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_static_pad_template (element_class, &srctemplate);
101 gst_element_class_set_details_simple (element_class, "DVD Source",
103 "Access a DVD title/chapter/angle using libdvdread",
104 "Erik Walthinsen <omega@cse.ogi.edu>");
108 gst_dvd_read_src_finalize (GObject * object)
110 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
112 g_free (src->location);
113 g_free (src->last_uri);
115 G_OBJECT_CLASS (parent_class)->finalize (object);
119 gst_dvd_read_src_init (GstDvdReadSrc * src, GstDvdReadSrcClass * klass)
122 src->vts_file = NULL;
123 src->vmg_file = NULL;
124 src->dvd_title = NULL;
126 src->location = g_strdup ("/dev/dvd");
127 src->last_uri = NULL;
128 src->new_seek = TRUE;
129 src->new_cell = TRUE;
130 src->change_cell = FALSE;
132 src->uri_chapter = 1;
135 src->title_lang_event_pending = NULL;
136 src->pending_clut_event = NULL;
138 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
139 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
140 gst_static_pad_template_get_caps (&srctemplate));
144 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
150 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
152 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
153 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
154 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
156 gobject_class->finalize = gst_dvd_read_src_finalize;
157 gobject_class->set_property = gst_dvd_read_src_set_property;
158 gobject_class->get_property = gst_dvd_read_src_get_property;
160 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
161 g_param_spec_string ("device", "Device",
162 "DVD device location", NULL,
163 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
164 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
165 g_param_spec_int ("title", "title", "title",
166 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
167 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
168 g_param_spec_int ("chapter", "chapter", "chapter",
169 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
170 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
171 g_param_spec_int ("angle", "angle", "angle",
172 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
174 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
175 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
176 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
177 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
178 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
179 gstbasesrc_class->is_seekable =
180 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
182 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
186 gst_dvd_read_src_start (GstBaseSrc * basesrc)
188 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
190 g_return_val_if_fail (src->location != NULL, FALSE);
192 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
194 if ((src->dvd = DVDOpen (src->location)) == NULL)
197 /* Load the video manager to find out the information about the titles */
198 GST_DEBUG_OBJECT (src, "Loading VMG info");
200 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
201 goto ifo_open_failed;
203 src->tt_srpt = src->vmg_file->tt_srpt;
205 src->title = src->uri_title - 1;
206 src->chapter = src->uri_chapter - 1;
207 src->angle = src->uri_angle - 1;
209 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
210 goto title_open_failed;
212 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
213 goto chapter_open_failed;
215 src->new_seek = FALSE;
216 src->change_cell = TRUE;
223 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
224 (_("Could not open DVD")),
225 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
230 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
231 (_("Could not open DVD")),
232 ("ifoOpen() failed: %s", g_strerror (errno)));
237 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
238 (_("Could not open DVD title %d"), src->uri_title), (NULL));
243 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
244 (_("Failed to go to chapter %d of DVD title %d"),
245 src->uri_chapter, src->uri_title), (NULL));
251 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
253 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
256 ifoClose (src->vts_file);
257 src->vts_file = NULL;
260 ifoClose (src->vmg_file);
261 src->vmg_file = NULL;
263 if (src->dvd_title) {
264 DVDCloseFile (src->dvd_title);
265 src->dvd_title = NULL;
271 src->new_cell = TRUE;
272 src->new_seek = TRUE;
273 src->change_cell = FALSE;
276 src->need_newsegment = TRUE;
277 src->vts_tmapt = NULL;
278 if (src->title_lang_event_pending) {
279 gst_event_unref (src->title_lang_event_pending);
280 src->title_lang_event_pending = NULL;
282 if (src->pending_clut_event) {
283 gst_event_unref (src->pending_clut_event);
284 src->pending_clut_event = NULL;
286 if (src->chapter_starts) {
287 g_free (src->chapter_starts);
288 src->chapter_starts = NULL;
291 GST_LOG_OBJECT (src, "closed DVD");
297 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
298 gint * p_pgc_id, pgc_t ** p_pgc)
303 g_assert (chapter >= 0 && chapter < src->num_chapters);
305 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
306 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
307 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
315 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
316 gint * p_first_cell, gint * p_last_cell)
319 gint pgn, pgc_id, pgn_next_ch;
