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,
94 static gboolean dvdread_element_init (GstPlugin * plugin);
96 #define gst_dvd_read_src_parent_class parent_class
97 G_DEFINE_TYPE_WITH_CODE (GstDvdReadSrc, gst_dvd_read_src, GST_TYPE_PUSH_SRC,
98 G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
99 gst_dvd_read_src_uri_handler_init));
100 GST_ELEMENT_REGISTER_DEFINE_CUSTOM (dvdreadsrc, dvdread_element_init);
103 gst_dvd_read_src_finalize (GObject * object)
105 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
107 g_free (src->location);
109 G_OBJECT_CLASS (parent_class)->finalize (object);
113 gst_dvd_read_src_init (GstDvdReadSrc * src)
116 src->vts_file = NULL;
117 src->vmg_file = NULL;
118 src->dvd_title = NULL;
120 src->location = g_strdup ("/dev/dvd");
121 src->first_seek = TRUE;
122 src->new_seek = TRUE;
123 src->new_cell = TRUE;
124 src->change_cell = FALSE;
126 src->uri_chapter = 1;
129 src->title_lang_event_pending = NULL;
130 src->pending_clut_event = NULL;
132 gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (src));
133 gst_pad_set_caps (GST_BASE_SRC_PAD (src),
134 gst_static_pad_template_get_caps (&srctemplate));
138 gst_dvd_read_src_is_seekable (GstBaseSrc * src)
144 gst_dvd_read_src_class_init (GstDvdReadSrcClass * klass)
146 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
147 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
148 GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
149 GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
151 gobject_class->finalize = gst_dvd_read_src_finalize;
152 gobject_class->set_property = gst_dvd_read_src_set_property;
153 gobject_class->get_property = gst_dvd_read_src_get_property;
155 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
156 g_param_spec_string ("device", "Device",
157 "DVD device location", NULL,
158 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
159 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TITLE,
160 g_param_spec_int ("title", "title", "title",
161 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
162 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHAPTER,
163 g_param_spec_int ("chapter", "chapter", "chapter",
164 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
165 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ANGLE,
166 g_param_spec_int ("angle", "angle", "angle",
167 1, 999, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
169 gst_element_class_add_static_pad_template (gstelement_class, &srctemplate);
171 gst_element_class_set_static_metadata (gstelement_class, "DVD Source",
173 "Access a DVD title/chapter/angle using libdvdread",
174 "Erik Walthinsen <omega@cse.ogi.edu>");
176 gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvd_read_src_start);
177 gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvd_read_src_stop);
178 gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_query);
179 gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_dvd_read_src_src_event);
180 gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_dvd_read_src_do_seek);
181 gstbasesrc_class->is_seekable =
182 GST_DEBUG_FUNCPTR (gst_dvd_read_src_is_seekable);
184 gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvd_read_src_create);
186 title_format = gst_format_register ("title", "DVD title");
187 angle_format = gst_format_register ("angle", "DVD angle");
188 sector_format = gst_format_register ("sector", "DVD sector");
189 chapter_format = gst_format_register ("chapter", "DVD chapter");
193 gst_dvd_read_src_start (GstBaseSrc * basesrc)
195 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
197 g_return_val_if_fail (src->location != NULL, FALSE);
199 GST_DEBUG_OBJECT (src, "Opening DVD '%s'", src->location);
201 if ((src->dvd = DVDOpen (src->location)) == NULL)
204 /* Load the video manager to find out the information about the titles */
205 GST_DEBUG_OBJECT (src, "Loading VMG info");
207 if (!(src->vmg_file = ifoOpen (src->dvd, 0)))
208 goto ifo_open_failed;
210 src->tt_srpt = src->vmg_file->tt_srpt;
212 src->title = src->uri_title - 1;
213 src->chapter = src->uri_chapter - 1;
214 src->angle = src->uri_angle - 1;
216 if (!gst_dvd_read_src_goto_title (src, src->title, src->angle))
217 goto title_open_failed;
219 if (!gst_dvd_read_src_goto_chapter (src, src->chapter))
220 goto chapter_open_failed;
222 src->new_seek = FALSE;
223 src->change_cell = TRUE;
225 src->first_seek = TRUE;
232 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
233 (_("Could not open DVD")),
234 ("DVDOpen(%s) failed: %s", src->location, g_strerror (errno)));
239 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
240 (_("Could not open DVD")),
241 ("ifoOpen() failed: %s", g_strerror (errno)));
246 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
247 (_("Could not open DVD title %d"), src->uri_title), (NULL));
252 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
253 (_("Failed to go to chapter %d of DVD title %d"),
254 src->uri_chapter, src->uri_title), (NULL));
260 gst_dvd_read_src_stop (GstBaseSrc * basesrc)
262 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
265 ifoClose (src->vts_file);
266 src->vts_file = NULL;
269 ifoClose (src->vmg_file);
270 src->vmg_file = NULL;
272 if (src->dvd_title) {
