchar *long_name;
parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
gobject_class->get_property = gst_d3d11_deinterlace_get_property;
gobject_class->set_property = gst_d3d11_deinterlace_set_property;
gobject_class->finalize = gst_d3d11_deinterlace_finalize;
g_object_class_install_property (gobject_class, PROP_ADAPTER,
g_param_spec_uint ("adapter", "Adapter",
"DXGI Adapter index for creating device",
0, G_MAXUINT32, cdata->adapter,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_METHOD,
g_param_spec_flags ("method", "Method",
"Deinterlace Method. Use can set multiple methods as a flagset "
"and element will select one of method automatically. "
"If deinterlacing device failed to deinterlace with given mode, "
"fallback might happen by the device",
GST_TYPE_D3D11_DEINTERLACE_METHOD, cdata->device_caps.default_method,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY)));
g_object_class_install_property (gobject_class, PROP_SUPPORTED_METHODS,
g_param_spec_flags ("supported-methods", "Supported Methods",
"Set of supported deinterlace methods by device",
GST_TYPE_D3D11_DEINTERLACE_METHOD,
cdata->device_caps.supported_methods,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_set_context);
long_name = g_strdup_printf ("Direct3D11 %s Deinterlacer",
cdata->description);
gst_element_class_set_metadata (element_class, long_name,
"Filter/Effect/Video/Deinterlace/Hardware",
"A Direct3D11 based deinterlacer",
"Seungha Yang <seungha@centricular.com>");
g_free (long_name);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps));
trans_class->passthrough_on_same_caps = TRUE;
trans_class->start = GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_start);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_stop);
trans_class->query = GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_query);
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_transform_caps);
trans_class->fixate_caps =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_fixate_caps);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_decide_allocation);
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_set_caps);
trans_class->submit_input_buffer =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_submit_input_buffer);
trans_class->generate_output =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_generate_output);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_transform);
trans_class->sink_event =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_sink_event);
trans_class->before_transform =
GST_DEBUG_FUNCPTR (gst_d3d11_deinterlace_before_transform);
klass->adapter = cdata->adapter;
klass->device_id = cdata->device_id;
klass->vendor_id = cdata->vendor_id;
klass->device_caps = cdata->device_caps;
gst_d3d11_deinterlace_class_data_unref (cdata);
gst_type_mark_as_plugin_api (GST_TYPE_D3D11_DEINTERLACE_METHOD,
(GstPluginAPIFlags) 0);
}
static void
gst_d3d11_deinterlace_init (GstD3D11Deinterlace * self)
{
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (self);
self->method = klass->device_caps.default_method;
self->default_buffer_duration = GST_CLOCK_TIME_NONE;
gst_d3d11_deinterlace_update_method (self);
g_queue_init (&self->past_frame_queue);
g_queue_init (&self->future_frame_queue);
InitializeCriticalSection (&self->lock);
}
static void
gst_d3d11_deinterlace_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (object);
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (object);
switch (prop_id) {
case PROP_ADAPTER:
g_value_set_uint (value, klass->adapter);
break;
case PROP_DEVICE_ID:
g_value_set_uint (value, klass->device_id);
break;
case PROP_VENDOR_ID:
g_value_set_uint (value, klass->vendor_id);
break;
case PROP_METHOD:
g_value_set_flags (value, self->method);
break;
case PROP_SUPPORTED_METHODS:
g_value_set_flags (value, klass->device_caps.supported_methods);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_d3d11_deinterlace_update_method (GstD3D11Deinterlace * self)
{
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (self);
GstD3D11DeinterlaceMethod requested_method = self->method;
gboolean updated = TRUE;
/* Verify whether requested method is supported */
if ((self->method & klass->device_caps.supported_methods) == 0) {
#ifndef GST_DISABLE_GST_DEBUG
gchar *supported, *requested;
supported = g_flags_to_string (GST_TYPE_D3D11_DEINTERLACE_METHOD,
klass->device_caps.supported_methods);
requested = g_flags_to_string (GST_TYPE_D3D11_DEINTERLACE_METHOD,
klass->device_caps.supported_methods);
GST_WARNING_OBJECT (self,
"Requested method %s is not supported (supported: %s)",
requested, supported);
g_free (supported);
g_free (requested);
#endif
self->method = klass->device_caps.default_method;
goto done;
}
/* Drop not supported methods */
self->method = (GstD3D11DeinterlaceMethod)
(klass->device_caps.supported_methods & self->method);
/* Single method was requested? */
if (self->method == GST_D3D11_DEINTERLACE_METHOD_BLEND ||
self->method == GST_D3D11_DEINTERLACE_METHOD_BOB ||
self->method == GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE ||
self->method == GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION) {
if (self->method == requested_method)
updated = FALSE;
} else {
/* Pick single method from requested */
if ((self->method & GST_D3D11_DEINTERLACE_METHOD_BOB) ==
GST_D3D11_DEINTERLACE_METHOD_BOB) {
self->method = GST_D3D11_DEINTERLACE_METHOD_BOB;
} else if ((self->method & GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE) ==
GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE) {
self->method = GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE;
} else if ((self->method & GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION)
== GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION) {
self->method = GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION;
} else if ((self->method & GST_D3D11_DEINTERLACE_METHOD_BLEND) ==
GST_D3D11_DEINTERLACE_METHOD_BLEND) {
self->method = GST_D3D11_DEINTERLACE_METHOD_BLEND;
} else {
self->method = klass->device_caps.default_method;
g_assert_not_reached ();
}
}
done:
if (self->method == GST_D3D11_DEINTERLACE_METHOD_BLEND) {
/* Both methods don't use reference frame for deinterlacing */
self->max_past_frames = self->max_future_frames = 0;
} else if (self->method == GST_D3D11_DEINTERLACE_METHOD_BOB) {
/* To calculate timestamp and duration of output fraems, we will hold one
* future frame even though processor device will not use reference */
self->max_past_frames = 0;
self->max_future_frames = 1;
} else {
/* FIXME: how many frames should be allowed? also, this needs to be
* configurable */
self->max_past_frames = MIN (klass->device_caps.max_past_frames,
MAX_NUM_REFERENCES);
/* Likewise Bob, we need at least one future frame for timestamp/duration
* calculation */
self->max_future_frames =
MAX (MIN (klass->device_caps.max_future_frames, MAX_NUM_REFERENCES), 1);
}
return updated;
}
static void
gst_d3d11_deinterlace_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (object);
switch (prop_id) {
case PROP_METHOD:{
gboolean notify_update = FALSE;
GST_OBJECT_LOCK (self);
self->method = (GstD3D11DeinterlaceMethod) g_value_get_flags (value);
notify_update = gst_d3d11_deinterlace_update_method (self);
GST_OBJECT_UNLOCK (self);
if (notify_update)
g_object_notify (object, "method");
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d11_deinterlace_finalize (GObject * object)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (object);
DeleteCriticalSection (&self->lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d11_deinterlace_set_context (GstElement * element, GstContext * context)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (element);
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (self);
gst_d3d11_handle_set_context (element, context, klass->adapter,
&self->device);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_d3d11_deinterlace_open (GstD3D11Deinterlace * self)
{
ID3D11VideoDevice *video_device;
ID3D11VideoContext *video_context;
video_device = gst_d3d11_device_get_video_device_handle (self->device);
if (!video_device) {
GST_ERROR_OBJECT (self, "ID3D11VideoDevice is not availale");
return FALSE;
}
video_context = gst_d3d11_device_get_video_context_handle (self->device);
if (!video_context) {
GST_ERROR_OBJECT (self, "ID3D11VideoContext is not available");
return FALSE;
}
self->video_device = video_device;
