2 * Copyright (C) 2009,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * SECTION:element-shapewipe
23 * The shapewipe element provides custom transitions on video streams
24 * based on a grayscale bitmap. The state of the transition can be
25 * controlled by the position property and an optional blended border
26 * can be added by the border property.
28 * Transition bitmaps can be downloaded from the
29 * <ulink url="http://cinelerra.org/transitions.php">Cinelerra transition</ulink>
33 * <title>Example launch line</title>
35 * gst-launch -v videotestsrc ! video/x-raw,format=(string)AYUV,width=640,height=480 ! shapewipe position=0.5 name=shape ! videomixer name=mixer ! videoconvert ! autovideosink filesrc location=mask.png ! typefind ! decodebin2 ! videoconvert ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw,format=(string)AYUV,width=640,height=480 ! queue ! mixer.
36 * ]| This pipeline adds the transition from mask.png with position 0.5 to an SMPTE test screen and snow.
49 #include "gstshapewipe.h"
51 static void gst_shape_wipe_finalize (GObject * object);
52 static void gst_shape_wipe_get_property (GObject * object, guint prop_id,
53 GValue * value, GParamSpec * pspec);
54 static void gst_shape_wipe_set_property (GObject * object, guint prop_id,
55 const GValue * value, GParamSpec * pspec);
57 static void gst_shape_wipe_reset (GstShapeWipe * self);
58 static void gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion,
59 GstClockTimeDiff diff, GstClockTime time);
60 static void gst_shape_wipe_reset_qos (GstShapeWipe * self);
61 static void gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion,
64 static GstStateChangeReturn gst_shape_wipe_change_state (GstElement * element,
65 GstStateChange transition);
67 static GstFlowReturn gst_shape_wipe_video_sink_chain (GstPad * pad,
68 GstObject * parent, GstBuffer * buffer);
69 static gboolean gst_shape_wipe_video_sink_event (GstPad * pad,
70 GstObject * parent, GstEvent * event);
71 static gboolean gst_shape_wipe_video_sink_setcaps (GstShapeWipe * self,
73 static GstCaps *gst_shape_wipe_video_sink_getcaps (GstPad * pad,
75 static gboolean gst_shape_wipe_video_sink_query (GstPad * pad,
76 GstObject * parent, GstQuery * query);
77 static GstFlowReturn gst_shape_wipe_mask_sink_chain (GstPad * pad,
78 GstObject * parent, GstBuffer * buffer);
79 static gboolean gst_shape_wipe_mask_sink_event (GstPad * pad,
80 GstObject * parent, GstEvent * event);
81 static gboolean gst_shape_wipe_mask_sink_setcaps (GstShapeWipe * self,
83 static GstCaps *gst_shape_wipe_mask_sink_getcaps (GstPad * pad,
85 static gboolean gst_shape_wipe_mask_sink_query (GstPad * pad,
86 GstObject * parent, GstQuery * query);
87 static gboolean gst_shape_wipe_src_event (GstPad * pad, GstObject * parent,
89 static GstCaps *gst_shape_wipe_src_getcaps (GstPad * pad, GstCaps * filter);
90 static gboolean gst_shape_wipe_src_query (GstPad * pad, GstObject * parent,
100 #define DEFAULT_POSITION 0.0
101 #define DEFAULT_BORDER 0.0
103 static GstStaticPadTemplate video_sink_pad_template =
104 GST_STATIC_PAD_TEMPLATE ("video_sink",
107 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, ARGB, BGRA, ABGR, RGBA }")));
109 static GstStaticPadTemplate mask_sink_pad_template =
110 GST_STATIC_PAD_TEMPLATE ("mask_sink",
113 GST_STATIC_CAPS ("video/x-raw, "
114 "format = (string) GRAY8, "
115 "width = " GST_VIDEO_SIZE_RANGE ", "
116 "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1 ; "