273 DVDCloseFile (src->dvd_title);
274 src->dvd_title = NULL;
280 src->new_cell = TRUE;
281 src->new_seek = TRUE;
282 src->change_cell = FALSE;
285 src->need_newsegment = TRUE;
286 src->vts_tmapt = NULL;
287 if (src->title_lang_event_pending) {
288 gst_event_unref (src->title_lang_event_pending);
289 src->title_lang_event_pending = NULL;
291 if (src->pending_clut_event) {
292 gst_event_unref (src->pending_clut_event);
293 src->pending_clut_event = NULL;
295 if (src->chapter_starts) {
296 g_free (src->chapter_starts);
297 src->chapter_starts = NULL;
300 GST_LOG_OBJECT (src, "closed DVD");
306 cur_title_get_chapter_pgc (GstDvdReadSrc * src, gint chapter, gint * p_pgn,
307 gint * p_pgc_id, pgc_t ** p_pgc)
312 g_assert (chapter >= 0 && chapter < src->num_chapters);
314 pgc_id = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgcn;
315 pgn = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter].pgn;
316 pgc = src->vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
324 cur_title_get_chapter_bounds (GstDvdReadSrc * src, gint chapter,
325 gint * p_first_cell, gint * p_last_cell)
328 gint pgn, pgc_id, pgn_next_ch;
330 g_assert (chapter >= 0 && chapter < src->num_chapters);
332 cur_title_get_chapter_pgc (src, chapter, &pgn, &pgc_id, &pgc);
334 *p_first_cell = pgc->program_map[pgn - 1] - 1;
336 /* last cell is used as a 'up to boundary', not 'up to and including',
337 * i.e. it is the first cell not included in the chapter range */
338 if (chapter == (src->num_chapters - 1)) {
339 *p_last_cell = pgc->nr_of_cells;
341 pgn_next_ch = src->vts_ptt_srpt->title[src->ttn - 1].ptt[chapter + 1].pgn;
342 *p_last_cell = pgc->program_map[pgn_next_ch - 1] - 1;
345 GST_DEBUG_OBJECT (src, "Chapter %d bounds: %d %d (within %d cells)",
346 chapter, *p_first_cell, *p_last_cell, pgc->nr_of_cells);
350 gst_dvd_read_src_goto_chapter (GstDvdReadSrc * src, gint chapter)
353 const guint8 *palette;
355 /* make sure the chapter number is valid for this title */
356 if (chapter < 0 || chapter >= src->num_chapters) {
357 GST_WARNING_OBJECT (src, "invalid chapter %d (only %d available)",
358 chapter, src->num_chapters);
359 chapter = CLAMP (chapter, 0, src->num_chapters - 1);
362 /* determine which program chain we want to watch. This is
363 * based on the chapter number */
364 cur_title_get_chapter_pgc (src, chapter, &src->pgn, &src->pgc_id,
366 cur_title_get_chapter_bounds (src, chapter, &src->start_cell,
369 GST_LOG_OBJECT (src, "Opened chapter %d - cell %d-%d", chapter + 1,
370 src->start_cell, src->last_cell);
372 /* retrieve position */
374 for (i = 0; i < chapter; i++) {
377 cur_title_get_chapter_bounds (src, i, &c1, &c2);
381 src->cur_pgc->cell_playback[c1].last_sector -
382 src->cur_pgc->cell_playback[c1].first_sector;
387 /* prepare reading for new cell */
388 src->new_cell = TRUE;
389 src->next_cell = src->start_cell;
391 src->chapter = chapter;
393 if (src->pending_clut_event)
394 gst_event_unref (src->pending_clut_event);
396 /* Work around GCC 9 compiler warning here about taking address of packed
397 * member, which may result in an unaligned pointer access */
398 palette = (const guint8 *) src->cur_pgc->palette;
399 src->pending_clut_event =
400 gst_dvd_read_src_make_clut_change_event (src, (const guint32 *) palette);
406 gst_dvd_read_src_get_chapter_starts (GstDvdReadSrc * src)
408 GstClockTime uptohere;
411 g_free (src->chapter_starts);
412 src->chapter_starts = g_new (GstClockTime, src->num_chapters);
414 uptohere = (GstClockTime) 0;
415 for (c = 0; c < src->num_chapters; ++c) {
416 GstClockTime chapter_duration = 0;
417 gint cell_start, cell_end, cell;
421 cur_title_get_chapter_pgc (src, c, &pgn, &pgc_id, &pgc);
422 cur_title_get_chapter_bounds (src, c, &cell_start, &cell_end);
425 while (cell < cell_end) {
426 dvd_time_t *cell_duration;
428 cell_duration = &pgc->cell_playback[cell].playback_time;
429 chapter_duration += gst_dvd_read_src_convert_timecode (cell_duration);
430 cell = gst_dvd_read_src_get_next_cell (src, pgc, cell);
433 src->chapter_starts[c] = uptohere;
435 GST_INFO_OBJECT (src, "[%02u] Chapter %02u starts at %" GST_TIME_FORMAT
436 ", dur = %" GST_TIME_FORMAT ", cells %d-%d", src->title + 1, c + 1,
437 GST_TIME_ARGS (uptohere), GST_TIME_ARGS (chapter_duration),
438 cell_start, cell_end);
440 uptohere += chapter_duration;
445 gst_dvd_read_src_goto_title (GstDvdReadSrc * src, gint title, gint angle)
448 gchar lang_code[3] = { '\0', '\0', '\0' }, *t;
455 /* make sure our title number is valid */
456 num_titles = src->tt_srpt->nr_of_srpts;
457 GST_INFO_OBJECT (src, "There are %d titles on this DVD", num_titles);
458 if (title < 0 || title >= num_titles)
461 src->num_chapters = src->tt_srpt->title[title].nr_of_ptts;
462 GST_INFO_OBJECT (src, "Title %d has %d chapters", title + 1,
465 /* make sure the angle number is valid for this title */
466 src->num_angles = src->tt_srpt->title[title].nr_of_angles;
467 GST_LOG_OBJECT (src, "Title %d has %d angles", title + 1, src->num_angles);
468 if (angle < 0 || angle >= src->num_angles) {
469 GST_WARNING_OBJECT (src, "Invalid angle %d (only %d available)",
470 angle, src->num_angles);
471 angle = CLAMP (angle, 0, src->num_angles - 1);
474 /* load the VTS information for the title set our title is in */