video_device->AddRef ();
self->video_context = video_context;
video_context->AddRef ();
return TRUE;
}
/* Must be called with lock taken */
static void
gst_d3d11_deinterlace_reset_history (GstD3D11Deinterlace * self)
{
self->input_index = 0;
self->num_output_per_input = 1;
self->num_transformed = 0;
self->first_output = TRUE;
g_queue_clear_full (&self->past_frame_queue,
(GDestroyNotify) gst_buffer_unref);
g_queue_clear_full (&self->future_frame_queue,
(GDestroyNotify) gst_buffer_unref);
gst_clear_buffer (&self->to_process);
}
static void
gst_d3d11_deinterlace_reset (GstD3D11Deinterlace * self)
{
GstD3D11CSLockGuard lk (&self->lock);
if (self->fallback_in_pool) {
gst_buffer_pool_set_active (self->fallback_in_pool, FALSE);
gst_object_unref (self->fallback_in_pool);
self->fallback_in_pool = NULL;
}
if (self->fallback_out_pool) {
gst_buffer_pool_set_active (self->fallback_out_pool, FALSE);
gst_object_unref (self->fallback_out_pool);
self->fallback_out_pool = NULL;
}
GST_D3D11_CLEAR_COM (self->video_enum);
GST_D3D11_CLEAR_COM (self->video_proc);
gst_d3d11_deinterlace_reset_history (self);
self->default_buffer_duration = GST_CLOCK_TIME_NONE;
}
static void
gst_d3d11_deinterlace_close (GstD3D11Deinterlace * self)
{
gst_d3d11_deinterlace_reset (self);
GST_D3D11_CLEAR_COM (self->video_device);
GST_D3D11_CLEAR_COM (self->video_context);
gst_clear_object (&self->device);
}
static gboolean
gst_d3d11_deinterlace_start (GstBaseTransform * trans)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (self);
if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), klass->adapter,
&self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create d3d11device");
return FALSE;
}
if (!gst_d3d11_deinterlace_open (self)) {
GST_ERROR_OBJECT (self, "Couldn't open video device");
gst_d3d11_deinterlace_close (self);
return FALSE;
}
return TRUE;
}
static gboolean
gst_d3d11_deinterlace_stop (GstBaseTransform * trans)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
gst_d3d11_deinterlace_close (self);
return TRUE;
}
static gboolean
gst_d3d11_deinterlace_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_d3d11_handle_context_query (GST_ELEMENT_CAST (self),
query, self->device)) {
return TRUE;
}
break;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
query);
}
static GstCaps *
gst_d3d11_deinterlace_remove_interlace_info (GstCaps * caps,
gboolean remove_framerate)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = 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 (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
if (remove_framerate) {
gst_structure_remove_fields (st, "interlace-mode", "field-order",
"framerate", NULL);
} else {
gst_structure_remove_fields (st, "interlace-mode", "field-order", NULL);
}
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_d3d11_deinterlace_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_d3d11_deinterlace_remove_interlace_info (caps,
/* Non-blend mode will double framerate */
self->method != GST_D3D11_DEINTERLACE_METHOD_BLEND);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_d3d11_deinterlace_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstStructure *s;
GstCaps *tmp;
gint fps_n, fps_d;
GstVideoInfo info;
const gchar *interlace_mode;
othercaps = gst_caps_truncate (othercaps);
othercaps = gst_caps_make_writable (othercaps);
if (direction == GST_PAD_SRC)
return gst_caps_fixate (othercaps);
tmp = gst_caps_copy (caps);
tmp = gst_caps_fixate (tmp);
if (!gst_video_info_from_caps (&info, tmp)) {
GST_WARNING_OBJECT (self, "Invalid caps %" GST_PTR_FORMAT, caps);
gst_caps_unref (tmp);
return gst_caps_fixate (othercaps);
}
s = gst_caps_get_structure (tmp, 0);
if (gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d)) {
/* for non-blend method, output framerate will be doubled */
if (self->method != GST_D3D11_DEINTERLACE_METHOD_BLEND &&
GST_VIDEO_INFO_IS_INTERLACED (&info)) {
fps_n *= 2;
}
gst_caps_set_simple (othercaps,
"framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL);
}
interlace_mode = gst_structure_get_string (s, "interlace-mode");
if (g_strcmp0 ("progressive", interlace_mode) == 0) {
/* Just forward interlace-mode=progressive.
* By this way, basetransform will enable passthrough for non-interlaced
* stream*/
gst_caps_set_simple (othercaps,
"interlace-mode", G_TYPE_STRING, "progressive", NULL);
}
gst_caps_unref (tmp);
return gst_caps_fixate (othercaps);
}
static gboolean
gst_d3d11_deinterlace_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstVideoInfo info;
GstBufferPool *pool = NULL;
GstCaps *caps;
guint n_pools, i;
GstStructure *config;
guint size;
GstD3D11AllocationParams *d3d11_params;
guint min_buffers = 0;
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query))
return FALSE;
/* passthrough, we're done */
if (decide_query == NULL)
return TRUE;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
n_pools = gst_query_get_n_allocation_pools (query);
for (i = 0; i < n_pools; i++) {
gst_query_parse_nth_allocation_pool (query, i, &pool, NULL, NULL, NULL);
if (pool) {
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_clear_object (&pool);
} else {
GstD3D11BufferPool *dpool = GST_D3D11_BUFFER_POOL (pool);
if (dpool->device != self->device)
gst_clear_object (&pool);
}
}
}
if (!pool)
pool = gst_d3d11_buffer_pool_new (self->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (self->device, &info,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_RENDER_TARGET, 0);
} else {
d3d11_params->desc[0].BindFlags |= D3D11_BIND_RENDER_TARGET;
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
if (self->method == GST_D3D11_DEINTERLACE_METHOD_BOB) {
/* For non-blend methods, we will produce two progressive frames from
* a single interlaced frame. To determine timestamp and duration,
* we might need to hold one past frame if buffer duration is unknown */
min_buffers = 2;
} else if (self->method == GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE ||
self->method == GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION) {
/* For advanced deinterlacing methods, we will hold more frame so that
* device can use them as reference frames */
min_buffers += self->max_past_frames;
min_buffers += self->max_future_frames;
/* And one for current frame */
min_buffers++;
/* we will hold at least one frame for timestamp/duration calculation */
min_buffers = MAX (min_buffers, 2);
}
/* size will be updated by d3d11 buffer pool */
gst_buffer_pool_config_set_params (config, caps, 0, min_buffers, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size, min_buffers, 0);
gst_object_unref (pool);
return TRUE;
/* ERRORS */
config_failed:
{
GST_ERROR_OBJECT (self, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_d3d11_deinterlace_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min = 0, max = 0;
GstStructure *config;
GstD3D11AllocationParams *d3d11_params;
gboolean update_pool = FALSE;
GstVideoInfo info;
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
if (!gst_video_info_from_caps (&info, outcaps))
return FALSE;
size = GST_VIDEO_INFO_SIZE (&info);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool) {
if (!GST_IS_D3D11_BUFFER_POOL (pool)) {
gst_clear_object (&pool);
} else {
GstD3D11BufferPool *dpool = GST_D3D11_BUFFER_POOL (pool);
if (dpool->device != self->device)
gst_clear_object (&pool);
}
}
update_pool = TRUE;
}
if (!pool)
pool = gst_d3d11_buffer_pool_new (self->device);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
d3d11_params = gst_buffer_pool_config_get_d3d11_allocation_params (config);
if (!d3d11_params) {
d3d11_params = gst_d3d11_allocation_params_new (self->device, &info,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_RENDER_TARGET, 0);
} else {
d3d11_params->desc[0].BindFlags |= D3D11_BIND_RENDER_TARGET;
}
gst_buffer_pool_config_set_d3d11_allocation_params (config, d3d11_params);
gst_d3d11_allocation_params_free (d3d11_params);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_set_config (pool, config);
/* d3d11 buffer pool will update buffer size based on allocated texture,
* get size from config again */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
}
static gboolean
gst_d3d11_deinterlace_prepare_fallback_pool (GstD3D11Deinterlace * self,
GstCaps * in_caps, GstVideoInfo * in_info, GstCaps * out_caps,
GstVideoInfo * out_info)
{
GstD3D11AllocationParams *d3d11_params;
/* Clearing potentially remaining resource here would be redundant.
