1 /* GStreamer monoscope visualisation element 2 * Copyright (C) <2002> Richard Boulton <richard@tartarus.org> 3 * Copyright (C) <2006> Tim-Philipp Müller <tim centricular net> 4 * Copyright (C) <2006> Wim Taymans <wim at fluendo dot com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef __GST_MONOSCOPE__ 23 #define __GST_MONOSCOPE__ 24 25 G_BEGIN_DECLS 26 27 #include <gst/gst.h> 28 #include <gst/base/gstadapter.h> 29 30 #define GST_TYPE_MONOSCOPE (gst_monoscope_get_type()) 31 #define GST_MONOSCOPE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MONOSCOPE,GstMonoscope)) 32 #define GST_MONOSCOPE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MONOSCOPE,GstMonoscopeClass)) 33 #define GST_IS_MONOSCOPE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MONOSCOPE)) 34 #define GST_IS_MONOSCOPE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MONOSCOPE)) 35 36 typedef struct _GstMonoscope GstMonoscope; 37 typedef struct _GstMonoscopeClass GstMonoscopeClass; 38 39 struct _GstMonoscope 40 { 41 GstElement element; 42 43 /* pads */ 44 GstPad *sinkpad; 45 GstPad *srcpad; 46 47 GstAdapter *adapter; 48 49 guint64 next_ts; /* expected timestamp of the next frame */ 50 guint64 frame_duration; /* video frame duration */ 51 gint rate; /* sample rate */ 52 guint bps; /* bytes per sample */ 53 guint spf; /* samples per video frame */ 54 GstBufferPool *pool; 55 56 GstSegment segment; 57 gboolean segment_pending; 58 59 /* QoS stuff *//* with LOCK */ 60 gdouble proportion; 61 GstClockTime earliest_time; 62 63 /* video state */ 64 gint fps_num; 65 gint fps_denom; 66 gint width; 67 gint height; 68 guint outsize; 69 70 /* visualisation state */ 71 struct monoscope_state *visstate; 72 }; 73 74 struct _GstMonoscopeClass 75 { 76 GstElementClass parent_class; 77 }; 78 79 GType gst_monoscope_get_type (void); 80 81 GST_ELEMENT_REGISTER_DECLARE (monoscope); 82 83 G_END_DECLS 84 85 #endif /* __GST_MONOSCOPE__ */ 86 87