475 title_set_nr = src->tt_srpt->title[title].title_set_nr;
476 src->vts_file = ifoOpen (src->dvd, title_set_nr);
477 if (src->vts_file == NULL)
478 goto ifo_open_failed;
480 src->ttn = src->tt_srpt->title[title].vts_ttn;
481 src->vts_ptt_srpt = src->vts_file->vts_ptt_srpt;
483 /* interactive title? */
484 if (src->num_chapters > 0 &&
485 src->vts_ptt_srpt->title[src->ttn - 1].ptt[0].pgn == 0) {
486 goto commands_only_pgc;
489 /* we've got enough info, time to open the title set data */
490 src->dvd_title = DVDOpenFile (src->dvd, title_set_nr, DVD_READ_TITLE_VOBS);
491 if (src->dvd_title == NULL)
492 goto title_open_failed;
494 GST_INFO_OBJECT (src, "Opened title %d, angle %d", title + 1, angle);
500 if (src->title_lang_event_pending) {
501 gst_event_unref (src->title_lang_event_pending);
502 src->title_lang_event_pending = NULL;
505 s = gst_structure_new ("application/x-gst-dvd",
506 "event", G_TYPE_STRING, "dvd-lang-codes", NULL);
508 /* so we can filter out invalid/unused streams (same for all chapters) */
509 cur_title_get_chapter_pgc (src, 0, &pgn0, &pgc0_id, &pgc0);
512 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_audio_streams; i++) {
513 const audio_attr_t *a;
515 /* audio stream present? */
516 if (pgc0 != NULL && (pgc0->audio_control[i] & 0x8000) == 0)
519 a = &src->vts_file->vtsi_mat->vts_audio_attr[i];
521 t = g_strdup_printf ("audio-%d-format", i);
522 gst_structure_set (s, t, G_TYPE_INT, (int) a->audio_format, NULL);
524 t = g_strdup_printf ("audio-%d-stream", i);
525 gst_structure_set (s, t, G_TYPE_INT, (int) i, NULL);
529 t = g_strdup_printf ("audio-%d-language", i);
530 lang_code[0] = (a->lang_code >> 8) & 0xff;
531 lang_code[1] = a->lang_code & 0xff;
532 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
538 GST_INFO_OBJECT (src, "[%02d] Audio %02d: lang='%s', format=%d",
539 src->title + 1, i, lang_code, (gint) a->audio_format);
543 for (i = 0; i < src->vts_file->vtsi_mat->nr_of_vts_subp_streams; i++) {
544 const subp_attr_t *u;
545 const video_attr_t *v;
548 /* subpicture stream present? */
549 if (pgc0 != NULL && (pgc0->subp_control[i] & 0x80000000) == 0)
552 u = &src->vts_file->vtsi_mat->vts_subp_attr[i];
553 v = &src->vts_file->vtsi_mat->vts_video_attr;
557 if (v->display_aspect_ratio == 0) /* 4:3 */
558 sid = (pgc0->subp_control[i] >> 24) & 0x1f;
559 else if (v->display_aspect_ratio == 3) /* 16:9 */
560 sid = (pgc0->subp_control[i] >> 8) & 0x1f;
564 t = g_strdup_printf ("subpicture-%d-language", i);
565 lang_code[0] = (u->lang_code >> 8) & 0xff;
566 lang_code[1] = u->lang_code & 0xff;
567 gst_structure_set (s, t, G_TYPE_STRING, lang_code, NULL);
569 t = g_strdup_printf ("subpicture-%d-stream", i);
570 gst_structure_set (s, t, G_TYPE_INT, (int) sid, NULL);
572 t = g_strdup_printf ("subpicture-%d-format", i);
573 gst_structure_set (s, t, G_TYPE_INT, (int) 0, NULL);
579 GST_INFO_OBJECT (src, "[%02d] Subtitle %02d: lang='%s', type=%d",
580 src->title + 1, sid, lang_code, u->type);
583 src->title_lang_event_pending =
584 gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
586 /* dump seek tables */
587 src->vts_tmapt = src->vts_file->vts_tmapt;
588 if (src->vts_tmapt) {
591 GST_LOG_OBJECT (src, "nr_of_tmaps = %d", src->vts_tmapt->nr_of_tmaps);
592 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
593 GST_LOG_OBJECT (src, "======= Table %d ===================", i);
594 GST_LOG_OBJECT (src, "Offset relative to VTS_TMAPTI: %d",
595 src->vts_tmapt->tmap_offset[i]);
596 GST_LOG_OBJECT (src, "Time unit (seconds) : %d",
597 src->vts_tmapt->tmap[i].tmu);
598 GST_LOG_OBJECT (src, "Number of entries : %d",
599 src->vts_tmapt->tmap[i].nr_of_entries);
600 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; j++) {
603 time = (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
604 GST_LOG_OBJECT (src, "Time: %" GST_TIME_FORMAT " VOBU "
605 "Sector: 0x%08x %s", GST_TIME_ARGS (time),
606 src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff,
607 (src->vts_tmapt->tmap[i].map_ent[j] >> 31) ? "discontinuity" : "");
611 GST_WARNING_OBJECT (src, "no vts_tmapt - seeking will suck");
614 gst_dvd_read_src_get_chapter_starts (src);
621 GST_WARNING_OBJECT (src, "Invalid title %d (only %d available)",
627 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
628 (_("Could not open DVD title %d"), title_set_nr),
629 ("ifoOpen(%d) failed: %s", title_set_nr, g_strerror (errno)));
634 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
635 (_("Could not open DVD title %d"), title_set_nr),
636 ("Can't open title VOBS (VTS_%02d_1.VOB)", title_set_nr));
641 GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
642 (_("Could not open DVD title %d. Interactive titles are not supported "
643 "by this element"), title_set_nr),
644 ("Commands-only PGC, not supported, use rsndvdbin"));
649 /* FIXME: double-check this function, compare against original */
651 gst_dvd_read_src_get_next_cell (GstDvdReadSrc * src, pgc_t * pgc, gint cell)
653 /* Check if we're entering an angle block. */
654 if (pgc->cell_playback[cell].block_type != BLOCK_TYPE_ANGLE_BLOCK)
657 while (pgc->cell_playback[cell].block_mode != BLOCK_MODE_LAST_CELL)
663 /* Returns true if the pack is a NAV pack */
665 gst_dvd_read_src_is_nav_pack (const guint8 * data, gint lbn, dsi_t * dsi_pack)
