access.c
上传用户:riyaled888
上传日期:2009-03-27
资源大小:7338k
文件大小:51k
- /*****************************************************************************
- * vcd.c : VCD input module for vlc
- * using libcdio, libvcd and libvcdinfo. vlc-specific things tend
- * to go here.
- *****************************************************************************
- * Copyright (C) 2000, 2003, 2004 VideoLAN
- * $Id: access.c 8313 2004-07-29 15:18:04Z hartman $
- *
- * Authors: Rocky Bernstein <rocky@panix.com>
- * Johan Bilien <jobi@via.ecp.fr>
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <vlc/vlc.h>
- #include <vlc/input.h>
- #include <vlc/intf.h>
- #include "../../demux/mpeg/system.h"
- #include "vcd.h"
- #include "vcdplayer.h"
- #include "intf.h"
- #include <cdio/cdio.h>
- #include <cdio/cd_types.h>
- #include <cdio/logging.h>
- #include <cdio/util.h>
- #include <libvcd/info.h>
- #include <libvcd/logging.h>
- #include "cdrom.h"
- /* how many blocks VCDRead will read in each loop */
- #define VCD_BLOCKS_ONCE 20
- #define VCD_DATA_ONCE (VCD_BLOCKS_ONCE * M2F2_SECTOR_SIZE)
- #define VCD_MRL_PREFIX "vcdx://"
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- /* First those which are accessed from outside (via pointers). */
- static int VCDRead ( input_thread_t *, byte_t *, size_t );
- static int VCDSetProgram ( input_thread_t *, pgrm_descriptor_t * );
- /* Now those which are strictly internal */
- static void VCDSetOrigin ( input_thread_t *, lsn_t origin_lsn,
- lsn_t cur_lsn, lsn_t end_lsn,
- int cur_entry, track_t track );
- static int VCDEntryPoints ( input_thread_t * );
- static int VCDLIDs ( input_thread_t * );
- static int VCDSegments ( input_thread_t * );
- static void VCDTracks ( input_thread_t * );
- static int VCDReadSector ( vlc_object_t *p_this,
- const vcdinfo_obj_t *p_vcd, lsn_t cur_lsn,
- byte_t * p_buffer );
- static char *VCDParse ( input_thread_t *,
- /*out*/ vcdinfo_itemid_t * p_itemid ,
- /*out*/ vlc_bool_t *play_single_item );
- static void VCDUpdateVar( input_thread_t *p_input, int i_entry, int i_action,
- const char *p_varname, char *p_label,
- const char *p_debug_label );
- static vcdinfo_obj_t *vcd_Open ( vlc_object_t *p_this, const char *psz_dev );
- /****************************************************************************
- * Private functions
- ****************************************************************************/
- /* FIXME: This variable is a hack. Would be nice to eliminate the
- global-ness. */
- static input_thread_t *p_vcd_input = NULL;
- /* process messages that originate from libcdio. */
- static void
- cdio_log_handler (cdio_log_level_t level, const char message[])
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_vcd_input->p_access_data;
- switch (level) {
- case CDIO_LOG_DEBUG:
- case CDIO_LOG_INFO:
- if (p_vcd->i_debug & INPUT_DBG_CDIO)
- msg_Dbg( p_vcd_input, message);
- break;
- case CDIO_LOG_WARN:
- msg_Warn( p_vcd_input, message);
- break;
- case CDIO_LOG_ERROR:
- case CDIO_LOG_ASSERT:
- msg_Err( p_vcd_input, message);
- break;
- default:
- msg_Warn( p_vcd_input, message,
- _("The above message had unknown log level"),
- level);
- }
- return;
- }
- /* process messages that originate from vcdinfo. */
- static void
- vcd_log_handler (vcd_log_level_t level, const char message[])
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_vcd_input->p_access_data;
- switch (level) {
- case VCD_LOG_DEBUG:
- case VCD_LOG_INFO:
- if (p_vcd->i_debug & INPUT_DBG_VCDINFO)
- msg_Dbg( p_vcd_input, message);
- break;
- case VCD_LOG_WARN:
- msg_Warn( p_vcd_input, message);
- break;
- case VCD_LOG_ERROR:
- case VCD_LOG_ASSERT:
- msg_Err( p_vcd_input, message);
- break;
- default:
- msg_Warn( p_vcd_input, "%sn%s %d", message,
- _("The above message had unknown vcdimager log level"),
- level);
- }
- return;
- }
- /*****************************************************************************
- * VCDRead: reads i_len bytes from the VCD into p_buffer.
- *****************************************************************************
- * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
- * bytes.
- *****************************************************************************/
- static int
- VCDRead( input_thread_t * p_input, byte_t * p_buffer, size_t i_len )
- {
- thread_vcd_data_t * p_vcd= (thread_vcd_data_t *)p_input->p_access_data;
- int i_blocks;
- int i_index;
- int i_read;
- byte_t p_last_sector[ M2F2_SECTOR_SIZE ];
- i_read = 0;
- dbg_print( (INPUT_DBG_CALL), "lsn: %lu",
- (long unsigned int) p_vcd->cur_lsn );
- /* Compute the number of blocks we have to read */
- i_blocks = i_len / M2F2_SECTOR_SIZE;
- for ( i_index = 0 ; i_index < i_blocks ; i_index++ )
- {
- if ( p_vcd->cur_lsn == p_vcd->end_lsn ) {
- vcdplayer_read_status_t read_status;
- /* We've run off of the end of this entry. Do we continue or stop? */
- dbg_print( (INPUT_DBG_LSN|INPUT_DBG_PBC),
- "end reached, cur: %lu",
- (long unsigned int) p_vcd->cur_lsn );
- read_status = vcdplayer_pbc_is_on( p_vcd )
- ? vcdplayer_pbc_nav( p_input )
- : vcdplayer_non_pbc_nav( p_input );
- switch (read_status) {
- case READ_END:
- /* End reached. Return NULL to indicated this. */
- case READ_ERROR:
- /* Some sort of error. */
- return i_read;
- case READ_STILL_FRAME:
- {
- /* Reached the end of a still frame. */
- byte_t * p_buf = p_buffer;
- pgrm_descriptor_t * p_pgrm = p_input->stream.p_selected_program;;
- p_buf += (i_index*M2F2_SECTOR_SIZE);
- memset(p_buf, 0, M2F2_SECTOR_SIZE);
- p_buf += 2;
- *p_buf = 0x01;
- dbg_print(INPUT_DBG_STILL, "Handled still event");
- #if 1
- p_vcd->p_intf->p_sys->b_still = 1;
- var_SetInteger( p_input, "state", PAUSE_S );
- #endif
- vlc_mutex_lock( &p_input->stream.stream_lock );
- p_pgrm = p_input->stream.p_selected_program;
- p_pgrm->i_synchro_state = SYNCHRO_REINIT;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- input_ClockManageControl( p_input, p_pgrm, 0 );
- p_vcd->p_intf->p_sys->b_still = 1;
- var_SetInteger( p_input, "state", PAUSE_S );
- return i_read + M2F2_SECTOR_SIZE;
- }
- default:
- case READ_BLOCK:
- break;
- }
- }
- if ( VCDReadSector( VLC_OBJECT(p_input), p_vcd->vcd,
- p_vcd->cur_lsn,
- p_buffer + (i_index*M2F2_SECTOR_SIZE) ) < 0 )
- {
