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);
104 G_OBJECT_CLASS (parent_class)->finalize (object);
108 gst_dvd_read_src_init (GstDvdReadSrc * src)
111 src->vts_file = NULL;
112 src->vmg_file = NULL;
113 src->dvd_title = NULL;
115 src->location = g_strdup ("/dev/dvd");
116 src->new_seek = TRUE;
117 src->new_cell = TRUE;
118 src->change_cell = FALSE;
120 src->uri_chapter = 1;
123 src->title_lang_event_pending = NULL;
124 src->pending_clut_event = NULL;
126 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
127 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
128 gst_static_pad_template_get_caps (&srctemplate));
132 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
138 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
140 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
141 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
142 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
143 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
145 gobject_class->finalize = gst_dvd_read_src_finalize;
146 gobject_class->set_property = gst_dvd_read_src_set_property;
147 gobject_class->get_property = gst_dvd_read_src_get_property;
149 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
150 g_param_spec_string ("device", "Device",
151 "DVD device location", NULL,
152 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
153 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
154 g_param_spec_int ("title", "title", "title",
155 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
156 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
157 g_param_spec_int ("chapter", "chapter", "chapter",
158 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
159 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
160 g_param_spec_int ("angle", "angle", "angle",
161 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
163 gst_element_class_add_pad_template (gstelement_class,
164 gst_static_pad_template_get (&srctemplate));
166 gst_element_class_set_details_simple (gstelement_class, "DVD Source",
168 "Access a DVD title/chapter/angle using libdvdread",
169 "Erik Walthinsen <omega@cse.ogi.edu>");
171 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
172 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
173 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
174 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
175 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
176 gstbasesrc_class->is_seekable =
177 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
179 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
181 title_format = gst_format_register ("title", "DVD title");
182 angle_format = gst_format_register ("angle", "DVD angle");
183 sector_format = gst_format_register ("sector", "DVD sector");
184 chapter_format = gst_format_register ("chapter", "DVD chapter");
188 gst_dvd_read_src_start (GstBaseSrc * basesrc)
190 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
192 g_return_val_if_fail (src->location != NULL, FALSE);
194 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
196 if ((src->dvd = DVDOpen (src->location)) == NULL)
199 /* Load the video manager to find out the information about the titles */
200 GST_DEBUG_OBJECT (src, "Loading VMG info");
202 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
203 goto ifo_open_failed;
205 src->tt_srpt = src->vmg_file->tt_srpt;
207 src->title = src->uri_title - 1;
208 src->chapter = src->uri_chapter - 1;
209 src->angle = src->uri_angle - 1;
211 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
212 goto title_open_failed;
214 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
215 goto chapter_open_failed;
217 src->new_seek = FALSE;
218 src->change_cell = TRUE;
225 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
226 (_("Could not open DVD")),
227 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
232 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
233 (_("Could not open DVD")),
234 ("ifoOpen() failed: %s", g_strerror (errno)));
239 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
240 (_("Could not open DVD title %d"), src->uri_title), (NULL));
245 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
246 (_("Failed to go to chapter %d of DVD title %d"),
247 src->uri_chapter, src->uri_title), (NULL));
253 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
255 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
258 ifoClose (src->vts_file);
259 src->vts_file = NULL;
262 ifoClose (src->vmg_file);
263 src->vmg_file = NULL;
265 if (src->dvd_title) {
266 DVDCloseFile (src->dvd_title);
267 src->dvd_title = NULL;
273 src->new_cell = TRUE;
274 src->new_seek = TRUE;
275 src->change_cell = FALSE;
278 src->need_newsegment = TRUE;
279 src->vts_tmapt = NULL;
280 if (src->title_lang_event_pending) {
281 gst_event_unref (src->title_lang_event_pending);
282 src->title_lang_event_pending = NULL;
284 if (src->pending_clut_event) {
285 gst_event_unref (src->pending_clut_event);
286 src->pending_clut_event = NULL;
288 if (src->chapter_starts) {
289 g_free (src->chapter_starts);
290 src->chapter_starts = NULL;
293 GST_LOG_OBJECT (src, "closed DVD");
299 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
300 gint * p_pgc_id, pgc_t ** p_pgc)
305 g_assert (chapter >= 0 && chapter < src->num_chapters);
307 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