667 if (GST_READ_UINT32_BE (data + 0x26) != 0x000001BF)
670 /* Check that this is substream 0 (PCI) */
674 if (GST_READ_UINT32_BE (data + 0x400) != 0x000001BF)
677 /* Check that this is substream 1 (DSI) */
678 if (data[0x406] != 1)
681 /* Check sizes of PCI and DSI packets */
682 if (GST_READ_UINT16_BE (data + 0x2a) != 0x03d4)
685 if (GST_READ_UINT16_BE (data + 0x404) != 0x03fa)
688 /* Read the DSI packet into the provided struct and check it */
689 navRead_DSI (dsi_pack, (unsigned char *) data + DSI_START_BYTE);
690 if (lbn != dsi_pack->dsi_gi.nv_pck_lbn)
696 /* find time for sector from index, returns NONE if there is no exact match */
698 gst_dvd_read_src_get_time_for_sector (GstDvdReadSrc * src, guint sector)
702 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps == 0)
703 return GST_CLOCK_TIME_NONE;
705 for (i = 0; i < src->vts_tmapt->nr_of_tmaps; ++i) {
706 for (j = 0; j < src->vts_tmapt->tmap[i].nr_of_entries; ++j) {
707 if ((src->vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff) == sector)
708 return (guint64) src->vts_tmapt->tmap[i].tmu * (j + 1) * GST_SECOND;
713 return (GstClockTime) 0;
715 return GST_CLOCK_TIME_NONE;
718 /* returns the sector in the index at (or before) the given time, or -1 */
720 gst_dvd_read_src_get_sector_from_time (GstDvdReadSrc * src, GstClockTime ts)
724 if (src->vts_tmapt == NULL || src->vts_tmapt->nr_of_tmaps < src->ttn)
727 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[0] & 0x7fffffff;
729 for (j = 0; j < src->vts_tmapt->tmap[src->ttn - 1].nr_of_entries; ++j) {
730 GstClockTime entry_time;
733 (guint64) src->vts_tmapt->tmap[src->ttn - 1].tmu * (j + 1) * GST_SECOND;
734 if (entry_time <= ts) {
735 sector = src->vts_tmapt->tmap[src->ttn - 1].map_ent[j] & 0x7fffffff;
737 if (entry_time >= ts) {
751 GST_DVD_READ_ERROR = -1,
752 GST_DVD_READ_EOS = -2,
753 GST_DVD_READ_AGAIN = -3
756 static GstDvdReadReturn
757 gst_dvd_read_src_read (GstDvdReadSrc * src, gint angle, gint new_seek,
762 guint8 oneblock[DVD_VIDEO_LB_LEN];
764 guint next_vobu, cur_output_size;
770 seg = &(GST_BASE_SRC (src)->segment);
772 /* playback by cell in this pgc, starting at the cell for our chapter */
774 src->cur_cell = src->start_cell;
778 if (src->cur_cell >= src->last_cell) {
779 /* advance to next chapter */
780 if (src->chapter == (src->num_chapters - 1) ||
781 (seg->format == chapter_format && seg->stop != -1 &&
782 src->chapter == (seg->stop - 1))) {
783 GST_DEBUG_OBJECT (src, "end of chapter segment");
787 GST_INFO_OBJECT (src, "end of chapter %d, switch to next",
791 gst_dvd_read_src_goto_chapter (src, src->chapter);
793 return GST_DVD_READ_AGAIN;
796 if (src->new_cell || new_seek) {
798 src->cur_cell = src->next_cell;
799 if (src->cur_cell >= src->last_cell) {
800 GST_LOG_OBJECT (src, "last cell in chapter");
805 /* take angle into account */
806 if (src->cur_pgc->cell_playback[src->cur_cell].block_type
807 == BLOCK_TYPE_ANGLE_BLOCK)
808 src->cur_cell += angle;
810 /* calculate next cell */
812 gst_dvd_read_src_get_next_cell (src, src->cur_pgc, src->cur_cell);
814 /* we loop until we're out of this cell */
815 src->cur_pack = src->cur_pgc->cell_playback[src->cur_cell].first_sector;
816 src->new_cell = FALSE;
817 GST_DEBUG_OBJECT (src, "Starting new cell %d @ pack %d", src->cur_cell,
821 if (src->cur_pack >= src->cur_pgc->cell_playback[src->cur_cell].last_sector) {
822 src->new_cell = TRUE;
823 GST_LOG_OBJECT (src, "Beyond last sector for cell %d, going to next cell",
825 return GST_DVD_READ_AGAIN;
828 /* read NAV packet */
833 len = DVDReadBlocks (src->dvd_title, src->cur_pack, 1, oneblock);
837 if (!gst_dvd_read_src_is_nav_pack (oneblock, src->cur_pack, &dsi_pack)) {
838 GST_LOG_OBJECT (src, "Skipping nav packet @ pack %d", src->cur_pack);
841 if (retries < 2000) {
844 GST_LOG_OBJECT (src, "No nav packet @ pack %d after 2000 blocks",
850 /* determine where we go next. These values are the ones we
851 * mostly care about */
852 cur_output_size = dsi_pack.dsi_gi.vobu_ea + 1;
854 /* If we're not at the end of this cell, we can determine the next
855 * VOBU to display using the VOBU_SRI information section of the
856 * DSI. Using this value correctly follows the current angle,
857 * avoiding the doubled scenes in The Matrix, and makes our life
860 * Otherwise, we set our next address past the end of this cell to
861 * force the code above to go to the next cell in the program. */
862 if (dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
863 next_vobu = src->cur_pack + (dsi_pack.vobu_sri.next_vobu & 0x7fffffff);
865 next_vobu = src->cur_pgc->cell_playback[src->cur_cell].last_sector + 1;
868 g_assert (cur_output_size < 1024);
870 /* create the buffer (TODO: use buffer pool?) */
872 gst_buffer_new_allocate (NULL, cur_output_size * DVD_VIDEO_LB_LEN, NULL);
874 GST_LOG_OBJECT (src, "Going to read %u sectors @ pack %d", cur_output_size,
877 gst_buffer_map (buf, &map, GST_MAP_WRITE);
878 /* read in and output cursize packs */
880 DVDReadBlocks (src->dvd_title, src->cur_pack, cur_output_size, map.data);
882 if (len != cur_output_size)
883 goto block_read_error;
885 gst_buffer_unmap (buf, &map);
886 gst_buffer_resize (buf, 0, cur_output_size * DVD_VIDEO_LB_LEN);