321 g_assert (chapter >= 0 && chapter < src->num_chapters);
323 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
325 *p_first_cell = pgc->program_map[pgn - 1] - 1;
327 if (chapter == (src->num_chapters - 1)) {
328 *p_last_cell = pgc->nr_of_cells;
330 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
331 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
336 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
340 /* make sure the chapter number is valid for this title */
341 if (chapter < 0 || chapter >= src->num_chapters) {
342 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
343 chapter, src->num_chapters);
344 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
347 /* determine which program chain we want to watch. This is
348 * based on the chapter number */
349 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
351 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
354 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
355 src->start_cell, src->last_cell);
357 /* retrieve position */
359 for (i = 0; i < chapter; i++) {
362 cur_title_get_chapter_bounds (src, i, &c1, &c2);
366 src->cur_pgc->cell_playback[c1].last_sector -
367 src->cur_pgc->cell_playback[c1].first_sector;
372 /* prepare reading for new cell */
373 src->new_cell = TRUE;
374 src->next_cell = src->start_cell;
376 src->chapter = chapter;
378 if (src->pending_clut_event)
379 gst_event_unref (src->pending_clut_event);
381 src->pending_clut_event =
382 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
388 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
390 GstClockTime uptohere;
393 g_free (src->chapter_starts);
394 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
396 uptohere = (GstClockTime) 0;
397 for (c = 0; c < src->num_chapters; ++c) {
398 GstClockTime chapter_duration = 0;
399 gint cell_start, cell_end, cell;
403 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
404 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
407 while (cell < cell_end) {
408 dvd_time_t *cell_duration;
410 cell_duration = &pgc->cell_playback[cell].playback_time;
411 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
412 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
415 src->chapter_starts[c] = uptohere;
417 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
418 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
419 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
420 cell_start, cell_end);
422 uptohere += chapter_duration;
427 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
430 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
437 /* make sure our title number is valid */
438 num_titles = src->tt_srpt->nr_of_srpts;
439 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
440 if (title < 0 || title >= num_titles)
443 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
444 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
447 /* make sure the angle number is valid for this title */
448 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
449 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
450 if (angle < 0 || angle >= src->num_angles) {
451 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
452 angle, src->num_angles);
453 angle = CLAMP (angle, 0, src->num_angles - 1);
456 /* load the VTS information for the title set our title is in */
457 title_set_nr = src->tt_srpt->title[title].title_set_nr;
458 src->vts_file = ifoOpen (src->dvd, title_set_nr);
459 if (src->vts_file == NULL)
460 goto ifo_open_failed;
462 src->ttn = src->tt_srpt->title[title].vts_ttn;
463 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
465 /* interactive title? */
466 if (src->num_chapters > 0 &&
467 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
468 goto commands_only_pgc;
471 /* we've got enough info, time to open the title set data */
472 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
473 if (src->dvd_title == NULL)
474 goto title_open_failed;
476 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
482 if (src->title_lang_event_pending) {
483 gst_event_unref (src->title_lang_event_pending);
484 src->title_lang_event_pending = NULL;
487 s = gst_structure_new ("application/x-gst-dvd",
488 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
490 /* so we can filter out invalid/unused streams (same for all chapters) */
491 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
494 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
495 const audio_attr_t *a;
497 /* audio stream present? */
498 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
501 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
503 t = g_strdup_printf ("audio-%d-format", i);
504 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
508 t = g_strdup_printf ("audio-%d-language", i);
509 lang_code[0] = (a->lang_code >> 8) & 0xff;
510 lang_code[1] = a->lang_code & 0xff;
511 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
517 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
518 src->title + 1, i, lang_code, (gint) a->audio_format);
522 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
523 const subp_attr_t *u;
525 /* subpicture stream present? */
526 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
529 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
532 t = g_strdup_printf ("subtitle-%d-language", i);
533 lang_code[0] = (u->lang_code >> 8) & 0xff;
534 lang_code[1] = u->lang_code & 0xff;
535 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