308 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
309 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
317 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
318 gint * p_first_cell, gint * p_last_cell)
321 gint pgn, pgc_id, pgn_next_ch;
323 g_assert (chapter >= 0 && chapter < src->num_chapters);
325 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
327 *p_first_cell = pgc->program_map[pgn - 1] - 1;
329 if (chapter == (src->num_chapters - 1)) {
330 *p_last_cell = pgc->nr_of_cells;
332 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
333 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
338 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
342 /* make sure the chapter number is valid for this title */
343 if (chapter < 0 || chapter >= src->num_chapters) {
344 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
345 chapter, src->num_chapters);
346 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
349 /* determine which program chain we want to watch. This is
350 * based on the chapter number */
351 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
353 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
356 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
357 src->start_cell, src->last_cell);
359 /* retrieve position */
361 for (i = 0; i < chapter; i++) {
364 cur_title_get_chapter_bounds (src, i, &c1, &c2);
368 src->cur_pgc->cell_playback[c1].last_sector -
369 src->cur_pgc->cell_playback[c1].first_sector;
374 /* prepare reading for new cell */
375 src->new_cell = TRUE;
376 src->next_cell = src->start_cell;
378 src->chapter = chapter;
380 if (src->pending_clut_event)
381 gst_event_unref (src->pending_clut_event);
383 src->pending_clut_event =
384 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
390 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
392 GstClockTime uptohere;
395 g_free (src->chapter_starts);
396 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
398 uptohere = (GstClockTime) 0;
399 for (c = 0; c < src->num_chapters; ++c) {
400 GstClockTime chapter_duration = 0;
401 gint cell_start, cell_end, cell;
405 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
406 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
409 while (cell < cell_end) {
410 dvd_time_t *cell_duration;
412 cell_duration = &pgc->cell_playback[cell].playback_time;
413 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
414 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
417 src->chapter_starts[c] = uptohere;
419 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
420 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
421 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
422 cell_start, cell_end);
424 uptohere += chapter_duration;
429 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
432 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
439 /* make sure our title number is valid */
440 num_titles = src->tt_srpt->nr_of_srpts;
441 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
442 if (title < 0 || title >= num_titles)
445 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
446 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
449 /* make sure the angle number is valid for this title */
450 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
451 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
452 if (angle < 0 || angle >= src->num_angles) {
453 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
454 angle, src->num_angles);
455 angle = CLAMP (angle, 0, src->num_angles - 1);
458 /* load the VTS information for the title set our title is in */
459 title_set_nr = src->tt_srpt->title[title].title_set_nr;
460 src->vts_file = ifoOpen (src->dvd, title_set_nr);
461 if (src->vts_file == NULL)
462 goto ifo_open_failed;
464 src->ttn = src->tt_srpt->title[title].vts_ttn;
465 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
467 /* interactive title? */
468 if (src->num_chapters > 0 &&
469 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
470 goto commands_only_pgc;
473 /* we've got enough info, time to open the title set data */
474 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
475 if (src->dvd_title == NULL)
476 goto title_open_failed;
478 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
484 if (src->title_lang_event_pending) {
485 gst_event_unref (src->title_lang_event_pending);
486 src->title_lang_event_pending = NULL;
489 s = gst_structure_new ("application/x-gst-dvd",
490 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
492 /* so we can filter out invalid/unused streams (same for all chapters) */
493 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
496 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
497 const audio_attr_t *a;
499 /* audio stream present? */
500 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
503 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
505 t = g_strdup_printf ("audio-%d-format", i);
506 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
510 t = g_strdup_printf ("audio-%d-language", i);
511 lang_code[0] = (a->lang_code >> 8) & 0xff;
512 lang_code[1] = a->lang_code & 0xff;
513 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
519 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
520 src->title + 1, i, lang_code, (gint) a->audio_format);
524 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
525 const subp_attr_t *u;
526 const video_attr_t *v;
