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"
38 #include <gst/gst-i18n-plugin.h>
40 GST_DEBUG_CATEGORY_STATIC (gstgst_dvd_read_src_debug);
41 #define GST_CAT_DEFAULT (gstgst_dvd_read_src_debug)
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 static void gst_dvd_read_src_uri_handler_init (gpointer g_iface,
94 #define gst_dvd_read_src_parent_class parent_class
95 G_DEFINE_TYPE_WITH_CODE (GstDvdReadSrc, gst_dvd_read_src, GST_TYPE_PUSH_SRC,
96 G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
97 gst_dvd_read_src_uri_handler_init));
100 gst_dvd_read_src_finalize (GObject * object)
102 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
104 g_free (src->location);
106 G_OBJECT_CLASS (parent_class)->finalize (object);
110 gst_dvd_read_src_init (GstDvdReadSrc * src)
113 src->vts_file = NULL;
114 src->vmg_file = NULL;
115 src->dvd_title = NULL;
117 src->location = g_strdup ("/dev/dvd");
118 src->new_seek = TRUE;
119 src->new_cell = TRUE;
120 src->change_cell = FALSE;
122 src->uri_chapter = 1;
125 src->title_lang_event_pending = NULL;
126 src->pending_clut_event = NULL;
128 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
129 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
130 gst_static_pad_template_get_caps (&srctemplate));
134 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
140 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
142 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
143 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
144 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
145 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
147 gobject_class->finalize = gst_dvd_read_src_finalize;
148 gobject_class->set_property = gst_dvd_read_src_set_property;
149 gobject_class->get_property = gst_dvd_read_src_get_property;
151 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
152 g_param_spec_string ("device", "Device",
153 "DVD device location", NULL,
154 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
155 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
156 g_param_spec_int ("title", "title", "title",
157 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
158 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
159 g_param_spec_int ("chapter", "chapter", "chapter",
160 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
161 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
162 g_param_spec_int ("angle", "angle", "angle",
163 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
165 gst_element_class_add_pad_template (gstelement_class,
166 gst_static_pad_template_get (&srctemplate));
168 gst_element_class_set_static_metadata (gstelement_class, "DVD Source",
170 "Access a DVD title/chapter/angle using libdvdread",
171 "Erik Walthinsen <omega@cse.ogi.edu>");
173 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
174 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
175 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
176 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
177 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
178 gstbasesrc_class->is_seekable =
179 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
181 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
183 title_format = gst_format_register ("title", "DVD title");
184 angle_format = gst_format_register ("angle", "DVD angle");
185 sector_format = gst_format_register ("sector", "DVD sector");
186 chapter_format = gst_format_register ("chapter", "DVD chapter");
190 gst_dvd_read_src_start (GstBaseSrc * basesrc)
192 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
194 g_return_val_if_fail (src->location != NULL, FALSE);
196 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
198 if ((src->dvd = DVDOpen (src->location)) == NULL)
201 /* Load the video manager to find out the information about the titles */
202 GST_DEBUG_OBJECT (src, "Loading VMG info");
204 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
205 goto ifo_open_failed;
207 src->tt_srpt = src->vmg_file->tt_srpt;
209 src->title = src->uri_title - 1;
210 src->chapter = src->uri_chapter - 1;
211 src->angle = src->uri_angle - 1;
213 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
214 goto title_open_failed;
216 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
217 goto chapter_open_failed;
219 src->new_seek = FALSE;
220 src->change_cell = TRUE;
227 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
228 (_("Could not open DVD")),
229 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
234 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
235 (_("Could not open DVD")),
236 ("ifoOpen() failed: %s", g_strerror (errno)));
241 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
242 (_("Could not open DVD title %d"), src->uri_title), (NULL));
247 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
248 (_("Failed to go to chapter %d of DVD title %d"),
