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videotimecode: Add GstValue functions

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Add compare, serialization and deserialization functions

https://bugzilla.gnome.org/show_bug.cgi?id=772764
This commit is contained in:
Vivia Nikolaidou 2016-12-30 19:08:16 +02:00 committed by Sebastian Dröge
parent 87f21a925c
commit 06ff74e51d
2 changed files with 107 additions and 2 deletions
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108
gst-libs/gst/video/gstvideotimecode.c
View file

@ -18,10 +18,37 @@
*/
#include "gstvideotimecode.h"
#include "stdio.h"
G_DEFINE_BOXED_TYPE (GstVideoTimeCode, gst_video_time_code,
static void
gst_video_time_code_gvalue_to_string (const GValue * tc_val, GValue * str_val);
static void
gst_video_time_code_gvalue_from_string (const GValue * str_val,
GValue * tc_val);
static gboolean gst_video_time_code_deserialize (GValue * dest,
const gchar * tc_str);
static gchar *gst_video_time_code_serialize (const GValue * val);
static void
_init (GType type)
{
static GstValueTable table =
{ 0, (GstValueCompareFunc) gst_video_time_code_compare,
(GstValueSerializeFunc) gst_video_time_code_serialize,
(GstValueDeserializeFunc) gst_video_time_code_deserialize
};
table.type = type;
gst_value_register (&table);
g_value_register_transform_func (type, G_TYPE_STRING,
(GValueTransform) gst_video_time_code_gvalue_to_string);
g_value_register_transform_func (G_TYPE_STRING, type,
(GValueTransform) gst_video_time_code_gvalue_from_string);
}
G_DEFINE_BOXED_TYPE_WITH_CODE (GstVideoTimeCode, gst_video_time_code,
(GBoxedCopyFunc) gst_video_time_code_copy,
(GBoxedFreeFunc) gst_video_time_code_free);
(GBoxedFreeFunc) gst_video_time_code_free, _init (g_define_type_id));
/**
* gst_video_time_code_is_valid:
@ -515,6 +542,83 @@ gst_video_time_code_new_empty (void)
return tc;
}
static void
gst_video_time_code_gvalue_from_string (const GValue * str_val, GValue * tc_val)
{
const gchar *tc_str = g_value_get_string (str_val);
GstVideoTimeCode *tc;
tc = gst_video_time_code_new_from_string (tc_str);
g_value_take_boxed (tc_val, tc);
}
static void
gst_video_time_code_gvalue_to_string (const GValue * tc_val, GValue * str_val)
{
const GstVideoTimeCode *tc = g_value_get_boxed (tc_val);
gchar *tc_str;
tc_str = gst_video_time_code_to_string (tc);
g_value_take_string (str_val, tc_str);
}
static gchar *
gst_video_time_code_serialize (const GValue * val)
{
GstVideoTimeCode *tc = g_value_get_boxed (val);
return gst_video_time_code_to_string (tc);
}
static gboolean
gst_video_time_code_deserialize (GValue * dest, const gchar * tc_str)
{
GstVideoTimeCode *tc = gst_video_time_code_new_from_string (tc_str);
if (tc == NULL || !gst_video_time_code_is_valid (tc))
return FALSE;
g_value_take_boxed (dest, tc);
return TRUE;
}
/**
* gst_video_time_code_new_from_string:
* @tc_str: The string that represents the #GstVideoTimeCode
*
* Returns: a new #GstVideoTimeCode from the given string
*
* Since: 1.12
*/
GstVideoTimeCode *
gst_video_time_code_new_from_string (const gchar * tc_str)
{
GstVideoTimeCode *tc;
guint hours, minutes, seconds, frames;
if (sscanf (tc_str, "%02u:%02u:%02u:%02u", &hours, &minutes, &seconds,
&frames)
== 4
|| sscanf (tc_str, "%02u:%02u:%02u;%02u", &hours, &minutes, &seconds,
&frames)
== 4
|| sscanf (tc_str, "%02u:%02u:%02u.%02u", &hours, &minutes, &seconds,
&frames)
== 4
|| sscanf (tc_str, "%02u:%02u:%02u,%02u", &hours, &minutes, &seconds,
&frames)
== 4) {
tc = gst_video_time_code_new (0, 1, NULL, GST_VIDEO_TIME_CODE_FLAGS_NONE,
hours, minutes, seconds, frames, 0);
return tc;
} else {
GST_ERROR ("Warning: Could not parse timecode %s. "
"Please input a timecode in the form 00:00:00:00", tc_str);
return NULL;
}
}
/**
* gst_video_time_code_init:
* @tc: a #GstVideoTimeCode

1
gst-libs/gst/video/gstvideotimecode.h
View file

@ -113,6 +113,7 @@ GstVideoTimeCode * gst_video_time_code_new (guint fp
guint frames,
guint field_count);
GstVideoTimeCode * gst_video_time_code_new_empty (void);
GstVideoTimeCode * gst_video_time_code_new_from_string (const gchar * tc_str);
void gst_video_time_code_free (GstVideoTimeCode * tc);
GstVideoTimeCode * gst_video_time_code_copy (const GstVideoTimeCode * tc);