示例#1
0
文件: subsdec.c 项目: qdk0901/vlc
static text_style_t* DuplicateAndPushStyle(style_stack_t** pp_stack)
{
    text_style_t* p_dup = ( *pp_stack ) ? text_style_Duplicate( (*pp_stack)->p_style ) : text_style_Create( STYLE_NO_DEFAULTS );
    if ( unlikely( !p_dup ) )
        return NULL;
    style_stack_t* p_entry = malloc( sizeof( *p_entry ) );
    if ( unlikely( !p_entry ) )
    {
        free( p_dup );
        return NULL;
    }
    // Give the style ownership to the segment.
    p_entry->p_style = p_dup;
    p_entry->p_next = *pp_stack;
    *pp_stack = p_entry;
    return p_dup;
}
示例#2
0
文件: substx3g.c 项目: etix/vlc
static bool SegmentSplit( tx3g_segment_t *p_prev, tx3g_segment_t **pp_segment,
                          const uint16_t i_start, const uint16_t i_end,
                          const text_style_t *p_styles )
{
    tx3g_segment_t *p_segment_left = NULL, *p_segment_middle = NULL, *p_segment_right = NULL;

    if ( (*pp_segment)->i_size == 0 ) return false;
    if ( i_start > i_end ) return false;
    if ( (size_t)(i_end - i_start) > (*pp_segment)->i_size - 1 ) return false;
    if ( i_end > (*pp_segment)->i_size - 1 ) return false;

    SegmentDoSplit( *pp_segment, i_start, i_end, &p_segment_left, &p_segment_middle, &p_segment_right );
    if ( !p_segment_middle )
    {
        /* Failed */
        text_segment_Delete( p_segment_left->s );
        free( p_segment_left );
        text_segment_Delete( p_segment_right->s );
        free( p_segment_right );
        return false;
    }

    tx3g_segment_t *p_next3g = (*pp_segment)->p_next3g;
    text_segment_Delete( (*pp_segment)->s );
    free( *pp_segment );
    *pp_segment = ( p_segment_left ) ? p_segment_left : p_segment_middle ;
    if ( p_prev ) p_prev->p_next3g = *pp_segment;

    if ( p_segment_right )
        p_segment_right->p_next3g = p_next3g;
    else
        p_segment_middle->p_next3g = p_next3g;

    text_style_Delete( p_segment_middle->s->style );
    p_segment_middle->s->style = text_style_Duplicate( p_styles );

    return true;
}
示例#3
0
text_segment_t *text_segment_Copy( text_segment_t *p_src )
{
    text_segment_t *p_dst = NULL, *p_dst0 = NULL;

    while( p_src ) {
        text_segment_t *p_new = text_segment_New( p_src->psz_text );
        if( p_new )
            p_new->style = text_style_Duplicate( p_src->style );

        if( p_dst == NULL )
        {
            p_dst = p_dst0 = p_new;
        }
        else
        {
            p_dst->p_next = p_new;
            p_dst = p_dst->p_next;
        }

        p_src = p_src->p_next;
    }

    return p_dst0;
}
示例#4
0
文件: marq.c 项目: FLYKingdom/vlc
/****************************************************************************
 * Filter: the whole thing
 ****************************************************************************
 * This function outputs subpictures at regular time intervals.
 ****************************************************************************/
static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
{
    filter_sys_t *p_sys = p_filter->p_sys;
    subpicture_t *p_spu = NULL;
    video_format_t fmt;

    vlc_mutex_lock( &p_sys->lock );
    if( p_sys->last_time + p_sys->i_refresh > date )
        goto out;
    if( p_sys->b_need_update == false )
        goto out;

    p_spu = filter_NewSubpicture( p_filter );
    if( !p_spu )
        goto out;

    memset( &fmt, 0, sizeof(video_format_t) );
    fmt.i_chroma = VLC_CODEC_TEXT;
    fmt.i_aspect = 0;
    fmt.i_width = fmt.i_height = 0;
    fmt.i_x_offset = 0;
    fmt.i_y_offset = 0;
    p_spu->p_region = subpicture_region_New( &fmt );
    if( !p_spu->p_region )
    {
        p_filter->pf_sub_buffer_del( p_filter, p_spu );
        p_spu = NULL;
        goto out;
    }

    p_sys->last_time = date;

    if( !strchr( p_sys->psz_marquee, '%' )
     && !strchr( p_sys->psz_marquee, '$' ) )
        p_sys->b_need_update = false;

    p_spu->p_region->psz_text = str_format( p_filter, p_sys->psz_marquee );
    p_spu->i_start = date;
    p_spu->i_stop  = p_sys->i_timeout == 0 ? 0 : date + p_sys->i_timeout * 1000;
    p_spu->b_ephemer = true;

