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., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
35 #include "dvdreadsrc.h"
39 #include <gst/gst-i18n-plugin.h>
41 GST_DEBUG_CATEGORY_STATIC (gstgst_dvd_read_src_debug);
42 #define GST_CAT_DEFAULT (gstgst_dvd_read_src_debug)
53 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
56 GST_STATIC_CAPS ("video/mpeg, mpegversion=2, systemstream=(boolean)true"));
58 static GstFormat title_format;
59 static GstFormat angle_format;
60 static GstFormat sector_format;
61 static GstFormat chapter_format;
63 static gboolean gst_dvd_read_src_start (GstBaseSrc * basesrc);
64 static gboolean gst_dvd_read_src_stop (GstBaseSrc * basesrc);
65 static GstFlowReturn gst_dvd_read_src_create (GstPushSrc * pushsrc,
67 static gboolean gst_dvd_read_src_src_query (GstBaseSrc * basesrc,
69 static gboolean gst_dvd_read_src_src_event (GstBaseSrc * basesrc,
71 static gboolean gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title,
73 static gboolean gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src,
75 static gboolean gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, gint angle);
76 static void gst_dvd_read_src_set_property (GObject * object, guint prop_id,
77 const GValue * value, GParamSpec * pspec);
78 static void gst_dvd_read_src_get_property (GObject * object, guint prop_id,
79 GValue * value, GParamSpec * pspec);
80 static GstEvent *gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
81 const guint32 * clut);
82 static gboolean gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size);
83 static gboolean gst_dvd_read_src_do_seek (GstBaseSrc * src, GstSegment * s);
84 static gint64 gst_dvd_read_src_convert_timecode (dvd_time_t * time);
85 static gint gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src,
86 pgc_t * pgc, gint cell);
87 static GstClockTime gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src,
89 static gint gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src,
92 static void gst_dvd_read_src_uri_handler_init (gpointer g_iface,
95 #define gst_dvd_read_src_parent_class parent_class
96 G_DEFINE_TYPE_WITH_CODE (GstDvdReadSrc, gst_dvd_read_src, GST_TYPE_PUSH_SRC,
97 G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
98 gst_dvd_read_src_uri_handler_init));
101 gst_dvd_read_src_finalize (GObject * object)
103 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
105 g_free (src->location);
107 G_OBJECT_CLASS (parent_class)->finalize (object);
111 gst_dvd_read_src_init (GstDvdReadSrc * src)
114 src->vts_file = NULL;
115 src->vmg_file = NULL;
116 src->dvd_title = NULL;
118 src->location = g_strdup ("/dev/dvd");
119 src->first_seek = TRUE;
120 src->new_seek = TRUE;
121 src->new_cell = TRUE;
122 src->change_cell = FALSE;
124 src->uri_chapter = 1;
127 src->title_lang_event_pending = NULL;
128 src->pending_clut_event = NULL;
130 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
131 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
132 gst_static_pad_template_get_caps (&srctemplate));
136 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
142 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
144 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
145 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
146 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
147 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
149 gobject_class->finalize = gst_dvd_read_src_finalize;
150 gobject_class->set_property = gst_dvd_read_src_set_property;
151 gobject_class->get_property = gst_dvd_read_src_get_property;
153 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
154 g_param_spec_string ("device", "Device",
155 "DVD device location", NULL,
156 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
157 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
158 g_param_spec_int ("title", "title", "title",
159 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
160 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
161 g_param_spec_int ("chapter", "chapter", "chapter",
162 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
163 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
164 g_param_spec_int ("angle", "angle", "angle",
165 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
167 gst_element_class_add_static_pad_template (gstelement_class, &srctemplate);
169 gst_element_class_set_static_metadata (gstelement_class, "DVD Source",
171 "Access a DVD title/chapter/angle using libdvdread",
172 "Erik Walthinsen <omega@cse.ogi.edu>");
174 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
175 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
176 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
177 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
178 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
179 gstbasesrc_class->is_seekable =
180 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
182 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
184 title_format = gst_format_register ("title", "DVD title");
185 angle_format = gst_format_register ("angle", "DVD angle");
186 sector_format = gst_format_register ("sector", "DVD sector");
187 chapter_format = gst_format_register ("chapter", "DVD chapter");