249 src->uri_chapter, src->uri_title), (NULL));
255 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
257 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
260 ifoClose (src->vts_file);
261 src->vts_file = NULL;
264 ifoClose (src->vmg_file);
265 src->vmg_file = NULL;
267 if (src->dvd_title) {
268 DVDCloseFile (src->dvd_title);
269 src->dvd_title = NULL;
275 src->new_cell = TRUE;
276 src->new_seek = TRUE;
277 src->change_cell = FALSE;
280 src->need_newsegment = TRUE;
281 src->vts_tmapt = NULL;
282 if (src->title_lang_event_pending) {
283 gst_event_unref (src->title_lang_event_pending);
284 src->title_lang_event_pending = NULL;
286 if (src->pending_clut_event) {
287 gst_event_unref (src->pending_clut_event);
288 src->pending_clut_event = NULL;
290 if (src->chapter_starts) {
291 g_free (src->chapter_starts);
292 src->chapter_starts = NULL;
295 GST_LOG_OBJECT (src, "closed DVD");
301 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
302 gint * p_pgc_id, pgc_t ** p_pgc)
307 g_assert (chapter >= 0 && chapter < src->num_chapters);
309 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
310 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
311 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
319 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
320 gint * p_first_cell, gint * p_last_cell)
323 gint pgn, pgc_id, pgn_next_ch;
325 g_assert (chapter >= 0 && chapter < src->num_chapters);
327 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
329 *p_first_cell = pgc->program_map[pgn - 1] - 1;
331 if (chapter == (src->num_chapters - 1)) {
332 *p_last_cell = pgc->nr_of_cells - 1;
334 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
335 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
338 GST_DEBUG_OBJECT (src, "Chapter %d bounds: %d %d (within %d cells)",
339 chapter, *p_first_cell, *p_last_cell, pgc->nr_of_cells);
343 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
347 /* make sure the chapter number is valid for this title */
348 if (chapter < 0 || chapter >= src->num_chapters) {
349 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
350 chapter, src->num_chapters);
351 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
354 /* determine which program chain we want to watch. This is
355 * based on the chapter number */
356 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
358 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
361 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
362 src->start_cell, src->last_cell);
364 /* retrieve position */
366 for (i = 0; i < chapter; i++) {
369 cur_title_get_chapter_bounds (src, i, &c1, &c2);
373 src->cur_pgc->cell_playback[c1].last_sector -
374 src->cur_pgc->cell_playback[c1].first_sector;
379 /* prepare reading for new cell */
380 src->new_cell = TRUE;
381 src->next_cell = src->start_cell;
383 src->chapter = chapter;
385 if (src->pending_clut_event)
386 gst_event_unref (src->pending_clut_event);
388 src->pending_clut_event =
389 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
395 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
397 GstClockTime uptohere;
400 g_free (src->chapter_starts);
401 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
403 uptohere = (GstClockTime) 0;
404 for (c = 0; c < src->num_chapters; ++c) {
405 GstClockTime chapter_duration = 0;
406 gint cell_start, cell_end, cell;
410 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
411 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
414 while (cell < cell_end) {
415 dvd_time_t *cell_duration;
417 cell_duration = &pgc->cell_playback[cell].playback_time;
418 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
419 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
422 src->chapter_starts[c] = uptohere;
424 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
425 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
426 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
427 cell_start, cell_end);
429 uptohere += chapter_duration;
434 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
437 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
444 /* make sure our title number is valid */
445 num_titles = src->tt_srpt->nr_of_srpts;
446 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
447 if (title < 0 || title >= num_titles)
450 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
451 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
454 /* make sure the angle number is valid for this title */
455 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
456 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
457 if (angle < 0 || angle >= src->num_angles) {
458 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
459 angle, src->num_angles);
460 angle = CLAMP (angle, 0, src->num_angles - 1);
463 /* load the VTS information for the title set our title is in */
