diff options
Diffstat (limited to 'gst/shapewipe')
| -rw-r--r-- | gst/shapewipe/Makefile.am | 25 | ||||
| -rw-r--r-- | gst/shapewipe/Makefile.in | 820 | ||||
| -rw-r--r-- | gst/shapewipe/gstshapewipe.c | 1162 | ||||
| -rw-r--r-- | gst/shapewipe/gstshapewipe.h | 81 |
4 files changed, 2088 insertions, 0 deletions
diff --git a/gst/shapewipe/Makefile.am b/gst/shapewipe/Makefile.am new file mode 100644 index 0000000..35cf5df --- /dev/null +++ b/gst/shapewipe/Makefile.am @@ -0,0 +1,25 @@ +plugin_LTLIBRARIES = libgstshapewipe.la + +libgstshapewipe_la_SOURCES = gstshapewipe.c + +libgstshapewipe_la_CFLAGS = $(GIO_CFLAGS) $(GST_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) +libgstshapewipe_la_LIBADD = $(GIO_LIBS) $(GST_LIBS) $(GST_CONTROLLER_LIBS) $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ +libgstshapewipe_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgstshapewipe_la_LIBTOOLFLAGS = --tag=disable-static + +noinst_HEADERS = gstshapewipe.h + + +Android.mk: Makefile.am $(BUILT_SOURCES) + androgenizer \ + -:PROJECT libgstshapewhipe -:SHARED libgstshapewhipe \ + -:TAGS eng debug \ + -:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \ + -:SOURCES $(libgstshapewhipe_la_SOURCES) \ + -:CFLAGS $(DEFS) $(DEFAULT_INCLUDES) $(libgstshapewhipe_la_CFLAGS) \ + -:LDFLAGS $(libgstshapewhipe_la_LDFLAGS) \ + $(libgstshapewhipe_la_LIBADD) \ + -ldl \ + -:PASSTHROUGH LOCAL_ARM_MODE:=arm \ + LOCAL_MODULE_PATH:='$$(TARGET_OUT)/lib/gstreamer-0.10' \ + > $@ diff --git a/gst/shapewipe/Makefile.in b/gst/shapewipe/Makefile.in new file mode 100644 index 0000000..8de2d57 --- /dev/null +++ b/gst/shapewipe/Makefile.in @@ -0,0 +1,820 @@ +# Makefile.in generated by automake 1.11.3 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software +# Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + 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not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/gst/shapewipe/gstshapewipe.c b/gst/shapewipe/gstshapewipe.c new file mode 100644 index 0000000..b8c91b5 --- /dev/null +++ b/gst/shapewipe/gstshapewipe.c @@ -0,0 +1,1162 @@ +/* GStreamer + * Copyright (C) 2009,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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. + */ + +/** + * SECTION:element-shapewipe + * + * The shapewipe element provides custom transitions on video streams + * based on a grayscale bitmap. The state of the transition can be + * controlled by the position property and an optional blended border + * can be added by the border property. + * + * Transition bitmaps can be downloaded from the + * <ulink url="http://cinelerra.org/transitions.php">Cinelerra transition</ulink> + * page. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch -v videotestsrc ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! shapewipe position=0.5 name=shape ! videomixer name=mixer ! ffmpegcolorspace ! autovideosink filesrc location=mask.png ! typefind ! decodebin2 ! ffmpegcolorspace ! videoscale ! queue ! shape.mask_sink videotestsrc pattern=snow ! video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480 ! queue ! mixer. + * ]| This pipeline adds the transition from mask.png with position 0.5 to an SMPTE test screen and snow. + * </refsect2> + */ + + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <string.h> + +#include <gst/gst.h> +#include <gst/controller/gstcontroller.h> +#include <gst/glib-compat-private.h> + +#include "gstshapewipe.h" + +static void gst_shape_wipe_finalize (GObject * object); +static void gst_shape_wipe_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static void gst_shape_wipe_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); + +static void gst_shape_wipe_reset (GstShapeWipe * self); +static void gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion, + GstClockTimeDiff diff, GstClockTime time); +static void gst_shape_wipe_reset_qos (GstShapeWipe * self); +static void gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion, + GstClockTime * time); + +static GstStateChangeReturn gst_shape_wipe_change_state (GstElement * element, + GstStateChange transition); + +static GstFlowReturn gst_shape_wipe_video_sink_chain (GstPad * pad, + GstBuffer * buffer); +static gboolean gst_shape_wipe_video_sink_event (GstPad * pad, + GstEvent * event); +static gboolean gst_shape_wipe_video_sink_setcaps (GstPad * pad, + GstCaps * caps); +static