2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2004 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
4 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
28 #include <sys/types.h>
32 #include "gstsubparse.h"
33 #include "gstssaparse.h"
34 #include "samiparse.h"
35 #include "tmplayerparse.h"
36 #include "mpl2parse.h"
38 GST_DEBUG_CATEGORY (sub_parse_debug);
40 #define DEFAULT_ENCODING NULL
49 gst_sub_parse_set_property (GObject * object, guint prop_id,
50 const GValue * value, GParamSpec * pspec);
52 gst_sub_parse_get_property (GObject * object, guint prop_id,
53 GValue * value, GParamSpec * pspec);
56 static const GstElementDetails sub_parse_details =
57 GST_ELEMENT_DETAILS ("Subtitle parser",
58 "Codec/Parser/Subtitle",
59 "Parses subtitle (.sub) files into text streams",
60 "Gustavo J. A. M. Carneiro <gjc@inescporto.pt>\n"
61 "Ronald S. Bultje <rbultje@ronald.bitfreak.net>");
63 #ifndef GST_DISABLE_XML
64 static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
67 GST_STATIC_CAPS ("application/x-subtitle; application/x-subtitle-sami; "
68 "application/x-subtitle-tmplayer; application/x-subtitle-mpl2")
71 static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
74 GST_STATIC_CAPS ("application/x-subtitle")
78 static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
81 GST_STATIC_CAPS ("text/plain; text/x-pango-markup")
84 static void gst_sub_parse_base_init (GstSubParseClass * klass);
85 static void gst_sub_parse_class_init (GstSubParseClass * klass);
86 static void gst_sub_parse_init (GstSubParse * subparse);
88 static gboolean gst_sub_parse_src_event (GstPad * pad, GstEvent * event);
89 static gboolean gst_sub_parse_src_query (GstPad * pad, GstQuery * query);
90 static gboolean gst_sub_parse_sink_event (GstPad * pad, GstEvent * event);
92 static GstStateChangeReturn gst_sub_parse_change_state (GstElement * element,
93 GstStateChange transition);
95 static GstFlowReturn gst_sub_parse_chain (GstPad * sinkpad, GstBuffer * buf);
97 static GstElementClass *parent_class = NULL;
100 gst_sub_parse_get_type (void)
102 static GType sub_parse_type = 0;
104 if (!sub_parse_type) {
105 static const GTypeInfo sub_parse_info = {
106 sizeof (GstSubParseClass),
107 (GBaseInitFunc) gst_sub_parse_base_init,
109 (GClassInitFunc) gst_sub_parse_class_init,
112 sizeof (GstSubParse),
114 (GInstanceInitFunc) gst_sub_parse_init,
117 sub_parse_type = g_type_register_static (GST_TYPE_ELEMENT,
118 "GstSubParse", &sub_parse_info, 0);
121 return sub_parse_type;
125 gst_sub_parse_base_init (GstSubParseClass * klass)
127 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
129 gst_element_class_add_pad_template (element_class,
130 gst_static_pad_template_get (&sink_templ));
131 gst_element_class_add_pad_template (element_class,
132 gst_static_pad_template_get (&src_templ));
133 gst_element_class_set_details (element_class, &sub_parse_details);
137 gst_sub_parse_dispose (GObject * object)
139 GstSubParse *subparse = GST_SUBPARSE (object);
141 GST_DEBUG_OBJECT (subparse, "cleaning up subtitle parser");
143 if (subparse->encoding) {
144 g_free (subparse->encoding);
145 subparse->encoding = NULL;
148 if (subparse->detected_encoding) {
149 g_free (subparse->detected_encoding);
150 subparse->detected_encoding = NULL;
153 if (subparse->adapter) {
154 gst_object_unref (subparse->adapter);
155 subparse->adapter = NULL;
158 if (subparse->textbuf) {
159 g_string_free (subparse->textbuf, TRUE);
160 subparse->textbuf = NULL;
162 #ifndef GST_DISABLE_XML
163 sami_context_deinit (&subparse->state);
166 GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
170 gst_sub_parse_class_init (GstSubParseClass * klass)
172 GObjectClass *object_class = G_OBJECT_CLASS (klass);
173 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
175 parent_class = g_type_class_peek_parent (klass);
177 object_class->dispose = gst_sub_parse_dispose;
178 object_class->set_property = gst_sub_parse_set_property;
179 object_class->get_property = gst_sub_parse_get_property;
181 element_class->change_state = gst_sub_parse_change_state;
183 g_object_class_install_property (object_class, PROP_ENCODING,
184 g_param_spec_string ("subtitle-encoding", "subtitle charset encoding",
185 "Encoding to assume if input subtitles are not in UTF-8 or any other "
186 "Unicode encoding. If not set, the GST_SUBTITLE_ENCODING environment "
187 "variable will be checked for an encoding to use. If that is not set "
188 "either, ISO-8859-15 will be assumed.", DEFAULT_ENCODING,
189 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
193 gst_sub_parse_init (GstSubParse * subparse)
195 subparse->sinkpad = gst_pad_new_from_static_template (&sink_templ, "sink");
196 gst_pad_set_chain_function (subparse->sinkpad,
197 GST_DEBUG_FUNCPTR (gst_sub_parse_chain));
198 gst_pad_set_event_function (subparse->sinkpad,
199 GST_DEBUG_FUNCPTR (gst_sub_parse_sink_event));
200 gst_element_add_pad (GST_ELEMENT (subparse), subparse->sinkpad);
202 subparse->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
203 gst_pad_set_event_function (subparse->srcpad,
204 GST_DEBUG_FUNCPTR (gst_sub_parse_src_event));
205 gst_pad_set_query_function (subparse->srcpad,
206 GST_DEBUG_FUNCPTR (gst_sub_parse_src_query));
207 gst_element_add_pad (GST_ELEMENT (subparse), subparse->srcpad);
209 subparse->textbuf = g_string_new (NULL);
210 subparse->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
211 subparse->flushing = FALSE;
212 gst_segment_init (&subparse->segment, GST_FORMAT_TIME);
213 subparse->need_segment = TRUE;
214 subparse->encoding = g_strdup (DEFAULT_ENCODING);
215 subparse->detected_encoding = NULL;
216 subparse->adapter = gst_adapter_new ();
220 * Source pad functions.
