mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-04 05:22:30 +00:00
Added the base framework for the SMPTE transitions and wipes.
Original commit message from CVS: Added the base framework for the SMPTE transitions and wipes.
This commit is contained in:
parent
5f4fb78871
commit
9b067365c9
8 changed files with 921 additions and 0 deletions
14
gst/smpte/Makefile.am
Normal file
14
gst/smpte/Makefile.am
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@ -0,0 +1,14 @@
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plugindir = $(libdir)/gst
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plugin_LTLIBRARIES = libgstsmpte.la
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libgstsmpte_la_SOURCES = gstsmpte.c gstmask.c barboxwipes.c paint.c
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noinst_HEADERS = gstsmpte.h gstmask.h paint.h
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libgstsmpte_la_CFLAGS = -O2 -ffast-math $(GST_CFLAGS)
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libgstsmpte_la_LIBADD =
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libgstsmpte_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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EXTRA_DIST =
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152
gst/smpte/barboxwipes.c
Normal file
152
gst/smpte/barboxwipes.c
Normal file
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@ -0,0 +1,152 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "paint.h"
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#include "gstmask.h"
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static void
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gst_bar_wipe_lr_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration)
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{
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gint width = mask->width;
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gint height = mask->height;
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gint split = (position * width) / duration;
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gst_smpte_paint_rect (mask->data, width, split, 0, width - split, height, 0);
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gst_smpte_paint_rect (mask->data, width, 0, 0, split, height, 255);
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}
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static void
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gst_bar_wipe_tb_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration)
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{
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gint width = mask->width;
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gint height = mask->height;
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gint split = (position * height) / duration;
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gst_smpte_paint_rect (mask->data, width, 0, 0, width, split, 255);
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gst_smpte_paint_rect (mask->data, width, 0, split, width, height - split, 0);
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}
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static void
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gst_box_wipe_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration)
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{
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static gint box_wipe_impacts[8][4] =
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{
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/* 3 -> 6 */
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{ 0, 0, 0, 0 },
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{ 2, 2, 0, 0 },
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{ 2, 2, 2, 2 },
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{ 0, 0, 2, 2 },
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/* 23 -> 26 */
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{ 1, 1, 0, 0 },
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{ 2, 2, 1, 1 },
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{ 1, 1, 2, 2 },
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{ 0, 0, 1, 1 },
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};
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gint *impacts = box_wipe_impacts[(mask->type & 0x0F) - 3];
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gint width = mask->width;
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gint height = mask->height;
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gint splitx = (position * width) / duration;
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gint splity = (position * height) / duration;
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gst_smpte_paint_rect (mask->data, width, 0, 0, width, height, 0);
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gst_smpte_paint_rect (mask->data, width,
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(impacts[0] * width)/2 - (impacts[1] * splitx)/2,
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(impacts[2] * height)/2 - (impacts[3] * splity)/2,
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splitx, splity, 255);
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}
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static void
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gst_fourc_box_wipe_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration)
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{
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static gint box_wipe_impacts[8][4] =
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{
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{ 0, 0, 0, 0 },
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{ 1, 1, 1, 1 },
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{ 4, 2, 0, 0 },
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{ 3, 1, 1, 1 },
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{ 4, 2, 4, 2 },
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{ 1, 1, 3, 1 },
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{ 0, 0, 4, 2 },
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{ 3, 1, 3, 1 },
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};
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gint *impacts;
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gint width = mask->width;
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gint height = mask->height;
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gint splitx = (position * width/2) / duration;
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gint splity = (position * height/2) / duration;
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gint i;
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gst_smpte_paint_rect (mask->data, width, 0, 0, width, height, 0);
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for (i = 7; i > 0; i -= 2) {
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impacts = box_wipe_impacts[mask->type - i];
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gst_smpte_paint_rect (mask->data, width,
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(impacts[0] * width)/4 - (impacts[1] * splitx)/2,
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(impacts[2] * height)/4 - (impacts[3] * splity)/2,
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splitx, splity, 255);
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}
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}
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static GstMaskDefinition definitions[] = {
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{ 1, "bar_wipe_lr", "A bar moves from left to right",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_lr_update },
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{ 2, "bar_wipe_tb", "A bar moves from top to bottom",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_tb_update },
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{ 3, "box_wipe_tl", "A box expands from the upper-left corner to the lower-right corner",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 4, "box_wipe_tr", "A box expands from the upper-right corner to the lower-left corner",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 5, "box_wipe_br", "A box expands from the lower-right corner to the upper-left corner",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 6, "box_wipe_bl", "A box expands from the lower-left corner to the upper-right corner",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 23, "box_wipe_tc", "A box expands from the top edge's midpoint to the bottom corners",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 24, "box_wipe_rc", "A box expands from the right edge's midpoint to the left corners",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 25, "box_wipe_bc", "A box expands from the bottom edge's midpoint to the top corners",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 26, "box_wipe_lc", "A box expands from the left edge's midpoint to the right corners",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
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{ 7 , "four_box_wipe_ci", "A box shape expands from each of the four corners toward the center",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
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{ 8 , "four_box_wipe_co", "A box shape expands from the center of each quadrant toward the corners of each quadrant",
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_gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
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{ 0, NULL, NULL, NULL }
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};
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void
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_gst_barboxwipes_register (void)
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{
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gint i = 0;
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while (definitions[i].short_name) {
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_gst_mask_register (&definitions[i]);