887 /* GST_BUFFER_OFFSET (buf) = priv->cur_pack * DVD_VIDEO_LB_LEN; */
888 GST_BUFFER_TIMESTAMP (buf) =
889 gst_dvd_read_src_get_time_for_sector (src, src->cur_pack);
893 GST_LOG_OBJECT (src, "Read %u sectors", cur_output_size);
895 src->cur_pack = next_vobu;
897 next_time = GST_BUFFER_TIMESTAMP (buf);
898 if (GST_CLOCK_TIME_IS_VALID (next_time) && seg->format == GST_FORMAT_TIME &&
899 GST_CLOCK_TIME_IS_VALID (seg->stop) &&
900 next_time > seg->stop + 5 * GST_SECOND) {
901 GST_DEBUG_OBJECT (src, "end of TIME segment");
905 return GST_DVD_READ_OK;
910 GST_INFO_OBJECT (src, "Reached end-of-segment/stream - EOS");
911 return GST_DVD_READ_EOS;
915 GST_ERROR_OBJECT (src, "Read failed for block %d", src->cur_pack);
916 return GST_DVD_READ_ERROR;
920 GST_ERROR_OBJECT (src, "Read failed for %d blocks at %d",
921 cur_output_size, src->cur_pack);
922 gst_buffer_unmap (buf, &map);
923 gst_buffer_unref (buf);
924 return GST_DVD_READ_ERROR;
928 /* we don't cache the result on purpose */
930 gst_dvd_read_descrambler_available (void)
936 module = g_module_open ("libdvdcss", 0);
937 if (module != NULL) {
938 res = g_module_symbol (module, "dvdcss_open", &sym);
939 g_module_close (module);
948 gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
950 GstDvdReadSrc *src = GST_DVD_READ_SRC (pushsrc);
954 g_return_val_if_fail (src->dvd != NULL, GST_FLOW_ERROR);
956 srcpad = GST_BASE_SRC (src)->srcpad;
958 if (src->need_newsegment) {
961 gst_segment_init (&seg, GST_FORMAT_BYTES);
962 seg.start = src->cur_pack * DVD_VIDEO_LB_LEN;
965 gst_pad_push_event (srcpad, gst_event_new_segment (&seg));
966 src->need_newsegment = FALSE;
970 gst_dvd_read_src_goto_title (src, src->title, src->angle);
971 gst_dvd_read_src_goto_chapter (src, src->chapter);
973 src->new_seek = FALSE;
974 src->change_cell = TRUE;
977 if (src->title_lang_event_pending) {
978 gst_pad_push_event (srcpad, src->title_lang_event_pending);
979 src->title_lang_event_pending = NULL;
982 if (src->pending_clut_event) {
983 gst_pad_push_event (srcpad, src->pending_clut_event);
984 src->pending_clut_event = NULL;
989 res = gst_dvd_read_src_read (src, src->angle, src->change_cell, p_buf);
990 } while (res == GST_DVD_READ_AGAIN);
993 case GST_DVD_READ_ERROR:{
994 /* FIXME: figure out a way to detect if scrambling is the problem */
995 if (!gst_dvd_read_descrambler_available ()) {
996 GST_ELEMENT_ERROR (src, RESOURCE, READ,
997 (_("Could not read DVD. This may be because the DVD is encrypted "
998 "and a DVD decryption library is not installed.")), (NULL));
1000 GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
1003 return GST_FLOW_ERROR;
1005 case GST_DVD_READ_EOS:{
1006 return GST_FLOW_EOS;
1008 case GST_DVD_READ_OK:{
1009 src->change_cell = FALSE;
1016 g_return_val_if_reached (GST_FLOW_EOS);
1020 gst_dvd_read_src_set_property (GObject * object, guint prop_id,
1021 const GValue * value, GParamSpec * pspec)
1023 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1026 GST_OBJECT_LOCK (src);
1027 started = GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED);
1032 g_warning ("%s: property '%s' needs to be set before the device is "
1033 "opened", GST_ELEMENT_NAME (src), pspec->name);
1037 g_free (src->location);
1038 /* clear the filename if we get a NULL (is that possible?) */
1039 if (g_value_get_string (value) == NULL) {
1040 src->location = g_strdup ("/dev/dvd");
1042 src->location = g_value_dup_string (value);
1047 src->uri_title = g_value_get_int (value);
1049 src->title = src->uri_title - 1;
1050 src->new_seek = TRUE;
1054 src->uri_chapter = g_value_get_int (value);
1056 src->chapter = src->uri_chapter - 1;
1057 src->new_seek = TRUE;
1061 src->uri_angle = g_value_get_int (value);
1063 src->angle = src->uri_angle - 1;
1067 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1071 GST_OBJECT_UNLOCK (src);
1075 gst_dvd_read_src_get_property (GObject * object, guint prop_id, GValue * value,
1078 GstDvdReadSrc *src = GST_DVD_READ_SRC (object);
1080 GST_OBJECT_LOCK (src);
1084 g_value_set_string (value, src->location);
1087 g_value_set_int (value, src->uri_title);
1090 g_value_set_int (value, src->uri_chapter);
1093 g_value_set_int (value, src->uri_angle);
1096 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1100 GST_OBJECT_UNLOCK (src);
1104 gst_dvd_read_src_get_size (GstDvdReadSrc * src, gint64 * size)
1106 gboolean ret = FALSE;
1108 if (src->dvd_title) {
1111 blocks = DVDFileSize (src->dvd_title);
1113 *size = (gint64) blocks *DVD_VIDEO_LB_LEN;
1117 GST_WARNING_OBJECT (src, "DVDFileSize(%p) failed!", src->dvd_title);
1124 /*** Querying and seeking ***/
1127 gst_dvd_read_src_handle_seek_event (GstDvdReadSrc * src, GstEvent * event)
1130 GstSeekType cur_type, end_type;
1131 gint64 new_off, total;
1137 gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &new_off,
1141 GST_DEBUG_OBJECT (src, "cannot do backwards playback yet");
1145 if (end_type != GST_SEEK_TYPE_NONE) {
1146 if ((format != chapter_format && format != GST_FORMAT_TIME) ||
1147 end_type != GST_SEEK_TYPE_SET) {
1148 GST_DEBUG_OBJECT (src, "end seek type not supported");
1153 if (cur_type != GST_SEEK_TYPE_SET) {
1154 GST_DEBUG_OBJECT (src, "only SEEK_TYPE_SET is supported");
1158 if (format == angle_format) {
1159 GST_OBJECT_LOCK (src);