224 gst_sub_parse_src_query (GstPad * pad, GstQuery * query)
226 GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
227 gboolean ret = FALSE;
229 GST_DEBUG ("Handling %s query", GST_QUERY_TYPE_NAME (query));
231 switch (GST_QUERY_TYPE (query)) {
232 case GST_QUERY_POSITION:{
235 gst_query_parse_position (query, &fmt, NULL);
236 if (fmt != GST_FORMAT_TIME) {
237 ret = gst_pad_peer_query (self->sinkpad, query);
240 gst_query_set_position (query, GST_FORMAT_TIME,
241 self->segment.last_stop);
244 case GST_QUERY_SEEKING:
247 gboolean seekable = FALSE;
251 gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
252 if (fmt == GST_FORMAT_TIME) {
253 GstQuery *peerquery = gst_query_new_seeking (GST_FORMAT_BYTES);
255 seekable = gst_pad_peer_query (self->sinkpad, peerquery);
257 gst_query_parse_seeking (peerquery, NULL, &seekable, NULL, NULL);
258 gst_query_unref (peerquery);
261 gst_query_set_seeking (query, fmt, seekable, seekable ? 0 : -1, -1);
266 ret = gst_pad_peer_query (self->sinkpad, query);
270 gst_object_unref (self);
276 gst_sub_parse_src_event (GstPad * pad, GstEvent * event)
278 GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
279 gboolean ret = FALSE;
281 GST_DEBUG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
283 switch (GST_EVENT_TYPE (event)) {
287 GstSeekType start_type, stop_type;
292 gst_event_parse_seek (event, &rate, &format, &self->segment_flags,
293 &start_type, &start, &stop_type, &stop);
295 if (format != GST_FORMAT_TIME) {
296 GST_WARNING_OBJECT (self, "we only support seeking in TIME format");
297 gst_event_unref (event);
301 /* Convert that seek to a seeking in bytes at position 0,
302 FIXME: could use an index */
303 ret = gst_pad_push_event (self->sinkpad,
304 gst_event_new_seek (rate, GST_FORMAT_BYTES, self->segment_flags,
305 GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, 0));
308 /* Apply the seek to our segment */
309 gst_segment_set_seek (&self->segment, rate, format, self->segment_flags,
310 start_type, start, stop_type, stop, &update);
312 GST_DEBUG_OBJECT (self, "segment after seek: %" GST_SEGMENT_FORMAT,
315 self->next_offset = 0;
317 self->need_segment = TRUE;
319 GST_WARNING_OBJECT (self, "seek to 0 bytes failed");
322 gst_event_unref (event);
326 ret = gst_pad_event_default (pad, event);
331 gst_object_unref (self);
337 gst_sub_parse_set_property (GObject * object, guint prop_id,
338 const GValue * value, GParamSpec * pspec)
340 GstSubParse *subparse = GST_SUBPARSE (object);
342 GST_OBJECT_LOCK (subparse);
345 g_free (subparse->encoding);
346 subparse->encoding = g_value_dup_string (value);
347 GST_LOG_OBJECT (object, "subtitle encoding set to %s",
348 GST_STR_NULL (subparse->encoding));
351 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
354 GST_OBJECT_UNLOCK (subparse);
358 gst_sub_parse_get_property (GObject * object, guint prop_id,
359 GValue * value, GParamSpec * pspec)
361 GstSubParse *subparse = GST_SUBPARSE (object);
363 GST_OBJECT_LOCK (subparse);
366 g_value_set_string (value, subparse->encoding);
369 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
372 GST_OBJECT_UNLOCK (subparse);
376 gst_sub_parse_get_format_description (GstSubParseFormat format)
379 case GST_SUB_PARSE_FORMAT_MDVDSUB:
381 case GST_SUB_PARSE_FORMAT_SUBRIP:
383 case GST_SUB_PARSE_FORMAT_MPSUB:
385 case GST_SUB_PARSE_FORMAT_SAMI:
387 case GST_SUB_PARSE_FORMAT_TMPLAYER:
389 case GST_SUB_PARSE_FORMAT_MPL2:
391 case GST_SUB_PARSE_FORMAT_SUBVIEWER:
394 case GST_SUB_PARSE_FORMAT_UNKNOWN:
401 gst_convert_to_utf8 (const gchar * str, gsize len, const gchar * encoding,
402 gsize * consumed, GError ** err)
408 g_convert_with_fallback (str, len, "UTF-8", encoding, "*", consumed, NULL,
413 /* + 3 to skip UTF-8 BOM if it was added */
415 if (len >= 3 && (guint8) ret[0] == 0xEF && (guint8) ret[1] == 0xBB
416 && (guint8) ret[2] == 0xBF)
417 g_memmove (ret, ret + 3, len + 1 - 3);
423 detect_encoding (const gchar * str, gsize len)
425 if (len >= 3 && (guint8) str[0] == 0xEF && (guint8) str[1] == 0xBB
426 && (guint8) str[2] == 0xBF)
427 return g_strdup ("UTF-8");
429 if (len >= 2 && (guint8) str[0] == 0xFE && (guint8) str[1] == 0xFF)
430 return g_strdup ("UTF-16BE");
432 if (len >= 2 && (guint8) str[0] == 0xFF && (guint8) str[1] == 0xFE)
433 return g_strdup ("UTF-16LE");
435 if (len >= 4 && (guint8) str[0] == 0x00 && (guint8) str[1] == 0x00
436 && (guint8) str[2] == 0xFE && (guint8) str[3] == 0xFF)
437 return g_strdup ("UTF-32BE");
439 if (len >= 4 && (guint8) str[0] == 0xFF && (guint8) str[1] == 0xFE
440 && (guint8) str[2] == 0x00 && (guint8) str[3] == 0x00)
441 return g_strdup ("UTF-32LE");
447 convert_encoding (GstSubParse * self, const gchar * str, gsize len,
450 const gchar *encoding;
456 /* First try any detected encoding */
457 if (self->detected_encoding) {
459 gst_convert_to_utf8 (str, len, self->detected_encoding, consumed, &err);
464 GST_WARNING_OBJECT (self, "could not convert string from '%s' to UTF-8: %s",
465 self->detected_encoding, err->message);
466 g_free (self->detected_encoding);
467 self->detected_encoding = NULL;
471 /* Otherwise check if it's UTF8 */
472 if (self->valid_utf8) {
473 if (g_utf8_validate (str, len, NULL)) {