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i++;
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}
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}
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124
gst/smpte/gstmask.c
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124
gst/smpte/gstmask.c
Normal file
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gstmask.h"
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extern void _gst_barboxwipes_register (void);
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static GList *masks = NULL;
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void
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_gst_mask_init (void)
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{
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_gst_barboxwipes_register ();
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}
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static gint
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gst_mask_compare (GstMaskDefinition *def1,
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GstMaskDefinition *def2)
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{
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return (def1->type - def2->type);
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}
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void
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_gst_mask_register (GstMaskDefinition *definition)
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{
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masks = g_list_insert_sorted (masks, definition, (GCompareFunc) gst_mask_compare);
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}
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const GList*
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gst_mask_get_definitions (void)
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{
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return masks;
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}
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static GstMaskDefinition*
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gst_mask_find_definition (gint type)
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{
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GList *walk = masks;
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while (walk) {
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GstMaskDefinition *def = (GstMaskDefinition *) walk->data;
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if (def->type == type)
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return def;
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walk = g_list_next (walk);
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}
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return NULL;
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}
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GstMask*
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gst_mask_factory_new (gint type, gint bpp, gint width, gint height)
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{
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GstMaskDefinition *definition;
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GstMask *mask = NULL;
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definition = gst_mask_find_definition (type);
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if (definition) {
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mask = definition->new_func (definition, bpp, width, height);
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}
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return mask;
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}
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GstMask*
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_gst_mask_default_new (GstMaskDefinition *definition,
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gint bpp, gint width, gint height)
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{
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GstMask *mask;
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mask = g_new0 (GstMask, 1);
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mask->type = definition->type;
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mask->bpp = bpp;
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mask->width = width;
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mask->height = height;
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mask->update_func = definition->update_func;
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mask->destroy_func = definition->destroy_func;
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mask->data = g_malloc (width * height * (bpp+7)>>3);
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return mask;
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}
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void
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_gst_mask_default_destroy (GstMask *mask)
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{
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g_free (mask->data);
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g_free (mask);
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}
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void
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gst_mask_destroy (GstMask *mask)
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{
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if (mask->destroy_func)
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mask->destroy_func (mask);
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}
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void
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gst_mask_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration)
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{
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g_return_if_fail (mask != NULL);
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if (mask->update_func)
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mask->update_func (mask, position, duration);
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}
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73
gst/smpte/gstmask.h
Normal file
73
gst/smpte/gstmask.h
Normal file
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* 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
|
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MASK_H__
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#define __GST_MASK_H__
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#include <gst/gst.h>
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typedef struct _GstMask GstMask;
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typedef struct _GstMaskDefinition GstMaskDefinition;
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typedef GstMask* (*GstMaskNewFunc) (GstMaskDefinition *definition,
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gint bpp, gint width, gint height);
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typedef void (*GstMaskDestroyFunc) (GstMask *mask);
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typedef void (*GstMaskUpdateFunc) (GstMask *mask,
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GstClockTime position,
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GstClockTime duration);
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struct _GstMaskDefinition {
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gint type;
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gchar *short_name;
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gchar *long_name;
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GstMaskNewFunc new_func;
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GstMaskDestroyFunc destroy_func;
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GstMaskUpdateFunc update_func;
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};
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struct _GstMask {
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gint type;
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guint8 *data;
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gint width;
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gint height;
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gint bpp;
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GstMaskUpdateFunc update_func;
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GstMaskDestroyFunc destroy_func;
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};
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void _gst_mask_init (void);
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void _gst_mask_register (GstMaskDefinition *definition);
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GstMask* _gst_mask_default_new (GstMaskDefinition *definition,
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gint bpp, gint width, gint height);
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void _gst_mask_default_destroy (GstMask *mask);
|
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const GList* gst_mask_get_definitions (void);
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GstMask* gst_mask_factory_new (gint type, gint bpp, gint width, gint height);
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void gst_mask_destroy (GstMask *mask);
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void gst_mask_update (GstMask *mask,
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GstClockTime position,
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GstClockTime duration);
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#endif /* __GST_MASK_H__ */
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409
gst/smpte/gstsmpte.c
Normal file
409
gst/smpte/gstsmpte.c
Normal file
|
@ -0,0 +1,409 @@
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/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* 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.