* Just to be safe enough */
g_queue_clear_full (&self->past_frame_queue,
(GDestroyNotify) gst_buffer_unref);
g_queue_clear_full (&self->future_frame_queue,
(GDestroyNotify) gst_buffer_unref);
if (self->fallback_in_pool) {
gst_buffer_pool_set_active (self->fallback_in_pool, FALSE);
gst_object_unref (self->fallback_in_pool);
self->fallback_in_pool = NULL;
}
if (self->fallback_out_pool) {
gst_buffer_pool_set_active (self->fallback_out_pool, FALSE);
gst_object_unref (self->fallback_out_pool);
self->fallback_out_pool = NULL;
}
/* Empty bind flag is allowed for video processor input */
d3d11_params = gst_d3d11_allocation_params_new (self->device, in_info,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, 0, 0);
self->fallback_in_pool = gst_d3d11_buffer_pool_new_with_options (self->device,
in_caps, d3d11_params, 0, 0);
gst_d3d11_allocation_params_free (d3d11_params);
if (!self->fallback_in_pool) {
GST_ERROR_OBJECT (self, "Failed to create input fallback buffer pool");
return FALSE;
}
/* For processor output, render target bind flag is required */
d3d11_params = gst_d3d11_allocation_params_new (self->device, out_info,
GST_D3D11_ALLOCATION_FLAG_DEFAULT, D3D11_BIND_RENDER_TARGET, 0);
self->fallback_out_pool =
gst_d3d11_buffer_pool_new_with_options (self->device,
out_caps, d3d11_params, 0, 0);
gst_d3d11_allocation_params_free (d3d11_params);
if (!self->fallback_out_pool) {
GST_ERROR_OBJECT (self, "Failed to create output fallback buffer pool");
gst_clear_object (&self->fallback_out_pool);
return FALSE;
}
return TRUE;
}
static gboolean
gst_d3d11_deinterlace_set_caps (GstBaseTransform * trans,
GstCaps * incaps, GstCaps * outcaps)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstVideoInfo in_info, out_info;
/* *INDENT-OFF* */
ComPtr<ID3D11VideoProcessorEnumerator> video_enum;
ComPtr<ID3D11VideoProcessor> video_proc;
/* *INDENT-ON* */
D3D11_VIDEO_PROCESSOR_CONTENT_DESC desc;
D3D11_VIDEO_PROCESSOR_CAPS proc_caps;
D3D11_VIDEO_PROCESSOR_RATE_CONVERSION_CAPS rate_conv_caps;
D3D11_VIDEO_PROCESSOR_OUTPUT_RATE output_rate =
D3D11_VIDEO_PROCESSOR_OUTPUT_RATE_NORMAL;
HRESULT hr;
RECT rect;
guint i;
if (gst_base_transform_is_passthrough (trans))
return TRUE;
if (!gst_video_info_from_caps (&in_info, incaps)) {
GST_ERROR_OBJECT (self, "Invalid input caps %" GST_PTR_FORMAT, incaps);
return FALSE;
}
if (!gst_video_info_from_caps (&out_info, outcaps)) {
GST_ERROR_OBJECT (self, "Invalid output caps %" GST_PTR_FORMAT, outcaps);
return FALSE;
}
self->in_info = in_info;
self->out_info = out_info;
/* Calculate expected buffer duration. We might need to reference this value
* when buffer duration is unknown */
if (GST_VIDEO_INFO_FPS_N (&in_info) > 0 &&
GST_VIDEO_INFO_FPS_D (&in_info) > 0) {
self->default_buffer_duration =
gst_util_uint64_scale_int (GST_SECOND, GST_VIDEO_INFO_FPS_D (&in_info),
GST_VIDEO_INFO_FPS_N (&in_info));
} else {
/* Assume 25 fps. We need this for reporting latency at least */
self->default_buffer_duration =
gst_util_uint64_scale_int (GST_SECOND, 1, 25);
}
gst_d3d11_deinterlace_reset (self);
/* Nothing to do */
if (!GST_VIDEO_INFO_IS_INTERLACED (&in_info)) {
gst_base_transform_set_passthrough (trans, TRUE);
return TRUE;
}
/* TFF or BFF is not important here, this is just for enumerating
* available deinterlace devices */
memset (&desc, 0, sizeof (D3D11_VIDEO_PROCESSOR_CONTENT_DESC));
desc.InputFrameFormat = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_TOP_FIELD_FIRST;
if (GST_VIDEO_INFO_FIELD_ORDER (&in_info) ==
GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST)
desc.InputFrameFormat =
D3D11_VIDEO_FRAME_FORMAT_INTERLACED_BOTTOM_FIELD_FIRST;
desc.InputWidth = GST_VIDEO_INFO_WIDTH (&in_info);
desc.InputHeight = GST_VIDEO_INFO_HEIGHT (&in_info);
desc.OutputWidth = GST_VIDEO_INFO_WIDTH (&out_info);
desc.OutputHeight = GST_VIDEO_INFO_HEIGHT (&out_info);
desc.Usage = D3D11_VIDEO_USAGE_PLAYBACK_NORMAL;
hr = self->video_device->CreateVideoProcessorEnumerator (&desc, &video_enum);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create VideoProcessorEnumerator");
return FALSE;
}
hr = video_enum->GetVideoProcessorCaps (&proc_caps);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't query processor caps");
return FALSE;
}
/* Shouldn't happen, we checked this already during plugin_init */
if (proc_caps.RateConversionCapsCount == 0) {
GST_ERROR_OBJECT (self, "Deinterlacing is not supported");
return FALSE;
}
for (i = 0; i < proc_caps.RateConversionCapsCount; i++) {
hr = video_enum->GetVideoProcessorRateConversionCaps (i, &rate_conv_caps);
if (FAILED (hr))
continue;
if ((rate_conv_caps.ProcessorCaps & self->method) == self->method)
break;
}
if (i >= proc_caps.RateConversionCapsCount) {
GST_ERROR_OBJECT (self, "Deinterlacing method 0x%x is not supported",
self->method);
return FALSE;
}
hr = self->video_device->CreateVideoProcessor (video_enum.Get (),
i, &video_proc);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create processor");
return FALSE;
}
if (!gst_d3d11_deinterlace_prepare_fallback_pool (self, incaps, &in_info,
outcaps, &out_info)) {
GST_ERROR_OBJECT (self, "Couldn't prepare fallback buffer pool");
return FALSE;
}
self->video_enum = video_enum.Detach ();
self->video_proc = video_proc.Detach ();
rect.left = 0;
rect.top = 0;
rect.right = GST_VIDEO_INFO_WIDTH (&self->in_info);
rect.bottom = GST_VIDEO_INFO_HEIGHT (&self->in_info);
/* Blending seems to be considered as half rate. See also
* https://docs.microsoft.com/en-us/windows/win32/api/d3d12video/ns-d3d12video-d3d12_video_process_input_stream_rate */
if (self->method == GST_D3D11_DEINTERLACE_METHOD_BLEND)
output_rate = D3D11_VIDEO_PROCESSOR_OUTPUT_RATE_HALF;
GstD3D11DeviceLockGuard lk (self->device);
self->video_context->VideoProcessorSetStreamSourceRect (self->video_proc,
0, TRUE, &rect);
self->video_context->VideoProcessorSetStreamDestRect (self->video_proc,
0, TRUE, &rect);
self->video_context->VideoProcessorSetOutputTargetRect (self->video_proc,
TRUE, &rect);
self->video_context->
VideoProcessorSetStreamAutoProcessingMode (self->video_proc, 0, FALSE);
self->video_context->VideoProcessorSetStreamOutputRate (self->video_proc, 0,
output_rate, TRUE, NULL);
return TRUE;
}
static ID3D11VideoProcessorInputView *
gst_d3d11_deinterace_get_piv_from_buffer (GstD3D11Deinterlace * self,
GstBuffer * buffer)
{
GstMemory *mem;
GstD3D11Memory *dmem;
ID3D11VideoProcessorInputView *piv;
if (gst_buffer_n_memory (buffer) != 1) {
GST_WARNING_OBJECT (self, "Input buffer has more than one memory");
return NULL;
}
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_WARNING_OBJECT (self, "Input buffer is holding non-D3D11 memory");
return NULL;
}
dmem = (GstD3D11Memory *) mem;
if (dmem->device != self->device) {
GST_WARNING_OBJECT (self,
"Input D3D11 memory was allocated by other device");
return NULL;
}
piv = gst_d3d11_memory_get_processor_input_view (dmem,
self->video_device, self->video_enum);
if (!piv) {
GST_WARNING_OBJECT (self, "ID3D11VideoProcessorInputView is unavailable");
return NULL;
}
return piv;
}
static GstBuffer *
gst_d3d11_deinterlace_ensure_input_buffer (GstD3D11Deinterlace * self,
GstBuffer * input)
{
GstD3D11Memory *dmem;
ID3D11VideoProcessorInputView *piv;
GstBuffer *new_buf = NULL;
if (!input)
return NULL;
piv = gst_d3d11_deinterace_get_piv_from_buffer (self, input);
if (piv)
return input;
if (!self->fallback_in_pool ||
!gst_buffer_pool_set_active (self->fallback_in_pool, TRUE) ||
gst_buffer_pool_acquire_buffer (self->fallback_in_pool, &new_buf,
NULL) != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Fallback input buffer is unavailable");
gst_buffer_unref (input);
return NULL;
}
if (!gst_d3d11_buffer_copy_into (new_buf, input, &self->in_info)) {
