mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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609a5b68e9
Original commit message from CVS: Simple replacement for fast, but broken, algorithm. Needs to be refixed.
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstsinesrc.h:
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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_SINESRC_H__
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#define __GST_SINESRC_H__
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#include <config.h>
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#include <gst/gst.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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GstElementDetails gst_sinesrc_details;
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#define GST_TYPE_SINESRC \
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(gst_sinesrc_get_type())
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#define GST_SINESRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SINESRC,GstSineSrc))
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#define GST_SINESRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SINESRC,GstSineSrcClass))
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#define GST_IS_SINESRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SINESRC))
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#define GST_IS_SINESRC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SINESRC))
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typedef struct _GstSineSrc GstSineSrc;
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typedef struct _GstSineSrcClass GstSineSrcClass;
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struct _GstSineSrc {
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GstElement element;
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/* pads */
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GstPad *srcpad;
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GstDParamManager *dpman;
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/* parameters */
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gfloat volume;
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gfloat freq;
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/* lookup table data */
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gfloat *table_data;
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gdouble table_pos;
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gdouble table_inc;
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gint table_size;
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gdouble table_interp;
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gint table_lookup;
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gint table_lookup_next;
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/* audio parameters */
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gint width;
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gint samplerate;
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gint samples_per_buffer;
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gulong seq;
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gint64 timestamp;
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GstBufferPool *bufpool;
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gboolean newcaps;
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double accumulator;
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};
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struct _GstSineSrcClass {
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GstElementClass parent_class;
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};
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GType gst_sinesrc_get_type(void);
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gboolean gst_sinesrc_factory_init (GstElementFactory *factory);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_SINESRC_H__ */
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