541 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
542 src->title + 1, i, lang_code, u->type);
545 src->title_lang_event_pending =
546 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
548 /* dump seek tables */
549 src->vts_tmapt = src->vts_file->vts_tmapt;
550 if (src->vts_tmapt) {
553 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
554 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
555 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
556 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
557 src->vts_tmapt->tmap_offset[i]);
558 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
559 src->vts_tmapt->tmap[i].tmu);
560 GST_LOG_OBJECT (src, "Number of entries : %d",
561 src->vts_tmapt->tmap[i].nr_of_entries);
562 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
565 time = src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
566 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
567 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
568 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
569 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
573 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
576 gst_dvd_read_src_get_chapter_starts (src);
583 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
589 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
590 (_("Could not open DVD title %d"), title_set_nr),
591 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
596 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
597 (_("Could not open DVD title %d"), title_set_nr),
598 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
603 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
604 (_("Could not open DVD title %d. Interactive titles are not supported "
605 "by this element"), title_set_nr),
606 ("Commands-only PGC, not supported, use rsndvdbin"));
611 /* FIXME: double-check this function, compare against original */
613 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
615 /* Check if we're entering an angle block. */
616 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
619 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
625 /* Returns true if the pack is a NAV pack */
627 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
629 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
632 /* Check that this is substream 0 (PCI) */
636 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
639 /* Check that this is substream 1 (DSI) */
640 if (data[0x406] != 1)
643 /* Check sizes of PCI and DSI packets */
644 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
647 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
650 /* Read the DSI packet into the provided struct and check it */
651 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
652 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
658 /* find time for sector from index, returns NONE if there is no exact match */
660 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
664 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
665 return GST_CLOCK_TIME_NONE;
667 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
668 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
669 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
670 return src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
675 return (GstClockTime) 0;
677 return GST_CLOCK_TIME_NONE;
680 /* returns the sector in the index at (or before) the given time, or -1 */
682 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
686 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
690 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
691 GstClockTime entry_time;
693 entry_time = src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
694 if (entry_time <= ts) {
695 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
697 if (entry_time >= ts) {
711 GST_DVD_READ_ERROR = -1,
712 GST_DVD_READ_EOS = -2,
713 GST_DVD_READ_AGAIN = -3
716 static GstDvdReadReturn
717 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
722 guint8 oneblock[DVD_VIDEO_LB_LEN];
724 guint next_vobu, cur_output_size;
729 seg = &(GST_BASE_SRC (src)->segment);
731 /* playback by cell in this pgc, starting at the cell for our chapter */
733 src->cur_cell = src->start_cell;
737 if (src->cur_cell >= src->last_cell) {
738 /* advance to next chapter */
739 if (src->chapter == (src->num_chapters - 1) ||
740 (seg->format == chapter_format && seg->stop != -1 &&
741 src->chapter == (seg->stop - 1))) {
742 GST_DEBUG_OBJECT (src, "end of chapter segment");
746 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
750 gst_dvd_read_src_goto_chapter (src, src->chapter);
752 return GST_DVD_READ_AGAIN;
755 if (src->new_cell || new_seek) {
757 src->cur_cell = src->next_cell;
758 if (src->cur_cell >= src->last_cell) {
759 GST_LOG_OBJECT (src, "last cell in chapter");
764 /* take angle into account */
765 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
766 == BLOCK_TYPE_ANGLE_BLOCK)
767 src->cur_cell += angle;
769 /* calculate next cell */
771 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
773 /* we loop until we're out of this cell */
774 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
775 src->new_cell = FALSE;
776 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
780 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
781 src->new_cell = TRUE;
782 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
784 return GST_DVD_READ_AGAIN;
