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111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/* GStreamer
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* Copyright (C) <2002> David A. Schleef <ds@schleef.org>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_SUBPARSE_H__
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#define __GST_SUBPARSE_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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GST_DEBUG_CATEGORY_EXTERN (sub_parse_debug);
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#define GST_CAT_DEFAULT sub_parse_debug
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G_BEGIN_DECLS
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#define GST_TYPE_SUBPARSE (gst_sub_parse_get_type ())
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G_DECLARE_FINAL_TYPE (GstSubParse, gst_sub_parse, GST, SUBPARSE, GstElement)
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/* format enum */
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typedef enum
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{
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GST_SUB_PARSE_FORMAT_UNKNOWN = 0,
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GST_SUB_PARSE_FORMAT_MDVDSUB = 1,
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GST_SUB_PARSE_FORMAT_SUBRIP = 2,
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GST_SUB_PARSE_FORMAT_MPSUB = 3,
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GST_SUB_PARSE_FORMAT_SAMI = 4,
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GST_SUB_PARSE_FORMAT_TMPLAYER = 5,
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GST_SUB_PARSE_FORMAT_MPL2 = 6,
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GST_SUB_PARSE_FORMAT_SUBVIEWER = 7,
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GST_SUB_PARSE_FORMAT_DKS = 8,
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GST_SUB_PARSE_FORMAT_QTTEXT = 9,
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GST_SUB_PARSE_FORMAT_LRC = 10,
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GST_SUB_PARSE_FORMAT_VTT = 11
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} GstSubParseFormat;
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typedef struct {
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int state;
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GString *buf;
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guint64 start_time;
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guint64 duration;
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guint64 max_duration; /* to clamp duration, 0 = no limit (used by tmplayer parser) */
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GstSegment *segment;
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gpointer user_data;
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gboolean have_internal_fps; /* If TRUE don't overwrite fps by property */
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gint fps_n, fps_d; /* used by frame based parsers */
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guint8 line_position; /* percent value */
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gint line_number; /* line number, can be positive or negative */
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guint8 text_position; /* percent value */
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guint8 text_size; /* percent value */
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gchar *vertical; /* "", "vertical", "vertical-lr" */
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gchar *alignment; /* "", "start", "middle", "end" */
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gconstpointer allowed_tags; /* list of markup tags allowed in the cue text. */
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gboolean allows_tag_attributes;
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} ParserState;
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typedef gchar* (*Parser) (ParserState *state, const gchar *line);
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struct _GstSubParse {
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GstElement element;
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GstPad *sinkpad,*srcpad;
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/* contains the input in the input encoding */
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GstAdapter *adapter;
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/* contains the UTF-8 decoded input */
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GString *textbuf;
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GstSubParseFormat parser_type;
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gboolean parser_detected;
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const gchar *subtitle_codec;
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Parser parse_line;
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ParserState state;
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/* seek */
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guint64 offset;
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/* Segment */
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GstSegment segment;
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gboolean need_segment;
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gboolean flushing;
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gboolean valid_utf8;
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gchar *detected_encoding;
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gchar *encoding;
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gboolean first_buffer;
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/* used by frame based parsers */
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gint fps_n, fps_d;
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};
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G_END_DECLS
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#endif /* __GST_SUBPARSE_H__ */
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