1160 if (new_off < 0 || new_off >= src->num_angles) {
1161 GST_OBJECT_UNLOCK (src);
1162 GST_DEBUG_OBJECT (src, "invalid angle %d, only %d available",
1163 src->num_angles, src->num_angles);
1166 src->angle = (gint) new_off;
1167 GST_OBJECT_UNLOCK (src);
1168 GST_DEBUG_OBJECT (src, "switched to angle %d", (gint) new_off + 1);
1172 if (format != chapter_format && format != title_format &&
1173 format != GST_FORMAT_BYTES && format != GST_FORMAT_TIME) {
1174 GST_DEBUG_OBJECT (src, "unsupported seek format %d (%s)", format,
1175 gst_format_get_name (format));
1179 if (format == GST_FORMAT_BYTES) {
1180 GST_DEBUG_OBJECT (src, "Requested seek to byte %" G_GUINT64_FORMAT,
1182 } else if (format == GST_FORMAT_TIME) {
1183 GST_DEBUG_OBJECT (src, "Requested seek to time %" GST_TIME_FORMAT,
1184 GST_TIME_ARGS (new_off));
1185 if (gst_dvd_read_src_get_sector_from_time (src, new_off) < 0) {
1186 GST_DEBUG_OBJECT (src, "Can't find sector for requested time");
1191 srcpad = GST_BASE_SRC_PAD (src);
1193 /* check whether the seek looks reasonable (ie within possible range) */
1194 if (format == GST_FORMAT_BYTES) {
1195 GST_OBJECT_LOCK (src);
1196 query_ok = gst_dvd_read_src_get_size (src, &total);
1197 GST_OBJECT_UNLOCK (src);
1199 query_ok = gst_pad_query_duration (srcpad, format, &total);
1203 GST_DEBUG_OBJECT (src, "Failed to query duration in format %s",
1204 gst_format_get_name (format));
1208 GST_DEBUG_OBJECT (src, "Total %s: %12" G_GINT64_FORMAT,
1209 gst_format_get_name (format), total);
1210 GST_DEBUG_OBJECT (src, "Seek to %s: %12" G_GINT64_FORMAT,
1211 gst_format_get_name (format), new_off);
1213 if (new_off >= total) {
1214 GST_DEBUG_OBJECT (src, "Seek position out of range");
1218 /* set segment to seek format; this allows us to use the do_seek
1219 * virtual function and let the base source handle all the tricky
1220 * stuff for us. We don't use the segment internally anyway */
1221 /* FIXME: can't take the stream lock here - what to do? */
1222 GST_OBJECT_LOCK (src);
1223 GST_BASE_SRC (src)->segment.format = format;
1224 GST_BASE_SRC (src)->segment.start = 0;
1225 GST_BASE_SRC (src)->segment.stop = total;
1226 GST_BASE_SRC (src)->segment.duration = total;
1227 GST_OBJECT_UNLOCK (src);
1229 return GST_BASE_SRC_CLASS (parent_class)->event (GST_BASE_SRC (src), event);
1233 gst_dvd_read_src_get_sector_bounds (GstDvdReadSrc * src, gint * first,
1237 cur_title_get_chapter_bounds (src, 0, &c1, &tmp);
1238 cur_title_get_chapter_bounds (src, src->num_chapters - 1, &tmp, &c2);
1239 *first = src->cur_pgc->cell_playback[c1].first_sector;
1240 *last = src->cur_pgc->cell_playback[c2].last_sector;
1244 gst_dvd_read_src_do_seek (GstBaseSrc * basesrc, GstSegment * s)
1248 src = GST_DVD_READ_SRC (basesrc);
1250 GST_DEBUG_OBJECT (src, "Seeking to %s: %12" G_GINT64_FORMAT,
1251 gst_format_get_name (s->format), s->position);
1253 /* Ignore the first seek to 0, as it breaks starting playback
1254 * from another chapter by seeking back to sector 0 */
1255 if (src->first_seek && s->format == GST_FORMAT_BYTES && s->start == 0) {
1256 src->first_seek = FALSE;
1260 if (s->format == sector_format || s->format == GST_FORMAT_BYTES
1261 || s->format == GST_FORMAT_TIME) {
1264 old = src->cur_pack;
1266 if (s->format == sector_format) {
1268 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1269 GST_DEBUG_OBJECT (src, "Format is sector, seeking to %" G_GINT64_FORMAT,
1271 src->cur_pack = s->position;
1272 if (src->cur_pack < first)
1273 src->cur_pack = first;
1274 if (src->cur_pack > last)
1275 src->cur_pack = last;
1276 } else if (s->format == GST_FORMAT_TIME) {
1278 GST_DEBUG_OBJECT (src, "Format is time");
1280 sector = gst_dvd_read_src_get_sector_from_time (src, s->position);
1282 GST_DEBUG_OBJECT (src, "Time %" GST_TIME_FORMAT " => sector %d",
1283 GST_TIME_ARGS (s->position), sector);
1285 /* really shouldn't happen, we've checked this earlier ... */
1286 g_return_val_if_fail (sector >= 0, FALSE);
1288 src->cur_pack = sector;
1292 gst_dvd_read_src_get_sector_bounds (src, &first, &last);
1293 GST_DEBUG_OBJECT (src, "Format is byte");
1294 src->cur_pack = s->position / DVD_VIDEO_LB_LEN;
1295 if (((gint64) src->cur_pack * DVD_VIDEO_LB_LEN) != s->position) {
1296 GST_LOG_OBJECT (src, "rounded down offset %" G_GINT64_FORMAT " => %"
1297 G_GINT64_FORMAT, s->position,
1298 (gint64) src->cur_pack * DVD_VIDEO_LB_LEN);
1300 src->cur_pack += first;
1303 if (!gst_dvd_read_src_goto_sector (src, src->angle)) {
1304 GST_DEBUG_OBJECT (src, "seek to sector 0x%08x failed", src->cur_pack);
1305 src->cur_pack = old;
1309 GST_LOG_OBJECT (src, "seek to sector 0x%08x ok", src->cur_pack);
1310 } else if (s->format == chapter_format) {
1311 if (!gst_dvd_read_src_goto_chapter (src, (gint) s->position)) {
1312 GST_DEBUG_OBJECT (src, "seek to chapter %d failed",
1313 (gint) s->position + 1);
1316 GST_INFO_OBJECT (src, "seek to chapter %d ok", (gint) s->position + 1);
1317 src->chapter = s->position;
1318 } else if (s->format == title_format) {
1319 if (!gst_dvd_read_src_goto_title (src, (gint) s->position, src->angle) ||
1320 !gst_dvd_read_src_goto_chapter (src, 0)) {
1321 GST_DEBUG_OBJECT (src, "seek to title %d failed", (gint) s->position);
1324 src->title = (gint) s->position;
