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Port pango-based textoverlay, timeoverlay and textrender to 0.9 and add background shading and text wrapping modes. M...
Original commit message from CVS: * configure.ac: * ext/Makefile.am: * ext/pango/Makefile.am: * ext/pango/gstclockoverlay.c: (gst_clock_overlay_base_init), (gst_clock_overlay_render_time), (gst_clock_overlay_get_text), (gst_clock_overlay_class_init), (gst_clock_overlay_init): * ext/pango/gstclockoverlay.h: * ext/pango/gsttextoverlay.c: (gst_text_overlay_base_init), (gst_text_overlay_get_text), (gst_text_overlay_class_init), (gst_text_overlay_finalize), (gst_text_overlay_init), (gst_text_overlay_update_wrap_mode), (gst_text_overlay_setcaps), (gst_text_overlay_text_pad_linked), (gst_text_overlay_text_pad_unlinked), (gst_text_overlay_set_property), (gst_text_overlay_getcaps), (gst_text_overlay_shade_y), (gst_text_overlay_blit_yuv420), (gst_text_overlay_resize_bitmap), (gst_text_overlay_render_text), (gst_text_overlay_push_frame), (gst_text_overlay_pop_video), (gst_text_overlay_pop_text), (gst_text_overlay_collected), (gst_text_overlay_change_state), (plugin_init): * ext/pango/gsttextoverlay.h: * ext/pango/gsttimeoverlay.c: (gst_time_overlay_base_init), (gst_time_overlay_render_time), (gst_time_overlay_get_text), (gst_time_overlay_class_init), (gst_time_overlay_init): * ext/pango/gsttimeoverlay.h: Port pango-based textoverlay, timeoverlay and textrender to 0.9 and add background shading and text wrapping modes. Make timoverlay derive from textoverlay. Also add new clockoverlay element.
This commit is contained in:
parent
9211681208
commit
b1d87b1ffb
10 changed files with 1150 additions and 891 deletions
31
ChangeLog
31
ChangeLog
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@ -1,3 +1,34 @@
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2005-11-30 Tim-Philipp Müller <tim at centricular dot net>
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* configure.ac:
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* ext/Makefile.am:
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* ext/pango/Makefile.am:
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* ext/pango/gstclockoverlay.c: (gst_clock_overlay_base_init),
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(gst_clock_overlay_render_time), (gst_clock_overlay_get_text),
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(gst_clock_overlay_class_init), (gst_clock_overlay_init):
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* ext/pango/gstclockoverlay.h:
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* ext/pango/gsttextoverlay.c: (gst_text_overlay_base_init),
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(gst_text_overlay_get_text), (gst_text_overlay_class_init),
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(gst_text_overlay_finalize), (gst_text_overlay_init),
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(gst_text_overlay_update_wrap_mode), (gst_text_overlay_setcaps),
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(gst_text_overlay_text_pad_linked),
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(gst_text_overlay_text_pad_unlinked),
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(gst_text_overlay_set_property), (gst_text_overlay_getcaps),
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(gst_text_overlay_shade_y), (gst_text_overlay_blit_yuv420),
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(gst_text_overlay_resize_bitmap), (gst_text_overlay_render_text),
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(gst_text_overlay_push_frame), (gst_text_overlay_pop_video),
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(gst_text_overlay_pop_text), (gst_text_overlay_collected),
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(gst_text_overlay_change_state), (plugin_init):
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* ext/pango/gsttextoverlay.h:
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* ext/pango/gsttimeoverlay.c: (gst_time_overlay_base_init),
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(gst_time_overlay_render_time), (gst_time_overlay_get_text),
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(gst_time_overlay_class_init), (gst_time_overlay_init):
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* ext/pango/gsttimeoverlay.h:
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Port pango-based textoverlay, timeoverlay and textrender to 0.9
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and add background shading and text wrapping modes. Make
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timoverlay derive from textoverlay. Also add new clockoverlay
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element.
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2005-11-30 Julien MOUTTE <julien@moutte.net>
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* gst/udp/Makefile.am: Moved to netbuffer.