- LOG_ERR ("could not read sector %lu",
- (long unsigned int) p_vcd->cur_lsn );
- return -1;
- }
- p_vcd->cur_lsn ++;
- /* Update chapter */
- if( p_vcd->b_valid_ep &&
- /* FIXME kludge so that read does not update chapter
- * when a manual chapter change was requested and not
- * yet accomplished */
- !p_input->stream.p_new_area )
- {
- unsigned int i_entry = p_input->stream.p_selected_area->i_part;
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( i_entry < p_vcd->num_entries &&
- p_vcd->cur_lsn >= p_vcd->p_entries[i_entry+1] )
- {
- dbg_print( INPUT_DBG_PBC,
- "new entry, i_entry %d, sector %lu, es %u",
- i_entry, (long unsigned int) p_vcd->cur_lsn,
- p_vcd->p_entries[i_entry] );
- p_vcd->play_item.num =
- ++ p_input->stream.p_selected_area->i_part;
- p_vcd->play_item.type = VCDINFO_ITEM_TYPE_ENTRY;
- VCDUpdateVar( p_input, p_vcd->play_item.num, VLC_VAR_SETVALUE,
- "chapter", _("Entry"), "Setting entry" );
- }
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- }
- i_read += M2F2_SECTOR_SIZE;
- }
- if ( i_len % M2F2_SECTOR_SIZE ) /* this should not happen */
- {
- if ( VCDReadSector( VLC_OBJECT(p_input), p_vcd->vcd,
- p_vcd->cur_lsn, p_last_sector ) < 0 )
- {
- LOG_ERR ("could not read sector %lu",
- (long unsigned int) p_vcd->cur_lsn );
- return -1;
- }
- p_input->p_vlc->pf_memcpy( p_buffer + i_blocks * M2F2_SECTOR_SIZE,
- p_last_sector, i_len % M2F2_SECTOR_SIZE );
- i_read += i_len % M2F2_SECTOR_SIZE;
- }
- return i_read;
- }
- /*****************************************************************************
- * VCDSetProgram: Does nothing since a VCD is mono_program
- *****************************************************************************/
- static int
- VCDSetProgram( input_thread_t * p_input, pgrm_descriptor_t * p_program)
- {
- thread_vcd_data_t * p_vcd= (thread_vcd_data_t *)p_input->p_access_data;
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT), "VCDSetProgram" );
- return 0;
- }
- /*****************************************************************************
- * VCDSetArea: initialize internal data structures and input stream data
- so set subsequent reading and seeking to reflect that we are
- at track x, entry or segment y.
- This is called for each user navigation request, e.g. the GUI
- Chapter/Title selections or in initial MRL parsing.
- ****************************************************************************/
- int
- VCDSetArea( input_thread_t * p_input, input_area_t * p_area )
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t*)p_input->p_access_data;
- unsigned int i_entry = p_area->i_part;
- track_t i_track = p_area->i_id;
- int old_seekable = p_input->stream.b_seekable;
- unsigned int i_nb = p_area->i_plugin_data + p_area->i_part_nb;
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT),
- "track: %d, entry %d, seekable %d, area %lx, select area %lx ",
- i_track, i_entry, old_seekable,
- (long unsigned int) p_area,
- (long unsigned int) p_input->stream.p_selected_area );
- /* we can't use the interface slider until initilization is complete */
- p_input->stream.b_seekable = 0;
- if( p_area != p_input->stream.p_selected_area )
- {
- unsigned int i;
- /* If is the result of a track change, make the entry valid. */
- if (i_entry < p_area->i_plugin_data || i_entry >= i_nb)
- i_entry = p_area->i_plugin_data;
- /* Change the default area */
- p_input->stream.p_selected_area = p_area;
- /* Update the navigation variables without triggering a callback */
- VCDUpdateVar( p_input, i_track, VLC_VAR_SETVALUE, "title",
- _("Track"), "Setting track");
- var_Change( p_input, "chapter", VLC_VAR_CLEARCHOICES, NULL, NULL );
- for( i = p_area->i_plugin_data; i < i_nb; i++ )
- {
- VCDUpdateVar( p_input, i , VLC_VAR_ADDCHOICE,
- "chapter",
- p_vcd->play_item.type == VCDINFO_ITEM_TYPE_SEGMENT ?
- _("Segment"): _("Entry"),
- "Adding entry choice");
- }
- if (p_vcd->b_svd) {
- unsigned int audio_type =
- vcdinfo_get_track_audio_type(p_vcd->vcd, i_track);
- unsigned int i_channels =
- vcdinfo_audio_type_num_channels(p_vcd->vcd, audio_type);
-
- var_Change( p_input, "audio_channels", VLC_VAR_CLEARCHOICES, NULL,
- NULL );
-
- for( i = 0; i < i_channels; i++ )
- {
- VCDUpdateVar( p_input, i , VLC_VAR_ADDCHOICE,
- "audio_channels", NULL, "Adding audio choice");
- }
- }
- }
- if (i_track == 0)
- VCDSetOrigin( p_input, p_vcd->p_segments[i_entry],
- p_vcd->p_segments[i_entry], p_vcd->p_segments[i_entry+1],
- i_entry, 0 );
- else
- VCDSetOrigin( p_input, p_vcd->p_sectors[i_track],
- vcdinfo_get_entry_lsn(p_vcd->vcd, i_entry),
- p_vcd->p_sectors[i_track+1],
- i_entry, i_track );
- p_input->stream.b_seekable = old_seekable;
- /* warn interface that something has changed */
- p_input->stream.b_changed = 1;
- return VLC_SUCCESS;
- }
- /****************************************************************************
- * VCDSeek
- ****************************************************************************/
- void
- VCDSeek( input_thread_t * p_input, off_t i_off )
- {
- thread_vcd_data_t * p_vcd;
- unsigned int i_entry=0; /* invalid entry */
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- p_vcd->cur_lsn = p_vcd->origin_lsn + (i_off / (off_t)M2F2_SECTOR_SIZE);
- vlc_mutex_lock( &p_input->stream.stream_lock );
- #define p_area p_input->stream.p_selected_area
- /* Find entry */
- if( p_vcd->b_valid_ep )
- {
- for( i_entry = 0 ; i_entry < p_vcd->num_entries ; i_entry ++ )
- {
- if( p_vcd->cur_lsn < p_vcd->p_entries[i_entry] )
- {
- VCDUpdateVar( p_input, i_entry, VLC_VAR_SETVALUE,
- "chapter", _("Entry"), "Setting entry" );
- break;
- }
- }
- p_vcd->play_item.num = p_area->i_part = i_entry;
- p_vcd->play_item.type = VCDINFO_ITEM_TYPE_ENTRY;
- }
- #undef p_area
- p_input->stream.p_selected_area->i_tell = i_off;
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT|INPUT_DBG_SEEK),
- "orig %lu, cur: %lu, offset: %lld, start: %lld, entry %d",
- (long unsigned int) p_vcd->origin_lsn,
- (long unsigned int) p_vcd->cur_lsn, i_off,
- p_input->stream.p_selected_area->i_start, i_entry );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- }
- /*****************************************************************************
- VCDPlay: set up internal structures so seeking/reading places an item.
