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103 lines
2.8 KiB
C
103 lines
2.8 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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* gstadder.h: Header for GstAdder element
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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_ADDER_H__
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#define __GST_ADDER_H__
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#include <gst/gst.h>
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#include <gst/bytestream/bytestream.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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extern GstElementDetails gst_adder_details;
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#define GST_TYPE_ADDER \
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(gst_adder_get_type())
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#define GST_ADDER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ADDER,GstAdder))
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#define GST_ADDER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ADDER,GstAdderClass))
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#define GST_IS_ADDER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ADDER))
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#define GST_IS_ADDER_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ADDER))
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typedef struct _GstAdder GstAdder;
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typedef struct _GstAdderClass GstAdderClass;
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typedef struct _GstAdderInputChannel GstAdderInputChannel;
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typedef enum _GstAdderFormat GstAdderFormat;
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enum _GstAdderFormat {
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GST_ADDER_FORMAT_UNSET,
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GST_ADDER_FORMAT_INT,
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GST_ADDER_FORMAT_FLOAT
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};
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struct _GstAdderInputChannel {
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GstPad *sinkpad;
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GstByteStream *bytestream;
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};
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struct _GstAdder {
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GstElement element;
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GstPad *srcpad;
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GstBufferPool *bufpool;
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/* keep track of the sinkpads */
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guint numsinkpads;
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GSList *input_channels;
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/* the next three are valid for both int and float */
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GstAdderFormat 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 _GstAdderClass {
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GstElementClass parent_class;
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};
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GType gst_adder_get_type (void);
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gboolean gst_adder_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_ADDER_H__ */
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