191 gst_dvd_read_src_start (GstBaseSrc * basesrc)
193 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
195 g_return_val_if_fail (src->location != NULL, FALSE);
197 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
199 if ((src->dvd = DVDOpen (src->location)) == NULL)
202 /* Load the video manager to find out the information about the titles */
203 GST_DEBUG_OBJECT (src, "Loading VMG info");
205 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
206 goto ifo_open_failed;
208 src->tt_srpt = src->vmg_file->tt_srpt;
210 src->title = src->uri_title - 1;
211 src->chapter = src->uri_chapter - 1;
212 src->angle = src->uri_angle - 1;
214 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
215 goto title_open_failed;
217 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
218 goto chapter_open_failed;
220 src->new_seek = FALSE;
221 src->change_cell = TRUE;
223 src->first_seek = TRUE;
230 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
231 (_("Could not open DVD")),
232 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
237 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
238 (_("Could not open DVD")),
239 ("ifoOpen() failed: %s", g_strerror (errno)));
244 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
245 (_("Could not open DVD title %d"), src->uri_title), (NULL));
250 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
251 (_("Failed to go to chapter %d of DVD title %d"),
252 src->uri_chapter, src->uri_title), (NULL));
258 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
260 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
263 ifoClose (src->vts_file);
264 src->vts_file = NULL;
267 ifoClose (src->vmg_file);
268 src->vmg_file = NULL;
270 if (src->dvd_title) {
271 DVDCloseFile (src->dvd_title);
272 src->dvd_title = NULL;
278 src->new_cell = TRUE;
279 src->new_seek = TRUE;
280 src->change_cell = FALSE;
283 src->need_newsegment = TRUE;
284 src->vts_tmapt = NULL;
285 if (src->title_lang_event_pending) {
286 gst_event_unref (src->title_lang_event_pending);
287 src->title_lang_event_pending = NULL;
289 if (src->pending_clut_event) {
290 gst_event_unref (src->pending_clut_event);
291 src->pending_clut_event = NULL;
293 if (src->chapter_starts) {
294 g_free (src->chapter_starts);
295 src->chapter_starts = NULL;
298 GST_LOG_OBJECT (src, "closed DVD");
304 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
305 gint * p_pgc_id, pgc_t ** p_pgc)
310 g_assert (chapter >= 0 && chapter < src->num_chapters);
312 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
313 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
314 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
322 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
323 gint * p_first_cell, gint * p_last_cell)
326 gint pgn, pgc_id, pgn_next_ch;
328 g_assert (chapter >= 0 && chapter < src->num_chapters);
330 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
332 *p_first_cell = pgc->program_map[pgn - 1] - 1;
334 /* last cell is used as a 'up to boundary', not 'up to and including',
335 * i.e. it is the first cell not included in the chapter range */
336 if (chapter == (src->num_chapters - 1)) {
337 *p_last_cell = pgc->nr_of_cells;
339 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
340 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
343 GST_DEBUG_OBJECT (src, "Chapter %d bounds: %d %d (within %d cells)",
344 chapter, *p_first_cell, *p_last_cell, pgc->nr_of_cells);
348 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
351 const guint8 *palette;
353 /* make sure the chapter number is valid for this title */
354 if (chapter < 0 || chapter >= src->num_chapters) {
355 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
356 chapter, src->num_chapters);
357 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
360 /* determine which program chain we want to watch. This is
361 * based on the chapter number */
362 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
364 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
367 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
368 src->start_cell, src->last_cell);
370 /* retrieve position */
372 for (i = 0; i < chapter; i++) {
375 cur_title_get_chapter_bounds (src, i, &c1, &c2);
379 src->cur_pgc->cell_playback[c1].last_sector -
380 src->cur_pgc->cell_playback[c1].first_sector;
385 /* prepare reading for new cell */
386 src->new_cell = TRUE;
387 src->next_cell = src->start_cell;
389 src->chapter = chapter;
391 if (src->pending_clut_event)
392 gst_event_unref (src->pending_clut_event);
394 /* Work around GCC 9 compiler warning here about taking address of packed
395 * member, which may result in an unaligned pointer access */
396 palette = (const guint8 *) src->cur_pgc->palette;
397 src->pending_clut_event =
398 gst_dvd_read_src_make_clut_change_event (src, (const guint32 *) palette);
404 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
406 GstClockTime uptohere;
409 g_free (src->chapter_starts);
410 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
412 uptohere = (GstClockTime) 0;
413 for (c = 0; c < src->num_chapters; ++c) {
414 GstClockTime chapter_duration = 0;
415 gint cell_start, cell_end, cell;