|
||||
*/
|
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|
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#include <string.h>
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#include <gstsmpte.h>
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#include "paint.h"
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/* elementfactory information */
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static GstElementDetails smpte_details = {
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"SMPTE transitions",
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"Filter/Video",
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"LGPL",
|
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"Apply the standard SMPTE transitions on video images",
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VERSION,
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||||
"Wim Taymans <wim.taymans@chello.be>",
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"(C) 2002",
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};
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||||
GST_PAD_TEMPLATE_FACTORY (smpte_src_factory,
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"src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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||||
GST_CAPS_NEW (
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"smpte_src",
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"video/raw",
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"format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))
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)
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)
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GST_PAD_TEMPLATE_FACTORY (smpte_sink1_factory,
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"sink1",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
|
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"smpte_sink1",
|
||||
"video/raw",
|
||||
"format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
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"width", GST_PROPS_INT_RANGE (0, 4096),
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||||
"height", GST_PROPS_INT_RANGE (0, 4096)
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||||
)
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||||
)
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||||
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||||
GST_PAD_TEMPLATE_FACTORY (smpte_sink2_factory,
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"sink2",
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||||
GST_PAD_SINK,
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GST_PAD_ALWAYS,
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||||
GST_CAPS_NEW (
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"smpte_sink2",
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"video/raw",
|
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"format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
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||||
"width", GST_PROPS_INT_RANGE (0, 4096),
|
||||
"height", GST_PROPS_INT_RANGE (0, 4096)
|
||||
)
|
||||
)
|
||||
|
||||
|
||||
/* SMPTE signals and args */
|
||||
enum {
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||||
/* FILL ME */
|
||||
LAST_SIGNAL
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||||
};
|
||||
|
||||
enum {
|
||||
ARG_0,
|
||||
ARG_TYPE,
|
||||
};
|
||||
|
||||
#define GST_TYPE_SMPTE_TRANSITION_TYPE (gst_smpte_transition_type_get_type())
|
||||
static GType
|
||||
gst_smpte_transition_type_get_type (void)
|
||||
{
|
||||
static GType smpte_transition_type = 0;
|
||||
GEnumValue *smpte_transitions;
|
||||
|
||||
if (!smpte_transition_type) {
|
||||
const GList *definitions;
|
||||
gint i=0;
|
||||
|
||||
definitions = gst_mask_get_definitions ();
|
||||
smpte_transitions = g_new0 (GEnumValue, g_list_length ((GList *)definitions)+1);
|
||||
|
||||
while (definitions) {
|
||||
