subtitle.c

VLC Player Source Code

        strcat( psz_text, s );
        strcat( psz_text, "\n" );
    }

    p_subtitle->psz_text = psz_text;
    return VLC_SUCCESS;
}

static int ParseJSS( demux_t *p_demux, subtitle_t *p_subtitle, int i_idx )
{
    VLC_UNUSED( i_idx );

    demux_sys_t  *p_sys = p_demux->p_sys;
    text_t       *txt = &p_sys->txt;
    char         *psz_text, *psz_orig;
    char         *psz_text2, *psz_orig2;
    int h1, h2, m1, m2, s1, s2, f1, f2;

    if( !p_sys->jss.b_inited )
    {
        p_sys->jss.i_comment = 0;
        p_sys->jss.i_time_resolution = 30;
        p_sys->jss.i_time_shift = 0;

        p_sys->jss.b_inited = true;
    }

    /* Parse the main lines */
    for( ;; )
    {
        const char *s = TextGetLine( txt );
        if( !s )
            return VLC_EGENERIC;

        psz_orig = malloc( strlen( s ) + 1 );
        if( !psz_orig )
            return VLC_ENOMEM;
        psz_text = psz_orig;

        /* Complete time lines */
        if( sscanf( s, "%d:%d:%d.%d %d:%d:%d.%d %[^\n\r]",
                    &h1, &m1, &s1, &f1, &h2, &m2, &s2, &f2, psz_text ) == 9 )
        {
            p_subtitle->i_start = ( (int64_t)( h1 *3600 + m1 * 60 + s1 ) +
                (int64_t)( ( f1 +  p_sys->jss.i_time_shift ) /  p_sys->jss.i_time_resolution ) )
                * 1000000;
            p_subtitle->i_stop = ( (int64_t)( h2 *3600 + m2 * 60 + s2 ) +
                (int64_t)( ( f2 +  p_sys->jss.i_time_shift ) /  p_sys->jss.i_time_resolution ) )
                * 1000000;
            break;
        }
        /* Short time lines */
        else if( sscanf( s, "@%d @%d %[^\n\r]", &f1, &f2, psz_text ) == 3 )
        {
            p_subtitle->i_start = (int64_t)(
                    ( f1 + p_sys->jss.i_time_shift ) / p_sys->jss.i_time_resolution * 1000000.0 );
            p_subtitle->i_stop = (int64_t)(
                    ( f2 + p_sys->jss.i_time_shift ) / p_sys->jss.i_time_resolution * 1000000.0 );
            break;
        }
        /* General Directive lines */
        /* Only TIME and SHIFT are supported so far */
        else if( s[0] == '#' )
        {
            int h = 0, m =0, sec = 1, f = 1;
            unsigned shift = 1;
            int inv = 1;

            strcpy( psz_text, s );

            switch( toupper( psz_text[1] ) )
            {
            case 'S':
                 shift = isalpha( psz_text[2] ) ? 6 : 2 ;

                 if( sscanf( &psz_text[shift], "%d", &h ) )
                 {
                     /* Negative shifting */
                     if( h < 0 )
                     {
                         h *= -1;
                         inv = -1;
                     }

                     if( sscanf( &psz_text[shift], "%*d:%d", &m ) )
                     {
                         if( sscanf( &psz_text[shift], "%*d:%*d:%d", &sec ) )
                         {
                             sscanf( &psz_text[shift], "%*d:%*d:%*d.%d", &f );
                         }
                         else
                         {
                             h = 0;
                             sscanf( &psz_text[shift], "%d:%d.%d",
                                     &m, &sec, &f );
                             m *= inv;
                         }
                     }
                     else
                     {
                         h = m = 0;
                         sscanf( &psz_text[shift], "%d.%d", &sec, &f);
                         sec *= inv;
                     }
                     p_sys->jss.i_time_shift = ( ( h * 3600 + m * 60 + sec )
                         * p_sys->jss.i_time_resolution + f ) * inv;
                 }
                 break;

            case 'T':
                shift = isalpha( psz_text[2] ) ? 8 : 2 ;