419 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
420 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
423 while (cell < cell_end) {
424 dvd_time_t *cell_duration;
426 cell_duration = &pgc->cell_playback[cell].playback_time;
427 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
428 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
431 src->chapter_starts[c] = uptohere;
433 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
434 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
435 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
436 cell_start, cell_end);
438 uptohere += chapter_duration;
443 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
446 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
453 /* make sure our title number is valid */
454 num_titles = src->tt_srpt->nr_of_srpts;
455 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
456 if (title < 0 || title >= num_titles)
459 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
460 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
463 /* make sure the angle number is valid for this title */
464 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
465 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
466 if (angle < 0 || angle >= src->num_angles) {
467 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
468 angle, src->num_angles);
469 angle = CLAMP (angle, 0, src->num_angles - 1);
472 /* load the VTS information for the title set our title is in */
473 title_set_nr = src->tt_srpt->title[title].title_set_nr;
474 src->vts_file = ifoOpen (src->dvd, title_set_nr);
475 if (src->vts_file == NULL)
476 goto ifo_open_failed;
478 src->ttn = src->tt_srpt->title[title].vts_ttn;
479 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
481 /* interactive title? */
482 if (src->num_chapters > 0 &&
483 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
484 goto commands_only_pgc;
487 /* we've got enough info, time to open the title set data */
488 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
489 if (src->dvd_title == NULL)
490 goto title_open_failed;
492 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
498 if (src->title_lang_event_pending) {
499 gst_event_unref (src->title_lang_event_pending);
500 src->title_lang_event_pending = NULL;
503 s = gst_structure_new ("application/x-gst-dvd",
504 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
506 /* so we can filter out invalid/unused streams (same for all chapters) */
507 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
510 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
511 const audio_attr_t *a;
513 /* audio stream present? */
514 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
517 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
519 t = g_strdup_printf ("audio-%d-format", i);
520 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
522 t = g_strdup_printf ("audio-%d-stream", i);
523 gst_structure_set (s, t, G_TYPE_INT, (int) i, NULL);
527 t = g_strdup_printf ("audio-%d-language", i);
528 lang_code[0] = (a->lang_code >> 8) & 0xff;
529 lang_code[1] = a->lang_code & 0xff;
530 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
536 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
537 src->title + 1, i, lang_code, (gint) a->audio_format);
541 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
542 const subp_attr_t *u;
543 const video_attr_t *v;
546 /* subpicture stream present? */
547 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
550 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
551 v = &src->vts_file->vtsi_mat->vts_video_attr;
555 if (v->display_aspect_ratio == 0) /* 4:3 */
556 sid = (pgc0->subp_control[i] >> 24) & 0x1f;
557 else if (v->display_aspect_ratio == 3) /* 16:9 */
558 sid = (pgc0->subp_control[i] >> 8) & 0x1f;
562 t = g_strdup_printf ("subpicture-%d-language", i);
563 lang_code[0] = (u->lang_code >> 8) & 0xff;
564 lang_code[1] = u->lang_code & 0xff;
565 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
567 t = g_strdup_printf ("subpicture-%d-stream", i);
568 gst_structure_set (s, t, G_TYPE_INT, (int) sid, NULL);
570 t = g_strdup_printf ("subpicture-%d-format", i);
571 gst_structure_set (s, t, G_TYPE_INT, (int) 0, NULL);
577 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
578 src->title + 1, sid, lang_code, u->type);
581 src->title_lang_event_pending =
582 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
584 /* dump seek tables */
585 src->vts_tmapt = src->vts_file->vts_tmapt;
586 if (src->vts_tmapt) {
589 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
590 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
591 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
592 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
593 src->vts_tmapt->tmap_offset[i]);
594 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
595 src->vts_tmapt->tmap[i].tmu);
596 GST_LOG_OBJECT (src, "Number of entries : %d",
597 src->vts_tmapt->tmap[i].nr_of_entries);
598 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
601 time = (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
602 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
