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.
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->first_seek = TRUE;
119 src->new_seek = TRUE;
120 src->new_cell = TRUE;
121 src->change_cell = FALSE;
123 src->uri_chapter = 1;
126 src->title_lang_event_pending = NULL;
127 src->pending_clut_event = NULL;
129 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
130 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
131 gst_static_pad_template_get_caps (&srctemplate));
135 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
141 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
143 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
144 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
145 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
146 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
148 gobject_class->finalize = gst_dvd_read_src_finalize;
149 gobject_class->set_property = gst_dvd_read_src_set_property;
150 gobject_class->get_property = gst_dvd_read_src_get_property;
152 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
153 g_param_spec_string ("device", "Device",
154 "DVD device location", NULL,
155 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
156 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
157 g_param_spec_int ("title", "title", "title",
158 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
159 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
160 g_param_spec_int ("chapter", "chapter", "chapter",
161 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
162 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
163 g_param_spec_int ("angle", "angle", "angle",
164 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
166 gst_element_class_add_static_pad_template (gstelement_class, &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;
222 src->first_seek = TRUE;
229 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
230 (_("Could not open DVD")),
231 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
236 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
237 (_("Could not open DVD")),
238 ("ifoOpen() failed: %s", g_strerror (errno)));
243 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
244 (_("Could not open DVD title %d"), src->uri_title), (NULL));
249 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
250 (_("Failed to go to chapter %d of DVD title %d"),
251 src->uri_chapter, src->uri_title), (NULL));
257 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
259 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
262 ifoClose (src->vts_file);
263 src->vts_file = NULL;
266 ifoClose (src->vmg_file);
267 src->vmg_file = NULL;
269 if (src->dvd_title) {
270 DVDCloseFile (src->dvd_title);
271 src->dvd_title = NULL;
277 src->new_cell = TRUE;
278 src->new_seek = TRUE;
279 src->change_cell = FALSE;
282 src->need_newsegment = TRUE;
283 src->vts_tmapt = NULL;
284 if (src->title_lang_event_pending) {
285 gst_event_unref (src->title_lang_event_pending);
286 src->title_lang_event_pending = NULL;
288 if (src->pending_clut_event) {
289 gst_event_unref (src->pending_clut_event);
290 src->pending_clut_event = NULL;
292 if (src->chapter_starts) {
293 g_free (src->chapter_starts);
294 src->chapter_starts = NULL;
297 GST_LOG_OBJECT (src, "closed DVD");
303 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
304 gint * p_pgc_id, pgc_t ** p_pgc)
309 g_assert (chapter >= 0 && chapter < src->num_chapters);
311 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
312 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
313 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
321 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
322 gint * p_first_cell, gint * p_last_cell)
325 gint pgn, pgc_id, pgn_next_ch;
327 g_assert (chapter >= 0 && chapter < src->num_chapters);
329 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
331 *p_first_cell = pgc->program_map[pgn - 1] - 1;
333 /* last cell is used as a 'up to boundary', not 'up to and including',
334 * i.e. it is the first cell not included in the chapter range */
335 if (chapter == (src->num_chapters - 1)) {
336 *p_last_cell = pgc->nr_of_cells;
338 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
339 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
342 GST_DEBUG_OBJECT (src, "Chapter %d bounds: %d %d (within %d cells)",
343 chapter, *p_first_cell, *p_last_cell, pgc->nr_of_cells);
347 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
351 /* make sure the chapter number is valid for this title */
352 if (chapter < 0 || chapter >= src->num_chapters) {
353 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
354 chapter, src->num_chapters);
355 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
358 /* determine which program chain we want to watch. This is
359 * based on the chapter number */
360 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
362 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
365 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
366 src->start_cell, src->last_cell);
368 /* retrieve position */
370 for (i = 0; i < chapter; i++) {
373 cur_title_get_chapter_bounds (src, i, &c1, &c2);
377 src->cur_pgc->cell_playback[c1].last_sector -
378 src->cur_pgc->cell_playback[c1].first_sector;
383 /* prepare reading for new cell */