117 "video/x-raw, " "format = (string) " GST_VIDEO_NE (GRAY16) ", "
118 "width = " GST_VIDEO_SIZE_RANGE ", "
119 "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1"));
121 static GstStaticPadTemplate src_pad_template =
122 GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
123 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, ARGB, BGRA, ABGR, RGBA }")));
125 GST_DEBUG_CATEGORY_STATIC (gst_shape_wipe_debug);
126 #define GST_CAT_DEFAULT gst_shape_wipe_debug
128 #define gst_shape_wipe_parent_class parent_class
129 G_DEFINE_TYPE (GstShapeWipe, gst_shape_wipe, GST_TYPE_ELEMENT);
132 gst_shape_wipe_class_init (GstShapeWipeClass * klass)
134 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
135 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
137 gobject_class->finalize = gst_shape_wipe_finalize;
138 gobject_class->set_property = gst_shape_wipe_set_property;
139 gobject_class->get_property = gst_shape_wipe_get_property;
141 g_object_class_install_property (gobject_class, PROP_POSITION,
142 g_param_spec_float ("position", "Position", "Position of the mask",
143 0.0, 1.0, DEFAULT_POSITION,
144 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
145 g_object_class_install_property (gobject_class, PROP_BORDER,
146 g_param_spec_float ("border", "Border", "Border of the mask",
147 0.0, 1.0, DEFAULT_BORDER,
148 G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
150 gstelement_class->change_state =
151 GST_DEBUG_FUNCPTR (gst_shape_wipe_change_state);
153 gst_element_class_set_details_simple (gstelement_class,
154 "Shape Wipe transition filter",
155 "Filter/Editor/Video",
156 "Adds a shape wipe transition to a video stream",
157 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
159 gst_element_class_add_pad_template (gstelement_class,
160 gst_static_pad_template_get (&video_sink_pad_template));
161 gst_element_class_add_pad_template (gstelement_class,
162 gst_static_pad_template_get (&mask_sink_pad_template));
163 gst_element_class_add_pad_template (gstelement_class,
164 gst_static_pad_template_get (&src_pad_template));
168 gst_shape_wipe_init (GstShapeWipe * self)
170 self->video_sinkpad =
171 gst_pad_new_from_static_template (&video_sink_pad_template, "video_sink");
172 gst_pad_set_chain_function (self->video_sinkpad,
173 GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_chain));
174 gst_pad_set_event_function (self->video_sinkpad,
175 GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_event));
176 gst_pad_set_query_function (self->video_sinkpad,
177 GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_query));
178 gst_element_add_pad (GST_ELEMENT (self), self->video_sinkpad);
181 gst_pad_new_from_static_template (&mask_sink_pad_template, "mask_sink");
182 gst_pad_set_chain_function (self->mask_sinkpad,
183 GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_chain));
184 gst_pad_set_event_function (self->mask_sinkpad,
185 GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_event));
186 gst_pad_set_query_function (self->mask_sinkpad,
187 GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_query));
188 gst_element_add_pad (GST_ELEMENT (self), self->mask_sinkpad);
190 self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src");
191 gst_pad_set_event_function (self->srcpad,
192 GST_DEBUG_FUNCPTR (gst_shape_wipe_src_event));
193 gst_pad_set_query_function (self->srcpad,
194 GST_DEBUG_FUNCPTR (gst_shape_wipe_src_query));
195 gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