603 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
604 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
605 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
609 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
612 gst_dvd_read_src_get_chapter_starts (src);
619 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
625 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
626 (_("Could not open DVD title %d"), title_set_nr),
627 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
632 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
633 (_("Could not open DVD title %d"), title_set_nr),
634 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
639 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
640 (_("Could not open DVD title %d. Interactive titles are not supported "
641 "by this element"), title_set_nr),
642 ("Commands-only PGC, not supported, use rsndvdbin"));
647 /* FIXME: double-check this function, compare against original */
649 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
651 /* Check if we're entering an angle block. */
652 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
655 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
661 /* Returns true if the pack is a NAV pack */
663 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
665 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
668 /* Check that this is substream 0 (PCI) */
672 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
675 /* Check that this is substream 1 (DSI) */
676 if (data[0x406] != 1)
679 /* Check sizes of PCI and DSI packets */
680 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
683 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
686 /* Read the DSI packet into the provided struct and check it */
687 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
688 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
694 /* find time for sector from index, returns NONE if there is no exact match */
696 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
700 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
701 return GST_CLOCK_TIME_NONE;
703 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
704 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
705 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
706 return (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
711 return (GstClockTime) 0;
713 return GST_CLOCK_TIME_NONE;
716 /* returns the sector in the index at (or before) the given time, or -1 */
718 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
722 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
725 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[0] & 0x7fffffff;
727 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
728 GstClockTime entry_time;
731 (guint64) src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
732 if (entry_time <= ts) {
733 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
735 if (entry_time >= ts) {
749 GST_DVD_READ_ERROR = -1,
750 GST_DVD_READ_EOS = -2,
751 GST_DVD_READ_AGAIN = -3
754 static GstDvdReadReturn
755 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
760 guint8 oneblock[DVD_VIDEO_LB_LEN];
762 guint next_vobu, cur_output_size;
768 seg = &(GST_BASE_SRC (src)->segment);
770 /* playback by cell in this pgc, starting at the cell for our chapter */
772 src->cur_cell = src->start_cell;
776 if (src->cur_cell >= src->last_cell) {
777 /* advance to next chapter */
778 if (src->chapter == (src->num_chapters - 1) ||
779 (seg->format == chapter_format && seg->stop != -1 &&
780 src->chapter == (seg->stop - 1))) {
781 GST_DEBUG_OBJECT (src, "end of chapter segment");
785 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
789 gst_dvd_read_src_goto_chapter (src, src->chapter);
791 return GST_DVD_READ_AGAIN;
794 if (src->new_cell || new_seek) {
796 src->cur_cell = src->next_cell;
797 if (src->cur_cell >= src->last_cell) {
798 GST_LOG_OBJECT (src, "last cell in chapter");
803 /* take angle into account */
804 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
805 == BLOCK_TYPE_ANGLE_BLOCK)
806 src->cur_cell += angle;
808 /* calculate next cell */
810 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
812 /* we loop until we're out of this cell */
813 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
814 src->new_cell = FALSE;
815 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
819 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
820 src->new_cell = TRUE;
821 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
823 return GST_DVD_READ_AGAIN;
826 /* read NAV packet */
831 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
835 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
836 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
839 if (retries < 2000) {
842 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
848 /* determine where we go next. These values are the ones we
849 * mostly care about */
850 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
852 /* If we're not at the end of this cell, we can determine the next
853 * VOBU to display using the VOBU_SRI information section of the
854 * DSI. Using this value correctly follows the current angle,
