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113 lines
3 KiB
C
113 lines
3 KiB
C
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/* -*- c-basic-offset: 2 -*-
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* 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_PLAYONDEMAND_H__
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#define __GST_PLAYONDEMAND_H__
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#include <config.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_PLAYONDEMAND \
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(gst_play_on_demand_get_type())
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#define GST_PLAYONDEMAND(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAYONDEMAND,GstPlayOnDemand))
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#define GST_PLAYONDEMAND_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstPlayOnDemand))
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#define GST_IS_PLAYONDEMAND(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAYONDEMAND))
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#define GST_IS_PLAYONDEMAND_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAYONDEMAND))
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typedef struct _GstPlayOnDemand GstPlayOnDemand;
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typedef struct _GstPlayOnDemandClass GstPlayOnDemandClass;
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typedef enum _GstPlayOnDemandFormat GstPlayOnDemandFormat;
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enum _GstPlayOnDemandFormat {
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GST_PLAYONDEMAND_FORMAT_INT,
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GST_PLAYONDEMAND_FORMAT_FLOAT
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};
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struct _GstPlayOnDemand {
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GstElement element;
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GstPad *sinkpad, *srcpad;
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GstBufferPool *sinkpool, *srcpool;
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/* these next data elements are for the filter's internal buffers and list of
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play pointers (offsets in the internal buffers). there are also flags for
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repeating from the beginning or end of the input stream, and a max buffer
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size. */
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gchar *buffer;
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guint buffer_size;
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guint write;
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guint start;
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guint *plays;
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gboolean eos;
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gboolean follow_stream_tail;
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gboolean silent;
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/* the next three are valid for both int and float */
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GstPlayOnDemandFormat format;
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guint rate;
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guint channels;
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/* the next five are valid only for format == GST_PLAYONDEMAND_FORMAT_INT */
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guint width;
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guint depth;
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guint endianness;
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guint law;
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gboolean is_signed;
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/* the next three are valid only for format == GST_PLAYONDEMAND_FORMAT_FLOAT */
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const gchar *layout;
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gfloat slope;
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gfloat intercept;
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};
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struct _GstPlayOnDemandClass {
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GstElementClass parent_class;
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void (*play) (GstElement *elem);
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void (*reset) (GstElement *elem);
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};
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GType gst_play_on_demand_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_PLAYONDEMAND_H__ */
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