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];
534 v = &src->vts_file->vtsi_mat->vts_video_attr;
538 if (v->display_aspect_ratio == 0) /* 4:3 */
539 sid = (pgc0->subp_control[i] >> 24) & 0x1f;
540 else if (v->display_aspect_ratio == 3) /* 16:9 */
541 sid = (pgc0->subp_control[i] >> 8) & 0x1f;
545 t = g_strdup_printf ("subtitle-%d-language", sid);
546 lang_code[0] = (u->lang_code >> 8) & 0xff;
547 lang_code[1] = u->lang_code & 0xff;
548 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
554 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
555 src->title + 1, sid, lang_code, u->type);
558 src->title_lang_event_pending =
559 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
561 /* dump seek tables */
562 src->vts_tmapt = src->vts_file->vts_tmapt;
563 if (src->vts_tmapt) {
566 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
567 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
568 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
569 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
570 src->vts_tmapt->tmap_offset[i]);
571 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
572 src->vts_tmapt->tmap[i].tmu);
573 GST_LOG_OBJECT (src, "Number of entries : %d",
574 src->vts_tmapt->tmap[i].nr_of_entries);
575 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
578 time = src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
579 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
580 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
581 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
582 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
586 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
589 gst_dvd_read_src_get_chapter_starts (src);
596 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
602 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
603 (_("Could not open DVD title %d"), title_set_nr),
604 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
609 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
610 (_("Could not open DVD title %d"), title_set_nr),
611 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
616 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
617 (_("Could not open DVD title %d. Interactive titles are not supported "
618 "by this element"), title_set_nr),
619 ("Commands-only PGC, not supported, use rsndvdbin"));
624 /* FIXME: double-check this function, compare against original */
626 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
628 /* Check if we're entering an angle block. */
629 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
632 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
638 /* Returns true if the pack is a NAV pack */
640 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
642 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
645 /* Check that this is substream 0 (PCI) */
649 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
652 /* Check that this is substream 1 (DSI) */
653 if (data[0x406] != 1)
656 /* Check sizes of PCI and DSI packets */
657 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
660 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
663 /* Read the DSI packet into the provided struct and check it */
664 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
665 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
671 /* find time for sector from index, returns NONE if there is no exact match */
673 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
677 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
678 return GST_CLOCK_TIME_NONE;
680 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
681 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
682 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
683 return src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
688 return (GstClockTime) 0;
690 return GST_CLOCK_TIME_NONE;
693 /* returns the sector in the index at (or before) the given time, or -1 */
695 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
699 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
703 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
704 GstClockTime entry_time;
706 entry_time = src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
707 if (entry_time <= ts) {
708 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
710 if (entry_time >= ts) {
724 GST_DVD_READ_ERROR = -1,
725 GST_DVD_READ_EOS = -2,
726 GST_DVD_READ_AGAIN = -3
729 static GstDvdReadReturn
730 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
735 guint8 oneblock[DVD_VIDEO_LB_LEN];
737 guint next_vobu, cur_output_size;
743 seg = &(GST_BASE_SRC (src)->segment);
745 /* playback by cell in this pgc, starting at the cell for our chapter */
747 src->cur_cell = src->start_cell;
751 if (src->cur_cell >= src->last_cell) {
752 /* advance to next chapter */
753 if (src->chapter == (src->num_chapters - 1) ||
754 (seg->format == chapter_format && seg->stop != -1 &&
755 src->chapter == (seg->stop - 1))) {
756 GST_DEBUG_OBJECT (src, "end of chapter segment");
760 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
764 gst_dvd_read_src_goto_chapter (src, src->chapter);
766 return GST_DVD_READ_AGAIN;
769 if (src->new_cell || new_seek) {
771 src->cur_cell = src->next_cell;
772 if (src->cur_cell >= src->last_cell) {
773 GST_LOG_OBJECT (src, "last cell in chapter");
778 /* take angle into account */