855 * avoiding the doubled scenes in The Matrix, and makes our life
858 * Otherwise, we set our next address past the end of this cell to
859 * force the code above to go to the next cell in the program. */
860 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
861 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
863 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
866 g_assert (cur_output_size < 1024);
868 /* create the buffer (TODO: use buffer pool?) */
870 gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, NULL);
872 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
875 gst_buffer_map (buf, &map, GST_MAP_WRITE);
876 /* read in and output cursize packs */
878 DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, map.data);
880 if (len != cur_output_size)
881 goto block_read_error;
883 gst_buffer_unmap (buf, &map);
884 gst_buffer_resize (buf, 0, cur_output_size * DVD_VIDEO_LB_LEN);
885 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
886 GST_BUFFER_TIMESTAMP (buf) =
887 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
891 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
893 src->cur_pack = next_vobu;
895 next_time = GST_BUFFER_TIMESTAMP (buf);
896 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
897 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
898 next_time > seg->stop + 5 * GST_SECOND) {
899 GST_DEBUG_OBJECT (src, "end of TIME segment");
903 return GST_DVD_READ_OK;
908 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
909 return GST_DVD_READ_EOS;
913 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
914 return GST_DVD_READ_ERROR;
918 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
919 cur_output_size, src->cur_pack);
920 gst_buffer_unmap (buf, &map);
921 gst_buffer_unref (buf);
922 return GST_DVD_READ_ERROR;
926 /* we don't cache the result on purpose */
928 gst_dvd_read_descrambler_available (void)
934 module = g_module_open ("libdvdcss", 0);
935 if (module != NULL) {
936 res = g_module_symbol (module, "dvdcss_open", &sym);
937 g_module_close (module);
946 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
948 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
952 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
954 srcpad = GST_BASE_SRC (src)->srcpad;
956 if (src->need_newsegment) {
959 gst_segment_init (&seg, GST_FORMAT_BYTES);
960 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
963 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
964 src->need_newsegment = FALSE;
968 gst_dvd_read_src_goto_title (src, src->title, src->angle);
969 gst_dvd_read_src_goto_chapter (src, src->chapter);
971 src->new_seek = FALSE;
972 src->change_cell = TRUE;
975 if (src->title_lang_event_pending) {
976 gst_pad_push_event (srcpad, src->title_lang_event_pending);
977 src->title_lang_event_pending = NULL;
980 if (src->pending_clut_event) {
981 gst_pad_push_event (srcpad, src->pending_clut_event);
982 src->pending_clut_event = NULL;
987 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
988 } while (res == GST_DVD_READ_AGAIN);
991 case GST_DVD_READ_ERROR:{
992 /* FIXME: figure out a way to detect if scrambling is the problem */
993 if (!gst_dvd_read_descrambler_available ()) {
994 GST_ELEMENT_ERROR (src, RESOURCE, READ,
995 (_("Could not read DVD. This may be because the DVD is encrypted "
996 "and a DVD decryption library is not installed.")), (NULL));
998 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
1001 return GST_FLOW_ERROR;
1003 case GST_DVD_READ_EOS:{
1004 return GST_FLOW_EOS;
1006 case GST_DVD_READ_OK:{
1007 src->change_cell = FALSE;
1014 g_return_val_if_reached (GST_FLOW_EOS);
1018 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
1019 const GValue * value, GParamSpec * pspec)
1021 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1024 GST_OBJECT_LOCK (src);
1025 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1030 g_warning ("%s: property '%s' needs to be set before the device is "
1031 "opened", GST_ELEMENT_NAME (src), pspec->name);
1035 g_free (src->location);
1036 /* clear the filename if we get a NULL (is that possible?) */
1037 if (g_value_get_string (value) == NULL) {
1038 src->location = g_strdup ("/dev/dvd");
1040 src->location = g_value_dup_string (value);
1045 src->uri_title = g_value_get_int (value);
1047 src->title = src->uri_title - 1;
1048 src->new_seek = TRUE;
1052 src->uri_chapter = g_value_get_int (value);
1054 src->chapter = src->uri_chapter - 1;
1055 src->new_seek = TRUE;
1059 src->uri_angle = g_value_get_int (value);
1061 src->angle = src->uri_angle - 1;
1065 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1069 GST_OBJECT_UNLOCK (src);
1073 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1076 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1078 GST_OBJECT_LOCK (src);
1082 g_value_set_string (value, src->location);
1085 g_value_set_int (value, src->uri_title);
1088 g_value_set_int (value, src->uri_chapter);
1091 g_value_set_int (value, src->uri_angle);
1094 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1098 GST_OBJECT_UNLOCK (src);
1102 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1104 gboolean ret = FALSE;
1106 if (src->dvd_title) {
1109 blocks = DVDFileSize (src->dvd_title);