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10
configure.ac
10
configure.ac
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@ -413,6 +413,15 @@ GST_CHECK_FEATURE(DV1394, [raw1394 and avc1394 library], dv1394src, [
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fi
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])
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dnl *** pango ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_PANGO, true)
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GST_CHECK_FEATURE(PANGO, [pango], pango, [
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PKG_CHECK_MODULES(PANGO, pango pangoft2,
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HAVE_PANGO="yes", HAVE_PANGO="no")
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AC_SUBST(PANGO_CFLAGS)
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AC_SUBST(PANGO_LIBS)
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])
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dnl *** shout2 ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_SHOUT2, true)
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GST_CHECK_FEATURE(SHOUT2, [shout2 plug-in], shout2send, [
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@ -557,6 +566,7 @@ ext/gconf/Makefile
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ext/ladspa/Makefile
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ext/libcaca/Makefile
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ext/libpng/Makefile
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ext/pango/Makefile
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ext/raw1394/Makefile
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ext/shout2/Makefile
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ext/speex/Makefile
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@ -76,11 +76,11 @@ endif
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MIKMOD_DIR =
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# endif
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# if USE_PANGO
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# PANGO_DIR = pango
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# else
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if USE_PANGO
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PANGO_DIR = pango
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else
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PANGO_DIR =
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# endif
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endif
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if USE_DV1394
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DV1394_DIR = raw1394
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@ -130,6 +130,7 @@ DIST_SUBDIRS = \
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ladspa \
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libcaca \
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libpng \
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pango \
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raw1394 \
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shout2 \
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speex
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@ -1,16 +1,28 @@
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#PANGO_CFLAGS = -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/freetype2
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#PANGO_LDFLAGS = -Wl,--export-dynamic -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
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plugin_LTLIBRARIES = libgsttimeoverlay.la libgsttextoverlay.la
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plugin_LTLIBRARIES = libgstpango.la
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noinst_HEADERS = gsttimeoverlay.h gsttextoverlay.h
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noinst_HEADERS = \
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gstclockoverlay.h \
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gsttextoverlay.h \
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gsttextrender.h \
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gsttimeoverlay.h
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libgsttimeoverlay_la_SOURCES = gsttimeoverlay.c
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libgsttimeoverlay_la_CFLAGS = $(GST_CFLAGS) $(PANGO_CFLAGS) -I$(top_srcdir)/gst/videofilter
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libgsttimeoverlay_la_LIBADD = $(GST_LIBS) $(PANGO_LIBS) -lm
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libgsttimeoverlay_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstpango_la_SOURCES = \
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gstclockoverlay.c \
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gsttextoverlay.c \
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gsttextrender.c \
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gsttimeoverlay.c
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libgsttextoverlay_la_SOURCES = gsttextoverlay.c
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libgsttextoverlay_la_CFLAGS = $(GST_CFLAGS) $(PANGO_CFLAGS)
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libgsttextoverlay_la_LIBADD = $(GST_LIBS) $(PANGO_LIBS)
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libgsttextoverlay_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstpango_la_CFLAGS = \
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$(GST_PLUGINS_BASE_CFLAGS) \
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$(GST_BASE_CFLAGS) \
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$(GST_CFLAGS) \
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$(PANGO_CFLAGS)
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libgstpango_la_LIBADD = \
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$(GST_BASE_LIBS) \
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$(GST_LIBS) \
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$(PANGO_LIBS)
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libgstpango_la_LDFLAGS = \
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$(GST_PLUGIN_LDFLAGS)
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119
ext/pango/gstclockoverlay.c
Normal file
119
ext/pango/gstclockoverlay.c
Normal file
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@ -0,0 +1,119 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2005> Tim-Philipp Müller <tim@centricular.net>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gstclockoverlay.h>
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#include <gst/video/video.h>
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#include <time.h>
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static GstElementDetails clock_overlay_details =
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GST_ELEMENT_DETAILS ("Time Overlay",
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"Filter/Editor/Video",
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"Overlays the time on a video stream",
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"Tim-Philipp Müller <tim@centricular.net>");
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GST_BOILERPLATE (GstClockOverlay, gst_clock_overlay, GstTextOverlay,
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GST_TYPE_TEXT_OVERLAY)
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static void gst_clock_overlay_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (element_class, &clock_overlay_details);