                sscanf( &psz_text[shift], "%d", &p_sys->jss.i_time_resolution );
                break;
            }
            free( psz_orig );
            continue;
        }
        else
            /* Unkown type line, probably a comment */
        {
            free( psz_orig );
            continue;
        }
    }
	
	while( psz_text[ strlen( psz_text ) - 1 ] == '\\' )
	{
        const char *s2 = TextGetLine( txt );

        if( !s2 )
            return VLC_EGENERIC;

        int i_len = strlen( s2 );
        if( i_len == 0 )
            break;

        int i_old = strlen( psz_text );

        psz_text = realloc( psz_text, i_old + i_len + 1 );
        if( !psz_text )
             return VLC_ENOMEM;

		psz_orig = psz_text;
        strcat( psz_text, s2 );
	}

    /* Skip the blanks */
    while( *psz_text == ' ' || *psz_text == '\t' ) psz_text++;

    /* Parse the directives */
    if( isalpha( *psz_text ) || *psz_text == '[' )
    {
        while( *psz_text != ' ' )
        { psz_text++ ;};

        /* Directives are NOT parsed yet */
        /* This has probably a better place in a decoder ? */
        /* directive = malloc( strlen( psz_text ) + 1 );
           if( sscanf( psz_text, "%s %[^\n\r]", directive, psz_text2 ) == 2 )*/
    }

    /* Skip the blanks after directives */
    while( *psz_text == ' ' || *psz_text == '\t' ) psz_text++;

    /* Clean all the lines from inline comments and other stuffs */
    psz_orig2 = calloc( strlen( psz_text) + 1, 1 );
    psz_text2 = psz_orig2;

    for( ; *psz_text != '\0' && *psz_text != '\n' && *psz_text != '\r'; )
    {
        switch( *psz_text )
        {
        case '{':
            p_sys->jss.i_comment++;
            break;
        case '}':
            if( p_sys->jss.i_comment )
            {
                p_sys->jss.i_comment = 0;
                if( (*(psz_text + 1 ) ) == ' ' ) psz_text++;
            }
            break;
        case '~':
            if( !p_sys->jss.i_comment )
            {
                *psz_text2 = ' ';
                psz_text2++;
            }
            break;
        case ' ':
        case '\t':
            if( (*(psz_text + 1 ) ) == ' ' || (*(psz_text + 1 ) ) == '\t' )
                break;
            if( !p_sys->jss.i_comment )
            {
                *psz_text2 = ' ';
                psz_text2++;
            }
            break;
        case '\\':
            if( (*(psz_text + 1 ) ) == 'n' )
            {
                *psz_text2 = '\n';
                psz_text++;
                psz_text2++;
                break;
            }
            if( ( toupper(*(psz_text + 1 ) ) == 'C' ) ||
                    ( toupper(*(psz_text + 1 ) ) == 'F' ) )
            {
                psz_text++; psz_text++;
                break;
            }
            if( (*(psz_text + 1 ) ) == 'B' || (*(psz_text + 1 ) ) == 'b' ||
                (*(psz_text + 1 ) ) == 'I' || (*(psz_text + 1 ) ) == 'i' ||
                (*(psz_text + 1 ) ) == 'U' || (*(psz_text + 1 ) ) == 'u' ||
                (*(psz_text + 1 ) ) == 'D' || (*(psz_text + 1 ) ) == 'N' )
            {
                psz_text++;
                break;
            }
            if( (*(psz_text + 1 ) ) == '~' || (*(psz_text + 1 ) ) == '{' ||
                (*(psz_text + 1 ) ) == '\\' )
                psz_text++;
            else if( *(psz_text + 1 ) == '\r' ||  *(psz_text + 1 ) == '\n' ||
                     *(psz_text + 1 ) == '\0' )
            {
				psz_text++;
            }
            break;
        default:
            if( !p_sys->jss.i_comment )
            {
                *psz_text2 = *psz_text;
                psz_text2++;
            }
        }
        psz_text++;
    }

    p_subtitle->psz_text = psz_orig2;
    msg_Dbg( p_demux, "%s", p_subtitle->psz_text );
    free( psz_orig );
    return VLC_SUCCESS;
}

