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 data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
850 /* read in and output cursize packs */
851 len = DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, data);
853 if (len != cur_output_size)
854 goto block_read_error;
856 gst_buffer_unmap (buf, data, cur_output_size * DVD_VIDEO_LB_LEN);
857 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
858 GST_BUFFER_TIMESTAMP (buf) =
859 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
863 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
865 src->cur_pack = next_vobu;
867 next_time = GST_BUFFER_TIMESTAMP (buf);
868 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
869 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
870 next_time > seg->stop + 5 * GST_SECOND) {
871 GST_DEBUG_OBJECT (src, "end of TIME segment");
875 return GST_DVD_READ_OK;
880 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
881 return GST_DVD_READ_EOS;
885 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
886 return GST_DVD_READ_ERROR;
890 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
891 cur_output_size, src->cur_pack);
892 gst_buffer_unmap (buf, data, 0);
893 gst_buffer_unref (buf);
894 return GST_DVD_READ_ERROR;
898 /* we don't cache the result on purpose */
900 gst_dvd_read_descrambler_available (void)
906 module = g_module_open ("libdvdcss", 0);
907 if (module != NULL) {
908 res = g_module_symbol (module, "dvdcss_open", &sym);
909 g_module_close (module);
918 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
920 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
924 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
926 srcpad = GST_BASE_SRC (src)->srcpad;
928 if (src->need_newsegment) {
931 gst_segment_init (&seg, GST_FORMAT_BYTES);
932 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
935 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
936 src->need_newsegment = FALSE;
940 gst_dvd_read_src_goto_title (src, src->title, src->angle);
941 gst_dvd_read_src_goto_chapter (src, src->chapter);
943 src->new_seek = FALSE;
944 src->change_cell = TRUE;
947 if (src->title_lang_event_pending) {
948 gst_pad_push_event (srcpad, src->title_lang_event_pending);
949 src->title_lang_event_pending = NULL;
952 if (src->pending_clut_event) {
953 gst_pad_push_event (srcpad, src->pending_clut_event);
954 src->pending_clut_event = NULL;
959 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
960 } while (res == GST_DVD_READ_AGAIN);
963 case GST_DVD_READ_ERROR:{
964 /* FIXME: figure out a way to detect if scrambling is the problem */
965 if (!gst_dvd_read_descrambler_available ()) {
966 GST_ELEMENT_ERROR (src, RESOURCE, READ,
967 (_("Could not read DVD. This may be because the DVD is encrypted "
968 "and a DVD decryption library is not installed.")), (NULL));
970 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
973 return GST_FLOW_ERROR;
975 case GST_DVD_READ_EOS:{
978 case GST_DVD_READ_OK:{
979 src->change_cell = FALSE;
986 g_return_val_if_reached (GST_FLOW_EOS);
990 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
991 const GValue * value, GParamSpec * pspec)
993 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
996 GST_OBJECT_LOCK (src);
997 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1002 g_warning ("%s: property '%s' needs to be set before the device is "
1003 "opened", GST_ELEMENT_NAME (src), pspec->name);
1007 g_free (src->location);
1008 /* clear the filename if we get a NULL (is that possible?) */
1009 if (g_value_get_string (value) == NULL) {
1010 src->location = g_strdup ("/dev/dvd");
1012 src->location = g_strdup (g_value_get_string (value));
1017 src->uri_title = g_value_get_int (value);
1019 src->title = src->uri_title - 1;
1020 src->new_seek = TRUE;
1024 src->uri_chapter = g_value_get_int (value);
1026 src->chapter = src->uri_chapter - 1;
1027 src->new_seek = TRUE;
1031 src->uri_angle = g_value_get_int (value);
1033 src->angle = src->uri_angle - 1;
1037 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1041 GST_OBJECT_UNLOCK (src);
1045 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1048 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1050 GST_OBJECT_LOCK (src);
1054 g_value_set_string (value, src->location);
1057 g_value_set_int (value, src->uri_title);
1060 g_value_set_int (value, src->uri_chapter);
1063 g_value_set_int (value, src->uri_angle);
1066 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1070 GST_OBJECT_UNLOCK (src);
1074 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1076 gboolean ret = FALSE;
1078 if (src->dvd_title) {
1081 blocks = DVDFileSize (src->dvd_title);
1083 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1087 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1094 /*** Querying and seeking ***/
1097 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1100 GstSeekType cur_type, end_type;