GstMaskDefinition *definition = (GstMaskDefinition *) definitions->data;
|
||||
definitions = g_list_next (definitions);
|
||||
|
||||
smpte_transitions[i].value = definition->type;
|
||||
smpte_transitions[i].value_name = definition->short_name;
|
||||
smpte_transitions[i].value_nick = definition->long_name;
|
||||
|
||||
i++;
|
||||
}
|
||||
|
||||
smpte_transition_type = g_enum_register_static ("GstSMPTETransitionType", smpte_transitions);
|
||||
}
|
||||
return smpte_transition_type;
|
||||
}
|
||||
|
||||
|
||||
static void gst_smpte_class_init (GstSMPTEClass *klass);
|
||||
static void gst_smpte_init (GstSMPTE *smpte);
|
||||
|
||||
static void gst_smpte_loop (GstElement *element);
|
||||
|
||||
static void gst_smpte_set_property (GObject *object, guint prop_id,
|
||||
const GValue *value, GParamSpec *pspec);
|
||||
static void gst_smpte_get_property (GObject *object, guint prop_id,
|
||||
GValue *value, GParamSpec *pspec);
|
||||
|
||||
static GstElementClass *parent_class = NULL;
|
||||
/*static guint gst_smpte_signals[LAST_SIGNAL] = { 0 }; */
|
||||
|
||||
static GType
|
||||
gst_smpte_get_type (void)
|
||||
{
|
||||
static GType smpte_type = 0;
|
||||
|
||||
if (!smpte_type) {
|
||||
static const GTypeInfo smpte_info = {
|
||||
sizeof(GstSMPTEClass),
|
||||
NULL,
|
||||
NULL,
|
||||
(GClassInitFunc)gst_smpte_class_init,
|
||||
NULL,
|
||||
NULL,
|
||||
sizeof(GstSMPTE),
|
||||
0,
|
||||
(GInstanceInitFunc)gst_smpte_init,
|
||||
};
|
||||
smpte_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSMPTE", &smpte_info, 0);
|
||||
}
|
||||
return smpte_type;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_class_init (GstSMPTEClass *klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
|
||||
gobject_class = (GObjectClass*)klass;
|
||||
gstelement_class = (GstElementClass*)klass;
|
||||
|
||||
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
|
||||
|
||||
gobject_class->set_property = gst_smpte_set_property;
|
||||
gobject_class->get_property = gst_smpte_get_property;
|
||||
|
||||
_gst_mask_init ();
|
||||
|
||||
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TYPE,
|
||||
g_param_spec_enum ("type", "Type", "The type of transition to use",
|
||||
GST_TYPE_SMPTE_TRANSITION_TYPE, 1, G_PARAM_READWRITE));
|
||||
|
||||
}
|
||||
|
||||
/* wht yel cya grn mag red blu blk -I Q */
|
||||
static int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 0 };
|
||||
static int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 0, 128 };
|
||||
static int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 128, 255 };
|
||||
|
||||
static void
|
||||
fill_i420 (guint8 *data, gint width, gint height, gint color)
|
||||
{
|
||||
guint8 *yp = data;
|
||||
guint8 *up = data + width * height;
|
||||
guint8 *vp = data + width * height + (width * height) / 4;
|
||||
|
||||
gst_smpte_paint_rect (yp, width, 0, 0, width, height, y_colors[color]);
|
||||
gst_smpte_paint_rect (up, width/2, 0, 0, width/2, height/2, u_colors[color]);
|
||||
gst_smpte_paint_rect (vp, width/2, 0, 0, width/2, height/2, v_colors[color]);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_smpte_sinkconnect (GstPad *pad, GstCaps *caps)
|
||||
{
|
||||
GstSMPTE *smpte;
|
||||
|
||||
smpte = GST_SMPTE (gst_pad_get_parent (pad));
|
||||
|
||||
if (!GST_CAPS_IS_FIXED (caps))
|
||||
return GST_PAD_CONNECT_DELAYED;
|
||||
|
||||
gst_caps_get_int (caps, "width", &smpte->width);
|
||||
gst_caps_get_int (caps, "height", &smpte->height);
|
||||
|
||||
smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
|
||||
|
||||
/* forward to the next plugin */
|
||||
return gst_pad_try_set_caps(smpte->srcpad, gst_caps_copy_1(caps));
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_init (GstSMPTE *smpte)
|
||||
{
|
||||
smpte->sinkpad1 = gst_pad_new_from_template (
|
||||
GST_PAD_TEMPLATE_GET (smpte_sink1_factory), "sink1");
|
||||
gst_pad_set_connect_function (smpte->sinkpad1, gst_smpte_sinkconnect);
|
||||
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad1);
|
||||
|
||||
smpte->sinkpad2 = gst_pad_new_from_template (