384 src->new_cell = TRUE;
385 src->next_cell = src->start_cell;
387 src->chapter = chapter;
389 if (src->pending_clut_event)
390 gst_event_unref (src->pending_clut_event);
392 src->pending_clut_event =
393 gst_dvd_read_src_make_clut_change_event (src, src->cur_pgc->palette);
399 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
401 GstClockTime uptohere;
404 g_free (src->chapter_starts);
405 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
407 uptohere = (GstClockTime) 0;
408 for (c = 0; c < src->num_chapters; ++c) {
409 GstClockTime chapter_duration = 0;
410 gint cell_start, cell_end, cell;
414 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
415 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
418 while (cell < cell_end) {
419 dvd_time_t *cell_duration;
421 cell_duration = &pgc->cell_playback[cell].playback_time;
422 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
423 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
426 src->chapter_starts[c] = uptohere;
428 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
429 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
430 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
431 cell_start, cell_end);
433 uptohere += chapter_duration;
438 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
441 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
448 /* make sure our title number is valid */
449 num_titles = src->tt_srpt->nr_of_srpts;
450 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
451 if (title < 0 || title >= num_titles)
454 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
455 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
458 /* make sure the angle number is valid for this title */
459 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
460 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
461 if (angle < 0 || angle >= src->num_angles) {
462 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
463 angle, src->num_angles);
464 angle = CLAMP (angle, 0, src->num_angles - 1);
467 /* load the VTS information for the title set our title is in */
468 title_set_nr = src->tt_srpt->title[title].title_set_nr;
469 src->vts_file = ifoOpen (src->dvd, title_set_nr);
470 if (src->vts_file == NULL)
471 goto ifo_open_failed;
473 src->ttn = src->tt_srpt->title[title].vts_ttn;
474 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
476 /* interactive title? */
477 if (src->num_chapters > 0 &&
478 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
479 goto commands_only_pgc;
482 /* we've got enough info, time to open the title set data */
483 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
484 if (src->dvd_title == NULL)
485 goto title_open_failed;
487 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
493 if (src->title_lang_event_pending) {
494 gst_event_unref (src->title_lang_event_pending);
495 src->title_lang_event_pending = NULL;
498 s = gst_structure_new ("application/x-gst-dvd",
499 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
501 /* so we can filter out invalid/unused streams (same for all chapters) */
502 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
505 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
506 const audio_attr_t *a;
508 /* audio stream present? */
509 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
512 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
514 t = g_strdup_printf ("audio-%d-format", i);
515 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
517 t = g_strdup_printf ("audio-%d-stream", i);
518 gst_structure_set (s, t, G_TYPE_INT, (int) i, NULL);
522 t = g_strdup_printf ("audio-%d-language", i);
523 lang_code[0] = (a->lang_code >> 8) & 0xff;
524 lang_code[1] = a->lang_code & 0xff;
525 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
531 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
532 src->title + 1, i, lang_code, (gint) a->audio_format);
536 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
537 const subp_attr_t *u;
538 const video_attr_t *v;
541 /* subpicture stream present? */
542 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
545 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
546 v = &src->vts_file->vtsi_mat->vts_video_attr;
550 if (v->display_aspect_ratio == 0) /* 4:3 */
551 sid = (pgc0->subp_control[i] >> 24) & 0x1f;
552 else if (v->display_aspect_ratio == 3) /* 16:9 */
553 sid = (pgc0->subp_control[i] >> 8) & 0x1f;
557 t = g_strdup_printf ("subpicture-%d-language", i);
558 lang_code[0] = (u->lang_code >> 8) & 0xff;
559 lang_code[1] = u->lang_code & 0xff;
560 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
561 t = g_strdup_printf ("subpicture-%d-stream", i);
562 gst_structure_set (s, t, G_TYPE_INT, (int) sid, NULL);
564 t = g_strdup_printf ("subpicture-%d-format", i);
565 gst_structure_set (s, t, G_TYPE_INT, (int) 0, NULL);
571 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
572 src->title + 1, sid, lang_code, u->type);
575 src->title_lang_event_pending =
576 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
578 /* dump seek tables */
579 src->vts_tmapt = src->vts_file->vts_tmapt;
580 if (src->vts_tmapt) {
583 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
584 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
585 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
