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)
50 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
53 GST_STATIC_CAPS ("video/mpeg, mpegversion=2, systemstream=(boolean)true"));
55 static GstFormat title_format;
56 static GstFormat angle_format;
57 static GstFormat sector_format;
58 static GstFormat chapter_format;
60 static gboolean gst_dvd_read_src_start (GstBaseSrc * basesrc);
61 static gboolean gst_dvd_read_src_stop (GstBaseSrc * basesrc);
62 static GstFlowReturn gst_dvd_read_src_create (GstPushSrc * pushsrc,
64 static gboolean gst_dvd_read_src_src_query (GstBaseSrc * basesrc,
66 static gboolean gst_dvd_read_src_src_event (GstBaseSrc * basesrc,
68 static gboolean gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title,
70 static gboolean gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src,
72 static gboolean gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, gint angle);
73 static void gst_dvd_read_src_set_property (GObject * object, guint prop_id,
74 const GValue * value, GParamSpec * pspec);
75 static void gst_dvd_read_src_get_property (GObject * object, guint prop_id,
76 GValue * value, GParamSpec * pspec);
77 static GstEvent *gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
79 static gboolean gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size);
80 static gboolean gst_dvd_read_src_do_seek (GstBaseSrc * src, GstSegment * s);
81 static gint64 gst_dvd_read_src_convert_timecode (dvd_time_t * time);
82 static gint gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src,
83 pgc_t * pgc, gint cell);
84 static GstClockTime gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src,
86 static gint gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src,
89 static void gst_dvd_read_src_uri_handler_init (gpointer g_iface,
92 #define gst_dvd_read_src_parent_class parent_class
93 G_DEFINE_TYPE_WITH_CODE (GstDvdReadSrc, gst_dvd_read_src, GST_TYPE_PUSH_SRC,
94 G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
95 gst_dvd_read_src_uri_handler_init));
98 gst_dvd_read_src_finalize (GObject * object)
100 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
102 g_free (src->location);
103 g_free (src->last_uri);
105 G_OBJECT_CLASS (parent_class)->finalize (object);
109 gst_dvd_read_src_init (GstDvdReadSrc * src)
112 src->vts_file = NULL;
113 src->vmg_file = NULL;
114 src->dvd_title = NULL;
116 src->location = g_strdup ("/dev/dvd");
117 src->last_uri = NULL;
118 src->new_seek = TRUE;
119 src->new_cell = TRUE;
120 src->change_cell = FALSE;
122 src->uri_chapter = 1;
125 src->title_lang_event_pending = NULL;
126 src->pending_clut_event = NULL;
128 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
129 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
130 gst_static_pad_template_get_caps (&srctemplate));
134 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
140 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
142 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
143 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
144 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
145 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
147 gobject_class->finalize = gst_dvd_read_src_finalize;
148 gobject_class->set_property = gst_dvd_read_src_set_property;
149 gobject_class->get_property = gst_dvd_read_src_get_property;
151 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
152 g_param_spec_string ("device", "Device",
153 "DVD device location", NULL,
154 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
155 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
156 g_param_spec_int ("title", "title", "title",
157 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
158 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
159 g_param_spec_int ("chapter", "chapter", "chapter",
160 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
161 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
162 g_param_spec_int ("angle", "angle", "angle",
163 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
165 gst_element_class_add_pad_template (gstelement_class,
166 gst_static_pad_template_get (&srctemplate));
168 gst_element_class_set_details_simple (gstelement_class, "DVD Source",
170 "Access a DVD title/chapter/angle using libdvdread",
171 "Erik Walthinsen <omega@cse.ogi.edu>");
173 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
174 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
175 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
176 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
177 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
178 gstbasesrc_class->is_seekable =
179 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
181 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
183 title_format = gst_format_register ("title", "DVD title");
184 angle_format = gst_format_register ("angle", "DVD angle");
185 sector_format = gst_format_register ("sector", "DVD sector");
186 chapter_format = gst_format_register ("chapter", "DVD chapter");
