--- /dev/null
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * Copyright (C) 2001 Billy Biggs <vektor@dumbterm.net>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <linux/cdrom.h>
+#include <assert.h>
+
+#include <dvdsrc.h>
+
+#include "config.h"
+
+#include <dvdread/dvd_reader.h>
+#include <dvdread/ifo_types.h>
+#include <dvdread/ifo_read.h>
+#include <dvdread/nav_read.h>
+#include <dvdread/nav_print.h>
+
+struct _DVDSrcPrivate {
+ GstElement element;
+ /* pads */
+ GstPad *srcpad;
+
+ /* location */
+ gchar *location;
+
+ gboolean new_seek;
+
+ int title, chapter, angle;
+ int pgc_id, start_cell, cur_cell, cur_pack;
+ int ttn, pgn, next_cell;
+ dvd_reader_t *dvd;
+ dvd_file_t *dvd_title;
+ ifo_handle_t *vmg_file;
+ tt_srpt_t *tt_srpt;
+ ifo_handle_t *vts_file;
+ vts_ptt_srpt_t *vts_ptt_srpt;
+ pgc_t *cur_pgc;
+};
+
+
+GstElementDetails dvdsrc_details = {
+ "DVD Source",
+ "Source/File/DVD",
+ "Asynchronous read from encrypted DVD disk",
+ VERSION,
+ "Erik Walthinsen <omega@cse.ogi.edu>",
+ "(C) 2001",
+};
+
+
+/* DVDSrc signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_LOCATION,
+ ARG_TITLE,
+ ARG_CHAPTER,
+ ARG_ANGLE
+};
+
+
+static void dvdsrc_class_init (DVDSrcClass *klass);
+static void dvdsrc_init (DVDSrc *dvdsrc);
+
+static void dvdsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
+static void dvdsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+
+//static GstBuffer * dvdsrc_get (GstPad *pad);
+static void dvdsrc_loop (GstElement *element);
+//static GstBuffer * dvdsrc_get_region (GstPad *pad,gulong offset,gulong size);
+
+static GstElementStateReturn dvdsrc_change_state (GstElement *element);
+
+
+static GstElementClass *parent_class = NULL;
+//static guint dvdsrc_signals[LAST_SIGNAL] = { 0 };
+
+GType
+dvdsrc_get_type (void)
+{
+ static GType dvdsrc_type = 0;
+
+ if (!dvdsrc_type) {
+ static const GTypeInfo dvdsrc_info = {
+ sizeof(DVDSrcClass), NULL,
+ NULL,
+ (GClassInitFunc)dvdsrc_class_init,
+ NULL,
+ NULL,
+ sizeof(DVDSrc),
+ 0,
+ (GInstanceInitFunc)dvdsrc_init,
+ };
+ dvdsrc_type = g_type_register_static (GST_TYPE_ELEMENT, "DVDSrc", &dvdsrc_info, 0);
+ }
+ return dvdsrc_type;
+}
+
+static void
+dvdsrc_class_init (DVDSrcClass *klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass*)klass;
+ gstelement_class = (GstElementClass*)klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOCATION,
+ g_param_spec_string("location","location","location",
+ NULL, G_PARAM_READWRITE));
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TITLE,
+ g_param_spec_int("title","title","title",
+ 0,G_MAXINT,0,G_PARAM_READWRITE));
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHAPTER,
+ g_param_spec_int("chapter","chapter","chapter",
+ 0,G_MAXINT,0,G_PARAM_READWRITE));
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ANGLE,
+ g_param_spec_int("angle","angle","angle",
+ 0,G_MAXINT,0,G_PARAM_READWRITE));
+
+ gobject_class->set_property = GST_DEBUG_FUNCPTR(dvdsrc_set_property);
+ gobject_class->get_property = GST_DEBUG_FUNCPTR(dvdsrc_get_property);
+
+ gstelement_class->change_state = dvdsrc_change_state;
+}
+
+static void
+dvdsrc_init (DVDSrc *dvdsrc)
+{
+ dvdsrc->priv = g_new(DVDSrcPrivate, 1);
+ dvdsrc->priv->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_element_add_pad (GST_ELEMENT (dvdsrc), dvdsrc->priv->srcpad);
