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/*
* GStreamer
* Copyright (C) 2018 Edward Hervey <edward@centricular.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_LINE21DECODER_H__
#define __GST_LINE21DECODER_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/video-anc.h>
#include "decoder.h"
G_BEGIN_DECLS
#define GST_TYPE_LINE21DECODER \
(gst_line_21_decoder_get_type())
#define GST_LINE21DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LINE21DECODER,GstLine21Decoder))
#define GST_LINE21DECODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_LINE21DECODER,GstLine21DecoderClass))
#define GST_IS_LINE21DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LINE21DECODER))
#define GST_IS_LINE21DECODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LINE21DECODER))
typedef struct _GstLine21Decoder GstLine21Decoder;
typedef struct _GstLine21DecoderClass GstLine21DecoderClass;
struct _GstLine21Decoder
{
GstVideoFilter parent;
gboolean compatible_format;
vbi_raw_decoder zvbi_decoder;
/* Offset (in lines) to "line 21" in the incoming stream */
gint line21_offset;
/* Maximum number of lines to probe when looking for CC */
gint max_line_probes;
/* Whether input data is v210 and needs to be converted before
* processing */
gboolean convert_v210;
guint8 *converted_lines;
GstVideoInfo *info;
};
struct _GstLine21DecoderClass
{
GstVideoFilterClass parent_class;
};
GType gst_line_21_decoder_get_type (void);
GST_ELEMENT_REGISTER_DECLARE (line21decoder);
G_END_DECLS
#endif /* __GST_LINE21DECODER_H__ */
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