190 gst_dvd_read_src_start (GstBaseSrc * basesrc)
192 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
194 g_return_val_if_fail (src->location != NULL, FALSE);
196 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
198 if ((src->dvd = DVDOpen (src->location)) == NULL)
201 /* Load the video manager to find out the information about the titles */
202 GST_DEBUG_OBJECT (src, "Loading VMG info");
204 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
205 goto ifo_open_failed;
207 src->tt_srpt = src->vmg_file->tt_srpt;
209 src->title = src->uri_title - 1;
210 src->chapter = src->uri_chapter - 1;
211 src->angle = src->uri_angle - 1;
213 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
214 goto title_open_failed;
216 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
217 goto chapter_open_failed;
219 src->new_seek = FALSE;
220 src->change_cell = TRUE;
227 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
228 (_("Could not open DVD")),
229 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
234 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
235 (_("Could not open DVD")),
236 ("ifoOpen() failed: %s", g_strerror (errno)));
241 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
242 (_("Could not open DVD title %d"), src->uri_title), (NULL));
247 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
248 (_("Failed to go to chapter %d of DVD title %d"),
249 src->uri_chapter, src->uri_title), (NULL));
255 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
257 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
260 ifoClose (src->vts_file);
261 src->vts_file = NULL;
264 ifoClose (src->vmg_file);
265 src->vmg_file = NULL;
267 if (src->dvd_title) {
268 DVDCloseFile (src->dvd_title);
269 src->dvd_title = NULL;
275 src->new_cell = TRUE;
276 src->new_seek = TRUE;
277 src->change_cell = FALSE;
280 src->need_newsegment = TRUE;
281 src->vts_tmapt = NULL;
282 if (src->title_lang_event_pending) {
283 gst_event_unref (src->title_lang_event_pending);
284 src->title_lang_event_pending = NULL;
286 if (src->pending_clut_event) {
287 gst_event_unref (src->pending_clut_event);
288 src->pending_clut_event = NULL;
290 if (src->chapter_starts) {
291 g_free (src->chapter_starts);
292 src->chapter_starts = NULL;
295 GST_LOG_OBJECT (src, "closed DVD");
301 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
302 gint * p_pgc_id, pgc_t ** p_pgc)
307 g_assert (chapter >= 0 && chapter < src->num_chapters);
309 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
310 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
311 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
319 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
320 gint * p_first_cell, gint * p_last_cell)
323 gint pgn, pgc_id, pgn_next_ch;
325 g_assert (chapter >= 0 && chapter < src->num_chapters);
327 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
329 *p_first_cell = pgc->program_map[pgn - 1] - 1;
331 if (chapter == (src->num_chapters - 1)) {
332 *p_last_cell = pgc->nr_of_cells;
334 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
335 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
340 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
344 /* make sure the chapter number is valid for this title */
345 if (chapter < 0 || chapter >= src->num_chapters) {
346 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
347 chapter, src->num_chapters);
348 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
351 /* determine which program chain we want to watch. This is
352 * based on the chapter number */
353 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
355 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
358 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
359 src->start_cell, src->last_cell);
361 /* retrieve position */
363 for (i = 0; i < chapter; i++) {
366 cur_title_get_chapter_bounds (src, i, &c1, &c2);
370 src->cur_pgc->cell_playback[c1].last_sector -
371 src->cur_pgc->cell_playback[c1].first_sector;
376 /* prepare reading for new cell */
377 src->new_cell = TRUE;
378 src->next_cell = src->start_cell;
380 src->chapter = chapter;
382 if (src->pending_clut_event)
383 gst_event_unref (src->pending_clut_event);
385 src->pending_clut_event =
386 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
392 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
394 GstClockTime uptohere;
397 g_free (src->chapter_starts);
398 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
400 uptohere = (GstClockTime) 0;
401 for (c = 0; c < src->num_chapters; ++c) {
402 GstClockTime chapter_duration = 0;
403 gint cell_start, cell_end, cell;
407 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
408 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
411 while (cell < cell_end) {
412 dvd_time_t *cell_duration;
414 cell_duration = &pgc->cell_playback[cell].playback_time;
415 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
416 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