197 g_mutex_init (&self->mask_mutex);
198 g_cond_init (&self->mask_cond);
200 gst_shape_wipe_reset (self);
204 gst_shape_wipe_get_property (GObject * object, guint prop_id,
205 GValue * value, GParamSpec * pspec)
207 GstShapeWipe *self = GST_SHAPE_WIPE (object);
211 g_value_set_float (value, self->mask_position);
214 g_value_set_float (value, self->mask_border);
217 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
223 gst_shape_wipe_set_property (GObject * object, guint prop_id,
224 const GValue * value, GParamSpec * pspec)
226 GstShapeWipe *self = GST_SHAPE_WIPE (object);
230 gfloat f = g_value_get_float (value);
232 GST_LOG_OBJECT (self, "Setting mask position: %f", f);
233 self->mask_position = f;
237 gfloat f = g_value_get_float (value);
239 GST_LOG_OBJECT (self, "Setting mask border: %f", f);
240 self->mask_border = f;
244 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
250 gst_shape_wipe_finalize (GObject * object)
252 GstShapeWipe *self = GST_SHAPE_WIPE (object);
254 gst_shape_wipe_reset (self);
256 g_cond_clear (&self->mask_cond);
257 g_mutex_clear (&self->mask_mutex);
259 G_OBJECT_CLASS (parent_class)->finalize (object);
263 gst_shape_wipe_reset (GstShapeWipe * self)
265 GST_DEBUG_OBJECT (self, "Resetting internal state");
268 gst_buffer_unref (self->mask);
271 g_mutex_lock (&self->mask_mutex);
272 g_cond_signal (&self->mask_cond);
273 g_mutex_unlock (&self->mask_mutex);
275 gst_video_info_init (&self->info);
278 gst_segment_init (&self->segment, GST_FORMAT_TIME);
280 gst_shape_wipe_reset_qos (self);
281 self->frame_duration = 0;
285 gst_shape_wipe_video_sink_setcaps (GstShapeWipe * self, GstCaps * caps)
290 GST_DEBUG_OBJECT (self, "Setting caps: %" GST_PTR_FORMAT, caps);
292 if (!gst_video_info_from_caps (&info, caps))
295 if (self->info.width != info.width || self->info.height != info.height) {
296 g_mutex_lock (&self->mask_mutex);
299 gst_buffer_unref (self->mask);
301 g_mutex_unlock (&self->mask_mutex);
306 self->frame_duration =
307 gst_util_uint64_scale (GST_SECOND, info.fps_d, info.fps_n);
309 self->frame_duration = 0;
311 ret = gst_pad_set_caps (self->srcpad, caps);
318 GST_ERROR_OBJECT (self, "Invalid caps");
324 gst_shape_wipe_video_sink_getcaps (GstPad * pad, GstCaps * filter)
326 GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
329 if (gst_pad_has_current_caps (pad))
330 return gst_pad_get_current_caps (pad);
332 tmp = gst_pad_peer_query_caps (self->srcpad, NULL);
334 ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad));
335 gst_caps_unref (tmp);
337 ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
340 GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret);
342 if (gst_caps_is_empty (ret))
345 tmp = gst_pad_peer_query_caps (pad, NULL);
347 GST_LOG_OBJECT (pad, "peerpad accepted caps: %" GST_PTR_FORMAT, tmp);
349 GstCaps *intersection;
351 intersection = gst_caps_intersect (tmp, ret);
352 gst_caps_unref (tmp);
353 gst_caps_unref (ret);
357 GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, tmp);
359 if (gst_caps_is_empty (ret))
362 if (self->info.height && self->info.width) {
365 n = gst_caps_get_size (ret);
366 for (i = 0; i < n; i++) {
367 GstStructure *s = gst_caps_get_structure (ret, i);
369 gst_structure_set (s, "width", G_TYPE_INT, self->info.width, "height",
370 G_TYPE_INT, self->info.height, NULL);
374 tmp = gst_pad_peer_query_caps (self->mask_sinkpad, NULL);
376 GST_LOG_OBJECT (pad, "mask accepted caps: %" GST_PTR_FORMAT, tmp);
