static int GetTracks( access_t *p_access, input_item_t *p_current )
{
    access_sys_t *p_sys = p_access->p_sys;

    const int i_titles = ioctl_GetTracksMap( VLC_OBJECT(p_access),
                                             p_sys->vcddev, &p_sys->p_sectors );
    if( i_titles <= 0 )
    {
        if( i_titles < 0 )
            msg_Err( p_access, "unable to count tracks" );
        else if( i_titles <= 0 )
            msg_Err( p_access, "no audio tracks found" );
        return VLC_EGENERIC;;
    }

    /* */
    input_item_SetName( p_current, "Audio CD" );

    const char *psz_album = NULL;
    const char *psz_year = NULL;
    const char *psz_genre = NULL;
    const char *psz_artist = NULL;
    const char *psz_description = NULL;

/* Return true if the given string is not NULL and not empty */
#define NONEMPTY( psz ) ( (psz) && *(psz) )
/* If the given string is NULL or empty, fill it by the return value of 'code' */
#define ON_EMPTY( psz, code ) do { if( !NONEMPTY( psz) ) { (psz) = code; } } while(0)

    /* Retreive CDDB information */
#ifdef HAVE_LIBCDDB
    char psz_year_buffer[4+1];
    msg_Dbg( p_access, "fetching infos with CDDB" );
    cddb_disc_t *p_disc = GetCDDBInfo( p_access, i_titles, p_sys->p_sectors );
    if( p_disc )
    {
        psz_album = cddb_disc_get_title( p_disc );
        psz_genre = cddb_disc_get_genre( p_disc );

        /* */
        const unsigned i_year = cddb_disc_get_year( p_disc );
        if( i_year > 0 )
        {
            psz_year = psz_year_buffer;
            snprintf( psz_year_buffer, sizeof(psz_year_buffer), "%u", i_year );
        }

        /* Set artist only if unique */
        for( int i = 0; i < i_titles; i++ )
        {
            cddb_track_t *t = cddb_disc_get_track( p_disc, i );
            if( !t )
                continue;
            const char *psz_track_artist = cddb_track_get_artist( t );
            if( psz_artist && psz_track_artist &&
                strcmp( psz_artist, psz_track_artist ) )
            {
                psz_artist = NULL;
                break;
            }
            psz_artist = psz_track_artist;
        }
    }
#endif

    /* CD-Text */
    vlc_meta_t **pp_cd_text;
    int        i_cd_text;

    if( ioctl_GetCdText( VLC_OBJECT(p_access), p_sys->vcddev, &pp_cd_text, &i_cd_text ) )
    {
        msg_Dbg( p_access, "CD-TEXT information missing" );
        i_cd_text = 0;
        pp_cd_text = NULL;
    }

    /* Retrieve CD-TEXT information but prefer CDDB */
    if( i_cd_text > 0 && pp_cd_text[0] )
    {
        const vlc_meta_t *p_disc = pp_cd_text[0];
        ON_EMPTY( psz_album,       vlc_meta_Get( p_disc, vlc_meta_Album ) );
        ON_EMPTY( psz_genre,       vlc_meta_Get( p_disc, vlc_meta_Genre ) );
        ON_EMPTY( psz_artist,      vlc_meta_Get( p_disc, vlc_meta_Artist ) );
        ON_EMPTY( psz_description, vlc_meta_Get( p_disc, vlc_meta_Description ) );
    }

    if( NONEMPTY( psz_album ) )
    {
        input_item_SetName( p_current, psz_album );
        input_item_SetAlbum( p_current, psz_album );
    }

    if( NONEMPTY( psz_genre ) )
        input_item_SetGenre( p_current, psz_genre );

    if( NONEMPTY( psz_artist ) )
        input_item_SetArtist( p_current, psz_artist );

    if( NONEMPTY( psz_year ) )
        input_item_SetDate( p_current, psz_year );

    if( NONEMPTY( psz_description ) )
        input_item_SetDescription( p_current, psz_description );

    const mtime_t i_duration = (int64_t)( p_sys->p_sectors[i_titles] - p_sys->p_sectors[0] ) *
                               CDDA_DATA_SIZE * 1000000 / 44100 / 2 / 2;
    input_item_SetDuration( p_current, i_duration );

    input_item_node_t *p_root = input_item_node_Create( p_current );

    /* Build title table */
    for( int i = 0; i < i_titles; i++ )
    {
        input_item_t *p_input_item;

        char *psz_uri, *psz_opt, *psz_first, *psz_last;
        char *psz_name;

        msg_Dbg( p_access, "track[%d] start=%d", i, p_sys->p_sectors[i] );