419 src->chapter_starts[c] = uptohere;
421 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
422 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
423 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
424 cell_start, cell_end);
426 uptohere += chapter_duration;
431 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
434 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
441 /* make sure our title number is valid */
442 num_titles = src->tt_srpt->nr_of_srpts;
443 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
444 if (title < 0 || title >= num_titles)
447 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
448 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
451 /* make sure the angle number is valid for this title */
452 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
453 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
454 if (angle < 0 || angle >= src->num_angles) {
455 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
456 angle, src->num_angles);
457 angle = CLAMP (angle, 0, src->num_angles - 1);
460 /* load the VTS information for the title set our title is in */
461 title_set_nr = src->tt_srpt->title[title].title_set_nr;
462 src->vts_file = ifoOpen (src->dvd, title_set_nr);
463 if (src->vts_file == NULL)
464 goto ifo_open_failed;
466 src->ttn = src->tt_srpt->title[title].vts_ttn;
467 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
469 /* interactive title? */
470 if (src->num_chapters > 0 &&
471 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
472 goto commands_only_pgc;
475 /* we've got enough info, time to open the title set data */
476 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
477 if (src->dvd_title == NULL)
478 goto title_open_failed;
480 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
486 if (src->title_lang_event_pending) {
487 gst_event_unref (src->title_lang_event_pending);
488 src->title_lang_event_pending = NULL;
491 s = gst_structure_new ("application/x-gst-dvd",
492 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
494 /* so we can filter out invalid/unused streams (same for all chapters) */
495 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
498 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
499 const audio_attr_t *a;
501 /* audio stream present? */
502 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
505 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
507 t = g_strdup_printf ("audio-%d-format", i);
508 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
512 t = g_strdup_printf ("audio-%d-language", i);
513 lang_code[0] = (a->lang_code >> 8) & 0xff;
514 lang_code[1] = a->lang_code & 0xff;
515 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
521 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
522 src->title + 1, i, lang_code, (gint) a->audio_format);
526 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
527 const subp_attr_t *u;
529 /* subpicture stream present? */
530 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
533 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
536 t = g_strdup_printf ("subtitle-%d-language", i);
537 lang_code[0] = (u->lang_code >> 8) & 0xff;
538 lang_code[1] = u->lang_code & 0xff;
539 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
545 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
546 src->title + 1, i, lang_code, u->type);
549 src->title_lang_event_pending =
550 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
552 /* dump seek tables */
553 src->vts_tmapt = src->vts_file->vts_tmapt;
554 if (src->vts_tmapt) {
557 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
558 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
559 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
560 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
561 src->vts_tmapt->tmap_offset[i]);
562 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
563 src->vts_tmapt->tmap[i].tmu);
564 GST_LOG_OBJECT (src, "Number of entries : %d",
565 src->vts_tmapt->tmap[i].nr_of_entries);
566 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
569 time = src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
570 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
571 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
572 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
573 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
577 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
580 gst_dvd_read_src_get_chapter_starts (src);
587 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
593 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
594 (_("Could not open DVD title %d"), title_set_nr),
595 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
600 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
601 (_("Could not open DVD title %d"), title_set_nr),
602 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
607 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