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}
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static gchar *
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gst_clock_overlay_render_time (GstClockOverlay * overlay)
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{
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struct tm t;
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time_t now;
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now = time (NULL);
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if (localtime_r (&now, &t) == NULL)
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return g_strdup ("--:--:--");
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return g_strdup_printf ("%02u:%02u:%02u", t.tm_hour, t.tm_min, t.tm_sec);
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}
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static gchar *
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gst_clock_overlay_get_text (GstTextOverlay * overlay, GstBuffer * video_frame)
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{
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gchar *time_str, *txt, *ret;
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overlay->need_render = TRUE;
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GST_OBJECT_LOCK (overlay);
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txt = g_strdup (overlay->default_text);
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GST_OBJECT_UNLOCK (overlay);
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time_str = gst_clock_overlay_render_time (GST_CLOCK_OVERLAY (overlay));
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if (txt != NULL && *txt != '\0') {
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ret = g_strdup_printf ("%s %s", txt, time_str);
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} else {
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ret = time_str;
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time_str = NULL;
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}
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g_free (txt);
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g_free (time_str);
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return ret;
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}
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static void
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gst_clock_overlay_class_init (GstClockOverlayClass * klass)
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{
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GstTextOverlayClass *gsttextoverlay_class;
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gsttextoverlay_class = (GstTextOverlayClass *) klass;
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gsttextoverlay_class->get_text = gst_clock_overlay_get_text;
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}
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static void
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gst_clock_overlay_init (GstClockOverlay * overlay, GstClockOverlayClass * klass)
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{
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PangoFontDescription *font_description;
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GstTextOverlay *textoverlay;
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PangoContext *context;
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textoverlay = GST_TEXT_OVERLAY (overlay);
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context = GST_TEXT_OVERLAY_CLASS (klass)->pango_context;
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pango_context_set_language (context, pango_language_from_string ("en_US"));
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pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
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font_description = pango_font_description_new ();
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pango_font_description_set_family (font_description, g_strdup ("Monospace"));
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pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
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pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
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pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
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pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
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pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
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pango_context_set_font_description (context, font_description);
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pango_font_description_free (font_description);
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textoverlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
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textoverlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
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}
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56
ext/pango/gstclockoverlay.h
Normal file
56
ext/pango/gstclockoverlay.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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* Copyright (C) <2005> Tim-Philipp Müller <tim@centricular.net>
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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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#ifndef __GST_CLOCK_OVERLAY_H__
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#define __GST_CLOCK_OVERLAY_H__
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#include "gsttextoverlay.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CLOCK_OVERLAY \
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(gst_clock_overlay_get_type())
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#define GST_CLOCK_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CLOCK_OVERLAY,GstClockOverlay))
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#define GST_CLOCK_OVERLAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CLOCK_OVERLAY,GstClockOverlayClass))
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#define GST_IS_CLOCK_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CLOCK_OVERLAY))
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#define GST_IS_CLOCK_OVERLAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CLOCK_OVERLAY))
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typedef struct _GstClockOverlay GstClockOverlay;
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typedef struct _GstClockOverlayClass GstClockOverlayClass;
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struct _GstClockOverlay {
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GstTextOverlay textoverlay;
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};
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struct _GstClockOverlayClass {
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GstTextOverlayClass parent_class;
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};
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GType gst_clock_overlay_get_type (void);
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G_END_DECLS
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#endif /* __GST_CLOCK_OVERLAY_H__ */
