cdda.h
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上传日期:2009-03-27
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- /*****************************************************************************
- * cdda.h : CD-DA input module header for vlc using libcdio.
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: cdda.h 8952 2004-10-07 22:50:44Z rocky $
- *
- * Author: Rocky Bernstein <rocky@panix.com>
- *
- * 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.
- *****************************************************************************/
- #include <vlc/input.h>
- #include <cdio/cdio.h>
- #include <cdio/cdtext.h>
- #include "vlc_meta.h"
- #include "codecs.h"
- #ifdef HAVE_LIBCDDB
- #include <cddb/cddb.h>
- #endif
- /* Frequency of sample in bits per second. */
- #define CDDA_FREQUENCY_SAMPLE 44100
- /*****************************************************************************
- * Debugging
- *****************************************************************************/
- #define INPUT_DBG_META 1 /* Meta information */
- #define INPUT_DBG_EVENT 2 /* Trace keyboard events */
- #define INPUT_DBG_MRL 4 /* MRL debugging */
- #define INPUT_DBG_EXT 8 /* Calls from external routines */
- #define INPUT_DBG_CALL 16 /* all calls */
- #define INPUT_DBG_LSN 32 /* LSN changes */
- #define INPUT_DBG_SEEK 64 /* Seeks to set location */
- #define INPUT_DBG_CDIO 128 /* Debugging from CDIO */
- #define INPUT_DBG_CDDB 256 /* CDDB debugging */
- #define INPUT_DEBUG 1
- #if INPUT_DEBUG
- #define dbg_print(mask, s, args...)
- if (p_cdda->i_debug & mask)
- msg_Dbg(p_access, "%s: "s, __func__ , ##args)
- #else
- #define dbg_print(mask, s, args...)
- #endif
- /*****************************************************************************
- * cdda_data_t: CD audio information
- *****************************************************************************/
- typedef struct cdda_data_s
- {
- CdIo *p_cdio; /* libcdio CD device */
- track_t i_tracks; /* # of tracks */
- track_t i_first_track; /* # of first track */
- track_t i_titles; /* # of titles in playlist */
-
- /* Current position */
- track_t i_track; /* Current track */
- lsn_t i_lsn; /* Current Logical Sector Number */
- lsn_t lsn[CDIO_CD_MAX_TRACKS]; /* Track LSNs. Origin is NOT
- 0 origin but origin of track
- number (usually 1).
- */
-
- int i_blocks_per_read; /* # blocks to get in a read */
- int i_debug; /* Debugging mask */
- /* Information about CD */
- vlc_meta_t *p_meta;
- char * psz_mcn; /* Media Catalog Number */
- input_title_t *p_title[CDIO_CD_MAX_TRACKS]; /* This *is* 0 origin, not
- track number origin */
-
-
- #ifdef HAVE_LIBCDDB
- vlc_bool_t b_cddb_enabled; /* Use CDDB at all? */
- struct {
- vlc_bool_t have_info; /* True if we have any info */
- cddb_disc_t *disc; /* libcdio uses this to get disc
- info */
- int disc_length; /* Length in frames of cd. Used
- in CDDB lookups */
- } cddb;
- #endif
- vlc_bool_t b_cdtext_enabled; /* Use CD-Text at all? If not,
- cdtext_preferred is meaningless. */
- vlc_bool_t b_cdtext_prefer; /* Prefer CD-Text info over
- CDDB? If no CDDB, the issue
- is moot. */
- const cdtext_t *p_cdtext[CDIO_CD_MAX_TRACKS]; /* CD-Text info. Origin is NOT
- 0 origin but origin of track
- number (usually 1).
- */
- WAVEHEADER waveheader; /* Wave header for the output data */
- vlc_bool_t b_header;
-
- input_thread_t *p_input;
-
- } cdda_data_t;
- /* FIXME: This variable is a hack. Would be nice to eliminate. */
- extern access_t *p_cdda_input;