- itemid: the thing to play.
- user_entry: true if itemid is a user selection (rather than internally-
- generated selection such as via PBC) in which case we may have to adjust
- for differences in numbering.
- *****************************************************************************/
- int
- VCDPlay( input_thread_t *p_input, vcdinfo_itemid_t itemid )
- {
- thread_vcd_data_t * p_vcd= (thread_vcd_data_t *)p_input->p_access_data;
- input_area_t * p_area;
- vlc_bool_t b_was_still;
- dbg_print(INPUT_DBG_CALL, "itemid.num: %d, itemid.type: %dn",
- itemid.num, itemid.type);
- if (!p_input->p_access_data) return VLC_EGENERIC;
-
- b_was_still = p_vcd->in_still;
- #define area p_input->stream.pp_areas
- switch (itemid.type) {
- case VCDINFO_ITEM_TYPE_TRACK:
- /* Valid tracks go from 1...num_tracks-1, because track 0 is unplayable.
- */
- if (itemid.num == 0 || itemid.num >= p_vcd->num_tracks) {
- LOG_ERR ("Invalid track number %d", itemid.num );
- return VLC_EGENERIC;
- }
- p_vcd->in_still = VLC_FALSE;
- p_area = area[itemid.num];
- p_area->i_part = p_area->i_plugin_data;
- p_input->stream.b_seekable = 1;
- break;
- case VCDINFO_ITEM_TYPE_SEGMENT:
- /* Valid segments go from 0...num_segments-1. */
- if (itemid.num >= p_vcd->num_segments) {
- LOG_ERR ( "Invalid segment number: %d", itemid.num );
- return VLC_EGENERIC;
- } else {
- vcdinfo_video_segment_type_t segtype =
- vcdinfo_get_video_type(p_vcd->vcd, itemid.num);
- dbg_print(INPUT_DBG_PBC, "%s (%d), seg_num: %d",
- vcdinfo_video_type2str(p_vcd->vcd, itemid.num),
- (int) segtype, itemid.num);
- p_area = area[0];
- p_area->i_part = itemid.num;
- switch (segtype)
- {
- case VCDINFO_FILES_VIDEO_NTSC_STILL:
- case VCDINFO_FILES_VIDEO_NTSC_STILL2:
- case VCDINFO_FILES_VIDEO_PAL_STILL:
- case VCDINFO_FILES_VIDEO_PAL_STILL2:
- p_input->stream.b_seekable = 0;
- p_vcd->in_still = VLC_TRUE;
- break;
- default:
- p_input->stream.b_seekable = 1;
- p_vcd->in_still = VLC_FALSE;
- }
- }
- break;
- case VCDINFO_ITEM_TYPE_LID:
- /* LIDs go from 1..num_lids. */
- if (itemid.num == 0 || itemid.num > p_vcd->num_lids) {
- LOG_ERR ( "Invalid LID number: %d", itemid.num );
- return VLC_EGENERIC;
- } else {
- p_vcd->cur_lid = itemid.num;
- vcdinfo_lid_get_pxd(p_vcd->vcd, &(p_vcd->pxd), itemid.num);
- switch (p_vcd->pxd.descriptor_type) {
- case PSD_TYPE_SELECTION_LIST:
- case PSD_TYPE_EXT_SELECTION_LIST: {
- vcdinfo_itemid_t trans_itemid;
- uint16_t trans_itemid_num;
- if (p_vcd->pxd.psd == NULL) return VLC_EGENERIC;
- trans_itemid_num = vcdinf_psd_get_itemid(p_vcd->pxd.psd);
- vcdinfo_classify_itemid(trans_itemid_num, &trans_itemid);
- p_vcd->loop_count = 1;
- p_vcd->loop_item = trans_itemid;
- return VCDPlay( p_input, trans_itemid );
- break;
- }
- case PSD_TYPE_PLAY_LIST: {
- if (p_vcd->pxd.pld == NULL) return VLC_EGENERIC;
- p_vcd->pdi = -1;
- return vcdplayer_inc_play_item(p_input)
- ? VLC_SUCCESS : VLC_EGENERIC;
- break;
- }
- case PSD_TYPE_END_LIST:
- case PSD_TYPE_COMMAND_LIST:
- default:
- ;
- }
- }
- return VLC_EGENERIC;
- case VCDINFO_ITEM_TYPE_ENTRY:
- /* Entries go from 0..num_entries-1. */
- if (itemid.num >= p_vcd->num_entries) {
- LOG_ERR ("Invalid entry number: %d", itemid.num );
- return VLC_EGENERIC;
- } else {
- track_t cur_track = vcdinfo_get_track(p_vcd->vcd, itemid.num);
- p_vcd->in_still = VLC_FALSE;
- p_area = area[cur_track];
- p_area->i_part = itemid.num;
- p_input->stream.b_seekable = 1;
- }
- break;
- default:
- LOG_ERR ("unknown entry type" );
- return VLC_EGENERIC;
- }
- VCDSetArea( p_input, p_area );
- #undef area
- #if 1
- if ( p_vcd->in_still != b_was_still ) {
- if (p_input->stream.pp_selected_es) {
- var_SetInteger( p_input, "state", PLAYING_S );
- }
- }
- #endif
- p_vcd->play_item = itemid;
- dbg_print( (INPUT_DBG_CALL),
- "i_start %lld, i_size: %lld, i_tell: %lld, lsn %lu",
- p_area->i_start, p_area->i_size,
- p_area->i_tell,
- (long unsigned int) p_vcd->cur_lsn );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- VCDEntryPoints: Reads the information about the entry points on the disc
- and initializes area information with that.
- Before calling this track information should have been read in.