GstCaps *gst_shape_wipe_video_sink_getcaps (GstPad * pad); +static GstFlowReturn gst_shape_wipe_video_sink_bufferalloc (GstPad * pad, + guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf); +static gboolean gst_shape_wipe_video_sink_query (GstPad * pad, + GstQuery * query); +static GstFlowReturn gst_shape_wipe_mask_sink_chain (GstPad * pad, + GstBuffer * buffer); +static gboolean gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event); +static gboolean gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps); +static GstCaps *gst_shape_wipe_mask_sink_getcaps (GstPad * pad); +static gboolean gst_shape_wipe_src_event (GstPad * pad, GstEvent * event); +static GstCaps *gst_shape_wipe_src_getcaps (GstPad * pad); +static gboolean gst_shape_wipe_src_query (GstPad * pad, GstQuery * query); + +enum +{ + PROP_0, + PROP_POSITION, + PROP_BORDER +}; + +#define DEFAULT_POSITION 0.0 +#define DEFAULT_BORDER 0.0 + +static GstStaticPadTemplate video_sink_pad_template = + GST_STATIC_PAD_TEMPLATE ("video_sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; " + GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA)); + +static GstStaticPadTemplate mask_sink_pad_template = + GST_STATIC_PAD_TEMPLATE ("mask_sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-raw-gray, " + "bpp = 8, " + "depth = 8, " + "width = " GST_VIDEO_SIZE_RANGE ", " + "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1 ; " + "video/x-raw-gray, " "bpp = 16, " "depth = 16, " + "endianness = BYTE_ORDER, " "width = " GST_VIDEO_SIZE_RANGE ", " + "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = 0/1")); + +static GstStaticPadTemplate src_pad_template = + GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, + GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV") " ; " GST_VIDEO_CAPS_ARGB " ; " + GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA)); + +GST_DEBUG_CATEGORY_STATIC (gst_shape_wipe_debug); +#define GST_CAT_DEFAULT gst_shape_wipe_debug + +GST_BOILERPLATE (GstShapeWipe, gst_shape_wipe, GstElement, GST_TYPE_ELEMENT); + +static void +gst_shape_wipe_base_init (gpointer g_class) +{ + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_set_details_simple (gstelement_class, + "Shape Wipe transition filter", + "Filter/Editor/Video", + "Adds a shape wipe transition to a video stream", + "Sebastian Dröge <sebastian.droege@collabora.co.uk>"); + + gst_element_class_add_static_pad_template (gstelement_class, + &video_sink_pad_template); + gst_element_class_add_static_pad_template (gstelement_class, + &mask_sink_pad_template); + gst_element_class_add_static_pad_template (gstelement_class, + &src_pad_template); +} + +static void +gst_shape_wipe_class_init (GstShapeWipeClass * klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); + + gobject_class->finalize = gst_shape_wipe_finalize; + gobject_class->set_property = gst_shape_wipe_set_property; + gobject_class->get_property = gst_shape_wipe_get_property; + + g_object_class_install_property (gobject_class, PROP_POSITION, + g_param_spec_float ("position", "Position", "Position of the mask", + 0.0, 1.0, DEFAULT_POSITION, + G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + g_object_class_install_property (gobject_class, PROP_BORDER, + g_param_spec_float ("border", "Border", "Border of the mask", + 0.0, 1.0, DEFAULT_BORDER, + G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + + gstelement_class->change_state = + GST_DEBUG_FUNCPTR (gst_shape_wipe_change_state); +} + +static void +gst_shape_wipe_init (GstShapeWipe * self, GstShapeWipeClass * g_class) +{ + self->video_sinkpad = + gst_pad_new_from_static_template (&video_sink_pad_template, "video_sink"); + gst_pad_set_chain_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_chain)); + gst_pad_set_event_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_event)); + gst_pad_set_setcaps_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_setcaps)); + gst_pad_set_getcaps_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_getcaps)); + gst_pad_set_bufferalloc_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_bufferalloc)); + gst_pad_set_query_function (self->video_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_video_sink_query)); + gst_element_add_pad (GST_ELEMENT (self), self->video_sinkpad); + + self->mask_sinkpad = + gst_pad_new_from_static_template (&mask_sink_pad_template, "mask_sink"); + gst_pad_set_chain_function (self->mask_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_chain)); + gst_pad_set_event_function (self->mask_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_event)); + gst_pad_set_setcaps_function (self->mask_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_setcaps)); + gst_pad_set_getcaps_function (self->mask_sinkpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_mask_sink_getcaps)); + gst_element_add_pad (GST_ELEMENT (self), self->mask_sinkpad); + + self->srcpad = gst_pad_new_from_static_template (&src_pad_template, "src"); + gst_pad_set_event_function (self->srcpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_src_event)); + gst_pad_set_getcaps_function (self->srcpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_src_getcaps)); + gst_pad_set_query_function (self->srcpad, + GST_DEBUG_FUNCPTR (gst_shape_wipe_src_query)); + gst_element_add_pad (GST_ELEMENT (self), self->srcpad); + + self->mask_mutex = g_mutex_new (); + self->mask_cond = g_cond_new (); + + gst_shape_wipe_reset (self); +} + +static void +gst_shape_wipe_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (object); + + switch (prop_id) { + case PROP_POSITION: + g_value_set_float (value, self->mask_position); + break; + case PROP_BORDER: + g_value_set_float (value, self->mask_border); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_shape_wipe_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (object); + + switch (prop_id) { + case PROP_POSITION:{ + gfloat f = g_value_get_float (value); + + GST_LOG_OBJECT (self, "Setting mask position: %f", f); + self->mask_position = f; + break; + } + case PROP_BORDER:{ + gfloat f = g_value_get_float (value); + + GST_LOG_OBJECT (self, "Setting mask border: %f", f); + self->mask_border = f; + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_shape_wipe_finalize (GObject * object) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (object); + + gst_shape_wipe_reset (self); + + if (self->mask_cond) + g_cond_free (self->mask_cond); + self->mask_cond = NULL; + + if (self->mask_mutex) + g_mutex_free (self->mask_mutex); + self->mask_mutex = NULL; + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gst_shape_wipe_reset (GstShapeWipe * self) +{ + GST_DEBUG_OBJECT (self, "Resetting internal state"); + + if (self->mask) + gst_buffer_unref (self->mask); + self->mask = NULL; + + g_mutex_lock (self->mask_mutex); + g_cond_signal (self->mask_cond); + g_mutex_unlock (self->mask_mutex); + + self->fmt = GST_VIDEO_FORMAT_UNKNOWN; + self->width = self->height = 0; + self->mask_bpp = 0; + + gst_segment_init (&self->segment, GST_FORMAT_TIME); + + gst_shape_wipe_reset_qos (self); + self->frame_duration = 0; +} + +static GstFlowReturn +gst_shape_wipe_video_sink_bufferalloc (GstPad * pad, guint64 offset, guint size, + GstCaps * caps, GstBuffer ** buf) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + GstFlowReturn ret = GST_FLOW_OK; + + GST_LOG_OBJECT (pad, "Allocating buffer with offset 0x%" G_GINT64_MODIFIER + "x and size %u with caps: %" GST_PTR_FORMAT, offset, size, caps); + + *buf = NULL; + + ret = gst_pad_alloc_buffer (self->srcpad, offset, size, caps, buf); + if (G_UNLIKELY (ret != GST_FLOW_OK)) + GST_ERROR_OBJECT (pad, "Allocating buffer failed: %s", + gst_flow_get_name (ret)); + + gst_object_unref (self); + + return ret; +} + +static gboolean +gst_shape_wipe_video_sink_setcaps (GstPad * pad, GstCaps * caps) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret = TRUE; + GstStructure *s; + GstVideoFormat fmt; + gint width, height; + gint fps_n, fps_d; + + GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps); + + s = gst_caps_get_structure (caps, 0); + + if (!gst_video_format_parse_caps (caps, &fmt, &width, &height) || + !gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d)) { + GST_ERROR_OBJECT (pad, "Invalid caps"); + ret = FALSE; + goto done; + } + + self->fmt = fmt; + if (self->width != width || self->height != height) { + g_mutex_lock (self->mask_mutex); + self->width = width; + self->height = height; + + if (self->mask) + gst_buffer_unref (self->mask); + self->mask = NULL; + g_mutex_unlock (self->mask_mutex); + } + + if (fps_n != 0) + self->frame_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n); + else + self->frame_duration = 0; + + ret = gst_pad_set_caps (self->srcpad, caps); + +done: + gst_object_unref (self); + + return ret; +} + +static