+ gst_element_set_loop_function (GST_ELEMENT(dvdsrc), GST_DEBUG_FUNCPTR(dvdsrc_loop));
+
+ dvdsrc->priv->location = "/dev/dvd";
+ dvdsrc->priv->new_seek = FALSE;
+ dvdsrc->priv->title = 1;
+ dvdsrc->priv->chapter = 1;
+ dvdsrc->priv->angle = 1;
+}
+
+static void
+dvdsrc_destory (DVDSrc *dvdsrc)
+{
+ // FIXME
+ g_print("FIXME\n");
+ g_free(dvdsrc->priv);
+}
+
+static void
+dvdsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ DVDSrc *src;
+ DVDSrcPrivate *priv;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_DVDSRC (object));
+
+ src = DVDSRC (object);
+ priv = src->priv;
+
+ switch (prop_id) {
+ case ARG_LOCATION:
+ /* the element must be stopped in order to do this */
+ //g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING));
+
+ if (priv->location)
+ g_free (priv->location);
+ /* clear the filename if we get a NULL (is that possible?) */
+ if (g_value_get_string (value) == NULL)
+ priv->location = "/dev/dvd";
+ /* otherwise set the new filename */
+ else
+ priv->location = g_strdup (g_value_get_string (value));
+ break;
+ case ARG_TITLE:
+ priv->title = g_value_get_int (value) - 1;
+ priv->new_seek = TRUE;
+ break;
+ case ARG_CHAPTER:
+ priv->chapter = g_value_get_int (value) - 1;
+ priv->new_seek = TRUE;
+ break;
+ case ARG_ANGLE:
+ priv->angle = g_value_get_int (value) - 1;
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+
+}
+
+static void
+dvdsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ DVDSrc *src;
+ DVDSrcPrivate *priv;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_DVDSRC (object));
+
+ src = DVDSRC (object);
+ priv = src->priv;
+
+ switch (prop_id) {
+ case ARG_LOCATION:
+ g_value_set_string (value, priv->location);
+ break;
+ case ARG_TITLE:
+ g_value_set_int (value, priv->title + 1);
+ break;
+ case ARG_CHAPTER:
+ g_value_set_int (value, priv->chapter + 1);
+ break;
+ case ARG_ANGLE:
+ g_value_set_int (value, priv->angle + 1);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/**
+ * Returns true if the pack is a NAV pack. This check is clearly insufficient,
+ * and sometimes we incorrectly think that valid other packs are NAV packs. I
+ * need to make this stronger.
+ */
+static int
+is_nav_pack( unsigned char *buffer )
+{
+ return ( buffer[ 41 ] == 0xbf && buffer[ 1027 ] == 0xbf );
+}
+
+static int
+_open(DVDSrcPrivate *priv, const gchar *location)
+{
+ g_return_val_if_fail(priv != NULL, -1);
+ g_return_val_if_fail(location != NULL, -1);
+
+ /**
+ * Open the disc.
+ */
+ priv->dvd = DVDOpen( location );
+ if( !priv->dvd ) {
+ fprintf( stderr, "Couldn't open DVD: %s\n", location );
+ return -1;
+ }
+
+
+ /**
+ * Load the video manager to find out the information about the titles on
+ * this disc.
+ */
+ priv->vmg_file = ifoOpen( priv->dvd, 0 );
+ if( !priv->vmg_file ) {
+ fprintf( stderr, "Can't open VMG info.\n" );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+ priv->tt_srpt = priv->vmg_file->tt_srpt;
+
+ return 0;
+}
+
+static int
+_close(DVDSrcPrivate *priv)
+{
+ ifoClose( priv->vts_file );
+ ifoClose( priv->vmg_file );
+ DVDCloseFile( priv->dvd_title );
+ DVDClose( priv->dvd );
+ return 0;
+}
+
+static int
+_seek(DVDSrcPrivate *priv, int title, int chapter, int angle)
+{
+ /**
+ * Make sure our title number is valid.
