/*****************************************************************************
* subsdec.c : text subtitles decoder
*****************************************************************************
- * Copyright (C) 2000-2001 VideoLAN
- * $Id: subsdec.c,v 1.7 2003/11/16 21:07:30 gbazin Exp $
+ * Copyright (C) 2000-2006 the VideoLAN team
+ * $Id$
*
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
+ * Derk-Jan Hartman <hartman at videolan dot org>
+ * Bernie Purcell <b dot purcell at adbglobal dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h> /* memcpy(), memset() */
-
#include <vlc/vlc.h>
-#include <vlc/vout.h>
-#include <vlc/decoder.h>
-#include <osd.h>
-#include <codecs.h>
+#include <vlc_vout.h>
+#include <vlc_codec.h>
-#if defined(HAVE_ICONV)
-#include <iconv.h>
-#endif
+#include <vlc_osd.h>
+#include <vlc_filter.h>
+#include <vlc_charset.h>
+#include <vlc_stream.h>
+#include <vlc_xml.h>
+#include <errno.h>
+#include <string.h>
-#include "charset.h"
+typedef struct
+{
+ char * psz_stylename; /* The name of the style, no comma's allowed */
+ text_style_t font_style;
+ int i_align;
+ int i_margin_h;
+ int i_margin_v;
+} ssa_style_t;
/*****************************************************************************
* decoder_sys_t : decoder descriptor
*****************************************************************************/
struct decoder_sys_t
{
+ vlc_bool_t b_ass; /* The subs are ASS */
+ int i_original_height;
+ int i_original_width;
int i_align; /* Subtitles alignment on the vout */
+ vlc_iconv_t iconv_handle; /* handle to iconv instance */
+ vlc_bool_t b_autodetect_utf8;
-#if defined(HAVE_ICONV)
- iconv_t iconv_handle; /* handle to iconv instance */
-#endif
+ ssa_style_t **pp_ssa_styles;
+ int i_ssa_styles;
};
/*****************************************************************************
static int OpenDecoder ( vlc_object_t * );
static void CloseDecoder ( vlc_object_t * );
-static void DecodeBlock ( decoder_t *, block_t ** );
-
-static void ParseText ( decoder_t *, block_t *, vout_thread_t * );
+static subpicture_t *DecodeBlock ( decoder_t *, block_t ** );
+static subpicture_t *ParseText ( decoder_t *, block_t * );
+static void ParseSSAHeader ( decoder_t * );
+static void ParseUSFHeader ( decoder_t * );
+static void ParseUSFHeaderTags( decoder_sys_t *, xml_reader_t * );
+static void ParseSSAString ( decoder_t *, char *, subpicture_t * );
+static void ParseUSFString ( decoder_t *, char *, subpicture_t * );
+static void ParseColor ( decoder_t *, char *, int *, int * );
+static char *StripTags ( char * );
+static char *CreateHtmlSubtitle ( char * );
-#define DEFAULT_NAME "System Default"
+#define DEFAULT_NAME "Default"
+#define MAX_LINE 8192
/*****************************************************************************
* Module descriptor.
*****************************************************************************/
-#if defined(HAVE_ICONV)
-static char *ppsz_encodings[] = { DEFAULT_NAME, "ASCII", "UTF-8", "",
+static const char *ppsz_encodings[] = { DEFAULT_NAME, "ASCII", "UTF-8", "",
"ISO-8859-1", "CP1252", "MacRoman", "MacIceland","ISO-8859-15", "",
"ISO-8859-2", "CP1250", "MacCentralEurope", "MacCroatian", "MacRomania", "",
"ISO-8859-5", "CP1251", "MacCyrillic", "MacUkraine", "KOI8-R", "KOI8-U", "KOI8-RU", "",
"HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
"Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
"HPROMAN8", "NEXTSTEP" };
-#endif
+/*
+SSA supports charset selection.