779 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
780 == BLOCK_TYPE_ANGLE_BLOCK)
781 src->cur_cell += angle;
783 /* calculate next cell */
785 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
787 /* we loop until we're out of this cell */
788 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
789 src->new_cell = FALSE;
790 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
794 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
795 src->new_cell = TRUE;
796 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
798 return GST_DVD_READ_AGAIN;
801 /* read NAV packet */
806 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
810 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
811 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
814 if (retries < 2000) {
817 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
823 /* determine where we go next. These values are the ones we
824 * mostly care about */
825 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
827 /* If we're not at the end of this cell, we can determine the next
828 * VOBU to display using the VOBU_SRI information section of the
829 * DSI. Using this value correctly follows the current angle,
830 * avoiding the doubled scenes in The Matrix, and makes our life
833 * Otherwise, we set our next address past the end of this cell to
834 * force the code above to go to the next cell in the program. */
835 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
836 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
838 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
841 g_assert (cur_output_size < 1024);
843 /* create the buffer (TODO: use buffer pool?) */
844 buf = gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, 0);
846 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
849 gst_buffer_map (buf, &map, GST_MAP_WRITE);
850 /* read in and output cursize packs */
852 DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, map.data);
854 if (len != cur_output_size)
855 goto block_read_error;
857 gst_buffer_unmap (buf, &map);
858 gst_buffer_resize (buf, 0, cur_output_size * DVD_VIDEO_LB_LEN);
859 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
860 GST_BUFFER_TIMESTAMP (buf) =
861 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
865 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
867 src->cur_pack = next_vobu;
869 next_time = GST_BUFFER_TIMESTAMP (buf);
870 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
871 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
872 next_time > seg->stop + 5 * GST_SECOND) {
873 GST_DEBUG_OBJECT (src, "end of TIME segment");
877 return GST_DVD_READ_OK;
882 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
883 return GST_DVD_READ_EOS;
887 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
888 return GST_DVD_READ_ERROR;
892 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
893 cur_output_size, src->cur_pack);
894 gst_buffer_unmap (buf, &map);
895 gst_buffer_unref (buf);
896 return GST_DVD_READ_ERROR;
900 /* we don't cache the result on purpose */
902 gst_dvd_read_descrambler_available (void)
908 module = g_module_open ("libdvdcss", 0);
909 if (module != NULL) {
910 res = g_module_symbol (module, "dvdcss_open", &sym);
911 g_module_close (module);
920 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
922 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
926 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
928 srcpad = GST_BASE_SRC (src)->srcpad;
930 if (src->need_newsegment) {
933 gst_segment_init (&seg, GST_FORMAT_BYTES);
934 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
937 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
938 src->need_newsegment = FALSE;
942 gst_dvd_read_src_goto_title (src, src->title, src->angle);
943 gst_dvd_read_src_goto_chapter (src, src->chapter);
945 src->new_seek = FALSE;
946 src->change_cell = TRUE;
949 if (src->title_lang_event_pending) {
950 gst_pad_push_event (srcpad, src->title_lang_event_pending);
951 src->title_lang_event_pending = NULL;
954 if (src->pending_clut_event) {
955 gst_pad_push_event (srcpad, src->pending_clut_event);
956 src->pending_clut_event = NULL;
961 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
962 } while (res == GST_DVD_READ_AGAIN);
965 case GST_DVD_READ_ERROR:{
966 /* FIXME: figure out a way to detect if scrambling is the problem */
967 if (!gst_dvd_read_descrambler_available ()) {
968 GST_ELEMENT_ERROR (src, RESOURCE, READ,
969 (_("Could not read DVD. This may be because the DVD is encrypted "
970 "and a DVD decryption library is not installed.")), (NULL));
972 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
975 return GST_FLOW_ERROR;
977 case GST_DVD_READ_EOS:{
980 case GST_DVD_READ_OK:{
981 src->change_cell = FALSE;
988 g_return_val_if_reached (GST_FLOW_EOS);
992 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
993 const GValue * value, GParamSpec * pspec)
995 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
998 GST_OBJECT_LOCK (src);
999 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1004 g_warning ("%s: property '%s' needs to be set before the device is "
1005 "opened", GST_ELEMENT_NAME (src), pspec->name);
1009 g_free (src->location);
1010 /* clear the filename if we get a NULL (is that possible?) */
1011 if (g_value_get_string (value) == NULL) {
1012 src->location = g_strdup ("/dev/dvd");
1014 src->location = g_strdup (g_value_get_string (value));
