void subpicture_region_Delete( subpicture_region_t *p_region )
{
if( !p_region )
return;
if( p_region->p_private )
subpicture_region_private_Delete( p_region->p_private );
if( p_region->p_picture )
picture_Release( p_region->p_picture );
text_segment_ChainDelete( p_region->p_text );
video_format_Clean( &p_region->fmt );
free( p_region );
}
static text_segment_t* ParseSubtitles( int *pi_align, const char *psz_subtitle )
{
text_segment_t* p_segment;
text_segment_t* p_first_segment;
style_stack_t* p_stack = NULL;
tag_stack_t* p_tag_stack = NULL;
//FIXME: Remove initial allocation? Might make the below code more complicated
p_first_segment = p_segment = text_segment_New( "" );
bool b_has_align = false;
/* */
while( *psz_subtitle )
{
/* HTML extensions */
if( *psz_subtitle == '<' )
{
char *psz_tagname = GetTag( &psz_subtitle, false );
if ( psz_tagname != NULL )
{
if( !strcasecmp( psz_tagname, "br" ) )
{
if ( !AppendCharacter( p_segment, '\n' ) )
{
free( psz_tagname );
goto fail;
}
}
else if( !strcasecmp( psz_tagname, "b" ) )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_BOLD;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
}
else if( !strcasecmp( psz_tagname, "i" ) )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_ITALIC;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
}
else if( !strcasecmp( psz_tagname, "u" ) )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_UNDERLINE;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
}
else if( !strcasecmp( psz_tagname, "s" ) )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_STRIKEOUT;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
}
else if( !strcasecmp( psz_tagname, "font" ) )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
char* psz_attribute_name;
char* psz_attribute_value;
while( ( psz_attribute_name = ConsumeAttribute( &psz_subtitle, &psz_attribute_value ) ) )
{
if ( !strcasecmp( psz_attribute_name, "face" ) )
{
p_segment->style->psz_fontname = psz_attribute_value;
// We don't want to free the attribute value since it has become our fontname
psz_attribute_value = NULL;
}
else if ( !strcasecmp( psz_attribute_name, "family" ) )
{
p_segment->style->psz_monofontname = psz_attribute_value;
psz_attribute_value = NULL;
}
else if ( !strcasecmp( psz_attribute_name, "size" ) )
{
int size = atoi( psz_attribute_value );
if( size )
{
p_segment->style->i_font_size = size;
p_segment->style->f_font_relsize = STYLE_DEFAULT_REL_FONT_SIZE *
STYLE_DEFAULT_FONT_SIZE / p_segment->style->i_font_size;
}
}
else if ( !strcasecmp( psz_attribute_name, "color" ) )
{
p_segment->style->i_font_color = vlc_html_color( psz_attribute_value, NULL );
p_segment->style->i_features |= STYLE_HAS_FONT_COLOR;
}
else if ( !strcasecmp( psz_attribute_name, "outline-color" ) )
{
p_segment->style->i_outline_color = vlc_html_color( psz_attribute_value, NULL );
p_segment->style->i_features |= STYLE_HAS_OUTLINE_COLOR;
}
else if ( !strcasecmp( psz_attribute_name, "shadow-color" ) )
{
p_segment->style->i_shadow_color = vlc_html_color( psz_attribute_value, NULL );
p_segment->style->i_features |= STYLE_HAS_SHADOW_COLOR;
}
else if ( !strcasecmp( psz_attribute_name, "outline-level" ) )
{
p_segment->style->i_outline_width = atoi( psz_attribute_value );
}
else if ( !strcasecmp( psz_attribute_name, "shadow-level" ) )
{
p_segment->style->i_shadow_width = atoi( psz_attribute_value );
}
else if ( !strcasecmp( psz_attribute_name, "back-color" ) )
{
p_segment->style->i_background_color = vlc_html_color( psz_attribute_value, NULL );
p_segment->style->i_features |= STYLE_HAS_BACKGROUND_COLOR;
}
else if ( !strcasecmp( psz_attribute_name, "alpha" ) )
{
p_segment->style->i_font_alpha = atoi( psz_attribute_value );
p_segment->style->i_features |= STYLE_HAS_FONT_ALPHA;
}
free( psz_attribute_name );
free( psz_attribute_value );
}
}
else
{
// This is an unknown tag. We need to hide it if it's properly closed, and display it otherwise
if ( !IsClosed( psz_subtitle, psz_tagname ) )
{
AppendCharacter( p_segment, '<' );
AppendString( p_segment, psz_tagname );
AppendCharacter( p_segment, '>' );
}
else
{
AppendTag( &p_tag_stack, psz_tagname );
// We don't want to free the tagname now, it will be freed when the tag
// gets poped from the stack.
psz_tagname = NULL;
}
// In any case, fall through and skip to the closing tag.
}
// Skip potential spaces & end tag
while ( *psz_subtitle && *psz_subtitle != '>' )
psz_subtitle++;
if ( *psz_subtitle == '>' )
psz_subtitle++;
free( psz_tagname );
}
else if( !strncmp( psz_subtitle, "</", 2 ))
{
char* psz_tagname = GetTag( &psz_subtitle, true );
if ( psz_tagname != NULL )
{
if ( !strcasecmp( psz_tagname, "b" ) ||
!strcasecmp( psz_tagname, "i" ) ||
!strcasecmp( psz_tagname, "u" ) ||
!strcasecmp( psz_tagname, "s" ) ||
!strcasecmp( psz_tagname, "font" ) )
{
// A closing tag for one of the tags we handle, meaning
// we pushed a style onto the stack earlier
p_segment = NewTextSegmentPopStyle( p_segment, &p_stack );
}
else
{
// Unknown closing tag. If it is closing an unknown tag, ignore it. Otherwise, display it
if ( !HasTag( &p_tag_stack, psz_tagname ) )
{
AppendString( p_segment, "</" );
AppendString( p_segment, psz_tagname );
AppendCharacter( p_segment, '>' );
}
}
while ( *psz_subtitle == ' ' )
psz_subtitle++;
if ( *psz_subtitle == '>' )
psz_subtitle++;
free( psz_tagname );
}
}
else
{
/* We have an unknown tag, just append it, and move on.