- *****************************************************************************/
- static int
- VCDEntryPoints( input_thread_t * p_input )
- {
- thread_vcd_data_t * p_vcd;
- unsigned int i_nb;
- unsigned int i, i_entry_index = 0;
- unsigned int i_previous_track = CDIO_INVALID_TRACK;
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- i_nb = vcdinfo_get_num_entries(p_vcd->vcd);
- if (0 == i_nb)
- return -1;
- p_vcd->p_entries = malloc( sizeof( lba_t ) * i_nb );
- if( p_vcd->p_entries == NULL )
- {
- LOG_ERR ("not enough memory for entry points treatment" );
- return -1;
- }
- p_vcd->num_entries = 0;
- for( i = 0 ; i < i_nb ; i++ )
- {
- track_t i_track = vcdinfo_get_track(p_vcd->vcd, i);
- if( i_track <= p_input->stream.i_area_nb )
- {
- p_vcd->p_entries[i] =
- vcdinfo_get_entry_lsn(p_vcd->vcd, i);
- p_input->stream.pp_areas[i_track]->i_part_nb ++;
- /* if this entry belongs to a new track */
- if( i_track != i_previous_track )
- {
- /* i_plugin_data is used to store the first entry of the area*/
- p_input->stream.pp_areas[i_track]->i_plugin_data =
- i_entry_index;
- i_previous_track = i_track;
- p_input->stream.pp_areas[i_track]->i_part_nb = 1;
- }
- i_entry_index ++;
- p_vcd->num_entries ++;
- }
- else
- msg_Warn( p_input, "wrong track number found in entry points" );
- }
- p_vcd->b_valid_ep = VLC_TRUE;
- return 0;
- }
- /*****************************************************************************
- * VCDSegments: Reads the information about the segments the disc.
- *****************************************************************************/
- static int
- VCDSegments( input_thread_t * p_input )
- {
- thread_vcd_data_t * p_vcd;
- unsigned int i;
- unsigned int num_segments;
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- num_segments = p_vcd->num_segments = vcdinfo_get_num_segments(p_vcd->vcd);
- #define area p_input->stream.pp_areas
- /* area 0 is reserved for segments. Set Absolute start offset
- and size */
- area[0]->i_plugin_data = 0;
- input_DelArea( p_input, area[0] );
- input_AddArea( p_input, 0, 0 );
- area[0]->i_start = (off_t)p_vcd->p_sectors[0]
- * (off_t)M2F2_SECTOR_SIZE;
- area[0]->i_size = (off_t)(p_vcd->p_sectors[1] - p_vcd->p_sectors[0])
- * (off_t)M2F2_SECTOR_SIZE;
- /* Default Segment */
- area[0]->i_part = 0;
- /* i_plugin_data is used to store which entry point is the first
- of the track (area) */
- area[0]->i_plugin_data = 0;
- area[0]->i_part_nb = 0;
- dbg_print( INPUT_DBG_MRL,
- "area[0] id: %d, i_start: %lld, i_size: %lld",
- area[0]->i_id, area[0]->i_start, area[0]->i_size );
- if (num_segments == 0) return 0;
- /* We have one additional segment allocated so we can get the size
- by subtracting seg[i+1] - seg[i].
- */
- p_vcd->p_segments = malloc( sizeof( lba_t ) * (num_segments+1) );
- if( p_vcd->p_segments == NULL )
- {
- LOG_ERR ("not enough memory for segment treatment" );
- return -1;
- }
- /* Update the navigation variables without triggering a callback */
- VCDUpdateVar( p_input, 0, VLC_VAR_SETVALUE, "title", _("Track"),
- "Setting track" );
- var_Change( p_input, "chapter", VLC_VAR_CLEARCHOICES, NULL, NULL );
- for( i = 0 ; i < num_segments ; i++ )
- {
- p_vcd->p_segments[i] = vcdinfo_get_seg_lsn(p_vcd->vcd, i);
- area[0]->i_part_nb ++;
- VCDUpdateVar( p_input, i , VLC_VAR_ADDCHOICE,
- "chapter", _("Segment"), "Adding segment choice");
- }
- #undef area
- p_vcd->p_segments[num_segments] = p_vcd->p_segments[num_segments-1]+
- vcdinfo_get_seg_sector_count(p_vcd->vcd, num_segments-1);
- return 0;
- }
- /*****************************************************************************
- VCDTracks: initializes area information.
- Before calling this track information should have been read in.
- *****************************************************************************/
- static void
- VCDTracks( input_thread_t * p_input )
- {
- thread_vcd_data_t * p_vcd;
- unsigned int i;
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- #define area p_input->stream.pp_areas
- /* We start area addressing for tracks at 1 since the default area 0
- is reserved for segments */
- for( i = 1 ; i < p_vcd->num_tracks ; i++ )
- {
- /* Tracks are Program Chains */
- input_AddArea( p_input, i, i );
- /* Absolute start byte offset and byte size */
- area[i]->i_start = (off_t) p_vcd->p_sectors[i]
- * (off_t)M2F2_SECTOR_SIZE;
- area[i]->i_size = (off_t)(p_vcd->p_sectors[i+1] - p_vcd->p_sectors[i])
- * (off_t)M2F2_SECTOR_SIZE;
- /* Current entry being played in track */
- area[i]->i_part = 0;
- /* i_plugin_data is used to store which entry point is the first
- * of the track (area) */
- area[i]->i_plugin_data = 0;
- dbg_print( INPUT_DBG_MRL,
- "area[%d] id: %d, i_start: %lld, i_size: %lld",
- i, area[i]->i_id, area[i]->i_start, area[i]->i_size );
- }
- #undef area
- return ;
- }
- /*****************************************************************************
- VCDLIDs: Reads the LIST IDs from the LOT.
- *****************************************************************************/
- static int
- VCDLIDs( input_thread_t * p_input )
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- p_vcd->num_lids = vcdinfo_get_num_LIDs(p_vcd->vcd);
- p_vcd->cur_lid = VCDINFO_INVALID_ENTRY;
- if (vcdinfo_read_psd (p_vcd->vcd)) {
- vcdinfo_visit_lot (p_vcd->vcd, VLC_FALSE);
- #if FIXED
- /*
- We need to change libvcdinfo to be more robust when there are
- problems reading the extended PSD. Given that area-highlighting and
- selection features in the extended PSD haven't been implemented,
- it's best then to not try to read this at all.