608 (_("Could not open DVD title %d. Interactive titles are not supported "
609 "by this element"), title_set_nr),
610 ("Commands-only PGC, not supported, use rsndvdbin"));
615 /* FIXME: double-check this function, compare against original */
617 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
619 /* Check if we're entering an angle block. */
620 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
623 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
629 /* Returns true if the pack is a NAV pack */
631 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
633 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
636 /* Check that this is substream 0 (PCI) */
640 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
643 /* Check that this is substream 1 (DSI) */
644 if (data[0x406] != 1)
647 /* Check sizes of PCI and DSI packets */
648 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
651 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
654 /* Read the DSI packet into the provided struct and check it */
655 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
656 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
662 /* find time for sector from index, returns NONE if there is no exact match */
664 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
668 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
669 return GST_CLOCK_TIME_NONE;
671 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
672 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
673 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
674 return src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
679 return (GstClockTime) 0;
681 return GST_CLOCK_TIME_NONE;
684 /* returns the sector in the index at (or before) the given time, or -1 */
686 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
690 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
694 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
695 GstClockTime entry_time;
697 entry_time = src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
698 if (entry_time <= ts) {
699 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
701 if (entry_time >= ts) {
715 GST_DVD_READ_ERROR = -1,
716 GST_DVD_READ_EOS = -2,
717 GST_DVD_READ_AGAIN = -3
720 static GstDvdReadReturn
721 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
726 guint8 oneblock[DVD_VIDEO_LB_LEN];
728 guint next_vobu, cur_output_size;
734 seg = &(GST_BASE_SRC (src)->segment);
736 /* playback by cell in this pgc, starting at the cell for our chapter */
738 src->cur_cell = src->start_cell;
742 if (src->cur_cell >= src->last_cell) {
743 /* advance to next chapter */
744 if (src->chapter == (src->num_chapters - 1) ||
745 (seg->format == chapter_format && seg->stop != -1 &&
746 src->chapter == (seg->stop - 1))) {
747 GST_DEBUG_OBJECT (src, "end of chapter segment");
751 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
755 gst_dvd_read_src_goto_chapter (src, src->chapter);
757 return GST_DVD_READ_AGAIN;
760 if (src->new_cell || new_seek) {
762 src->cur_cell = src->next_cell;
763 if (src->cur_cell >= src->last_cell) {
764 GST_LOG_OBJECT (src, "last cell in chapter");
769 /* take angle into account */
770 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
771 == BLOCK_TYPE_ANGLE_BLOCK)
772 src->cur_cell += angle;
774 /* calculate next cell */
776 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
778 /* we loop until we're out of this cell */
779 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
780 src->new_cell = FALSE;
781 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
785 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
786 src->new_cell = TRUE;
787 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
789 return GST_DVD_READ_AGAIN;
792 /* read NAV packet */
797 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
801 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
802 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
805 if (retries < 2000) {
808 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
814 /* determine where we go next. These values are the ones we
815 * mostly care about */
816 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
818 /* If we're not at the end of this cell, we can determine the next
819 * VOBU to display using the VOBU_SRI information section of the
820 * DSI. Using this value correctly follows the current angle,
821 * avoiding the doubled scenes in The Matrix, and makes our life
824 * Otherwise, we set our next address past the end of this cell to
825 * force the code above to go to the next cell in the program. */
826 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
827 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
829 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
832 g_assert (cur_output_size < 1024);
834 /* create the buffer (TODO: use buffer pool?) */
835 buf = gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, 0);
837 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