1101 gint64 new_off, total;
1107 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1111 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1115 if (end_type != GST_SEEK_TYPE_NONE) {
1116 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1117 end_type != GST_SEEK_TYPE_SET) {
1118 GST_DEBUG_OBJECT (src, "end seek type not supported");
1123 if (cur_type != GST_SEEK_TYPE_SET) {
1124 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1128 if (format == angle_format) {
1129 GST_OBJECT_LOCK (src);
1130 if (new_off < 0 || new_off >= src->num_angles) {
1131 GST_OBJECT_UNLOCK (src);
1132 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1133 src->num_angles, src->num_angles);
1136 src->angle = (gint) new_off;
1137 GST_OBJECT_UNLOCK (src);
1138 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1142 if (format != chapter_format && format != title_format &&
1143 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1144 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1145 gst_format_get_name (format));
1149 if (format == GST_FORMAT_BYTES) {
1150 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1152 } else if (format == GST_FORMAT_TIME) {
1153 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1154 GST_TIME_ARGS (new_off));
1155 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1156 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1161 srcpad = GST_BASE_SRC_PAD (src);
1163 /* check whether the seek looks reasonable (ie within possible range) */
1164 if (format == GST_FORMAT_BYTES) {
1165 GST_OBJECT_LOCK (src);
1166 query_ok = gst_dvd_read_src_get_size (src, &total);
1167 GST_OBJECT_UNLOCK (src);
1169 query_ok = gst_pad_query_duration (srcpad, format, &total);
1173 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1174 gst_format_get_name (format));
1178 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1179 gst_format_get_name (format), total);
1180 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1181 gst_format_get_name (format), new_off);
1183 if (new_off >= total) {
1184 GST_DEBUG_OBJECT (src, "Seek position out of range");
1188 /* set segment to seek format; this allows us to use the do_seek
1189 * virtual function and let the base source handle all the tricky
1190 * stuff for us. We don't use the segment internally anyway */
1191 /* FIXME: can't take the stream lock here - what to do? */
1192 GST_OBJECT_LOCK (src);
1193 GST_BASE_SRC (src)->segment.format = format;
1194 GST_BASE_SRC (src)->segment.start = 0;
1195 GST_BASE_SRC (src)->segment.stop = total;
1196 GST_BASE_SRC (src)->segment.duration = total;
1197 GST_OBJECT_UNLOCK (src);
1199 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1203 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1207 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1208 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1209 *first = src->cur_pgc->cell_playback[c1].first_sector;
1210 *last = src->cur_pgc->cell_playback[c2].last_sector;
1214 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1218 src = GST_DVD_READ_SRC (basesrc);
1220 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1221 gst_format_get_name (s->format), s->position);
1223 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1224 || s->format == GST_FORMAT_TIME) {
1227 old = src->cur_pack;
1229 if (s->format == sector_format) {
1231 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1232 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1234 src->cur_pack = s->position;
1235 if (src->cur_pack < first)
1236 src->cur_pack = first;
1237 if (src->cur_pack > last)
1238 src->cur_pack = last;
1239 } else if (s->format == GST_FORMAT_TIME) {
1241 GST_DEBUG_OBJECT (src, "Format is time");
1243 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1245 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1246 GST_TIME_ARGS (s->position), sector);
1248 /* really shouldn't happen, we've checked this earlier ... */
1249 g_return_val_if_fail (sector >= 0, FALSE);
1251 src->cur_pack = sector;
1255 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1256 GST_DEBUG_OBJECT (src, "Format is byte");
1257 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1258 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1259 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1260 G_GINT64_FORMAT, s->position,
1261 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1263 src->cur_pack += first;
1266 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1267 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1268 src->cur_pack = old;
1272 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1273 } else if (s->format == chapter_format) {
1274 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1275 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1276 (gint) s->position + 1);