1019 src->uri_title = g_value_get_int (value);
1021 src->title = src->uri_title - 1;
1022 src->new_seek = TRUE;
1026 src->uri_chapter = g_value_get_int (value);
1028 src->chapter = src->uri_chapter - 1;
1029 src->new_seek = TRUE;
1033 src->uri_angle = g_value_get_int (value);
1035 src->angle = src->uri_angle - 1;
1039 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1043 GST_OBJECT_UNLOCK (src);
1047 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1050 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1052 GST_OBJECT_LOCK (src);
1056 g_value_set_string (value, src->location);
1059 g_value_set_int (value, src->uri_title);
1062 g_value_set_int (value, src->uri_chapter);
1065 g_value_set_int (value, src->uri_angle);
1068 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1072 GST_OBJECT_UNLOCK (src);
1076 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1078 gboolean ret = FALSE;
1080 if (src->dvd_title) {
1083 blocks = DVDFileSize (src->dvd_title);
1085 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1089 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1096 /*** Querying and seeking ***/
1099 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1102 GstSeekType cur_type, end_type;
1103 gint64 new_off, total;
1109 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1113 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1117 if (end_type != GST_SEEK_TYPE_NONE) {
1118 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1119 end_type != GST_SEEK_TYPE_SET) {
1120 GST_DEBUG_OBJECT (src, "end seek type not supported");
1125 if (cur_type != GST_SEEK_TYPE_SET) {
1126 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1130 if (format == angle_format) {
1131 GST_OBJECT_LOCK (src);
1132 if (new_off < 0 || new_off >= src->num_angles) {
1133 GST_OBJECT_UNLOCK (src);
1134 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1135 src->num_angles, src->num_angles);
1138 src->angle = (gint) new_off;
1139 GST_OBJECT_UNLOCK (src);
1140 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1144 if (format != chapter_format && format != title_format &&
1145 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1146 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1147 gst_format_get_name (format));
1151 if (format == GST_FORMAT_BYTES) {
1152 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1154 } else if (format == GST_FORMAT_TIME) {
1155 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1156 GST_TIME_ARGS (new_off));
1157 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1158 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1163 srcpad = GST_BASE_SRC_PAD (src);
1165 /* check whether the seek looks reasonable (ie within possible range) */
1166 if (format == GST_FORMAT_BYTES) {
1167 GST_OBJECT_LOCK (src);
1168 query_ok = gst_dvd_read_src_get_size (src, &total);
1169 GST_OBJECT_UNLOCK (src);
1171 query_ok = gst_pad_query_duration (srcpad, format, &total);
1175 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1176 gst_format_get_name (format));
1180 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1181 gst_format_get_name (format), total);
1182 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1183 gst_format_get_name (format), new_off);
1185 if (new_off >= total) {
1186 GST_DEBUG_OBJECT (src, "Seek position out of range");
1190 /* set segment to seek format; this allows us to use the do_seek
1191 * virtual function and let the base source handle all the tricky
1192 * stuff for us. We don't use the segment internally anyway */
1193 /* FIXME: can't take the stream lock here - what to do? */
1194 GST_OBJECT_LOCK (src);
1195 GST_BASE_SRC (src)->segment.format = format;
1196 GST_BASE_SRC (src)->segment.start = 0;
1197 GST_BASE_SRC (src)->segment.stop = total;
1198 GST_BASE_SRC (src)->segment.duration = total;
1199 GST_OBJECT_UNLOCK (src);
1201 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1205 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1209 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1210 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1211 *first = src->cur_pgc->cell_playback[c1].first_sector;
1212 *last = src->cur_pgc->cell_playback[c2].last_sector;
1216 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1220 src = GST_DVD_READ_SRC (basesrc);
1222 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1223 gst_format_get_name (s->format), s->position);
1225 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1226 || s->format == GST_FORMAT_TIME) {
1229 old = src->cur_pack;
1231 if (s->format == sector_format) {
1233 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1234 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1236 src->cur_pack = s->position;
1237 if (src->cur_pack < first)
1238 src->cur_pack = first;
1239 if (src->cur_pack > last)
1240 src->cur_pack = last;
1241 } else if (s->format == GST_FORMAT_TIME) {
1243 GST_DEBUG_OBJECT (src, "Format is time");
1245 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1247 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1248 GST_TIME_ARGS (s->position), sector);
1250 /* really shouldn't happen, we've checked this earlier ... */
1251 g_return_val_if_fail (sector >= 0, FALSE);
1253 src->cur_pack = sector;
1257 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1258 GST_DEBUG_OBJECT (src, "Format is byte");
