1 /* GStreamer DVD title source
2 * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) 2001 Billy Biggs <vektor@dumbterm.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.
34 #include "dvdreadsrc.h"
36 #include <gst/gst-i18n-plugin.h>
38 GST_DEBUG_CATEGORY_STATIC (gstgst_dvd_read_src_debug);
39 #define GST_CAT_DEFAULT (gstgst_dvd_read_src_debug)
41 static void gst_dvd_read_src_do_init (GType dvdreadsrc_type);
52 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
55 GST_STATIC_CAPS ("video/mpeg, mpegversion=2, systemstream=(boolean)true"));
57 static GstFormat title_format;
58 static GstFormat angle_format;
59 static GstFormat sector_format;
60 static GstFormat chapter_format;
62 static gboolean gst_dvd_read_src_start (GstBaseSrc * basesrc);
63 static gboolean gst_dvd_read_src_stop (GstBaseSrc * basesrc);
64 static GstFlowReturn gst_dvd_read_src_create (GstPushSrc * pushsrc,
66 static gboolean gst_dvd_read_src_src_query (GstBaseSrc * basesrc,
68 static gboolean gst_dvd_read_src_src_event (GstBaseSrc * basesrc,
70 static gboolean gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title,
72 static gboolean gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src,
74 static gboolean gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, gint angle);
75 static void gst_dvd_read_src_set_property (GObject * object, guint prop_id,
76 const GValue * value, GParamSpec * pspec);
77 static void gst_dvd_read_src_get_property (GObject * object, guint prop_id,
78 GValue * value, GParamSpec * pspec);
79 static GstEvent *gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
81 static gboolean gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size);
82 static gboolean gst_dvd_read_src_do_seek (GstBaseSrc * src, GstSegment * s);
83 static gint64 gst_dvd_read_src_convert_timecode (dvd_time_t * time);
84 static gint gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src,
85 pgc_t * pgc, gint cell);
86 static GstClockTime gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src,
88 static gint gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src,
91 GST_BOILERPLATE_FULL (GstDvdReadSrc, gst_dvd_read_src, GstPushSrc,
92 GST_TYPE_PUSH_SRC, gst_dvd_read_src_do_init);
95 gst_dvd_read_src_base_init (gpointer g_class)
97 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
99 gst_element_class_add_pad_template (element_class,
100 gst_static_pad_template_get (&srctemplate));
102 gst_element_class_set_details_simple (element_class, "DVD Source",
104 "Access a DVD title/chapter/angle using libdvdread",
105 "Erik Walthinsen <omega@cse.ogi.edu>");
109 gst_dvd_read_src_finalize (GObject * object)
111 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
113 g_free (src->location);
114 g_free (src->last_uri);
116 G_OBJECT_CLASS (parent_class)->finalize (object);
120 gst_dvd_read_src_init (GstDvdReadSrc * src, GstDvdReadSrcClass * klass)
123 src->vts_file = NULL;
124 src->vmg_file = NULL;
125 src->dvd_title = NULL;
127 src->location = g_strdup ("/dev/dvd");
128 src->last_uri = NULL;
129 src->new_seek = TRUE;
130 src->new_cell = TRUE;
131 src->change_cell = FALSE;
133 src->uri_chapter = 1;
136 src->title_lang_event_pending = NULL;
137 src->pending_clut_event = NULL;
139 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
140 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
141 gst_static_pad_template_get_caps (&srctemplate));
145 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
151 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
153 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
154 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
155 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
157 gobject_class->finalize = gst_dvd_read_src_finalize;
158 gobject_class->set_property = gst_dvd_read_src_set_property;
159 gobject_class->get_property = gst_dvd_read_src_get_property;
161 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
162 g_param_spec_string ("device", "Device",
163 "DVD device location", NULL,
164 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
165 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
166 g_param_spec_int ("title", "title", "title",
167 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
168 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
169 g_param_spec_int ("chapter", "chapter", "chapter",
170 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
171 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
172 g_param_spec_int ("angle", "angle", "angle",
173 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
175 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
176 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
177 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
178 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
179 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
180 gstbasesrc_class->is_seekable =
181 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