1279 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1280 src->chapter = s->position;
1281 } else if (s->format == title_format) {
1282 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1283 !gst_dvd_read_src_goto_chapter (src, 0)) {
1284 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1287 src->title = (gint) s->position;
1289 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1291 g_return_val_if_reached (FALSE);
1294 src->need_newsegment = TRUE;
1299 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1301 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1304 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1306 switch (GST_EVENT_TYPE (event)) {
1307 case GST_EVENT_SEEK:
1308 res = gst_dvd_read_src_handle_seek_event (src, event);
1311 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1319 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1322 GstStructure *structure;
1326 structure = gst_structure_new ("application/x-gst-dvd",
1327 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1329 /* Create a separate field for each value in the table. */
1330 for (i = 0; i < 16; i++) {
1331 g_snprintf (name, sizeof (name), "clut%02d", i);
1332 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1335 /* Create the DVD event and put the structure into it. */
1336 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1340 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1343 const gint64 one_hour = 3600 * GST_SECOND;
1344 const gint64 one_min = 60 * GST_SECOND;
1346 g_return_val_if_fail ((time->hour >> 4) < 0xa
1347 && (time->hour & 0xf) < 0xa, -1);
1348 g_return_val_if_fail ((time->minute >> 4) < 0x7
1349 && (time->minute & 0xf) < 0xa, -1);
1350 g_return_val_if_fail ((time->second >> 4) < 0x7
1351 && (time->second & 0xf) < 0xa, -1);
1353 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1354 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1355 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1361 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1366 gst_query_parse_duration (query, &format, NULL);
1369 case GST_FORMAT_TIME:{
1370 if (src->cur_pgc == NULL)
1372 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1377 case GST_FORMAT_BYTES:{
1378 if (!gst_dvd_read_src_get_size (src, &val))
1383 if (format == sector_format) {
1384 val = DVDFileSize (src->dvd_title);
1385 } else if (format == title_format) {
1386 val = src->tt_srpt->nr_of_srpts;
1387 } else if (format == chapter_format) {
1388 val = src->num_chapters;
1389 } else if (format == angle_format) {
1390 val = src->tt_srpt->title[src->title].nr_of_angles;
1392 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1393 format, gst_format_get_name (format));
1400 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1401 gst_format_get_name (format));
1403 gst_query_set_duration (query, format, val);
1408 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1413 gst_query_parse_position (query, &format, NULL);
1416 case GST_FORMAT_BYTES:{
1417 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1421 if (format == sector_format) {
1422 val = src->cur_pack;
1423 } else if (format == title_format) {
1425 } else if (format == chapter_format) {
1427 } else if (format == angle_format) {
1430 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1431 format, gst_format_get_name (format));
1438 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1439 gst_format_get_name (format));
1441 gst_query_set_position (query, format, val);
1446 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1448 GstFormat src_format, dest_format;
1449 gboolean ret = FALSE;
1450 gint64 src_val, dest_val = -1;
1452 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1454 if (src_format == dest_format) {
1460 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1461 * Note: title and chapter are counted as starting from 0 here, just like
1462 * in the context of seek events. Another note: DEFAULT format is undefined */
1464 if (src_format == GST_FORMAT_BYTES) {
1465 src_format = sector_format;
1466 src_val /= DVD_VIDEO_LB_LEN;
1469 if (src_format == sector_format) {
1471 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1472 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1473 ret = (dest_val >= 0);
1474 } else if (dest_format == GST_FORMAT_BYTES) {
1475 dest_val = src_val * DVD_VIDEO_LB_LEN;
1480 } else if (src_format == title_format) {
1482 if (dest_format == GST_FORMAT_TIME) {
1483 /* not really true, but we use this to trick the base source into
1484 * handling seeks in title-format for us (the source won't know that
1485 * we changed the title in this case) (changing titles should really
1486 * be done with an interface rather than a seek, but for now we're
1487 * stuck with this mechanism. Fix in 0.11) */
1488 dest_val = (GstClockTime) 0;
1493 } else if (src_format == chapter_format) {
1494 /* CHAPTER => xyz */