586 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
587 src->vts_tmapt->tmap_offset[i]);
588 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
589 src->vts_tmapt->tmap[i].tmu);
590 GST_LOG_OBJECT (src, "Number of entries : %d",
591 src->vts_tmapt->tmap[i].nr_of_entries);
592 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
595 time = (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
596 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
597 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
598 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
599 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
603 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
606 gst_dvd_read_src_get_chapter_starts (src);
613 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
619 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
620 (_("Could not open DVD title %d"), title_set_nr),
621 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
626 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
627 (_("Could not open DVD title %d"), title_set_nr),
628 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
633 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
634 (_("Could not open DVD title %d. Interactive titles are not supported "
635 "by this element"), title_set_nr),
636 ("Commands-only PGC, not supported, use rsndvdbin"));
641 /* FIXME: double-check this function, compare against original */
643 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
645 /* Check if we're entering an angle block. */
646 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
649 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
655 /* Returns true if the pack is a NAV pack */
657 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
659 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
662 /* Check that this is substream 0 (PCI) */
666 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
669 /* Check that this is substream 1 (DSI) */
670 if (data[0x406] != 1)
673 /* Check sizes of PCI and DSI packets */
674 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
677 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
680 /* Read the DSI packet into the provided struct and check it */
681 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
682 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
688 /* find time for sector from index, returns NONE if there is no exact match */
690 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
694 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
695 return GST_CLOCK_TIME_NONE;
697 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
698 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
699 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
700 return (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
705 return (GstClockTime) 0;
707 return GST_CLOCK_TIME_NONE;
710 /* returns the sector in the index at (or before) the given time, or -1 */
712 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
716 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
719 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[0] & 0x7fffffff;
721 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
722 GstClockTime entry_time;
725 (guint64) src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
726 if (entry_time <= ts) {
727 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
729 if (entry_time >= ts) {
743 GST_DVD_READ_ERROR = -1,
744 GST_DVD_READ_EOS = -2,
745 GST_DVD_READ_AGAIN = -3
748 static GstDvdReadReturn
749 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
754 guint8 oneblock[DVD_VIDEO_LB_LEN];
756 guint next_vobu, cur_output_size;
762 seg = &(GST_BASE_SRC (src)->segment);
764 /* playback by cell in this pgc, starting at the cell for our chapter */
766 src->cur_cell = src->start_cell;
770 if (src->cur_cell >= src->last_cell) {
771 /* advance to next chapter */
772 if (src->chapter == (src->num_chapters - 1) ||
773 (seg->format == chapter_format && seg->stop != -1 &&
774 src->chapter == (seg->stop - 1))) {
775 GST_DEBUG_OBJECT (src, "end of chapter segment");
779 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
783 gst_dvd_read_src_goto_chapter (src, src->chapter);
785 return GST_DVD_READ_AGAIN;
788 if (src->new_cell || new_seek) {
790 src->cur_cell = src->next_cell;
791 if (src->cur_cell >= src->last_cell) {
792 GST_LOG_OBJECT (src, "last cell in chapter");
797 /* take angle into account */
798 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
799 == BLOCK_TYPE_ANGLE_BLOCK)
800 src->cur_cell += angle;
802 /* calculate next cell */
804 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
806 /* we loop until we're out of this cell */
807 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
808 src->new_cell = FALSE;
809 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
813 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
814 src->new_cell = TRUE;
815 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
817 return GST_DVD_READ_AGAIN;
820 /* read NAV packet */
825 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
829 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
830 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
833 if (retries < 2000) {