- */
- if (vcdinfo_get_psd_x_size(p_vcd->vcd))
- vcdinfo_visit_lot (p_vcd->vcd, VLC_TRUE);
- #endif
- }
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_MRL),
- "num LIDs=%d", p_vcd->num_lids);
- return 0;
- }
- /*****************************************************************************
- * VCDParse: parse command line
- *****************************************************************************/
- static char *
- VCDParse( input_thread_t * p_input, /*out*/ vcdinfo_itemid_t * p_itemid,
- /*out*/ vlc_bool_t *play_single_item )
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
- char * psz_parser;
- char * psz_source;
- char * psz_next;
- if( config_GetInt( p_input, MODULE_STRING "-PBC" ) ) {
- p_itemid->type = VCDINFO_ITEM_TYPE_LID;
- p_itemid->num = 1;
- *play_single_item = VLC_FALSE;
- }
- else
- {
- p_itemid->type = VCDINFO_ITEM_TYPE_ENTRY;
- p_itemid->num = 0;
- }
- #ifdef WIN32
- /* On Win32 we want the VCD access plugin to be explicitly requested,
- * we end up with lots of problems otherwise */
- if( !p_input->psz_access || !*p_input->psz_access ) return NULL;
- #endif
- if( !p_input->psz_name )
- {
- return NULL;
- }
- psz_parser = psz_source = strdup( p_input->psz_name );
- /* Parse input string :
- * [device][@[type][title]] */
- while( *psz_parser && *psz_parser != '@' )
- {
- psz_parser++;
- }
- if( *psz_parser == '@' )
- {
- /* Found the divide between the source name and the
- type+entry number. */
- unsigned int num;
- *psz_parser = ' ';
- ++psz_parser;
- if( *psz_parser )
- {
- switch(*psz_parser) {
- case 'E':
- p_itemid->type = VCDINFO_ITEM_TYPE_ENTRY;
- ++psz_parser;
- *play_single_item = VLC_TRUE;
- break;
- case 'P':
- p_itemid->type = VCDINFO_ITEM_TYPE_LID;
- ++psz_parser;
- *play_single_item = VLC_FALSE;
- break;
- case 'S':
- p_itemid->type = VCDINFO_ITEM_TYPE_SEGMENT;
- ++psz_parser;
- *play_single_item = VLC_TRUE;
- break;
- case 'T':
- p_itemid->type = VCDINFO_ITEM_TYPE_TRACK;
- ++psz_parser;
- *play_single_item = VLC_TRUE;
- break;
- default: ;
- }
- }
- num = strtol( psz_parser, &psz_next, 10 );
- if ( *psz_parser != ' ' && *psz_next == ' ')
- {
- p_itemid->num = num;
- }
- } else {
- *play_single_item = ( VCDINFO_ITEM_TYPE_LID == p_itemid->type );
- }
- if( !*psz_source ) {
- /* No source specified, so figure it out. */
- if( !p_input->psz_access ) return NULL;
- psz_source = config_GetPsz( p_input, "vcd" );
- if( !psz_source || 0==strlen(psz_source) ) {
- /* Scan for a CD-ROM drive with a VCD in it. */
- char **cd_drives = cdio_get_devices_with_cap( NULL,
- ( CDIO_FS_ANAL_SVCD | CDIO_FS_ANAL_CVD
- |CDIO_FS_ANAL_VIDEOCD | CDIO_FS_UNKNOWN ),
- VLC_TRUE );
- if( NULL == cd_drives ) return NULL;
- if( cd_drives[0] == NULL )
- {
- cdio_free_device_list( cd_drives );
- return NULL;
- }
- psz_source = strdup( cd_drives[0] );
- cdio_free_device_list( cd_drives );
- }
- }
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_MRL),
- "source=%s entry=%d type=%d",
- psz_source, p_itemid->num, p_itemid->type);
- return psz_source;
- }
- /*
- Set's start origin subsequent seeks/reads
- */
- static void
- VCDSetOrigin( input_thread_t *p_input, lsn_t origin_lsn,
- lsn_t cur_lsn, lsn_t end_lsn, int cur_entry, track_t cur_track )
- {
- thread_vcd_data_t * p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- p_vcd->origin_lsn = origin_lsn;
- p_vcd->cur_lsn = cur_lsn;
- p_vcd->end_lsn = end_lsn;
- p_vcd->cur_track = cur_track;
- p_vcd->play_item.num = cur_entry;
- p_vcd->play_item.type = VCDINFO_ITEM_TYPE_ENTRY;
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_LSN),
- "origin: %lu, cur_lsn: %lu, end_lsn: %lu, entry: %d, track: %d",
- (long unsigned int) origin_lsn,
- (long unsigned int) cur_lsn,
- (long unsigned int) end_lsn, cur_entry, cur_track );
- p_input->stream.p_selected_area->i_tell =
- (off_t) (p_vcd->cur_lsn - p_vcd->origin_lsn) * (off_t)M2F2_SECTOR_SIZE;
- VCDUpdateVar( p_input, cur_entry, VLC_VAR_SETVALUE,
- "chapter",
- p_vcd->play_item.type == VCDINFO_ITEM_TYPE_ENTRY ?
- _("Entry") : _("Segment"),
- "Setting entry/segment");
- }
- /*****************************************************************************
- * vcd_Open: Opens a VCD device or file and returns an opaque handle
- *****************************************************************************/
- static vcdinfo_obj_t *
- vcd_Open( vlc_object_t *p_this, const char *psz_dev )
- {
- vcdinfo_obj_t *p_vcdobj;
- char *actual_dev;
- if( !psz_dev ) return NULL;
- actual_dev=strdup(psz_dev);
- if ( vcdinfo_open(&p_vcdobj, &actual_dev, DRIVER_UNKNOWN, NULL) !=
- VCDINFO_OPEN_VCD) {
- free(actual_dev);
- return NULL;
- }
- free(actual_dev);
- return p_vcdobj;
- }
- /****************************************************************************
- * VCDReadSector: Read a sector (2324 bytes)
- ****************************************************************************/
- static int
- VCDReadSector( vlc_object_t *p_this, const vcdinfo_obj_t *p_vcd,
- lsn_t cur_lsn, byte_t * p_buffer )
- {
- typedef struct {
- uint8_t subheader [8];
- uint8_t data [M2F2_SECTOR_SIZE];
- uint8_t spare [4];
- } vcdsector_t;
- vcdsector_t vcd_sector;
- if( cdio_read_mode2_sector( vcdinfo_get_cd_image( p_vcd ),
- &vcd_sector, cur_lsn, VLC_TRUE )
- != 0)
- {
- msg_Warn( p_this, "Could not read LSN %lu",
- (long unsigned int) cur_lsn );
- return -1;
- }
- memcpy (p_buffer, vcd_sector.data, M2F2_SECTOR_SIZE);
- return( 0 );
- }
- /****************************************************************************
- Update the "varname" variable to i_num without triggering a callback.