840 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
841 /* read in and output cursize packs */
842 len = DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, data);
844 if (len != cur_output_size)
845 goto block_read_error;
847 gst_buffer_unmap (buf, data, cur_output_size * DVD_VIDEO_LB_LEN);
848 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
849 GST_BUFFER_TIMESTAMP (buf) =
850 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
854 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
856 src->cur_pack = next_vobu;
858 next_time = GST_BUFFER_TIMESTAMP (buf);
859 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
860 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
861 next_time > seg->stop + 5 * GST_SECOND) {
862 GST_DEBUG_OBJECT (src, "end of TIME segment");
866 return GST_DVD_READ_OK;
871 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
872 return GST_DVD_READ_EOS;
876 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
877 return GST_DVD_READ_ERROR;
881 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
882 cur_output_size, src->cur_pack);
883 gst_buffer_unmap (buf, data, 0);
884 gst_buffer_unref (buf);
885 return GST_DVD_READ_ERROR;
889 /* we don't cache the result on purpose */
891 gst_dvd_read_descrambler_available (void)
897 module = g_module_open ("libdvdcss", 0);
898 if (module != NULL) {
899 res = g_module_symbol (module, "dvdcss_open", &sym);
900 g_module_close (module);
909 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
911 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
915 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
917 srcpad = GST_BASE_SRC (src)->srcpad;
919 if (src->need_newsegment) {
922 gst_segment_init (&seg, GST_FORMAT_BYTES);
923 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
926 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
927 src->need_newsegment = FALSE;
931 gst_dvd_read_src_goto_title (src, src->title, src->angle);
932 gst_dvd_read_src_goto_chapter (src, src->chapter);
934 src->new_seek = FALSE;
935 src->change_cell = TRUE;
938 if (src->title_lang_event_pending) {
939 gst_pad_push_event (srcpad, src->title_lang_event_pending);
940 src->title_lang_event_pending = NULL;
943 if (src->pending_clut_event) {
944 gst_pad_push_event (srcpad, src->pending_clut_event);
945 src->pending_clut_event = NULL;
950 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
951 } while (res == GST_DVD_READ_AGAIN);
954 case GST_DVD_READ_ERROR:{
955 /* FIXME: figure out a way to detect if scrambling is the problem */
956 if (!gst_dvd_read_descrambler_available ()) {
957 GST_ELEMENT_ERROR (src, RESOURCE, READ,
958 (_("Could not read DVD. This may be because the DVD is encrypted "
959 "and a DVD decryption library is not installed.")), (NULL));
961 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
964 return GST_FLOW_ERROR;
966 case GST_DVD_READ_EOS:{
967 return GST_FLOW_UNEXPECTED;
969 case GST_DVD_READ_OK:{
970 src->change_cell = FALSE;
977 g_return_val_if_reached (GST_FLOW_UNEXPECTED);
981 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
982 const GValue * value, GParamSpec * pspec)
984 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
987 GST_OBJECT_LOCK (src);
988 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED);
993 g_warning ("%s: property '%s' needs to be set before the device is "
994 "opened", GST_ELEMENT_NAME (src), pspec->name);
998 g_free (src->location);
999 /* clear the filename if we get a NULL (is that possible?) */
1000 if (g_value_get_string (value) == NULL) {
1001 src->location = g_strdup ("/dev/dvd");
1003 src->location = g_strdup (g_value_get_string (value));
1008 src->uri_title = g_value_get_int (value);
1010 src->title = src->uri_title - 1;
1011 src->new_seek = TRUE;
1015 src->uri_chapter = g_value_get_int (value);
1017 src->chapter = src->uri_chapter - 1;
1018 src->new_seek = TRUE;
1022 src->uri_angle = g_value_get_int (value);
1024 src->angle = src->uri_angle - 1;
1028 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1032 GST_OBJECT_UNLOCK (src);
1036 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1039 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1041 GST_OBJECT_LOCK (src);
1045 g_value_set_string (value, src->location);
1048 g_value_set_int (value, src->uri_title);
1051 g_value_set_int (value, src->uri_chapter);
1054 g_value_set_int (value, src->uri_angle);
1057 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1061 GST_OBJECT_UNLOCK (src);
1065 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1067 gboolean ret = FALSE;
1069 if (src->dvd_title) {
1072 blocks = DVDFileSize (src->dvd_title);
1074 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1078 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1085 /*** Querying and seeking ***/
1088 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1091 GstSeekType cur_type, end_type;
1092 gint64 new_off, total;
1098 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1102 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1106 if (end_type != GST_SEEK_TYPE_NONE) {
