/* * 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; typedef enum { GST_LINE_21_DECODER_MODE_ADD, GST_LINE_21_DECODER_MODE_DROP, GST_LINE_21_DECODER_MODE_REPLACE, } GstLine21DecoderMode; 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; gboolean ntsc_only; GstLine21DecoderMode mode; }; 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__ */