474 GST_LOG_OBJECT (self, "valid UTF-8, no conversion needed");
476 return g_strndup (str, len);
478 GST_INFO_OBJECT (self, "invalid UTF-8!");
479 self->valid_utf8 = FALSE;
482 /* Else try fallback */
483 encoding = self->encoding;
484 if (encoding == NULL || *encoding == '\0') {
485 encoding = g_getenv ("GST_SUBTITLE_ENCODING");
487 if (encoding == NULL || *encoding == '\0') {
488 /* if local encoding is UTF-8 and no encoding specified
489 * via the environment variable, assume ISO-8859-15 */
490 if (g_get_charset (&encoding)) {
491 encoding = "ISO-8859-15";
495 ret = gst_convert_to_utf8 (str, len, encoding, consumed, &err);
498 GST_WARNING_OBJECT (self, "could not convert string from '%s' to UTF-8: %s",
499 encoding, err->message);
502 /* invalid input encoding, fall back to ISO-8859-15 (always succeeds) */
503 ret = gst_convert_to_utf8 (str, len, "ISO-8859-15", consumed, NULL);
506 GST_LOG_OBJECT (self,
507 "successfully converted %" G_GSIZE_FORMAT " characters from %s to UTF-8"
508 "%s", len, encoding, (err) ? " , using ISO-8859-15 as fallback" : "");
514 get_next_line (GstSubParse * self)
517 const char *line_end;
519 gboolean have_r = FALSE;
521 line_end = strchr (self->textbuf->str, '\n');
524 /* end-of-line not found; return for more data */
528 /* get rid of '\r' */
529 if (line_end != self->textbuf->str && *(line_end - 1) == '\r') {
534 line_len = line_end - self->textbuf->str;
535 line = g_strndup (self->textbuf->str, line_len);
536 self->textbuf = g_string_erase (self->textbuf, 0,
537 line_len + (have_r ? 2 : 1));
542 parse_mdvdsub (ParserState * state, const gchar * line)
544 const gchar *line_split;
546 guint start_frame, end_frame;
547 gint64 clip_start = 0, clip_stop = 0;
548 gboolean in_seg = FALSE;
552 /* style variables */
557 if (sscanf (line, "{%u}{%u}", &start_frame, &end_frame) != 2) {
558 g_warning ("Parse of the following line, assumed to be in microdvd .sub"
559 " format, failed:\n%s", line);
563 /* skip the {%u}{%u} part */
564 line = strchr (line, '}') + 1;
565 line = strchr (line, '}') + 1;
567 /* see if there's a first line with a framerate */
568 if (state->fps == 0.0 && start_frame == 1 && end_frame == 1) {
569 gchar *rest, *end = NULL;
571 rest = g_strdup (line);
572 g_strdelimit (rest, ",", '.');
573 state->fps = g_ascii_strtod (rest, &end);
576 GST_INFO ("framerate from file: %f ('%s')", state->fps, rest);
581 if (state->fps == 0.0) {
582 /* FIXME: hardcoded for now, is there a better way/assumption? */
583 state->fps = 24000.0 / 1001.0;
584 GST_INFO ("no framerate specified, assuming %f", state->fps);
587 state->start_time = start_frame / state->fps * GST_SECOND;
588 state->duration = (end_frame - start_frame) / state->fps * GST_SECOND;
590 /* Check our segment start/stop */
591 in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
592 state->start_time, state->start_time + state->duration, &clip_start,
595 /* No need to parse that text if it's out of segment */
597 state->start_time = clip_start;
598 state->duration = clip_stop - clip_start;
603 markup = g_string_new (NULL);
608 /* parse style markup */
609 if (strncmp (line, "{y:i}", 5) == 0) {
611 line = strchr (line, '}') + 1;
613 if (strncmp (line, "{y:b}", 5) == 0) {
615 line = strchr (line, '}') + 1;
617 if (sscanf (line, "{s:%u}", &fontsize) == 1) {
618 line = strchr (line, '}') + 1;
620 /* forward slashes at beginning/end signify italics too */
621 if (g_str_has_prefix (line, "/")) {
625 if ((line_split = strchr (line, '|')))
626 line_chunk = g_markup_escape_text (line, line_split - line);
628 line_chunk = g_markup_escape_text (line, strlen (line));
630 /* Remove italics markers at end of line/stanza (CHECKME: are end slashes
631 * always at the end of a line or can they span multiple lines?) */
632 if (g_str_has_suffix (line_chunk, "/")) {
633 line_chunk[strlen (line_chunk) - 1] = '\0';
636 markup = g_string_append (markup, "<span");
638 g_string_append (markup, " style=\"italic\"");
640 g_string_append (markup, " weight=\"bold\"");
642 g_string_append_printf (markup, " size=\"%u\"", fontsize * 1000);
643 g_string_append_printf (markup, ">%s</span>", line_chunk);
646 g_string_append (markup, "\n");
647 line = line_split + 1;
653 g_string_free (markup, FALSE);
654 GST_DEBUG ("parse_mdvdsub returning (%f+%f): %s",
655 state->start_time / (double) GST_SECOND,
656 state->duration / (double) GST_SECOND, ret);
661 strip_trailing_newlines (gchar * txt)
667 while (len > 1 && txt[len - 1] == '\n') {
674 /* we want to escape text in general, but retain basic markup like
675 * <i></i>, <u></u>, and <b></b>. The easiest and safest way is to
676 * just unescape a white list of allowed markups again after
677 * escaping everything (the text between these simple markers isn't
678 * necessarily escaped, so it seems best to do it like this) */
680 subrip_unescape_formatting (gchar * txt)
684 for (pos = txt; pos != NULL && *pos != '\0'; ++pos) {
685 if (g_ascii_strncasecmp (pos, "<u>", 9) == 0 ||
686 g_ascii_strncasecmp (pos, "<i>", 9) == 0 ||
687 g_ascii_strncasecmp (pos, "<b>", 9) == 0) {
689 pos[1] = g_ascii_tolower (pos[4]);
691 /* move NUL terminator as well */
692 g_memmove (pos + 3, pos + 9, strlen (pos + 9) + 1);