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File diff suppressed because it is too large
Load diff
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@ -1,29 +1,30 @@
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/* -*- Mode: C; c-file-style: "stroustrup" -*- */
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#ifndef __GST_TEXTOVERLAY_H__
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#define __GST_TEXTOVERLAY_H__
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#ifndef __GST_TEXT_OVERLAY_H__
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#define __GST_TEXT_OVERLAY_H__
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include <pango/pangoft2.h>
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G_BEGIN_DECLS
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#define GST_TYPE_TEXTOVERLAY (gst_textoverlay_get_type())
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#define GST_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
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GST_TYPE_TEXTOVERLAY, GstTextOverlay))
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#define GST_TEXTOVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
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GST_TYPE_ULAW, GstTextOverlay))
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#define GST_TEXTOVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
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GST_TYPE_TEXTOVERLAY, GstTextOverlayClass))
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#define GST_IS_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
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GST_TYPE_TEXTOVERLAY))
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#define GST_IS_TEXTOVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),\
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GST_TYPE_TEXTOVERLAY))
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#define GST_TYPE_TEXT_OVERLAY (gst_text_overlay_get_type())
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#define GST_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
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GST_TYPE_TEXT_OVERLAY, GstTextOverlay))
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#define GST_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
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GST_TYPE_TEXT_OVERLAY,GstTextOverlayClass))
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#define GST_TEXT_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
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GST_TYPE_TEXT_OVERLAY, GstTextOverlayClass))
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#define GST_IS_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
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GST_TYPE_TEXT_OVERLAY))
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#define GST_IS_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
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GST_TYPE_TEXT_OVERLAY))
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typedef struct _GstTextOverlay GstTextOverlay;
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typedef struct _GstTextOverlayClass GstTextOverlayClass;
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typedef enum _GstTextOverlayVAlign GstTextOverlayVAlign;
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typedef enum _GstTextOverlayHAlign GstTextOverlayHAlign;
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typedef enum _GstTextOverlayVAlign GstTextOverlayVAlign;
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typedef enum _GstTextOverlayHAlign GstTextOverlayHAlign;
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typedef enum _GstTextOverlayWrapMode GstTextOverlayWrapMode;
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enum _GstTextOverlayVAlign {
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GST_TEXT_OVERLAY_VALIGN_BASELINE,
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@ -37,37 +38,62 @@ enum _GstTextOverlayHAlign {
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GST_TEXT_OVERLAY_HALIGN_RIGHT
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};
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enum _GstTextOverlayWrapMode {
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GST_TEXT_OVERLAY_WRAP_MODE_NONE = -1,
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GST_TEXT_OVERLAY_WRAP_MODE_WORD = PANGO_WRAP_WORD,
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GST_TEXT_OVERLAY_WRAP_MODE_CHAR = PANGO_WRAP_CHAR,
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GST_TEXT_OVERLAY_WRAP_MODE_WORD_CHAR = PANGO_WRAP_WORD_CHAR
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};
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struct _GstTextOverlay {
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GstElement element;
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GstElement element;
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GstPad *video_sinkpad;
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GstPad *text_sinkpad;
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GstPad *srcpad;
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gint width;
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gint height;
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PangoLayout *layout;
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FT_Bitmap bitmap;
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gint bitmap_buffer_size;
|
||||
gint baseline_y;
|
||||
GstTextOverlayVAlign valign;
|
||||
GstTextOverlayHAlign halign;
|
||||
gint x0;
|
||||
gint y0;
|
||||
GstData *current_data;
|
||||
GstData *next_data;
|
||||
gchar *default_text;
|
||||
gboolean need_render;
|
||||
GstPad *video_sinkpad;
|
||||
GstPad *text_sinkpad;
|
||||
GstPad *srcpad;
|
||||
|
||||
GstCollectPads *collect;
|
||||
GstCollectData *video_collect_data;
|
||||
GstCollectData *text_collect_data;
|
||||
|
||||
gint width;
|
||||
gint height;
|
||||
gint fps_n;
|
||||
gint fps_d;
|
||||
|
||||
GstTextOverlayVAlign valign;
|
||||
GstTextOverlayHAlign halign;
|
||||
GstTextOverlayWrapMode wrap_mode;
|
||||
|
||||
gint xpad;
|
||||
gint ypad;
|
||||
gint deltax;
|
||||
gint deltay;
|
||||
gchar *default_text;
|
||||
gboolean want_shading;
|
||||
|
||||
PangoLayout *layout;
|
||||
FT_Bitmap bitmap;
|
||||
gint bitmap_buffer_size;
|
||||
gint baseline_y;
|
||||
|
||||
gboolean need_render;
|
||||
|
||||
gint shading_value; /* for timeoverlay subclass */
|
||||
};
|
||||
|
||||
struct _GstTextOverlayClass {
|
||||
GstElementClass parent_class;
|
||||
|
||||
PangoContext *pango_context;
|
||||
|
||||
gchar * (*get_text) (GstTextOverlay *overlay, GstBuffer *video_frame);
|
||||
|
||||
};
|
||||
|
||||
GType gst_textoverlay_get_type(void) G_GNUC_CONST;
|
||||
GType gst_text_overlay_get_type(void) G_GNUC_CONST;
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_TEXTOVERLAY_H */
|
||||
#endif /* __GST_TEXT_OVERLAY_H */
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* Copyright (C) <2003> David Schleef <ds@schleef.org>
|
||||
* Copyright (C) <2005> Tim-Philipp Müller <tim@centricular.net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
|
@ -18,215 +18,99 @@
|
|||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
/* portions derived from:
|
||||
* Pango
|
||||
* pangoft2topgm.c: Example program to view a UTF-8 encoding file
|
||||
* using Pango to render result.