464 title_set_nr = src->tt_srpt->title[title].title_set_nr;
465 src->vts_file = ifoOpen (src->dvd, title_set_nr);
466 if (src->vts_file == NULL)
467 goto ifo_open_failed;
469 src->ttn = src->tt_srpt->title[title].vts_ttn;
470 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
472 /* interactive title? */
473 if (src->num_chapters > 0 &&
474 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
475 goto commands_only_pgc;
478 /* we've got enough info, time to open the title set data */
479 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
480 if (src->dvd_title == NULL)
481 goto title_open_failed;
483 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
489 if (src->title_lang_event_pending) {
490 gst_event_unref (src->title_lang_event_pending);
491 src->title_lang_event_pending = NULL;
494 s = gst_structure_new ("application/x-gst-dvd",
495 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
497 /* so we can filter out invalid/unused streams (same for all chapters) */
498 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
501 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
502 const audio_attr_t *a;
504 /* audio stream present? */
505 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
508 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
510 t = g_strdup_printf ("audio-%d-format", i);
511 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
513 t = g_strdup_printf ("audio-%d-stream", i);
514 gst_structure_set (s, t, G_TYPE_INT, (int) i, NULL);
518 t = g_strdup_printf ("audio-%d-language", i);
519 lang_code[0] = (a->lang_code >> 8) & 0xff;
520 lang_code[1] = a->lang_code & 0xff;
521 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
527 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
528 src->title + 1, i, lang_code, (gint) a->audio_format);
532 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
533 const subp_attr_t *u;
534 const video_attr_t *v;
537 /* subpicture stream present? */
538 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
541 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
542 v = &src->vts_file->vtsi_mat->vts_video_attr;
546 if (v->display_aspect_ratio == 0) /* 4:3 */
547 sid = (pgc0->subp_control[i] >> 24) & 0x1f;
548 else if (v->display_aspect_ratio == 3) /* 16:9 */
549 sid = (pgc0->subp_control[i] >> 8) & 0x1f;
553 t = g_strdup_printf ("subpicture-%d-language", i);
554 lang_code[0] = (u->lang_code >> 8) & 0xff;
555 lang_code[1] = u->lang_code & 0xff;
556 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
557 t = g_strdup_printf ("subpicture-%d-stream", i);
558 gst_structure_set (s, t, G_TYPE_INT, (int) sid, NULL);
560 t = g_strdup_printf ("subpicture-%d-format", i);
561 gst_structure_set (s, t, G_TYPE_INT, (int) 0, NULL);
567 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
568 src->title + 1, sid, lang_code, u->type);
571 src->title_lang_event_pending =
572 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
574 /* dump seek tables */
575 src->vts_tmapt = src->vts_file->vts_tmapt;
576 if (src->vts_tmapt) {
579 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
580 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
581 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
582 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
583 src->vts_tmapt->tmap_offset[i]);
584 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
585 src->vts_tmapt->tmap[i].tmu);
586 GST_LOG_OBJECT (src, "Number of entries : %d",
587 src->vts_tmapt->tmap[i].nr_of_entries);
588 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
591 time = src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
592 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
593 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
594 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
595 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
599 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
602 gst_dvd_read_src_get_chapter_starts (src);
609 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
615 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
616 (_("Could not open DVD title %d"), title_set_nr),
617 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
622 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
623 (_("Could not open DVD title %d"), title_set_nr),
624 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
629 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
630 (_("Could not open DVD title %d. Interactive titles are not supported "
631 "by this element"), title_set_nr),
632 ("Commands-only PGC, not supported, use rsndvdbin"));
637 /* FIXME: double-check this function, compare against original */
639 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
641 /* Check if we're entering an angle block. */
642 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
645 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
