gstreamer/gst/cutter/gstcutter.h
Michael Smith 4a1ceda8df gst/cutter/gstcutter.*: Fix some of the most obvious bugs in cutter. Now doesn't leak everything if input is silent.
Original commit message from CVS:
* gst/cutter/gstcutter.c: (gst_cutter_init), (gst_cutter_chain),
(gst_cutter_get_caps):
* gst/cutter/gstcutter.h:
Fix some of the most obvious bugs in cutter. Now doesn't leak
everything if input is silent.
2007-04-18 12:36:37 +00:00

86 lines
2.6 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_CUTTER_H__
#define __GST_CUTTER_H__
#include <gst/gst.h>
/* #include <gst/meta/audioraw.h> */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_CUTTER \
(gst_cutter_get_type())
#define GST_CUTTER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CUTTER,GstCutter))
#define GST_CUTTER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CUTTER,GstCutterClass))
#define GST_IS_CUTTER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CUTTER))
#define GST_IS_CUTTER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CUTTER))
typedef struct _GstCutter GstCutter;
typedef struct _GstCutterClass GstCutterClass;
struct _GstCutter
{
GstElement element;
GstPad *sinkpad, *srcpad;
double threshold_level; /* level below which to cut */
double threshold_length; /* how long signal has to remain
* below this level before cutting */
double silent_run_length; /* how long has it been below threshold ? */
gboolean silent;
gboolean silent_prev;
double pre_length; /* how long can the pre-record buffer be ? */
double pre_run_length; /* how long is it currently ? */
GList *pre_buffer; /* list of GstBuffers in pre-record buffer */
gboolean leaky; /* do we leak an overflowing prebuffer ? */
gboolean have_caps; /* did we get the needed caps yet ? */
gint width; /* bit width of data */
long max_sample; /* maximum sample value */
};
struct _GstCutterClass
{
GstElementClass parent_class;
void (*cut_start) (GstCutter* filter);
void (*cut_stop) (GstCutter* filter);
};
GType gst_cutter_get_type (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_STEREO_H__ */