|
||||
*
|
||||
* Copyright (C) 1999 Red Hat Software
|
||||
* Copyright (C) 2001 Sun Microsystems
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file was (probably) generated from gsttimeoverlay.c,
|
||||
* gsttimeoverlay.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
/*#define DEBUG_ENABLED */
|
||||
#include <gst/video/video.h>
|
||||
|
||||
#include <gsttimeoverlay.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
#include <pango/pango.h>
|
||||
#include <pango/pangoft2.h>
|
||||
|
||||
static GstElementDetails time_overlay_details =
|
||||
GST_ELEMENT_DETAILS ("Time Overlay",
|
||||
"Filter/Editor/Video",
|
||||
"Overlays the time on a video stream",
|
||||
"Tim-Philipp Müller <tim@centricular.net>");
|
||||
|
||||
/* GstTimeoverlay signals and args */
|
||||
enum
|
||||
GST_BOILERPLATE (GstTimeOverlay, gst_time_overlay, GstTextOverlay,
|
||||
GST_TYPE_TEXT_OVERLAY)
|
||||
|
||||
static void gst_time_overlay_base_init (gpointer g_class)
|
||||
{
|
||||
/* FILL ME */
|
||||
LAST_SIGNAL
|
||||
};
|
||||
|
||||
enum
|
||||
{
|
||||
ARG_0
|
||||
/* FILL ME */
|
||||
};
|
||||
|
||||
static void gst_timeoverlay_base_init (gpointer g_class);
|
||||
static void gst_timeoverlay_class_init (gpointer g_class, gpointer class_data);
|
||||
static void gst_timeoverlay_init (GTypeInstance * instance, gpointer g_class);
|
||||
|
||||
static void gst_timeoverlay_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_timeoverlay_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static void gst_timeoverlay_planar411 (GstVideofilter * videofilter, void *dest,
|
||||
void *src);
|
||||
static void gst_timeoverlay_setup (GstVideofilter * videofilter);
|
||||
|
||||
GType
|
||||
gst_timeoverlay_get_type (void)
|
||||
{
|
||||
static GType timeoverlay_type = 0;
|
||||
|
||||
if (!timeoverlay_type) {
|
||||
static const GTypeInfo timeoverlay_info = {
|
||||
sizeof (GstTimeoverlayClass),
|
||||
gst_timeoverlay_base_init,
|
||||
NULL,
|
||||
gst_timeoverlay_class_init,
|
||||
NULL,
|
||||
NULL,
|
||||
sizeof (GstTimeoverlay),
|
||||
0,
|
||||
gst_timeoverlay_init,
|
||||
};
|
||||
|
||||
timeoverlay_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
|
||||
"GstTimeoverlay", &timeoverlay_info, 0);
|
||||
}
|
||||
return timeoverlay_type;
|
||||
}
|
||||
|
||||
static GstVideofilterFormat gst_timeoverlay_formats[] = {
|
||||
{"I420", 12, gst_timeoverlay_planar411,},
|
||||
};
|
||||
|
||||
|
||||
static void
|
||||
gst_timeoverlay_base_init (gpointer g_class)
|
||||
{
|
||||
static GstElementDetails timeoverlay_details =
|
||||
GST_ELEMENT_DETAILS ("Time Overlay",
|
||||
"Filter/Editor/Video",
|
||||
"Overlays the time on a video stream",
|
||||
"David Schleef <ds@schleef.org>");
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
||||
GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
|
||||
int i;
|
||||
|
||||
gst_element_class_set_details (element_class, &timeoverlay_details);
|
||||
gst_element_class_set_details (element_class, &time_overlay_details);
|
||||
}
|
||||
|
||||
for (i = 0; i < G_N_ELEMENTS (gst_timeoverlay_formats); i++) {
|
||||
gst_videofilter_class_add_format (videofilter_class,
|
||||
gst_timeoverlay_formats + i);
|
||||
static gchar *
|
||||
gst_time_overlay_render_time (GstTimeOverlay * overlay, GstClockTime time)
|
||||
{
|
||||
guint hours, mins, secs, msecs;
|
||||
|
||||
if (!GST_CLOCK_TIME_IS_VALID (time))
|
||||
return g_strdup ("");
|
||||
|
||||
hours = (guint) (time / (GST_SECOND * 60 * 60));
|
||||
mins = (guint) ((time / (GST_SECOND * 60)) % 60);