836 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
842 /* determine where we go next. These values are the ones we
843 * mostly care about */
844 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
846 /* If we're not at the end of this cell, we can determine the next
847 * VOBU to display using the VOBU_SRI information section of the
848 * DSI. Using this value correctly follows the current angle,
849 * avoiding the doubled scenes in The Matrix, and makes our life
852 * Otherwise, we set our next address past the end of this cell to
853 * force the code above to go to the next cell in the program. */
854 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
855 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
857 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
860 g_assert (cur_output_size < 1024);
862 /* create the buffer (TODO: use buffer pool?) */
864 gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, NULL);
866 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
869 gst_buffer_map (buf, &map, GST_MAP_WRITE);
870 /* read in and output cursize packs */
872 DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, map.data);
874 if (len != cur_output_size)
875 goto block_read_error;
877 gst_buffer_unmap (buf, &map);
878 gst_buffer_resize (buf, 0, cur_output_size * DVD_VIDEO_LB_LEN);
879 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
880 GST_BUFFER_TIMESTAMP (buf) =
881 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
885 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
887 src->cur_pack = next_vobu;
889 next_time = GST_BUFFER_TIMESTAMP (buf);
890 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
891 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
892 next_time > seg->stop + 5 * GST_SECOND) {
893 GST_DEBUG_OBJECT (src, "end of TIME segment");
897 return GST_DVD_READ_OK;
902 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
903 return GST_DVD_READ_EOS;
907 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
908 return GST_DVD_READ_ERROR;
912 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
913 cur_output_size, src->cur_pack);
914 gst_buffer_unmap (buf, &map);
915 gst_buffer_unref (buf);
916 return GST_DVD_READ_ERROR;
920 /* we don't cache the result on purpose */
922 gst_dvd_read_descrambler_available (void)
928 module = g_module_open ("libdvdcss", 0);
929 if (module != NULL) {
930 res = g_module_symbol (module, "dvdcss_open", &sym);
931 g_module_close (module);
940 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
942 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
946 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
948 srcpad = GST_BASE_SRC (src)->srcpad;
950 if (src->need_newsegment) {
953 gst_segment_init (&seg, GST_FORMAT_BYTES);
954 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
957 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
958 src->need_newsegment = FALSE;
962 gst_dvd_read_src_goto_title (src, src->title, src->angle);
963 gst_dvd_read_src_goto_chapter (src, src->chapter);
965 src->new_seek = FALSE;
966 src->change_cell = TRUE;
969 if (src->title_lang_event_pending) {
970 gst_pad_push_event (srcpad, src->title_lang_event_pending);
971 src->title_lang_event_pending = NULL;
974 if (src->pending_clut_event) {
975 gst_pad_push_event (srcpad, src->pending_clut_event);
976 src->pending_clut_event = NULL;
981 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
982 } while (res == GST_DVD_READ_AGAIN);
985 case GST_DVD_READ_ERROR:{
986 /* FIXME: figure out a way to detect if scrambling is the problem */
987 if (!gst_dvd_read_descrambler_available ()) {
988 GST_ELEMENT_ERROR (src, RESOURCE, READ,
989 (_("Could not read DVD. This may be because the DVD is encrypted "
990 "and a DVD decryption library is not installed.")), (NULL));
992 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
995 return GST_FLOW_ERROR;
997 case GST_DVD_READ_EOS:{
1000 case GST_DVD_READ_OK:{
1001 src->change_cell = FALSE;
1008 g_return_val_if_reached (GST_FLOW_EOS);
1012 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
1013 const GValue * value, GParamSpec * pspec)
1015 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1018 GST_OBJECT_LOCK (src);
1019 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1024 g_warning ("%s: property '%s' needs to be set before the device is "
1025 "opened", GST_ELEMENT_NAME (src), pspec->name);
1029 g_free (src->location);
1030 /* clear the filename if we get a NULL (is that possible?) */
1031 if (g_value_get_string (value) == NULL) {
1032 src->location = g_strdup ("/dev/dvd");
1034 src->location = g_strdup (g_value_get_string (value));
1039 src->uri_title = g_value_get_int (value);
1041 src->title = src->uri_title - 1;
1042 src->new_seek = TRUE;
1046 src->uri_chapter = g_value_get_int (value);
1048 src->chapter = src->uri_chapter - 1;
1049 src->new_seek = TRUE;
1053 src->uri_angle = g_value_get_int (value);
1055 src->angle = src->uri_angle - 1;
1059 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1063 GST_OBJECT_UNLOCK (src);
1067 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1070 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1072 GST_OBJECT_LOCK (src);
1076 g_value_set_string (value, src->location);
1079 g_value_set_int (value, src->uri_title);