GST_ERROR_OBJECT (self, "Couldn't copy input buffer to fallback buffer");
gst_buffer_unref (new_buf);
gst_buffer_unref (input);
return NULL;
}
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (new_buf, 0);
piv = gst_d3d11_memory_get_processor_input_view (dmem,
self->video_device, self->video_enum);
if (!piv) {
GST_ERROR_OBJECT (self, "ID3D11VideoProcessorInputView is unavailable");
gst_buffer_unref (new_buf);
gst_buffer_unref (input);
return NULL;
}
/* copy metadata, default implementation of baseclass will copy everything
* what we need */
GST_BASE_TRANSFORM_CLASS (parent_class)->copy_metadata
(GST_BASE_TRANSFORM_CAST (self), input, new_buf);
gst_buffer_unref (input);
return new_buf;
}
static GstFlowReturn
gst_d3d11_deinterlace_submit_future_frame (GstD3D11Deinterlace * self,
GstBuffer * buffer)
{
GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (self);
guint len;
/* push tail and pop head, so that head frame can be the nearest frame
* of current frame */
if (buffer)
g_queue_push_tail (&self->future_frame_queue, buffer);
len = g_queue_get_length (&self->future_frame_queue);
g_assert (len <= self->max_future_frames + 1);
if (self->to_process) {
GST_WARNING_OBJECT (self, "Found uncleared processing buffer");
gst_clear_buffer (&self->to_process);
}
if (len > self->max_future_frames ||
/* NULL means drain */
(buffer == NULL && len > 0)) {
GstClockTime cur_timestmap = GST_CLOCK_TIME_NONE;
GstClockTime duration = GST_CLOCK_TIME_NONE;
GstBuffer *next_buf;
self->to_process =
(GstBuffer *) g_queue_pop_head (&self->future_frame_queue);
/* For non-blend methods, we will produce two frames from a single
* interlaced frame. So, sufficiently correct buffer duration is required
* to set timestamp for the second output frame */
if (self->method != GST_D3D11_DEINTERLACE_METHOD_BLEND) {
if (GST_BUFFER_PTS_IS_VALID (self->to_process)) {
cur_timestmap = GST_BUFFER_PTS (self->to_process);
} else {
cur_timestmap = GST_BUFFER_DTS (self->to_process);
}
/* Ensure buffer duration */
next_buf = (GstBuffer *) g_queue_peek_head (&self->future_frame_queue);
if (next_buf && GST_CLOCK_STIME_IS_VALID (cur_timestmap)) {
GstClockTime next_timestamp;
if (GST_BUFFER_PTS_IS_VALID (next_buf)) {
next_timestamp = GST_BUFFER_PTS (next_buf);
} else {
next_timestamp = GST_BUFFER_DTS (next_buf);
}
if (GST_CLOCK_STIME_IS_VALID (next_timestamp)) {
if (trans->segment.rate >= 0.0 && next_timestamp > cur_timestmap) {
duration = next_timestamp - cur_timestmap;
} else if (trans->segment.rate < 0.0
&& next_timestamp < cur_timestmap) {
duration = cur_timestmap - next_timestamp;
}
}
}
/* Make sure that we can update buffer duration safely */
self->to_process = gst_buffer_make_writable (self->to_process);
if (GST_CLOCK_TIME_IS_VALID (duration)) {
GST_BUFFER_DURATION (self->to_process) = duration;
} else {
GST_BUFFER_DURATION (self->to_process) = self->default_buffer_duration;
}
/* Bonus points, DTS doesn't make sense for raw video frame */
GST_BUFFER_PTS (self->to_process) = cur_timestmap;
GST_BUFFER_DTS (self->to_process) = GST_CLOCK_TIME_NONE;
/* And mark the number of output frames for this input frame */
self->num_output_per_input = 2;
} else {
self->num_output_per_input = 1;
}
self->first_output = TRUE;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_deinterlace_submit_input_buffer (GstBaseTransform * trans,
gboolean is_discont, GstBuffer * input)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstFlowReturn ret;
GstBuffer *buf;
/* Let baseclass handle QoS first */
ret = GST_BASE_TRANSFORM_CLASS (parent_class)->submit_input_buffer (trans,
is_discont, input);
if (ret != GST_FLOW_OK)
return ret;
if (gst_base_transform_is_passthrough (trans))
return ret;
/* at this moment, baseclass must hold queued_buf */
g_assert (trans->queued_buf != NULL);
/* Check if we can use this buffer directly. If not, copy this into
* our fallback buffer */
buf = trans->queued_buf;
trans->queued_buf = NULL;
buf = gst_d3d11_deinterlace_ensure_input_buffer (self, buf);
if (!buf) {
GST_ERROR_OBJECT (self, "Invalid input buffer");
return GST_FLOW_ERROR;
}
return gst_d3d11_deinterlace_submit_future_frame (self, buf);
}
static ID3D11VideoProcessorOutputView *
gst_d3d11_deinterace_get_pov_from_buffer (GstD3D11Deinterlace * self,
GstBuffer * buffer)
{
GstMemory *mem;
GstD3D11Memory *dmem;
ID3D11VideoProcessorOutputView *pov;
if (gst_buffer_n_memory (buffer) != 1) {
GST_WARNING_OBJECT (self, "Output buffer has more than one memory");
return NULL;
}
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_WARNING_OBJECT (self, "Output buffer is holding non-D3D11 memory");
return NULL;
}
dmem = (GstD3D11Memory *) mem;
if (dmem->device != self->device) {
GST_WARNING_OBJECT (self,
"Output D3D11 memory was allocated by other device");
return NULL;
}
pov = gst_d3d11_memory_get_processor_output_view (dmem,
self->video_device, self->video_enum);
if (!pov) {
GST_WARNING_OBJECT (self, "ID3D11VideoProcessorOutputView is unavailable");
return NULL;
}
return pov;
}
static GstBuffer *
gst_d3d11_deinterlace_ensure_output_buffer (GstD3D11Deinterlace * self,
GstBuffer * output)
{
GstD3D11Memory *dmem;
ID3D11VideoProcessorOutputView *pov;
GstBuffer *new_buf = NULL;
pov = gst_d3d11_deinterace_get_pov_from_buffer (self, output);
if (pov)
return output;
if (!self->fallback_out_pool ||
!gst_buffer_pool_set_active (self->fallback_out_pool, TRUE) ||
gst_buffer_pool_acquire_buffer (self->fallback_out_pool, &new_buf,
NULL) != GST_FLOW_OK) {
GST_ERROR_OBJECT (self, "Fallback output buffer is unavailable");
gst_buffer_unref (output);
return NULL;
}
dmem = (GstD3D11Memory *) gst_buffer_peek_memory (new_buf, 0);
pov = gst_d3d11_memory_get_processor_output_view (dmem,
self->video_device, self->video_enum);
if (!pov) {
GST_ERROR_OBJECT (self, "ID3D11VideoProcessorOutputView is unavailable");
gst_buffer_unref (new_buf);
gst_buffer_unref (output);
return NULL;
}
/* copy metadata, default implementation of baseclass will copy everything
* what we need */
GST_BASE_TRANSFORM_CLASS (parent_class)->copy_metadata
(GST_BASE_TRANSFORM_CAST (self), output, new_buf);
gst_buffer_unref (output);
return new_buf;
}
static GstFlowReturn
gst_d3d11_deinterlace_submit_past_frame (GstD3D11Deinterlace * self,
GstBuffer * buffer)
{
/* push head and pop tail, so that head frame can be the nearest frame
* of current frame */
g_queue_push_head (&self->past_frame_queue, buffer);
while (g_queue_get_length (&self->past_frame_queue) > self->max_past_frames) {
GstBuffer *to_drop =
(GstBuffer *) g_queue_pop_tail (&self->past_frame_queue);
if (to_drop)
gst_buffer_unref (to_drop);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_deinterlace_generate_output (GstBaseTransform * trans,
GstBuffer ** outbuf)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *inbuf;
GstBuffer *buf = NULL;
if (gst_base_transform_is_passthrough (trans)) {
return GST_BASE_TRANSFORM_CLASS (parent_class)->generate_output (trans,
outbuf);
}
*outbuf = NULL;
inbuf = self->to_process;
if (inbuf == NULL)
return GST_FLOW_OK;
ret =
GST_BASE_TRANSFORM_CLASS (parent_class)->prepare_output_buffer (trans,
inbuf, &buf);
if (ret != GST_FLOW_OK || !buf) {
GST_WARNING_OBJECT (trans, "could not get buffer from pool: %s",
gst_flow_get_name (ret));
return ret;
}
g_assert (inbuf != buf);
buf = gst_d3d11_deinterlace_ensure_output_buffer (self, buf);
if (!buf) {
GST_ERROR_OBJECT (self, "Failed to allocate output buffer to process");
return GST_FLOW_ERROR;
}
ret = gst_d3d11_deinterlace_transform (trans, inbuf, buf);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (buf);
return ret;
}
g_assert (self->num_output_per_input == 1 || self->num_output_per_input == 2);
/* Update timestamp and buffer duration.
