vcdimager-0.7.19-cdio.tar.gz_VCDImag_VCDImager

/* $Id: vcd.c,v 1.1.2.16 2003/09/14 09:32:43 rocky Exp $ Copyright (C) 2000 Herbert Valerio Riedel <[email protected]> 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 02111-1307 USA */  #ifdef HAVE_CONFIG_H # include "config.h" #endif #include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <math.h> #include <cdio/cdio.h> #include <cdio/iso9660.h> /* public headers */ #include <libvcd/types.h> #include <libvcd/info.h> #include <libvcd/files.h> #include <libvcd/sector.h> #include <libvcd/logging.h> /* Private headers */ #include "assert.h" #include "dict.h" #include "directory.h" #include "obj.h" #include "pbc.h" #include "salloc.h" #include "util.h" #include "vcd.h" static const char _rcsid[] = "$Id: vcd.c,v 1.1.2.16 2003/09/14 09:32:43 rocky Exp $"; static const char zero[CDIO_CD_FRAMESIZE_RAW] = { 0, }; #define DEFAULT_ISO_PREPARER_ID "GNU VCDImager " VERSION " " HOST_ARCH /* exported private functions */ mpeg_sequence_t * _vcd_obj_get_sequence_by_id (VcdObj *obj, const char sequence_id[]) { VcdListNode *node; vcd_assert (sequence_id != NULL); vcd_assert (obj != NULL); _VCD_LIST_FOREACH (node, obj->mpeg_sequence_list) { mpeg_sequence_t *_sequence = _vcd_list_node_data (node); if (_sequence->id && !strcmp (sequence_id, _sequence->id)) return _sequence; } return NULL; } mpeg_sequence_t * _vcd_obj_get_sequence_by_entry_id (VcdObj *obj, const char entry_id[]) { VcdListNode *node; vcd_assert (entry_id != NULL); vcd_assert (obj != NULL); _VCD_LIST_FOREACH (node, obj->mpeg_sequence_list) { mpeg_sequence_t *_sequence = _vcd_list_node_data (node); VcdListNode *node2; /* default entry point */ if (_sequence->default_entry_id && !strcmp (entry_id, _sequence->default_entry_id)) return _sequence; /* additional entry points */ _VCD_LIST_FOREACH (node2, _sequence->entry_list) { entry_t *_entry = _vcd_list_node_data (node2); if (_entry->id && !strcmp (entry_id, _entry->id)) return _sequence; } } /* not found */ return NULL; } mpeg_segment_t * _vcd_obj_get_segment_by_id (VcdObj *obj, const char segment_id[]) { VcdListNode *node; vcd_assert (segment_id != NULL); vcd_assert (obj != NULL); _VCD_LIST_FOREACH (node, obj->mpeg_segment_list) { mpeg_segment_t *_segment = _vcd_list_node_data (node); if (_segment->id && !strcmp (segment_id, _segment->id)) return _segment; } return NULL; } bool _vcd_obj_has_cap_p (const VcdObj *obj, enum vcd_capability_t capability) { switch (capability) { case _CAP_VALID: switch (obj->type) { case VCD_TYPE_VCD: case VCD_TYPE_VCD11: case VCD_TYPE_VCD2: case VCD_TYPE_SVCD: case VCD_TYPE_HQVCD: return true; break; case VCD_TYPE_INVALID: return false; break; } break; case _CAP_MPEG2: switch (obj->type) { case VCD_TYPE_VCD: case VCD_TYPE_VCD11: case VCD_TYPE_VCD2: case VCD_TYPE_INVALID: return false; break; case VCD_TYPE_SVCD: case VCD_TYPE_HQVCD: return true; break; } break; case _CAP_PBC: switch (obj->type) { case VCD_TYPE_VCD: case VCD_TYPE_VCD11: case VCD_TYPE_INVALID: return false; break; case VCD_TYPE_VCD2: case VCD_TYPE_SVCD: case VCD_TYPE_HQVCD: return true; break; } break; case _CAP_PBC_X: switch (obj->type) { case VCD_TYPE_VCD: case VCD_TYPE_VCD11: case VCD_TYPE_INVALID: case VCD_TYPE_SVCD: case VCD_TYPE_HQVCD: return false; break; case VCD_TYPE_VCD2: return true; break; } break; case _CAP_4C_SVCD: switch (obj->type) { case VCD_TYPE_VCD: case VCD_TYPE_VCD11: case VCD_TYPE_INVALID: case VCD_TYPE_VCD2: return false; break; case VCD_TYPE_SVCD: case VCD_TYPE_HQVCD: return true; break; } break; case _CAP_PAL_BITS: return _vcd_obj_has_cap_p (obj, _CAP_PBC); /* for now */ break; case _CAP_MPEG1: return !_vcd_obj_has_cap_p (obj, _CAP_MPEG2); /* for now */ break; case _CAP_TRACK_MARGINS: return !_vcd_obj_has_cap_p (obj, _CAP_MPEG2); /* for now */ break; } vcd_assert_not_reached (); return false; } /* * public methods */ VcdObj * vcd_obj_new (vcd_type_t vcd_type) { VcdObj *new_obj = NULL; static bool _first = true; if (_first) { #if defined(_DEVELOPMENT_) vcd_warn ("initializing libvcd %s [%s]", VERSION, HOST_ARCH); vcd_warn (" "); vcd_warn (" this is the UNSTABLE development branch!"); vcd_warn (" use only if you know what you are doing"); vcd_warn (" see http://www.hvrlab.org/~hvr/vcdimager/ for more information"); vcd_warn (" "); #else vcd_debug ("initializing libvcd %s [%s]", VERSION, HOST_ARCH); #endif _first = false; } new_obj = _vcd_malloc (sizeof (VcdObj)); new_obj->type = vcd_type; if (!_vcd_obj_has_cap_p (new_obj, _CAP_VALID)) { vcd_error ("VCD type not supported"); free (new_obj); return NULL; } if (vcd_type == VCD_TYPE_VCD) vcd_warn ("VCD 1.0 support is experimental -- user feedback needed!"); new_obj->iso_volume_label = strdup (""); new_obj->iso_publisher_id = strdup (""); new_obj->iso_application_id = strdup (""); new_obj->iso_preparer_id = _vcd_strdup_upper (DEFAULT_ISO_PREPARER_ID); new_obj->info_album_id = strdup (""); new_obj->info_volume_count = 1; new_obj->info_volume_number = 1; new_obj->custom_file_list = _vcd_list_new (); new_obj->custom_dir_list = _vcd_list_new (); new_obj->mpeg_sequence_list = _vcd_list_new (); new_obj->mpeg_segment_list = _vcd_list_new (); new_obj->pbc_list = _vcd_list_new (); /* gap's defined by IEC-10149 / ECMA-130 */ /* pre-gap's for tracks but the first one */ new_obj->track_pregap = CDIO_PREGAP_SECTORS; /* post-gap after last track */ new_obj->leadout_pregap = CDIO_POSTGAP_SECTORS; if (_vcd_obj_has_cap_p (new_obj, _CAP_TRACK_MARGINS)) { new_obj->track_front_margin = 30; new_obj->track_rear_margin = 45; } else { new_obj->track_front_margin = 0; new_obj->track_rear_margin = 0; } return new_obj; } int vcd_obj_remove_item (VcdObj *obj, const char id[]) { vcd_warn ("vcd_obj_remove_item('%s') not implemented yet!", id); return -1; } static void _vcd_obj_remove_mpeg_track (VcdObj *obj, int track_id) { int length; mpeg_sequence_t *track = NULL; VcdListNode *node = NULL; vcd_assert (track_id >= 0); node = _vcd_list_at (obj->mpeg_sequence_list, track_id); vcd_assert (node != NULL); track = (mpeg_sequence_t *) _vcd_list_node_data (node); vcd_mpeg_source_destroy (track->source, true); length = track->info->packets; length += obj->track_pregap + obj->track_front_margin + 0 + obj->track_rear_margin; /* fixup offsets */