        /* */
        if( asprintf( &psz_uri, "cdda://%s", p_access->psz_location ) == -1 )
            psz_uri = NULL;
        if( asprintf( &psz_opt, "cdda-track=%i", i+1 ) == -1 )
            psz_opt = NULL;
        if( asprintf( &psz_first, "cdda-first-sector=%i",p_sys->p_sectors[i] ) == -1 )
            psz_first = NULL;
        if( asprintf( &psz_last, "cdda-last-sector=%i", p_sys->p_sectors[i+1] ) == -1 )
            psz_last = NULL;

        /* Define a "default name" */
        if( asprintf( &psz_name, _("Audio CD - Track %02i"), (i+1) ) == -1 )
            psz_name = NULL;

        /* Create playlist items */
        const mtime_t i_duration = (int64_t)( p_sys->p_sectors[i+1] - p_sys->p_sectors[i] ) *
                                   CDDA_DATA_SIZE * 1000000 / 44100 / 2 / 2;
        p_input_item = input_item_NewWithType( psz_uri, psz_name, 0, NULL, 0,
                                               i_duration, ITEM_TYPE_DISC );
        input_item_CopyOptions( p_current, p_input_item );
        input_item_AddOption( p_input_item, psz_first, VLC_INPUT_OPTION_TRUSTED );
        input_item_AddOption( p_input_item, psz_last, VLC_INPUT_OPTION_TRUSTED );
        input_item_AddOption( p_input_item, psz_opt, VLC_INPUT_OPTION_TRUSTED );

        const char *psz_track_title = NULL;
        const char *psz_track_artist = NULL;
        const char *psz_track_genre = NULL;
        const char *psz_track_description = NULL;

#ifdef HAVE_LIBCDDB
        /* Retreive CDDB information */
        if( p_disc )
        {
            cddb_track_t *t = cddb_disc_get_track( p_disc, i );
            if( t != NULL )
            {
                psz_track_title = cddb_track_get_title( t );
                psz_track_artist = cddb_track_get_artist( t );
            }
        }
#endif

        /* Retreive CD-TEXT information but prefer CDDB */
        if( i+1 < i_cd_text && pp_cd_text[i+1] )
        {
            const vlc_meta_t *t = pp_cd_text[i+1];

            ON_EMPTY( psz_track_title,       vlc_meta_Get( t, vlc_meta_Title ) );
            ON_EMPTY( psz_track_artist,      vlc_meta_Get( t, vlc_meta_Artist ) );
            ON_EMPTY( psz_track_genre,       vlc_meta_Get( t, vlc_meta_Genre ) );
            ON_EMPTY( psz_track_description, vlc_meta_Get( t, vlc_meta_Description ) );
        }

        /* */
        ON_EMPTY( psz_track_artist,       psz_artist );
        ON_EMPTY( psz_track_genre,        psz_genre );
        ON_EMPTY( psz_track_description,  psz_description );

        /* */
        if( NONEMPTY( psz_track_title ) )
        {
            input_item_SetName( p_input_item, psz_track_title );
            input_item_SetTitle( p_input_item, psz_track_title );
        }

        if( NONEMPTY( psz_track_artist ) )
            input_item_SetArtist( p_input_item, psz_track_artist );

        if( NONEMPTY( psz_track_genre ) )
            input_item_SetGenre( p_input_item, psz_track_genre );

        if( NONEMPTY( psz_track_description ) )
            input_item_SetDescription( p_input_item, psz_track_description );

        if( NONEMPTY( psz_album ) )
            input_item_SetAlbum( p_input_item, psz_album );

        if( NONEMPTY( psz_year ) )
            input_item_SetDate( p_input_item, psz_year );

        char psz_num[3+1];
        snprintf( psz_num, sizeof(psz_num), "%d", 1+i );
        input_item_SetTrackNum( p_input_item, psz_num );

        input_item_node_AppendItem( p_root, p_input_item );
        vlc_gc_decref( p_input_item );
        free( psz_uri ); free( psz_opt ); free( psz_name );
        free( psz_first ); free( psz_last );
    }
#undef ON_EMPTY
#undef NONEMPTY

    input_item_node_PostAndDelete( p_root );

    /* */
    for( int i = 0; i < i_cd_text; i++ )
    {
        vlc_meta_t *p_meta = pp_cd_text[i];
        if( !p_meta )
            continue;
        vlc_meta_Delete( p_meta );
    }
    free( pp_cd_text );

