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Port pango-based textoverlay, timeoverlay and textrender to 0.9 and add background shading and text wrapping modes. M...

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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:
Tim-Philipp Müller 2005-11-30 13:20:57 +00:00
parent 9211681208
commit b1d87b1ffb
10 changed files with 1150 additions and 891 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
ChangeLog
View file

@ -1,3 +1,34 @@
2005-11-30 Tim-Philipp Müller <tim at centricular dot net>
* 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.
2005-11-30 Julien MOUTTE <julien@moutte.net>
* gst/udp/Makefile.am: Moved to netbuffer.

10
configure.ac
View file

@ -413,6 +413,15 @@ GST_CHECK_FEATURE(DV1394, [raw1394 and avc1394 library], dv1394src, [
fi
])
dnl *** pango ***
translit(dnm, m, l) AM_CONDITIONAL(USE_PANGO, true)
GST_CHECK_FEATURE(PANGO, [pango], pango, [
PKG_CHECK_MODULES(PANGO, pango pangoft2,
HAVE_PANGO="yes", HAVE_PANGO="no")
AC_SUBST(PANGO_CFLAGS)
AC_SUBST(PANGO_LIBS)
])
dnl *** shout2 ***
translit(dnm, m, l) AM_CONDITIONAL(USE_SHOUT2, true)
GST_CHECK_FEATURE(SHOUT2, [shout2 plug-in], shout2send, [
@ -557,6 +566,7 @@ ext/gconf/Makefile
ext/ladspa/Makefile
ext/libcaca/Makefile
ext/libpng/Makefile
ext/pango/Makefile
ext/raw1394/Makefile
ext/shout2/Makefile
ext/speex/Makefile

9
ext/Makefile.am
View file

@ -76,11 +76,11 @@ endif
MIKMOD_DIR =
# endif
# if USE_PANGO
# PANGO_DIR = pango
# else
if USE_PANGO
PANGO_DIR = pango
else
PANGO_DIR =
# endif
endif
if USE_DV1394
DV1394_DIR = raw1394
@ -130,6 +130,7 @@ DIST_SUBDIRS = \
ladspa \
libcaca \
libpng \
pango \
raw1394 \
shout2 \
speex

36
ext/pango/Makefile.am
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@ -1,16 +1,28 @@
#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
#PANGO_LDFLAGS = -Wl,--export-dynamic -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
plugin_LTLIBRARIES = libgsttimeoverlay.la libgsttextoverlay.la
plugin_LTLIBRARIES = libgstpango.la
noinst_HEADERS = gsttimeoverlay.h gsttextoverlay.h
noinst_HEADERS = \
gstclockoverlay.h \
gsttextoverlay.h \
gsttextrender.h \
gsttimeoverlay.h
libgsttimeoverlay_la_SOURCES = gsttimeoverlay.c
libgsttimeoverlay_la_CFLAGS = $(GST_CFLAGS) $(PANGO_CFLAGS) -I$(top_srcdir)/gst/videofilter
libgsttimeoverlay_la_LIBADD = $(GST_LIBS) $(PANGO_LIBS) -lm
libgsttimeoverlay_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstpango_la_SOURCES = \
gstclockoverlay.c \
gsttextoverlay.c \
gsttextrender.c \
gsttimeoverlay.c
libgsttextoverlay_la_SOURCES = gsttextoverlay.c
libgsttextoverlay_la_CFLAGS = $(GST_CFLAGS) $(PANGO_CFLAGS)
libgsttextoverlay_la_LIBADD = $(GST_LIBS) $(PANGO_LIBS)
libgsttextoverlay_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstpango_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_CFLAGS) \
$(PANGO_CFLAGS)
libgstpango_la_LIBADD = \
$(GST_BASE_LIBS) \
$(GST_LIBS) \
$(PANGO_LIBS)
libgstpango_la_LDFLAGS = \
$(GST_PLUGIN_LDFLAGS)

119
ext/pango/gstclockoverlay.c Normal file
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@ -0,0 +1,119 @@
/* 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
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gstclockoverlay.h>
#include <gst/video/video.h>
#include <time.h>
static GstElementDetails clock_overlay_details =
GST_ELEMENT_DETAILS ("Time Overlay",
"Filter/Editor/Video",
"Overlays the time on a video stream",
"Tim-Philipp Müller <tim@centricular.net>");
GST_BOILERPLATE (GstClockOverlay, gst_clock_overlay, GstTextOverlay,
GST_TYPE_TEXT_OVERLAY)
static void gst_clock_overlay_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &clock_overlay_details);
}
static gchar *
gst_clock_overlay_render_time (GstClockOverlay * overlay)
{
struct tm t;
time_t now;
now = time (NULL);
if (localtime_r (&now, &t) == NULL)
return g_strdup ("--:--:--");
return g_strdup_printf ("%02u:%02u:%02u", t.tm_hour, t.tm_min, t.tm_sec);
}
static gchar *
gst_clock_overlay_get_text (GstTextOverlay * overlay, GstBuffer * video_frame)
{
gchar *time_str, *txt, *ret;
overlay->need_render = TRUE;
GST_OBJECT_LOCK (overlay);
txt = g_strdup (overlay->default_text);
GST_OBJECT_UNLOCK (overlay);
time_str = gst_clock_overlay_render_time (GST_CLOCK_OVERLAY (overlay));
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_clock_overlay_class_init (GstClockOverlayClass * klass)
{
GstTextOverlayClass *gsttextoverlay_class;
gsttextoverlay_class = (GstTextOverlayClass *) klass;
gsttextoverlay_class->get_text = gst_clock_overlay_get_text;
}
static void
gst_clock_overlay_init (GstClockOverlay * overlay, GstClockOverlayClass * klass)
{
PangoFontDescription *font_description;
GstTextOverlay *textoverlay;
PangoContext *context;
textoverlay = GST_TEXT_OVERLAY (overlay);
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);
font_description = pango_font_description_new ();
pango_font_description_set_family (font_description, g_strdup ("Monospace"));
pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
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, 18 * PANGO_SCALE);
pango_context_set_font_description (context, font_description);
pango_font_description_free (font_description);
textoverlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
textoverlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
}