1107 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1108 end_type != GST_SEEK_TYPE_SET) {
1109 GST_DEBUG_OBJECT (src, "end seek type not supported");
1114 if (cur_type != GST_SEEK_TYPE_SET) {
1115 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1119 if (format == angle_format) {
1120 GST_OBJECT_LOCK (src);
1121 if (new_off < 0 || new_off >= src->num_angles) {
1122 GST_OBJECT_UNLOCK (src);
1123 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1124 src->num_angles, src->num_angles);
1127 src->angle = (gint) new_off;
1128 GST_OBJECT_UNLOCK (src);
1129 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1133 if (format != chapter_format && format != title_format &&
1134 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1135 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1136 gst_format_get_name (format));
1140 if (format == GST_FORMAT_BYTES) {
1141 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1143 } else if (format == GST_FORMAT_TIME) {
1144 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1145 GST_TIME_ARGS (new_off));
1146 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1147 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1152 srcpad = GST_BASE_SRC_PAD (src);
1154 /* check whether the seek looks reasonable (ie within possible range) */
1155 if (format == GST_FORMAT_BYTES) {
1156 GST_OBJECT_LOCK (src);
1157 query_ok = gst_dvd_read_src_get_size (src, &total);
1158 GST_OBJECT_UNLOCK (src);
1160 query_ok = gst_pad_query_duration (srcpad, format, &total);
1164 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1165 gst_format_get_name (format));
1169 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1170 gst_format_get_name (format), total);
1171 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1172 gst_format_get_name (format), new_off);
1174 if (new_off >= total) {
1175 GST_DEBUG_OBJECT (src, "Seek position out of range");
1179 /* set segment to seek format; this allows us to use the do_seek
1180 * virtual function and let the base source handle all the tricky
1181 * stuff for us. We don't use the segment internally anyway */
1182 /* FIXME: can't take the stream lock here - what to do? */
1183 GST_OBJECT_LOCK (src);
1184 GST_BASE_SRC (src)->segment.format = format;
1185 GST_BASE_SRC (src)->segment.start = 0;
1186 GST_BASE_SRC (src)->segment.stop = total;
1187 GST_BASE_SRC (src)->segment.duration = total;
1188 GST_OBJECT_UNLOCK (src);
1190 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1194 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1198 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1199 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1200 *first = src->cur_pgc->cell_playback[c1].first_sector;
1201 *last = src->cur_pgc->cell_playback[c2].last_sector;
1205 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1209 src = GST_DVD_READ_SRC (basesrc);
1211 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1212 gst_format_get_name (s->format), s->position);
1214 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1215 || s->format == GST_FORMAT_TIME) {
1218 old = src->cur_pack;
1220 if (s->format == sector_format) {
1222 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1223 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %d", s->position);
1224 src->cur_pack = s->position;
1225 if (src->cur_pack < first)
1226 src->cur_pack = first;
1227 if (src->cur_pack > last)
1228 src->cur_pack = last;
1229 } else if (s->format == GST_FORMAT_TIME) {
1231 GST_DEBUG_OBJECT (src, "Format is time");
1233 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1235 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1236 GST_TIME_ARGS (s->position), sector);
1238 /* really shouldn't happen, we've checked this earlier ... */
1239 g_return_val_if_fail (sector >= 0, FALSE);
1241 src->cur_pack = sector;
1245 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1246 GST_DEBUG_OBJECT (src, "Format is byte");
1247 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1248 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1249 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1250 G_GINT64_FORMAT, s->position,
1251 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1253 src->cur_pack += first;
1256 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1257 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1258 src->cur_pack = old;
1262 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1263 } else if (s->format == chapter_format) {
1264 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1265 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1266 (gint) s->position + 1);
1269 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1270 src->chapter = s->position;
1271 } else if (s->format == title_format) {
1272 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1273 !gst_dvd_read_src_goto_chapter (src, 0)) {