* Here, PTS and duration of inbuf must be valid,
* unless there's programing error, since we updated timestamp and duration
* already around submit_input_buffer() */
if (self->num_output_per_input == 2) {
if (!GST_BUFFER_DURATION_IS_VALID (inbuf)) {
GST_LOG_OBJECT (self, "Input buffer duration is unknown");
} else if (!GST_BUFFER_PTS_IS_VALID (inbuf)) {
GST_LOG_OBJECT (self, "Input buffer timestamp is unknown");
} else {
GstClockTime duration = GST_BUFFER_DURATION (inbuf) / 2;
gboolean second_field = FALSE;
if (self->first_output) {
/* For reverse playback, first output is the second field */
if (trans->segment.rate < 0)
second_field = TRUE;
else
second_field = FALSE;
} else {
if (trans->segment.rate < 0)
second_field = FALSE;
else
second_field = TRUE;
}
GST_BUFFER_DURATION (buf) = duration;
if (second_field) {
GST_BUFFER_PTS (buf) = GST_BUFFER_PTS (buf) + duration;
}
}
}
*outbuf = buf;
self->first_output = FALSE;
self->num_transformed++;
/* https://docs.microsoft.com/en-us/windows/win32/api/d3d12video/ns-d3d12video-d3d12_video_process_input_stream_rate */
if (self->method == GST_D3D11_DEINTERLACE_METHOD_BLEND) {
self->input_index += 2;
} else {
self->input_index++;
}
if (self->num_output_per_input <= self->num_transformed) {
/* Move processed frame to past_frame queue */
gst_d3d11_deinterlace_submit_past_frame (self, self->to_process);
self->to_process = NULL;
}
return ret;
}
static GstFlowReturn
gst_d3d11_deinterlace_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
ID3D11VideoProcessorInputView *piv;
ID3D11VideoProcessorOutputView *pov;
D3D11_VIDEO_FRAME_FORMAT frame_foramt = D3D11_VIDEO_FRAME_FORMAT_PROGRESSIVE;
D3D11_VIDEO_PROCESSOR_STREAM proc_stream = { 0, };
ID3D11VideoProcessorInputView *future_surfaces[MAX_NUM_REFERENCES] =
{ NULL, };
ID3D11VideoProcessorInputView *past_surfaces[MAX_NUM_REFERENCES] = { NULL, };
guint future_frames = 0;
guint past_frames = 0;
HRESULT hr;
guint i;
/* Input/output buffer must be holding valid D3D11 memory here,
* as we checked it already in submit_input_buffer() and generate_output() */
piv = gst_d3d11_deinterace_get_piv_from_buffer (self, inbuf);
if (!piv) {
GST_ERROR_OBJECT (self, "ID3D11VideoProcessorInputView is unavailable");
return GST_FLOW_ERROR;
}
pov = gst_d3d11_deinterace_get_pov_from_buffer (self, outbuf);
if (!pov) {
GST_ERROR_OBJECT (self, "ID3D11VideoProcessorOutputView is unavailable");
return GST_FLOW_ERROR;
}
/* Check field order */
if (GST_VIDEO_INFO_INTERLACE_MODE (&self->in_info) ==
GST_VIDEO_INTERLACE_MODE_MIXED ||
(GST_VIDEO_INFO_INTERLACE_MODE (&self->in_info) ==
GST_VIDEO_INTERLACE_MODE_INTERLEAVED &&
GST_VIDEO_INFO_FIELD_ORDER (&self->in_info) ==
GST_VIDEO_FIELD_ORDER_UNKNOWN)) {
if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_VIDEO_BUFFER_FLAG_INTERLACED)) {
frame_foramt = D3D11_VIDEO_FRAME_FORMAT_PROGRESSIVE;
} else if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_VIDEO_BUFFER_FLAG_TFF)) {
frame_foramt = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_TOP_FIELD_FIRST;
} else {
frame_foramt = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_BOTTOM_FIELD_FIRST;
}
} else if (GST_VIDEO_INFO_FIELD_ORDER (&self->in_info) ==
GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST) {
frame_foramt = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_TOP_FIELD_FIRST;
} else if (GST_VIDEO_INFO_FIELD_ORDER (&self->in_info) ==
GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST) {
frame_foramt = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_BOTTOM_FIELD_FIRST;
}
if (frame_foramt == D3D11_VIDEO_FRAME_FORMAT_PROGRESSIVE) {
/* Progressive stream will produce only one frame per frame */
self->num_output_per_input = 1;
} else if (self->method != GST_D3D11_DEINTERLACE_METHOD_BLEND &&
self->method != GST_D3D11_DEINTERLACE_METHOD_BOB) {
/* Fill reference frames */
for (i = 0; i < g_queue_get_length (&self->future_frame_queue) &&
i < G_N_ELEMENTS (future_surfaces); i++) {
GstBuffer *future_buf;
ID3D11VideoProcessorInputView *future_piv;
future_buf =
(GstBuffer *) g_queue_peek_nth (&self->future_frame_queue, i);
future_piv = gst_d3d11_deinterace_get_piv_from_buffer (self, future_buf);
if (!future_piv) {
GST_WARNING_OBJECT (self,
"Couldn't get ID3D11VideoProcessorInputView from future "
"reference %d", i);
break;
}
future_surfaces[i] = future_piv;
future_frames++;
}
for (i = 0; i < g_queue_get_length (&self->past_frame_queue) &&
i < G_N_ELEMENTS (past_surfaces); i++) {
GstBuffer *past_buf;
ID3D11VideoProcessorInputView *past_piv;
past_buf = (GstBuffer *) g_queue_peek_nth (&self->past_frame_queue, i);
past_piv = gst_d3d11_deinterace_get_piv_from_buffer (self, past_buf);
if (!past_piv) {
GST_WARNING_OBJECT (self,
"Couldn't get ID3D11VideoProcessorInputView from past "
"reference %d", i);
break;
}
past_surfaces[i] = past_piv;
past_frames++;
}
}
proc_stream.Enable = TRUE;
proc_stream.pInputSurface = piv;
proc_stream.InputFrameOrField = self->input_index;
/* FIXME: This is wrong for inverse telechin case */
/* OutputIndex == 0 for the first field, and 1 for the second field */