1259 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1260 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1261 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1262 G_GINT64_FORMAT, s->position,
1263 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1265 src->cur_pack += first;
1268 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1269 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1270 src->cur_pack = old;
1274 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1275 } else if (s->format == chapter_format) {
1276 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1277 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1278 (gint) s->position + 1);
1281 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1282 src->chapter = s->position;
1283 } else if (s->format == title_format) {
1284 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1285 !gst_dvd_read_src_goto_chapter (src, 0)) {
1286 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1289 src->title = (gint) s->position;
1291 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1293 g_return_val_if_reached (FALSE);
1296 src->need_newsegment = TRUE;
1301 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1303 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1306 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1308 switch (GST_EVENT_TYPE (event)) {
1309 case GST_EVENT_SEEK:
1310 res = gst_dvd_read_src_handle_seek_event (src, event);
1313 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1321 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1324 GstStructure *structure;
1328 structure = gst_structure_new ("application/x-gst-dvd",
1329 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1331 /* Create a separate field for each value in the table. */
1332 for (i = 0; i < 16; i++) {
1333 g_snprintf (name, sizeof (name), "clut%02d", i);
1334 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1337 /* Create the DVD event and put the structure into it. */
1338 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1342 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1345 const gint64 one_hour = 3600 * GST_SECOND;
1346 const gint64 one_min = 60 * GST_SECOND;
1348 g_return_val_if_fail ((time->hour >> 4) < 0xa
1349 && (time->hour & 0xf) < 0xa, -1);
1350 g_return_val_if_fail ((time->minute >> 4) < 0x7
1351 && (time->minute & 0xf) < 0xa, -1);
1352 g_return_val_if_fail ((time->second >> 4) < 0x7
1353 && (time->second & 0xf) < 0xa, -1);
1355 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1356 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1357 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1363 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1368 gst_query_parse_duration (query, &format, NULL);
1371 case GST_FORMAT_TIME:{
1372 if (src->cur_pgc == NULL)
1374 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1379 case GST_FORMAT_BYTES:{
1380 if (!gst_dvd_read_src_get_size (src, &val))
1385 if (format == sector_format) {
1386 val = DVDFileSize (src->dvd_title);
1387 } else if (format == title_format) {
1388 val = src->tt_srpt->nr_of_srpts;
1389 } else if (format == chapter_format) {
1390 val = src->num_chapters;
1391 } else if (format == angle_format) {
1392 val = src->tt_srpt->title[src->title].nr_of_angles;
1394 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1395 format, gst_format_get_name (format));
1402 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1403 gst_format_get_name (format));
1405 gst_query_set_duration (query, format, val);
1410 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1415 gst_query_parse_position (query, &format, NULL);
1418 case GST_FORMAT_BYTES:{
1419 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1423 if (format == sector_format) {
1424 val = src->cur_pack;
1425 } else if (format == title_format) {
1427 } else if (format == chapter_format) {
1429 } else if (format == angle_format) {
1432 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1433 format, gst_format_get_name (format));
1440 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1441 gst_format_get_name (format));
1443 gst_query_set_position (query, format, val);
1448 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1450 GstFormat src_format, dest_format;
1451 gboolean ret = FALSE;
1452 gint64 src_val, dest_val = -1;
1454 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1456 if (src_format == dest_format) {
1462 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1463 * Note: title and chapter are counted as starting from 0 here, just like
1464 * in the context of seek events. Another note: DEFAULT format is undefined */
1466 if (src_format == GST_FORMAT_BYTES) {
1467 src_format = sector_format;
1468 src_val /= DVD_VIDEO_LB_LEN;
1471 if (src_format == sector_format) {
1473 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1474 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1475 ret = (dest_val >= 0);
1476 } else if (dest_format == GST_FORMAT_BYTES) {
1477 dest_val = src_val * DVD_VIDEO_LB_LEN;
1482 } else if (src_format == title_format) {
1484 if (dest_format == GST_FORMAT_TIME) {
1485 /* not really true, but we use this to trick the base source into
1486 * handling seeks in title-format for us (the source won't know that
1487 * we changed the title in this case) (changing titles should really
1488 * be done with an interface rather than a seek, but for now we're