1082 g_value_set_int (value, src->uri_chapter);
1085 g_value_set_int (value, src->uri_angle);
1088 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1092 GST_OBJECT_UNLOCK (src);
1096 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1098 gboolean ret = FALSE;
1100 if (src->dvd_title) {
1103 blocks = DVDFileSize (src->dvd_title);
1105 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1109 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1116 /*** Querying and seeking ***/
1119 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1122 GstSeekType cur_type, end_type;
1123 gint64 new_off, total;
1129 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1133 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1137 if (end_type != GST_SEEK_TYPE_NONE) {
1138 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1139 end_type != GST_SEEK_TYPE_SET) {
1140 GST_DEBUG_OBJECT (src, "end seek type not supported");
1145 if (cur_type != GST_SEEK_TYPE_SET) {
1146 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1150 if (format == angle_format) {
1151 GST_OBJECT_LOCK (src);
1152 if (new_off < 0 || new_off >= src->num_angles) {
1153 GST_OBJECT_UNLOCK (src);
1154 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1155 src->num_angles, src->num_angles);
1158 src->angle = (gint) new_off;
1159 GST_OBJECT_UNLOCK (src);
1160 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1164 if (format != chapter_format && format != title_format &&
1165 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1166 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1167 gst_format_get_name (format));
1171 if (format == GST_FORMAT_BYTES) {
1172 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1174 } else if (format == GST_FORMAT_TIME) {
1175 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1176 GST_TIME_ARGS (new_off));
1177 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1178 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1183 srcpad = GST_BASE_SRC_PAD (src);
1185 /* check whether the seek looks reasonable (ie within possible range) */
1186 if (format == GST_FORMAT_BYTES) {
1187 GST_OBJECT_LOCK (src);
1188 query_ok = gst_dvd_read_src_get_size (src, &total);
1189 GST_OBJECT_UNLOCK (src);
1191 query_ok = gst_pad_query_duration (srcpad, format, &total);
1195 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1196 gst_format_get_name (format));
1200 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1201 gst_format_get_name (format), total);
1202 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1203 gst_format_get_name (format), new_off);
1205 if (new_off >= total) {
1206 GST_DEBUG_OBJECT (src, "Seek position out of range");
1210 /* set segment to seek format; this allows us to use the do_seek
1211 * virtual function and let the base source handle all the tricky
1212 * stuff for us. We don't use the segment internally anyway */
1213 /* FIXME: can't take the stream lock here - what to do? */
1214 GST_OBJECT_LOCK (src);
1215 GST_BASE_SRC (src)->segment.format = format;
1216 GST_BASE_SRC (src)->segment.start = 0;
1217 GST_BASE_SRC (src)->segment.stop = total;
1218 GST_BASE_SRC (src)->segment.duration = total;
1219 GST_OBJECT_UNLOCK (src);
1221 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1225 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1229 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1230 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1231 *first = src->cur_pgc->cell_playback[c1].first_sector;
1232 *last = src->cur_pgc->cell_playback[c2].last_sector;
1236 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1240 src = GST_DVD_READ_SRC (basesrc);
1242 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1243 gst_format_get_name (s->format), s->position);
1245 /* Ignore the first seek to 0, as it breaks starting playback
1246 * from another chapter by seeking back to sector 0 */
1247 if (src->first_seek && s->format == GST_FORMAT_BYTES && s->start == 0) {
1248 src->first_seek = FALSE;
1252 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1253 || s->format == GST_FORMAT_TIME) {
1256 old = src->cur_pack;
1258 if (s->format == sector_format) {
1260 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1261 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1263 src->cur_pack = s->position;
1264 if (src->cur_pack < first)
1265 src->cur_pack = first;
1266 if (src->cur_pack > last)
1267 src->cur_pack = last;
1268 } else if (s->format == GST_FORMAT_TIME) {
1270 GST_DEBUG_OBJECT (src, "Format is time");
1272 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1274 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1275 GST_TIME_ARGS (s->position), sector);
1277 /* really shouldn't happen, we've checked this earlier ... */
1278 g_return_val_if_fail (sector >= 0, FALSE);
1280 src->cur_pack = sector;
1284 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1285 GST_DEBUG_OBJECT (src, "Format is byte");
1286 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1287 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1288 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1289 G_GINT64_FORMAT, s->position,
1290 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1292 src->cur_pack += first;
1295 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1296 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1297 src->cur_pack = old;
