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cdda.h

00001 /*****************************************************************************
00002  * cdda.h : CD-DA input module header for vlc using libcdio.
00003  *****************************************************************************
00004  * Copyright (C) 2003 the VideoLAN team
00005  * $Id: cdda.h 12632 2005-09-21 02:15:03Z rocky $
00006  *
00007  * Author: Rocky Bernstein <[email protected]>
00008  *
00009  * This program is free software; you can redistribute it and/or modify
00010  * it under the terms of the GNU General Public License as published by
00011  * the Free Software Foundation; either version 2 of the License, or
00012  * (at your option) any later version.
00013  *
00014  * This program is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  * GNU General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU General Public License
00020  * along with this program; if not, write to the Free Software
00021  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
00022  *****************************************************************************/
00023 
00024 #include <vlc/input.h>
00025 #include <cdio/cdio.h>
00026 #include <cdio/cdtext.h>
00027 #if LIBCDIO_VERSION_NUM >= 73
00028 #include <cdio/audio.h>
00029 #include <cdio/mmc.h>
00030 #endif
00031 
00032 #include "vlc_meta.h"
00033 #include "codecs.h"
00034 
00035 #ifdef HAVE_LIBCDDB
00036 #include <cddb/cddb.h>
00037 #endif
00038 
00039 
00040 #define CDDA_MRL_PREFIX "cddax://"
00041 
00042 /* Frequency of sample in bits per second. */
00043 #define CDDA_FREQUENCY_SAMPLE 44100
00044 
00045 /*****************************************************************************
00046  * Debugging
00047  *****************************************************************************/
00048 #define INPUT_DBG_META        1 /* Meta information */
00049 #define INPUT_DBG_EVENT       2 /* Trace keyboard events */
00050 #define INPUT_DBG_MRL         4 /* MRL debugging */
00051 #define INPUT_DBG_EXT         8 /* Calls from external routines */
00052 #define INPUT_DBG_CALL       16 /* all calls */
00053 #define INPUT_DBG_LSN        32 /* LSN changes */
00054 #define INPUT_DBG_SEEK       64 /* Seeks to set location */
00055 #define INPUT_DBG_CDIO      128 /* Debugging from CDIO */
00056 #define INPUT_DBG_CDDB      256 /* CDDB debugging  */
00057 
00058 #define INPUT_DEBUG 1
00059 #if INPUT_DEBUG
00060 #define dbg_print(mask, s, args...) \
00061    if (p_cdda->i_debug & mask) \
00062      msg_Dbg(p_access, "%s: "s, __func__ , ##args)
00063 #else
00064 #define dbg_print(mask, s, args...)
00065 #endif
00066 
00067 #if LIBCDIO_VERSION_NUM >= 72
00068 #include <cdio/cdda.h>
00069 #include <cdio/paranoia.h>
00070 #else
00071 #define CdIo_t CdIo
00072 #endif    
00073 
00074 typedef enum {
00075   paranoia_none    = 0, /* Note: We make use of 0 as being the same as false */
00076   paranoia_overlap = 1, 
00077   paranoia_full    = 2
00078 } paranoia_mode_t;
00079 
00080   
00081 /*****************************************************************************
00082  * cdda_data_t: CD audio information
00083  *****************************************************************************/
00084 typedef struct cdda_data_s
00085 {
00086   CdIo_t         *p_cdio;             /* libcdio CD device */
00087   track_t        i_tracks;            /* # of tracks */
00088   track_t        i_first_track;       /* # of first track */
00089   track_t        i_titles;            /* # of titles in playlist */
00090   
00091   /* Current position */
00092   track_t        i_track;             /* Current track */
00093   lsn_t          i_lsn;               /* Current Logical Sector Number */
00094   
00095   lsn_t          first_frame;         /* LSN of first frame of this track   */
00096   lsn_t          last_frame;          /* LSN of last frame of this track    */
00097   lsn_t          last_disc_frame;     /* LSN of last frame on CD            */
00098   int            i_blocks_per_read;   /* # blocks to get in a read */
00099   int            i_debug;             /* Debugging mask */
00100 
00101   /* Information about CD */
00102   vlc_meta_t    *p_meta;
00103   char *         psz_mcn;             /* Media Catalog Number */
00104   char *         psz_source;          /* CD drive or CD image filename */
00105   input_title_t *p_title[CDIO_CD_MAX_TRACKS]; /* This *is* 0 origin, not
00106                                                  track number origin */
00107 
00108 #if LIBCDIO_VERSION_NUM >= 72
00109   /* Paranoia support */
00110   paranoia_mode_t e_paranoia;         /* Use cd paranoia for reads? */
00111   cdrom_drive_t *paranoia_cd;         /* Place to store drive
00112                                          handle given by paranoia. */
00113   cdrom_paranoia_t *paranoia;
00114 
00115 #endif    
00116   
00117 #ifdef HAVE_LIBCDDB
00118   vlc_bool_t     b_cddb_enabled;      /* Use CDDB at all? */
00119   struct  {
00120     vlc_bool_t   have_info;           /* True if we have any info */
00121     cddb_disc_t *disc;                /* libcdio uses this to get disc
00122                                          info */
00123     int          disc_length;         /* Length in frames of cd. Used
00124                                          in CDDB lookups */
00125   } cddb;
00126 #endif
00127 
00128   vlc_bool_t   b_audio_ctl;           /* Use CD-Text audio controls and
00129                                          audio output? */
00130 
00131   vlc_bool_t   b_cdtext;              /* Use CD-Text at all? If not,
00132                                          cdtext_preferred is meaningless. */
00133   vlc_bool_t   b_cdtext_prefer;       /* Prefer CD-Text info over
00134                                          CDDB? If no CDDB, the issue
00135                                          is moot. */
00136 
00137   const cdtext_t *p_cdtext[CDIO_CD_MAX_TRACKS]; /* CD-Text info. Origin is NOT 
00138                                                    0 origin but origin of track
00139                                                    number (usually 1).
00140                                                  */
00141 
00142   WAVEHEADER   waveheader;            /* Wave header for the output data  */
00143   vlc_bool_t   b_header;
00144   vlc_bool_t   b_nav_mode;           /* If false we view the entire CD as
00145                                         as a unit rather than each track
00146                                         as a unit. If b_nav_mode then the
00147                                         slider area represents the Disc rather
00148                                         than a track
00149                                       */
00150   
00151   input_thread_t *p_input;
00152   
00153 } cdda_data_t;
00154 
00155 /* FIXME: This variable is a hack. Would be nice to eliminate. */
00156 extern access_t *p_cdda_input;

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