示例#1
0
文件: subpicture.c 项目: CityFire/vlc
void subpicture_region_ChainDelete( subpicture_region_t *p_head )
{
    while( p_head )
    {
        subpicture_region_t *p_next = p_head->p_next;

        subpicture_region_Delete( p_head );

        p_head = p_next;
    }
}
static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
                                              char *psz_subtitle,
                                              int i_len,
                                              int i_sys_align )
{
    decoder_sys_t        *p_sys = p_dec->p_sys;
    subpicture_region_t  *p_text_region;
    video_format_t        fmt;

    /* Create a new subpicture region */
    memset( &fmt, 0, sizeof(video_format_t) );
    fmt.i_chroma = VLC_CODEC_TEXT;
    fmt.i_width = fmt.i_height = 0;
    fmt.i_x_offset = fmt.i_y_offset = 0;
    p_text_region = subpicture_region_New( &fmt );

    if( p_text_region != NULL )
    {
        ssa_style_t  *p_ssa_style = NULL;

        p_text_region->psz_text = NULL;
        p_text_region->psz_html = strndup( psz_subtitle, i_len );
        if( ! p_text_region->psz_html )
        {
            subpicture_region_Delete( p_text_region );
            return NULL;
        }

        p_ssa_style = ParseStyle( p_sys, p_text_region->psz_html );
        if( !p_ssa_style )
        {
            int i;

            for( i = 0; i < p_sys->i_ssa_styles; i++ )
            {
                if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
                    p_ssa_style = p_sys->pp_ssa_styles[i];
            }
        }

        if( p_ssa_style )
        {
            msg_Dbg( p_dec, "style is: %s", p_ssa_style->psz_stylename );

            p_text_region->p_style = text_style_Duplicate( &p_ssa_style->font_style );
            p_text_region->i_align = p_ssa_style->i_align;

            /* TODO: Setup % based offsets properly, without adversely affecting
             *       everything else in vlc. Will address with separate patch,
             *       to prevent this one being any more complicated.

                     * p_ssa_style->i_margin_percent_h;
                     * p_ssa_style->i_margin_percent_v;
             */
            p_text_region->i_x         = p_ssa_style->i_margin_h;
            p_text_region->i_y         = p_ssa_style->i_margin_v;

        }
        else
        {
            p_text_region->i_align = SUBPICTURE_ALIGN_BOTTOM | i_sys_align;
            p_text_region->i_x = i_sys_align ? 20 : 0;
            p_text_region->i_y = 10;
        }
        /* Look for position arguments which may override the style-based
         * defaults.
         */
        SetupPositions( p_text_region, psz_subtitle );

        p_text_region->p_next = NULL;
    }
    return p_text_region;
}