- ****************************************************************************/
- static void
- VCDUpdateVar( input_thread_t *p_input, int i_num, int i_action,
- const char *p_varname, char *p_label,
- const char *p_debug_label)
- {
- vlc_value_t val;
- val.i_int = i_num;
- if (NULL != p_vcd_input) {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_vcd_input->p_access_data;
- dbg_print( INPUT_DBG_PBC, "%s %d", p_debug_label, i_num );
- }
- if (p_label) {
- vlc_value_t text;
- text.psz_string = p_label;
- var_Change( p_input, p_varname, VLC_VAR_SETTEXT, &text, NULL );
- }
- var_Change( p_input, p_varname, i_action, &val, NULL );
- }
- static inline void
- MetaInfoAddStr(input_thread_t *p_input, char *p_cat,
- char *title, const char *str)
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- if ( str ) {
- dbg_print( INPUT_DBG_META, "field: %s: %sn", title, str);
- input_Control( p_input, INPUT_ADD_INFO, p_cat, title, "%s", str);
- }
- }
- static inline void
- MetaInfoAddNum(input_thread_t *p_input, char *p_cat, char *title, int num)
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- dbg_print( INPUT_DBG_META, "field %s: %dn", title, num);
- input_Control( p_input, INPUT_ADD_INFO, p_cat, title, "%d", num );
- }
- #define addstr(title, str)
- MetaInfoAddStr( p_input, p_cat, title, str );
- #define addnum(title, num)
- MetaInfoAddNum( p_input, p_cat, title, num );
- static void InformationCreate( input_thread_t *p_input )
- {
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
- unsigned int i_nb = vcdinfo_get_num_entries(p_vcd->vcd);
- unsigned int last_entry = 0;
- char *p_cat;
- track_t i_track;
- p_cat = _("General");
- addstr( _("VCD Format"), vcdinfo_get_format_version_str(p_vcd->vcd) );
- addstr( _("Album"), vcdinfo_get_album_id(p_vcd->vcd));
- addstr( _("Application"), vcdinfo_get_application_id(p_vcd->vcd) );
- addstr( _("Preparer"), vcdinfo_get_preparer_id(p_vcd->vcd) );
- addnum( _("Vol #"), vcdinfo_get_volume_num(p_vcd->vcd) );
- addnum( _("Vol max #"), vcdinfo_get_volume_count(p_vcd->vcd) );
- addstr( _("Volume Set"), vcdinfo_get_volumeset_id(p_vcd->vcd) );
- addstr( _("Volume"), vcdinfo_get_volume_id(p_vcd->vcd) );
- addstr( _("Publisher"), vcdinfo_get_publisher_id(p_vcd->vcd) );
- addstr( _("System Id"), vcdinfo_get_system_id(p_vcd->vcd) );
- addnum( "LIDs", vcdinfo_get_num_LIDs(p_vcd->vcd) );
- addnum( _("Entries"), vcdinfo_get_num_entries(p_vcd->vcd) );
- addnum( _("Segments"), vcdinfo_get_num_segments(p_vcd->vcd) );
- addnum( _("Tracks"), vcdinfo_get_num_tracks(p_vcd->vcd) );
- /* Spit out track information. Could also include MSF info.
- */
- #define TITLE_MAX 30
- for( i_track = 1 ; i_track < p_vcd->num_tracks ; i_track++ ) {
- char psz_track[TITLE_MAX];
- unsigned int audio_type = vcdinfo_get_track_audio_type(p_vcd->vcd,
- i_track);
- snprintf(psz_track, TITLE_MAX, "%s%02d", _("Track "), i_track);
- p_cat = psz_track;
- if (p_vcd->b_svd) {
- addnum(_("Audio Channels"),
- vcdinfo_audio_type_num_channels(p_vcd->vcd, audio_type) );
- }
- addnum(_("First Entry Point"), last_entry );
- for ( ; last_entry < i_nb
- && vcdinfo_get_track(p_vcd->vcd, last_entry) == i_track;
- last_entry++ ) ;
- addnum(_("Last Entry Point"), last_entry-1 );
- }
- }
- #define add_format_str_info(val)
- {
- const char *str = val;
- unsigned int len;
- if (val != NULL) {
- len=strlen(str);
- if (len != 0) {
- strncat(tp, str, TEMP_STR_LEN-(tp-temp_str));
- tp += len;
- }
- saw_control_prefix = VLC_FALSE;
- }
- }
- #define add_format_num_info( val, fmt )
- {
- char num_str[10];
- unsigned int len;
- sprintf(num_str, fmt, val);
- len = strlen(num_str);
- if( len != 0 )
- {
- strncat(tp, num_str, TEMP_STR_LEN-(tp-temp_str));
- tp += len;
- }
- saw_control_prefix = VLC_FALSE;
- }
- /*!
- Take a format string and expand escape sequences, that is sequences that
- begin with %, with information from the current VCD.
- The expanded string is returned. Here is a list of escape sequences:
- %A : The album information
- %C : The VCD volume count - the number of CD's in the collection.
- %c : The VCD volume num - the number of the CD in the collection.
- %F : The VCD Format, e.g. VCD 1.0, VCD 1.1, VCD 2.0, or SVCD
- %I : The current entry/segment/playback type, e.g. ENTRY, TRACK, SEGMENT...
- %L : The playlist ID prefixed with " LID" if it exists
- %M : MRL
- %N : The current number of the %I - a decimal number
- %P : The publisher ID
- %p : The preparer ID
- %S : If we are in a segment (menu), the kind of segment
- %T : The track number
- %V : The volume set ID
- %v : The volume ID
- A number between 1 and the volume count.