183 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
187 gst_dvd_read_src_start (GstBaseSrc * basesrc)
189 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
191 g_return_val_if_fail (src->location != NULL, FALSE);
193 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
195 if ((src->dvd = DVDOpen (src->location)) == NULL)
198 /* Load the video manager to find out the information about the titles */
199 GST_DEBUG_OBJECT (src, "Loading VMG info");
201 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
202 goto ifo_open_failed;
204 src->tt_srpt = src->vmg_file->tt_srpt;
206 src->title = src->uri_title - 1;
207 src->chapter = src->uri_chapter - 1;
208 src->angle = src->uri_angle - 1;
210 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
211 goto title_open_failed;
213 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
214 goto chapter_open_failed;
216 src->new_seek = FALSE;
217 src->change_cell = TRUE;
224 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
225 (_("Could not open DVD")),
226 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
231 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
232 (_("Could not open DVD")),
233 ("ifoOpen() failed: %s", g_strerror (errno)));
238 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
239 (_("Could not open DVD title %d"), src->uri_title), (NULL));
244 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
245 (_("Failed to go to chapter %d of DVD title %d"),
246 src->uri_chapter, src->uri_title), (NULL));
252 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
254 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
257 ifoClose (src->vts_file);
258 src->vts_file = NULL;
261 ifoClose (src->vmg_file);
262 src->vmg_file = NULL;
264 if (src->dvd_title) {
265 DVDCloseFile (src->dvd_title);
266 src->dvd_title = NULL;
272 src->new_cell = TRUE;
273 src->new_seek = TRUE;
274 src->change_cell = FALSE;
277 src->need_newsegment = TRUE;
278 src->vts_tmapt = NULL;
279 if (src->title_lang_event_pending) {
280 gst_event_unref (src->title_lang_event_pending);
281 src->title_lang_event_pending = NULL;
283 if (src->pending_clut_event) {
284 gst_event_unref (src->pending_clut_event);
285 src->pending_clut_event = NULL;
287 if (src->chapter_starts) {
288 g_free (src->chapter_starts);
289 src->chapter_starts = NULL;
292 GST_LOG_OBJECT (src, "closed DVD");
298 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
299 gint * p_pgc_id, pgc_t ** p_pgc)
304 g_assert (chapter >= 0 && chapter < src->num_chapters);
306 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
307 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
308 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
316 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
317 gint * p_first_cell, gint * p_last_cell)
320 gint pgn, pgc_id, pgn_next_ch;
322 g_assert (chapter >= 0 && chapter < src->num_chapters);
324 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
326 *p_first_cell = pgc->program_map[pgn - 1] - 1;
328 if (chapter == (src->num_chapters - 1)) {
329 *p_last_cell = pgc->nr_of_cells;
331 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
332 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
337 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
341 /* make sure the chapter number is valid for this title */
342 if (chapter < 0 || chapter >= src->num_chapters) {
343 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
344 chapter, src->num_chapters);
345 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
348 /* determine which program chain we want to watch. This is
349 * based on the chapter number */
350 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
352 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
355 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
356 src->start_cell, src->last_cell);
358 /* retrieve position */
360 for (i = 0; i < chapter; i++) {
363 cur_title_get_chapter_bounds (src, i, &c1, &c2);
367 src->cur_pgc->cell_playback[c1].last_sector -
368 src->cur_pgc->cell_playback[c1].first_sector;
373 /* prepare reading for new cell */
374 src->new_cell = TRUE;
375 src->next_cell = src->start_cell;
377 src->chapter = chapter;
379 if (src->pending_clut_event)
380 gst_event_unref (src->pending_clut_event);
382 src->pending_clut_event =
383 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
389 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
391 GstClockTime uptohere;
394 g_free (src->chapter_starts);
395 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
397 uptohere = (GstClockTime) 0;
398 for (c = 0; c < src->num_chapters; ++c) {
399 GstClockTime chapter_duration = 0;
400 gint cell_start, cell_end, cell;
404 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
405 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
408 while (cell < cell_end) {
409 dvd_time_t *cell_duration;
411 cell_duration = &pgc->cell_playback[cell].playback_time;