#ifdef HAVE_LIBCDDB
    if( p_disc )
        cddb_disc_destroy( p_disc );
#endif
    return VLC_SUCCESS;
}
Beispiel #2
0
/*****************************************************************************
 * VCDOpen: open vcd
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    access_t     *p_access = (access_t *)p_this;
    access_sys_t *p_sys;
    if( p_access->psz_filepath == NULL )
        return VLC_EGENERIC;

    char *psz_dup = ToLocaleDup( p_access->psz_filepath );
    char *psz;
    int i_title = 0;
    int i_chapter = 0;
    vcddev_t *vcddev;

    /* Command line: vcd://[dev_path][#title[,chapter]] */
    if( ( psz = strchr( psz_dup, '#' ) ) )
    {
        *psz++ = '\0';

        i_title = strtol( psz, &psz, 0 );
        if( *psz )
            i_chapter = strtol( psz+1, &psz, 0 );
    }

    if( *psz_dup == '\0' )
    {
        free( psz_dup );

        /* Only when selected */
        if( strcmp( p_access->psz_access, "vcd" ) &&
            strcmp( p_access->psz_access, "svcd" ) )
            return VLC_EGENERIC;

        psz_dup = var_CreateGetString( p_access, "vcd" );
        if( *psz_dup == '\0' )
        {
            free( psz_dup );
            return VLC_EGENERIC;
        }
    }

#if defined( WIN32 ) || defined( __OS2__ )
    if( psz_dup[0] && psz_dup[1] == ':' &&
        psz_dup[2] == '\\' && psz_dup[3] == '\0' ) psz_dup[2] = '\0';
#endif

    /* Open VCD */
    vcddev = ioctl_Open( p_this, psz_dup );
    free( psz_dup );
    if( !vcddev )
        return VLC_EGENERIC;

    /* Set up p_access */
    p_access->p_sys = p_sys = calloc( 1, sizeof( access_sys_t ) );
    if( unlikely(!p_sys ))
        goto error;
    p_sys->vcddev = vcddev;

    /* We read the Table Of Content information */
    p_sys->i_titles = ioctl_GetTracksMap( VLC_OBJECT(p_access),
                                          p_sys->vcddev, &p_sys->p_sectors );
    if( p_sys->i_titles < 0 )
    {
        msg_Err( p_access, "unable to count tracks" );
        goto error;
    }
    else if( p_sys->i_titles <= 1 )
    {
        msg_Err( p_access, "no movie tracks found" );
        goto error;
    }

    /* The first title isn't usable */
    p_sys->i_titles--;

    /* Build title table */
    for( int i = 0; i < p_sys->i_titles; i++ )
    {
        input_title_t *t = p_sys->title[i] = vlc_input_title_New();

        msg_Dbg( p_access, "title[%d] start=%d", i, p_sys->p_sectors[1+i] );
        msg_Dbg( p_access, "title[%d] end=%d", i, p_sys->p_sectors[i+2] );

        t->i_size = ( p_sys->p_sectors[i+2] - p_sys->p_sectors[i+1] ) *
                    (int64_t)VCD_DATA_SIZE;
    }

    /* Map entry points into chapters */
    if( EntryPoints( p_access ) )
    {
        msg_Warn( p_access, "could not read entry points, will not use them" );
    }

    /* Starting title/chapter and sector */
    if( i_title >= p_sys->i_titles )
        i_title = 0;
    if( i_chapter >= p_sys->title[i_title]->i_seekpoint )
        i_chapter = 0;

    p_sys->i_sector = p_sys->p_sectors[1+i_title];
    if( i_chapter > 0 )
    {
        p_sys->i_sector += ( p_sys->title[i_title]->seekpoint[i_chapter]->i_byte_offset /
                           VCD_DATA_SIZE );
    }

    /* p_access */
    p_access->pf_read    = NULL;
    p_access->pf_block   = Block;
    p_access->pf_control = Control;
    p_access->pf_seek    = Seek;

    p_access->info.i_update    = 0;
    p_access->info.b_eof       = false;

    p_access->info.i_title     = i_title;
    p_access->info.i_seekpoint = i_chapter;
    p_access->info.i_size      = p_sys->title[i_title]->i_size;
    p_access->info.i_pos       = (uint64_t)( p_sys->i_sector - p_sys->p_sectors[1+i_title] ) *
                                 VCD_DATA_SIZE;

    free( p_access->psz_demux );
    p_access->psz_demux = strdup( "ps" );

    return VLC_SUCCESS;

error:
    ioctl_Close( VLC_OBJECT(p_access), vcddev );
    free( p_sys );
    return VLC_EGENERIC;
}
/*****************************************************************************
 * Open: open cdda
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys;
    vcddev_t     *vcddev;
    char         *psz_name;

    if( !p_access->psz_filepath || !*p_access->psz_filepath )
    {
        /* Only when selected */
        if( !p_access->psz_access || !*p_access->psz_access )
            return VLC_EGENERIC;

        psz_name = var_InheritString( p_this, "cd-audio" );
        if( !psz_name )
            return VLC_EGENERIC;
    }
    else psz_name = ToLocaleDup( p_access->psz_filepath );