1489 * stuck with this mechanism. Fix in 0.11) */
1490 dest_val = (GstClockTime) 0;
1495 } else if (src_format == chapter_format) {
1496 /* CHAPTER => xyz */
1497 if (dest_format == GST_FORMAT_TIME) {
1498 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1499 dest_val = src->chapter_starts[src_val];
1502 } else if (dest_format == sector_format) {
1506 } else if (src_format == GST_FORMAT_TIME) {
1508 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1509 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1510 ret = (dest_val >= 0);
1511 if (dest_format == GST_FORMAT_BYTES)
1512 dest_val *= DVD_VIDEO_LB_LEN;
1513 } else if (dest_format == chapter_format) {
1514 if (src->chapter_starts != NULL) {
1517 for (i = src->num_chapters - 1; i >= 0; --i) {
1518 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1537 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1544 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1546 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1548 gboolean res = TRUE;
1550 GST_LOG_OBJECT (src, "handling %s query",
1551 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1553 GST_OBJECT_LOCK (src);
1554 started = (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED));
1555 GST_OBJECT_UNLOCK (src);
1558 GST_DEBUG_OBJECT (src, "query failed: not started");
1562 switch (GST_QUERY_TYPE (query)) {
1563 case GST_QUERY_DURATION:
1564 GST_OBJECT_LOCK (src);
1565 res = gst_dvd_read_src_do_duration_query (src, query);
1566 GST_OBJECT_UNLOCK (src);
1568 case GST_QUERY_POSITION:
1569 GST_OBJECT_LOCK (src);
1570 res = gst_dvd_read_src_do_position_query (src, query);
1571 GST_OBJECT_UNLOCK (src);
1573 case GST_QUERY_CONVERT:
1574 GST_OBJECT_LOCK (src);
1575 res = gst_dvd_read_src_do_convert_query (src, query);
1576 GST_OBJECT_UNLOCK (src);
1579 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1587 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1589 gint seek_to = src->cur_pack;
1590 gint chapter, next, cur, i;
1592 /* retrieve position */
1594 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1595 seek_to, angle, src->num_chapters);
1597 for (i = 0; i < src->num_chapters; i++) {
1600 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1601 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1603 for (next = cur = c1; cur < c2;) {
1604 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1605 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1606 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1607 /* seeking to 0 should end up at first chapter in any case */
1608 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1609 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1614 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1616 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1620 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1626 /* so chapter $chapter and cell $cur contain our sector
1627 * of interest. Let's go there! */
1628 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1631 gst_dvd_read_src_goto_chapter (src, chapter);
1632 src->cur_cell = cur;
1633 src->next_cell = next;
1634 src->new_cell = FALSE;
1635 src->cur_pack = seek_to;
1642 /*** URI interface ***/
1645 gst_dvd_read_src_uri_get_type (GType type)
1650 static const gchar *const *
1651 gst_dvd_read_src_uri_get_protocols (GType type)
1653 static const gchar *protocols[] = { "dvd", NULL };
1659 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1661 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1664 GST_OBJECT_LOCK (src);
1665 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1667 GST_OBJECT_UNLOCK (src);
1673 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1676 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1678 /* parse out the new t/c/a and seek to them */
1680 gchar *location = NULL;
1685 location = gst_uri_get_location (uri);
1687 GST_OBJECT_LOCK (src);
1690 src->uri_chapter = 1;
1694 goto empty_location;
1696 strcur = strs = g_strsplit (location, ",", 0);
1697 while (strcur && *strcur) {
1700 if (!sscanf (*strcur, "%d", &val))
1704 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1711 src->uri_title = val;
1714 src->uri_chapter = val;
1717 src->uri_angle = val;
1725 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1726 src->title = src->uri_title - 1;
1727 src->chapter = src->uri_chapter - 1;
1728 src->angle = src->uri_angle - 1;
1729 src->new_seek = TRUE;
1737 GST_OBJECT_UNLOCK (src);
1744 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1746 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1748 iface->get_type = gst_dvd_read_src_uri_get_type;
1749 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1750 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1751 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1755 plugin_init (GstPlugin * plugin)
1757 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1758 "DVD reader element based on dvdreadsrc");
1761 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1763 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1764 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1765 #endif /* ENABLE_NLS */
1767 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_SECONDARY,
1768 GST_TYPE_DVD_READ_SRC)) {
1775 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1778 "Access a DVD with dvdread",
1779 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);