412 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
413 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
416 src->chapter_starts[c] = uptohere;
418 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
419 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
420 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
421 cell_start, cell_end);
423 uptohere += chapter_duration;
428 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
431 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
438 /* make sure our title number is valid */
439 num_titles = src->tt_srpt->nr_of_srpts;
440 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
441 if (title < 0 || title >= num_titles)
444 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
445 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
448 /* make sure the angle number is valid for this title */
449 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
450 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
451 if (angle < 0 || angle >= src->num_angles) {
452 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
453 angle, src->num_angles);
454 angle = CLAMP (angle, 0, src->num_angles - 1);
457 /* load the VTS information for the title set our title is in */
458 title_set_nr = src->tt_srpt->title[title].title_set_nr;
459 src->vts_file = ifoOpen (src->dvd, title_set_nr);
460 if (src->vts_file == NULL)
461 goto ifo_open_failed;
463 src->ttn = src->tt_srpt->title[title].vts_ttn;
464 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
466 /* interactive title? */
467 if (src->num_chapters > 0 &&
468 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
469 goto commands_only_pgc;
472 /* we've got enough info, time to open the title set data */
473 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
474 if (src->dvd_title == NULL)
475 goto title_open_failed;
477 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
483 if (src->title_lang_event_pending) {
484 gst_event_unref (src->title_lang_event_pending);
485 src->title_lang_event_pending = NULL;
488 s = gst_structure_new ("application/x-gst-dvd",
489 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
491 /* so we can filter out invalid/unused streams (same for all chapters) */
492 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
495 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
496 const audio_attr_t *a;
498 /* audio stream present? */
499 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
502 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
504 t = g_strdup_printf ("audio-%d-format", i);
505 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
509 t = g_strdup_printf ("audio-%d-language", i);
510 lang_code[0] = (a->lang_code >> 8) & 0xff;
511 lang_code[1] = a->lang_code & 0xff;
512 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
518 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
519 src->title + 1, i, lang_code, (gint) a->audio_format);
523 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
524 const subp_attr_t *u;
526 /* subpicture stream present? */
527 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
530 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
533 t = g_strdup_printf ("subtitle-%d-language", i);
534 lang_code[0] = (u->lang_code >> 8) & 0xff;
535 lang_code[1] = u->lang_code & 0xff;
536 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
542 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
543 src->title + 1, i, lang_code, u->type);
546 src->title_lang_event_pending =
547 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
549 /* dump seek tables */
550 src->vts_tmapt = src->vts_file->vts_tmapt;
551 if (src->vts_tmapt) {
554 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
555 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
556 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
557 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
558 src->vts_tmapt->tmap_offset[i]);
559 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
560 src->vts_tmapt->tmap[i].tmu);
561 GST_LOG_OBJECT (src, "Number of entries : %d",
562 src->vts_tmapt->tmap[i].nr_of_entries);
563 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
566 time = src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
567 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
568 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
569 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
570 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
574 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
577 gst_dvd_read_src_get_chapter_starts (src);
584 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
590 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
591 (_("Could not open DVD title %d"), title_set_nr),
592 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
597 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
598 (_("Could not open DVD title %d"), title_set_nr),
