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ext/pango/gstclockoverlay.*: API: Add ability to specify format for date/time display by adding a "time-format" prope...

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Original commit message from CVS:
Patch by: Pavel Zeldin <pzeldin at gmail dot com>
* ext/pango/gstclockoverlay.c: (gst_clock_overlay_render_time),
(gst_clock_overlay_class_init), (gst_clock_overlay_finalize),
(gst_clock_overlay_init), (gst_clock_overlay_set_property),
(gst_clock_overlay_get_property):
* ext/pango/gstclockoverlay.h:
API: Add ability to specify format for date/time display by
adding a "time-format" property.
Fixes bug #554879.
This commit is contained in:
Pavel Zeldin 2008-10-08 10:49:15 +00:00 committed by Sebastian Dröge
parent 76b6a56acb
commit 947ecd72c4
3 changed files with 100 additions and 1 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2008-10-08 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: Pavel Zeldin <pzeldin at gmail dot com>
* ext/pango/gstclockoverlay.c: (gst_clock_overlay_render_time),
(gst_clock_overlay_class_init), (gst_clock_overlay_finalize),
(gst_clock_overlay_init), (gst_clock_overlay_set_property),
(gst_clock_overlay_get_property):
* ext/pango/gstclockoverlay.h:
API: Add ability to specify format for date/time display by
adding a "time-format" property.
Fixes bug #554879.
2008-10-08 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: Jan Gerber <j at oil21 dot org>

87
ext/pango/gstclockoverlay.c
View file

@ -50,6 +50,16 @@
#include <gst/video/video.h>
#include <time.h>
#define DEFAULT_PROP_TIMEFORMAT "%H:%M:%S"
enum
{
PROP_0,
PROP_TIMEFORMAT,
PROP_LAST
};
static const GstElementDetails clock_overlay_details =
GST_ELEMENT_DETAILS ("Clock overlay",
"Filter/Editor/Video",
@ -66,11 +76,19 @@ GST_BOILERPLATE (GstClockOverlay, gst_clock_overlay, GstTextOverlay,
gst_element_class_set_details (element_class, &clock_overlay_details);
}
static void gst_clock_overlay_finalize (GObject * object);
static void gst_clock_overlay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_clock_overlay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gchar *
gst_clock_overlay_render_time (GstClockOverlay * overlay)
{
struct tm *t;
time_t now;
gchar buf[256];
#ifdef HAVE_LOCALTIME_R
struct tm dummy;
@ -88,7 +106,9 @@ gst_clock_overlay_render_time (GstClockOverlay * overlay)
if (t == NULL)
return g_strdup ("--:--:--");
return g_strdup_printf ("%02u:%02u:%02u", t->tm_hour, t->tm_min, t->tm_sec);
if (strftime (buf, sizeof (buf), overlay->format, t) == 0)
return g_strdup ("");
return g_strdup (buf);
}
/* Called with lock held */
@ -118,13 +138,37 @@ gst_clock_overlay_get_text (GstTextOverlay * overlay, GstBuffer * video_frame)
static void
gst_clock_overlay_class_init (GstClockOverlayClass * klass)
{
GObjectClass *gobject_class;
GstTextOverlayClass *gsttextoverlay_class;
gobject_class = (GObjectClass *) klass;
gsttextoverlay_class = (GstTextOverlayClass *) klass;
gobject_class->finalize = gst_clock_overlay_finalize;
gobject_class->set_property = gst_clock_overlay_set_property;
gobject_class->get_property = gst_clock_overlay_get_property;
gsttextoverlay_class->get_text = gst_clock_overlay_get_text;
g_object_class_install_property (gobject_class, PROP_TIMEFORMAT,
g_param_spec_string ("time-format", "Date/Time Format",
"Format to use for time and date value, as in strftime.",
DEFAULT_PROP_TIMEFORMAT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_clock_overlay_finalize (GObject * object)
{
GstClockOverlay *overlay = GST_CLOCK_OVERLAY (object);
g_free (overlay->format);
overlay->format = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_clock_overlay_init (GstClockOverlay * overlay, GstClockOverlayClass * klass)
{
@ -151,4 +195,45 @@ gst_clock_overlay_init (GstClockOverlay * overlay, GstClockOverlayClass * klass)
textoverlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
textoverlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
overlay->format = g_strdup (DEFAULT_PROP_TIMEFORMAT);
}
static void
gst_clock_overlay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstClockOverlay *overlay = GST_CLOCK_OVERLAY (object);
GST_OBJECT_LOCK (overlay);
switch (prop_id) {
case PROP_TIMEFORMAT:
g_free (overlay->format);
overlay->format = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (overlay);
}
static void
gst_clock_overlay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstClockOverlay *overlay = GST_CLOCK_OVERLAY (object);
GST_OBJECT_LOCK (overlay);
switch (prop_id) {
case PROP_TIMEFORMAT:
g_value_set_string (value, overlay->format);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (overlay);
}

1
ext/pango/gstclockoverlay.h
View file

@ -47,6 +47,7 @@ typedef struct _GstClockOverlayClass GstClockOverlayClass;
*/
struct _GstClockOverlay {
GstTextOverlay textoverlay;
gchar *format; /* as in strftime () */
};
struct _GstClockOverlayClass {