|
||||
secs = (guint) ((time / GST_SECOND) % 60);
|
||||
msecs = (guint) ((time % GST_SECOND) / (1000 * 1000));
|
||||
|
||||
return g_strdup_printf ("%u:%02u:%02u.%03u", hours, mins, secs, msecs);
|
||||
}
|
||||
|
||||
static gchar *
|
||||
gst_time_overlay_get_text (GstTextOverlay * overlay, GstBuffer * video_frame)
|
||||
{
|
||||
GstClockTime time = GST_BUFFER_TIMESTAMP (video_frame);
|
||||
gchar *time_str, *txt, *ret;
|
||||
|
||||
overlay->need_render = TRUE;
|
||||
|
||||
if (!GST_CLOCK_TIME_IS_VALID (time)) {
|
||||
GST_DEBUG ("buffer without valid timestamp");
|
||||
return g_strdup ("");
|
||||
}
|
||||
|
||||
gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
|
||||
}
|
||||
GST_DEBUG ("buffer with timestamp %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
|
||||
|
||||
static void
|
||||
gst_timeoverlay_class_init (gpointer g_class, gpointer class_data)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstVideofilterClass *videofilter_class;
|
||||
GST_OBJECT_LOCK (overlay);
|
||||
txt = g_strdup (overlay->default_text);
|
||||
GST_OBJECT_UNLOCK (overlay);
|
||||
|
||||
gobject_class = G_OBJECT_CLASS (g_class);
|
||||
videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
|
||||
|
||||
#if 0
|
||||
g_object_class_install_property (gobject_class, ARG_METHOD,
|
||||
g_param_spec_enum ("method", "method", "method",
|
||||
GST_TYPE_TIMEOVERLAY_METHOD, GST_TIMEOVERLAY_METHOD_1,
|
||||
G_PARAM_READWRITE));
|
||||
#endif
|
||||
|
||||
gobject_class->set_property = gst_timeoverlay_set_property;
|
||||
gobject_class->get_property = gst_timeoverlay_get_property;
|
||||
|
||||
videofilter_class->setup = gst_timeoverlay_setup;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_timeoverlay_init (GTypeInstance * instance, gpointer g_class)
|
||||
{
|
||||
GstTimeoverlay *timeoverlay = GST_TIMEOVERLAY (instance);
|
||||
GstVideofilter *videofilter;
|
||||
|
||||
GST_DEBUG ("gst_timeoverlay_init");
|
||||
|
||||
videofilter = GST_VIDEOFILTER (timeoverlay);
|
||||
|
||||
/* do stuff */
|
||||
}
|
||||
|
||||
static void
|
||||
gst_timeoverlay_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstTimeoverlay *src;
|
||||
|
||||
g_return_if_fail (GST_IS_TIMEOVERLAY (object));
|
||||
src = GST_TIMEOVERLAY (object);
|
||||
|
||||
GST_DEBUG ("gst_timeoverlay_set_property");
|
||||
switch (prop_id) {
|
||||
#if 0
|
||||
case ARG_METHOD:
|
||||
src->method = g_value_get_enum (value);
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
break;
|
||||
time_str = gst_time_overlay_render_time (GST_TIME_OVERLAY (overlay), time);
|
||||
if (txt != NULL && *txt != '\0') {
|
||||
ret = g_strdup_printf ("%s %s", txt, time_str);
|
||||
} else {
|
||||
ret = time_str;
|
||||
time_str = NULL;
|
||||
}
|
||||
|
||||
g_free (txt);
|
||||
g_free (time_str);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_timeoverlay_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
gst_time_overlay_class_init (GstTimeOverlayClass * klass)
|
||||
{
|
||||
GstTimeoverlay *src;
|
||||
GstTextOverlayClass *gsttextoverlay_class;
|
||||
|
||||
g_return_if_fail (GST_IS_TIMEOVERLAY (object));
|
||||
src = GST_TIMEOVERLAY (object);
|
||||
gsttextoverlay_class = (GstTextOverlayClass *) klass;
|
||||
|
||||
switch (prop_id) {
|
||||
#if 0
|
||||
case ARG_METHOD:
|
||||
g_value_set_enum (value, src->method);
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
gsttextoverlay_class->get_text = gst_time_overlay_get_text;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
static void
|
||||