378 GstCaps *intersection, *tmp2;
381 tmp = gst_caps_make_writable (tmp);
383 tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
385 intersection = gst_caps_intersect (tmp, tmp2);
386 gst_caps_unref (tmp);
387 gst_caps_unref (tmp2);
390 n = gst_caps_get_size (tmp);
392 for (i = 0; i < n; i++) {
393 GstStructure *s = gst_caps_get_structure (tmp, i);
395 gst_structure_remove_fields (s, "format", "framerate", NULL);
396 gst_structure_set_name (s, "video/x-raw");
399 intersection = gst_caps_intersect (tmp, ret);
400 gst_caps_unref (tmp);
401 gst_caps_unref (ret);
406 gst_object_unref (self);
408 GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
414 gst_shape_wipe_mask_sink_setcaps (GstShapeWipe * self, GstCaps * caps)
418 gint width, height, bpp;
420 GST_DEBUG_OBJECT (self, "Setting caps: %" GST_PTR_FORMAT, caps);
422 s = gst_caps_get_structure (caps, 0);
424 if (!gst_structure_get_int (s, "width", &width) ||
425 !gst_structure_get_int (s, "height", &height) ||
426 !gst_structure_get_int (s, "bpp", &bpp)) {
431 if ((self->info.width != width || self->info.height != height) &&
432 self->info.width > 0 && self->info.height > 0) {
433 GST_ERROR_OBJECT (self, "Mask caps must have the same width/height "
434 "as the video caps");
438 self->info.width = width;
439 self->info.height = height;
442 self->mask_bpp = bpp;
449 gst_shape_wipe_mask_sink_getcaps (GstPad * pad, GstCaps * filter)
451 GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
455 if (gst_pad_has_current_caps (pad))
456 return gst_pad_get_current_caps (pad);
458 tmp = gst_pad_peer_query_caps (self->video_sinkpad, NULL);
461 gst_caps_intersect (tmp,
462 gst_pad_get_pad_template_caps (self->video_sinkpad));
463 gst_caps_unref (tmp);
465 ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
468 GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
470 if (gst_caps_is_empty (ret))
473 tmp = gst_pad_peer_query_caps (self->srcpad, NULL);
474 GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret);
477 GstCaps *intersection;
479 intersection = gst_caps_intersect (ret, tmp);
480 gst_caps_unref (ret);
481 gst_caps_unref (tmp);
485 GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
487 if (gst_caps_is_empty (ret))
490 n = gst_caps_get_size (ret);
491 tmp = gst_caps_new_empty ();
492 for (i = 0; i < n; i++) {
493 GstStructure *s = gst_caps_get_structure (ret, i);
496 gst_structure_set_name (s, "video/x-raw");
497 gst_structure_remove_fields (s, "format", "framerate", NULL);
499 if (self->info.width && self->info.height)
500 gst_structure_set (s, "width", G_TYPE_INT, self->info.width, "height",
501 G_TYPE_INT, self->info.height, NULL);
503 gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
505 t = gst_structure_copy (s);
507 gst_structure_set (s, "format", G_TYPE_STRING, GST_VIDEO_NE (GRAY16), NULL);
508 gst_structure_set (t, "format", G_TYPE_STRING, "GRAY8", NULL);
510 gst_caps_append_structure (tmp, t);
512 gst_caps_append (ret, tmp);
514 tmp = gst_pad_peer_query_caps (pad, NULL);
515 GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, tmp);
518 GstCaps *intersection;
520 intersection = gst_caps_intersect (tmp, ret);
521 gst_caps_unref (tmp);
522 gst_caps_unref (ret);
527 gst_object_unref (self);
529 GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
535 gst_shape_wipe_src_getcaps (GstPad * pad, GstCaps * filter)
537 GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
540 if (gst_pad_has_current_caps (pad))
541 return gst_pad_get_current_caps (pad);