static int ParsePSB( demux_t *p_demux, subtitle_t *p_subtitle, int i_idx )
{
    VLC_UNUSED( i_idx );

    demux_sys_t *p_sys = p_demux->p_sys;
    text_t      *txt = &p_sys->txt;
    char *psz_text;
    int i;

    for( ;; )
    {
        int h1, m1, s1;
        int h2, m2, s2;
        const char *s = TextGetLine( txt );

        if( !s )
            return VLC_EGENERIC;

        psz_text = malloc( strlen( s ) + 1 );
        if( !psz_text )
            return VLC_ENOMEM;

        if( sscanf( s, "{%d:%d:%d}{%d:%d:%d}%[^\r\n]",
                    &h1, &m1, &s1, &h2, &m2, &s2, psz_text ) == 7 )
        {
            p_subtitle->i_start = ( (int64_t)h1 * 3600*1000 +
                                    (int64_t)m1 * 60*1000 +
                                    (int64_t)s1 * 1000 ) * 1000;
            p_subtitle->i_stop  = ( (int64_t)h2 * 3600*1000 +
                                    (int64_t)m2 * 60*1000 +
                                    (int64_t)s2 * 1000 ) * 1000;
            break;
        }
        free( psz_text );
    }

    /* replace | by \n */
    for( i = 0; psz_text[i] != '\0'; i++ )
    {
        if( psz_text[i] == '|' )
            psz_text[i] = '\n';
    }
    p_subtitle->psz_text = psz_text;
    return VLC_SUCCESS;
}

static int64_t ParseRealTime( char *psz, int *h, int *m, int *s, int *f )
{
    if( strlen( psz ) == 0 ) return 0;
    if( sscanf( psz, "%d:%d:%d.%d", h, m, s, f ) == 4 ||
            sscanf( psz, "%d:%d.%d", m, s, f ) == 3 ||
            sscanf( psz, "%d.%d", s, f ) == 2 ||
            sscanf( psz, "%d:%d", m, s ) == 2 ||
            sscanf( psz, "%d", s ) == 1 )
    {
        return (int64_t)((( *h * 60 + *m ) * 60 ) + *s ) * 1000 * 1000
               + (int64_t)*f * 10 * 1000;
    }
    else return VLC_EGENERIC;
}

static int ParseRealText( demux_t *p_demux, subtitle_t *p_subtitle, int i_idx )
{
    VLC_UNUSED( i_idx );
    demux_sys_t *p_sys = p_demux->p_sys;
    text_t      *txt = &p_sys->txt;
    char *psz_text;
    char psz_end[12]= "", psz_begin[12] = "";

    for( ;; )
    {
        int h1 = 0, m1 = 0, s1 = 0, f1 = 0;
        int h2 = 0, m2 = 0, s2 = 0, f2 = 0;
        const char *s = TextGetLine( txt );

        if( !s )
            return VLC_EGENERIC;

        psz_text = malloc( strlen( s ) + 1 );
        if( !psz_text )
            return VLC_ENOMEM;

        /* Find the good begining. This removes extra spaces at the beginning
           of the line.*/
        char *psz_temp = strcasestr( s, "<time");
        if( psz_temp != NULL )
        {
            /* Line has begin and end */
            if( ( sscanf( psz_temp,
                  "<%*[t|T]ime %*[b|B]egin=\"%[^\"]\" %*[e|E]nd=\"%[^\"]%*[^>]%[^\n\r]",
                            psz_begin, psz_end, psz_text) != 3 ) &&
                    /* Line has begin and no end */
                    ( sscanf( psz_temp,
                              "<%*[t|T]ime %*[b|B]egin=\"%[^\"]\"%*[^>]%[^\n\r]",
                              psz_begin, psz_text ) != 2) )
                /* Line is not recognized */
            {
                free( psz_text );
                continue;
            }

            /* Get the times */
            int64_t i_time = ParseRealTime( psz_begin, &h1, &m1, &s1, &f1 );
            if( i_time >= 0)
            {
                p_subtitle->i_start = i_time;
            }

            i_time = ParseRealTime( psz_end, &h2, &m2, &s2, &f2 );
            if( i_time >= 0 )
            {
                p_subtitle->i_stop = i_time;
            }
            break;
        }
        /* Line is not recognized */
        else continue;
        free( psz_text );
    }