+ */
+ fprintf( stderr, "There are %d titles on this DVD.\n",
+ priv->tt_srpt->nr_of_srpts );
+ if( title < 0 || title >= priv->tt_srpt->nr_of_srpts ) {
+ fprintf( stderr, "Invalid title %d.\n", title + 1 );
+ ifoClose( priv->vmg_file );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+
+
+ /**
+ * Make sure the chapter number is valid for this title.
+ */
+ fprintf( stderr, "There are %d chapters in this title.\n",
+ priv->tt_srpt->title[ title ].nr_of_ptts );
+
+ if( chapter < 0 || chapter >= priv->tt_srpt->title[ title ].nr_of_ptts ) {
+ fprintf( stderr, "Invalid chapter %d\n", chapter + 1 );
+ ifoClose( priv->vmg_file );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+
+
+ /**
+ * Make sure the angle number is valid for this title.
+ */
+ fprintf( stderr, "There are %d angles in this title.\n",
+ priv->tt_srpt->title[ title ].nr_of_angles );
+ if( angle < 0 || angle >= priv->tt_srpt->title[ title ].nr_of_angles ) {
+ fprintf( stderr, "Invalid angle %d\n", angle + 1 );
+ ifoClose( priv->vmg_file );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+
+
+ /**
+ * Load the VTS information for the title set our title is in.
+ */
+ priv->vts_file = ifoOpen( priv->dvd, priv->tt_srpt->title[ title ].title_set_nr );
+ if( !priv->vts_file ) {
+ fprintf( stderr, "Can't open the title %d info file.\n",
+ priv->tt_srpt->title[ title ].title_set_nr );
+ ifoClose( priv->vmg_file );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+
+
+ /**
+ * Determine which program chain we want to watch. This is based on the
+ * chapter number.
+ */
+ priv->ttn = priv->tt_srpt->title[ title ].vts_ttn;
+ priv->vts_ptt_srpt = priv->vts_file->vts_ptt_srpt;
+ priv->pgc_id = priv->vts_ptt_srpt->title[ priv->ttn - 1 ].ptt[ chapter ].pgcn;
+ priv->pgn = priv->vts_ptt_srpt->title[ priv->ttn - 1 ].ptt[ chapter ].pgn;
+ priv->cur_pgc = priv->vts_file->vts_pgcit->pgci_srp[ priv->pgc_id - 1 ].pgc;
+ priv->start_cell = priv->cur_pgc->program_map[ priv->pgn - 1 ] - 1;
+
+
+ /**
+ * We've got enough info, time to open the title set data.
+ */
+ priv->dvd_title = DVDOpenFile( priv->dvd, priv->tt_srpt->title[ title ].title_set_nr,
+ DVD_READ_TITLE_VOBS );
+ if( !priv->dvd_title ) {
+ fprintf( stderr, "Can't open title VOBS (VTS_%02d_1.VOB).\n",
+ priv->tt_srpt->title[ title ].title_set_nr );
+ ifoClose( priv->vts_file );
+ ifoClose( priv->vmg_file );
+ DVDClose( priv->dvd );
+ return -1;
+ }
+
+ return 0;
+}
+
+static void
+dvdsrc_loop (GstElement *element)
+{
+ DVDSrc *dvdsrc;
+ DVDSrcPrivate *priv;
+
+ g_return_if_fail (element != NULL);
+ g_return_if_fail (GST_IS_DVDSRC (element));
+
+ dvdsrc = DVDSRC (element);
+ priv = dvdsrc->priv;
+ g_return_if_fail (GST_FLAG_IS_SET (dvdsrc, DVDSRC_OPEN));
+
+ do {
+ /**
+ * Playback by cell in this pgc, starting at the cell for our chapter.