542 else if (gst_pad_has_current_caps (self->video_sinkpad))
543 return gst_pad_get_current_caps (self->video_sinkpad);
545 tmp = gst_pad_peer_query_caps (self->video_sinkpad, NULL);
548 gst_caps_intersect (tmp,
549 gst_pad_get_pad_template_caps (self->video_sinkpad));
550 gst_caps_unref (tmp);
552 ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
555 GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
557 if (gst_caps_is_empty (ret))
560 tmp = gst_pad_peer_query_caps (pad, NULL);
561 GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, ret);
563 GstCaps *intersection;
565 intersection = gst_caps_intersect (tmp, ret);
566 gst_caps_unref (tmp);
567 gst_caps_unref (ret);
571 GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
573 if (gst_caps_is_empty (ret))
576 if (self->info.height && self->info.width) {
579 n = gst_caps_get_size (ret);
580 for (i = 0; i < n; i++) {
581 GstStructure *s = gst_caps_get_structure (ret, i);
583 gst_structure_set (s, "width", G_TYPE_INT, self->info.width, "height",
584 G_TYPE_INT, self->info.height, NULL);
588 tmp = gst_pad_peer_query_caps (self->mask_sinkpad, NULL);
589 GST_LOG_OBJECT (pad, "mask sink accepted caps: %" GST_PTR_FORMAT, ret);
591 GstCaps *intersection, *tmp2;
594 tmp = gst_caps_make_writable (tmp);
595 tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
597 intersection = gst_caps_intersect (tmp, tmp2);
598 gst_caps_unref (tmp);
599 gst_caps_unref (tmp2);
602 n = gst_caps_get_size (tmp);
604 for (i = 0; i < n; i++) {
605 GstStructure *s = gst_caps_get_structure (tmp, i);
607 gst_structure_remove_fields (s, "format", "framerate", NULL);
608 gst_structure_set_name (s, "video/x-raw");
611 intersection = gst_caps_intersect (tmp, ret);
612 gst_caps_unref (tmp);
613 gst_caps_unref (ret);
619 gst_object_unref (self);
621 GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
627 gst_shape_wipe_video_sink_query (GstPad * pad, GstObject * parent,
630 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
633 GST_LOG_OBJECT (pad, "Handling query of type '%s'",
634 gst_query_type_get_name (GST_QUERY_TYPE (query)));
636 switch (GST_QUERY_TYPE (query)) {
639 GstCaps *filter, *caps;
641 gst_query_parse_caps (query, &filter);
642 caps = gst_shape_wipe_video_sink_getcaps (pad, filter);
643 gst_query_set_caps_result (query, caps);
644 gst_caps_unref (caps);
649 ret = gst_pad_peer_query (self->srcpad, query);
657 gst_shape_wipe_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
659 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
662 GST_LOG_OBJECT (pad, "Handling query of type '%s'",
663 gst_query_type_get_name (GST_QUERY_TYPE (query)));
665 switch (GST_QUERY_TYPE (query)) {
668 GstCaps *filter, *caps;
670 gst_query_parse_caps (query, &filter);
671 caps = gst_shape_wipe_src_getcaps (pad, filter);
672 gst_query_set_caps_result (query, caps);
673 gst_caps_unref (caps);
678 ret = gst_pad_peer_query (self->video_sinkpad, query);
686 gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion,
687 GstClockTimeDiff diff, GstClockTime timestamp)
689 GST_OBJECT_LOCK (self);
690 self->proportion = proportion;
691 if (G_LIKELY (timestamp != GST_CLOCK_TIME_NONE)) {
692 if (G_UNLIKELY (diff > 0))
693 self->earliest_time = timestamp + 2 * diff + self->frame_duration;
695 self->earliest_time = timestamp + diff;
697 self->earliest_time = GST_CLOCK_TIME_NONE;
699 GST_OBJECT_UNLOCK (self);
703 gst_shape_wipe_reset_qos (GstShapeWipe * self)