    /*  where to locate the string: */
    if( p_sys->i_pos < 0 )
    {   /*  set to an absolute xy */
        p_spu->p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
        p_spu->b_absolute = true;
    }
    else
    {   /* set to one of the 9 relative locations */
        p_spu->p_region->i_align = p_sys->i_pos;
        p_spu->b_absolute = false;
    }

    p_spu->p_region->i_x = p_sys->i_xoff;
    p_spu->p_region->i_y = p_sys->i_yoff;

    p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );

out:
    vlc_mutex_unlock( &p_sys->lock );
    return p_spu;
}
示例#5
0
/****************************************************************************
 * Filter: the whole thing
 ****************************************************************************
 * This function outputs subpictures at regular time intervals.
 ****************************************************************************/
static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
{
    filter_sys_t *p_sys = p_filter->p_sys;
    subpicture_t *p_spu;
    video_format_t fmt;
    subpicture_region_t *p_region;

    int i_feed, i_item;
    rss_feed_t *p_feed;

    memset( &fmt, 0, sizeof(video_format_t) );

    vlc_mutex_lock( &p_sys->lock );

    /* Check if the feeds have been fetched and that we have some feeds */
    /* TODO: check that we have items for each feeds */
    if( !p_sys->b_fetched && p_sys->i_feeds > 0 )
    {
        vlc_mutex_unlock( &p_sys->lock );
        return NULL;
    }

    if( p_sys->last_date
       + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == ( p_sys->i_title == scroll_title ? -1 : 0 ) ? 5 : 1 )
           /* ( ... ? 5 : 1 ) means "wait 5 times more for the 1st char" */
       * p_sys->i_speed > date )
    {
        vlc_mutex_unlock( &p_sys->lock );
        return NULL;
    }

    p_sys->last_date = date;
    p_sys->i_cur_char++;
    if( p_sys->i_cur_item == -1 ? p_sys->p_feeds[p_sys->i_cur_feed].psz_title[p_sys->i_cur_char] == 0 : p_sys->p_feeds[p_sys->i_cur_feed].p_items[p_sys->i_cur_item].psz_title[p_sys->i_cur_char] == 0 )
    {
        p_sys->i_cur_char = 0;
        p_sys->i_cur_item++;
        if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
        {
            if( p_sys->i_title == scroll_title )
                p_sys->i_cur_item = -1;
            else
                p_sys->i_cur_item = 0;
            p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
        }
    }

    p_spu = filter_NewSubpicture( p_filter );
    if( !p_spu )
    {
        vlc_mutex_unlock( &p_sys->lock );
        return NULL;
    }

    fmt.i_chroma = VLC_CODEC_TEXT;

    p_spu->p_region = subpicture_region_New( &fmt );
    if( !p_spu->p_region )
    {
        p_filter->pf_sub_buffer_del( p_filter, p_spu );
        vlc_mutex_unlock( &p_sys->lock );
        return NULL;
    }

    /* Generate the string that will be displayed. This string is supposed to
       be p_sys->i_length characters long. */
    i_item = p_sys->i_cur_item;
    i_feed = p_sys->i_cur_feed;
    p_feed = &p_sys->p_feeds[i_feed];