if (self->num_output_per_input == 2) {
if (trans->segment.rate < 0.0) {
/* Process the second frame first in case of reverse playback */
proc_stream.OutputIndex = self->first_output ? 1 : 0;
} else {
proc_stream.OutputIndex = self->first_output ? 0 : 1;
}
} else {
proc_stream.OutputIndex = 0;
}
if (future_frames) {
proc_stream.FutureFrames = future_frames;
proc_stream.ppFutureSurfaces = future_surfaces;
}
if (past_frames) {
proc_stream.PastFrames = past_frames;
proc_stream.ppPastSurfaces = past_surfaces;
}
GstD3D11DeviceLockGuard lk (self->device);
self->video_context->VideoProcessorSetStreamFrameFormat (self->video_proc, 0,
frame_foramt);
hr = self->video_context->VideoProcessorBlt (self->video_proc, pov, 0,
1, &proc_stream);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to perform deinterlacing");
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
static gboolean
gst_d3d11_deinterlace_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:
/* stream-start means discont stream from previous one. Drain pending
* frame if any */
GST_DEBUG_OBJECT (self, "Have stream-start, drain frames if any");
gst_d3d11_deinterlace_drain (self);
break;
case GST_EVENT_CAPS:{
GstPad *sinkpad = GST_BASE_TRANSFORM_SINK_PAD (trans);
GstCaps *prev_caps;
prev_caps = gst_pad_get_current_caps (sinkpad);
if (prev_caps) {
GstCaps *caps;
gst_event_parse_caps (event, &caps);
/* If caps is updated, drain pending frames */
if (!gst_caps_is_equal (prev_caps, caps)) {
GST_DEBUG_OBJECT (self, "Caps updated from %" GST_PTR_FORMAT " to %"
GST_PTR_FORMAT, prev_caps, caps);
gst_d3d11_deinterlace_drain (self);
}
gst_caps_unref (prev_caps);
}
break;
}
case GST_EVENT_SEGMENT:
/* new segment would mean that temporal discontinuity */
case GST_EVENT_SEGMENT_DONE:
case GST_EVENT_EOS:
GST_DEBUG_OBJECT (self, "Have event %s, drain frames if any",
GST_EVENT_TYPE_NAME (event));
gst_d3d11_deinterlace_drain (self);
break;
case GST_EVENT_FLUSH_STOP:
EnterCriticalSection (&self->lock);
gst_d3d11_deinterlace_reset_history (self);
LeaveCriticalSection (&self->lock);
break;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
}
static void
gst_d3d11_deinterlace_before_transform (GstBaseTransform * trans,
GstBuffer * buffer)
{
GstD3D11Deinterlace *self = GST_D3D11_DEINTERLACE (trans);
GstD3D11DeinterlaceClass *klass = GST_D3D11_DEINTERLACE_GET_CLASS (self);
GstD3D11Memory *dmem;
GstMemory *mem;
GstCaps *in_caps = NULL;
GstCaps *out_caps = NULL;
guint adapter = 0;
mem = gst_buffer_peek_memory (buffer, 0);
if (!gst_is_d3d11_memory (mem)) {
GST_ELEMENT_ERROR (self, CORE, FAILED, (NULL), ("Invalid memory"));
return;
}
dmem = GST_D3D11_MEMORY_CAST (mem);
/* Same device, nothing to do */
if (dmem->device == self->device)
return;
g_object_get (dmem->device, "adapter", &adapter, NULL);
/* We have per-GPU deinterlace elements because of different capability
* per GPU. so, cannot accept other GPU at the moment */
if (adapter != klass->adapter)
return;
GST_INFO_OBJECT (self, "Updating device %" GST_PTR_FORMAT " -> %"
GST_PTR_FORMAT, self->device, dmem->device);
/* Drain buffers before updating device */
gst_d3d11_deinterlace_drain (self);
gst_object_unref (self->device);
self->device = (GstD3D11Device *) gst_object_ref (dmem->device);
in_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SINK_PAD (trans));
if (!in_caps) {
GST_WARNING_OBJECT (self, "sinkpad has null caps");
goto out;
}
out_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SRC_PAD (trans));
if (!out_caps) {
GST_WARNING_OBJECT (self, "Has no configured output caps");
goto out;
}
gst_d3d11_deinterlace_set_caps (trans, in_caps, out_caps);
/* Mark reconfigure so that we can update pool */
gst_base_transform_reconfigure_src (trans);
out:
gst_clear_caps (&in_caps);
gst_clear_caps (&out_caps);
return;
}
/* FIXME: might be job of basetransform */
static GstFlowReturn
gst_d3d11_deinterlace_drain (GstD3D11Deinterlace * self)
{
GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (self);
GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *outbuf = NULL;
EnterCriticalSection (&self->lock);
if (gst_base_transform_is_passthrough (trans)) {
/* If we were passthrough, nothing to do */
goto done;
} else if (!g_queue_get_length (&self->future_frame_queue)) {
/* No pending data, nothing to do */
goto done;
}
while (g_queue_get_length (&self->future_frame_queue)) {
gst_d3d11_deinterlace_submit_future_frame (self, NULL);
if (!self->to_process)
break;
do {
outbuf = NULL;
ret = gst_d3d11_deinterlace_generate_output (trans, &outbuf);
if (outbuf != NULL) {
/* Release lock during push buffer */
LeaveCriticalSection (&self->lock);
ret = gst_pad_push (trans->srcpad, outbuf);
EnterCriticalSection (&self->lock);
}
} while (ret == GST_FLOW_OK && outbuf != NULL);
}
done:
gst_d3d11_deinterlace_reset_history (self);
LeaveCriticalSection (&self->lock);
return ret;
}
/**
* SECTION:element-d3d11deinterlace
* @title: d3d11deinterlace
* @short_description: A Direct3D11 based deinterlace element
*
* Deinterlacing interlaced video frames to progressive video frames by using
* ID3D11VideoProcessor API.