599 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
604 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
605 (_("Could not open DVD title %d. Interactive titles are not supported "
606 "by this element"), title_set_nr),
607 ("Commands-only PGC, not supported, use rsndvdbin"));
612 /* FIXME: double-check this function, compare against original */
614 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
616 /* Check if we're entering an angle block. */
617 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
620 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
626 /* Returns true if the pack is a NAV pack */
628 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
630 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
633 /* Check that this is substream 0 (PCI) */
637 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
640 /* Check that this is substream 1 (DSI) */
641 if (data[0x406] != 1)
644 /* Check sizes of PCI and DSI packets */
645 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
648 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
651 /* Read the DSI packet into the provided struct and check it */
652 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
653 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
659 /* find time for sector from index, returns NONE if there is no exact match */
661 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
665 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
666 return GST_CLOCK_TIME_NONE;
668 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
669 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
670 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
671 return src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
676 return (GstClockTime) 0;
678 return GST_CLOCK_TIME_NONE;
681 /* returns the sector in the index at (or before) the given time, or -1 */
683 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
687 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
691 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
692 GstClockTime entry_time;
694 entry_time = src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
695 if (entry_time <= ts) {
696 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
698 if (entry_time >= ts) {
712 GST_DVD_READ_ERROR = -1,
713 GST_DVD_READ_EOS = -2,
714 GST_DVD_READ_AGAIN = -3
717 static GstDvdReadReturn
718 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
723 guint8 oneblock[DVD_VIDEO_LB_LEN];
725 guint next_vobu, cur_output_size;
730 seg = &(GST_BASE_SRC (src)->segment);
732 /* playback by cell in this pgc, starting at the cell for our chapter */
734 src->cur_cell = src->start_cell;
738 if (src->cur_cell >= src->last_cell) {
739 /* advance to next chapter */
740 if (src->chapter == (src->num_chapters - 1) ||
741 (seg->format == chapter_format && seg->stop != -1 &&
742 src->chapter == (seg->stop - 1))) {
743 GST_DEBUG_OBJECT (src, "end of chapter segment");
747 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
751 gst_dvd_read_src_goto_chapter (src, src->chapter);
753 return GST_DVD_READ_AGAIN;
756 if (src->new_cell || new_seek) {
758 src->cur_cell = src->next_cell;
759 if (src->cur_cell >= src->last_cell) {
760 GST_LOG_OBJECT (src, "last cell in chapter");
765 /* take angle into account */
766 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
767 == BLOCK_TYPE_ANGLE_BLOCK)
768 src->cur_cell += angle;
770 /* calculate next cell */
772 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
774 /* we loop until we're out of this cell */
775 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
776 src->new_cell = FALSE;
777 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
781 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
782 src->new_cell = TRUE;
783 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
785 return GST_DVD_READ_AGAIN;
788 /* read NAV packet */
793 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
797 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
798 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
801 if (retries < 2000) {
804 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
810 /* determine where we go next. These values are the ones we
811 * mostly care about */
812 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
814 /* If we're not at the end of this cell, we can determine the next
815 * VOBU to display using the VOBU_SRI information section of the
816 * DSI. Using this value correctly follows the current angle,
817 * avoiding the doubled scenes in The Matrix, and makes our life
820 * Otherwise, we set our next address past the end of this cell to
821 * force the code above to go to the next cell in the program. */
822 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
823 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
825 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
828 g_assert (cur_output_size < 1024);