705 gst_shape_wipe_update_qos (self, 0.5, 0, GST_CLOCK_TIME_NONE);
709 gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion,
712 GST_OBJECT_LOCK (self);
713 *proportion = self->proportion;
714 *time = self->earliest_time;
715 GST_OBJECT_UNLOCK (self);
718 /* Perform qos calculations before processing the next frame. Returns TRUE if
719 * the frame should be processed, FALSE if the frame can be dropped entirely */
721 gst_shape_wipe_do_qos (GstShapeWipe * self, GstClockTime timestamp)
723 GstClockTime qostime, earliest_time;
726 /* no timestamp, can't do QoS => process frame */
727 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (timestamp))) {
728 GST_LOG_OBJECT (self, "invalid timestamp, can't do QoS, process frame");
732 /* get latest QoS observation values */
733 gst_shape_wipe_read_qos (self, &proportion, &earliest_time);
735 /* skip qos if we have no observation (yet) => process frame */
736 if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (earliest_time))) {
737 GST_LOG_OBJECT (self, "no observation yet, process frame");
741 /* qos is done on running time */
742 qostime = gst_segment_to_running_time (&self->segment, GST_FORMAT_TIME,
745 /* see how our next timestamp relates to the latest qos timestamp */
746 GST_LOG_OBJECT (self, "qostime %" GST_TIME_FORMAT ", earliest %"
747 GST_TIME_FORMAT, GST_TIME_ARGS (qostime), GST_TIME_ARGS (earliest_time));
749 if (qostime != GST_CLOCK_TIME_NONE && qostime <= earliest_time) {
750 GST_DEBUG_OBJECT (self, "we are late, drop frame");
754 GST_LOG_OBJECT (self, "process frame");
758 #define CREATE_ARGB_FUNCTIONS(depth, name, shift, a, r, g, b) \
760 gst_shape_wipe_blend_##name##_##depth (GstShapeWipe * self, GstVideoFrame * inframe, \
761 GstVideoFrame * maskframe, GstVideoFrame * outframe) \
763 const guint##depth *mask = (const guint##depth *) GST_VIDEO_FRAME_PLANE_DATA (maskframe, 0); \
764 const guint8 *input = (const guint8 *) GST_VIDEO_FRAME_PLANE_DATA (inframe, 0); \
765 guint8 *output = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (outframe, 0); \
767 guint mask_increment = ((depth == 16) ? GST_ROUND_UP_2 (self->info.width) : \
768 GST_ROUND_UP_4 (self->info.width)) - self->info.width; \
769 gfloat position = self->mask_position; \
770 gfloat low = position - (self->mask_border / 2.0f); \
771 gfloat high = position + (self->mask_border / 2.0f); \
772 guint32 low_i, high_i, round_i; \
773 gint width = self->info.width, height = self->info.height; \
785 low_i = low * 65536; \
786 high_i = high * 65536; \
787 round_i = (high_i - low_i) >> 1; \
789 for (i = 0; i < height; i++) { \
790 for (j = 0; j < width; j++) { \
791 guint32 in = *mask << shift; \
794 output[a] = 0x00; /* A */ \
795 output[r] = input[r]; /* R */ \
796 output[g] = input[g]; /* G */ \
797 output[b] = input[b]; /* B */ \
798 } else if (in >= high_i) { \
799 output[a] = input[a]; /* A */ \
800 output[r] = input[r]; /* R */ \
801 output[g] = input[g]; /* G */ \
802 output[b] = input[b]; /* B */ \
805 /* Note: This will never overflow or be larger than 255! */ \
806 val = (((in - low_i) << 16) + round_i) / (high_i - low_i); \
807 val = (val * input[a] + 32768) >> 16; \
809 output[a] = val; /* A */ \
810 output[r] = input[r]; /* R */ \
811 output[g] = input[g]; /* G */ \
812 output[b] = input[b]; /* B */ \
819 mask += mask_increment; \
823 CREATE_ARGB_FUNCTIONS (16, argb, 0, 0, 1, 2, 3);
824 CREATE_ARGB_FUNCTIONS (8, argb, 8, 0, 1, 2, 3);
826 CREATE_ARGB_FUNCTIONS (16, bgra, 0, 3, 2, 1, 0);