1111 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1115 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1122 /*** Querying and seeking ***/
1125 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1128 GstSeekType cur_type, end_type;
1129 gint64 new_off, total;
1135 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1139 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1143 if (end_type != GST_SEEK_TYPE_NONE) {
1144 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1145 end_type != GST_SEEK_TYPE_SET) {
1146 GST_DEBUG_OBJECT (src, "end seek type not supported");
1151 if (cur_type != GST_SEEK_TYPE_SET) {
1152 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1156 if (format == angle_format) {
1157 GST_OBJECT_LOCK (src);
1158 if (new_off < 0 || new_off >= src->num_angles) {
1159 GST_OBJECT_UNLOCK (src);
1160 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1161 src->num_angles, src->num_angles);
1164 src->angle = (gint) new_off;
1165 GST_OBJECT_UNLOCK (src);
1166 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1170 if (format != chapter_format && format != title_format &&
1171 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1172 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1173 gst_format_get_name (format));
1177 if (format == GST_FORMAT_BYTES) {
1178 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1180 } else if (format == GST_FORMAT_TIME) {
1181 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1182 GST_TIME_ARGS (new_off));
1183 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1184 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1189 srcpad = GST_BASE_SRC_PAD (src);
1191 /* check whether the seek looks reasonable (ie within possible range) */
1192 if (format == GST_FORMAT_BYTES) {
1193 GST_OBJECT_LOCK (src);
1194 query_ok = gst_dvd_read_src_get_size (src, &total);
1195 GST_OBJECT_UNLOCK (src);
1197 query_ok = gst_pad_query_duration (srcpad, format, &total);
1201 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1202 gst_format_get_name (format));
1206 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1207 gst_format_get_name (format), total);
1208 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1209 gst_format_get_name (format), new_off);
1211 if (new_off >= total) {
1212 GST_DEBUG_OBJECT (src, "Seek position out of range");
1216 /* set segment to seek format; this allows us to use the do_seek
1217 * virtual function and let the base source handle all the tricky
1218 * stuff for us. We don't use the segment internally anyway */
1219 /* FIXME: can't take the stream lock here - what to do? */
1220 GST_OBJECT_LOCK (src);
1221 GST_BASE_SRC (src)->segment.format = format;
1222 GST_BASE_SRC (src)->segment.start = 0;
1223 GST_BASE_SRC (src)->segment.stop = total;
1224 GST_BASE_SRC (src)->segment.duration = total;
1225 GST_OBJECT_UNLOCK (src);
1227 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1231 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1235 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1236 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1237 *first = src->cur_pgc->cell_playback[c1].first_sector;
1238 *last = src->cur_pgc->cell_playback[c2].last_sector;
1242 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1246 src = GST_DVD_READ_SRC (basesrc);
1248 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1249 gst_format_get_name (s->format), s->position);
1251 /* Ignore the first seek to 0, as it breaks starting playback
1252 * from another chapter by seeking back to sector 0 */
1253 if (src->first_seek && s->format == GST_FORMAT_BYTES && s->start == 0) {
1254 src->first_seek = FALSE;
1258 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1259 || s->format == GST_FORMAT_TIME) {
1262 old = src->cur_pack;
1264 if (s->format == sector_format) {
1266 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1267 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1269 src->cur_pack = s->position;
1270 if (src->cur_pack < first)
1271 src->cur_pack = first;
1272 if (src->cur_pack > last)
1273 src->cur_pack = last;
1274 } else if (s->format == GST_FORMAT_TIME) {
1276 GST_DEBUG_OBJECT (src, "Format is time");
1278 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1280 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1281 GST_TIME_ARGS (s->position), sector);
1283 /* really shouldn't happen, we've checked this earlier ... */
1284 g_return_val_if_fail (sector >= 0, FALSE);
1286 src->cur_pack = sector;
1290 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1291 GST_DEBUG_OBJECT (src, "Format is byte");
1292 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1293 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1294 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1295 G_GINT64_FORMAT, s->position,
1296 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1298 src->cur_pack += first;
1301 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1302 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1303 src->cur_pack = old;
1307 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1308 } else if (s->format == chapter_format) {