gst_time_overlay_init (GstTimeOverlay * overlay, GstTimeOverlayClass * klass)
|
||||
{
|
||||
if (!gst_library_load ("gstvideofilter"))
|
||||
return FALSE;
|
||||
|
||||
return gst_element_register (plugin, "timeoverlay", GST_RANK_NONE,
|
||||
GST_TYPE_TIMEOVERLAY);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"timeoverlay",
|
||||
"Time overlay", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME,
|
||||
GST_PACKAGE_ORIGIN)
|
||||
|
||||
static void gst_timeoverlay_setup (GstVideofilter * videofilter)
|
||||
{
|
||||
GstTimeoverlay *timeoverlay;
|
||||
PangoFontDescription *font_description;
|
||||
GstTextOverlay *textoverlay;
|
||||
PangoContext *context;
|
||||
|
||||
g_return_if_fail (GST_IS_TIMEOVERLAY (videofilter));
|
||||
timeoverlay = GST_TIMEOVERLAY (videofilter);
|
||||
textoverlay = GST_TEXT_OVERLAY (overlay);
|
||||
|
||||
/* if any setup needs to be done, do it here */
|
||||
|
||||
/* what does this affect? */
|
||||
context = pango_ft2_get_context (100, 100);
|
||||
context = GST_TEXT_OVERLAY_CLASS (klass)->pango_context;
|
||||
|
||||
pango_context_set_language (context, pango_language_from_string ("en_US"));
|
||||
pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
|
||||
|
@ -237,91 +121,10 @@ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|||
pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
|
||||
pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL);
|
||||
pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
|
||||
pango_font_description_set_size (font_description, 12 * PANGO_SCALE);
|
||||
|
||||
pango_font_description_set_size (font_description, 18 * PANGO_SCALE);
|
||||
pango_context_set_font_description (context, font_description);
|
||||
pango_font_description_free (font_description);
|
||||
|
||||
timeoverlay->context = context;
|
||||
timeoverlay->font_description = font_description;
|
||||
|
||||
}
|
||||
|
||||
static char *
|
||||
gst_timeoverlay_print_smpte_time (guint64 time)
|
||||
{
|
||||
int hours;
|
||||
int minutes;
|
||||
int seconds;
|
||||
int ms;
|
||||
double x;
|
||||
|
||||
x = rint ((time + 500000) * 1e-6);
|
||||
|
||||
hours = floor (x / (60 * 60 * 1000));
|
||||
x -= hours * 60 * 60 * 1000;
|
||||
minutes = floor (x / (60 * 1000));
|
||||
x -= minutes * 60 * 1000;
|
||||
seconds = floor (x / (1000));
|
||||
x -= seconds * 1000;
|
||||
ms = rint (x);
|
||||
|
||||
return g_strdup_printf ("%02d:%02d:%02d.%03d", hours, minutes, seconds, ms);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_timeoverlay_planar411 (GstVideofilter * videofilter, void *dest, void *src)
|
||||
{
|
||||
GstTimeoverlay *timeoverlay;
|
||||
int width;
|
||||
int height;
|
||||
PangoRectangle logical_rect;
|
||||
PangoLayout *layout;
|
||||
int b_height, b_width;
|
||||
FT_Bitmap bitmap;
|
||||
char *string;
|
||||
int i;
|
||||
|
||||
g_return_if_fail (GST_IS_TIMEOVERLAY (videofilter));
|
||||
timeoverlay = GST_TIMEOVERLAY (videofilter);
|
||||
|
||||
width = gst_videofilter_get_input_width (videofilter);
|
||||
height = gst_videofilter_get_input_height (videofilter);
|
||||
|
||||
width = gst_videofilter_get_input_width (videofilter);
|
||||
height = gst_videofilter_get_input_height (videofilter);
|
||||
|
||||
layout = pango_layout_new (timeoverlay->context);
|
||||
string =
|
||||
gst_timeoverlay_print_smpte_time (GST_BUFFER_TIMESTAMP (videofilter->
|
||||
in_buf));
|
||||
pango_layout_set_text (layout, string, strlen (string));
|
||||
g_free (string);
|
||||
|
||||
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
|