*
* ## Example launch line
* ```
* gst-launch-1.0 filesrc location=/path/to/h264/file ! parsebin ! d3d11h264dec ! d3d11deinterlace ! d3d11videosink
* ```
*
* Since: 1.20
*
*/
/* GstD3D11DeinterlaceBin */
enum
{
PROP_BIN_0,
/* basetransform */
PROP_BIN_QOS,
/* deinterlace */
PROP_BIN_ADAPTER,
PROP_BIN_DEVICE_ID,
PROP_BIN_VENDOR_ID,
PROP_BIN_METHOD,
PROP_BIN_SUPPORTED_METHODS,
};
typedef struct _GstD3D11DeinterlaceBin
{
GstBin parent;
GstPad *sinkpad;
GstPad *srcpad;
GstElement *deinterlace;
GstElement *in_convert;
GstElement *out_convert;
GstElement *upload;
GstElement *download;
} GstD3D11DeinterlaceBin;
typedef struct _GstD3D11DeinterlaceBinClass
{
GstBinClass parent_class;
guint adapter;
GType child_type;
} GstD3D11DeinterlaceBinClass;
static GstElementClass *bin_parent_class = NULL;
#define GST_D3D11_DEINTERLACE_BIN(object) ((GstD3D11DeinterlaceBin *) (object))
#define GST_D3D11_DEINTERLACE_BIN_GET_CLASS(object) \
(G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object), \
GstD3D11DeinterlaceBinClass))
#define GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE(format) \
"video/x-raw, " \
"format = (string) " format ", " \
"width = (int) [1, 8192], " \
"height = (int) [1, 8192] "
#define GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES(features,format) \
"video/x-raw(" features "), " \
"format = (string) " format ", " \
"width = (int) [1, 8192], " \
"height = (int) [1, 8192] "
static GstStaticPadTemplate bin_sink_template_caps =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_SINK_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SINK_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE (GST_D3D11_SINK_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SINK_FORMATS)
));
static GstStaticPadTemplate bin_src_template_caps =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY, GST_D3D11_SRC_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SRC_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE (GST_D3D11_SRC_FORMATS) "; "
GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_D3D11_SRC_FORMATS)
));
static void gst_d3d11_deinterlace_bin_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_d3d11_deinterlace_bin_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void
gst_d3d11_deinterlace_bin_class_init (GstD3D11DeinterlaceBinClass * klass,
gpointer data)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstD3D11DeinterlaceClassData *cdata = (GstD3D11DeinterlaceClassData *) data;
gchar *long_name;
bin_parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
gobject_class->get_property = gst_d3d11_deinterlace_bin_get_property;
gobject_class->set_property = gst_d3d11_deinterlace_bin_set_property;
/* basetransform */
g_object_class_install_property (gobject_class, PROP_BIN_QOS,
g_param_spec_boolean ("qos", "QoS", "Handle Quality-of-Service events",
FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
/* deinterlace */
g_object_class_install_property (gobject_class, PROP_BIN_ADAPTER,
g_param_spec_uint ("adapter", "Adapter",
"DXGI Adapter index for creating device",
0, G_MAXUINT32, cdata->adapter,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BIN_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BIN_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BIN_METHOD,
g_param_spec_flags ("method", "Method",
"Deinterlace Method. Use can set multiple methods as a flagset "
"and element will select one of method automatically. "
"If deinterlacing device failed to deinterlace with given mode, "
"fallback might happen by the device",
GST_TYPE_D3D11_DEINTERLACE_METHOD, cdata->device_caps.default_method,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY)));
g_object_class_install_property (gobject_class, PROP_BIN_SUPPORTED_METHODS,
g_param_spec_flags ("supported-methods", "Supported Methods",
"Set of supported deinterlace methods by device",
GST_TYPE_D3D11_DEINTERLACE_METHOD,
cdata->device_caps.supported_methods,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
long_name = g_strdup_printf ("Direct3D11 %s Deinterlacer Bin",
cdata->description);
gst_element_class_set_metadata (element_class, long_name,
"Filter/Effect/Video/Deinterlace/Hardware",
"A Direct3D11 based deinterlacer bin",
"Seungha Yang <seungha@centricular.com>");
g_free (long_name);
gst_element_class_add_static_pad_template (element_class,
&bin_sink_template_caps);
gst_element_class_add_static_pad_template (element_class,
&bin_src_template_caps);
klass->adapter = cdata->adapter;
klass->child_type = cdata->deinterlace_type;
gst_d3d11_deinterlace_class_data_unref (cdata);
}
static void
gst_d3d11_deinterlace_bin_init (GstD3D11DeinterlaceBin * self)
{
GstD3D11DeinterlaceBinClass *klass =
GST_D3D11_DEINTERLACE_BIN_GET_CLASS (self);
GstPad *pad;
self->deinterlace = (GstElement *) g_object_new (klass->child_type,
"name", "deinterlace", NULL);
self->in_convert = gst_element_factory_make ("d3d11colorconvert", NULL);
self->out_convert = gst_element_factory_make ("d3d11colorconvert", NULL);
self->upload = gst_element_factory_make ("d3d11upload", NULL);
self->download = gst_element_factory_make ("d3d11download", NULL);
/* Specify DXGI adapter index to use */
g_object_set (G_OBJECT (self->in_convert), "adapter", klass->adapter, NULL);
g_object_set (G_OBJECT (self->out_convert), "adapter", klass->adapter, NULL);
g_object_set (G_OBJECT (self->upload), "adapter", klass->adapter, NULL);
g_object_set (G_OBJECT (self->download), "adapter", klass->adapter, NULL);
gst_bin_add_many (GST_BIN_CAST (self), self->upload, self->in_convert,
self->deinterlace, self->out_convert, self->download, NULL);
gst_element_link_many (self->upload, self->in_convert, self->deinterlace,
self->out_convert, self->download, NULL);
pad = gst_element_get_static_pad (self->upload, "sink");
self->sinkpad = gst_ghost_pad_new ("sink", pad);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
gst_object_unref (pad);
pad = gst_element_get_static_pad (self->download, "src");
self->srcpad = gst_ghost_pad_new ("src", pad);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->srcpad);
gst_object_unref (pad);
}
static void
gst_d3d11_deinterlace_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstD3D11DeinterlaceBin *self = GST_D3D11_DEINTERLACE_BIN (object);
g_object_set_property (G_OBJECT (self->deinterlace), pspec->name, value);
}
static void
gst_d3d11_deinterlace_bin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstD3D11DeinterlaceBin *self = GST_D3D11_DEINTERLACE_BIN (object);
g_object_get_property (G_OBJECT (self->deinterlace), pspec->name, value);
}
void
gst_d3d11_deinterlace_register (GstPlugin * plugin, GstD3D11Device * device,
guint rank)
{
GType type;
GType bin_type;
gchar *type_name;
gchar *feature_name;
guint index = 0;
GTypeInfo type_info = {
sizeof (GstD3D11DeinterlaceClass),
NULL,
NULL,
(GClassInitFunc) gst_d3d11_deinterlace_class_init,
NULL,
NULL,
sizeof (GstD3D11Deinterlace),
0,
(GInstanceInitFunc) gst_d3d11_deinterlace_init,
};
GTypeInfo bin_type_info = {
sizeof (GstD3D11DeinterlaceBinClass),
NULL,
NULL,
(GClassInitFunc) gst_d3d11_deinterlace_bin_class_init,
NULL,
NULL,
sizeof (GstD3D11DeinterlaceBin),
0,
(GInstanceInitFunc) gst_d3d11_deinterlace_bin_init,
};
GstCaps *sink_caps = NULL;
GstCaps *src_caps = NULL;
GstCaps *caps = NULL;
GstCapsFeatures *caps_features;
ID3D11Device *device_handle;
ID3D11DeviceContext *context_handle;
/* *INDENT-OFF* */
ComPtr<ID3D11VideoDevice> video_device;
ComPtr<ID3D11VideoContext> video_context;
ComPtr<ID3D11VideoProcessorEnumerator> video_proc_enum;
ComPtr<ID3D11VideoProcessorEnumerator1> video_proc_enum1;
/* *INDENT-ON* */
HRESULT hr;
D3D11_VIDEO_PROCESSOR_CONTENT_DESC desc;
D3D11_VIDEO_PROCESSOR_CAPS proc_caps = { 0, };
UINT supported_methods = 0;
GstD3D11DeinterlaceMethod default_method;
gboolean blend;
gboolean bob;
gboolean adaptive;
gboolean mocomp;
/* NOTE: processor might be able to handle other formats.
* However, not all YUV formats can be used for render target.
* For instance, DXGI_FORMAT_Y210 and DXGI_FORMAT_Y410 formats cannot be
* render target. In practice, interlaced stream would output of video
* decoders, so NV12/P010/P016 can cover most of real-world use case.