787 /* read NAV packet */
792 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
796 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
797 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
800 if (retries < 2000) {
803 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
809 /* determine where we go next. These values are the ones we
810 * mostly care about */
811 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
813 /* If we're not at the end of this cell, we can determine the next
814 * VOBU to display using the VOBU_SRI information section of the
815 * DSI. Using this value correctly follows the current angle,
816 * avoiding the doubled scenes in The Matrix, and makes our life
819 * Otherwise, we set our next address past the end of this cell to
820 * force the code above to go to the next cell in the program. */
821 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
822 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
824 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
827 g_assert (cur_output_size < 1024);
829 /* create the buffer (TODO: use buffer pool?) */
830 buf = gst_buffer_new_and_alloc (cur_output_size * DVD_VIDEO_LB_LEN);
832 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
835 /* read in and output cursize packs */
836 len = DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size,
837 GST_BUFFER_DATA (buf));
839 if (len != cur_output_size)
840 goto block_read_error;
842 GST_BUFFER_SIZE (buf) = cur_output_size * DVD_VIDEO_LB_LEN;
843 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
844 GST_BUFFER_TIMESTAMP (buf) =
845 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
847 gst_buffer_set_caps (buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src)));
851 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
853 src->cur_pack = next_vobu;
855 next_time = GST_BUFFER_TIMESTAMP (buf);
856 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
857 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
858 next_time > seg->stop + 5 * GST_SECOND) {
859 GST_DEBUG_OBJECT (src, "end of TIME segment");
863 return GST_DVD_READ_OK;
868 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
869 return GST_DVD_READ_EOS;
873 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
874 return GST_DVD_READ_ERROR;
878 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
879 cur_output_size, src->cur_pack);
880 gst_buffer_unref (buf);
881 return GST_DVD_READ_ERROR;
885 /* we don't cache the result on purpose */
887 gst_dvd_read_descrambler_available (void)
893 module = g_module_open ("libdvdcss", 0);
894 if (module != NULL) {
895 res = g_module_symbol (module, "dvdcss_open", &sym);
896 g_module_close (module);
905 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
907 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
911 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
913 srcpad = GST_BASE_SRC (src)->srcpad;
915 if (src->need_newsegment) {
916 gst_pad_push_event (srcpad,
917 gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
918 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN, -1, 0));
919 src->need_newsegment = FALSE;
923 gst_dvd_read_src_goto_title (src, src->title, src->angle);
924 gst_dvd_read_src_goto_chapter (src, src->chapter);
926 src->new_seek = FALSE;
927 src->change_cell = TRUE;
930 if (src->title_lang_event_pending) {
931 gst_pad_push_event (srcpad, src->title_lang_event_pending);
932 src->title_lang_event_pending = NULL;
935 if (src->pending_clut_event) {
936 gst_pad_push_event (srcpad, src->pending_clut_event);
937 src->pending_clut_event = NULL;
942 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
943 } while (res == GST_DVD_READ_AGAIN);
946 case GST_DVD_READ_ERROR:{
947 /* FIXME: figure out a way to detect if scrambling is the problem */
948 if (!gst_dvd_read_descrambler_available ()) {
949 GST_ELEMENT_ERROR (src, RESOURCE, READ,
950 (_("Could not read DVD. This may be because the DVD is encrypted "
951 "and a DVD decryption library is not installed.")), (NULL));
953 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
956 return GST_FLOW_ERROR;
958 case GST_DVD_READ_EOS:{
959 return GST_FLOW_UNEXPECTED;
961 case GST_DVD_READ_OK:{
962 src->change_cell = FALSE;
969 g_return_val_if_reached (GST_FLOW_UNEXPECTED);
973 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
974 const GValue * value, GParamSpec * pspec)
976 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
979 GST_OBJECT_LOCK (src);
980 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED);
985 g_warning ("%s: property '%s' needs to be set before the device is "
986 "opened", GST_ELEMENT_NAME (src), pspec->name);
990 g_free (src->location);
991 /* clear the filename if we get a NULL (is that possible?) */
992 if (g_value_get_string (value) == NULL) {
993 src->location = g_strdup ("/dev/dvd");
995 src->location = g_strdup (g_value_get_string (value));
1000 src->uri_title = g_value_get_int (value);
1002 src->title = src->uri_title - 1;
1003 src->new_seek = TRUE;
1007 src->uri_chapter = g_value_get_int (value);
1009 src->chapter = src->uri_chapter - 1;
1010 src->new_seek = TRUE;
1014 src->uri_angle = g_value_get_int (value);
1016 src->angle = src->uri_angle - 1;
1020 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1024 GST_OBJECT_UNLOCK (src);
1028 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1031 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1033 GST_OBJECT_LOCK (src);