+ */
+ priv->next_cell = priv->start_cell;
+ for( priv->cur_cell = priv->start_cell; priv->next_cell < priv->cur_pgc->nr_of_cells; ) {
+
+ priv->cur_cell = priv->next_cell;
+
+ /* Check if we're entering an angle block. */
+ if( priv->cur_pgc->cell_playback[ priv->cur_cell ].block_type
+ == BLOCK_TYPE_ANGLE_BLOCK ) {
+ int i;
+
+ priv->cur_cell += priv->angle;
+ for( i = 0;; ++i ) {
+ if( priv->cur_pgc->cell_playback[ priv->cur_cell + i ].block_mode
+ == BLOCK_MODE_LAST_CELL ) {
+ priv->next_cell = priv->cur_cell + i + 1;
+ break;
+ }
+ }
+ } else {
+ priv->next_cell = priv->cur_cell + 1;
+ }
+
+
+ /**
+ * We loop until we're out of this cell.
+ */
+ for( priv->cur_pack = priv->cur_pgc->cell_playback[ priv->cur_cell ].first_sector;
+ priv->cur_pack < priv->cur_pgc->cell_playback[ priv->cur_cell ].last_sector; ) {
+
+ dsi_t dsi_pack;
+ unsigned int next_vobu, next_ilvu_start, cur_output_size;
+ GstBuffer *buf;
+ unsigned char *data;
+ int len;
+
+ /* create the buffer */
+ // FIXME: should eventually use a bufferpool for this
+ buf = gst_buffer_new ();
+ g_return_if_fail (buf);
+
+ /* allocate the space for the buffer data */
+ data = g_malloc (1024 * DVD_VIDEO_LB_LEN);
+ GST_BUFFER_DATA (buf) = data;
+
+ g_return_if_fail (GST_BUFFER_DATA (buf) != NULL);
+
+ /*
+ if (priv->new_seek) {
+ _seek(priv, priv->titleid, priv->chapid, priv->angle);
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
+ priv->new_seek = FALSE;
+ }
+ */
+
+ /**
+ * Read NAV packet.
+ */
+ len = DVDReadBlocks( priv->dvd_title, priv->cur_pack, 1, data );
+ if( len == 0 ) {
+ fprintf( stderr, "Read failed for block %d\n", priv->cur_pack );
+ _close(priv);
+ gst_element_signal_eos (GST_ELEMENT (dvdsrc));
+ return;
+ }
+ assert( is_nav_pack( data ) );
+
+
+ /**
+ * Parse the contained dsi packet.
+ */
+ navRead_DSI( &dsi_pack, &(data[ DSI_START_BYTE ]) );
+ assert( priv->cur_pack == dsi_pack.dsi_gi.nv_pck_lbn );
+ //navPrint_DSI(&dsi_pack);
+
+
+ /**
+ * Determine where we go next. These values are the ones we mostly
+ * care about.
+ */
+ next_ilvu_start = priv->cur_pack
+ + dsi_pack.sml_agli.data[ priv->angle ].address;
+ cur_output_size = dsi_pack.dsi_gi.vobu_ea;
+
+
+ /**
+ * If we're not at the end of this cell, we can determine the next
+ * VOBU to display using the VOBU_SRI information section of the
+ * DSI. Using this value correctly follows the current angle,
+ * avoiding the doubled scenes in The Matrix, and makes our life
+ * really happy.
+ *
+ * Otherwise, we set our next address past the end of this cell to
+ * force the code above to go to the next cell in the program.
+ */
+ if( dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL ) {
+ next_vobu = priv->cur_pack
+ + ( dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
+ } else {
+ next_vobu = priv->cur_pack + cur_output_size + 1;
+ }
+
+ assert( cur_output_size < 1024 );
+ priv->cur_pack++;
+
+ /**
+ * Read in and output cursize packs.