651 /* Returns true if the pack is a NAV pack */
653 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
655 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
658 /* Check that this is substream 0 (PCI) */
662 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
665 /* Check that this is substream 1 (DSI) */
666 if (data[0x406] != 1)
669 /* Check sizes of PCI and DSI packets */
670 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
673 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
676 /* Read the DSI packet into the provided struct and check it */
677 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
678 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
684 /* find time for sector from index, returns NONE if there is no exact match */
686 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
690 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
691 return GST_CLOCK_TIME_NONE;
693 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
694 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
695 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
696 return src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
701 return (GstClockTime) 0;
703 return GST_CLOCK_TIME_NONE;
706 /* returns the sector in the index at (or before) the given time, or -1 */
708 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
712 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
716 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
717 GstClockTime entry_time;
719 entry_time = src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
720 if (entry_time <= ts) {
721 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
723 if (entry_time >= ts) {
737 GST_DVD_READ_ERROR = -1,
738 GST_DVD_READ_EOS = -2,
739 GST_DVD_READ_AGAIN = -3
742 static GstDvdReadReturn
743 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
748 guint8 oneblock[DVD_VIDEO_LB_LEN];
750 guint next_vobu, cur_output_size;
756 seg = &(GST_BASE_SRC (src)->segment);
758 /* playback by cell in this pgc, starting at the cell for our chapter */
760 src->cur_cell = src->start_cell;
764 if (src->cur_cell >= src->last_cell) {
765 /* advance to next chapter */
766 if (src->chapter == (src->num_chapters - 1) ||
767 (seg->format == chapter_format && seg->stop != -1 &&
768 src->chapter == (seg->stop - 1))) {
769 GST_DEBUG_OBJECT (src, "end of chapter segment");
773 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
777 gst_dvd_read_src_goto_chapter (src, src->chapter);
779 return GST_DVD_READ_AGAIN;
782 if (src->new_cell || new_seek) {
784 src->cur_cell = src->next_cell;
785 if (src->cur_cell >= src->last_cell) {
786 GST_LOG_OBJECT (src, "last cell in chapter");
791 /* take angle into account */
792 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
793 == BLOCK_TYPE_ANGLE_BLOCK)
794 src->cur_cell += angle;
796 /* calculate next cell */
798 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
800 /* we loop until we're out of this cell */
801 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
802 src->new_cell = FALSE;
803 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
807 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
808 src->new_cell = TRUE;
809 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
811 return GST_DVD_READ_AGAIN;
814 /* read NAV packet */
819 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
823 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
824 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
827 if (retries < 2000) {
830 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
836 /* determine where we go next. These values are the ones we
837 * mostly care about */
838 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
840 /* If we're not at the end of this cell, we can determine the next
841 * VOBU to display using the VOBU_SRI information section of the
842 * DSI. Using this value correctly follows the current angle,
843 * avoiding the doubled scenes in The Matrix, and makes our life
846 * Otherwise, we set our next address past the end of this cell to
847 * force the code above to go to the next cell in the program. */
848 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
849 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
851 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
854 g_assert (cur_output_size < 1024);
856 /* create the buffer (TODO: use buffer pool?) */
858 gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, NULL);
860 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
863 gst_buffer_map (buf, &map, GST_MAP_WRITE);
864 /* read in and output cursize packs */
866 DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, map.data);
868 if (len != cur_output_size)
869 goto block_read_error;
871 gst_buffer_unmap (buf, &map);
872 gst_buffer_resize (buf, 0, cur_output_size * DVD_VIDEO_LB_LEN);
873 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