1037 g_value_set_string (value, src->location);
1040 g_value_set_int (value, src->uri_title);
1043 g_value_set_int (value, src->uri_chapter);
1046 g_value_set_int (value, src->uri_angle);
1049 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1053 GST_OBJECT_UNLOCK (src);
1057 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1059 gboolean ret = FALSE;
1061 if (src->dvd_title) {
1064 blocks = DVDFileSize (src->dvd_title);
1066 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1070 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1077 /*** Querying and seeking ***/
1080 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1083 GstSeekType cur_type, end_type;
1084 gint64 new_off, total;
1090 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1094 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1098 if (end_type != GST_SEEK_TYPE_NONE) {
1099 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1100 end_type != GST_SEEK_TYPE_SET) {
1101 GST_DEBUG_OBJECT (src, "end seek type not supported");
1106 if (cur_type != GST_SEEK_TYPE_SET) {
1107 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1111 if (format == angle_format) {
1112 GST_OBJECT_LOCK (src);
1113 if (new_off < 0 || new_off >= src->num_angles) {
1114 GST_OBJECT_UNLOCK (src);
1115 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1116 src->num_angles, src->num_angles);
1119 src->angle = (gint) new_off;
1120 GST_OBJECT_UNLOCK (src);
1121 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1125 if (format != chapter_format && format != title_format &&
1126 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1127 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1128 gst_format_get_name (format));
1132 if (format == GST_FORMAT_BYTES) {
1133 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1135 } else if (format == GST_FORMAT_TIME) {
1136 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1137 GST_TIME_ARGS (new_off));
1138 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1139 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1144 srcpad = GST_BASE_SRC_PAD (src);
1146 /* check whether the seek looks reasonable (ie within possible range) */
1147 if (format == GST_FORMAT_BYTES) {
1148 GST_OBJECT_LOCK (src);
1149 query_ok = gst_dvd_read_src_get_size (src, &total);
1150 GST_OBJECT_UNLOCK (src);
1152 query_ok = gst_pad_query_duration (srcpad, &format, &total);
1156 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1157 gst_format_get_name (format));
1161 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1162 gst_format_get_name (format), total);
1163 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1164 gst_format_get_name (format), new_off);
1166 if (new_off >= total) {
1167 GST_DEBUG_OBJECT (src, "Seek position out of range");
1171 /* set segment to seek format; this allows us to use the do_seek
1172 * virtual function and let the base source handle all the tricky
1173 * stuff for us. We don't use the segment internally anyway */
1174 /* FIXME: can't take the stream lock here - what to do? */
1175 GST_OBJECT_LOCK (src);
1176 GST_BASE_SRC (src)->segment.format = format;
1177 GST_BASE_SRC (src)->segment.start = 0;
1178 GST_BASE_SRC (src)->segment.stop = total;
1179 GST_BASE_SRC (src)->segment.duration = total;
1180 GST_OBJECT_UNLOCK (src);
1182 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1186 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1190 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1191 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1192 *first = src->cur_pgc->cell_playback[c1].first_sector;
1193 *last = src->cur_pgc->cell_playback[c2].last_sector;
1197 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1201 src = GST_DVD_READ_SRC (basesrc);
1203 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1204 gst_format_get_name (s->format), s->last_stop);
1206 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1207 || s->format == GST_FORMAT_TIME) {
1210 old = src->cur_pack;
1212 if (s->format == sector_format) {
1214 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1215 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1217 src->cur_pack = s->last_stop;
1218 if (src->cur_pack < first)
1219 src->cur_pack = first;
1220 if (src->cur_pack > last)
1221 src->cur_pack = last;
1222 } else if (s->format == GST_FORMAT_TIME) {
1224 GST_DEBUG_OBJECT (src, "Format is time");
1226 sector = gst_dvd_read_src_get_sector_from_time (src, s->last_stop);
1228 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1229 GST_TIME_ARGS (s->last_stop), sector);
1231 /* really shouldn't happen, we've checked this earlier ... */
1232 g_return_val_if_fail (sector >= 0, FALSE);
1234 src->cur_pack = sector;
1238 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1239 GST_DEBUG_OBJECT (src, "Format is byte");
1240 src->cur_pack = s->last_stop / DVD_VIDEO_LB_LEN;
1241 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->last_stop) {
1242 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1243 G_GINT64_FORMAT, s->last_stop,
1244 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1246 src->cur_pack += first;
1249 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1250 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1251 src->cur_pack = old;
1255 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1256 } else if (s->format == chapter_format) {
1257 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->last_stop)) {