+ */
+ len = DVDReadBlocks( priv->dvd_title, priv->cur_pack,
+ cur_output_size, data );
+ if( len != cur_output_size ) {
+ fprintf( stderr, "Read failed for %d blocks at %d\n",
+ cur_output_size, priv->cur_pack );
+ _close(priv);
+ gst_element_signal_eos (GST_ELEMENT (dvdsrc));
+ return;
+ }
+
+ GST_BUFFER_SIZE(buf) = cur_output_size * DVD_VIDEO_LB_LEN;
+ gst_pad_push(priv->srcpad, buf);
+ priv->cur_pack = next_vobu;
+ }
+ }
+ } while (!GST_ELEMENT_IS_COTHREAD_STOPPING (element));
+}
+
+#if 0
+static int
+_read(DVDSrcPrivate *priv, int angle, int new_seek, GstBuffer *buf)
+{
+ unsigned char *data;
+
+ data = GST_BUFFER_DATA(buf);
+
+ /**
+ * Playback by cell in this pgc, starting at the cell for our chapter.
+ */
+ if (new_seek) {
+ priv->next_cell = priv->start_cell;
+ priv->cur_cell = priv->start_cell;
+ }
+ if (priv->next_cell < priv->cur_pgc->nr_of_cells) {
+
+ priv->cur_cell = priv->next_cell;
+
+ /* Check if we're entering an angle block. */
+ if( priv->cur_pgc->cell_playback[ priv->cur_cell ].block_type
+ == BLOCK_TYPE_ANGLE_BLOCK ) {
+ int i;
+
+ priv->cur_cell += angle;
+ for( i = 0;; ++i ) {
+ if( priv->cur_pgc->cell_playback[ priv->cur_cell + i ].block_mode
+ == BLOCK_MODE_LAST_CELL ) {
+ priv->next_cell = priv->cur_cell + i + 1;
+ break;
+ }
+ }
+ } else {
+ priv->next_cell = priv->cur_cell + 1;
+ }
+
+
+ /**
+ * We loop until we're out of this cell.
+ */
+ if (priv->new_cell) {
+ priv->cur_pack = priv->cur_pgc->cell_playback[ priv->cur_cell ].first_sector;
+ priv->new_cell = FALSE;
+ }
+
+ if (priv->cur_pack < priv->cur_pgc->cell_playback[ priv->cur_cell ].last_sector; ) {
+
+ dsi_t dsi_pack;
+ unsigned int next_vobu, next_ilvu_start, cur_output_size;
+ int len;
+
+
+ /**
+ * Read NAV packet.
+ */
+ len = DVDReadBlocks( priv->title, priv->cur_pack, 1, data );
+ if( len == 0 ) {
+ fprintf( stderr, "Read failed for block %d\n", priv->cur_pack );
+ _close(priv);
+ return -1;
+ }
+ assert( is_nav_pack( data ) );
+
+
+ /**
+ * Parse the contained dsi packet.
+ */
+ navRead_DSI( &dsi_pack, &(data[ DSI_START_BYTE ]), sizeof(dsi_t) );
+ assert( priv->cur_pack == dsi_pack.dsi_gi.nv_pck_lbn );
+
+
+ /**
+ * Determine where we go next. These values are the ones we mostly
+ * care about.
+ */
+ next_ilvu_start = priv->cur_pack
+ + dsi_pack.sml_agli.data[ angle ].address;
+ cur_output_size = dsi_pack.dsi_gi.vobu_ea;
+
+
+ /**
+ * If we're not at the end of this cell, we can determine the next
+ * VOBU to display using the VOBU_SRI information section of the
+ * DSI. Using this value correctly follows the current angle,
+ * avoiding the doubled scenes in The Matrix, and makes our life
+ * really happy.
+ *
+ * Otherwise, we set our next address past the end of this cell to
+ * force the code above to go to the next cell in the program.
+ */
+ if( dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL ) {
+ next_vobu = priv->cur_pack
+ + ( dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
+ } else {
+ next_vobu = priv->cur_pack + cur_output_size + 1;
+ }
+
+ assert( cur_output_size < 1024 );
+ priv->cur_pack++;
+
+ /**
+ * Read in and output cursize packs.