56
ext/pango/gstclockoverlay.h Normal file
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@ -0,0 +1,56 @@
/* 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
* 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_CLOCK_OVERLAY_H__
#define __GST_CLOCK_OVERLAY_H__
#include "gsttextoverlay.h"
G_BEGIN_DECLS
#define GST_TYPE_CLOCK_OVERLAY \
(gst_clock_overlay_get_type())
#define GST_CLOCK_OVERLAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CLOCK_OVERLAY,GstClockOverlay))
#define GST_CLOCK_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CLOCK_OVERLAY,GstClockOverlayClass))
#define GST_IS_CLOCK_OVERLAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CLOCK_OVERLAY))
#define GST_IS_CLOCK_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CLOCK_OVERLAY))
typedef struct _GstClockOverlay GstClockOverlay;
typedef struct _GstClockOverlayClass GstClockOverlayClass;
struct _GstClockOverlay {
GstTextOverlay textoverlay;
};
struct _GstClockOverlayClass {
GstTextOverlayClass parent_class;
};
GType gst_clock_overlay_get_type (void);
G_END_DECLS
#endif /* __GST_CLOCK_OVERLAY_H__ */

1295
ext/pango/gsttextoverlay.c
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98
ext/pango/gsttextoverlay.h
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@ -1,29 +1,30 @@
/* -*- Mode: C; c-file-style: "stroustrup" -*- */
#ifndef __GST_TEXTOVERLAY_H__
#define __GST_TEXTOVERLAY_H__
#ifndef __GST_TEXT_OVERLAY_H__
#define __GST_TEXT_OVERLAY_H__
#include <gst/gst.h>
#include <gst/base/gstcollectpads.h>
#include <pango/pangoft2.h>
G_BEGIN_DECLS
#define GST_TYPE_TEXTOVERLAY (gst_textoverlay_get_type())
#define GST_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
GST_TYPE_TEXTOVERLAY, GstTextOverlay))
#define GST_TEXTOVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
GST_TYPE_ULAW, GstTextOverlay))
#define GST_TEXTOVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
GST_TYPE_TEXTOVERLAY, GstTextOverlayClass))
#define GST_IS_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
GST_TYPE_TEXTOVERLAY))
#define GST_IS_TEXTOVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),\
GST_TYPE_TEXTOVERLAY))
#define GST_TYPE_TEXT_OVERLAY (gst_text_overlay_get_type())
#define GST_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
GST_TYPE_TEXT_OVERLAY, GstTextOverlay))
#define GST_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
GST_TYPE_TEXT_OVERLAY,GstTextOverlayClass))
#define GST_TEXT_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
GST_TYPE_TEXT_OVERLAY, GstTextOverlayClass))
#define GST_IS_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
GST_TYPE_TEXT_OVERLAY))
#define GST_IS_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
GST_TYPE_TEXT_OVERLAY))
typedef struct _GstTextOverlay GstTextOverlay;
typedef struct _GstTextOverlayClass GstTextOverlayClass;
typedef enum _GstTextOverlayVAlign GstTextOverlayVAlign;
typedef enum _GstTextOverlayHAlign GstTextOverlayHAlign;
typedef enum _GstTextOverlayVAlign GstTextOverlayVAlign;
typedef enum _GstTextOverlayHAlign GstTextOverlayHAlign;
typedef enum _GstTextOverlayWrapMode GstTextOverlayWrapMode;
enum _GstTextOverlayVAlign {
GST_TEXT_OVERLAY_VALIGN_BASELINE,
@ -37,37 +38,62 @@ enum _GstTextOverlayHAlign {
GST_TEXT_OVERLAY_HALIGN_RIGHT
};
enum _GstTextOverlayWrapMode {
GST_TEXT_OVERLAY_WRAP_MODE_NONE = -1,
GST_TEXT_OVERLAY_WRAP_MODE_WORD = PANGO_WRAP_WORD,
GST_TEXT_OVERLAY_WRAP_MODE_CHAR = PANGO_WRAP_CHAR,
GST_TEXT_OVERLAY_WRAP_MODE_WORD_CHAR = PANGO_WRAP_WORD_CHAR
};
struct _GstTextOverlay {
GstElement element;
GstElement element;
GstPad *video_sinkpad;
GstPad *text_sinkpad;
GstPad *srcpad;
gint width;
gint height;
PangoLayout *layout;
FT_Bitmap bitmap;
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 */

335
ext/pango/gsttimeoverlay.c
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@ -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;
}

52
ext/pango/gsttimeoverlay.h
View file

@ -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__ */