830 /* create the buffer (TODO: use buffer pool?) */
831 buf = gst_buffer_new_and_alloc (cur_output_size * DVD_VIDEO_LB_LEN);
833 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
836 /* read in and output cursize packs */
837 len = DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size,
838 GST_BUFFER_DATA (buf));
840 if (len != cur_output_size)
841 goto block_read_error;
843 GST_BUFFER_SIZE (buf) = cur_output_size * DVD_VIDEO_LB_LEN;
844 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
845 GST_BUFFER_TIMESTAMP (buf) =
846 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
848 gst_buffer_set_caps (buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)));
852 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
854 src->cur_pack = next_vobu;
856 next_time = GST_BUFFER_TIMESTAMP (buf);
857 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
858 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
859 next_time > seg->stop + 5 * GST_SECOND) {
860 GST_DEBUG_OBJECT (src, "end of TIME segment");
864 return GST_DVD_READ_OK;
869 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
870 return GST_DVD_READ_EOS;
874 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
875 return GST_DVD_READ_ERROR;
879 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
880 cur_output_size, src->cur_pack);
881 gst_buffer_unref (buf);
882 return GST_DVD_READ_ERROR;
886 /* we don't cache the result on purpose */
888 gst_dvd_read_descrambler_available (void)
894 module = g_module_open ("libdvdcss", 0);
895 if (module != NULL) {
896 res = g_module_symbol (module, "dvdcss_open", &sym);
897 g_module_close (module);
906 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
908 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
912 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
914 srcpad = GST_BASE_SRC (src)->srcpad;
916 if (src->need_newsegment) {
917 gst_pad_push_event (srcpad,
918 gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
919 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN, -1, 0));
920 src->need_newsegment = FALSE;
924 gst_dvd_read_src_goto_title (src, src->title, src->angle);
925 gst_dvd_read_src_goto_chapter (src, src->chapter);
927 src->new_seek = FALSE;
928 src->change_cell = TRUE;
931 if (src->title_lang_event_pending) {
932 gst_pad_push_event (srcpad, src->title_lang_event_pending);
933 src->title_lang_event_pending = NULL;
936 if (src->pending_clut_event) {
937 gst_pad_push_event (srcpad, src->pending_clut_event);
938 src->pending_clut_event = NULL;
943 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
944 } while (res == GST_DVD_READ_AGAIN);
947 case GST_DVD_READ_ERROR:{
948 /* FIXME: figure out a way to detect if scrambling is the problem */
949 if (!gst_dvd_read_descrambler_available ()) {
950 GST_ELEMENT_ERROR (src, RESOURCE, READ,
951 (_("Could not read DVD. This may be because the DVD is encrypted "
952 "and a DVD decryption library is not installed.")), (NULL));
954 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
957 return GST_FLOW_ERROR;
959 case GST_DVD_READ_EOS:{
960 return GST_FLOW_UNEXPECTED;
962 case GST_DVD_READ_OK:{
963 src->change_cell = FALSE;
970 g_return_val_if_reached (GST_FLOW_UNEXPECTED);
974 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
975 const GValue * value, GParamSpec * pspec)
977 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
980 GST_OBJECT_LOCK (src);
981 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED);
986 g_warning ("%s: property '%s' needs to be set before the device is "
987 "opened", GST_ELEMENT_NAME (src), pspec->name);
991 g_free (src->location);
992 /* clear the filename if we get a NULL (is that possible?) */
993 if (g_value_get_string (value) == NULL) {
994 src->location = g_strdup ("/dev/dvd");
996 src->location = g_strdup (g_value_get_string (value));
1001 src->uri_title = g_value_get_int (value);
1003 src->title = src->uri_title - 1;
1004 src->new_seek = TRUE;
1008 src->uri_chapter = g_value_get_int (value);
1010 src->chapter = src->uri_chapter - 1;
1011 src->new_seek = TRUE;
1015 src->uri_angle = g_value_get_int (value);
1017 src->angle = src->uri_angle - 1;
1021 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1025 GST_OBJECT_UNLOCK (src);
1029 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1032 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1034 GST_OBJECT_LOCK (src);
1038 g_value_set_string (value, src->location);
1041 g_value_set_int (value, src->uri_title);
1044 g_value_set_int (value, src->uri_chapter);
1047 g_value_set_int (value, src->uri_angle);
1050 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1054 GST_OBJECT_UNLOCK (src);
1058 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1060 gboolean ret = FALSE;
1062 if (src->dvd_title) {
1065 blocks = DVDFileSize (src->dvd_title);
1067 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1071 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1078 /*** Querying and seeking ***/