1495 if (dest_format == GST_FORMAT_TIME) {
1496 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1497 dest_val = src->chapter_starts[src_val];
1500 } else if (dest_format == sector_format) {
1504 } else if (src_format == GST_FORMAT_TIME) {
1506 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1507 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1508 ret = (dest_val >= 0);
1509 if (dest_format == GST_FORMAT_BYTES)
1510 dest_val *= DVD_VIDEO_LB_LEN;
1511 } else if (dest_format == chapter_format) {
1512 if (src->chapter_starts != NULL) {
1515 for (i = src->num_chapters - 1; i >= 0; --i) {
1516 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1535 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1542 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1544 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1546 gboolean res = TRUE;
1548 GST_LOG_OBJECT (src, "handling %s query",
1549 gst_query_type_get_name (GST_QUERY_TYPE (query)));
1551 GST_OBJECT_LOCK (src);
1552 started = (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED));
1553 GST_OBJECT_UNLOCK (src);
1556 GST_DEBUG_OBJECT (src, "query failed: not started");
1560 switch (GST_QUERY_TYPE (query)) {
1561 case GST_QUERY_DURATION:
1562 GST_OBJECT_LOCK (src);
1563 res = gst_dvd_read_src_do_duration_query (src, query);
1564 GST_OBJECT_UNLOCK (src);
1566 case GST_QUERY_POSITION:
1567 GST_OBJECT_LOCK (src);
1568 res = gst_dvd_read_src_do_position_query (src, query);
1569 GST_OBJECT_UNLOCK (src);
1571 case GST_QUERY_CONVERT:
1572 GST_OBJECT_LOCK (src);
1573 res = gst_dvd_read_src_do_convert_query (src, query);
1574 GST_OBJECT_UNLOCK (src);
1577 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1585 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1587 gint seek_to = src->cur_pack;
1588 gint chapter, next, cur, i;
1590 /* retrieve position */
1592 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1593 seek_to, angle, src->num_chapters);
1595 for (i = 0; i < src->num_chapters; i++) {
1598 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1599 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1601 for (next = cur = c1; cur < c2;) {
1602 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1603 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1604 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1605 /* seeking to 0 should end up at first chapter in any case */
1606 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1607 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1612 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1614 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1618 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1624 /* so chapter $chapter and cell $cur contain our sector
1625 * of interest. Let's go there! */
1626 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1629 gst_dvd_read_src_goto_chapter (src, chapter);
1630 src->cur_cell = cur;
1631 src->next_cell = next;
1632 src->new_cell = FALSE;
1633 src->cur_pack = seek_to;
1640 /*** URI interface ***/
1643 gst_dvd_read_src_uri_get_type (GType type)
1648 static const gchar *const *
1649 gst_dvd_read_src_uri_get_protocols (GType type)
1651 static const gchar *protocols[] = { "dvd", NULL };
1657 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1659 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1662 GST_OBJECT_LOCK (src);
1663 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1665 GST_OBJECT_UNLOCK (src);
1671 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1674 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1676 /* parse out the new t/c/a and seek to them */
1678 gchar *location = NULL;
1683 location = gst_uri_get_location (uri);
1685 GST_OBJECT_LOCK (src);
1688 src->uri_chapter = 1;
1692 goto empty_location;
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_FLAG_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;
1735 GST_OBJECT_UNLOCK (src);
1742 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1744 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1746 iface->get_type = gst_dvd_read_src_uri_get_type;
1747 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1748 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1749 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1753 plugin_init (GstPlugin * plugin)
1755 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1756 "DVD reader element based on dvdreadsrc");
1759 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1761 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1762 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1763 #endif /* ENABLE_NLS */
1765 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_SECONDARY,
1766 GST_TYPE_DVD_READ_SRC)) {
1773 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1776 "Access a DVD with dvdread",
1777 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);