697 for (pos = txt; pos != NULL && *pos != '\0'; ++pos) {
698 if (g_ascii_strncasecmp (pos, "</u>", 10) == 0 ||
699 g_ascii_strncasecmp (pos, "</i>", 10) == 0 ||
700 g_ascii_strncasecmp (pos, "</b>", 10) == 0) {
703 pos[2] = g_ascii_tolower (pos[5]);
705 /* move NUL terminator as well */
706 g_memmove (pos + 4, pos + 10, strlen (pos + 10) + 1);
714 subrip_remove_unhandled_tag (gchar * start, gchar * stop)
718 tag = start + strlen ("<");
722 if (g_ascii_tolower (*tag) < 'a' || g_ascii_tolower (*tag) > 'z')
727 GST_LOG ("removing unhandled tag '%s'", start);
729 g_memmove (start, stop, strlen (stop) + 1);
733 /* remove tags we haven't explicitly allowed earlier on, like font tags
736 subrip_remove_unhandled_tags (gchar * txt)
740 for (pos = txt; pos != NULL && *pos != '\0'; ++pos) {
741 if (strncmp (pos, "<", 4) == 0 && (gt = strstr (pos + 4, ">"))) {
742 if (subrip_remove_unhandled_tag (pos, gt + strlen (">")))
748 /* we only allow <i>, <u> and <b>, so let's take a simple approach. This code
749 * assumes the input has been escaped and subrip_unescape_formatting() has then
750 * been run over the input! This function adds missing closing markup tags and
751 * removes broken closing tags for tags that have never been opened. */
753 subrip_fix_up_markup (gchar ** p_txt)
755 gchar *cur, *next_tag;
757 guint num_open_tags = 0;
759 g_assert (*p_txt != NULL);
762 while (*cur != '\0') {
763 next_tag = strchr (cur, '<');
764 if (next_tag == NULL)
770 if (num_open_tags == 0 || open_tags[num_open_tags - 1] != *next_tag) {
771 GST_LOG ("broken input, closing tag '%c' is not open", *next_tag);
772 g_memmove (next_tag - 2, next_tag + 2, strlen (next_tag + 2) + 1);
775 /* it's all good, closing tag which is open */
783 if (num_open_tags == G_N_ELEMENTS (open_tags))
784 return; /* something dodgy is going on, stop parsing */
785 open_tags[num_open_tags] = *next_tag;
789 GST_ERROR ("unexpected tag '%c' (%s)", *next_tag, next_tag);
790 g_assert_not_reached ();
796 if (num_open_tags > 0) {
799 s = g_string_new (*p_txt);
800 while (num_open_tags > 0) {
801 GST_LOG ("adding missing closing tag '%c'", open_tags[num_open_tags - 1]);
802 g_string_append_c (s, '<');
803 g_string_append_c (s, '/');
804 g_string_append_c (s, open_tags[num_open_tags - 1]);
805 g_string_append_c (s, '>');
809 *p_txt = g_string_free (s, FALSE);
814 parse_subrip_time (const gchar * ts_string, GstClockTime * t)
816 gchar s[128] = { '\0', };
818 guint hour, min, sec, msec, len;
820 while (*ts_string == ' ')
823 g_strlcpy (s, ts_string, sizeof (s));
824 if ((end = strstr (s, "-->")))
828 /* ms may be in these formats:
829 * hh:mm:ss,500 = 500ms
832 * hh:mm:ss, 50 = 50ms
834 * and sscanf() doesn't differentiate between ' 5' and '5' so munge
835 * the white spaces within the timestamp to '0' (I'm sure there's a
836 * way to make sscanf() do this for us, but how?)
838 g_strdelimit (s, " ", '0');
840 /* make sure we have exactly three digits after he comma */
842 g_assert (p != NULL);
849 g_strlcat (&p[len], "0", 2);
853 GST_LOG ("parsing timestamp '%s'", s);
854 if (sscanf (s, "%u:%u:%u,%u", &hour, &min, &sec, &msec) != 4) {
855 GST_WARNING ("failed to parse subrip timestamp string '%s'", s);
859 *t = ((hour * 3600) + (min * 60) + sec) * GST_SECOND + msec * GST_MSECOND;
864 parse_subrip (ParserState * state, const gchar * line)
869 switch (state->state) {
871 /* looking for a single integer */
872 if (sscanf (line, "%u", &subnum) == 1)
877 GstClockTime ts_start, ts_end;
880 /* looking for start_time --> end_time */
881 if ((end_time = strstr (line, " --> ")) &&
882 parse_subrip_time (line, &ts_start) &&
883 parse_subrip_time (end_time + strlen (" --> "), &ts_end) &&
884 state->start_time <= ts_end) {
886 state->start_time = ts_start;
887 state->duration = ts_end - ts_start;
889 GST_DEBUG ("error parsing subrip time line '%s'", line);
896 /* No need to parse that text if it's out of segment */
897 gint64 clip_start = 0, clip_stop = 0;
898 gboolean in_seg = FALSE;
900 /* Check our segment start/stop */
901 in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
902 state->start_time, state->start_time + state->duration,
903 &clip_start, &clip_stop);
906 state->start_time = clip_start;
907 state->duration = clip_stop - clip_start;
913 /* looking for subtitle text; empty line ends this subtitle entry */
915 g_string_append_c (state->buf, '\n');
916 g_string_append (state->buf, line);
917 if (strlen (line) == 0) {
918 ret = g_markup_escape_text (state->buf->str, state->buf->len);
919 g_string_truncate (state->buf, 0);
921 subrip_unescape_formatting (ret);
922 subrip_remove_unhandled_tags (ret);
923 strip_trailing_newlines (ret);
924 subrip_fix_up_markup (&ret);
929 g_return_val_if_reached (NULL);
934 subviewer_unescape_newlines (gchar * read)
938 /* Replace all occurences of '[br]' with a newline as version 2
939 * of the subviewer format uses this for newlines */
941 if (read[0] == '\0' || read[1] == '\0' || read[2] == '\0' || read[3] == '\0')
945 if (strncmp (read, "[br]", 4) == 0) {
959 parse_subviewer (ParserState * state, const gchar * line)
961 guint h1, m1, s1, ms1;
962 guint h2, m2, s2, ms2;
965 /* TODO: Maybe also parse the fields in the header, especially DELAY.