1081 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1084 GstSeekType cur_type, end_type;
1085 gint64 new_off, total;
1091 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1095 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1099 if (end_type != GST_SEEK_TYPE_NONE) {
1100 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1101 end_type != GST_SEEK_TYPE_SET) {
1102 GST_DEBUG_OBJECT (src, "end seek type not supported");
1107 if (cur_type != GST_SEEK_TYPE_SET) {
1108 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1112 if (format == angle_format) {
1113 GST_OBJECT_LOCK (src);
1114 if (new_off < 0 || new_off >= src->num_angles) {
1115 GST_OBJECT_UNLOCK (src);
1116 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1117 src->num_angles, src->num_angles);
1120 src->angle = (gint) new_off;
1121 GST_OBJECT_UNLOCK (src);
1122 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1126 if (format != chapter_format && format != title_format &&
1127 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1128 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1129 gst_format_get_name (format));
1133 if (format == GST_FORMAT_BYTES) {
1134 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1136 } else if (format == GST_FORMAT_TIME) {
1137 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1138 GST_TIME_ARGS (new_off));
1139 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1140 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1145 srcpad = GST_BASE_SRC_PAD (src);
1147 /* check whether the seek looks reasonable (ie within possible range) */
1148 if (format == GST_FORMAT_BYTES) {
1149 GST_OBJECT_LOCK (src);
1150 query_ok = gst_dvd_read_src_get_size (src, &total);
1151 GST_OBJECT_UNLOCK (src);
1153 query_ok = gst_pad_query_duration (srcpad, &format, &total);
1157 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1158 gst_format_get_name (format));
1162 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1163 gst_format_get_name (format), total);
1164 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1165 gst_format_get_name (format), new_off);
1167 if (new_off >= total) {
1168 GST_DEBUG_OBJECT (src, "Seek position out of range");
1172 /* set segment to seek format; this allows us to use the do_seek
1173 * virtual function and let the base source handle all the tricky
1174 * stuff for us. We don't use the segment internally anyway */
1175 /* FIXME: can't take the stream lock here - what to do? */
1176 GST_OBJECT_LOCK (src);
1177 GST_BASE_SRC (src)->segment.format = format;
1178 GST_BASE_SRC (src)->segment.start = 0;
1179 GST_BASE_SRC (src)->segment.stop = total;
1180 GST_BASE_SRC (src)->segment.duration = total;
1181 GST_OBJECT_UNLOCK (src);
1183 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1187 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1191 src = GST_DVD_READ_SRC (basesrc);
1193 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1194 gst_format_get_name (s->format), s->last_stop);
1196 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1197 || s->format == GST_FORMAT_TIME) {
1200 old = src->cur_pack;
1202 if (s->format == sector_format) {
1203 src->cur_pack = s->last_stop;
1204 } else if (s->format == GST_FORMAT_TIME) {
1207 sector = gst_dvd_read_src_get_sector_from_time (src, s->last_stop);
1209 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1210 GST_TIME_ARGS (s->last_stop), sector);
1212 /* really shouldn't happen, we've checked this earlier ... */
1213 g_return_val_if_fail (sector >= 0, FALSE);
1215 src->cur_pack = sector;
1218 src->cur_pack = s->last_stop / DVD_VIDEO_LB_LEN;
1219 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->last_stop) {
1220 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1221 G_GINT64_FORMAT, s->last_stop,
1222 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1226 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1227 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1228 src->cur_pack = old;
1232 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1233 } else if (s->format == chapter_format) {
1234 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->last_stop)) {
1235 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1236 (gint) s->last_stop + 1);
1239 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->last_stop + 1);
1240 src->chapter = s->last_stop;
1241 } else if (s->format == title_format) {
1242 if (!gst_dvd_read_src_goto_title (src, (gint) s->last_stop, src->angle) ||
1243 !gst_dvd_read_src_goto_chapter (src, 0)) {
1244 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->last_stop);
1247 src->title = (gint) s->last_stop;
1249 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1251 g_return_val_if_reached (FALSE);
1254 src->need_newsegment = TRUE;
1259 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1261 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1264 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1266 switch (GST_EVENT_TYPE (event)) {