+The following known charsets are used:
+
+0 = Ansi - Western European
+1 = default
+2 = symbol
+3 = invalid
+77 = Mac
+128 = Japanese (Shift JIS)
+129 = Hangul
+130 = Johab
+134 = GB2312 Simplified Chinese
+136 = Big5 Traditional Chinese
+161 = Greek
+162 = Turkish
+163 = Vietnamese
+177 = Hebrew
+178 = Arabic
+186 = Baltic
+204 = Russian (Cyrillic)
+222 = Thai
+238 = Eastern European
+254 = PC 437
+*/
static int pi_justification[] = { 0, 1, 2 };
-static char *ppsz_justification_text[] = {N_("Center"),N_("Left"),N_("Right")};
+static const char *ppsz_justification_text[] = {N_("Center"),N_("Left"),N_("Right")};
#define ENCODING_TEXT N_("Subtitles text encoding")
-#define ENCODING_LONGTEXT N_("Change the encoding used in text subtitles")
+#define ENCODING_LONGTEXT N_("Set the encoding used in text subtitles")
#define ALIGN_TEXT N_("Subtitles justification")
-#define ALIGN_LONGTEXT N_("Change the justification of substitles")
+#define ALIGN_LONGTEXT N_("Set the justification of subtitles")
+#define AUTODETECT_UTF8_TEXT N_("UTF-8 subtitles autodetection")
+#define AUTODETECT_UTF8_LONGTEXT N_("This enables automatic detection of " \
+ "UTF-8 encoding within subtitles files.")
+#define FORMAT_TEXT N_("Formatted Subtitles")
+#define FORMAT_LONGTEXT N_("Some subtitle formats allow for text formatting. " \
+ "VLC partly implements this, but you can choose to disable all formatting.")
+
vlc_module_begin();
- set_description( _("text subtitles decoder") );
+ set_shortname( _("Subtitles"));
+ set_description( _("Text subtitles decoder") );
set_capability( "decoder", 50 );
set_callbacks( OpenDecoder, CloseDecoder );
+ set_category( CAT_INPUT );
+ set_subcategory( SUBCAT_INPUT_SCODEC );
- add_category_hint( N_("Subtitles"), NULL, VLC_FALSE );
add_integer( "subsdec-align", 0, NULL, ALIGN_TEXT, ALIGN_LONGTEXT,
- VLC_TRUE );
+ VLC_FALSE );
change_integer_list( pi_justification, ppsz_justification_text, 0 );
-#if defined(HAVE_ICONV)
- add_string( "subsdec-encoding", "UTF-8", NULL,
+ add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
change_string_list( ppsz_encodings, 0, 0 );
-#endif
+ add_bool( "subsdec-autodetect-utf8", VLC_TRUE, NULL,
+ AUTODETECT_UTF8_TEXT, AUTODETECT_UTF8_LONGTEXT, VLC_FALSE );
+ add_bool( "subsdec-formatted", VLC_TRUE, NULL, FORMAT_TEXT, FORMAT_LONGTEXT,
+ VLC_FALSE );
vlc_module_end();
/*****************************************************************************
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
- decoder_t *p_dec = (decoder_t*)p_this;
+ decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
- vlc_value_t val;
+ vlc_value_t val;
- if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','u','b','t') &&
+ if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','u','b','t') &&
+ p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') &&
p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
{
return VLC_EGENERIC;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys =
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ (decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
{
msg_Err( p_dec, "out of memory" );
- return VLC_EGENERIC;
+ return VLC_ENOMEM;
}
- var_Create( p_dec, "subsdec-align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Get( p_dec, "subsdec-align", &val );
- p_sys->i_align = val.i_int;
+ /* init of p_sys */
+ p_sys->i_align = 0;
+ p_sys->iconv_handle = (vlc_iconv_t)-1;
+ p_sys->b_autodetect_utf8 = VLC_FALSE;
+ p_sys->b_ass = VLC_FALSE;
+ p_sys->i_original_height = -1;
+ p_sys->i_original_width = -1;
+ p_sys->pp_ssa_styles = NULL;
+ p_sys->i_ssa_styles = 0;
-#if defined(HAVE_ICONV)
- var_Create( p_dec, "subsdec-encoding",
- VLC_VAR_STRING | VLC_VAR_DOINHERIT );
- var_Get( p_dec, "subsdec-encoding", &val );
- if( !strcmp( val.psz_string, DEFAULT_NAME ) )
+ char *psz_charset = NULL;
+ /* First try demux-specified encoding */
+ if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
{
- char *psz_charset =(char*)malloc( 100 );