    /* Get the following Lines */
    for( ;; )
    {
        const char *s = TextGetLine( txt );

        if( !s )
            return VLC_EGENERIC;

        int i_len = strlen( s );
        if( i_len == 0 ) break;

        if( strcasestr( s, "<time" ) ||
            strcasestr( s, "<clear/") )
        {
            TextPreviousLine( txt );
            break;
        }

        int i_old = strlen( psz_text );

        psz_text = realloc( psz_text, i_old + i_len + 1 + 1 );
        if( !psz_text )
            return VLC_ENOMEM;

        strcat( psz_text, s );
        strcat( psz_text, "\n" );
    }

    /* Remove the starting ">" that remained after the sscanf */
    memmove( &psz_text[0], &psz_text[1], strlen( psz_text ) );

    p_subtitle->psz_text = psz_text;

    return VLC_SUCCESS;
}

static int ParseDKS( demux_t *p_demux, subtitle_t *p_subtitle, int i_idx )
{
    VLC_UNUSED( i_idx );

    demux_sys_t *p_sys = p_demux->p_sys;
    text_t      *txt = &p_sys->txt;
    char *psz_text;

    for( ;; )
    {
        int h1, m1, s1;
        int h2, m2, s2;
        char *s = TextGetLine( txt );

        if( !s )
            return VLC_EGENERIC;

        psz_text = malloc( strlen( s ) + 1 );
        if( !psz_text )
            return VLC_ENOMEM;

        if( sscanf( s, "[%d:%d:%d]%[^\r\n]",
                    &h1, &m1, &s1, psz_text ) == 4 )
        {
            p_subtitle->i_start = ( (int64_t)h1 * 3600*1000 +
                                    (int64_t)m1 * 60*1000 +
                                    (int64_t)s1 * 1000 ) * 1000;

            char *s = TextGetLine( txt );
            if( !s )
                return VLC_EGENERIC;

            if( sscanf( s, "[%d:%d:%d]", &h2, &m2, &s2 ) == 3 )
                p_subtitle->i_stop  = ( (int64_t)h2 * 3600*1000 +
                                        (int64_t)m2 * 60*1000 +
                                        (int64_t)s2 * 1000 ) * 1000;
            break;
        }
        free( psz_text );
    }

    /* replace [br] by \n */
    char *p;
    while( ( p = strstr( psz_text, "[br]" ) ) )
    {
        *p++ = '\n';
        memmove( p, &p[3], strlen(&p[3])+1 );
    }

    p_subtitle->psz_text = psz_text;
    return VLC_SUCCESS;
}

static int ParseSubViewer1( demux_t *p_demux, subtitle_t *p_subtitle, int i_idx )
{
    VLC_UNUSED( i_idx );

    demux_sys_t *p_sys = p_demux->p_sys;
    text_t      *txt = &p_sys->txt;
    char *psz_text;

    for( ;; )
    {
        int h1, m1, s1;
        int h2, m2, s2;
        char *s = TextGetLine( txt );

        if( !s )
            return VLC_EGENERIC;

        if( sscanf( s, "[%d:%d:%d]", &h1, &m1, &s1 ) == 3 )
        {
            p_subtitle->i_start = ( (int64_t)h1 * 3600*1000 +
                                    (int64_t)m1 * 60*1000 +
                                    (int64_t)s1 * 1000 ) * 1000;

            char *s = TextGetLine( txt );
            if( !s )
                return VLC_EGENERIC;

            psz_text = strdup( s );
            if( !psz_text )
                return VLC_ENOMEM;

            s = TextGetLine( txt );
            if( !s )
                return VLC_EGENERIC;

            if( sscanf( s, "[%d:%d:%d]", &h2, &m2, &s2 ) == 3 )
                p_subtitle->i_stop  = ( (int64_t)h2 * 3600*1000 +
                                        (int64_t)m2 * 60*1000 +
                                        (int64_t)s2 * 1000 ) * 1000;
            break;
        }
    }

    p_subtitle->psz_text = psz_text;

    return VLC_SUCCESS;
}