1267 case GST_EVENT_SEEK:
1268 res = gst_dvd_read_src_handle_seek_event (src, event);
1271 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1279 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1282 GstStructure *structure;
1286 structure = gst_structure_new ("application/x-gst-dvd",
1287 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1289 /* Create a separate field for each value in the table. */
1290 for (i = 0; i < 16; i++) {
1291 g_snprintf (name, sizeof (name), "clut%02d", i);
1292 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1295 /* Create the DVD event and put the structure into it. */
1296 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1300 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1303 const gint64 one_hour = 3600 * GST_SECOND;
1304 const gint64 one_min = 60 * GST_SECOND;
1306 g_return_val_if_fail ((time->hour >> 4) < 0xa
1307 && (time->hour & 0xf) < 0xa, -1);
1308 g_return_val_if_fail ((time->minute >> 4) < 0x7
1309 && (time->minute & 0xf) < 0xa, -1);
1310 g_return_val_if_fail ((time->second >> 4) < 0x7
1311 && (time->second & 0xf) < 0xa, -1);
1313 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1314 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1315 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1321 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1326 gst_query_parse_duration (query, &format, NULL);
1329 case GST_FORMAT_TIME:{
1330 if (src->cur_pgc == NULL)
1332 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1337 case GST_FORMAT_BYTES:{
1338 if (!gst_dvd_read_src_get_size (src, &val))
1343 if (format == sector_format) {
1344 val = DVDFileSize (src->dvd_title);
1345 } else if (format == title_format) {
1346 val = src->tt_srpt->nr_of_srpts;
1347 } else if (format == chapter_format) {
1348 val = src->num_chapters;
1349 } else if (format == angle_format) {
1350 val = src->tt_srpt->title[src->title].nr_of_angles;
1352 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1353 format, gst_format_get_name (format));
1360 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1361 gst_format_get_name (format));
1363 gst_query_set_duration (query, format, val);
1368 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1373 gst_query_parse_position (query, &format, NULL);
1376 case GST_FORMAT_BYTES:{
1377 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1381 if (format == sector_format) {
1382 val = src->cur_pack;
1383 } else if (format == title_format) {
1385 } else if (format == chapter_format) {
1387 } else if (format == angle_format) {
1390 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1391 format, gst_format_get_name (format));
1398 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1399 gst_format_get_name (format));
1401 gst_query_set_position (query, format, val);
1406 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1408 GstFormat src_format, dest_format;
1409 gboolean ret = FALSE;
1410 gint64 src_val, dest_val = -1;
1412 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1414 if (src_format == dest_format) {
1420 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1421 * Note: title and chapter are counted as starting from 0 here, just like
1422 * in the context of seek events. Another note: DEFAULT format is undefined */
1424 if (src_format == GST_FORMAT_BYTES) {
1425 src_format = sector_format;
1426 src_val /= DVD_VIDEO_LB_LEN;
1429 if (src_format == sector_format) {
1431 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1432 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1433 ret = (dest_val >= 0);
1434 } else if (dest_format == GST_FORMAT_BYTES) {
1435 dest_val = src_val * DVD_VIDEO_LB_LEN;
1440 } else if (src_format == title_format) {
1442 if (dest_format == GST_FORMAT_TIME) {
1443 /* not really true, but we use this to trick the base source into
1444 * handling seeks in title-format for us (the source won't know that
1445 * we changed the title in this case) (changing titles should really
1446 * be done with an interface rather than a seek, but for now we're
1447 * stuck with this mechanism. Fix in 0.11) */
1448 dest_val = (GstClockTime) 0;
1453 } else if (src_format == chapter_format) {
1454 /* CHAPTER => xyz */
1455 if (dest_format == GST_FORMAT_TIME) {
1456 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1457 dest_val = src->chapter_starts[src_val];
1460 } else if (dest_format == sector_format) {
1464 } else if (src_format == GST_FORMAT_TIME) {
1466 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1467 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1468 ret = (dest_val >= 0);
1469 if (dest_format == GST_FORMAT_BYTES)
1470 dest_val *= DVD_VIDEO_LB_LEN;
1471 } else if (dest_format == chapter_format) {
1472 if (src->chapter_starts != NULL) {
1475 for (i = src->num_chapters - 1; i >= 0; --i) {