|
||||
GST_PAD_TEMPLATE_GET (smpte_sink2_factory), "sink2");
|
||||
gst_pad_set_connect_function (smpte->sinkpad2, gst_smpte_sinkconnect);
|
||||
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad2);
|
||||
|
||||
smpte->srcpad = gst_pad_new_from_template (
|
||||
GST_PAD_TEMPLATE_GET (smpte_src_factory), "src");
|
||||
gst_element_add_pad (GST_ELEMENT (smpte), smpte->srcpad);
|
||||
|
||||
gst_element_set_loop_function (GST_ELEMENT (smpte), gst_smpte_loop);
|
||||
|
||||
smpte->width = 320;
|
||||
smpte->height = 200;
|
||||
smpte->duration = 64;
|
||||
smpte->position = 0;
|
||||
smpte->type = 1;
|
||||
smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_blend_i420 (guint8 *in1, guint8 *in2, guint8 *out, GstMask *mask,
|
||||
gint width, gint height)
|
||||
{
|
||||
gint i, j;
|
||||
guint8 *maskporig, *maskp;
|
||||
guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv;
|
||||
guint8 value;
|
||||
gint chromsize = (width * height) >> 2;
|
||||
|
||||
maskp = maskporig = mask->data;
|
||||
|
||||
for (i = width * height; i; i--) {
|
||||
value = *maskp++;
|
||||
*out++ = ((*in2++ * value) + (*in1++ * (255 - value))) >> 8;
|
||||
}
|
||||
in1u = in1; in1v = in1 + chromsize;
|
||||
in2u = in2; in2v = in2 + chromsize;
|
||||
outu = out; outv = out + chromsize;
|
||||
|
||||
maskp = maskporig;
|
||||
for (i = height/2; i; i--, maskp += width) {
|
||||
for (j = width/2; j; j--, maskp += 2) {
|
||||
value = *maskp;
|
||||
*outu++ = ((*in2u++ * value) + (*in1u++ * (255 - value))) >> 8;
|
||||
*outv++ = ((*in2v++ * value) + (*in1v++ * (255 - value))) >> 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_loop (GstElement *element)
|
||||
{
|
||||
GstSMPTE *smpte;
|
||||
GstBuffer *outbuf;
|
||||
GstClockTime ts;
|
||||
GstBuffer *in1 = NULL, *in2 = NULL;
|
||||
|
||||
smpte = GST_SMPTE (element);
|
||||
|
||||
ts = smpte->position * GST_SECOND;
|
||||
|
||||
if (GST_PAD_IS_USABLE (smpte->sinkpad1)) {
|
||||
in1 = gst_pad_pull (smpte->sinkpad1);
|
||||
ts = GST_BUFFER_TIMESTAMP (in1);
|
||||
}
|
||||
else {
|
||||
in1 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
|
||||
fill_i420 (GST_BUFFER_DATA (in1), smpte->width, smpte->height, 7);
|
||||
}
|
||||
|
||||
if (GST_PAD_IS_USABLE (smpte->sinkpad2)) {
|
||||
in2 = gst_pad_pull (smpte->sinkpad2);
|
||||
ts = GST_BUFFER_TIMESTAMP (in2);
|
||||
}
|
||||
else {
|
||||
in2 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
|
||||
fill_i420 (GST_BUFFER_DATA (in2), smpte->width, smpte->height, 0);
|
||||
}
|
||||
|
||||
if (smpte->position < smpte->duration) {
|
||||
outbuf = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
|
||||
|
||||
if (!GST_PAD_CAPS (smpte->srcpad)) {
|
||||
if (!gst_pad_try_set_caps (smpte->srcpad,
|
||||
GST_CAPS_NEW (
|
||||
"smpte_srccaps",
|
||||
"video/raw",
|
||||
"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
|
||||
"width", GST_PROPS_INT (smpte->width),
|
||||
"height", GST_PROPS_INT (smpte->height)
|
||||
)))
|
||||
{
|
||||
gst_element_error (element, "cannot set caps");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
gst_mask_update (smpte->mask, smpte->position, smpte->duration);
|
||||
|
||||
gst_smpte_blend_i420 (GST_BUFFER_DATA (in1), GST_BUFFER_DATA (in2), GST_BUFFER_DATA (outbuf),
|
||||
smpte->mask, smpte->width, smpte->height);
|
||||
}
|
||||
else {
|
||||
outbuf = in2;
|
||||
gst_buffer_ref (in2);
|
||||
}
|
||||
|
||||
smpte->position++;
|
||||
|
||||
if (in1)
|
||||
gst_buffer_unref (in1);
|
||||
if (in2)
|
||||
gst_buffer_unref (in2);
|
||||
|
||||
GST_BUFFER_TIMESTAMP (outbuf) = ts;
|
||||
gst_pad_push (smpte->srcpad, outbuf);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_set_property (GObject *object, guint prop_id,
|
||||
const GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstSMPTE *smpte;
|
||||
|
||||
smpte = GST_SMPTE(object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_TYPE:
|
||||
{
|
||||
GstMask *newmask;
|
||||
gint type = g_value_get_enum (value);
|
||||
|
||||
newmask = gst_mask_factory_new (type, 8, smpte->width, smpte->height);