966 * For examples see the unit test or
967 * http://www.doom9.org/index.html?/sub.htm */
969 switch (state->state) {
971 /* looking for start_time,end_time */
972 if (sscanf (line, "%u:%u:%u.%u,%u:%u:%u.%u",
973 &h1, &m1, &s1, &ms1, &h2, &m2, &s2, &ms2) == 8) {
976 (((guint64) h1) * 3600 + m1 * 60 + s1) * GST_SECOND +
979 (((guint64) h2) * 3600 + m2 * 60 + s2) * GST_SECOND +
980 ms2 * GST_MSECOND - state->start_time;
985 /* No need to parse that text if it's out of segment */
986 gint64 clip_start = 0, clip_stop = 0;
987 gboolean in_seg = FALSE;
989 /* Check our segment start/stop */
990 in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
991 state->start_time, state->start_time + state->duration,
992 &clip_start, &clip_stop);
995 state->start_time = clip_start;
996 state->duration = clip_stop - clip_start;
1002 /* looking for subtitle text; empty line ends this subtitle entry */
1003 if (state->buf->len)
1004 g_string_append_c (state->buf, '\n');
1005 g_string_append (state->buf, line);
1006 if (strlen (line) == 0) {
1007 ret = g_strdup (state->buf->str);
1008 subviewer_unescape_newlines (ret);
1009 strip_trailing_newlines (ret);
1010 g_string_truncate (state->buf, 0);
1016 g_assert_not_reached ();
1022 parse_mpsub (ParserState * state, const gchar * line)
1027 switch (state->state) {
1029 /* looking for two floats (offset, duration) */
1030 if (sscanf (line, "%f %f", &t1, &t2) == 2) {
1032 state->start_time += state->duration + GST_SECOND * t1;
1033 state->duration = GST_SECOND * t2;
1037 { /* No need to parse that text if it's out of segment */
1038 gint64 clip_start = 0, clip_stop = 0;
1039 gboolean in_seg = FALSE;
1041 /* Check our segment start/stop */
1042 in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
1043 state->start_time, state->start_time + state->duration,
1044 &clip_start, &clip_stop);
1047 state->start_time = clip_start;
1048 state->duration = clip_stop - clip_start;
1054 /* looking for subtitle text; empty line ends this
1056 if (state->buf->len)
1057 g_string_append_c (state->buf, '\n');
1058 g_string_append (state->buf, line);
1059 if (strlen (line) == 0) {
1060 ret = g_strdup (state->buf->str);
1061 g_string_truncate (state->buf, 0);
1067 g_assert_not_reached ();
1073 parser_state_init (ParserState * state)
1075 GST_DEBUG ("initialising parser");
1078 g_string_truncate (state->buf, 0);
1080 state->buf = g_string_new (NULL);
1083 state->start_time = 0;
1084 state->duration = 0;
1085 state->max_duration = 0; /* no limit */
1087 state->segment = NULL;
1091 parser_state_dispose (ParserState * state)
1094 g_string_free (state->buf, TRUE);
1097 #ifndef GST_DISABLE_XML
1098 if (state->user_data) {
1099 sami_context_reset (state);
1104 /* regex type enum */
1107 GST_SUB_PARSE_REGEX_UNKNOWN = 0,
1108 GST_SUB_PARSE_REGEX_MDVDSUB = 1,
1109 GST_SUB_PARSE_REGEX_SUBRIP = 2,
1113 gst_sub_parse_data_format_autodetect_regex_once (GstSubParseRegex regtype)
1115 gpointer result = NULL;
1116 GError *gerr = NULL;
1118 case GST_SUB_PARSE_REGEX_MDVDSUB:
1120 (gpointer) g_regex_new ("^\\{[0-9]+\\}\\{[0-9]+\\}", 0, 0, &gerr);
1121 if (result == NULL) {
1122 g_warning ("Compilation of mdvd regex failed: %s", gerr->message);
1123 g_error_free (gerr);
1126 case GST_SUB_PARSE_REGEX_SUBRIP:
1127 result = (gpointer) g_regex_new ("^([ 0-9]){0,3}[0-9]\\s*(\x0d)?\x0a"
1128 "[ 0-9][0-9]:[ 0-9][0-9]:[ 0-9][0-9],[ 0-9]{0,2}[0-9]"
1129 " +--> +([ 0-9])?[0-9]:[ 0-9][0-9]:[ 0-9][0-9],[ 0-9]{0,2}[0-9]",
1131 if (result == NULL) {
1132 g_warning ("Compilation of subrip regex failed: %s", gerr->message);
1133 g_error_free (gerr);
1137 GST_WARNING ("Trying to allocate regex of unknown type %u", regtype);
1143 * FIXME: maybe we should pass along a second argument, the preceding
1144 * text buffer, because that is how this originally worked, even though
1145 * I don't really see the use of that.
