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videotimecode: Add API for initializing from a GDateTime with validation

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The old API would only assert or return an invalid timecode, the new API
returns a boolean or NULL. We can't change the existing API
unfortunately but can at least deprecate it.
This commit is contained in:
Sebastian Dröge 2018-12-14 17:56:45 +02:00 committed by Mathieu Duponchelle
parent ac6ae25b53
commit c02d3b03c2
4 changed files with 96 additions and 12 deletions
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2
docs/libs/gst-plugins-base-libs-sections.txt
View file

@ -3075,6 +3075,7 @@ gst_video_time_code_free
gst_video_time_code_copy
gst_video_time_code_init
gst_video_time_code_init_from_date_time
gst_video_time_code_init_from_date_time_full
GST_VIDEO_TIME_CODE_INIT
gst_video_time_code_clear
gst_video_time_code_is_valid
@ -3088,6 +3089,7 @@ gst_video_time_code_to_string
gst_video_time_code_add_interval
gst_video_time_code_new_from_string
gst_video_time_code_new_from_date_time
gst_video_time_code_new_from_date_time_full
<SUBSECTION>
GstVideoTimeCodeInterval

74
gst-libs/gst/video/gstvideotimecode.c
View file

@ -230,18 +230,52 @@ gst_video_time_code_to_date_time (const GstVideoTimeCode * tc)
* The resulting config->latest_daily_jam is set to
* midnight, and timecode is set to the given time.
*
* Will assert on invalid parameters, use gst_video_time_code_init_from_date_time_full()
* for being able to handle invalid parameters.
*
* Since: 1.12
*/
void
gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
guint fps_n, guint fps_d,
GDateTime * dt, GstVideoTimeCodeFlags flags, guint field_count)
{
if (!gst_video_time_code_init_from_date_time_full (tc, fps_n, fps_d, dt,
flags, field_count))
g_return_if_fail (gst_video_time_code_is_valid (tc));
}
/**
* gst_video_time_code_init_from_date_time_full:
* @tc: a #GstVideoTimeCode
* @fps_n: Numerator of the frame rate
* @fps_d: Denominator of the frame rate
* @dt: #GDateTime to convert
* @flags: #GstVideoTimeCodeFlags
* @field_count: Interlaced video field count
*
* The resulting config->latest_daily_jam is set to
* midnight, and timecode is set to the given time.
*
* Returns: %TRUE if @tc could be correctly initialized to a valid timecode
*
* Since: 1.16
*/
gboolean
gst_video_time_code_init_from_date_time_full (GstVideoTimeCode * tc,
guint fps_n, guint fps_d,
GDateTime * dt, GstVideoTimeCodeFlags flags, guint field_count)
{
GDateTime *jam;
guint64 frames;
gboolean add_a_frame = FALSE;
g_return_val_if_fail (tc != NULL, FALSE);
g_return_val_if_fail (dt != NULL, FALSE);
g_return_val_if_fail (fps_d != 0, FALSE);
gst_video_time_code_clear (tc);
jam = g_date_time_new_local (g_date_time_get_year (dt),
g_date_time_get_month (dt), g_date_time_get_day_of_month (dt), 0, 0, 0.0);
@ -273,7 +307,7 @@ gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
g_date_time_unref (jam);
g_return_if_fail (gst_video_time_code_is_valid (tc));
return gst_video_time_code_is_valid (tc);
}
/**
@ -710,6 +744,10 @@ gst_video_time_code_new_from_string (const gchar * tc_str)
* The resulting config->latest_daily_jam is set to
* midnight, and timecode is set to the given time.
*
* This might return a completely invalid timecode, use
* gst_video_time_code_new_from_date_time_full() to ensure
* that you would get %NULL instead in that case.
*
* Returns: the #GstVideoTimeCode representation of @dt.
*
* Since: 1.12
@ -720,11 +758,41 @@ gst_video_time_code_new_from_date_time (guint fps_n, guint fps_d,
{
GstVideoTimeCode *tc;
tc = gst_video_time_code_new_empty ();
gst_video_time_code_init_from_date_time (tc, fps_n, fps_d, dt, flags,
gst_video_time_code_init_from_date_time_full (tc, fps_n, fps_d, dt, flags,
field_count);
return tc;
}
/**
* gst_video_time_code_new_from_date_time_full:
* @fps_n: Numerator of the frame rate
* @fps_d: Denominator of the frame rate
* @dt: #GDateTime to convert
* @flags: #GstVideoTimeCodeFlags
* @field_count: Interlaced video field count
*
* The resulting config->latest_daily_jam is set to
* midnight, and timecode is set to the given time.
*
* Returns: the #GstVideoTimeCode representation of @dt, or %NULL if
* no valid timecode could be created.
*
* Since: 1.16
*/
GstVideoTimeCode *
gst_video_time_code_new_from_date_time_full (guint fps_n, guint fps_d,
GDateTime * dt, GstVideoTimeCodeFlags flags, guint field_count)
{
GstVideoTimeCode *tc;
tc = gst_video_time_code_new_empty ();
if (!gst_video_time_code_init_from_date_time_full (tc, fps_n, fps_d, dt,
flags, field_count)) {
gst_video_time_code_free (tc);
return NULL;
}
return tc;
}
/**
* gst_video_time_code_init:
* @tc: a #GstVideoTimeCode