|
||||
if (newmask) {
|
||||
if (smpte->mask) {
|
||||
gst_mask_destroy (smpte->mask);
|
||||
}
|
||||
smpte->mask = newmask;
|
||||
smpte->type = type;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_smpte_get_property (GObject *object, guint prop_id,
|
||||
GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstSMPTE *smpte;
|
||||
|
||||
smpte = GST_SMPTE(object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_TYPE:
|
||||
if (smpte->mask) {
|
||||
g_value_set_enum (value, smpte->mask->type);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static gboolean
|
||||
plugin_init (GModule *module, GstPlugin *plugin)
|
||||
{
|
||||
GstElementFactory *factory;
|
||||
|
||||
factory = gst_element_factory_new("smpte",GST_TYPE_SMPTE,
|
||||
&smpte_details);
|
||||
g_return_val_if_fail(factory != NULL, FALSE);
|
||||
|
||||
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink1_factory));
|
||||
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink2_factory));
|
||||
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_src_factory));
|
||||
|
||||
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GstPluginDesc plugin_desc = {
|
||||
GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"smpte",
|
||||
plugin_init
|
||||
};
|
||||
|
63
gst/smpte/gstsmpte.h
Normal file
63
gst/smpte/gstsmpte.h
Normal file
|
@ -0,0 +1,63 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* 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_SMPTE_H__
|
||||
#define __GST_SMPTE_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gstmask.h>
|
||||
|
||||
#define GST_TYPE_SMPTE \
|
||||
(gst_smpte_get_type())
|
||||
#define GST_SMPTE(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SMPTE,GstSMPTE))
|
||||
#define GST_SMPTE_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SMPTE,GstSMPTE))
|
||||
#define GST_IS_SMPTE(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SMPTE))
|
||||
#define GST_IS_SMPTE_CLASS(obj) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SMPTE))
|
||||
|
||||
typedef struct _GstSMPTE GstSMPTE;
|
||||
typedef struct _GstSMPTEClass GstSMPTEClass;
|
||||
|
||||
struct _GstSMPTE {
|
||||
GstElement element;
|
||||
|
||||
gint format;
|
||||
gint width;
|
||||
gint height;
|
||||
|
||||
gint duration;
|
||||
gint position;
|
||||
|
||||
GstPad *srcpad,
|
||||
*sinkpad1,
|
||||
*sinkpad2;
|
||||
|
||||
gint type;
|
||||
GstMask *mask;
|
||||
};
|
||||
|
||||
struct _GstSMPTEClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
#endif /* __GST_SMPTE_H__ */
|
51
gst/smpte/paint.c
Normal file
51
gst/smpte/paint.c
Normal file
|
@ -0,0 +1,51 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "paint.h"
|
||||
|
||||
void
|
||||
gst_smpte_paint_rect (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
|
||||
{
|
||||
guint8 *d = dest + stride * y + x;
|
||||
gint i;
|
||||
|
||||
for (i = 0; i < h; i++) {
|
||||
memset (d, color, w);
|
||||
d += stride;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
gst_smpte_paint_rect_s (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
|
||||
{
|
||||
guint8 *d = dest + stride * y + x;
|
||||
gint i, j;
|
||||
gint border = 100;
|
||||
|
||||
for (i = 0; i < h; i++) {
|
||||
if (w - border > 0) {
|
||||
memset (d, color, w - border);
|
||||
}
|
||||
|
||||
for (j = 0; j < border - w; j++) {
|
||||
*(d+w+j) = (color*(border-j)/border);
|
||||
}
|
||||
d += stride;
|
||||
}
|
||||
}
|
35
gst/smpte/paint.h
Normal file
35
gst/smpte/paint.h
Normal file
|
@ -0,0 +1,35 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
*
|
||||
* 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_SMPTE_PAINT_H__
|
||||
#define __GST_SMPTE_PAINT_H__
|
||||
|
||||
#include <glib.h>
|
||||
|
||||
void gst_smpte_paint_rect (guint8 *dest, gint stride,
|
||||
gint x, gint y, gint w, gint h,
|
||||
guint8 color);
|
||||
|
||||
void gst_smpte_paint_rect_s (guint8 *dest, gint stride,
|
||||
gint x, gint y, gint w, gint h,
|
||||
guint8 color);
|
||||
|
||||
|
||||
|
||||
#endif /* __GST_SMPTE_PAINT_H__ */
|
Loading…
Reference in a new issue