1148 static GstSubParseFormat
1149 gst_sub_parse_data_format_autodetect (gchar * match_str)
1153 static GOnce mdvd_rx_once = G_ONCE_INIT;
1154 static GOnce subrip_rx_once = G_ONCE_INIT;
1159 g_once (&mdvd_rx_once,
1160 (GThreadFunc) gst_sub_parse_data_format_autodetect_regex_once,
1161 (gpointer) GST_SUB_PARSE_REGEX_MDVDSUB);
1162 g_once (&subrip_rx_once,
1163 (GThreadFunc) gst_sub_parse_data_format_autodetect_regex_once,
1164 (gpointer) GST_SUB_PARSE_REGEX_SUBRIP);
1166 mdvd_grx = (GRegex *) mdvd_rx_once.retval;
1167 subrip_grx = (GRegex *) subrip_rx_once.retval;
1169 if (g_regex_match (mdvd_grx, match_str, 0, NULL) == TRUE) {
1170 GST_LOG ("MicroDVD (frame based) format detected");
1171 return GST_SUB_PARSE_FORMAT_MDVDSUB;
1173 if (g_regex_match (subrip_grx, match_str, 0, NULL) == TRUE) {
1174 GST_LOG ("SubRip (time based) format detected");
1175 return GST_SUB_PARSE_FORMAT_SUBRIP;
1178 if (!strncmp (match_str, "FORMAT=TIME", 11)) {
1179 GST_LOG ("MPSub (time based) format detected");
1180 return GST_SUB_PARSE_FORMAT_MPSUB;
1182 #ifndef GST_DISABLE_XML
1183 if (strstr (match_str, "<SAMI>") != NULL ||
1184 strstr (match_str, "<sami>") != NULL) {
1185 GST_LOG ("SAMI (time based) format detected");
1186 return GST_SUB_PARSE_FORMAT_SAMI;
1189 /* we're boldly assuming the first subtitle appears within the first hour */
1190 if (sscanf (match_str, "0:%02u:%02u:", &n1, &n2) == 2 ||
1191 sscanf (match_str, "0:%02u:%02u=", &n1, &n2) == 2 ||
1192 sscanf (match_str, "00:%02u:%02u:", &n1, &n2) == 2 ||
1193 sscanf (match_str, "00:%02u:%02u=", &n1, &n2) == 2 ||
1194 sscanf (match_str, "00:%02u:%02u,%u=", &n1, &n2, &n3) == 3) {
1195 GST_LOG ("TMPlayer (time based) format detected");
1196 return GST_SUB_PARSE_FORMAT_TMPLAYER;
1198 if (sscanf (match_str, "[%u][%u]", &n1, &n2) == 2) {
1199 GST_LOG ("MPL2 (time based) format detected");
1200 return GST_SUB_PARSE_FORMAT_MPL2;
1202 if (strstr (match_str, "[INFORMATION]") != NULL) {
1203 GST_LOG ("SubViewer (time based) format detected");
1204 return GST_SUB_PARSE_FORMAT_SUBVIEWER;
1207 GST_DEBUG ("no subtitle format detected");
1208 return GST_SUB_PARSE_FORMAT_UNKNOWN;
1212 gst_sub_parse_format_autodetect (GstSubParse * self)
1215 GstSubParseFormat format;
1217 if (strlen (self->textbuf->str) < 30) {
1218 GST_DEBUG ("File too small to be a subtitles file");
1222 data = g_strndup (self->textbuf->str, 35);
1223 format = gst_sub_parse_data_format_autodetect (data);
1226 self->parser_type = format;
1227 self->subtitle_codec = gst_sub_parse_get_format_description (format);
1228 parser_state_init (&self->state);
1231 case GST_SUB_PARSE_FORMAT_MDVDSUB:
1232 self->parse_line = parse_mdvdsub;
1233 return gst_caps_new_simple ("text/x-pango-markup", NULL);
1234 case GST_SUB_PARSE_FORMAT_SUBRIP:
1235 self->parse_line = parse_subrip;
1236 return gst_caps_new_simple ("text/x-pango-markup", NULL);
1237 case GST_SUB_PARSE_FORMAT_MPSUB:
1238 self->parse_line = parse_mpsub;
1239 return gst_caps_new_simple ("text/plain", NULL);
1240 #ifndef GST_DISABLE_XML
1241 case GST_SUB_PARSE_FORMAT_SAMI:
1242 self->parse_line = parse_sami;
1243 sami_context_init (&self->state);
1244 return gst_caps_new_simple ("text/x-pango-markup", NULL);
1246 case GST_SUB_PARSE_FORMAT_TMPLAYER:
1247 self->parse_line = parse_tmplayer;
1248 self->state.max_duration = 5 * GST_SECOND;
1249 return gst_caps_new_simple ("text/plain", NULL);
1250 case GST_SUB_PARSE_FORMAT_MPL2:
1251 self->parse_line = parse_mpl2;
1252 return gst_caps_new_simple ("text/x-pango-markup", NULL);
1253 case GST_SUB_PARSE_FORMAT_SUBVIEWER:
1254 self->parse_line = parse_subviewer;
1255 return gst_caps_new_simple ("text/plain", NULL);
1256 case GST_SUB_PARSE_FORMAT_UNKNOWN:
1258 GST_DEBUG ("no subtitle format detected");
1259 GST_ELEMENT_ERROR (self, STREAM, WRONG_TYPE,
1260 ("The input is not a valid/supported subtitle file"), (NULL));
1266 feed_textbuf (GstSubParse * self, GstBuffer * buf)
1270 gchar *input = NULL;
1272 discont = GST_BUFFER_IS_DISCONT (buf);
1274 if (GST_BUFFER_OFFSET_IS_VALID (buf) &&
1275 GST_BUFFER_OFFSET (buf) != self->offset) {
1276 self->offset = GST_BUFFER_OFFSET (buf);
1281 GST_INFO ("discontinuity");
1282 /* flush the parser state */
1283 parser_state_init (&self->state);
1284 g_string_truncate (self->textbuf, 0);
1285 gst_adapter_clear (self->adapter);
1286 #ifndef GST_DISABLE_XML
1287 sami_context_reset (&self->state);
1289 /* we could set a flag to make sure that the next buffer we push out also
1290 * has the DISCONT flag set, but there's no point really given that it's
1291 * subtitles which are discontinuous by nature. */
1294 self->offset = GST_BUFFER_OFFSET (buf) + GST_BUFFER_SIZE (buf);
1295 self->next_offset = self->offset;
1297 gst_adapter_push (self->adapter, buf);
1300 convert_encoding (self, (const gchar *) gst_adapter_peek (self->adapter,
1301 gst_adapter_available (self->adapter)),
1302 (gsize) gst_adapter_available (self->adapter), &consumed);
1304 if (input && consumed > 0) {
1305 self->textbuf = g_string_append (self->textbuf, input);
1306 gst_adapter_flush (self->adapter, consumed);
1312 static GstFlowReturn
1313 handle_buffer (GstSubParse * self, GstBuffer * buf)
1315 GstFlowReturn ret = GST_FLOW_OK;
1316 GstCaps *caps = NULL;