874 GST_BUFFER_TIMESTAMP (buf) =
875 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
879 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
881 src->cur_pack = next_vobu;
883 next_time = GST_BUFFER_TIMESTAMP (buf);
884 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
885 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
886 next_time > seg->stop + 5 * GST_SECOND) {
887 GST_DEBUG_OBJECT (src, "end of TIME segment");
891 return GST_DVD_READ_OK;
896 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
897 return GST_DVD_READ_EOS;
901 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
902 return GST_DVD_READ_ERROR;
906 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
907 cur_output_size, src->cur_pack);
908 gst_buffer_unmap (buf, &map);
909 gst_buffer_unref (buf);
910 return GST_DVD_READ_ERROR;
914 /* we don't cache the result on purpose */
916 gst_dvd_read_descrambler_available (void)
922 module = g_module_open ("libdvdcss", 0);
923 if (module != NULL) {
924 res = g_module_symbol (module, "dvdcss_open", &sym);
925 g_module_close (module);
934 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
936 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
940 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
942 srcpad = GST_BASE_SRC (src)->srcpad;
944 if (src->need_newsegment) {
947 gst_segment_init (&seg, GST_FORMAT_BYTES);
948 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
951 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
952 src->need_newsegment = FALSE;
956 gst_dvd_read_src_goto_title (src, src->title, src->angle);
957 gst_dvd_read_src_goto_chapter (src, src->chapter);
959 src->new_seek = FALSE;
960 src->change_cell = TRUE;
963 if (src->title_lang_event_pending) {
964 gst_pad_push_event (srcpad, src->title_lang_event_pending);
965 src->title_lang_event_pending = NULL;
968 if (src->pending_clut_event) {
969 gst_pad_push_event (srcpad, src->pending_clut_event);
970 src->pending_clut_event = NULL;
975 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
976 } while (res == GST_DVD_READ_AGAIN);
979 case GST_DVD_READ_ERROR:{
980 /* FIXME: figure out a way to detect if scrambling is the problem */
981 if (!gst_dvd_read_descrambler_available ()) {
982 GST_ELEMENT_ERROR (src, RESOURCE, READ,
983 (_("Could not read DVD. This may be because the DVD is encrypted "
984 "and a DVD decryption library is not installed.")), (NULL));
986 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
989 return GST_FLOW_ERROR;
991 case GST_DVD_READ_EOS:{
994 case GST_DVD_READ_OK:{
995 src->change_cell = FALSE;
1002 g_return_val_if_reached (GST_FLOW_EOS);
1006 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
1007 const GValue * value, GParamSpec * pspec)
1009 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1012 GST_OBJECT_LOCK (src);
1013 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1018 g_warning ("%s: property '%s' needs to be set before the device is "
1019 "opened", GST_ELEMENT_NAME (src), pspec->name);
1023 g_free (src->location);
1024 /* clear the filename if we get a NULL (is that possible?) */
1025 if (g_value_get_string (value) == NULL) {
1026 src->location = g_strdup ("/dev/dvd");
1028 src->location = g_strdup (g_value_get_string (value));
1033 src->uri_title = g_value_get_int (value);
1035 src->title = src->uri_title - 1;
1036 src->new_seek = TRUE;
1040 src->uri_chapter = g_value_get_int (value);
1042 src->chapter = src->uri_chapter - 1;
1043 src->new_seek = TRUE;
1047 src->uri_angle = g_value_get_int (value);
1049 src->angle = src->uri_angle - 1;
1053 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1057 GST_OBJECT_UNLOCK (src);
1061 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1064 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1066 GST_OBJECT_LOCK (src);
1070 g_value_set_string (value, src->location);
1073 g_value_set_int (value, src->uri_title);
1076 g_value_set_int (value, src->uri_chapter);
1079 g_value_set_int (value, src->uri_angle);
1082 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1086 GST_OBJECT_UNLOCK (src);
1090 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1092 gboolean ret = FALSE;
1094 if (src->dvd_title) {
1097 blocks = DVDFileSize (src->dvd_title);
1099 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1103 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1110 /*** Querying and seeking ***/
1113 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1116 GstSeekType cur_type, end_type;
1117 gint64 new_off, total;
1123 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1127 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1131 if (end_type != GST_SEEK_TYPE_NONE) {
1132 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1133 end_type != GST_SEEK_TYPE_SET) {
1134 GST_DEBUG_OBJECT (src, "end seek type not supported");
1139 if (cur_type != GST_SEEK_TYPE_SET) {
