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video-track: update gaps framerate along with restriction caps.

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MathieuDuponchelle 2013-09-25 23:52:46 +02:00 committed by Thibault Saunier
parent 1fac84c7b9
commit e6f82c68e5
1 changed files with 54 additions and 3 deletions
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57
ges/ges-video-track.c
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@ -34,12 +34,63 @@ struct _GESVideoTrackPrivate
G_DEFINE_TYPE (GESVideoTrack, ges_video_track, GES_TYPE_TRACK); G_DEFINE_TYPE (GESVideoTrack, ges_video_track, GES_TYPE_TRACK);
static void
_sync_capsfilter_with_track (GESTrack * track, GstElement * capsfilter)
{
GstCaps *restriction, *caps;
gint fps_n, fps_d;
GstStructure *structure;
g_object_get (track, "restriction-caps", &restriction, NULL);
if (restriction && gst_caps_get_size (restriction) > 0) {
structure = gst_caps_get_structure (restriction, 0);
if (!gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d))
return;
} else {
return;
}
caps =
gst_caps_new_simple ("video/x-raw", "framerate", GST_TYPE_FRACTION, fps_n,
fps_d, NULL);
g_object_set (capsfilter, "caps", caps, NULL);
}
static void
_track_restriction_changed_cb (GESTrack * track, GParamSpec * arg G_GNUC_UNUSED,
GstElement * capsfilter)
{
_sync_capsfilter_with_track (track, capsfilter);
}
static void
_weak_notify_cb (GESTrack * track, GstElement * capsfilter)
{
g_signal_handlers_disconnect_by_func (track,
(GCallback) _track_restriction_changed_cb, capsfilter);
}
static GstElement * static GstElement *
create_element_for_raw_video_gap (GESTrack * track) create_element_for_raw_video_gap (GESTrack * track)
{ {
return gst_parse_bin_from_description GstElement *bin;
("videotestsrc pattern=2 name=src ! capsfilter caps=video/x-raw", TRUE, GstElement *capsfilter;
NULL);
bin = gst_parse_bin_from_description
("videotestsrc pattern=2 name=src ! videorate ! capsfilter name=gapfilter caps=video/x-raw",
TRUE, NULL);
capsfilter = gst_bin_get_by_name (GST_BIN (bin), "gapfilter");
g_object_weak_ref (G_OBJECT (capsfilter), (GWeakNotify) _weak_notify_cb,
track);
g_signal_connect (track, "notify::restriction-caps",
(GCallback) _track_restriction_changed_cb, capsfilter);
_sync_capsfilter_with_track (track, capsfilter);
return bin;
} }
static void static void