1476 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1495 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1502 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1504 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1506 gboolean res = TRUE;
1508 GST_LOG_OBJECT (src, "handling %s query",
1509 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1511 GST_OBJECT_LOCK (src);
1512 started = (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED));
1513 GST_OBJECT_UNLOCK (src);
1516 GST_DEBUG_OBJECT (src, "query failed: not started");
1520 switch (GST_QUERY_TYPE (query)) {
1521 case GST_QUERY_DURATION:
1522 GST_OBJECT_LOCK (src);
1523 res = gst_dvd_read_src_do_duration_query (src, query);
1524 GST_OBJECT_UNLOCK (src);
1526 case GST_QUERY_POSITION:
1527 GST_OBJECT_LOCK (src);
1528 res = gst_dvd_read_src_do_position_query (src, query);
1529 GST_OBJECT_UNLOCK (src);
1531 case GST_QUERY_CONVERT:
1532 GST_OBJECT_LOCK (src);
1533 res = gst_dvd_read_src_do_convert_query (src, query);
1534 GST_OBJECT_UNLOCK (src);
1537 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1545 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1547 gint seek_to = src->cur_pack;
1548 gint chapter, sectors, next, cur, i;
1550 /* retrieve position */
1552 for (i = 0; i < src->num_chapters; i++) {
1555 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1557 for (next = cur = c1; cur < c2;) {
1560 src->cur_pgc->cell_playback[cur].last_sector -
1561 src->cur_pgc->cell_playback[cur].first_sector;
1562 if (src->cur_pack + sectors > seek_to) {
1566 src->cur_pack += sectors;
1569 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1571 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1575 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1581 /* so chapter $chapter and cell $cur contain our sector
1582 * of interest. Let's go there! */
1583 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1586 gst_dvd_read_src_goto_chapter (src, chapter);
1587 src->cur_cell = cur;
1588 src->next_cell = next;
1589 src->new_cell = FALSE;
1590 src->cur_pack = seek_to;
1597 /*** URI interface ***/
1600 gst_dvd_read_src_uri_get_type (void)
1606 gst_dvd_read_src_uri_get_protocols (void)
1608 static gchar *protocols[] = { (gchar *) "dvd", NULL };
1613 static const gchar *
1614 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1616 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1618 GST_OBJECT_LOCK (src);
1620 g_free (src->last_uri);
1621 src->last_uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title,
1622 src->uri_chapter, src->uri_angle);
1624 GST_OBJECT_UNLOCK (src);
1626 return src->last_uri;
1630 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
1632 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1636 protocol = gst_uri_get_protocol (uri);
1637 ret = (protocol != NULL && g_str_equal (protocol, "dvd"));
1644 /* parse out the new t/c/a and seek to them */
1646 gchar *location = NULL;
1651 location = gst_uri_get_location (uri);
1656 GST_OBJECT_LOCK (src);
1659 src->uri_chapter = 1;
1662 strcur = strs = g_strsplit (location, ",", 0);
1663 while (strcur && *strcur) {
1666 if (!sscanf (*strcur, "%d", &val))
1670 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1677 src->uri_title = val;
1680 src->uri_chapter = val;
1683 src->uri_angle = val;
1691 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED)) {
1692 src->title = src->uri_title - 1;
1693 src->chapter = src->uri_chapter - 1;
1694 src->angle = src->uri_angle - 1;
1695 src->new_seek = TRUE;
1698 GST_OBJECT_UNLOCK (src);
1708 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1710 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1712 iface->get_type = gst_dvd_read_src_uri_get_type;
1713 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1714 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1715 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1719 gst_dvd_read_src_do_init (GType dvdreadsrc_type)
1721 static const GInterfaceInfo urihandler_info = {
1722 gst_dvd_read_src_uri_handler_init,
1727 g_type_add_interface_static (dvdreadsrc_type, GST_TYPE_URI_HANDLER,
1730 title_format = gst_format_register ("title", "DVD title");
1731 angle_format = gst_format_register ("angle", "DVD angle");
1732 sector_format = gst_format_register ("sector", "DVD sector");
1733 chapter_format = gst_format_register ("chapter", "DVD chapter");
1737 plugin_init (GstPlugin * plugin)
1739 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1740 "DVD reader element based on dvdreadsrc");
1743 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1745 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1746 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1747 #endif /* ENABLE_NLS */
1749 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_SECONDARY,
1750 GST_TYPE_DVD_READ_SRC)) {
1757 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1760 "Access a DVD with dvdread",
1761 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);