/* * GStreamer * Copyright (C) 2005 Martin Eikermann * Copyright (C) 2008 Sebastian Dröge * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstdeinterlace2.h" #include #include #include "tvtime/plugins.h" #include GST_DEBUG_CATEGORY_STATIC (deinterlace2_debug); #define GST_CAT_DEFAULT (deinterlace2_debug) /* Object signals and args */ enum { LAST_SIGNAL }; /* Arguments */ enum { ARG_0, ARG_METHOD, ARG_FIELDS, ARG_FIELD_LAYOUT }; G_DEFINE_TYPE (GstDeinterlaceMethod, gst_deinterlace_method, GST_TYPE_OBJECT); static void gst_deinterlace_method_class_init (GstDeinterlaceMethodClass * klass) { klass->available = TRUE; } static void gst_deinterlace_method_init (GstDeinterlaceMethod * self) { } static void gst_deinterlace_method_deinterlace_frame (GstDeinterlaceMethod * self, GstDeinterlace2 * object) { GstDeinterlaceMethodClass *klass = GST_DEINTERLACE_METHOD_GET_CLASS (self); klass->deinterlace_frame (self, object); } static gint gst_deinterlace_method_get_fields_required (GstDeinterlaceMethod * self) { GstDeinterlaceMethodClass *klass = GST_DEINTERLACE_METHOD_GET_CLASS (self); return klass->fields_required; } static gint gst_deinterlace_method_get_latency (GstDeinterlaceMethod * self) { GstDeinterlaceMethodClass *klass = GST_DEINTERLACE_METHOD_GET_CLASS (self); return klass->latency; } #define GST_TYPE_DEINTERLACE2_METHODS (gst_deinterlace2_methods_get_type ()) static GType gst_deinterlace2_methods_get_type (void) { static GType deinterlace2_methods_type = 0; static const GEnumValue methods_types[] = { {GST_DEINTERLACE2_TOMSMOCOMP, "Toms Motion Compensation", "tomsmocomp"}, {GST_DEINTERLACE2_GREEDY_H, "Greedy High Motion", "greedyh"}, {GST_DEINTERLACE2_GREEDY_L, "Greedy Low Motion", "greedyl"}, {GST_DEINTERLACE2_VFIR, "Vertical Blur", "vfir"}, {0, NULL, NULL}, }; if (!deinterlace2_methods_type) { deinterlace2_methods_type = g_enum_register_static ("GstDeinterlace2Methods", methods_types); } return deinterlace2_methods_type; } #define GST_TYPE_DEINTERLACE2_FIELDS (gst_deinterlace2_fields_get_type ()) static GType gst_deinterlace2_fields_get_type (void) { static GType deinterlace2_fields_type = 0; static const GEnumValue fields_types[] = { {GST_DEINTERLACE2_ALL, "All fields", "all"}, {GST_DEINTERLACE2_TF, "Top fields only", "top"}, {GST_DEINTERLACE2_BF, "Bottom fields only", "bottom"}, {0, NULL, NULL}, }; if (!deinterlace2_fields_type) { deinterlace2_fields_type = g_enum_register_static ("GstDeinterlace2Fields", fields_types); } return deinterlace2_fields_type; } #define GST_TYPE_DEINTERLACE2_FIELD_LAYOUT (gst_deinterlace2_field_layout_get_type ()) static GType gst_deinterlace2_field_layout_get_type (void) { static GType deinterlace2_field_layout_type = 0; static const GEnumValue field_layout_types[] = { {GST_DEINTERLACE2_LAYOUT_AUTO, "Auto detection", "auto"}, {GST_DEINTERLACE2_LAYOUT_TFF, "Top field first", "tff"}, {GST_DEINTERLACE2_LAYOUT_BFF, "Bottom field first", "bff"}, {0, NULL, NULL}, }; if (!deinterlace2_field_layout_type) { deinterlace2_field_layout_type = g_enum_register_static ("GstDeinterlace2FieldLayout", field_layout_types); } return deinterlace2_field_layout_type; } static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("YUY2")) ); static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("YUY2")) ); static void gst_deinterlace2_finalize (GObject * object); static void gst_deinterlace2_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_deinterlace2_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_deinterlace2_setcaps (GstPad * pad, GstCaps * caps); static gboolean gst_deinterlace2_sink_event (GstPad * pad, GstEvent * event); static GstFlowReturn gst_deinterlace2_chain (GstPad * pad, GstBuffer * buffer); static GstStateChangeReturn gst_deinterlace2_change_state (GstElement * element, GstStateChange transition); static gboolean gst_deinterlace2_src_event (GstPad * pad, GstEvent * event); static gboolean gst_deinterlace2_src_query (GstPad * pad, GstQuery * query); static const GstQueryType *gst_deinterlace2_src_query_types (GstPad * pad); static void gst_deinterlace2_reset (GstDeinterlace2 * object); static void gst_deinterlace2_child_proxy_interface_init (gpointer g_iface, gpointer iface_data); static void _do_init (GType object_type) { const GInterfaceInfo child_proxy_interface_info = { (GInterfaceInitFunc) gst_deinterlace2_child_proxy_interface_init, NULL, /* interface_finalize */ NULL /* interface_data */ }; g_type_add_interface_static (object_type, GST_TYPE_CHILD_PROXY, &child_proxy_interface_info); } GST_BOILERPLATE_FULL (GstDeinterlace2, gst_deinterlace2, GstElement, GST_TYPE_ELEMENT, _do_init); static void gst_deinterlace2_set_method (GstDeinterlace2 * object, GstDeinterlace2Methods method) { if (object->method) { gst_child_proxy_child_removed (GST_OBJECT (object), GST_OBJECT (object->method)); gst_object_unparent (GST_OBJECT (object->method)); object->method = NULL; } switch (method) { case GST_DEINTERLACE2_TOMSMOCOMP: object->method = g_object_new (GST_TYPE_DEINTERLACE_TOMSMOCOMP, NULL); break; case GST_DEINTERLACE2_GREEDY_H: object->method = g_object_new (GST_TYPE_DEINTERLACE_GREEDY_H, NULL); break; case GST_DEINTERLACE2_GREEDY_L: object->method = g_object_new (GST_TYPE_DEINTERLACE_GREEDY_L, NULL); break; case GST_DEINTERLACE2_VFIR: object->method = g_object_new (GST_TYPE_DEINTERLACE_VFIR, NULL); break; default: GST_WARNING ("Invalid Deinterlacer Method"); return; } object->method_id = method; gst_object_set_name (GST_OBJECT (object->method), "method"); gst_object_set_parent (GST_OBJECT (object->method), GST_OBJECT (object)); gst_child_proxy_child_added (GST_OBJECT (object), GST_OBJECT (object->method)); } static void gst_deinterlace2_base_init (gpointer klass) { GstElementClass *element_class = GST_ELEMENT_CLASS (klass); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&src_templ)); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&sink_templ)); gst_element_class_set_details_simple (element_class, "Deinterlacer", "Filter/Video", "Deinterlace Methods ported from DScaler/TvTime", "Martin Eikermann , " "Sebastian Dröge "); } static void gst_deinterlace2_class_init (GstDeinterlace2Class * klass) { GObjectClass *gobject_class = (GObjectClass *) klass; GstElementClass *element_class = (GstElementClass *) klass; gobject_class->set_property = gst_deinterlace2_set_property; gobject_class->get_property = gst_deinterlace2_get_property; gobject_class->finalize = gst_deinterlace2_finalize; g_object_class_install_property (gobject_class, ARG_METHOD, g_param_spec_enum ("method", "Method", "Deinterlace Method", GST_TYPE_DEINTERLACE2_METHODS, GST_DEINTERLACE2_TOMSMOCOMP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS) ); g_object_class_install_property (gobject_class, ARG_FIELDS, g_param_spec_enum ("fields", "fields", "Fields to use for deinterlacing", GST_TYPE_DEINTERLACE2_FIELDS, GST_DEINTERLACE2_ALL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS) ); g_object_class_install_property (gobject_class, ARG_FIELD_LAYOUT, g_param_spec_enum ("tff", "tff", "Deinterlace top field first", GST_TYPE_DEINTERLACE2_FIELD_LAYOUT, GST_DEINTERLACE2_LAYOUT_AUTO, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS) ); element_class->change_state = GST_DEBUG_FUNCPTR (gst_deinterlace2_change_state); } static GstObject * gst_deinterlace2_child_proxy_get_child_by_index (GstChildProxy * child_proxy, guint index) { GstDeinterlace2 *self = GST_DEINTERLACE2 (child_proxy); g_return_val_if_fail (index == 0, NULL); return gst_object_ref (self->method); } static guint gst_deinterlace2_child_proxy_get_children_count (GstChildProxy * child_proxy) { return 1; } static void gst_deinterlace2_child_proxy_interface_init (gpointer g_iface, gpointer iface_data) { GstChildProxyInterface *iface = g_iface; iface->get_child_by_index = gst_deinterlace2_child_proxy_get_child_by_index; iface->get_children_count = gst_deinterlace2_child_proxy_get_children_count; } static void gst_deinterlace2_init (GstDeinterlace2 * object, GstDeinterlace2Class * klass) { object->sinkpad = gst_pad_new_from_static_template (&sink_templ, "sink"); gst_pad_set_chain_function (object->sinkpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_chain)); gst_pad_set_event_function (object->sinkpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_sink_event)); gst_pad_set_setcaps_function (object->sinkpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_setcaps)); gst_pad_set_getcaps_function (object->sinkpad, GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps)); gst_element_add_pad (GST_ELEMENT (object), object->sinkpad); object->srcpad = gst_pad_new_from_static_template (&src_templ, "src"); gst_pad_set_event_function (object->srcpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_src_event)); gst_pad_set_query_type_function (object->srcpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_src_query_types)); gst_pad_set_query_function (object->srcpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_src_query)); gst_pad_set_setcaps_function (object->srcpad, GST_DEBUG_FUNCPTR (gst_deinterlace2_setcaps)); gst_pad_set_getcaps_function (object->srcpad, GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps)); gst_element_add_pad (GST_ELEMENT (object), object->srcpad); gst_element_no_more_pads (GST_ELEMENT (object)); gst_deinterlace2_set_method (object, GST_DEINTERLACE2_TOMSMOCOMP); object->field_layout = GST_DEINTERLACE2_LAYOUT_AUTO; object->fields = GST_DEINTERLACE2_ALL; gst_deinterlace2_reset (object); } static void gst_deinterlace2_reset_history (GstDeinterlace2 * object) { gint i; for (i = 0; i < object->history_count; i++) { if (object->field_history[i].buf) { gst_buffer_unref (object->field_history[i].buf); object->field_history[i].buf = NULL; } } memset (object->field_history, 0, MAX_FIELD_HISTORY * sizeof (GstPicture)); object->history_count = 0; } static void gst_deinterlace2_reset (GstDeinterlace2 * object) { if (object->out_buf) { gst_buffer_unref (object->out_buf); object->out_buf = NULL; } object->output_stride = 0; object->line_length = 0; object->frame_width = 0; object->frame_height = 0; object->frame_rate_n = 0; object->frame_rate_d = 0; object->field_height = 0; object->field_stride = 0; gst_deinterlace2_reset_history (object); } static void gst_deinterlace2_set_property (GObject * _object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstDeinterlace2 *object; g_return_if_fail (GST_IS_DEINTERLACE2 (_object)); object = GST_DEINTERLACE2 (_object); switch (prop_id) { case ARG_METHOD: gst_deinterlace2_set_method (object, g_value_get_enum (value)); break; case ARG_FIELDS:{ gint oldfields; GST_OBJECT_LOCK (object); oldfields = object->fields; object->fields = g_value_get_enum (value); if (object->fields != oldfields && GST_PAD_CAPS (object->srcpad)) gst_deinterlace2_setcaps (object->sinkpad, GST_PAD_CAPS (object->sinkpad)); GST_OBJECT_UNLOCK (object); break; } case ARG_FIELD_LAYOUT: object->field_layout = g_value_get_enum (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } } static void gst_deinterlace2_get_property (GObject * _object, guint prop_id, GValue * value, GParamSpec * pspec) { GstDeinterlace2 *object; g_return_if_fail (GST_IS_DEINTERLACE2 (_object)); object = GST_DEINTERLACE2 (_object); switch (prop_id) { case ARG_METHOD: g_value_set_enum (value, object->method_id); break; case ARG_FIELDS: g_value_set_enum (value, object->fields); break; case ARG_FIELD_LAYOUT: g_value_set_enum (value, object->field_layout); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } } static void gst_deinterlace2_finalize (GObject * object) { GstDeinterlace2 *self = GST_DEINTERLACE2 (object); gst_deinterlace2_reset (self); if (self->method) { gst_object_unparent (GST_OBJECT (self->method)); self->method = NULL; } G_OBJECT_CLASS (parent_class)->finalize (object); } static GstBuffer * gst_deinterlace2_pop_history (GstDeinterlace2 * object) { GstBuffer *buffer = NULL; g_assert (object->history_count > 0); buffer = object->field_history[object->history_count - 1].buf; object->history_count--; GST_DEBUG ("pop, size(history): %d", object->history_count); return buffer; } #if 0 static GstBuffer * gst_deinterlace2_head_history (GstDeinterlace2 * object) { return object->field_history[object->history_count - 1].buf; } #endif /* invariant: field with smallest timestamp is object->field_history[object->history_count-1] */ static void gst_deinterlace2_push_history (GstDeinterlace2 * object, GstBuffer * buffer) { int i = 1; GstClockTime timestamp; g_assert (object->history_count < MAX_FIELD_HISTORY - 2); for (i = MAX_FIELD_HISTORY - 1; i >= 2; i--) { object->field_history[i].buf = object->field_history[i - 2].buf; object->field_history[i].flags = object->field_history[i - 2].flags; } if (object->field_layout == GST_DEINTERLACE2_LAYOUT_AUTO) { GST_WARNING ("Could not detect field layout. Assuming top field first."); object->field_layout = GST_DEINTERLACE2_LAYOUT_TFF; } if (object->field_layout == GST_DEINTERLACE2_LAYOUT_TFF) { GST_DEBUG ("Top field first"); object->field_history[0].buf = gst_buffer_create_sub (buffer, object->line_length, GST_BUFFER_SIZE (buffer) - object->line_length); object->field_history[0].flags = PICTURE_INTERLACED_BOTTOM; object->field_history[1].buf = buffer; object->field_history[1].flags = PICTURE_INTERLACED_TOP; } else { GST_DEBUG ("Bottom field first"); object->field_history[0].buf = buffer; object->field_history[0].flags = PICTURE_INTERLACED_TOP; object->field_history[1].buf = gst_buffer_create_sub (buffer, object->line_length, GST_BUFFER_SIZE (buffer) - object->line_length); object->field_history[1].flags = PICTURE_INTERLACED_BOTTOM; } /* Timestamps are assigned to the field buffers under the assumption that the timestamp of the buffer equals the first fields timestamp */ timestamp = GST_BUFFER_TIMESTAMP (buffer); GST_BUFFER_TIMESTAMP (object->field_history[0].buf) = timestamp + object->field_duration; GST_BUFFER_TIMESTAMP (object->field_history[1].buf) = timestamp; object->history_count += 2; GST_DEBUG ("push, size(history): %d", object->history_count); } static GstFlowReturn gst_deinterlace2_chain (GstPad * pad, GstBuffer * buf) { GstDeinterlace2 *object = NULL; GstClockTime timestamp; GstFlowReturn ret = GST_FLOW_OK; gint fields_required = 0; gint cur_field_idx = 0; object = GST_DEINTERLACE2 (GST_PAD_PARENT (pad)); gst_deinterlace2_push_history (object, buf); buf = NULL; fields_required = gst_deinterlace_method_get_fields_required (object->method); /* Not enough fields in the history */ if (object->history_count < fields_required + 1) { /* TODO: do bob or just forward frame */ GST_DEBUG ("HistoryCount=%d", object->history_count); return GST_FLOW_OK; } while (object->history_count >= fields_required) { if (object->fields == GST_DEINTERLACE2_ALL) GST_DEBUG ("All fields"); if (object->fields == GST_DEINTERLACE2_TF) GST_DEBUG ("Top fields"); if (object->fields == GST_DEINTERLACE2_BF) GST_DEBUG ("Bottom fields"); cur_field_idx = object->history_count - fields_required; if ((object->field_history[cur_field_idx].flags == PICTURE_INTERLACED_TOP && object->fields == GST_DEINTERLACE2_TF) || object->fields == GST_DEINTERLACE2_ALL) { GST_DEBUG ("deinterlacing top field"); /* create new buffer */ ret = gst_pad_alloc_buffer_and_set_caps (object->srcpad, GST_BUFFER_OFFSET_NONE, object->frame_size, GST_PAD_CAPS (object->srcpad), &object->out_buf); if (ret != GST_FLOW_OK) return ret; /* do magic calculus */ gst_deinterlace_method_deinterlace_frame (object->method, object); buf = gst_deinterlace2_pop_history (object); timestamp = GST_BUFFER_TIMESTAMP (buf); gst_buffer_unref (buf); GST_BUFFER_TIMESTAMP (object->out_buf) = timestamp; if (object->fields == GST_DEINTERLACE2_ALL) GST_BUFFER_DURATION (object->out_buf) = object->field_duration; else GST_BUFFER_DURATION (object->out_buf) = 2 * object->field_duration; ret = gst_pad_push (object->srcpad, object->out_buf); object->out_buf = NULL; if (ret != GST_FLOW_OK) return ret; } /* no calculation done: remove excess field */ else if (object->field_history[cur_field_idx].flags == PICTURE_INTERLACED_TOP && object->fields == GST_DEINTERLACE2_BF) { GST_DEBUG ("Removing unused top field"); buf = gst_deinterlace2_pop_history (object); gst_buffer_unref (buf); } cur_field_idx = object->history_count - fields_required; if (object->history_count < fields_required) break; /* deinterlace bottom_field */ if ((object->field_history[cur_field_idx].flags == PICTURE_INTERLACED_BOTTOM && object->fields == GST_DEINTERLACE2_BF) || object->fields == GST_DEINTERLACE2_ALL) { GST_DEBUG ("deinterlacing bottom field"); /* create new buffer */ ret = gst_pad_alloc_buffer_and_set_caps (object->srcpad, GST_BUFFER_OFFSET_NONE, object->frame_size, GST_PAD_CAPS (object->srcpad), &object->out_buf); if (ret != GST_FLOW_OK) return ret; /* do magic calculus */ gst_deinterlace_method_deinterlace_frame (object->method, object); buf = gst_deinterlace2_pop_history (object); timestamp = GST_BUFFER_TIMESTAMP (buf); gst_buffer_unref (buf); GST_BUFFER_TIMESTAMP (object->out_buf) = timestamp; if (object->fields == GST_DEINTERLACE2_ALL) GST_BUFFER_DURATION (object->out_buf) = object->field_duration; else GST_BUFFER_DURATION (object->out_buf) = 2 * object->field_duration; ret = gst_pad_push (object->srcpad, object->out_buf); object->out_buf = NULL; if (ret != GST_FLOW_OK) return ret; } /* no calculation done: remove excess field */ else if (object->field_history[cur_field_idx].flags == PICTURE_INTERLACED_BOTTOM && object->fields == GST_DEINTERLACE2_TF) { GST_DEBUG ("Removing unused bottom field"); buf = gst_deinterlace2_pop_history (object); gst_buffer_unref (buf); } } GST_DEBUG ("----chain end ----\n\n"); return ret; } static gboolean gst_deinterlace2_setcaps (GstPad * pad, GstCaps * caps) { gboolean res = TRUE; GstDeinterlace2 *object = GST_DEINTERLACE2 (gst_pad_get_parent (pad)); GstPad *otherpad; GstStructure *structure; GstVideoFormat fmt; guint32 fourcc; GstCaps *othercaps; otherpad = (pad == object->srcpad) ? object->sinkpad : object->srcpad; structure = gst_caps_get_structure (caps, 0); res = gst_structure_get_int (structure, "width", &object->frame_width); res &= gst_structure_get_int (structure, "height", &object->frame_height); res &= gst_structure_get_fraction (structure, "framerate", &object->frame_rate_n, &object->frame_rate_d); res &= gst_structure_get_fourcc (structure, "format", &fourcc); /* TODO: get interlaced, field_layout, field_order */ if (!res) goto invalid_caps; if (object->fields == GST_DEINTERLACE2_ALL) { gint fps_n = object->frame_rate_n, fps_d = object->frame_rate_d; othercaps = gst_caps_copy (caps); if (otherpad == object->srcpad) fps_n *= 2; else fps_d *= 2; gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL); } else { othercaps = gst_caps_ref (caps); } if (!gst_pad_set_caps (otherpad, othercaps)) goto caps_not_accepted; gst_caps_unref (othercaps); /* TODO: introduce object->field_stride */ object->field_height = object->frame_height / 2; fmt = gst_video_format_from_fourcc (fourcc); /* TODO: only true if fields are subbuffers of interlaced frames, change when the buffer-fields concept has landed */ object->field_stride = gst_video_format_get_row_stride (fmt, 0, object->frame_width) * 2; object->output_stride = gst_video_format_get_row_stride (fmt, 0, object->frame_width); /* in bytes */ object->line_length = gst_video_format_get_row_stride (fmt, 0, object->frame_width); object->frame_size = gst_video_format_get_size (fmt, object->frame_width, object->frame_height); if (object->fields == GST_DEINTERLACE2_ALL && otherpad == object->srcpad) object->field_duration = gst_util_uint64_scale (GST_SECOND, object->frame_rate_d, object->frame_rate_n); else object->field_duration = gst_util_uint64_scale (GST_SECOND, object->frame_rate_d, 2 * object->frame_rate_n); GST_DEBUG_OBJECT (object, "Set caps: %" GST_PTR_FORMAT, caps); done: gst_object_unref (object); return res; invalid_caps: res = FALSE; GST_ERROR_OBJECT (object, "Invalid caps: %" GST_PTR_FORMAT, caps); goto done; caps_not_accepted: res = FALSE; GST_ERROR_OBJECT (object, "Caps not accepted: %" GST_PTR_FORMAT, othercaps); gst_caps_unref (othercaps); goto done; } static gboolean gst_deinterlace2_sink_event (GstPad * pad, GstEvent * event) { gboolean res = TRUE; GstDeinterlace2 *object = GST_DEINTERLACE2 (gst_pad_get_parent (pad)); GST_LOG_OBJECT (pad, "received %s event", GST_EVENT_TYPE_NAME (event)); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_STOP: case GST_EVENT_EOS: case GST_EVENT_NEWSEGMENT: gst_deinterlace2_reset_history (object); /* fall through */ default: res = gst_pad_event_default (pad, event); break; } gst_object_unref (object); return res; } static GstStateChangeReturn gst_deinterlace2_change_state (GstElement * element, GstStateChange transition) { GstStateChangeReturn ret; GstDeinterlace2 *object = GST_DEINTERLACE2 (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (ret != GST_STATE_CHANGE_SUCCESS) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: gst_deinterlace2_reset (object); break; case GST_STATE_CHANGE_READY_TO_NULL: default: break; } return ret; } static gboolean gst_deinterlace2_src_event (GstPad * pad, GstEvent * event) { GstDeinterlace2 *object = GST_DEINTERLACE2 (gst_pad_get_parent (pad)); gboolean res; GST_DEBUG_OBJECT (pad, "received %s event", GST_EVENT_TYPE_NAME (event)); switch (GST_EVENT_TYPE (event)) { default: res = gst_pad_event_default (pad, event); break; } gst_object_unref (object); return res; } static gboolean gst_deinterlace2_src_query (GstPad * pad, GstQuery * query) { GstDeinterlace2 *object = GST_DEINTERLACE2 (gst_pad_get_parent (pad)); gboolean res = FALSE; GST_LOG_OBJECT (object, "%s query", GST_QUERY_TYPE_NAME (query)); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_LATENCY: { GstClockTime min, max; gboolean live; GstPad *peer; if ((peer = gst_pad_get_peer (object->sinkpad))) { if ((res = gst_pad_query (peer, query))) { GstClockTime latency; gint fields_required = 0; gint method_latency = 0; if (object->method) { fields_required = gst_deinterlace_method_get_fields_required (object->method); method_latency = gst_deinterlace_method_get_latency (object->method); } gst_query_parse_latency (query, &live, &min, &max); GST_DEBUG ("Peer latency: min %" GST_TIME_FORMAT " max %" GST_TIME_FORMAT, GST_TIME_ARGS (min), GST_TIME_ARGS (max)); /* add our own latency */ latency = (fields_required + method_latency) * object->field_duration; GST_DEBUG ("Our latency: min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT, GST_TIME_ARGS (latency), GST_TIME_ARGS (latency)); min += latency; if (max != GST_CLOCK_TIME_NONE) max += latency; else max = latency; GST_DEBUG ("Calculated total latency : min %" GST_TIME_FORMAT " max %" GST_TIME_FORMAT, GST_TIME_ARGS (min), GST_TIME_ARGS (max)); gst_query_set_latency (query, live, min, max); } gst_object_unref (peer); } break; } default: res = gst_pad_query_default (pad, query); break; } gst_object_unref (object); return res; } static const GstQueryType * gst_deinterlace2_src_query_types (GstPad * pad) { static const GstQueryType types[] = { GST_QUERY_LATENCY, GST_QUERY_NONE }; return types; } static gboolean plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (deinterlace2_debug, "deinterlace2", 0, "Deinterlacer"); oil_init (); if (!gst_element_register (plugin, "deinterlace2", GST_RANK_NONE, GST_TYPE_DEINTERLACE2)) { return FALSE; } return TRUE; } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "deinterlace2", "Deinterlacer", plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);