- %% : a %
- */
- static char *
- VCDFormatStr(const input_thread_t *p_input, thread_vcd_data_t *p_vcd,
- const char format_str[], const char *mrl,
- const vcdinfo_itemid_t *itemid)
- {
- #define TEMP_STR_SIZE 256
- #define TEMP_STR_LEN (TEMP_STR_SIZE-1)
- static char temp_str[TEMP_STR_SIZE];
- size_t i;
- char * tp = temp_str;
- vlc_bool_t saw_control_prefix = VLC_FALSE;
- size_t format_len = strlen(format_str);
- memset(temp_str, 0, TEMP_STR_SIZE);
- for (i=0; i<format_len; i++) {
- if (!saw_control_prefix && format_str[i] != '%') {
- *tp++ = format_str[i];
- saw_control_prefix = VLC_FALSE;
- continue;
- }
- switch(format_str[i]) {
- case '%':
- if (saw_control_prefix) {
- *tp++ = '%';
- }
- saw_control_prefix = !saw_control_prefix;
- break;
- case 'A':
- add_format_str_info(vcdinfo_strip_trail(vcdinfo_get_album_id(p_vcd->vcd),
- MAX_ALBUM_LEN));
- break;
- case 'c':
- add_format_num_info(vcdinfo_get_volume_num(p_vcd->vcd), "%d");
- break;
- case 'C':
- add_format_num_info(vcdinfo_get_volume_count(p_vcd->vcd), "%d");
- break;
- case 'F':
- add_format_str_info(vcdinfo_get_format_version_str(p_vcd->vcd));
- break;
- case 'I':
- {
- switch (itemid->type) {
- case VCDINFO_ITEM_TYPE_TRACK:
- strncat(tp, _("Track"), TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(_("Track"));
- break;
- case VCDINFO_ITEM_TYPE_ENTRY:
- strncat(tp, _("Entry"), TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(_("Entry"));
- break;
- case VCDINFO_ITEM_TYPE_SEGMENT:
- strncat(tp, _("Segment"), TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(_("Segment"));
- break;
- case VCDINFO_ITEM_TYPE_LID:
- strncat(tp, _("List ID"), TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(_("List ID"));
- break;
- case VCDINFO_ITEM_TYPE_SPAREID2:
- strncat(tp, _("Navigation"), TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(_("Navigation"));
- break;
- default:
- /* What to do? */
- ;
- }
- saw_control_prefix = VLC_FALSE;
- }
- break;
- case 'L':
- if (vcdplayer_pbc_is_on(p_vcd)) {
- char num_str[40];
- sprintf(num_str, "%s %d", _("List ID"), p_vcd->cur_lid);
- strncat(tp, num_str, TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(num_str);
- }
- saw_control_prefix = VLC_FALSE;
- break;
- case 'M':
- add_format_str_info(mrl);
- break;
- case 'N':
- add_format_num_info(itemid->num, "%d");
- break;
- case 'p':
- add_format_str_info(vcdinfo_get_preparer_id(p_vcd->vcd));
- break;
- case 'P':
- add_format_str_info(vcdinfo_get_publisher_id(p_vcd->vcd));
- break;
- case 'S':
- if ( VCDINFO_ITEM_TYPE_SEGMENT==itemid->type ) {
- char seg_type_str[10];
- sprintf(seg_type_str, " %s",
- vcdinfo_video_type2str(p_vcd->vcd, itemid->num));
- strncat(tp, seg_type_str, TEMP_STR_LEN-(tp-temp_str));
- tp += strlen(seg_type_str);
- }
- saw_control_prefix = VLC_FALSE;
- break;
- case 'T':
- add_format_num_info(p_vcd->cur_track, "%d");
- break;
- case 'V':
- add_format_str_info(vcdinfo_get_volumeset_id(p_vcd->vcd));
- break;
- case 'v':
- add_format_str_info(vcdinfo_get_volume_id(p_vcd->vcd));
- break;
- default:
- *tp++ = '%';
- *tp++ = format_str[i];
- saw_control_prefix = VLC_FALSE;
- }
- }
- return strdup(temp_str);
- }
- static void
- VCDCreatePlayListItem(const input_thread_t *p_input,
- thread_vcd_data_t *p_vcd,
- playlist_t *p_playlist,
- const vcdinfo_itemid_t *itemid,
- char *psz_mrl, int psz_mrl_max,
- const char *psz_source, int playlist_operation,
- int i_pos)
- {
- char *p_author;
- char *p_title;
- char c_type;
- switch(itemid->type) {
- case VCDINFO_ITEM_TYPE_TRACK:
- c_type='T';
- break;
- case VCDINFO_ITEM_TYPE_SEGMENT:
- c_type='S';
- break;
- case VCDINFO_ITEM_TYPE_LID:
- c_type='P';
- break;
- case VCDINFO_ITEM_TYPE_ENTRY:
- c_type='E';
- break;
- default:
- c_type='?';
- break;
- }
- snprintf(psz_mrl, psz_mrl_max, "%s%s@%c%u", VCD_MRL_PREFIX, psz_source,
- c_type, itemid->num);
- p_title =
- VCDFormatStr( p_input, p_vcd,
- config_GetPsz( p_input, MODULE_STRING "-title-format" ),
- psz_mrl, itemid );
-
- playlist_Add( p_playlist, psz_mrl, p_title, playlist_operation, i_pos );
- p_author =
- VCDFormatStr( p_input, p_vcd,
- config_GetPsz( p_input, MODULE_STRING "-author-format" ),
- psz_mrl, itemid );
- if( i_pos == PLAYLIST_END ) i_pos = p_playlist->i_size - 1;
- playlist_AddInfo(p_playlist, i_pos, _("General"), _("Author"), "%s",
- p_author);
- }
- static int
- VCDFixupPlayList( input_thread_t *p_input, thread_vcd_data_t *p_vcd,
- const char *psz_source, vcdinfo_itemid_t *itemid,
- vlc_bool_t play_single_item )
- {
- unsigned int i;
- playlist_t * p_playlist;
- char * psz_mrl;
- unsigned int psz_mrl_max = strlen(VCD_MRL_PREFIX) + strlen(psz_source) +
- strlen("@T") + strlen("100") + 1;
- psz_mrl = malloc( psz_mrl_max );
- if( psz_mrl == NULL )
- {
- msg_Warn( p_input, "out of memory" );
- return -1;
- }
- p_playlist = (playlist_t *) vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
- FIND_ANYWHERE );
- if( !p_playlist )
- {
- msg_Warn( p_input, "can't find playlist" );
- free(psz_mrl);
- return -1;
- }
- if ( play_single_item )
- {
- /* May fill out more information when the playlist user interface becomes
- more mature.
- */
- VCDCreatePlayListItem(p_input, p_vcd, p_playlist, itemid,
- psz_mrl, psz_mrl_max, psz_source, PLAYLIST_REPLACE,
- p_playlist->i_index);
- }
- else
- {
- vcdinfo_itemid_t list_itemid;
- list_itemid.type=VCDINFO_ITEM_TYPE_ENTRY;
- playlist_Delete( p_playlist, p_playlist->i_index);
- for( i = 0 ; i < p_vcd->num_entries ; i++ )
- {
- list_itemid.num=i;
- VCDCreatePlayListItem(p_input, p_vcd, p_playlist, &list_itemid,
- psz_mrl, psz_mrl_max, psz_source,
- PLAYLIST_APPEND, PLAYLIST_END);
- }
- playlist_Command( p_playlist, PLAYLIST_GOTO, 0 );
- }
- vlc_object_release( p_playlist );
- free(psz_mrl);
- return 0;
- }
- /*****************************************************************************
- * Public routines.
- *****************************************************************************/
- int
- E_(DebugCallback) ( vlc_object_t *p_this, const char *psz_name,
- vlc_value_t oldval, vlc_value_t val, void *p_data )
- {
- thread_vcd_data_t *p_vcd;
- if (NULL == p_vcd_input) return VLC_EGENERIC;
- p_vcd = (thread_vcd_data_t *)p_vcd_input->p_access_data;
- if (p_vcd->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT)) {
- msg_Dbg( p_vcd_input, "Old debug (x%0x) %d, new debug (x%0x) %d",
- p_vcd->i_debug, p_vcd->i_debug, val.i_int, val.i_int);
- }
- p_vcd->i_debug = val.i_int;
- return VLC_SUCCESS;
- }
- /*
- The front-ends change spu-es - which sort of represents a symbolic
- name. Internally we use spu-channel which runs from 0..3.