1309 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1310 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1311 (gint) s->position + 1);
1314 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1315 src->chapter = s->position;
1316 } else if (s->format == title_format) {
1317 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1318 !gst_dvd_read_src_goto_chapter (src, 0)) {
1319 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1322 src->title = (gint) s->position;
1324 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1326 g_return_val_if_reached (FALSE);
1329 src->need_newsegment = TRUE;
1334 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1336 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1339 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1341 switch (GST_EVENT_TYPE (event)) {
1342 case GST_EVENT_SEEK:
1343 res = gst_dvd_read_src_handle_seek_event (src, event);
1346 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1354 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1355 const guint32 * clut)
1357 GstStructure *structure;
1361 structure = gst_structure_new ("application/x-gst-dvd",
1362 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1364 /* Create a separate field for each value in the table. */
1365 for (i = 0; i < 16; i++) {
1366 g_snprintf (name, sizeof (name), "clut%02d", i);
1367 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1370 /* Create the DVD event and put the structure into it. */
1371 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_STICKY, structure);
1375 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1378 const gint64 one_hour = 3600 * GST_SECOND;
1379 const gint64 one_min = 60 * GST_SECOND;
1381 g_return_val_if_fail ((time->hour >> 4) < 0xa
1382 && (time->hour & 0xf) < 0xa, -1);
1383 g_return_val_if_fail ((time->minute >> 4) < 0x7
1384 && (time->minute & 0xf) < 0xa, -1);
1385 g_return_val_if_fail ((time->second >> 4) < 0x7
1386 && (time->second & 0xf) < 0xa, -1);
1388 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1389 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1390 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1396 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1401 gst_query_parse_duration (query, &format, NULL);
1404 case GST_FORMAT_TIME:{
1405 if (src->cur_pgc == NULL)
1407 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1412 case GST_FORMAT_BYTES:{
1413 if (!gst_dvd_read_src_get_size (src, &val))
1418 if (format == sector_format) {
1419 val = DVDFileSize (src->dvd_title);
1420 } else if (format == title_format) {
1421 val = src->tt_srpt->nr_of_srpts;
1422 } else if (format == chapter_format) {
1423 val = src->num_chapters;
1424 } else if (format == angle_format) {
1425 val = src->tt_srpt->title[src->title].nr_of_angles;
1427 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1428 format, gst_format_get_name (format));
1435 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1436 gst_format_get_name (format));
1438 gst_query_set_duration (query, format, val);
1443 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1448 gst_query_parse_position (query, &format, NULL);
1451 case GST_FORMAT_BYTES:{
1452 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1456 if (format == sector_format) {
1457 val = src->cur_pack;
1458 } else if (format == title_format) {
1460 } else if (format == chapter_format) {
1462 } else if (format == angle_format) {
1465 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1466 format, gst_format_get_name (format));
1473 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1474 gst_format_get_name (format));
1476 gst_query_set_position (query, format, val);
1481 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1483 GstFormat src_format, dest_format;
1484 gboolean ret = FALSE;
1485 gint64 src_val, dest_val = -1;
1487 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1489 if (src_format == dest_format) {
1495 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1496 * Note: title and chapter are counted as starting from 0 here, just like
1497 * in the context of seek events. Another note: DEFAULT format is undefined */
1499 if (src_format == GST_FORMAT_BYTES) {
1500 src_format = sector_format;
1501 src_val /= DVD_VIDEO_LB_LEN;
1504 if (src_format == sector_format) {
1506 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1507 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1508 ret = (dest_val >= 0);
1509 } else if (dest_format == GST_FORMAT_BYTES) {
1510 dest_val = src_val * DVD_VIDEO_LB_LEN;
1515 } else if (src_format == title_format) {
1517 if (dest_format == GST_FORMAT_TIME) {
1518 /* not really true, but we use this to trick the base source into
1519 * handling seeks in title-format for us (the source won't know that
1520 * we changed the title in this case) (changing titles should really
1521 * be done with an interface rather than a seek, but for now we're
1522 * stuck with this mechanism. Fix in 0.11) */
1523 dest_val = (GstClockTime) 0;
1528 } else if (src_format == chapter_format) {
1529 /* CHAPTER => xyz */
1530 if (dest_format == GST_FORMAT_TIME) {
1531 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1532 dest_val = src->chapter_starts[src_val];