    if( ( p_feed->p_pic && p_sys->i_title == default_title )
        || p_sys->i_title == hide_title )
    {
        /* Don't display the feed's title if we have an image */
        _snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
                  p_sys->p_feeds[i_feed].p_items[i_item].psz_title
                  +p_sys->i_cur_char );			// sunqueen modify
    }
    else if( ( !p_feed->p_pic && p_sys->i_title == default_title )
             || p_sys->i_title == prepend_title )
    {
        _snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
                  p_sys->p_feeds[i_feed].psz_title,
                  p_sys->p_feeds[i_feed].p_items[i_item].psz_title
                  +p_sys->i_cur_char );			// sunqueen modify
    }
    else /* scrolling title */
    {
        if( i_item == -1 )
            _snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
                      p_sys->p_feeds[i_feed].psz_title + p_sys->i_cur_char,
                      p_sys->p_feeds[i_feed].p_items[i_item+1].psz_title );			// sunqueen modify
        else
            _snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
                      p_sys->p_feeds[i_feed].p_items[i_item].psz_title
                      +p_sys->i_cur_char );			// sunqueen modify
    }

    while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
    {
        i_item++;
        if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
        _snprintf( strchr( p_sys->psz_marquee, 0 ),
                  p_sys->i_length - strlen( p_sys->psz_marquee ),
                  " - %s",
                  p_sys->p_feeds[i_feed].p_items[i_item].psz_title );			// sunqueen modify
    }

    /* Calls to snprintf might split multibyte UTF8 chars ...
     * which freetype doesn't like. */
    {
        char *a = strdup( p_sys->psz_marquee );
        char *a2 = a;
        char *b = p_sys->psz_marquee;
        EnsureUTF8( p_sys->psz_marquee );
        /* we want to use ' ' instead of '?' for erroneous chars */
        while( *b != '\0' )
        {
            if( *b != *a ) *b = ' ';
            b++;a++;
        }
        free( a2 );
    }

    p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
    if( p_sys->p_style->i_font_size > 0 )
        p_spu->p_region->fmt.i_visible_height = p_sys->p_style->i_font_size;
    p_spu->i_start = date;
    p_spu->i_stop  = 0;
    p_spu->b_ephemer = true;

    /*  where to locate the string: */
    if( p_sys->i_pos < 0 )
    {   /*  set to an absolute xy */
        p_spu->p_region->i_align = SUBPICTURE_ALIGN_LEFT | SUBPICTURE_ALIGN_TOP;
        p_spu->b_absolute = true;
    }
    else
    {   /* set to one of the 9 relative locations */
        p_spu->p_region->i_align = p_sys->i_pos;
        p_spu->b_absolute = false;
    }
    p_spu->p_region->i_x = p_sys->i_xoff;
    p_spu->p_region->i_y = p_sys->i_yoff;

    p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );

    if( p_feed->p_pic )
    {
        /* Display the feed's image */
        picture_t *p_pic = p_feed->p_pic;
        video_format_t fmt_out;

        memset( &fmt_out, 0, sizeof(video_format_t) );

        fmt_out.i_chroma = VLC_CODEC_YUVA;
        fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
        fmt_out.i_width =
            fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
        fmt_out.i_height =
            fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;

        p_region = subpicture_region_New( &fmt_out );
        if( !p_region )
        {
            msg_Err( p_filter, "cannot allocate SPU region" );
        }
        else
        {
            p_region->i_x = p_spu->p_region->i_x;
            p_region->i_y = p_spu->p_region->i_y;
            /* FIXME the copy is probably not needed anymore */
            picture_Copy( p_region->p_picture, p_pic );
            p_spu->p_region->p_next = p_region;

            /* Offset text to display right next to the image */
            p_spu->p_region->i_x += fmt_out.i_visible_width;
        }
    }

    vlc_mutex_unlock( &p_sys->lock );
    return p_spu;
}
示例#6
0
/*****************************************************************************
 * Render: displays previously rendered output
 *****************************************************************************
 * This function send the currently rendered image to adjust modified image,
 * waits until it is displayed and switch the two rendering buffers, preparing
 * next frame.
 *****************************************************************************/
static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
{
    filter_sys_t *p_sys = p_filter->p_sys;