1140 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1144 if (format == angle_format) {
1145 GST_OBJECT_LOCK (src);
1146 if (new_off < 0 || new_off >= src->num_angles) {
1147 GST_OBJECT_UNLOCK (src);
1148 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1149 src->num_angles, src->num_angles);
1152 src->angle = (gint) new_off;
1153 GST_OBJECT_UNLOCK (src);
1154 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1158 if (format != chapter_format && format != title_format &&
1159 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1160 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1161 gst_format_get_name (format));
1165 if (format == GST_FORMAT_BYTES) {
1166 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1168 } else if (format == GST_FORMAT_TIME) {
1169 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1170 GST_TIME_ARGS (new_off));
1171 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1172 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1177 srcpad = GST_BASE_SRC_PAD (src);
1179 /* check whether the seek looks reasonable (ie within possible range) */
1180 if (format == GST_FORMAT_BYTES) {
1181 GST_OBJECT_LOCK (src);
1182 query_ok = gst_dvd_read_src_get_size (src, &total);
1183 GST_OBJECT_UNLOCK (src);
1185 query_ok = gst_pad_query_duration (srcpad, format, &total);
1189 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1190 gst_format_get_name (format));
1194 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1195 gst_format_get_name (format), total);
1196 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1197 gst_format_get_name (format), new_off);
1199 if (new_off >= total) {
1200 GST_DEBUG_OBJECT (src, "Seek position out of range");
1204 /* set segment to seek format; this allows us to use the do_seek
1205 * virtual function and let the base source handle all the tricky
1206 * stuff for us. We don't use the segment internally anyway */
1207 /* FIXME: can't take the stream lock here - what to do? */
1208 GST_OBJECT_LOCK (src);
1209 GST_BASE_SRC (src)->segment.format = format;
1210 GST_BASE_SRC (src)->segment.start = 0;
1211 GST_BASE_SRC (src)->segment.stop = total;
1212 GST_BASE_SRC (src)->segment.duration = total;
1213 GST_OBJECT_UNLOCK (src);
1215 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1219 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1223 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1224 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1225 *first = src->cur_pgc->cell_playback[c1].first_sector;
1226 *last = src->cur_pgc->cell_playback[c2].last_sector;
1230 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1234 src = GST_DVD_READ_SRC (basesrc);
1236 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1237 gst_format_get_name (s->format), s->position);
1239 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1240 || s->format == GST_FORMAT_TIME) {
1243 old = src->cur_pack;
1245 if (s->format == sector_format) {
1247 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1248 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1250 src->cur_pack = s->position;
1251 if (src->cur_pack < first)
1252 src->cur_pack = first;
1253 if (src->cur_pack > last)
1254 src->cur_pack = last;
1255 } else if (s->format == GST_FORMAT_TIME) {
1257 GST_DEBUG_OBJECT (src, "Format is time");
1259 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1261 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1262 GST_TIME_ARGS (s->position), sector);
1264 /* really shouldn't happen, we've checked this earlier ... */
1265 g_return_val_if_fail (sector >= 0, FALSE);
1267 src->cur_pack = sector;
1271 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1272 GST_DEBUG_OBJECT (src, "Format is byte");
1273 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1274 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1275 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1276 G_GINT64_FORMAT, s->position,
1277 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1279 src->cur_pack += first;
1282 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1283 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1284 src->cur_pack = old;
1288 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1289 } else if (s->format == chapter_format) {
1290 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1291 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1292 (gint) s->position + 1);
1295 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1296 src->chapter = s->position;
1297 } else if (s->format == title_format) {
1298 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1299 !gst_dvd_read_src_goto_chapter (src, 0)) {
1300 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1303 src->title = (gint) s->position;
1305 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1307 g_return_val_if_reached (FALSE);
1310 src->need_newsegment = TRUE;