1274 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1277 src->title = (gint) s->position;
1279 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1281 g_return_val_if_reached (FALSE);
1284 src->need_newsegment = TRUE;
1289 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1291 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1294 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1296 switch (GST_EVENT_TYPE (event)) {
1297 case GST_EVENT_SEEK:
1298 res = gst_dvd_read_src_handle_seek_event (src, event);
1301 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1309 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1312 GstStructure *structure;
1316 structure = gst_structure_new ("application/x-gst-dvd",
1317 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1319 /* Create a separate field for each value in the table. */
1320 for (i = 0; i < 16; i++) {
1321 g_snprintf (name, sizeof (name), "clut%02d", i);
1322 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1325 /* Create the DVD event and put the structure into it. */
1326 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1330 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1333 const gint64 one_hour = 3600 * GST_SECOND;
1334 const gint64 one_min = 60 * GST_SECOND;
1336 g_return_val_if_fail ((time->hour >> 4) < 0xa
1337 && (time->hour & 0xf) < 0xa, -1);
1338 g_return_val_if_fail ((time->minute >> 4) < 0x7
1339 && (time->minute & 0xf) < 0xa, -1);
1340 g_return_val_if_fail ((time->second >> 4) < 0x7
1341 && (time->second & 0xf) < 0xa, -1);
1343 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1344 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1345 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1351 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1356 gst_query_parse_duration (query, &format, NULL);
1359 case GST_FORMAT_TIME:{
1360 if (src->cur_pgc == NULL)
1362 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1367 case GST_FORMAT_BYTES:{
1368 if (!gst_dvd_read_src_get_size (src, &val))
1373 if (format == sector_format) {
1374 val = DVDFileSize (src->dvd_title);
1375 } else if (format == title_format) {
1376 val = src->tt_srpt->nr_of_srpts;
1377 } else if (format == chapter_format) {
1378 val = src->num_chapters;
1379 } else if (format == angle_format) {
1380 val = src->tt_srpt->title[src->title].nr_of_angles;
1382 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1383 format, gst_format_get_name (format));
1390 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1391 gst_format_get_name (format));
1393 gst_query_set_duration (query, format, val);
1398 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1403 gst_query_parse_position (query, &format, NULL);
1406 case GST_FORMAT_BYTES:{
1407 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1411 if (format == sector_format) {
1412 val = src->cur_pack;
1413 } else if (format == title_format) {
1415 } else if (format == chapter_format) {
1417 } else if (format == angle_format) {
1420 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1421 format, gst_format_get_name (format));
1428 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1429 gst_format_get_name (format));
1431 gst_query_set_position (query, format, val);
1436 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1438 GstFormat src_format, dest_format;
1439 gboolean ret = FALSE;
1440 gint64 src_val, dest_val = -1;
1442 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1444 if (src_format == dest_format) {
1450 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1451 * Note: title and chapter are counted as starting from 0 here, just like
1452 * in the context of seek events. Another note: DEFAULT format is undefined */
1454 if (src_format == GST_FORMAT_BYTES) {
1455 src_format = sector_format;
1456 src_val /= DVD_VIDEO_LB_LEN;
1459 if (src_format == sector_format) {
1461 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1462 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1463 ret = (dest_val >= 0);
1464 } else if (dest_format == GST_FORMAT_BYTES) {
1465 dest_val = src_val * DVD_VIDEO_LB_LEN;
1470 } else if (src_format == title_format) {
1472 if (dest_format == GST_FORMAT_TIME) {
1473 /* not really true, but we use this to trick the base source into
1474 * handling seeks in title-format for us (the source won't know that
1475 * we changed the title in this case) (changing titles should really
1476 * be done with an interface rather than a seek, but for now we're
1477 * stuck with this mechanism. Fix in 0.11) */
1478 dest_val = (GstClockTime) 0;
1483 } else if (src_format == chapter_format) {
1484 /* CHAPTER => xyz */
1485 if (dest_format == GST_FORMAT_TIME) {
1486 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1487 dest_val = src->chapter_starts[src_val];
1490 } else if (dest_format == sector_format) {
1494 } else if (src_format == GST_FORMAT_TIME) {
1496 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1497 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1498 ret = (dest_val >= 0);