    /* We might need to open these at any time. */
    vlc_mutex_lock( &p_sys->lock );
    if( p_sys->i_inputfd == -1 )
    {
        p_sys->i_inputfd = vlc_open( p_sys->psz_inputfile, O_RDONLY | O_NONBLOCK );
        if( p_sys->i_inputfd == -1 )
        {
            msg_Warn( p_filter, "Failed to grab input file: %s (%m)",
                      p_sys->psz_inputfile );
        }
        else
        {
            msg_Info( p_filter, "Grabbed input file: %s",
                      p_sys->psz_inputfile );
        }
    }

    if( p_sys->i_outputfd == -1 )
    {
        p_sys->i_outputfd = vlc_open( p_sys->psz_outputfile,
                                  O_WRONLY | O_NONBLOCK );
        if( p_sys->i_outputfd == -1 )
        {
            if( errno != ENXIO )
            {
                msg_Warn( p_filter, "Failed to grab output file: %s (%m)",
                          p_sys->psz_outputfile );
            }
        }
        else
        {
            msg_Info( p_filter, "Grabbed output file: %s",
                      p_sys->psz_outputfile );
        }
    }
    vlc_mutex_unlock( &p_sys->lock );

    /* Read any waiting commands */
    if( p_sys->i_inputfd != -1 )
    {
        char p_buffer[1024];
        ssize_t i_len = read( p_sys->i_inputfd, p_buffer, 1024 );
        if( i_len == -1 )
        {
            /* We hit an error */
            if( errno != EAGAIN )
            {
                msg_Warn( p_filter, "Error on input file: %m" );
                close( p_sys->i_inputfd );
                p_sys->i_inputfd = -1;
            }
        }
        else if( i_len == 0 )
        {
            /* We hit the end-of-file */
        }
        else
        {
            BufferAdd( &p_sys->input, p_buffer, i_len );
        }
    }

    /* Parse any complete commands */
    char *p_end, *p_cmd;
    while( ( p_end = memchr( p_sys->input.p_begin, '\n',
                             p_sys->input.i_length ) ) )
    {
        commanddesc_t *p_cur = NULL;
        bool b_found = false;
        size_t i_index = 0;

        *p_end = '\0';
        p_cmd = BufferGetToken( &p_sys->input );

        msg_Info( p_filter, "Search command: %s", p_cmd );
        for( i_index = 0; i_index < p_sys->i_commands; i_index++ )
        {
            p_cur = p_sys->pp_commands[i_index];
            if( !strncmp( p_cur->psz_command, p_cmd, strlen(p_cur->psz_command) ) )
            {
                p_cmd[strlen(p_cur->psz_command)] = '\0';
                b_found = true;
                break;
            }
        }

        if( !b_found )
        {
            /* No matching command */
            msg_Err( p_filter, "Got invalid command: %s", p_cmd );
            BufferPrintf( &p_sys->output, "FAILURE: %d Invalid Command\n", VLC_EGENERIC );
        }
        else
        {
            msg_Info( p_filter, "Got valid command: %s", p_cmd );

            command_t *p_cmddesc = malloc( sizeof( command_t ) );
            if( !p_cmddesc )
                return NULL;

            p_cmd = p_cmd + strlen(p_cur->psz_command) +1;
            p_cmddesc->p_command = p_cur;
            p_cmddesc->p_command->pf_parser( p_cmd, p_end,
                                             &p_cmddesc->params );

            if( p_cmddesc->p_command->b_atomic && p_sys->b_atomic )
                QueueEnqueue( &p_sys->atomic, p_cmddesc );
            else
                QueueEnqueue( &p_sys->pending, p_cmddesc );
        }

        BufferDel( &p_sys->input, p_end - p_sys->input.p_begin + 1 );
    }

    /* Process any pending commands */
    command_t *p_command = NULL;
    while( (p_command = QueueDequeue( &p_sys->pending )) )
    {
        p_command->i_status =
            p_command->p_command->pf_execute( p_filter, &p_command->params,
                                              &p_command->results );
        QueueEnqueue( &p_sys->processed, p_command );
    }

    /* Output any processed commands */
    while( (p_command = QueueDequeue( &p_sys->processed )) )
    {
        if( p_command->i_status == VLC_SUCCESS )
        {
            const char *psz_success = "SUCCESS:";
            const char *psz_nl = "\n";
            BufferAdd( &p_sys->output, psz_success, 8 );
            p_command->p_command->pf_unparse( &p_command->results,
                                              &p_sys->output );
            BufferAdd( &p_sys->output, psz_nl, 1 );
        }
        else
        {
            BufferPrintf( &p_sys->output, "FAILURE: %d\n",
                          p_command->i_status );
        }
    }