1315 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1317 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1320 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1322 switch (GST_EVENT_TYPE (event)) {
1323 case GST_EVENT_SEEK:
1324 res = gst_dvd_read_src_handle_seek_event (src, event);
1327 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1335 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1338 GstStructure *structure;
1342 structure = gst_structure_new ("application/x-gst-dvd",
1343 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1345 /* Create a separate field for each value in the table. */
1346 for (i = 0; i < 16; i++) {
1347 g_snprintf (name, sizeof (name), "clut%02d", i);
1348 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1351 /* Create the DVD event and put the structure into it. */
1352 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1356 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1359 const gint64 one_hour = 3600 * GST_SECOND;
1360 const gint64 one_min = 60 * GST_SECOND;
1362 g_return_val_if_fail ((time->hour >> 4) < 0xa
1363 && (time->hour & 0xf) < 0xa, -1);
1364 g_return_val_if_fail ((time->minute >> 4) < 0x7
1365 && (time->minute & 0xf) < 0xa, -1);
1366 g_return_val_if_fail ((time->second >> 4) < 0x7
1367 && (time->second & 0xf) < 0xa, -1);
1369 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1370 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1371 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1377 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1382 gst_query_parse_duration (query, &format, NULL);
1385 case GST_FORMAT_TIME:{
1386 if (src->cur_pgc == NULL)
1388 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1393 case GST_FORMAT_BYTES:{
1394 if (!gst_dvd_read_src_get_size (src, &val))
1399 if (format == sector_format) {
1400 val = DVDFileSize (src->dvd_title);
1401 } else if (format == title_format) {
1402 val = src->tt_srpt->nr_of_srpts;
1403 } else if (format == chapter_format) {
1404 val = src->num_chapters;
1405 } else if (format == angle_format) {
1406 val = src->tt_srpt->title[src->title].nr_of_angles;
1408 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1409 format, gst_format_get_name (format));
1416 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1417 gst_format_get_name (format));
1419 gst_query_set_duration (query, format, val);
1424 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1429 gst_query_parse_position (query, &format, NULL);
1432 case GST_FORMAT_BYTES:{
1433 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1437 if (format == sector_format) {
1438 val = src->cur_pack;
1439 } else if (format == title_format) {
1441 } else if (format == chapter_format) {
1443 } else if (format == angle_format) {
1446 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1447 format, gst_format_get_name (format));
1454 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1455 gst_format_get_name (format));
1457 gst_query_set_position (query, format, val);
1462 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1464 GstFormat src_format, dest_format;
1465 gboolean ret = FALSE;
1466 gint64 src_val, dest_val = -1;
1468 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1470 if (src_format == dest_format) {
1476 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1477 * Note: title and chapter are counted as starting from 0 here, just like
1478 * in the context of seek events. Another note: DEFAULT format is undefined */
1480 if (src_format == GST_FORMAT_BYTES) {
1481 src_format = sector_format;
1482 src_val /= DVD_VIDEO_LB_LEN;
1485 if (src_format == sector_format) {
1487 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1488 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1489 ret = (dest_val >= 0);
1490 } else if (dest_format == GST_FORMAT_BYTES) {
1491 dest_val = src_val * DVD_VIDEO_LB_LEN;
1496 } else if (src_format == title_format) {
1498 if (dest_format == GST_FORMAT_TIME) {
1499 /* not really true, but we use this to trick the base source into
1500 * handling seeks in title-format for us (the source won't know that
1501 * we changed the title in this case) (changing titles should really
1502 * be done with an interface rather than a seek, but for now we're
1503 * stuck with this mechanism. Fix in 0.11) */
1504 dest_val = (GstClockTime) 0;
1509 } else if (src_format == chapter_format) {
1510 /* CHAPTER => xyz */
1511 if (dest_format == GST_FORMAT_TIME) {
1512 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1513 dest_val = src->chapter_starts[src_val];
1516 } else if (dest_format == sector_format) {
1520 } else if (src_format == GST_FORMAT_TIME) {
1522 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1523 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1524 ret = (dest_val >= 0);
1525 if (dest_format == GST_FORMAT_BYTES)
1526 dest_val *= DVD_VIDEO_LB_LEN;