1317 gchar *line, *subtitle;
1319 if (self->first_buffer) {
1320 self->detected_encoding =
1321 detect_encoding ((gchar *) GST_BUFFER_DATA (buf),
1322 GST_BUFFER_SIZE (buf));
1323 self->first_buffer = FALSE;
1326 feed_textbuf (self, buf);
1328 /* make sure we know the format */
1329 if (G_UNLIKELY (self->parser_type == GST_SUB_PARSE_FORMAT_UNKNOWN)) {
1330 if (!(caps = gst_sub_parse_format_autodetect (self))) {
1331 return GST_FLOW_UNEXPECTED;
1333 if (!gst_pad_set_caps (self->srcpad, caps)) {
1334 gst_caps_unref (caps);
1335 return GST_FLOW_UNEXPECTED;
1337 gst_caps_unref (caps);
1340 if (self->subtitle_codec != NULL) {
1343 tags = gst_tag_list_new ();
1344 gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_SUBTITLE_CODEC,
1345 self->subtitle_codec, NULL);
1346 gst_element_found_tags_for_pad (GST_ELEMENT (self), self->srcpad, tags);
1350 while (!self->flushing && (line = get_next_line (self))) {
1353 /* Set segment on our parser state machine */
1354 self->state.segment = &self->segment;
1355 /* Now parse the line, out of segment lines will just return NULL */
1356 GST_LOG_OBJECT (self, "Parsing line '%s'", line + offset);
1357 subtitle = self->parse_line (&self->state, line + offset);
1361 guint subtitle_len = strlen (subtitle);
1363 /* +1 for terminating NUL character */
1364 ret = gst_pad_alloc_buffer_and_set_caps (self->srcpad,
1365 GST_BUFFER_OFFSET_NONE, subtitle_len + 1,
1366 GST_PAD_CAPS (self->srcpad), &buf);
1368 if (ret == GST_FLOW_OK) {
1369 /* copy terminating NUL character as well */
1370 memcpy (GST_BUFFER_DATA (buf), subtitle, subtitle_len + 1);
1371 GST_BUFFER_SIZE (buf) = subtitle_len;
1372 GST_BUFFER_TIMESTAMP (buf) = self->state.start_time;
1373 GST_BUFFER_DURATION (buf) = self->state.duration;
1375 /* in some cases (e.g. tmplayer) we can only determine the duration
1376 * of a text chunk from the timestamp of the next text chunk; in those
1377 * cases, we probably want to limit the duration to something
1378 * reasonable, so we don't end up showing some text for e.g. 40 seconds
1379 * just because nothing else is being said during that time */
1380 if (self->state.max_duration > 0 && GST_BUFFER_DURATION_IS_VALID (buf)) {
1381 if (GST_BUFFER_DURATION (buf) > self->state.max_duration)
1382 GST_BUFFER_DURATION (buf) = self->state.max_duration;
1385 gst_segment_set_last_stop (&self->segment, GST_FORMAT_TIME,
1386 self->state.start_time);
1388 GST_DEBUG_OBJECT (self, "Sending text '%s', %" GST_TIME_FORMAT " + %"
1389 GST_TIME_FORMAT, subtitle, GST_TIME_ARGS (self->state.start_time),
1390 GST_TIME_ARGS (self->state.duration));
1392 ret = gst_pad_push (self->srcpad, buf);
1395 /* move this forward (the tmplayer parser needs this) */
1396 if (self->state.duration != GST_CLOCK_TIME_NONE)
1397 self->state.start_time += self->state.duration;
1402 if (ret != GST_FLOW_OK) {
1403 GST_DEBUG_OBJECT (self, "flow: %s", gst_flow_get_name (ret));
1412 static GstFlowReturn
1413 gst_sub_parse_chain (GstPad * sinkpad, GstBuffer * buf)
1418 self = GST_SUBPARSE (GST_PAD_PARENT (sinkpad));
1420 /* Push newsegment if needed */
1421 if (self->need_segment) {
1422 GST_LOG_OBJECT (self, "pushing newsegment event with %" GST_SEGMENT_FORMAT,
1425 gst_pad_push_event (self->srcpad, gst_event_new_new_segment (FALSE,
1426 self->segment.rate, self->segment.format,
1427 self->segment.last_stop, self->segment.stop, self->segment.time));
1428 self->need_segment = FALSE;
1431 ret = handle_buffer (self, buf);
1437 gst_sub_parse_sink_event (GstPad * pad, GstEvent * event)
1439 GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
1440 gboolean ret = FALSE;
1442 GST_DEBUG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
1444 switch (GST_EVENT_TYPE (event)) {
1445 case GST_EVENT_EOS:{
1446 /* Make sure the last subrip chunk is pushed out even
1447 * if the file does not have an empty line at the end */
1448 if (self->parser_type == GST_SUB_PARSE_FORMAT_SUBRIP ||
1449 self->parser_type == GST_SUB_PARSE_FORMAT_TMPLAYER ||
1450 self->parser_type == GST_SUB_PARSE_FORMAT_MPL2) {
1451 GstBuffer *buf = gst_buffer_new_and_alloc (2 + 1);
1453 GST_DEBUG ("EOS. Pushing remaining text (if any)");
1454 GST_BUFFER_DATA (buf)[0] = '\n';
1455 GST_BUFFER_DATA (buf)[1] = '\n';
1456 GST_BUFFER_DATA (buf)[2] = '\0'; /* play it safe */
1457 GST_BUFFER_SIZE (buf) = 2;
1458 GST_BUFFER_OFFSET (buf) = self->offset;
1459 gst_sub_parse_chain (pad, buf);
1461 ret = gst_pad_event_default (pad, event);
1464 case GST_EVENT_NEWSEGMENT:
1468 gint64 start, stop, time;
1471 gst_event_parse_new_segment (event, &update, &rate, &format, &start,
1474 GST_DEBUG_OBJECT (self, "newsegment (%s)", gst_format_get_name (format));
1476 if (format == GST_FORMAT_TIME) {
1477 gst_segment_set_newsegment (&self->segment, update, rate, format,
1480 /* if not time format, we'll either start with a 0 timestamp anyway or
1481 * it's following a seek in which case we'll have saved the requested
1482 * seek segment and don't want to overwrite it (remember that on a seek
1483 * we always just seek back to the start in BYTES format and just throw
1484 * away all text that's before the requested position; if the subtitles
1485 * come from an upstream demuxer, it won't be able to handle our BYTES