1499 if (dest_format == GST_FORMAT_BYTES)
1500 dest_val *= DVD_VIDEO_LB_LEN;
1501 } else if (dest_format == chapter_format) {
1502 if (src->chapter_starts != NULL) {
1505 for (i = src->num_chapters - 1; i >= 0; --i) {
1506 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1525 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1532 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1534 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1536 gboolean res = TRUE;
1538 GST_LOG_OBJECT (src, "handling %s query",
1539 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1541 GST_OBJECT_LOCK (src);
1542 started = (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED));
1543 GST_OBJECT_UNLOCK (src);
1546 GST_DEBUG_OBJECT (src, "query failed: not started");
1550 switch (GST_QUERY_TYPE (query)) {
1551 case GST_QUERY_DURATION:
1552 GST_OBJECT_LOCK (src);
1553 res = gst_dvd_read_src_do_duration_query (src, query);
1554 GST_OBJECT_UNLOCK (src);
1556 case GST_QUERY_POSITION:
1557 GST_OBJECT_LOCK (src);
1558 res = gst_dvd_read_src_do_position_query (src, query);
1559 GST_OBJECT_UNLOCK (src);
1561 case GST_QUERY_CONVERT:
1562 GST_OBJECT_LOCK (src);
1563 res = gst_dvd_read_src_do_convert_query (src, query);
1564 GST_OBJECT_UNLOCK (src);
1567 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1575 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1577 gint seek_to = src->cur_pack;
1578 gint chapter, next, cur, i;
1580 /* retrieve position */
1582 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1583 seek_to, angle, src->num_chapters);
1585 for (i = 0; i < src->num_chapters; i++) {
1588 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1589 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1591 for (next = cur = c1; cur < c2;) {
1592 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1593 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1594 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1595 if (seek_to >= first && seek_to <= last) {
1596 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1601 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1603 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1607 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1613 /* so chapter $chapter and cell $cur contain our sector
1614 * of interest. Let's go there! */
1615 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1618 gst_dvd_read_src_goto_chapter (src, chapter);
1619 src->cur_cell = cur;
1620 src->next_cell = next;
1621 src->new_cell = FALSE;
1622 src->cur_pack = seek_to;
1629 /*** URI interface ***/
1632 gst_dvd_read_src_uri_get_type (GType type)
1638 gst_dvd_read_src_uri_get_protocols (GType type)
1640 static gchar *protocols[] = { (gchar *) "dvd", NULL };
1645 static const gchar *
1646 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1648 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1650 GST_OBJECT_LOCK (src);
1652 g_free (src->last_uri);
1653 src->last_uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title,
1654 src->uri_chapter, src->uri_angle);
1656 GST_OBJECT_UNLOCK (src);
1658 return src->last_uri;
1662 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
1664 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1668 protocol = gst_uri_get_protocol (uri);
1669 ret = (protocol != NULL && g_str_equal (protocol, "dvd"));
1676 /* parse out the new t/c/a and seek to them */
1678 gchar *location = NULL;
1683 location = gst_uri_get_location (uri);
1688 GST_OBJECT_LOCK (src);
1691 src->uri_chapter = 1;
1694 strcur = strs = g_strsplit (location, ",", 0);
1695 while (strcur && *strcur) {
1698 if (!sscanf (*strcur, "%d", &val))
1702 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1709 src->uri_title = val;
1712 src->uri_chapter = val;
1715 src->uri_angle = val;
1723 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED)) {
1724 src->title = src->uri_title - 1;
1725 src->chapter = src->uri_chapter - 1;
1726 src->angle = src->uri_angle - 1;
1727 src->new_seek = TRUE;
1730 GST_OBJECT_UNLOCK (src);
1740 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1742 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1744 iface->get_type = gst_dvd_read_src_uri_get_type;
1745 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1746 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1747 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1751 plugin_init (GstPlugin * plugin)
1753 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1754 "DVD reader element based on dvdreadsrc");
1757 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1759 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1760 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1761 #endif /* ENABLE_NLS */
1763 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_SECONDARY,
1764 GST_TYPE_DVD_READ_SRC)) {
1771 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1774 "Access a DVD with dvdread",
1775 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);