1527 } else if (dest_format == chapter_format) {
1528 if (src->chapter_starts != NULL) {
1531 for (i = src->num_chapters - 1; i >= 0; --i) {
1532 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1551 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1558 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1560 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1561 gboolean res = TRUE;
1563 GST_LOG_OBJECT (src, "handling %s query", GST_QUERY_TYPE_NAME (query));
1565 switch (GST_QUERY_TYPE (query)) {
1566 case GST_QUERY_DURATION:
1567 GST_OBJECT_LOCK (src);
1568 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1569 res = gst_dvd_read_src_do_duration_query (src, query);
1571 GST_DEBUG_OBJECT (src, "query failed: not started");
1574 GST_OBJECT_UNLOCK (src);
1576 case GST_QUERY_POSITION:
1577 GST_OBJECT_LOCK (src);
1578 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1579 res = gst_dvd_read_src_do_position_query (src, query);
1581 GST_DEBUG_OBJECT (src, "query failed: not started");
1584 GST_OBJECT_UNLOCK (src);
1586 case GST_QUERY_CONVERT:
1587 GST_OBJECT_LOCK (src);
1588 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1589 res = gst_dvd_read_src_do_convert_query (src, query);
1591 GST_DEBUG_OBJECT (src, "query failed: not started");
1594 GST_OBJECT_UNLOCK (src);
1597 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1605 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1607 gint seek_to = src->cur_pack;
1608 gint chapter, next, cur, i;
1610 /* retrieve position */
1612 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1613 seek_to, angle, src->num_chapters);
1615 for (i = 0; i < src->num_chapters; i++) {
1618 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1619 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1621 for (next = cur = c1; cur < c2;) {
1622 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1623 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1624 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1626 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1628 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1629 /* seeking to 0 should end up at first chapter in any case */
1630 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1631 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1638 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1644 /* so chapter $chapter and cell $cur contain our sector
1645 * of interest. Let's go there! */
1646 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1649 gst_dvd_read_src_goto_chapter (src, chapter);
1650 src->cur_cell = cur;
1651 src->next_cell = next;
1652 src->new_cell = FALSE;
1653 src->cur_pack = seek_to;
1660 /*** URI interface ***/
1663 gst_dvd_read_src_uri_get_type (GType type)
1668 static const gchar *const *
1669 gst_dvd_read_src_uri_get_protocols (GType type)
1671 static const gchar *protocols[] = { "dvd", NULL };
1677 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1679 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1682 GST_OBJECT_LOCK (src);
1683 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1685 GST_OBJECT_UNLOCK (src);
1691 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1694 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1696 /* parse out the new t/c/a and seek to them */
1698 gchar *location = NULL;
1703 location = gst_uri_get_location (uri);
1705 GST_OBJECT_LOCK (src);
1708 src->uri_chapter = 1;
1712 goto empty_location;
1714 strcur = strs = g_strsplit (location, ",", 0);
1715 while (strcur && *strcur) {
1718 if (!sscanf (*strcur, "%d", &val))
1722 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1729 src->uri_title = val;
1732 src->uri_chapter = val;
1735 src->uri_angle = val;
1743 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1744 src->title = src->uri_title - 1;
1745 src->chapter = src->uri_chapter - 1;
1746 src->angle = src->uri_angle - 1;
1747 src->new_seek = TRUE;
1755 GST_OBJECT_UNLOCK (src);
1762 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1764 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1766 iface->get_type = gst_dvd_read_src_uri_get_type;
1767 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1768 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1769 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1773 plugin_init (GstPlugin * plugin)
1775 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1776 "DVD reader element based on dvdreadsrc");
1779 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1781 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1782 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1783 #endif /* ENABLE_NLS */
1785 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_NONE,
1786 GST_TYPE_DVD_READ_SRC)) {
1793 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1796 "Access a DVD with dvdread",
1797 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);