827 CREATE_ARGB_FUNCTIONS (8, bgra, 8, 3, 2, 1, 0);
830 gst_shape_wipe_video_sink_chain (GstPad * pad, GstObject * parent,
833 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
834 GstFlowReturn ret = GST_FLOW_OK;
835 GstBuffer *mask = NULL, *outbuf = NULL;
836 GstClockTime timestamp;
837 gboolean new_outbuf = FALSE;
838 GstVideoFrame inframe, outframe, maskframe;
840 if (G_UNLIKELY (GST_VIDEO_INFO_FORMAT (&self->info) ==
841 GST_VIDEO_FORMAT_UNKNOWN))
844 timestamp = GST_BUFFER_TIMESTAMP (buffer);
846 gst_segment_to_stream_time (&self->segment, GST_FORMAT_TIME, timestamp);
848 if (GST_CLOCK_TIME_IS_VALID (timestamp))
849 gst_object_sync_values (GST_OBJECT (self), timestamp);
851 GST_LOG_OBJECT (self,
852 "Blending buffer with timestamp %" GST_TIME_FORMAT " at position %f",
853 GST_TIME_ARGS (timestamp), self->mask_position);
855 g_mutex_lock (&self->mask_mutex);
860 g_cond_wait (&self->mask_cond, &self->mask_mutex);
862 if (self->mask == NULL || self->shutdown) {
865 mask = gst_buffer_ref (self->mask);
867 g_mutex_unlock (&self->mask_mutex);
869 if (!gst_shape_wipe_do_qos (self, GST_BUFFER_TIMESTAMP (buffer)))
872 /* Try to blend inplace, if it's not possible
873 * get a new buffer from downstream. */
874 if (!gst_buffer_is_writable (buffer)) {
875 outbuf = gst_buffer_new_allocate (NULL, gst_buffer_get_size (buffer), NULL);
876 gst_buffer_copy_into (outbuf, buffer, GST_BUFFER_COPY_METADATA, 0, -1);
882 gst_video_frame_map (&inframe, &self->info, buffer, GST_MAP_READ);
883 gst_video_frame_map (&maskframe, &self->info, mask, GST_MAP_READ);
884 gst_video_frame_map (&outframe, &self->info, outbuf, GST_MAP_WRITE);
886 switch (GST_VIDEO_INFO_FORMAT (&self->info)) {
887 case GST_VIDEO_FORMAT_AYUV:
888 case GST_VIDEO_FORMAT_ARGB:
889 case GST_VIDEO_FORMAT_ABGR:
890 if (self->mask_bpp == 16)
891 gst_shape_wipe_blend_argb_16 (self, &inframe, &maskframe, &outframe);
893 gst_shape_wipe_blend_argb_8 (self, &inframe, &maskframe, &outframe);
895 case GST_VIDEO_FORMAT_BGRA:
896 case GST_VIDEO_FORMAT_RGBA:
897 if (self->mask_bpp == 16)
898 gst_shape_wipe_blend_bgra_16 (self, &inframe, &maskframe, &outframe);
900 gst_shape_wipe_blend_bgra_8 (self, &inframe, &maskframe, &outframe);
903 g_assert_not_reached ();
907 gst_video_frame_unmap (&outframe);
908 gst_video_frame_unmap (&maskframe);
909 gst_video_frame_unmap (&inframe);
911 gst_buffer_unref (mask);
913 gst_buffer_unref (buffer);
915 ret = gst_pad_push (self->srcpad, outbuf);
916 if (G_UNLIKELY (ret != GST_FLOW_OK))
924 GST_ERROR_OBJECT (self, "No valid caps yet");
925 gst_buffer_unref (buffer);
926 return GST_FLOW_NOT_NEGOTIATED;
930 GST_DEBUG_OBJECT (self, "Shutting down");
931 gst_buffer_unref (buffer);
932 return GST_FLOW_FLUSHING;
936 GST_DEBUG_OBJECT (self, "Dropping buffer because of QoS");
937 gst_buffer_unref (buffer);
938 gst_buffer_unref (mask);
943 GST_ERROR_OBJECT (self, "Pushing buffer downstream failed: %s",
944 gst_flow_get_name (ret));
950 gst_shape_wipe_mask_sink_chain (GstPad * pad, GstObject * parent,
953 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
954 GstFlowReturn ret = GST_FLOW_OK;
956 g_mutex_lock (&self->mask_mutex);
957 GST_DEBUG_OBJECT (self, "Setting new mask buffer: %" GST_PTR_FORMAT, buffer);
959 gst_buffer_replace (&self->mask, buffer);
960 g_cond_signal (&self->mask_cond);
961 g_mutex_unlock (&self->mask_mutex);
963 gst_buffer_unref (buffer);
968 static GstStateChangeReturn
969 gst_shape_wipe_change_state (GstElement * element, GstStateChange transition)