1258 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1259 (gint) s->last_stop + 1);
1262 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->last_stop + 1);
1263 src->chapter = s->last_stop;
1264 } else if (s->format == title_format) {
1265 if (!gst_dvd_read_src_goto_title (src, (gint) s->last_stop, src->angle) ||
1266 !gst_dvd_read_src_goto_chapter (src, 0)) {
1267 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->last_stop);
1270 src->title = (gint) s->last_stop;
1272 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1274 g_return_val_if_reached (FALSE);
1277 src->need_newsegment = TRUE;
1282 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1284 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1287 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1289 switch (GST_EVENT_TYPE (event)) {
1290 case GST_EVENT_SEEK:
1291 res = gst_dvd_read_src_handle_seek_event (src, event);
1294 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1302 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1305 GstStructure *structure;
1309 structure = gst_structure_new ("application/x-gst-dvd",
1310 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1312 /* Create a separate field for each value in the table. */
1313 for (i = 0; i < 16; i++) {
1314 g_snprintf (name, sizeof (name), "clut%02d", i);
1315 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1318 /* Create the DVD event and put the structure into it. */
1319 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1323 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1326 const gint64 one_hour = 3600 * GST_SECOND;
1327 const gint64 one_min = 60 * GST_SECOND;
1329 g_return_val_if_fail ((time->hour >> 4) < 0xa
1330 && (time->hour & 0xf) < 0xa, -1);
1331 g_return_val_if_fail ((time->minute >> 4) < 0x7
1332 && (time->minute & 0xf) < 0xa, -1);
1333 g_return_val_if_fail ((time->second >> 4) < 0x7
1334 && (time->second & 0xf) < 0xa, -1);
1336 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1337 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1338 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1344 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1349 gst_query_parse_duration (query, &format, NULL);
1352 case GST_FORMAT_TIME:{
1353 if (src->cur_pgc == NULL)
1355 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1360 case GST_FORMAT_BYTES:{
1361 if (!gst_dvd_read_src_get_size (src, &val))
1366 if (format == sector_format) {
1367 val = DVDFileSize (src->dvd_title);
1368 } else if (format == title_format) {
1369 val = src->tt_srpt->nr_of_srpts;
1370 } else if (format == chapter_format) {
1371 val = src->num_chapters;
1372 } else if (format == angle_format) {
1373 val = src->tt_srpt->title[src->title].nr_of_angles;
1375 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1376 format, gst_format_get_name (format));
1383 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1384 gst_format_get_name (format));
1386 gst_query_set_duration (query, format, val);
1391 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1396 gst_query_parse_position (query, &format, NULL);
1399 case GST_FORMAT_BYTES:{
1400 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1404 if (format == sector_format) {
1405 val = src->cur_pack;
1406 } else if (format == title_format) {
1408 } else if (format == chapter_format) {
1410 } else if (format == angle_format) {
1413 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1414 format, gst_format_get_name (format));
1421 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1422 gst_format_get_name (format));
1424 gst_query_set_position (query, format, val);
1429 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1431 GstFormat src_format, dest_format;
1432 gboolean ret = FALSE;
1433 gint64 src_val, dest_val = -1;
1435 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1437 if (src_format == dest_format) {
1443 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1444 * Note: title and chapter are counted as starting from 0 here, just like
1445 * in the context of seek events. Another note: DEFAULT format is undefined */
1447 if (src_format == GST_FORMAT_BYTES) {
1448 src_format = sector_format;
1449 src_val /= DVD_VIDEO_LB_LEN;
1452 if (src_format == sector_format) {
1454 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1455 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1456 ret = (dest_val >= 0);
1457 } else if (dest_format == GST_FORMAT_BYTES) {
1458 dest_val = src_val * DVD_VIDEO_LB_LEN;
1463 } else if (src_format == title_format) {
1465 if (dest_format == GST_FORMAT_TIME) {
1466 /* not really true, but we use this to trick the base source into
1467 * handling seeks in title-format for us (the source won't know that
1468 * we changed the title in this case) (changing titles should really
1469 * be done with an interface rather than a seek, but for now we're
1470 * stuck with this mechanism. Fix in 0.11) */
1471 dest_val = (GstClockTime) 0;
1476 } else if (src_format == chapter_format) {
1477 /* CHAPTER => xyz */
1478 if (dest_format == GST_FORMAT_TIME) {
1479 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1480 dest_val = src->chapter_starts[src_val];
1483 } else if (dest_format == sector_format) {
1487 } else if (src_format == GST_FORMAT_TIME) {
1489 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1490 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1491 ret = (dest_val >= 0);
1492 if (dest_format == GST_FORMAT_BYTES)
1493 dest_val *= DVD_VIDEO_LB_LEN;