*/
DXGI_FORMAT formats_to_check[] = {
DXGI_FORMAT_NV12, /* NV12 */
DXGI_FORMAT_P010, /* P010_10LE */
DXGI_FORMAT_P016, /* P016_LE */
};
GValue *supported_formats = NULL;
GstD3D11DeinterlaceClassData *cdata;
guint max_past_frames = 0;
guint max_future_frames = 0;
guint i;
device_handle = gst_d3d11_device_get_device_handle (device);
context_handle = gst_d3d11_device_get_device_context_handle (device);
hr = device_handle->QueryInterface (IID_PPV_ARGS (&video_device));
if (!gst_d3d11_result (hr, device))
return;
hr = context_handle->QueryInterface (IID_PPV_ARGS (&video_context));
if (!gst_d3d11_result (hr, device))
return;
memset (&desc, 0, sizeof (D3D11_VIDEO_PROCESSOR_CONTENT_DESC));
desc.InputFrameFormat = D3D11_VIDEO_FRAME_FORMAT_INTERLACED_TOP_FIELD_FIRST;
desc.InputWidth = 320;
desc.InputHeight = 240;
desc.OutputWidth = 320;
desc.OutputHeight = 240;
desc.Usage = D3D11_VIDEO_USAGE_PLAYBACK_NORMAL;
hr = video_device->CreateVideoProcessorEnumerator (&desc, &video_proc_enum);
if (!gst_d3d11_result (hr, device))
return;
/* We need ID3D11VideoProcessorEnumerator1 interface to check conversion
* capability of device via CheckVideoProcessorFormatConversion() */
hr = video_proc_enum.As (&video_proc_enum1);
if (!gst_d3d11_result (hr, device))
return;
hr = video_proc_enum->GetVideoProcessorCaps (&proc_caps);
if (!gst_d3d11_result (hr, device))
return;
for (i = 0; i < proc_caps.RateConversionCapsCount; i++) {
D3D11_VIDEO_PROCESSOR_RATE_CONVERSION_CAPS rate_conv_caps = { 0, };
hr = video_proc_enum->GetVideoProcessorRateConversionCaps (i,
&rate_conv_caps);
if (FAILED (hr))
continue;
supported_methods |= rate_conv_caps.ProcessorCaps;
max_past_frames = MAX (max_past_frames, rate_conv_caps.PastFrames);
max_future_frames = MAX (max_future_frames, rate_conv_caps.FutureFrames);
}
if (supported_methods == 0)
return;
#define IS_SUPPORTED_METHOD(flags,val) (flags & val) == val
blend = IS_SUPPORTED_METHOD (supported_methods,
GST_D3D11_DEINTERLACE_METHOD_BLEND);
bob = IS_SUPPORTED_METHOD (supported_methods,
GST_D3D11_DEINTERLACE_METHOD_BOB);
adaptive = IS_SUPPORTED_METHOD (supported_methods,
GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE);
mocomp = IS_SUPPORTED_METHOD (supported_methods,
GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION);
#undef IS_SUPPORTED_METHOD
if (!blend && !bob && !adaptive && !mocomp)
return;
/* Drop all not supported methods from flags */
supported_methods = supported_methods &
(GST_D3D11_DEINTERLACE_METHOD_BLEND | GST_D3D11_DEINTERLACE_METHOD_BOB |
GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE |
GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION);
/* Prefer bob, it's equivalent to "linear" which is default mode of
* software deinterlace element, also it's fallback mode
* for our "adaptive" and "mocomp" modes. Note that since Direct3D12, "blend"
* mode is no more supported, instead "bob" and "custom" mode are suported
* by Direct3D12 */
if (bob) {
default_method = GST_D3D11_DEINTERLACE_METHOD_BOB;
} else if (adaptive) {
default_method = GST_D3D11_DEINTERLACE_METHOD_ADAPTVIE;
} else if (mocomp) {
default_method = GST_D3D11_DEINTERLACE_METHOD_MOTION_COMPENSATION;
} else if (blend) {
default_method = GST_D3D11_DEINTERLACE_METHOD_BLEND;
} else {
/* Programming error */
g_return_if_reached ();
}
for (i = 0; i < G_N_ELEMENTS (formats_to_check); i++) {
UINT flags = 0;
GValue val = G_VALUE_INIT;
GstVideoFormat format;
BOOL supported = FALSE;
hr = video_proc_enum->CheckVideoProcessorFormat (formats_to_check[i],
&flags);
if (FAILED (hr))
continue;
/* D3D11 video processor can support other conversion at once,
* including color format conversion.
* But not all combinations of in/out pairs can be supported.
* To make things simple, this element will do only deinterlacing
* (might not be optimal in terms of processing power/resource though) */
/* D3D11_VIDEO_PROCESSOR_FORMAT_SUPPORT_INPUT = 0x1,
* D3D11_VIDEO_PROCESSOR_FORMAT_SUPPORT_OUTPUT = 0x2,
* MinGW header might not be defining the above enum values */
if ((flags & 0x3) != 0x3)
continue;
format = gst_d3d11_dxgi_format_to_gst (formats_to_check[i]);
/* This is programming error! */
if (format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR ("Couldn't convert DXGI format %d to video format",
formats_to_check[i]);
continue;
}
hr = video_proc_enum1->CheckVideoProcessorFormatConversion
(formats_to_check[i], DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P709,
formats_to_check[i], DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P709,
&supported);
if (FAILED (hr) || !supported)
continue;
if (!supported_formats) {
supported_formats = g_new0 (GValue, 1);
g_value_init (supported_formats, GST_TYPE_LIST);
}
if (formats_to_check[i] == DXGI_FORMAT_P016) {
/* This is used for P012 as well */
g_value_init (&val, G_TYPE_STRING);
g_value_set_static_string (&val,
gst_video_format_to_string (GST_VIDEO_FORMAT_P012_LE));
gst_value_list_append_and_take_value (supported_formats, &val);
}
g_value_init (&val, G_TYPE_STRING);
g_value_set_static_string (&val, gst_video_format_to_string (format));
gst_value_list_append_and_take_value (supported_formats, &val);
}
if (!supported_formats)
return;
caps = gst_caps_new_empty_simple ("video/x-raw");
/* FIXME: Check supported resolution, it would be different from
* supported max texture dimension */
gst_caps_set_simple (caps,
"width", GST_TYPE_INT_RANGE, 1, 8192,
"height", GST_TYPE_INT_RANGE, 1, 8192, NULL);
gst_caps_set_value (caps, "format", supported_formats);
g_value_unset (supported_formats);
g_free (supported_formats);
/* TODO: Add alternating deinterlace */
src_caps = gst_caps_copy (caps);
caps_features = gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY,
NULL);
gst_caps_set_features_simple (src_caps, caps_features);
caps_features = gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, NULL);
gst_caps_set_features_simple (caps, caps_features);
gst_caps_append (src_caps, caps);
sink_caps = gst_caps_copy (src_caps);
GST_MINI_OBJECT_FLAG_SET (sink_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (src_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
cdata = gst_d3d11_deinterlace_class_data_new ();
cdata->sink_caps = sink_caps;
cdata->src_caps = src_caps;
cdata->device_caps.supported_methods =
(GstD3D11DeinterlaceMethod) supported_methods;
cdata->device_caps.default_method = default_method;
cdata->device_caps.max_past_frames = max_past_frames;
cdata->device_caps.max_future_frames = max_future_frames;
g_object_get (device, "adapter", &cdata->adapter,
"device-id", &cdata->device_id, "vendor-id", &cdata->vendor_id,
"description", &cdata->description, NULL);
type_info.class_data = cdata;
bin_type_info.class_data = gst_d3d11_deinterlace_class_data_ref (cdata);
type_name = g_strdup ("GstD3D11Deinterlace");
feature_name = g_strdup ("d3d11deinterlaceelement");
while (g_type_from_name (type_name)) {
index++;
g_free (type_name);
g_free (feature_name);
type_name = g_strdup_printf ("GstD3D11Device%dDeinterlace", index);
feature_name = g_strdup_printf ("d3d11device%ddeinterlaceelement", index);
}
type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,
type_name, &type_info, (GTypeFlags) 0);
cdata->deinterlace_type = type;
if (index != 0)
gst_element_type_set_skip_documentation (type);
if (!gst_element_register (plugin, feature_name, GST_RANK_NONE, type))
GST_WARNING ("Failed to register plugin '%s'", type_name);
g_free (type_name);
g_free (feature_name);
/* Register wrapper bin */
index = 0;
type_name = g_strdup ("GstD3D11DeinterlaceBin");
feature_name = g_strdup ("d3d11deinterlace");
while (g_type_from_name (type_name)) {
index++;
g_free (type_name);
g_free (feature_name);
type_name = g_strdup_printf ("GstD3D11Device%dDeinterlaceBin", index);
feature_name = g_strdup_printf ("d3d11device%ddeinterlace", index);
}
bin_type = g_type_register_static (GST_TYPE_BIN,
type_name, &bin_type_info, (GTypeFlags) 0);
/* make lower rank than default device */
if (rank > 0 && index != 0)
rank--;
if (index != 0)
gst_element_type_set_skip_documentation (bin_type);
if (!gst_element_register (plugin, feature_name, rank, bin_type))
GST_WARNING ("Failed to register plugin '%s'", type_name);
g_free (type_name);
g_free (feature_name);
}
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