18
gst-libs/gst/video/gstvideotimecode.h
View file

@ -144,13 +144,20 @@ GstVideoTimeCode * gst_video_time_code_new_empty (void);
GST_VIDEO_API
GstVideoTimeCode * gst_video_time_code_new_from_string (const gchar * tc_str);
GST_VIDEO_API
GST_VIDEO_DEPRECATED_FOR(gst_video_time_code_new_from_date_time_full)
GstVideoTimeCode * gst_video_time_code_new_from_date_time (guint fps_n,
guint fps_d,
GDateTime * dt,
GstVideoTimeCodeFlags flags,
guint field_count);
GST_VIDEO_API
GstVideoTimeCode * gst_video_time_code_new_from_date_time_full (guint fps_n,
guint fps_d,
GDateTime * dt,
GstVideoTimeCodeFlags flags,
guint field_count);
GST_VIDEO_API
void gst_video_time_code_free (GstVideoTimeCode * tc);
@ -169,13 +176,20 @@ void gst_video_time_code_init (GstVideoTimeCode * tc
guint frames,
guint field_count);
GST_VIDEO_API
GST_VIDEO_DEPRECATED_FOR(gst_video_time_code_init_from_date_time_full)
void gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
guint fps_n,
guint fps_d,
GDateTime * dt,
GstVideoTimeCodeFlags flags,
guint field_count);
GST_VIDEO_API
gboolean gst_video_time_code_init_from_date_time_full (GstVideoTimeCode * tc,
guint fps_n,
guint fps_d,
GDateTime * dt,
GstVideoTimeCodeFlags flags,
guint field_count);
GST_VIDEO_API
void gst_video_time_code_clear (GstVideoTimeCode * tc);

6
tests/check/libs/videotimecode.c
View file

@ -614,7 +614,7 @@ GST_START_TEST (videotimecode_from_date_time_1s)
GDateTime *dt;
dt = g_date_time_new_local (2017, 2, 16, 0, 0, 1);
tc = gst_video_time_code_new_from_date_time (30000, 1001, dt,
tc = gst_video_time_code_new_from_date_time_full (30000, 1001, dt,
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME, 0);
fail_unless_equals_int (tc->hours, 0);
@ -636,7 +636,7 @@ GST_START_TEST (videotimecode_from_date_time_halfsecond)
dt = g_date_time_new_local (2017, 2, 17, 14, 13, 0);
dt2 = g_date_time_add (dt, 500000);
g_date_time_unref (dt);
tc = gst_video_time_code_new_from_date_time (30000, 1001, dt2,
tc = gst_video_time_code_new_from_date_time_full (30000, 1001, dt2,
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME, 0);
fail_unless_equals_int (tc->hours, 14);
@ -656,7 +656,7 @@ GST_START_TEST (videotimecode_from_date_time)
GDateTime *dt;
dt = g_date_time_new_local (2017, 2, 17, 14, 13, 30);
tc = gst_video_time_code_new_from_date_time (30000, 1001, dt,
tc = gst_video_time_code_new_from_date_time_full (30000, 1001, dt,
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME, 0);
fail_unless_equals_int (tc->hours, 14);