1494 } else if (dest_format == chapter_format) {
1495 if (src->chapter_starts != NULL) {
1498 for (i = src->num_chapters - 1; i >= 0; --i) {
1499 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1518 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1525 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1527 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1529 gboolean res = TRUE;
1531 GST_LOG_OBJECT (src, "handling %s query",
1532 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1534 GST_OBJECT_LOCK (src);
1535 started = (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED));
1536 GST_OBJECT_UNLOCK (src);
1539 GST_DEBUG_OBJECT (src, "query failed: not started");
1543 switch (GST_QUERY_TYPE (query)) {
1544 case GST_QUERY_DURATION:
1545 GST_OBJECT_LOCK (src);
1546 res = gst_dvd_read_src_do_duration_query (src, query);
1547 GST_OBJECT_UNLOCK (src);
1549 case GST_QUERY_POSITION:
1550 GST_OBJECT_LOCK (src);
1551 res = gst_dvd_read_src_do_position_query (src, query);
1552 GST_OBJECT_UNLOCK (src);
1554 case GST_QUERY_CONVERT:
1555 GST_OBJECT_LOCK (src);
1556 res = gst_dvd_read_src_do_convert_query (src, query);
1557 GST_OBJECT_UNLOCK (src);
1560 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1568 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1570 gint seek_to = src->cur_pack;
1571 gint chapter, next, cur, i;
1573 /* retrieve position */
1575 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1576 seek_to, angle, src->num_chapters);
1578 for (i = 0; i < src->num_chapters; i++) {
1581 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1582 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1584 for (next = cur = c1; cur < c2;) {
1585 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1586 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1587 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1588 /* seeking to 0 should end up at first chapter in any case */
1589 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1590 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1595 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1597 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1601 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1607 /* so chapter $chapter and cell $cur contain our sector
1608 * of interest. Let's go there! */
1609 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1612 gst_dvd_read_src_goto_chapter (src, chapter);
1613 src->cur_cell = cur;
1614 src->next_cell = next;
1615 src->new_cell = FALSE;
1616 src->cur_pack = seek_to;
1623 /*** URI interface ***/
1626 gst_dvd_read_src_uri_get_type (void)
1632 gst_dvd_read_src_uri_get_protocols (void)
1634 static gchar *protocols[] = { (gchar *) "dvd", NULL };
1639 static const gchar *
1640 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1642 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1644 GST_OBJECT_LOCK (src);
1646 g_free (src->last_uri);
1647 src->last_uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title,
1648 src->uri_chapter, src->uri_angle);
1650 GST_OBJECT_UNLOCK (src);
1652 return src->last_uri;
1656 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
1658 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1662 protocol = gst_uri_get_protocol (uri);
1663 ret = (protocol != NULL && g_str_equal (protocol, "dvd"));
1670 /* parse out the new t/c/a and seek to them */
1672 gchar *location = NULL;
1677 location = gst_uri_get_location (uri);
1682 GST_OBJECT_LOCK (src);
1685 src->uri_chapter = 1;
1688 strcur = strs = g_strsplit (location, ",", 0);
1689 while (strcur && *strcur) {
1692 if (!sscanf (*strcur, "%d", &val))
1696 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1703 src->uri_title = val;
1706 src->uri_chapter = val;
1709 src->uri_angle = val;
1717 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_STARTED)) {
1718 src->title = src->uri_title - 1;
1719 src->chapter = src->uri_chapter - 1;
1720 src->angle = src->uri_angle - 1;
1721 src->new_seek = TRUE;
1724 GST_OBJECT_UNLOCK (src);
1734 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1736 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1738 iface->get_type = gst_dvd_read_src_uri_get_type;
1739 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1740 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1741 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1745 gst_dvd_read_src_do_init (GType dvdreadsrc_type)
1747 static const GInterfaceInfo urihandler_info = {
1748 gst_dvd_read_src_uri_handler_init,
1753 g_type_add_interface_static (dvdreadsrc_type, GST_TYPE_URI_HANDLER,
1756 title_format = gst_format_register ("title", "DVD title");
1757 angle_format = gst_format_register ("angle", "DVD angle");
1758 sector_format = gst_format_register ("sector", "DVD sector");
1759 chapter_format = gst_format_register ("chapter", "DVD chapter");
1763 plugin_init (GstPlugin * plugin)
1765 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1766 "DVD reader element based on dvdreadsrc");
1769 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1771 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1772 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1773 #endif /* ENABLE_NLS */
1775 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_SECONDARY,
1776 GST_TYPE_DVD_READ_SRC)) {
1783 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1786 "Access a DVD with dvdread",
1787 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);