    /* Try emptying the output buffer */
    if( p_sys->i_outputfd != -1 )
    {
        ssize_t i_len = write( p_sys->i_outputfd, p_sys->output.p_begin,
                              p_sys->output.i_length );
        if( i_len == -1 )
        {
            /* We hit an error */
            if( errno != EAGAIN )
            {
                msg_Warn( p_filter, "Error on output file: %m" );
                close( p_sys->i_outputfd );
                p_sys->i_outputfd = -1;
            }
        }
        else
        {
            BufferDel( &p_sys->output, i_len );
        }
    }

    if( !p_sys->b_updated )
        return NULL;

    subpicture_t *p_spu = NULL;
    overlay_t *p_overlay = NULL;

    p_spu = p_filter->pf_sub_buffer_new( p_filter );
    if( !p_spu )
    {
        msg_Err( p_filter, "cannot allocate subpicture" );
        return NULL;
    }

    p_spu->b_absolute = true;
    p_spu->i_start = date;
    p_spu->i_stop = 0;
    p_spu->b_ephemer = true;

    subpicture_region_t **pp_region = &p_spu->p_region;
    while( (p_overlay = ListWalk( &p_sys->overlays )) )
    {
        subpicture_region_t *p_region;

        *pp_region = p_region = subpicture_region_New( &p_overlay->format );
        if( !p_region )
            break;

        msg_Dbg( p_filter, "Displaying overlay: %4.4s, %d, %d, %d",
                 (char*)&p_overlay->format.i_chroma, p_overlay->i_x, p_overlay->i_y,
                 p_overlay->i_alpha );

        if( p_overlay->format.i_chroma == VLC_CODEC_TEXT )
        {
            p_region->psz_text = strdup( p_overlay->data.p_text );
            p_region->p_style = text_style_Duplicate( p_overlay->p_fontstyle );
        }
        else
        {
            /* FIXME the copy is probably not needed anymore */
            picture_Copy( p_region->p_picture, p_overlay->data.p_pic );
        }
        p_region->i_x = p_overlay->i_x;
        p_region->i_y = p_overlay->i_y;
        p_region->i_align = SUBPICTURE_ALIGN_LEFT | SUBPICTURE_ALIGN_TOP;
        p_region->i_alpha = p_overlay->i_alpha;
        pp_region = &p_region->p_next;
    }

    p_sys->b_updated = false;
    return p_spu;
}
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;
}
示例#8
0
/****************************************************************************
 * Filter: the whole thing
 ****************************************************************************
 * This function outputs subpictures at regular time intervals.
 ****************************************************************************/
static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
{
    filter_sys_t *p_sys = p_filter->p_sys;
    subpicture_t *p_spu = NULL;
    video_format_t fmt;

    vlc_mutex_lock( &p_sys->lock );
    if( p_sys->last_time + p_sys->i_refresh > date )
        goto out;

    if( p_sys->filepath != NULL )
    {
        char *fmt = MarqueeReadFile( p_filter, p_sys->filepath );
        if( fmt != NULL )
        {
            free( p_sys->format );
            p_sys->format = fmt;
        }
    }

    char *msg = str_format_time( p_sys->format ? p_sys->format : "" );
    if( unlikely( msg == NULL ) )
        goto out;
    if( p_sys->message != NULL && !strcmp( msg, p_sys->message ) )
    {
        free( msg );
        goto out;
    }
    free( p_sys->message );
    p_sys->message = msg;

    p_spu = filter_NewSubpicture( p_filter );
    if( !p_spu )
        goto out;

    memset( &fmt, 0, sizeof(video_format_t) );
    fmt.i_chroma = VLC_CODEC_TEXT;
    fmt.i_width = fmt.i_height = 0;
    fmt.i_x_offset = 0;
    fmt.i_y_offset = 0;
    p_spu->p_region = subpicture_region_New( &fmt );
    if( !p_spu->p_region )
    {
        p_filter->pf_sub_buffer_del( p_filter, p_spu );
        p_spu = NULL;
        goto out;
    }

    p_sys->last_time = date;

    p_spu->p_region->psz_text = strdup( msg );
    p_spu->i_start = date;
    p_spu->i_stop  = p_sys->i_timeout == 0 ? 0 : date + p_sys->i_timeout * 1000;
    p_spu->b_ephemer = true;