* The rest of the string won't be recognized as a tag, and
* we will ignore unknown closing tag
*/
AppendCharacter( p_segment, '<' );
psz_subtitle++;
}
}
/* SSA extensions */
else if( psz_subtitle[0] == '{' && psz_subtitle[1] == '\\' &&
strchr( psz_subtitle, '}' ) )
{
/* Check for forced alignment */
if( !b_has_align &&
!strncmp( psz_subtitle, "{\\an", 4 ) && psz_subtitle[4] >= '1' && psz_subtitle[4] <= '9' && psz_subtitle[5] == '}' )
{
static const int pi_vertical[3] = { SUBPICTURE_ALIGN_BOTTOM, 0, SUBPICTURE_ALIGN_TOP };
static const int pi_horizontal[3] = { SUBPICTURE_ALIGN_LEFT, 0, SUBPICTURE_ALIGN_RIGHT };
const int i_id = psz_subtitle[4] - '1';
b_has_align = true;
*pi_align = pi_vertical[i_id/3] | pi_horizontal[i_id%3];
}
/* TODO fr -> rotation */
/* Hide {\stupidity} */
psz_subtitle = strchr( psz_subtitle, '}' ) + 1;
}
/* MicroDVD extensions */
/* FIXME:
* - Currently, we don't do difference between X and x, and we should:
* Capital Letters applies to the whole text and not one line
* - We don't support Position and Coordinates
* - We don't support the DEFAULT flag (HEADER)
*/
else if( psz_subtitle[0] == '{' &&
psz_subtitle[2] == ':' && strchr( &psz_subtitle[2], '}' ) )
{
const char *psz_tag_end = strchr( &psz_subtitle[2], '}' );
size_t i_len = psz_tag_end - &psz_subtitle[3];
if( psz_subtitle[1] == 'Y' || psz_subtitle[1] == 'y' )
{
if( psz_subtitle[3] == 'i' )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_ITALIC;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
psz_subtitle++;
}
if( psz_subtitle[3] == 'b' )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_BOLD;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
psz_subtitle++;
}
if( psz_subtitle[3] == 'u' )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_style_flags |= STYLE_UNDERLINE;
p_segment->style->i_features |= STYLE_HAS_FLAGS;
psz_subtitle++;
}
}
else if( (psz_subtitle[1] == 'C' || psz_subtitle[1] == 'c' )
&& psz_subtitle[3] == '$' && i_len >= 7 )
{
/* Yes, they use BBGGRR, instead of RRGGBB */
char psz_color[7];
psz_color[0] = psz_subtitle[8]; psz_color[1] = psz_subtitle[9];
psz_color[2] = psz_subtitle[6]; psz_color[3] = psz_subtitle[7];
psz_color[4] = psz_subtitle[4]; psz_color[5] = psz_subtitle[5];
psz_color[6] = '\0';
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_font_color = vlc_html_color( psz_color, NULL );
p_segment->style->i_features |= STYLE_HAS_FONT_COLOR;
}
else if( psz_subtitle[1] == 'F' || psz_subtitle[1] == 'f' )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->psz_fontname = strndup( &psz_subtitle[3], i_len );
}
else if( psz_subtitle[1] == 'S' || psz_subtitle[1] == 's' )
{
int size = atoi( &psz_subtitle[3] );
if( size )
{
p_segment = NewTextSegmentPushStyle( p_segment, &p_stack );
p_segment->style->i_font_size = size;
p_segment->style->f_font_relsize = STYLE_DEFAULT_REL_FONT_SIZE *
STYLE_DEFAULT_FONT_SIZE / p_segment->style->i_font_size;
}
}
/* Currently unsupported since we don't have access to the i_align flag here
else if( psz_subtitle[1] == 'P' )
{
if( psz_subtitle[3] == "1" )
i_align = SUBPICTURE_ALIGN_TOP;
else if( psz_subtitle[3] == "0" )
i_align = SUBPICTURE_ALIGN_BOTTOM;
} */
// Hide other {x:y} atrocities, notably {o:x}
psz_subtitle = psz_tag_end + 1;
}
else
{
if( *psz_subtitle == '\n' || !strncasecmp( psz_subtitle, "\\n", 2 ) )
{
if ( !AppendCharacter( p_segment, '\n' ) )
goto fail;
if ( *psz_subtitle == '\n' )
psz_subtitle++;
else
psz_subtitle += 2;
}
else if( !strncasecmp( psz_subtitle, "\\h", 2 ) )
{
if ( !AppendString( p_segment, "\xC2\xA0" ) )
goto fail;
psz_subtitle += 2;
}
else
{
//FIXME: Highly inneficient
AppendCharacter( p_segment, *psz_subtitle );
psz_subtitle++;
}
}
}
while ( p_stack )
PopStyle( &p_stack );
while ( p_tag_stack )
{
tag_stack_t *p_tag = p_tag_stack;
p_tag_stack = p_tag_stack->p_next;
free( p_tag->psz_tagname );
free( p_tag );
}
return p_first_segment;
fail:
text_segment_ChainDelete( p_first_segment );
return NULL;
}