971 GstShapeWipe *self = GST_SHAPE_WIPE (element);
972 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
974 switch (transition) {
975 case GST_STATE_CHANGE_READY_TO_PAUSED:
976 self->shutdown = FALSE;
978 case GST_STATE_CHANGE_PAUSED_TO_READY:
979 /* Unblock video sink chain function */
980 g_mutex_lock (&self->mask_mutex);
981 self->shutdown = TRUE;
982 g_cond_signal (&self->mask_cond);
983 g_mutex_unlock (&self->mask_mutex);
989 if (GST_ELEMENT_CLASS (parent_class)->change_state)
990 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
992 switch (transition) {
993 case GST_STATE_CHANGE_PAUSED_TO_READY:
994 gst_shape_wipe_reset (self);
1004 gst_shape_wipe_video_sink_event (GstPad * pad, GstObject * parent,
1007 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
1010 GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
1012 switch (GST_EVENT_TYPE (event)) {
1013 case GST_EVENT_CAPS:
1017 gst_event_parse_caps (event, &caps);
1018 ret = gst_shape_wipe_video_sink_setcaps (self, caps);
1019 gst_event_unref (event);
1022 case GST_EVENT_SEGMENT:
1026 gst_event_copy_segment (event, &seg);
1027 if (seg.format == GST_FORMAT_TIME) {
1028 GST_DEBUG_OBJECT (pad,
1029 "Got SEGMENT event in GST_FORMAT_TIME %" GST_PTR_FORMAT, &seg);
1030 self->segment = seg;
1032 gst_segment_init (&self->segment, GST_FORMAT_TIME);
1036 case GST_EVENT_FLUSH_STOP:
1037 gst_shape_wipe_reset_qos (self);
1040 ret = gst_pad_push_event (self->srcpad, event);
1048 gst_shape_wipe_mask_sink_event (GstPad * pad, GstObject * parent,
1051 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
1053 GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
1055 switch (GST_EVENT_TYPE (event)) {
1056 case GST_EVENT_CAPS:
1060 gst_event_parse_caps (event, &caps);
1061 gst_shape_wipe_mask_sink_setcaps (self, caps);
1064 case GST_EVENT_FLUSH_STOP:
1065 g_mutex_lock (&self->mask_mutex);
1066 gst_buffer_replace (&self->mask, NULL);
1067 g_mutex_unlock (&self->mask_mutex);
1073 /* Dropping all events here */
1074 gst_event_unref (event);
1080 gst_shape_wipe_mask_sink_query (GstPad * pad, GstObject * parent,
1085 GST_LOG_OBJECT (pad, "Handling query of type '%s'",
1086 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1088 switch (GST_QUERY_TYPE (query)) {
1089 case GST_QUERY_CAPS:
1091 GstCaps *filter, *caps;
1093 gst_query_parse_caps (query, &filter);
1094 caps = gst_shape_wipe_mask_sink_getcaps (pad, filter);
1095 gst_query_set_caps_result (query, caps);
1096 gst_caps_unref (caps);
1101 ret = gst_pad_query_default (pad, parent, query);
1110 gst_shape_wipe_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
1112 GstShapeWipe *self = GST_SHAPE_WIPE (parent);
1115 GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
1117 switch (GST_EVENT_TYPE (event)) {
1118 case GST_EVENT_QOS:{
1120 GstClockTimeDiff diff;
1121 GstClockTime timestamp;
1124 gst_event_parse_qos (event, &type, &proportion, &diff, ×tamp);
1126 gst_shape_wipe_update_qos (self, proportion, diff, timestamp);
1130 ret = gst_pad_push_event (self->video_sinkpad, event);
1138 plugin_init (GstPlugin * plugin)
1140 GST_DEBUG_CATEGORY_INIT (gst_shape_wipe_debug, "shapewipe", 0,
1141 "shapewipe element");
1143 if (!gst_element_register (plugin, "shapewipe", GST_RANK_NONE,
1144 GST_TYPE_SHAPE_WIPE))
1150 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1153 "Shape Wipe transition filter",
1154 plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)