    /*  where to locate the string: */
    if( p_sys->i_pos < 0 )
    {   /*  set to an absolute xy */
        p_spu->p_region->i_align = SUBPICTURE_ALIGN_LEFT | SUBPICTURE_ALIGN_TOP;
        p_spu->b_absolute = true;
    }
    else
    {   /* set to one of the 9 relative locations */
        p_spu->p_region->i_align = p_sys->i_pos;
        p_spu->b_absolute = false;
    }

    p_spu->p_region->i_x = p_sys->i_xoff;
    p_spu->p_region->i_y = p_sys->i_yoff;

    p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );

out:
    vlc_mutex_unlock( &p_sys->lock );
    return p_spu;
}
示例#9
0
static text_style_t* CurrentStyle( style_stack_t* p_stack )
{
    if ( p_stack == NULL )
        return text_style_Create( STYLE_NO_DEFAULTS );
    return text_style_Duplicate( p_stack->p_style->font_style );
}
示例#10
0
文件: substx3g.c 项目: etix/vlc
/*****************************************************************************
 * Decode:
 *****************************************************************************/
static int Decode( decoder_t *p_dec, block_t *p_block )
{
    subpicture_t  *p_spu = NULL;

    if( p_block == NULL ) /* No Drain */
        return VLCDEC_SUCCESS;

    if( ( p_block->i_flags & (BLOCK_FLAG_CORRUPTED) ) ||
          p_block->i_buffer < sizeof(uint16_t) )
    {
        block_Release( p_block );
        return VLCDEC_SUCCESS;
    }

    uint8_t *p_buf = p_block->p_buffer;

    /* Read our raw string and create the styled segment for HTML */
    uint16_t i_psz_bytelength = GetWBE( p_buf );
    const uint8_t *p_pszstart = p_block->p_buffer + sizeof(uint16_t);
    char *psz_subtitle;
    if ( i_psz_bytelength > 2 &&
         ( !memcmp( p_pszstart, "\xFE\xFF", 2 ) || !memcmp( p_pszstart, "\xFF\xFE", 2 ) )
       )
    {
        psz_subtitle = FromCharset( "UTF-16", p_pszstart, i_psz_bytelength );
        if ( !psz_subtitle )
            return VLCDEC_SUCCESS;
    }
    else
    {
        psz_subtitle = malloc( i_psz_bytelength + 1 );
        if ( !psz_subtitle )
            return VLCDEC_SUCCESS;
        memcpy( psz_subtitle, p_pszstart, i_psz_bytelength );
        psz_subtitle[ i_psz_bytelength ] = '\0';
    }
    p_buf += i_psz_bytelength + sizeof(uint16_t);

    for( uint16_t i=0; i < i_psz_bytelength; i++ )
     if ( psz_subtitle[i] == '\r' ) psz_subtitle[i] = '\n';

    tx3g_segment_t *p_segment3g = tx3g_segment_New( psz_subtitle );
    p_segment3g->i_size = str8len( psz_subtitle );
    if ( p_dec->fmt_in.subs.p_style )
        p_segment3g->s->style = text_style_Duplicate( p_dec->fmt_in.subs.p_style );

    free( psz_subtitle );

    if ( !p_segment3g->s->psz_text )
    {
        text_segment_Delete( p_segment3g->s );
        free( p_segment3g );
        return VLCDEC_SUCCESS;
    }

    /* Create the subpicture unit */
    p_spu = decoder_NewSubpictureText( p_dec );
    if( !p_spu )
    {
        text_segment_Delete( p_segment3g->s );
        free( p_segment3g );
        return VLCDEC_SUCCESS;
    }
    subpicture_updater_sys_t *p_spu_sys = p_spu->updater.p_sys;