- So we add a callback to intercept changes to spu-es and change them
- to updates to spu-channel. Ugly.
- */
- static int
- VCDSPUCallback( vlc_object_t *p_this, const char *psz_variable,
- vlc_value_t old_val, vlc_value_t new_val, void *param)
- {
- input_thread_t *p_input = (input_thread_t *)p_this;
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
- vlc_value_t val;
-
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EVENT), "old_val: %x, new_val %x",
- old_val.i_int, new_val.i_int);
- val.i_int = new_val.i_int;
- var_Set( p_this, "spu-channel", val );
-
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- Open: open VCD.
- read in meta-information about VCD: the number of tracks, segments,
- entries, size and starting information. Then set up state variables so
- that we read/seek starting at the location specified.
- On success we return VLC_SUCCESS, on memory exhausted VLC_ENOMEM,
- and VLC_EGENERIC for some other error.
- *****************************************************************************/
- int
- E_(Open) ( vlc_object_t *p_this )
- {
- input_thread_t * p_input = (input_thread_t *)p_this;
- thread_vcd_data_t * p_vcd;
- char * psz_source;
- vcdinfo_itemid_t itemid;
- vlc_bool_t b_play_ok;
- vlc_bool_t play_single_item = VLC_FALSE;
- p_input->pf_read = VCDRead;
- p_input->pf_seek = VCDSeek;
- p_input->pf_set_area = VCDSetArea;
- p_input->pf_set_program = VCDSetProgram;
- p_vcd = malloc( sizeof(thread_vcd_data_t) );
- if( p_vcd == NULL )
- {
- LOG_ERR ("out of memory" );
- return VLC_ENOMEM;
- }
- p_input->p_access_data = (void *)p_vcd;
- p_vcd->i_debug = config_GetInt( p_this, MODULE_STRING "-debug" );
- p_vcd->in_still = VLC_FALSE;
- p_vcd->play_item.type = VCDINFO_ITEM_TYPE_NOTFOUND;
- /* Set where to log errors messages from libcdio. */
- p_vcd_input = (input_thread_t *)p_this;
- cdio_log_set_handler ( cdio_log_handler );
- vcd_log_set_handler ( vcd_log_handler );
- psz_source = VCDParse( p_input, &itemid, &play_single_item );
- if ( NULL == psz_source )
- {
- free( p_vcd );
- return( VLC_EGENERIC );
- }
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT), "source: %s: mrl: %s",
- psz_source, p_input->psz_name );
- p_vcd->p_segments = NULL;
- p_vcd->p_entries = NULL;
- /* set up input */
- p_input->i_mtu = VCD_DATA_ONCE;
- vlc_mutex_lock( &p_input->stream.stream_lock );
- /* If we are here we can control the pace... */
- p_input->stream.b_pace_control = 1;
- p_input->stream.b_seekable = 1;
- p_input->stream.p_selected_area->i_size = 0;
- p_input->stream.p_selected_area->i_tell = 0;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- if( !(p_vcd->vcd = vcd_Open( p_this, psz_source )) )
- {
- msg_Warn( p_input, "could not open %s", psz_source );
- goto err_exit;
- }
- p_vcd->b_svd= (vlc_bool_t) vcdinfo_get_tracksSVD(p_vcd->vcd);;
-
- /* Get track information. */
- p_vcd->num_tracks = ioctl_GetTracksMap( VLC_OBJECT(p_input),
- vcdinfo_get_cd_image(p_vcd->vcd),
- &p_vcd->p_sectors );
- if( p_vcd->num_tracks < 0 )
- LOG_ERR ("unable to count tracks" );
- else if( p_vcd->num_tracks <= 1 )
- LOG_ERR ("no movie tracks found" );
- if( p_vcd->num_tracks <= 1)
- {
- vcdinfo_close( p_vcd->vcd );
- goto err_exit;
- }
- /* Set stream and area data */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- /* Initialize ES structures */
- input_InitStream( p_input, sizeof( stream_ps_data_t ) );
- /* disc input method */
- p_input->stream.i_method = INPUT_METHOD_VCD;
- p_input->stream.i_area_nb = 1;
- /* Initialize segment information. */
- VCDSegments( p_input );
- /* Initialize track area information. */
- VCDTracks( p_input );
- if( VCDEntryPoints( p_input ) < 0 )
- {
- msg_Warn( p_input, "could not read entry points, will not use them" );
- p_vcd->b_valid_ep = VLC_FALSE;
- }
- if( VCDLIDs( p_input ) < 0 )
- {
- msg_Warn( p_input, "could not read entry LIDs" );
- }
- b_play_ok = (VLC_SUCCESS == VCDPlay( p_input, itemid ));
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- if ( ! b_play_ok ) {
- vcdinfo_close( p_vcd->vcd );
- goto err_exit;
- }
- if( !p_input->psz_demux || !*p_input->psz_demux )
- {
- #if FIXED
- p_input->psz_demux = "vcdx";
- #else
- p_input->psz_demux = "ps";
- #endif
- }
- p_vcd->p_intf = intf_Create( p_input, "vcdx" );
- p_vcd->p_intf->b_block = VLC_FALSE;
- intf_RunThread( p_vcd->p_intf );
- InformationCreate( p_input );
- if (play_single_item)
- VCDFixupPlayList( p_input, p_vcd, psz_source, &itemid,
- play_single_item );
- free( psz_source );
- var_AddCallback( p_this, "spu-es", VCDSPUCallback, NULL );
- return VLC_SUCCESS;
- err_exit:
- free( psz_source );
- free( p_vcd );
- return VLC_EGENERIC;
- }
- /*****************************************************************************
- * Close: closes VCD releasing allocated memory.
- *****************************************************************************/
- void
- E_(Close) ( vlc_object_t *p_this )
- {
- input_thread_t * p_input = (input_thread_t *)p_this;
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
- dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT), "VCDClose" );
- var_DelCallback( p_this, "spu-es", VCDSPUCallback, NULL );
- vcdinfo_close( p_vcd->vcd );
- free( p_vcd->p_entries );
- free( p_vcd->p_segments );
- free( p_vcd->p_sectors );
- /* For reasons that are a mystery to me we don't have to deal with
- stopping, and destroying the p_vcd->p_intf thread. And if we do
- it causes problems upstream.
- */
- if( p_vcd->p_intf != NULL )
- {
- p_vcd->p_intf = NULL;
- }
- free( p_vcd );
- p_input->p_access_data = NULL;
- p_vcd_input = NULL;
- }