1486 * seek request and instead send us a newsegment from the seek request
1487 * it received via its video pads instead, so all is fine then too) */
1491 gst_event_unref (event);
1494 case GST_EVENT_FLUSH_START:
1496 self->flushing = TRUE;
1498 ret = gst_pad_event_default (pad, event);
1501 case GST_EVENT_FLUSH_STOP:
1503 self->flushing = FALSE;
1505 ret = gst_pad_event_default (pad, event);
1509 ret = gst_pad_event_default (pad, event);
1513 gst_object_unref (self);
1519 static GstStateChangeReturn
1520 gst_sub_parse_change_state (GstElement * element, GstStateChange transition)
1522 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
1523 GstSubParse *self = GST_SUBPARSE (element);
1525 switch (transition) {
1526 case GST_STATE_CHANGE_READY_TO_PAUSED:
1527 /* format detection will init the parser state */
1529 self->next_offset = 0;
1530 self->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
1531 self->valid_utf8 = TRUE;
1532 self->first_buffer = TRUE;
1533 g_free (self->detected_encoding);
1534 self->detected_encoding = NULL;
1535 g_string_truncate (self->textbuf, 0);
1536 gst_adapter_clear (self->adapter);
1542 ret = parent_class->change_state (element, transition);
1543 if (ret == GST_STATE_CHANGE_FAILURE)
1546 switch (transition) {
1547 case GST_STATE_CHANGE_PAUSED_TO_READY:
1548 parser_state_dispose (&self->state);
1549 self->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
1562 /* FIXME 0.11: these caps are ugly, use app/x-subtitle + type field or so;
1563 * also, give different subtitle formats really different types */
1564 static GstStaticCaps mpl2_caps =
1565 GST_STATIC_CAPS ("application/x-subtitle-mpl2");
1566 #define SUB_CAPS (gst_static_caps_get (&sub_caps))
1568 static GstStaticCaps tmp_caps =
1569 GST_STATIC_CAPS ("application/x-subtitle-tmplayer");
1570 #define TMP_CAPS (gst_static_caps_get (&tmp_caps))
1572 static GstStaticCaps sub_caps = GST_STATIC_CAPS ("application/x-subtitle");
1573 #define MPL2_CAPS (gst_static_caps_get (&mpl2_caps))
1575 #ifndef GST_DISABLE_XML
1576 static GstStaticCaps smi_caps = GST_STATIC_CAPS ("application/x-subtitle-sami");
1577 #define SAMI_CAPS (gst_static_caps_get (&smi_caps))
1581 gst_subparse_type_find (GstTypeFind * tf, gpointer private)
1583 GstSubParseFormat format;
1587 gchar *encoding = NULL;
1590 if (!(data = gst_type_find_peek (tf, 0, 129)))
1593 /* make sure string passed to _autodetect() is NUL-terminated */
1594 str = g_malloc0 (129);
1595 memcpy (str, data, 128);
1597 if ((encoding = detect_encoding (str, 128)) != NULL) {
1598 gchar *converted_str;
1602 converted_str = gst_convert_to_utf8 (str, 128, encoding, &tmp, &err);
1603 if (converted_str == NULL) {
1604 GST_DEBUG ("Encoding '%s' detected but conversion failed: %s", encoding,
1610 str = converted_str;
1615 /* Check if at least the first 120 chars are valid UTF8,
1616 * otherwise convert as always */
1617 if (!g_utf8_validate (str, 128, &end) && (end - str) < 120) {
1618 gchar *converted_str;
1623 enc = g_getenv ("GST_SUBTITLE_ENCODING");
1624 if (enc == NULL || *enc == '\0') {
1625 /* if local encoding is UTF-8 and no encoding specified
1626 * via the environment variable, assume ISO-8859-15 */
1627 if (g_get_charset (&enc)) {
1628 enc = "ISO-8859-15";
1631 converted_str = gst_convert_to_utf8 (str, 128, enc, &tmp, &err);
1632 if (converted_str == NULL) {
1633 GST_DEBUG ("Charset conversion failed: %s", err->message);
1639 str = converted_str;
1643 format = gst_sub_parse_data_format_autodetect (str);
1647 case GST_SUB_PARSE_FORMAT_MDVDSUB:
1648 GST_DEBUG ("MicroDVD format detected");
1651 case GST_SUB_PARSE_FORMAT_SUBRIP:
1652 GST_DEBUG ("SubRip format detected");
1655 case GST_SUB_PARSE_FORMAT_MPSUB:
1656 GST_DEBUG ("MPSub format detected");
1659 #ifndef GST_DISABLE_XML
1660 case GST_SUB_PARSE_FORMAT_SAMI:
1661 GST_DEBUG ("SAMI (time-based) format detected");
1665 case GST_SUB_PARSE_FORMAT_TMPLAYER:
1666 GST_DEBUG ("TMPlayer (time based) format detected");
1669 /* FIXME: our MPL2 typefinding is not really good enough to warrant
1670 * returning a high probability (however, since we registered our
1671 * typefinder here with a rank of MARGINAL we should pretty much only
1672 * be called if most other typefinders have already run */
1673 case GST_SUB_PARSE_FORMAT_MPL2:
1674 GST_DEBUG ("MPL2 (time based) format detected");
1677 case GST_SUB_PARSE_FORMAT_SUBVIEWER:
1678 GST_DEBUG ("SubViewer format detected");
1682 case GST_SUB_PARSE_FORMAT_UNKNOWN:
1683 GST_DEBUG ("no subtitle format detected");
1687 /* if we're here, it's ok */
1688 gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, caps);
1692 plugin_init (GstPlugin * plugin)
1694 static gchar *sub_exts[] = { "srt", "sub", "mpsub", "mdvd", "smi", "txt",
1698 GST_DEBUG_CATEGORY_INIT (sub_parse_debug, "subparse", 0, ".sub parser");
1700 if (!gst_type_find_register (plugin, "subparse_typefind", GST_RANK_MARGINAL,
1701 gst_subparse_type_find, sub_exts, SUB_CAPS, NULL, NULL))
1704 if (!gst_element_register (plugin, "subparse",
1705 GST_RANK_PRIMARY, GST_TYPE_SUBPARSE) ||
1706 !gst_element_register (plugin, "ssaparse",
1707 GST_RANK_PRIMARY, GST_TYPE_SSA_PARSE)) {
1714 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1718 plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)