    /* Parse our styles */
    while( (size_t)(p_buf - p_block->p_buffer) + 8 < p_block->i_buffer )
    {
        uint32_t i_atomsize = GetDWBE( p_buf );
        vlc_fourcc_t i_atomtype = VLC_FOURCC(p_buf[4],p_buf[5],p_buf[6],p_buf[7]);
        p_buf += 8;
        switch( i_atomtype )
        {

        case VLC_FOURCC('s','t','y','l'):
        {
            if ( (size_t)(p_buf - p_block->p_buffer) < 14 ) break;
            uint16_t i_nbrecords = GetWBE(p_buf);
            uint16_t i_cur_record = 0;
            p_buf += 2;
            while( i_cur_record++ < i_nbrecords )
            {
                if ( (size_t)(p_buf - p_block->p_buffer) < 12 ) break;
                uint16_t i_start = __MIN( GetWBE(p_buf), i_psz_bytelength - 1 );
                uint16_t i_end =  __MIN( GetWBE(p_buf + 2), i_psz_bytelength - 1 );

                text_style_t style;
                memset( &style, 0, sizeof(text_style_t) );
                style.i_style_flags = ConvertFlags( p_buf[6] );
                style.i_font_size = p_buf[7];
                style.i_font_color = GetDWBE(p_buf+8) >> 8;// RGBA -> RGB
                style.i_font_alpha = GetDWBE(p_buf+8) & 0xFF;
                style.i_features = STYLE_HAS_FONT_COLOR | STYLE_HAS_FONT_ALPHA;
                ApplySegmentStyle( &p_segment3g, i_start, i_end, &style );

                if ( i_nbrecords == 1 )
                {
                    if ( p_buf[6] )
                    {
                        if( (p_spu_sys->p_default_style->i_style_flags = ConvertFlags( p_buf[6] )) )
                            p_spu_sys->p_default_style->i_features |= STYLE_HAS_FLAGS;
                    }
                    p_spu_sys->p_default_style->i_font_size = p_buf[7];
                    p_spu_sys->p_default_style->i_font_color = GetDWBE(p_buf+8) >> 8;// RGBA -> ARGB
                    p_spu_sys->p_default_style->i_font_alpha = (GetDWBE(p_buf+8) & 0xFF) << 24;
                    p_spu_sys->p_default_style->i_features |= (STYLE_HAS_FONT_COLOR | STYLE_HAS_FONT_ALPHA);
                }

                p_buf += 12;
            }
        }   break;

        case VLC_FOURCC('d','r','p','o'):
            if ( (size_t)(p_buf - p_block->p_buffer) < 4 ) break;
            p_spu_sys->p_default_style->i_shadow_width = __MAX( GetWBE(p_buf), GetWBE(p_buf+2) );
            break;

        case VLC_FOURCC('d','r','p','t'):
            if ( (size_t)(p_buf - p_block->p_buffer) < 2 ) break;
            p_spu_sys->p_default_style->i_shadow_alpha = GetWBE(p_buf);
            p_spu_sys->p_default_style->i_features |= STYLE_HAS_SHADOW_ALPHA;
            break;

        default:
            break;

        }
        p_buf += i_atomsize;
    }

    p_spu->i_start    = p_block->i_pts;
    p_spu->i_stop     = p_block->i_pts + p_block->i_length;
    p_spu->b_ephemer  = (p_block->i_length == 0);
    p_spu->b_absolute = false;

    p_spu_sys->region.inner_align = SUBPICTURE_ALIGN_BOTTOM;

    FontSizeConvert( p_dec->fmt_in.subs.p_style,  p_spu_sys->p_default_style );

    /* Unwrap */
    text_segment_t *p_text_segments = p_segment3g->s;
    text_segment_t *p_cur = p_text_segments;
    while( p_segment3g )
    {
        FontSizeConvert( p_dec->fmt_in.subs.p_style, p_segment3g->s->style );

        tx3g_segment_t * p_old = p_segment3g;
        p_segment3g = p_segment3g->p_next3g;
        free( p_old );
        if( p_segment3g )
            p_cur->p_next = p_segment3g->s;
        p_cur = p_cur->p_next;
    }

    p_spu_sys->region.p_segments = p_text_segments;

    block_Release( p_block );

    decoder_QueueSub( p_dec, p_spu );
    return VLCDEC_SUCCESS;
}