1326 GST_INFO_OBJECT (src, "seek to title %d ok", src->title + 1);
1328 g_return_val_if_reached (FALSE);
1331 src->need_newsegment = TRUE;
1336 gst_dvd_read_src_src_event (GstBaseSrc * basesrc, GstEvent * event)
1338 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1341 GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
1343 switch (GST_EVENT_TYPE (event)) {
1344 case GST_EVENT_SEEK:
1345 res = gst_dvd_read_src_handle_seek_event (src, event);
1348 res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
1356 gst_dvd_read_src_make_clut_change_event (GstDvdReadSrc * src,
1357 const guint32 * clut)
1359 GstStructure *structure;
1363 structure = gst_structure_new ("application/x-gst-dvd",
1364 "event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
1366 /* Create a separate field for each value in the table. */
1367 for (i = 0; i < 16; i++) {
1368 g_snprintf (name, sizeof (name), "clut%02d", i);
1369 gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
1372 /* Create the DVD event and put the structure into it. */
1373 return gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_STICKY, structure);
1377 gst_dvd_read_src_convert_timecode (dvd_time_t * time)
1380 const gint64 one_hour = 3600 * GST_SECOND;
1381 const gint64 one_min = 60 * GST_SECOND;
1383 g_return_val_if_fail ((time->hour >> 4) < 0xa
1384 && (time->hour & 0xf) < 0xa, -1);
1385 g_return_val_if_fail ((time->minute >> 4) < 0x7
1386 && (time->minute & 0xf) < 0xa, -1);
1387 g_return_val_if_fail ((time->second >> 4) < 0x7
1388 && (time->second & 0xf) < 0xa, -1);
1390 ret_time = ((time->hour >> 4) * 10 + (time->hour & 0xf)) * one_hour;
1391 ret_time += ((time->minute >> 4) * 10 + (time->minute & 0xf)) * one_min;
1392 ret_time += ((time->second >> 4) * 10 + (time->second & 0xf)) * GST_SECOND;
1398 gst_dvd_read_src_do_duration_query (GstDvdReadSrc * src, GstQuery * query)
1403 gst_query_parse_duration (query, &format, NULL);
1406 case GST_FORMAT_TIME:{
1407 if (src->cur_pgc == NULL)
1409 val = gst_dvd_read_src_convert_timecode (&src->cur_pgc->playback_time);
1414 case GST_FORMAT_BYTES:{
1415 if (!gst_dvd_read_src_get_size (src, &val))
1420 if (format == sector_format) {
1421 val = DVDFileSize (src->dvd_title);
1422 } else if (format == title_format) {
1423 val = src->tt_srpt->nr_of_srpts;
1424 } else if (format == chapter_format) {
1425 val = src->num_chapters;
1426 } else if (format == angle_format) {
1427 val = src->tt_srpt->title[src->title].nr_of_angles;
1429 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1430 format, gst_format_get_name (format));
1437 GST_LOG_OBJECT (src, "duration = %" G_GINT64_FORMAT " %s", val,
1438 gst_format_get_name (format));
1440 gst_query_set_duration (query, format, val);
1445 gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
1450 gst_query_parse_position (query, &format, NULL);
1453 case GST_FORMAT_BYTES:{
1454 val = (gint64) src->cur_pack * DVD_VIDEO_LB_LEN;
1458 if (format == sector_format) {
1459 val = src->cur_pack;
1460 } else if (format == title_format) {
1462 } else if (format == chapter_format) {
1464 } else if (format == angle_format) {
1467 GST_DEBUG_OBJECT (src, "Don't know how to handle format %d (%s)",
1468 format, gst_format_get_name (format));
1475 GST_LOG_OBJECT (src, "position = %" G_GINT64_FORMAT " %s", val,
1476 gst_format_get_name (format));
1478 gst_query_set_position (query, format, val);
1483 gst_dvd_read_src_do_convert_query (GstDvdReadSrc * src, GstQuery * query)
1485 GstFormat src_format, dest_format;
1486 gboolean ret = FALSE;
1487 gint64 src_val, dest_val = -1;
1489 gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
1491 if (src_format == dest_format) {
1497 /* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
1498 * Note: title and chapter are counted as starting from 0 here, just like
1499 * in the context of seek events. Another note: DEFAULT format is undefined */
1501 if (src_format == GST_FORMAT_BYTES) {
1502 src_format = sector_format;
1503 src_val /= DVD_VIDEO_LB_LEN;
1506 if (src_format == sector_format) {
1508 if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
1509 dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
1510 ret = (dest_val >= 0);
1511 } else if (dest_format == GST_FORMAT_BYTES) {
1512 dest_val = src_val * DVD_VIDEO_LB_LEN;
1517 } else if (src_format == title_format) {
1519 if (dest_format == GST_FORMAT_TIME) {
1520 /* not really true, but we use this to trick the base source into
1521 * handling seeks in title-format for us (the source won't know that
1522 * we changed the title in this case) (changing titles should really
1523 * be done with an interface rather than a seek, but for now we're
1524 * stuck with this mechanism. Fix in 0.11) */
1525 dest_val = (GstClockTime) 0;
1530 } else if (src_format == chapter_format) {
1531 /* CHAPTER => xyz */
1532 if (dest_format == GST_FORMAT_TIME) {
1533 if (src->num_chapters >= 0 && src_val < src->num_chapters) {
1534 dest_val = src->chapter_starts[src_val];
1537 } else if (dest_format == sector_format) {
1541 } else if (src_format == GST_FORMAT_TIME) {
1543 if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
1544 dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
1545 ret = (dest_val >= 0);
1546 if (dest_format == GST_FORMAT_BYTES)