#if defined( _WIN32 ) || defined( __OS2__ )
    if( psz_name[0] && psz_name[1] == ':' &&
        psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
#endif

    /* Open CDDA */
    if( (vcddev = ioctl_Open( VLC_OBJECT(p_access), psz_name ) ) == NULL )
    {
        msg_Warn( p_access, "could not open %s", psz_name );
        free( psz_name );
        return VLC_EGENERIC;
    }
    free( psz_name );

    /* Set up p_access */
    STANDARD_BLOCK_ACCESS_INIT
    p_sys->vcddev = vcddev;

    /* Do we play a single track ? */
    p_sys->i_track = var_InheritInteger( p_access, "cdda-track" ) - 1;

    if( p_sys->i_track < 0 )
    {
        /* We only do separate items if the whole disc is requested */
        input_thread_t *p_input = access_GetParentInput( p_access );

        int i_ret = -1;
        if( p_input )
        {
            input_item_t *p_current = input_GetItem( p_input );
            if( p_current )
                i_ret = GetTracks( p_access, p_current );

            vlc_object_release( p_input );
        }
        if( i_ret < 0 )
            goto error;
    }
    else
    {
        /* Build a WAV header for the output data */
        memset( &p_sys->waveheader, 0, sizeof(WAVEHEADER) );
        SetWLE( &p_sys->waveheader.Format, 1 ); /*WAVE_FORMAT_PCM*/
        SetWLE( &p_sys->waveheader.BitsPerSample, 16);
        p_sys->waveheader.MainChunkID = VLC_FOURCC('R', 'I', 'F', 'F');
        p_sys->waveheader.Length = 0;               /* we just don't know */
        p_sys->waveheader.ChunkTypeID = VLC_FOURCC('W', 'A', 'V', 'E');
        p_sys->waveheader.SubChunkID = VLC_FOURCC('f', 'm', 't', ' ');
        SetDWLE( &p_sys->waveheader.SubChunkLength, 16);
        SetWLE( &p_sys->waveheader.Modus, 2);
        SetDWLE( &p_sys->waveheader.SampleFreq, 44100);
        SetWLE( &p_sys->waveheader.BytesPerSample,
                    2 /*Modus*/ * 16 /*BitsPerSample*/ / 8 );
        SetDWLE( &p_sys->waveheader.BytesPerSec,
                    2*16/8 /*BytesPerSample*/ * 44100 /*SampleFreq*/ );
        p_sys->waveheader.DataChunkID = VLC_FOURCC('d', 'a', 't', 'a');
        p_sys->waveheader.DataLength = 0;           /* we just don't know */

        p_sys->i_first_sector = var_InheritInteger( p_access,
                                                    "cdda-first-sector" );
        p_sys->i_last_sector  = var_InheritInteger( p_access,
                                                    "cdda-last-sector" );
        /* Tracknumber in MRL */
        if( p_sys->i_first_sector < 0 || p_sys->i_last_sector < 0 )
        {
            const int i_titles = ioctl_GetTracksMap( VLC_OBJECT(p_access),
                                                     p_sys->vcddev, &p_sys->p_sectors );
            if( p_sys->i_track >= i_titles )
            {
                msg_Err( p_access, "invalid track number" );
                goto error;
            }
            p_sys->i_first_sector = p_sys->p_sectors[p_sys->i_track];
            p_sys->i_last_sector = p_sys->p_sectors[p_sys->i_track+1];
        }

        p_sys->i_sector = p_sys->i_first_sector;
        p_access->info.i_size = (p_sys->i_last_sector - p_sys->i_first_sector)
                                     * (int64_t)CDDA_DATA_SIZE;
    }

    return VLC_SUCCESS;

error:
    free( p_sys->p_sectors );
    ioctl_Close( VLC_OBJECT(p_access), p_sys->vcddev );
    free( p_sys );
    return VLC_EGENERIC;
}