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videotimecode: Fix invalid timecode right before a new second

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When initializing a timecode from a GDateTime, and the remaining time
until the new second is less than half a frame (according to the given
frame rate), it would lead to the creation of an invalid timecode, e.g.
00:00:00:25 (at 25 fps) instead of 00:00:01:00. Fixed.

https://bugzilla.gnome.org/show_bug.cgi?id=779866
This commit is contained in:
Vivia Nikolaidou 2017-03-10 17:40:13 +02:00 committed by Sebastian Dröge
parent d15b0f4844
commit a122135194
1 changed files with 8 additions and 0 deletions
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8
gst-libs/gst/video/gstvideotimecode.c
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@ -219,6 +219,7 @@ gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
{
GDateTime *jam;
guint64 frames;
gboolean add_a_frame = FALSE;
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);
@ -228,6 +229,11 @@ gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
frames =
gst_util_uint64_scale_round (g_date_time_get_microsecond (dt) *
G_GINT64_CONSTANT (1000), fps_n, fps_d * GST_SECOND);
if (G_UNLIKELY (frames == fps_n)) {
/* Avoid invalid timecodes */
frames--;
add_a_frame = TRUE;
}
gst_video_time_code_init (tc, fps_n, fps_d, jam, flags,
g_date_time_get_hour (dt), g_date_time_get_minute (dt),
@ -240,6 +246,8 @@ gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
tc->frames = df;
}
}
if (add_a_frame)
gst_video_time_code_increment_frame (tc);
g_date_time_unref (jam);