+ */
+ len = DVDReadBlocks( priv->title, priv->cur_pack,
+ cur_output_size, data );
+ if( len != cur_output_size ) {
+ fprintf( stderr, "Read failed for %d blocks at %d\n",
+ cur_output_size, priv->cur_pack );
+ _close(priv);
+ return -1;
+ }
+
+ GST_BUFFER_SIZE(buf) = cur_output_size * DVD_VIDEO_LB_LEN;
+ priv->cur_pack = next_vobu;
+ }
+ } else {
+ return -1;
+ }
+
+ return 0;
+}
+
+static GstBuffer *
+dvdsrc_get (GstPad *pad)
+{
+ DVDSrc *dvdsrc;
+ DVDSrcPrivate *priv;
+ GstBuffer *buf;
+
+ g_return_val_if_fail (pad != NULL, NULL);
+ g_return_val_if_fail (GST_IS_PAD (pad), NULL);
+
+ dvdsrc = DVDSRC (gst_pad_get_parent (pad));
+ priv = dvdsrc->priv;
+ g_return_val_if_fail (GST_FLAG_IS_SET (dvdsrc, DVDSRC_OPEN),NULL);
+
+ /* create the buffer */
+ // FIXME: should eventually use a bufferpool for this
+ buf = gst_buffer_new ();
+ g_return_val_if_fail (buf, NULL);
+
+ /* allocate the space for the buffer data */
+ GST_BUFFER_DATA (buf) = g_malloc (1024 * DVD_VIDEO_LB_LEN);
+ g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
+
+ if (priv->new_seek) {
+ _seek(priv, priv->titleid, priv->chapid, priv->angle);
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
+ }
+
+ /* read it in from the file */
+ if (_read (priv, priv->angle, priv->new_seek, buf)) {
+ gst_element_signal_eos (GST_ELEMENT (dvdsrc));
+ return NULL;
+ }
+
+ if (priv->new_seek) {
+ priv->new_seek = FALSE;
+ }
+
+ return buf;
+}
+#endif
+
+/* open the file, necessary to go to RUNNING state */
+static gboolean
+dvdsrc_open_file (DVDSrc *src)
+{
+ g_return_val_if_fail (src != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_DVDSRC(src), FALSE);
+ g_return_val_if_fail (!GST_FLAG_IS_SET (src, DVDSRC_OPEN), FALSE);
+
+ if (_open(src->priv, src->priv->location))
+ return FALSE;
+ if (_seek(src->priv,
+ src->priv->title,
+ src->priv->chapter,
+ src->priv->angle))
+ return FALSE;
+
+ GST_FLAG_SET (src, DVDSRC_OPEN);
+
+ return TRUE;
+}
+
+/* close the file */
+static void
+dvdsrc_close_file (DVDSrc *src)
+{
+ g_return_if_fail (GST_FLAG_IS_SET (src, DVDSRC_OPEN));
+
+ _close(src->priv);
+
+ GST_FLAG_UNSET (src, DVDSRC_OPEN);
+}
+
+static GstElementStateReturn
+dvdsrc_change_state (GstElement *element)
+{
+ g_return_val_if_fail (GST_IS_DVDSRC (element), GST_STATE_FAILURE);
+
+ GST_DEBUG (0,"gstdisksrc: state pending %d\n", GST_STATE_PENDING (element));
+
+ /* if going down into NULL state, close the file if it's open */
+ if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
+ if (GST_FLAG_IS_SET (element, DVDSRC_OPEN))
+ dvdsrc_close_file (DVDSRC (element));
+ /* otherwise (READY or higher) we need to open the file */
+ } else {
+ if (!GST_FLAG_IS_SET (element, DVDSRC_OPEN)) {
+ if (!dvdsrc_open_file (DVDSRC (element)))
+ return GST_STATE_FAILURE;
+ }
+ }
+
+ /* if we haven't failed already, give the parent class a chance to ;-) */
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ /* create an elementfactory for the dvdsrc element */
+ factory = gst_elementfactory_new ("dvdsrc", GST_TYPE_DVDSRC,
+ &dvdsrc_details);
+ g_return_val_if_fail (factory != NULL, FALSE);
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "dvdsrc",
+ plugin_init
+};
+
projects / platform / upstream / gstreamer.git / commitdiff