1535 } else if (dest_format == sector_format) {
1539 } else if (src_format == GST_FORMAT_TIME) {
1541 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1542 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1543 ret = (dest_val >= 0);
1544 if (dest_format == GST_FORMAT_BYTES)
1545 dest_val *= DVD_VIDEO_LB_LEN;
1546 } else if (dest_format == chapter_format) {
1547 if (src->chapter_starts != NULL) {
1550 for (i = src->num_chapters - 1; i >= 0; --i) {
1551 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1570 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1577 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1579 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1580 gboolean res = TRUE;
1582 GST_LOG_OBJECT (src, "handling %s query", GST_QUERY_TYPE_NAME (query));
1584 switch (GST_QUERY_TYPE (query)) {
1585 case GST_QUERY_DURATION:
1586 GST_OBJECT_LOCK (src);
1587 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1588 res = gst_dvd_read_src_do_duration_query (src, query);
1590 GST_DEBUG_OBJECT (src, "query failed: not started");
1593 GST_OBJECT_UNLOCK (src);
1595 case GST_QUERY_POSITION:
1596 GST_OBJECT_LOCK (src);
1597 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1598 res = gst_dvd_read_src_do_position_query (src, query);
1600 GST_DEBUG_OBJECT (src, "query failed: not started");
1603 GST_OBJECT_UNLOCK (src);
1605 case GST_QUERY_CONVERT:
1606 GST_OBJECT_LOCK (src);
1607 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1608 res = gst_dvd_read_src_do_convert_query (src, query);
1610 GST_DEBUG_OBJECT (src, "query failed: not started");
1613 GST_OBJECT_UNLOCK (src);
1616 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1624 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1626 gint seek_to = src->cur_pack;
1627 gint chapter, next, cur, i;
1629 /* retrieve position */
1631 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1632 seek_to, angle, src->num_chapters);
1634 for (i = 0; i < src->num_chapters; i++) {
1637 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1638 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1640 for (next = cur = c1; cur < c2;) {
1641 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1642 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1643 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1645 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1647 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1648 /* seeking to 0 should end up at first chapter in any case */
1649 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1650 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1657 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1663 /* so chapter $chapter and cell $cur contain our sector
1664 * of interest. Let's go there! */
1665 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1668 gst_dvd_read_src_goto_chapter (src, chapter);
1669 src->cur_cell = cur;
1670 src->next_cell = next;
1671 src->new_cell = FALSE;
1672 src->cur_pack = seek_to;
1679 /*** URI interface ***/
1682 gst_dvd_read_src_uri_get_type (GType type)
1687 static const gchar *const *
1688 gst_dvd_read_src_uri_get_protocols (GType type)
1690 static const gchar *protocols[] = { "dvd", NULL };
1696 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1698 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1701 GST_OBJECT_LOCK (src);
1702 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1704 GST_OBJECT_UNLOCK (src);
1710 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1713 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1715 /* parse out the new t/c/a and seek to them */
1717 gchar *location = NULL;
1722 location = gst_uri_get_location (uri);
1724 GST_OBJECT_LOCK (src);
1727 src->uri_chapter = 1;
1731 goto empty_location;
1733 strcur = strs = g_strsplit (location, ",", 0);
1734 while (strcur && *strcur) {
1737 if (!sscanf (*strcur, "%d", &val))
1741 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1748 src->uri_title = val;
1751 src->uri_chapter = val;
1754 src->uri_angle = val;
1762 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1763 src->title = src->uri_title - 1;
1764 src->chapter = src->uri_chapter - 1;
1765 src->angle = src->uri_angle - 1;
1766 src->new_seek = TRUE;
1774 GST_OBJECT_UNLOCK (src);
1781 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1783 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1785 iface->get_type = gst_dvd_read_src_uri_get_type;
1786 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1787 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1788 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1792 plugin_init (GstPlugin * plugin)
1794 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1795 "DVD reader element based on dvdreadsrc");
1798 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1800 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1801 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1802 #endif /* ENABLE_NLS */
1804 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_NONE,
1805 GST_TYPE_DVD_READ_SRC)) {
1812 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1815 "Access a DVD with dvdread",
1816 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);