2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
27 /* This is simply a convenience function, nothing more or less */
29 gst_video_frame_rate (GstPad * pad)
34 const GstCaps *caps = NULL;
35 GstStructure *structure;
38 caps = GST_PAD_CAPS (pad);
40 g_warning ("gstvideo: failed to get caps of pad %s:%s",
41 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad));
45 structure = gst_caps_get_structure (caps, 0);
46 if ((fps = gst_structure_get_value (structure, "framerate")) == NULL) {
47 g_warning ("gstvideo: failed to get framerate property of pad %s:%s",
48 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad));
51 if (!GST_VALUE_HOLDS_FRACTION (fps)) {
53 ("gstvideo: framerate property of pad %s:%s is not of type Fraction",
54 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad));
58 fps_string = gst_value_serialize (fps);
59 GST_DEBUG ("Framerate request on pad %s:%s: %s",
60 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad),
68 gst_video_get_size (GstPad * pad, gint * width, gint * height)
70 const GstCaps *caps = NULL;
71 GstStructure *structure;
74 g_return_val_if_fail (pad != NULL, FALSE);
75 g_return_val_if_fail (width != NULL, FALSE);
76 g_return_val_if_fail (height != NULL, FALSE);
78 caps = GST_PAD_CAPS (pad);
81 g_warning ("gstvideo: failed to get caps of pad %s:%s",
82 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad));
86 structure = gst_caps_get_structure (caps, 0);
87 ret = gst_structure_get_int (structure, "width", width);
88 ret &= gst_structure_get_int (structure, "height", height);
91 g_warning ("gstvideo: failed to get size properties on pad %s:%s",
92 GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad));
96 GST_DEBUG ("size request on pad %s:%s: %dx%d",
97 GST_ELEMENT_NAME (gst_pad_get_parent (pad)),
98 GST_PAD_NAME (pad), width ? *width : -1, height ? *height : -1);