GstCaps * +gst_shape_wipe_video_sink_getcaps (GstPad * pad) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + GstCaps *ret, *tmp; + + if (GST_PAD_CAPS (pad)) + return gst_caps_copy (GST_PAD_CAPS (pad)); + + tmp = gst_pad_peer_get_caps (self->srcpad); + if (tmp) { + ret = gst_caps_intersect (tmp, gst_pad_get_pad_template_caps (pad)); + gst_caps_unref (tmp); + } else { + ret = gst_caps_copy (gst_pad_get_pad_template_caps (pad)); + } + + GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret); + + if (gst_caps_is_empty (ret)) + goto done; + + tmp = gst_pad_peer_get_caps (pad); + + GST_LOG_OBJECT (pad, "peerpad accepted caps: %" GST_PTR_FORMAT, tmp); + if (tmp) { + GstCaps *intersection; + + intersection = gst_caps_intersect (tmp, ret); + gst_caps_unref (tmp); + gst_caps_unref (ret); + ret = intersection; + } + + GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, tmp); + + if (gst_caps_is_empty (ret)) + goto done; + + if (self->height && self->width) { + guint i, n; + + n = gst_caps_get_size (ret); + for (i = 0; i < n; i++) { + GstStructure *s = gst_caps_get_structure (ret, i); + + gst_structure_set (s, "width", G_TYPE_INT, self->width, "height", + G_TYPE_INT, self->height, NULL); + } + } + + tmp = gst_pad_peer_get_caps (self->mask_sinkpad); + + GST_LOG_OBJECT (pad, "mask accepted caps: %" GST_PTR_FORMAT, tmp); + if (tmp) { + GstCaps *intersection, *tmp2; + guint i, n; + + tmp = gst_caps_make_writable (tmp); + + tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad)); + + intersection = gst_caps_intersect (tmp, tmp2); + gst_caps_unref (tmp); + gst_caps_unref (tmp2); + tmp = intersection; + + n = gst_caps_get_size (tmp); + + tmp2 = gst_caps_new_empty (); + for (i = 0; i < n; i++) { + GstStructure *s = gst_caps_get_structure (tmp, i); + GstStructure *c; + + gst_structure_remove_fields (s, "format", "bpp", "depth", "endianness", + "framerate", "red_mask", "green_mask", "blue_mask", "alpha_mask", + NULL); + gst_structure_set_name (s, "video/x-raw-yuv"); + c = gst_structure_copy (s); + gst_structure_set_name (c, "video/x-raw-rgb"); + gst_caps_append_structure (tmp2, c); + } + gst_caps_append (tmp, tmp2); + + intersection = gst_caps_intersect (tmp, ret); + gst_caps_unref (tmp); + gst_caps_unref (ret); + ret = intersection; + } +done: + + gst_object_unref (self); + + GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret); + + return ret; +} + +static gboolean +gst_shape_wipe_mask_sink_setcaps (GstPad * pad, GstCaps * caps) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret = TRUE; + GstStructure *s; + gint width, height, bpp; + + GST_DEBUG_OBJECT (pad, "Setting caps: %" GST_PTR_FORMAT, caps); + + s = gst_caps_get_structure (caps, 0); + + if (!gst_structure_get_int (s, "width", &width) || + !gst_structure_get_int (s, "height", &height) || + !gst_structure_get_int (s, "bpp", &bpp)) { + ret = FALSE; + goto done; + } + + if ((self->width != width || self->height != height) && + self->width > 0 && self->height > 0) { + GST_ERROR_OBJECT (pad, "Mask caps must have the same width/height " + "as the video caps"); + ret = FALSE; + goto done; + } else { + self->width = width; + self->height = height; + } + + self->mask_bpp = bpp; + +done: + gst_object_unref (self); + + return ret; +} + +static GstCaps * +gst_shape_wipe_mask_sink_getcaps (GstPad * pad) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + GstCaps *ret, *tmp; + guint i, n; + + if (GST_PAD_CAPS (pad)) + return gst_caps_copy (GST_PAD_CAPS (pad)); + + tmp = gst_pad_peer_get_caps (self->video_sinkpad); + if (tmp) { + ret = + gst_caps_intersect (tmp, + gst_pad_get_pad_template_caps (self->video_sinkpad)); + gst_caps_unref (tmp); + } else { + ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad)); + } + + GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret); + + if (gst_caps_is_empty (ret)) + goto done; + + tmp = gst_pad_peer_get_caps (self->srcpad); + GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret); + + if (tmp) { + GstCaps *intersection; + + intersection = gst_caps_intersect (ret, tmp); + gst_caps_unref (ret); + gst_caps_unref (tmp); + ret = intersection; + } + + GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret); + + if (gst_caps_is_empty (ret)) + goto done; + + n = gst_caps_get_size (ret); + tmp = gst_caps_new_empty (); + for (i = 0; i < n; i++) { + GstStructure *s = gst_caps_get_structure (ret, i); + GstStructure *t; + + gst_structure_set_name (s, "video/x-raw-gray"); + gst_structure_remove_fields (s, "format", "framerate", "bpp", "depth", + "endianness", "framerate", "red_mask", "green_mask", "blue_mask", + "alpha_mask", NULL); + + if (self->width && self->height) + gst_structure_set (s, "width", G_TYPE_INT, self->width, "height", + G_TYPE_INT, self->height, NULL); + + gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL); + + t = gst_structure_copy (s); + + gst_structure_set (s, "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, + "endianness", G_TYPE_INT, G_BYTE_ORDER, NULL); + gst_structure_set (t, "bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL); + + gst_caps_append_structure (tmp, t); + } + gst_caps_append (ret, tmp); + + tmp = gst_pad_peer_get_caps (pad); + GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, tmp); + + if (tmp) { + GstCaps *intersection; + + intersection = gst_caps_intersect (tmp, ret); + gst_caps_unref (tmp); + gst_caps_unref (ret); + ret = intersection; + } + +done: + gst_object_unref (self); + + GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret); + + return ret; +} + +static GstCaps * +gst_shape_wipe_src_getcaps (GstPad * pad) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + GstCaps *ret, *tmp; + + if (GST_PAD_CAPS (pad)) + return gst_caps_copy (GST_PAD_CAPS (pad)); + else if (GST_PAD_CAPS (self->video_sinkpad)) + return gst_caps_copy (GST_PAD_CAPS (self->video_sinkpad)); + + tmp = gst_pad_peer_get_caps (self->video_sinkpad); + if (tmp) { + ret = + gst_caps_intersect (tmp, + gst_pad_get_pad_template_caps (self->video_sinkpad)); + gst_caps_unref (tmp); + } else { + ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad)); + } + + GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret); + + if (gst_caps_is_empty (ret)) + goto done; + + tmp = gst_pad_peer_get_caps (pad); + GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, ret); + if (tmp) { + GstCaps *intersection; + + intersection = gst_caps_intersect (tmp, ret); + gst_caps_unref (tmp); + gst_caps_unref (ret); + ret = intersection; + } + + GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret); + + if (gst_caps_is_empty (ret)) + goto done; + + if (self->height && self->width) { + guint i, n; + + n = gst_caps_get_size (ret); + for (i = 0; i < n; i++) { + GstStructure *s = gst_caps_get_structure (ret, i); + + gst_structure_set (s, "width", G_TYPE_INT, self->width, "height", + G_TYPE_INT, self->height, NULL); + } + } + + tmp = gst_pad_peer_get_caps (self->mask_sinkpad); + GST_LOG_OBJECT (pad, "mask sink accepted caps: %" GST_PTR_FORMAT, ret); + if (tmp) { + GstCaps *intersection, *tmp2; + guint i, n; + + tmp = gst_caps_make_writable (tmp); + tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad)); + + intersection = gst_caps_intersect (tmp, tmp2); + gst_caps_unref (tmp); + gst_caps_unref (tmp2); + + tmp = intersection; + n = gst_caps_get_size (tmp); + + tmp2 = gst_caps_new_empty (); + for (i = 0; i < n; i++) { + GstStructure *s = gst_caps_get_structure (tmp, i); + GstStructure *c; + + gst_structure_remove_fields (s, "format", "bpp", "depth", "endianness", + "framerate", "red_mask", "green_mask", "blue_mask", "alpha_mask", + NULL); + gst_structure_set_name (s, "video/x-raw-yuv"); + c = gst_structure_copy (s); + + gst_caps_append_structure (tmp2, c); + } + gst_caps_append (tmp, tmp2); + + intersection = gst_caps_intersect (tmp, ret); + gst_caps_unref (tmp); + gst_caps_unref (ret); + ret = intersection; + } + +done: + + gst_object_unref (self); + + GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret); + + return ret; +} + +static gboolean +gst_shape_wipe_video_sink_query (GstPad * pad, GstQuery * query) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret; + GstPad *peer = gst_pad_get_peer (self->srcpad); + + GST_LOG_OBJECT (pad, "Handling query of type '%s'", + gst_query_type_get_name (GST_QUERY_TYPE (query))); + + if (!peer) { + GST_INFO_OBJECT (pad, "No peer yet, dropping query"); + ret = FALSE; + } else { + ret = gst_pad_query (peer, query); + gst_object_unref (peer); + } + + gst_object_unref (self); + return ret; +} + +static gboolean +gst_shape_wipe_src_query (GstPad * pad, GstQuery * query) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret; + GstPad *peer = gst_pad_get_peer (self->video_sinkpad); + + GST_LOG_OBJECT (pad, "Handling query of type '%s'", + gst_query_type_get_name (GST_QUERY_TYPE (query))); + + if (!peer) { + GST_INFO_OBJECT (pad, "No peer yet, dropping query"); + ret = FALSE; + } else { + ret = gst_pad_query (peer, query); + gst_object_unref (peer); + } + + gst_object_unref (self); + return ret; +} + +static void +gst_shape_wipe_update_qos (GstShapeWipe * self, gdouble proportion, + GstClockTimeDiff diff, GstClockTime timestamp) +{ + GST_OBJECT_LOCK (self); + self->proportion = proportion; + if (G_LIKELY (timestamp != GST_CLOCK_TIME_NONE)) { + if (G_UNLIKELY (diff > 0)) + self->earliest_time = timestamp + 2 * diff + self->frame_duration; + else + self->earliest_time = timestamp + diff; + } else { + self->earliest_time = GST_CLOCK_TIME_NONE; + } + GST_OBJECT_UNLOCK (self); +} + +static void +gst_shape_wipe_reset_qos (GstShapeWipe * self) +{ + gst_shape_wipe_update_qos (self, 0.5, 0, GST_CLOCK_TIME_NONE); +} + +static void +gst_shape_wipe_read_qos (GstShapeWipe * self, gdouble * proportion, + GstClockTime * time) +{ + GST_OBJECT_LOCK (self); + *proportion = self->proportion; + *time = self->earliest_time; + GST_OBJECT_UNLOCK (self); +} + +/* Perform qos calculations before processing the next frame. Returns TRUE if + * the frame should be processed, FALSE if the frame can be dropped entirely */ +static gboolean +gst_shape_wipe_do_qos (GstShapeWipe * self, GstClockTime timestamp) +{ + GstClockTime qostime, earliest_time; + gdouble proportion; + + /* no timestamp, can't do QoS => process frame */ + if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (timestamp))) { + GST_LOG_OBJECT (self, "invalid timestamp, can't do QoS, process frame"); + return TRUE; + } + + /* get latest QoS observation values */ + gst_shape_wipe_read_qos (self, &proportion, &earliest_time); + + /* skip qos if we have no observation (yet) => process frame */ + if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (earliest_time))) { + GST_LOG_OBJECT (self, "no observation yet, process frame"); + return TRUE; + } + + /* qos is done on running time */ + qostime = gst_segment_to_running_time (&self->segment, GST_FORMAT_TIME, + timestamp); + + /* see how our next timestamp relates to the latest qos timestamp */ + GST_LOG_OBJECT (self, "qostime %" GST_TIME_FORMAT ", earliest %" + GST_TIME_FORMAT, GST_TIME_ARGS (qostime), GST_TIME_ARGS (earliest_time)); + + if (qostime != GST_CLOCK_TIME_NONE && qostime <= earliest_time) { + GST_DEBUG_OBJECT (self, "we are late, drop frame"); + return FALSE; + } + + GST_LOG_OBJECT (self, "process frame"); + return TRUE; +} + +#define CREATE_ARGB_FUNCTIONS(depth, name, shift, a, r, g, b) \ +static void \ +gst_shape_wipe_blend_##name##_##depth (GstShapeWipe * self, GstBuffer * inbuf, \ + GstBuffer * maskbuf, GstBuffer * outbuf) \ +{ \ + const guint##depth *mask = (const guint##depth *) GST_BUFFER_DATA (maskbuf); \ + const guint8 *input = (const guint8 *) GST_BUFFER_DATA (inbuf); \ + guint8 *output = (guint8 *) GST_BUFFER_DATA (outbuf); \ + guint i, j; \ + guint mask_increment = ((depth == 16) ? GST_ROUND_UP_2 (self->width) : \ + GST_ROUND_UP_4 (self->width)) - self->width; \ + gfloat position = self->mask_position; \ + gfloat low = position - (self->mask_border / 2.0f); \ + gfloat high = position + (self->mask_border / 2.0f); \ + guint32 low_i, high_i, round_i; \ + gint width = self->width, height = self->height; \ + \ + if (low < 0.0f) { \ + high = 0.0f; \ + low = 0.0f; \ + } \ + \ + if (high > 1.0f) { \ + low = 1.0f; \ + high = 1.0f; \ + } \ + \ + low_i = low * 65536; \ + high_i = high * 65536; \ + round_i = (high_i - low_i) >> 1; \ + \ + for (i = 0; i < height; i++) { \ + for (j = 0; j < width; j++) { \ + guint32 in = *mask << shift; \ + \ + if (in < low_i) { \ + output[a] = 0x00; /* A */ \ + output[r] = input[r]; /* R */ \ + output[g] = input[g]; /* G */ \ + output[b] = input[b]; /* B */ \ + } else if (in >= high_i) { \ + output[a] = input[a]; /* A */ \ + output[r] = input[r]; /* R */ \ + output[g] = input[g]; /* G */ \ + output[b] = input[b]; /* B */ \ + } else { \ + guint32 val; \ + /* Note: This will never overflow or be larger than 255! */ \ + val = (((in - low_i) << 16) + round_i) / (high_i - low_i); \ + val = (val * input[a] + 32768) >> 16; \ + \ + output[a] = val; /* A */ \ + output[r] = input[r]; /* R */ \ + output[g] = input[g]; /* G */ \ + output[b] = input[b]; /* B */ \ + } \ + \ + mask++; \ + input += 4; \ + output += 4; \ + } \ + mask += mask_increment; \ + } \ +} + +CREATE_ARGB_FUNCTIONS (16, argb, 0, 0, 1, 2, 3); +CREATE_ARGB_FUNCTIONS (8, argb, 8, 0, 1, 2, 3); + +CREATE_ARGB_FUNCTIONS (16, bgra, 0, 3, 2, 1, 0); +CREATE_ARGB_FUNCTIONS (8, bgra, 8, 3, 2, 1, 0); + +static GstFlowReturn +gst_shape_wipe_video_sink_chain (GstPad * pad, GstBuffer * buffer) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad)); + GstFlowReturn ret = GST_FLOW_OK; + GstBuffer *mask = NULL, *outbuf = NULL; + GstClockTime timestamp; + gboolean new_outbuf = FALSE; + + if (G_UNLIKELY (self->fmt == GST_VIDEO_FORMAT_UNKNOWN)) + goto not_negotiated; + + timestamp = GST_BUFFER_TIMESTAMP (buffer); + timestamp = + gst_segment_to_stream_time (&self->segment, GST_FORMAT_TIME, timestamp); + + if (GST_CLOCK_TIME_IS_VALID (timestamp)) + gst_object_sync_values (G_OBJECT (self), timestamp); + + GST_LOG_OBJECT (self, + "Blending buffer with timestamp %" GST_TIME_FORMAT " at position %f", + GST_TIME_ARGS (timestamp), self->mask_position); + + g_mutex_lock (self->mask_mutex); + if (self->shutdown) + goto shutdown; + + if (!self->mask) + g_cond_wait (self->mask_cond, self->mask_mutex); + + if (self->mask == NULL || self->shutdown) { + goto shutdown; + } else { + mask = gst_buffer_ref (self->mask); + } + g_mutex_unlock (self->mask_mutex); + + if (!gst_shape_wipe_do_qos (self, GST_BUFFER_TIMESTAMP (buffer))) + goto qos; + + /* Try to blend inplace, if it's not possible + * get a new buffer from downstream. */ + if (!gst_buffer_is_writable (buffer)) { + ret = + gst_pad_alloc_buffer_and_set_caps (self->srcpad, GST_BUFFER_OFFSET_NONE, + GST_BUFFER_SIZE (buffer), GST_PAD_CAPS (self->srcpad), &outbuf); + if (G_UNLIKELY (ret != GST_FLOW_OK)) + goto alloc_failed; + + gst_buffer_copy_metadata (outbuf, buffer, GST_BUFFER_COPY_ALL); + new_outbuf = TRUE; + } else { + outbuf = buffer; + } + + switch (self->fmt) { + case GST_VIDEO_FORMAT_AYUV: + case GST_VIDEO_FORMAT_ARGB: + case GST_VIDEO_FORMAT_ABGR: + if (self->mask_bpp == 16) + gst_shape_wipe_blend_argb_16 (self, buffer, mask, outbuf); + else + gst_shape_wipe_blend_argb_8 (self, buffer, mask, outbuf); + break; + case GST_VIDEO_FORMAT_BGRA: + case GST_VIDEO_FORMAT_RGBA: + if (self->mask_bpp == 16) + gst_shape_wipe_blend_bgra_16 (self, buffer, mask, outbuf); + else + gst_shape_wipe_blend_bgra_8 (self, buffer, mask, outbuf); + break; + default: + g_assert_not_reached (); + break; + } + + gst_buffer_unref (mask); + if (new_outbuf) + gst_buffer_unref (buffer); + + ret = gst_pad_push (self->srcpad, outbuf); + if (G_UNLIKELY (ret != GST_FLOW_OK)) + goto push_failed; + + return ret; + + /* Errors */ +not_negotiated: + GST_ERROR_OBJECT (self, "No valid caps yet"); + gst_buffer_unref (buffer); + return GST_FLOW_NOT_NEGOTIATED; +shutdown: + GST_DEBUG_OBJECT (self, "Shutting down"); + gst_buffer_unref (buffer); + return GST_FLOW_WRONG_STATE; +qos: + GST_DEBUG_OBJECT (self, "Dropping buffer because of QoS"); + gst_buffer_unref (buffer); + gst_buffer_unref (mask); + return GST_FLOW_OK; +alloc_failed: + GST_ERROR_OBJECT (self, "Buffer allocation from downstream failed: %s", + gst_flow_get_name (ret)); + gst_buffer_unref (buffer); + gst_buffer_unref (mask); + return ret; +push_failed: + GST_ERROR_OBJECT (self, "Pushing buffer downstream failed: %s", + gst_flow_get_name (ret)); + return ret; +} + +static GstFlowReturn +gst_shape_wipe_mask_sink_chain (GstPad * pad, GstBuffer * buffer) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (GST_PAD_PARENT (pad)); + GstFlowReturn ret = GST_FLOW_OK; + + g_mutex_lock (self->mask_mutex); + GST_DEBUG_OBJECT (self, "Setting new mask buffer: %" GST_PTR_FORMAT, buffer); + + gst_buffer_replace (&self->mask, buffer); + g_cond_signal (self->mask_cond); + g_mutex_unlock (self->mask_mutex); + + gst_buffer_unref (buffer); + + return ret; +} + +static GstStateChangeReturn +gst_shape_wipe_change_state (GstElement * element, GstStateChange transition) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (element); + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_PAUSED: + self->shutdown = FALSE; + break; + case GST_STATE_CHANGE_PAUSED_TO_READY: + /* Unblock video sink chain function */ + g_mutex_lock (self->mask_mutex); + self->shutdown = TRUE; + g_cond_signal (self->mask_cond); + g_mutex_unlock (self->mask_mutex); + break; + default: + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) + ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); + + switch (transition) { + case GST_STATE_CHANGE_PAUSED_TO_READY: + gst_shape_wipe_reset (self); + break; + default: + break; + } + + return ret; +} + +static gboolean +gst_shape_wipe_video_sink_event (GstPad * pad, GstEvent * event) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret; + + GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_NEWSEGMENT:{ + GstFormat fmt; + gboolean is_update; + gint64 start, end, base; + gdouble rate; + + gst_event_parse_new_segment (event, &is_update, &rate, &fmt, &start, + &end, &base); + if (fmt == GST_FORMAT_TIME) { + GST_DEBUG_OBJECT (pad, + "Got NEWSEGMENT event in GST_FORMAT_TIME, passing on (%" + GST_TIME_FORMAT " - %" GST_TIME_FORMAT ")", GST_TIME_ARGS (start), + GST_TIME_ARGS (end)); + gst_segment_set_newsegment (&self->segment, is_update, rate, fmt, start, + end, base); + } else { + gst_segment_init (&self->segment, GST_FORMAT_TIME); + } + } + /* fall through */ + case GST_EVENT_FLUSH_STOP: + gst_shape_wipe_reset_qos (self); + /* fall through */ + default: + ret = gst_pad_push_event (self->srcpad, event); + break; + } + + gst_object_unref (self); + return ret; +} + +static gboolean +gst_shape_wipe_mask_sink_event (GstPad * pad, GstEvent * event) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + + GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_FLUSH_STOP: + g_mutex_lock (self->mask_mutex); + gst_buffer_replace (&self->mask, NULL); + g_mutex_unlock (self->mask_mutex); + break; + default: + break; + } + + /* Dropping all events here */ + gst_event_unref (event); + + gst_object_unref (self); + return TRUE; +} + +static gboolean +gst_shape_wipe_src_event (GstPad * pad, GstEvent * event) +{ + GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad)); + gboolean ret; + + GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_QOS:{ + GstClockTimeDiff diff; + GstClockTime timestamp; + gdouble proportion; + + gst_event_parse_qos (event, &proportion, &diff, ×tamp); + + gst_shape_wipe_update_qos (self, proportion, diff, timestamp); + } + /* fall through */ + default: + ret = gst_pad_push_event (self->video_sinkpad, event); + break; + } + + gst_object_unref (self); + return ret; +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + GST_DEBUG_CATEGORY_INIT (gst_shape_wipe_debug, "shapewipe", 0, + "shapewipe element"); + + gst_controller_init (NULL, NULL); + + if (!gst_element_register (plugin, "shapewipe", GST_RANK_NONE, + GST_TYPE_SHAPE_WIPE)) + return FALSE; + + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "shapewipe", + "Shape Wipe transition filter", + plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) diff --git a/gst/shapewipe/gstshapewipe.h b/gst/shapewipe/gstshapewipe.h new file mode 100644 index 0000000..36b4fc5 --- /dev/null +++ b/gst/shapewipe/gstshapewipe.h @@ -0,0 +1,81 @@ +/* GStreamer + * Copyright (C) 2009,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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. + */ + +#ifndef __GST_SHAPE_WIPE_H__ +#define __GST_SHAPE_WIPE_H__ + +#include <gst/gst.h> +#include <gst/video/video.h> + +G_BEGIN_DECLS + +#define GST_TYPE_SHAPE_WIPE \ + (gst_shape_wipe_get_type()) +#define GST_SHAPE_WIPE(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SHAPE_WIPE,GstShapeWipe)) +#define GST_SHAPE_WIPE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SHAPE_WIPE,GstShapeWipeClass)) +#define GST_SHAPE_WIPE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_SHAPE_WIPE,GstShapeWipeClass)) +#define GST_IS_SHAPE_WIPE(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SHAPE_WIPE)) +#define GST_IS_SHAPE_WIPE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SHAPE_WIPE)) + +typedef struct _GstShapeWipe GstShapeWipe; +typedef struct _GstShapeWipeClass GstShapeWipeClass; + +struct _GstShapeWipe +{ + GstElement parent; + + /* private */ + GstPad *video_sinkpad; + GstPad *mask_sinkpad; + + GstPad *srcpad; + + GstSegment segment; + + GstBuffer *mask; + gfloat mask_position; + gfloat mask_border; + GMutex *mask_mutex; + GCond *mask_cond; + gint mask_bpp; + + GstVideoFormat fmt; + gint width, height; + + gboolean shutdown; + + gdouble proportion; + GstClockTime earliest_time; + GstClockTime frame_duration; +}; + +struct _GstShapeWipeClass +{ + GstElementClass parent_class; +}; + +GType gst_shape_wipe_get_type (void); + +G_END_DECLS + +#endif /* __GST_SHAPE_WIPE_H__ */ |