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4a1ceda8df
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.
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_CUTTER_H__
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#define __GST_CUTTER_H__
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#include <gst/gst.h>
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/* #include <gst/meta/audioraw.h> */
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_CUTTER \
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(gst_cutter_get_type())
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#define GST_CUTTER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CUTTER,GstCutter))
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#define GST_CUTTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CUTTER,GstCutterClass))
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#define GST_IS_CUTTER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CUTTER))
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#define GST_IS_CUTTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CUTTER))
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typedef struct _GstCutter GstCutter;
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typedef struct _GstCutterClass GstCutterClass;
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struct _GstCutter
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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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double threshold_level; /* level below which to cut */
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double threshold_length; /* how long signal has to remain
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* below this level before cutting */
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double silent_run_length; /* how long has it been below threshold ? */
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gboolean silent;
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gboolean silent_prev;
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double pre_length; /* how long can the pre-record buffer be ? */
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double pre_run_length; /* how long is it currently ? */
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GList *pre_buffer; /* list of GstBuffers in pre-record buffer */
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gboolean leaky; /* do we leak an overflowing prebuffer ? */
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gboolean have_caps; /* did we get the needed caps yet ? */
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gint width; /* bit width of data */
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long max_sample; /* maximum sample value */
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};
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struct _GstCutterClass
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{
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GstElementClass parent_class;
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void (*cut_start) (GstCutter* filter);
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void (*cut_stop) (GstCutter* filter);
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};
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GType gst_cutter_get_type (void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_STEREO_H__ */
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