1301 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1302 } else if (s->format == chapter_format) {
1303 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1304 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1305 (gint) s->position + 1);
1308 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1309 src->chapter = s->position;
1310 } else if (s->format == title_format) {
1311 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1312 !gst_dvd_read_src_goto_chapter (src, 0)) {
1313 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1316 src->title = (gint) s->position;
1318 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1320 g_return_val_if_reached (FALSE);
1323 src->need_newsegment = TRUE;
1328 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1330 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1333 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1335 switch (GST_EVENT_TYPE (event)) {
1336 case GST_EVENT_SEEK:
1337 res = gst_dvd_read_src_handle_seek_event (src, event);
1340 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1348 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1351 GstStructure *structure;
1355 structure = gst_structure_new ("application/x-gst-dvd",
1356 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1358 /* Create a separate field for each value in the table. */
1359 for (i = 0; i < 16; i++) {
1360 g_snprintf (name, sizeof (name), "clut%02d", i);
1361 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1364 /* Create the DVD event and put the structure into it. */
1365 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, structure);
1369 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1372 const gint64 one_hour = 3600 * GST_SECOND;
1373 const gint64 one_min = 60 * GST_SECOND;
1375 g_return_val_if_fail ((time->hour >> 4) < 0xa
1376 && (time->hour & 0xf) < 0xa, -1);
1377 g_return_val_if_fail ((time->minute >> 4) < 0x7
1378 && (time->minute & 0xf) < 0xa, -1);
1379 g_return_val_if_fail ((time->second >> 4) < 0x7
1380 && (time->second & 0xf) < 0xa, -1);
1382 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1383 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1384 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1390 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1395 gst_query_parse_duration (query, &format, NULL);
1398 case GST_FORMAT_TIME:{
1399 if (src->cur_pgc == NULL)
1401 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1406 case GST_FORMAT_BYTES:{
1407 if (!gst_dvd_read_src_get_size (src, &val))
1412 if (format == sector_format) {
1413 val = DVDFileSize (src->dvd_title);
1414 } else if (format == title_format) {
1415 val = src->tt_srpt->nr_of_srpts;
1416 } else if (format == chapter_format) {
1417 val = src->num_chapters;
1418 } else if (format == angle_format) {
1419 val = src->tt_srpt->title[src->title].nr_of_angles;
1421 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1422 format, gst_format_get_name (format));
1429 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1430 gst_format_get_name (format));
1432 gst_query_set_duration (query, format, val);
1437 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1442 gst_query_parse_position (query, &format, NULL);
1445 case GST_FORMAT_BYTES:{
1446 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1450 if (format == sector_format) {
1451 val = src->cur_pack;
1452 } else if (format == title_format) {
1454 } else if (format == chapter_format) {
1456 } else if (format == angle_format) {
1459 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1460 format, gst_format_get_name (format));
1467 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1468 gst_format_get_name (format));
1470 gst_query_set_position (query, format, val);
1475 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1477 GstFormat src_format, dest_format;
1478 gboolean ret = FALSE;
1479 gint64 src_val, dest_val = -1;
1481 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1483 if (src_format == dest_format) {
1489 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1490 * Note: title and chapter are counted as starting from 0 here, just like
1491 * in the context of seek events. Another note: DEFAULT format is undefined */
1493 if (src_format == GST_FORMAT_BYTES) {
1494 src_format = sector_format;
1495 src_val /= DVD_VIDEO_LB_LEN;
1498 if (src_format == sector_format) {
1500 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1501 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1502 ret = (dest_val >= 0);
1503 } else if (dest_format == GST_FORMAT_BYTES) {
1504 dest_val = src_val * DVD_VIDEO_LB_LEN;
1509 } else if (src_format == title_format) {
1511 if (dest_format == GST_FORMAT_TIME) {
1512 /* not really true, but we use this to trick the base source into
1513 * handling seeks in title-format for us (the source won't know that
1514 * we changed the title in this case) (changing titles should really
1515 * be done with an interface rather than a seek, but for now we're
1516 * stuck with this mechanism. Fix in 0.11) */
1517 dest_val = (GstClockTime) 0;
1522 } else if (src_format == chapter_format) {
1523 /* CHAPTER => xyz */
1524 if (dest_format == GST_FORMAT_TIME) {