1547 dest_val *= DVD_VIDEO_LB_LEN;
1548 } else if (dest_format == chapter_format) {
1549 if (src->chapter_starts != NULL) {
1552 for (i = src->num_chapters - 1; i >= 0; --i) {
1553 if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
1572 gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
1579 gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
1581 GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
1582 gboolean res = TRUE;
1584 GST_LOG_OBJECT (src, "handling %s query", GST_QUERY_TYPE_NAME (query));
1586 switch (GST_QUERY_TYPE (query)) {
1587 case GST_QUERY_DURATION:
1588 GST_OBJECT_LOCK (src);
1589 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1590 res = gst_dvd_read_src_do_duration_query (src, query);
1592 GST_DEBUG_OBJECT (src, "query failed: not started");
1595 GST_OBJECT_UNLOCK (src);
1597 case GST_QUERY_POSITION:
1598 GST_OBJECT_LOCK (src);
1599 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1600 res = gst_dvd_read_src_do_position_query (src, query);
1602 GST_DEBUG_OBJECT (src, "query failed: not started");
1605 GST_OBJECT_UNLOCK (src);
1607 case GST_QUERY_CONVERT:
1608 GST_OBJECT_LOCK (src);
1609 if (GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1610 res = gst_dvd_read_src_do_convert_query (src, query);
1612 GST_DEBUG_OBJECT (src, "query failed: not started");
1615 GST_OBJECT_UNLOCK (src);
1618 res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
1626 gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
1628 gint seek_to = src->cur_pack;
1629 gint chapter, next, cur, i;
1631 /* retrieve position */
1633 GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
1634 seek_to, angle, src->num_chapters);
1636 for (i = 0; i < src->num_chapters; i++) {
1639 cur_title_get_chapter_bounds (src, i, &c1, &c2);
1640 GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
1642 for (next = cur = c1; cur < c2;) {
1643 gint first = src->cur_pgc->cell_playback[cur].first_sector;
1644 gint last = src->cur_pgc->cell_playback[cur].last_sector;
1645 GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
1647 if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)
1649 next = gst_dvd_read_src_get_next_cell (src, src->cur_pgc, cur);
1650 /* seeking to 0 should end up at first chapter in any case */
1651 if ((seek_to >= first && seek_to <= last) || (seek_to == 0 && i == 0)) {
1652 GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
1659 GST_DEBUG_OBJECT (src, "Seek to sector %u failed", seek_to);
1665 /* so chapter $chapter and cell $cur contain our sector
1666 * of interest. Let's go there! */
1667 GST_INFO_OBJECT (src, "Seek succeeded, going to chapter %u, cell %u",
1670 gst_dvd_read_src_goto_chapter (src, chapter);
1671 src->cur_cell = cur;
1672 src->next_cell = next;
1673 src->new_cell = FALSE;
1674 src->cur_pack = seek_to;
1681 /*** URI interface ***/
1684 gst_dvd_read_src_uri_get_type (GType type)
1689 static const gchar *const *
1690 gst_dvd_read_src_uri_get_protocols (GType type)
1692 static const gchar *protocols[] = { "dvd", NULL };
1698 gst_dvd_read_src_uri_get_uri (GstURIHandler * handler)
1700 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1703 GST_OBJECT_LOCK (src);
1704 uri = g_strdup_printf ("dvd://%d,%d,%d", src->uri_title, src->uri_chapter,
1706 GST_OBJECT_UNLOCK (src);
1712 gst_dvd_read_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
1715 GstDvdReadSrc *src = GST_DVD_READ_SRC (handler);
1717 /* parse out the new t/c/a and seek to them */
1719 gchar *location = NULL;
1724 location = gst_uri_get_location (uri);
1726 GST_OBJECT_LOCK (src);
1729 src->uri_chapter = 1;
1733 goto empty_location;
1735 strcur = strs = g_strsplit (location, ",", 0);
1736 while (strcur && *strcur) {
1739 if (!sscanf (*strcur, "%d", &val))
1743 g_warning ("Invalid value %d in URI '%s'. Must be 1 or greater",
1750 src->uri_title = val;
1753 src->uri_chapter = val;
1756 src->uri_angle = val;
1764 if (pos > 0 && GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED)) {
1765 src->title = src->uri_title - 1;
1766 src->chapter = src->uri_chapter - 1;
1767 src->angle = src->uri_angle - 1;
1768 src->new_seek = TRUE;
1776 GST_OBJECT_UNLOCK (src);
1783 gst_dvd_read_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
1785 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
1787 iface->get_type = gst_dvd_read_src_uri_get_type;
1788 iface->get_protocols = gst_dvd_read_src_uri_get_protocols;
1789 iface->get_uri = gst_dvd_read_src_uri_get_uri;
1790 iface->set_uri = gst_dvd_read_src_uri_set_uri;
1794 dvdread_element_init (GstPlugin * plugin)
1796 GST_DEBUG_CATEGORY_INIT (gstgst_dvd_read_src_debug, "dvdreadsrc", 0,
1797 "DVD reader element based on dvdreadsrc");
1800 GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
1802 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1803 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1804 #endif /* ENABLE_NLS */
1805 return gst_element_register (plugin, "dvdreadsrc", GST_RANK_NONE,
1806 GST_TYPE_DVD_READ_SRC);
1810 plugin_init (GstPlugin * plugin)
1812 return GST_ELEMENT_REGISTER (dvdreadsrc, plugin);
1815 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1818 "Access a DVD with dvdread",
1819 plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);