closedcaption: Add more zvbi code (cea 608 decoding)

Not used yet. Same as current master zapping code. All LGPL licensed.

* Ran gst-indent
* Disabled "iconv-like" functions. Should be replaced by glib methods

1 files changed, 131 insertions, 0 deletions

diff --git a/gst/closedcaption/cc608_decoder.h b/gst/closedcaption/cc608_decoder.h
new file mode 100644
index 000000000..8f88d531d
--- /dev/null
+++ b/gst/closedcaption/cc608_decoder.h
@@ -0,0 +1,131 @@
+/*
+ *  libzvbi - EIA 608-B Closed Caption decoder
+ *
+ *  Copyright (C) 2008 Michael H. Schimek
+ *
+ *  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 Street, Fifth Floor, 
+ *  Boston, MA  02110-1301  USA.
+ */
+
+/* $Id: cc608_decoder.h,v 1.2 2009-12-14 23:43:26 mschimek Exp $ */
+
+/* This code is experimental and not yet part of the library. */
+
+#ifndef __ZVBI_CC608_DECODER_H__
+#define __ZVBI_CC608_DECODER_H__
+
+#include <stdio.h>
+
+#include "format.h"
+#include "event.h"
+#include "sliced.h"
+
+VBI_BEGIN_DECLS
+
+/* Public */
+
+#define VBI_CAPTION_CC1 1 /* primary synchronous caption service (F1) */
+#define VBI_CAPTION_CC2 2 /* special non-synchronous use captions (F1) */
+#define VBI_CAPTION_CC3 3 /* secondary synchronous caption service (F2) */
+#define VBI_CAPTION_CC4 4 /* special non-synchronous use captions (F2) */
+
+#define VBI_CAPTION_T1 5 /* first text service (F1) */
+#define VBI_CAPTION_T2 6 /* second text service (F1) */
+#define VBI_CAPTION_T3 7 /* third text service (F2) */
+#define VBI_CAPTION_T4 8 /* fourth text service (F2) */
+
+/** @internal */
+typedef enum {
+	_VBI_CC608_MODE_UNKNOWN,
+	_VBI_CC608_MODE_ROLL_UP,
+	_VBI_CC608_MODE_POP_ON,
+	_VBI_CC608_MODE_PAINT_ON,
+	_VBI_CC608_MODE_TEXT
+} _vbi_cc608_mode;
+
+/** @internal */
+typedef enum {
+	_VBI_CC608_START_ROLLING = (1 << 0)
+} _vbi_cc608_event_flags;
+
+/** @internal */
+struct _vbi_event_cc608_page {
+	int				channel;
+	_vbi_cc608_mode			mode;
+	_vbi_cc608_event_flags		flags;
+};
+
+/** @internal */
+struct _vbi_event_cc608_stream {
+	double				capture_time;
+	int64_t				pts;
+	int				channel;
+	_vbi_cc608_mode			mode;
+	vbi_char			text[32];
+};
+
+typedef struct _vbi_cc608_decoder _vbi_cc608_decoder;
+
+extern void
+_vbi_cc608_dump			(FILE *			fp,
+				 unsigned int		c1,
+				 unsigned int		c2);
+extern vbi_bool
+_vbi_cc608_decoder_get_page	(_vbi_cc608_decoder *	cd,
+				 vbi_page *		pg,
+				 vbi_pgno		channel,
+				 vbi_bool		padding);
+extern vbi_bool
+_vbi_cc608_decoder_feed		(_vbi_cc608_decoder *	cd,
+				 const uint8_t		buffer[2],
+				 unsigned int		line,
+				 double			capture_time,
+				 int64_t		pts);
+extern vbi_bool
+_vbi_cc608_decoder_feed_frame	(_vbi_cc608_decoder *	cd,
+				 const vbi_sliced *	sliced,
+				 unsigned int		n_lines,
+				 double			capture_time,
+				 int64_t		pts);
+extern void
+_vbi_cc608_decoder_remove_event_handler
+				(_vbi_cc608_decoder *	cd,
+				 vbi_event_handler	callback,
+				 void *			user_data);
+extern vbi_bool
+_vbi_cc608_decoder_add_event_handler
+				(_vbi_cc608_decoder *	cd,
+				 unsigned int		event_mask,
+				 vbi_event_handler	callback,
+				 void *			user_data);
+extern void
+_vbi_cc608_decoder_reset	(_vbi_cc608_decoder *	cd);
+extern void
+_vbi_cc608_decoder_delete	(_vbi_cc608_decoder *	cd);
+extern _vbi_cc608_decoder *
+_vbi_cc608_decoder_new		(void);
+
+/* Private */
+
+VBI_END_DECLS
+
+#endif /* __ZVBI_CC608_DECODER_H__ */
+
+/*
+Local variables:
+c-set-style: K&R
+c-basic-offset: 8
+End:
+*/