1525 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1526 dest_val = src->chapter_starts[src_val];
1529 } else if (dest_format == sector_format) {
1533 } else if (src_format == GST_FORMAT_TIME) {
1535 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1536 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1537 ret = (dest_val >= 0);
1538 if (dest_format == GST_FORMAT_BYTES)
1539 dest_val *= DVD_VIDEO_LB_LEN;
1540 } else if (dest_format == chapter_format) {
1541 if (src->chapter_starts != NULL) {
1544 for (i = src->num_chapters - 1; i >= 0; --i) {
1545 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1564 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1571 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1573 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1574 gboolean res = TRUE;
1576 GST_LOG_OBJECT (src, "handling %s query", GST_QUERY_TYPE_NAME (query));
1578 switch (GST_QUERY_TYPE (query)) {
1579 case GST_QUERY_DURATION:
1580 GST_OBJECT_LOCK (src);
1581 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1582 res = gst_dvd_read_src_do_duration_query (src, query);
1584 GST_DEBUG_OBJECT (src, "query failed: not started");
1587 GST_OBJECT_UNLOCK (src);
1589 case GST_QUERY_POSITION:
1590 GST_OBJECT_LOCK (src);
1591 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1592 res = gst_dvd_read_src_do_position_query (src, query);
1594 GST_DEBUG_OBJECT (src, "query failed: not started");
1597 GST_OBJECT_UNLOCK (src);
1599 case GST_QUERY_CONVERT:
1600 GST_OBJECT_LOCK (src);
1601 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1602 res = gst_dvd_read_src_do_convert_query (src, query);
1604 GST_DEBUG_OBJECT (src, "query failed: not started");
1607 GST_OBJECT_UNLOCK (src);
1610 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1618 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1620 gint seek_to = src->cur_pack;
1621 gint chapter, next, cur, i;
1623 /* retrieve position */
1625 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1626 seek_to, angle, src->num_chapters);
1628 for (i = 0; i < src->num_chapters; i++) {
1631 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1632 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1634 for (next = cur = c1; cur < c2;) {
1635 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1636 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1637 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1639 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1641 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1642 /* seeking to 0 should end up at first chapter in any case */
1643 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1644 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1651 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1657 /* so chapter $chapter and cell $cur contain our sector
1658 * of interest. Let's go there! */
1659 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1662 gst_dvd_read_src_goto_chapter (src, chapter);
1663 src->cur_cell = cur;
1664 src->next_cell = next;
1665 src->new_cell = FALSE;
1666 src->cur_pack = seek_to;
1673 /*** URI interface ***/
1676 gst_dvd_read_src_uri_get_type (GType type)
1681 static const gchar *const *
1682 gst_dvd_read_src_uri_get_protocols (GType type)
1684 static const gchar *protocols[] = { "dvd", NULL };
1690 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1692 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1695 GST_OBJECT_LOCK (src);
1696 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1698 GST_OBJECT_UNLOCK (src);
1704 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1707 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1709 /* parse out the new t/c/a and seek to them */
1711 gchar *location = NULL;
1716 location = gst_uri_get_location (uri);
1718 GST_OBJECT_LOCK (src);
1721 src->uri_chapter = 1;
1725 goto empty_location;
1727 strcur = strs = g_strsplit (location, ",", 0);
1728 while (strcur && *strcur) {
1731 if (!sscanf (*strcur, "%d", &val))
1735 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1742 src->uri_title = val;
1745 src->uri_chapter = val;
1748 src->uri_angle = val;
1756 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1757 src->title = src->uri_title - 1;
1758 src->chapter = src->uri_chapter - 1;
1759 src->angle = src->uri_angle - 1;
1760 src->new_seek = TRUE;
1768 GST_OBJECT_UNLOCK (src);
1775 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1777 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1779 iface->get_type = gst_dvd_read_src_uri_get_type;
1780 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1781 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1782 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1786 plugin_init (GstPlugin * plugin)
1788 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1789 "DVD reader element based on dvdreadsrc");
1792 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1794 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1795 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1796 #endif /* ENABLE_NLS */
1798 if (!gst_element_register (plugin, "dvdreadsrc", GST_RANK_NONE,
1799 GST_TYPE_DVD_READ_SRC)) {
1806 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1809 "Access a DVD with dvdread",
1810 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);