/* GStreamer * Copyright (C) 2021 Seungha Yang * * 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 #endif #include #include #include "gstd3d11deinterlace.h" #include "gstd3d11pluginutils.h" #include #include /* *INDENT-OFF* */ using namespace Microsoft::WRL; G_BEGIN_DECLS GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_deinterlace_debug); #define GST_CAT_DEFAULT gst_d3d11_deinterlace_debug G_END_DECLS /* *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 */ /* g_queue_clear_full is available since 2.60 */ #if !GLIB_CHECK_VERSION(2,60,0) #define g_queue_clear_full gst_d3d11_deinterlace_g_queue_clear_full static void gst_d3d11_deinterlace_g_queue_clear_full (GQueue * queue, GDestroyNotify free_func) { g_return_if_fail (queue != NULL); if (free_func != NULL) g_queue_foreach (queue, (GFunc) free_func, NULL); g_queue_clear (queue); } #endif 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 gsize method_type = 0; if (g_once_init_enter (&method_type)) { 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, NULL, NULL}, }; GType tmp = g_flags_register_static ("GstD3D11DeinterlaceMethod", method_types); g_once_init_leave (&method_type, tmp); } return (GType) 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; GRecMutex 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)) #define GST_D3D11_DEINTERLACE_LOCK(self) \ g_rec_mutex_lock (&GST_D3D11_DEINTERLACE (self)->lock); #define GST_D3D11_DEINTERLACE_UNLOCK(self) \ g_rec_mutex_unlock (&GST_D3D11_DEINTERLACE (self)->lock); 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 "); 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); g_rec_mutex_init (&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); g_rec_mutex_clear (&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) { GST_D3D11_DEINTERLACE_LOCK (self); 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; GST_D3D11_DEINTERLACE_UNLOCK (self); } 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, (GstD3D11AllocationFlags) 0, D3D11_BIND_RENDER_TARGET); } 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); size = GST_D3D11_BUFFER_POOL (pool)->buffer_size; 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, (GstD3D11AllocationFlags) 0, D3D11_BIND_RENDER_TARGET); } 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); size = GST_D3D11_BUFFER_POOL (pool)->buffer_size; 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, (GstD3D11AllocationFlags) 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, (GstD3D11AllocationFlags) 0, D3D11_BIND_RENDER_TARGET); 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 video_enum; ComPtr 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; gst_d3d11_device_lock (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); gst_d3d11_device_unlock (self->device); 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 implemenation 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 implemenation 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; } gst_d3d11_device_lock (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); gst_d3d11_device_unlock (self->device); 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: GST_D3D11_DEINTERLACE_LOCK (self); gst_d3d11_deinterlace_reset_history (self); GST_D3D11_DEINTERLACE_UNLOCK (self); 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; GST_D3D11_DEINTERLACE_LOCK (self); 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 */ GST_D3D11_DEINTERLACE_UNLOCK (self); ret = gst_pad_push (trans->srcpad, outbuf); GST_D3D11_DEINTERLACE_LOCK (self); } } while (ret == GST_FLOW_OK && outbuf != NULL); } done: gst_d3d11_deinterlace_reset_history (self); GST_D3D11_DEINTERLACE_UNLOCK (self); 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) [64, 8192], " \ "height = (int) [64, 8192] " #define GST_D3D11_DEINTERLACE_BIN_CAPS_MAKE_WITH_FEATURES(features,format) \ "video/x-raw(" features "), " \ "format = (string) " format ", " \ "width = (int) [64, 8192], " \ "height = (int) [64, 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 "); 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 video_device; ComPtr video_context; ComPtr video_proc_enum; ComPtr 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); } 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, 64, 8192, "height", GST_TYPE_INT_RANGE, 64, 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 (!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 (!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); }