||||
pango_layout_set_width (layout, -1);
|
||||
|
||||
pango_layout_get_extents (layout, NULL, &logical_rect);
|
||||
b_height = PANGO_PIXELS (logical_rect.height);
|
||||
b_width = PANGO_PIXELS (logical_rect.width);
|
||||
|
||||
//hheight = 20;
|
||||
|
||||
memcpy (dest, src, videofilter->from_buf_size);
|
||||
|
||||
for (i = 0; i < b_height; i++) {
|
||||
memset (dest + i * width, 0, b_width);
|
||||
}
|
||||
for (i = 0; i < b_height / 2; i++) {
|
||||
memset (dest + width * height + i * (width / 2), 128, b_width / 2);
|
||||
memset (dest + width * height + (width / 2) * (height / 2) +
|
||||
i * (width / 2), 128, b_width / 2);
|
||||
}
|
||||
bitmap.rows = b_height;
|
||||
bitmap.width = b_width;
|
||||
bitmap.pitch = width;
|
||||
bitmap.buffer = dest;
|
||||
bitmap.num_grays = 256;
|
||||
bitmap.pixel_mode = ft_pixel_mode_grays;
|
||||
|
||||
pango_ft2_render_layout (&bitmap, layout, 0, 0);
|
||||
textoverlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
|
||||
textoverlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
|
||||
}
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* Copyright (C) <2005> Tim-Philipp Müller <tim@centricular.net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
|
@ -18,47 +19,38 @@
|
|||
*/
|
||||
|
||||
|
||||
#ifndef __GST_TIMEOVERLAY_H__
|
||||
#define __GST_TIMEOVERLAY_H__
|
||||
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <pango/pango.h>
|
||||
|
||||
#include "gstvideofilter.h"
|
||||
#ifndef __GST_TIME_OVERLAY_H__
|
||||
#define __GST_TIME_OVERLAY_H__
|
||||
|
||||
#include "gsttextoverlay.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_TIMEOVERLAY \
|
||||
(gst_timeoverlay_get_type())
|
||||
#define GST_TIMEOVERLAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TIMEOVERLAY,GstTimeoverlay))
|
||||
#define GST_TIMEOVERLAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TIMEOVERLAY,GstTimeoverlayClass))
|
||||
#define GST_IS_TIMEOVERLAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TIMEOVERLAY))
|
||||
#define GST_IS_TIMEOVERLAY_CLASS(obj) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TIMEOVERLAY))
|
||||
#define GST_TYPE_TIME_OVERLAY \
|
||||
(gst_time_overlay_get_type())
|
||||
#define GST_TIME_OVERLAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TIME_OVERLAY,GstTimeOverlay))
|
||||
#define GST_TIME_OVERLAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TIME_OVERLAY,GstTimeOverlayClass))
|
||||
#define GST_IS_TIME_OVERLAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TIME_OVERLAY))
|
||||
#define GST_IS_TIME_OVERLAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TIME_OVERLAY))
|
||||
|
||||
typedef struct _GstTimeoverlay GstTimeoverlay;
|
||||
typedef struct _GstTimeoverlayClass GstTimeoverlayClass;
|
||||
|
||||
struct _GstTimeoverlay {
|
||||
GstVideofilter videofilter;
|
||||
|
||||
PangoFontDescription *font_description;
|
||||
PangoContext *context;
|
||||
typedef struct _GstTimeOverlay GstTimeOverlay;
|
||||
typedef struct _GstTimeOverlayClass GstTimeOverlayClass;
|
||||
|
||||
struct _GstTimeOverlay {
|
||||
GstTextOverlay textoverlay;
|
||||
};
|
||||
|
||||
struct _GstTimeoverlayClass {
|
||||
GstVideofilterClass parent_class;
|
||||
struct _GstTimeOverlayClass {
|
||||
GstTextOverlayClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_timeoverlay_get_type(void);
|
||||
GType gst_time_overlay_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_TIMEOVERLAY_H__ */
|
||||
#endif /* __GST_TIME_OVERLAY_H__ */
|
||||
|
||||
|
|
Loading…
Reference in a new issue