- vlc_current_charset( &psz_charset );
- p_sys->iconv_handle = iconv_open( "UTF-8", psz_charset );
- free( psz_charset );
+ psz_charset = strdup (p_dec->fmt_in.subs.psz_encoding);
+ msg_Dbg (p_dec, "trying demuxer-specified character encoding: %s",
+ p_dec->fmt_in.subs.psz_encoding ?: "not specified");
}
- else
+
+ /* Second, try configured encoding */
+ if (psz_charset == NULL)
+ {
+ psz_charset = var_CreateGetNonEmptyString (p_dec, "subsdec-encoding");
+ if ((psz_charset != NULL) && !strcasecmp (psz_charset, DEFAULT_NAME))
+ {
+ free (psz_charset);
+ psz_charset = NULL;
+ }
+
+ msg_Dbg (p_dec, "trying configured character encoding: %s",
+ psz_charset ?: "not specified");
+ }
+
+ /* Third, try "local" encoding with optional UTF-8 autodetection */
+ if (psz_charset == NULL)
+ {
+ psz_charset = strdup (GetFallbackEncoding ());
+ msg_Dbg (p_dec, "trying default character encoding: %s",
+ psz_charset ?: "not specified");
+
+ if (var_CreateGetBool (p_dec, "subsdec-autodetect-utf8"))
+ {
+ msg_Dbg (p_dec, "using automatic UTF-8 detection");
+ p_sys->b_autodetect_utf8 = VLC_TRUE;
+ }
+ }
+
+ if (psz_charset == NULL)
{
- p_sys->iconv_handle = iconv_open( "UTF-8", val.psz_string );
+ psz_charset = strdup ("UTF-8");
+ msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
+ psz_charset ?: "error");
}
- if( p_sys->iconv_handle == (iconv_t)-1 )
+ if (psz_charset == NULL)
{
- msg_Warn( p_dec, "Unable to do requested conversion" );
+ free (p_sys);
+ return VLC_ENOMEM;
}
- if( val.psz_string ) free( val.psz_string );
-#else
+ if (strcasecmp (psz_charset, "UTF-8") && strcasecmp (psz_charset, "utf8"))
+ {
+ p_sys->iconv_handle = vlc_iconv_open ("UTF-8", psz_charset);
+ if (p_sys->iconv_handle == (vlc_iconv_t)(-1))
+ msg_Err (p_dec, "cannot convert from %s: %s", psz_charset,
+ strerror (errno));
+ }
+ free (psz_charset);
- msg_Dbg( p_dec, "No iconv support available" );
-#endif
+ var_Create( p_dec, "subsdec-align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "subsdec-align", &val );
+ p_sys->i_align = val.i_int;
-#if 0
- if( p_demux_data )
- msg_Dbg( p_dec, p_demux_data->psz_header );
-#endif
+ if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
+ {
+ if( p_dec->fmt_in.i_extra > 0 )
+ ParseSSAHeader( p_dec );
+ }
+ else if( p_dec->fmt_in.i_codec == VLC_FOURCC('u','s','f',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
+ {
+ if( p_dec->fmt_in.i_extra > 0 )
+ ParseUSFHeader( p_dec );
+ }
return VLC_SUCCESS;
}
****************************************************************************
* This function must be fed with complete subtitles units.
****************************************************************************/
-static void DecodeBlock( decoder_t *p_dec, block_t **pp_block )
+static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
- vout_thread_t *p_vout;
+ subpicture_t *p_spu = NULL;
- /* Here we are dealing with text subtitles */
- p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
- if( !p_vout )
- {
- msg_Warn( p_dec, "couldn't find a video output, trashing subtitle" );
- }
+ if( !pp_block || *pp_block == NULL ) return NULL;
+
+ p_spu = ParseText( p_dec, *pp_block );
+
+ block_Release( *pp_block );
+ *pp_block = NULL;
- ParseText( p_dec, *pp_block, p_vout );
- vlc_object_release( p_vout );
+ return p_spu;
}
/*****************************************************************************
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
- vout_thread_t *p_vout;
- p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
- if( p_vout != NULL && p_vout->p_subpicture != NULL )
+ if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
{
- subpicture_t *p_subpic;
- int i_subpic;
-
- for( i_subpic = 0; i_subpic < VOUT_MAX_SUBPICTURES; i_subpic++ )
- {
- p_subpic = &p_vout->p_subpicture[i_subpic];
-
- if( p_subpic != NULL &&
- ( p_subpic->i_status == RESERVED_SUBPICTURE
- || p_subpic->i_status == READY_SUBPICTURE ) )
- {
- vout_DestroySubPicture( p_vout, p_subpic );
- }
- }
+ vlc_iconv_close( p_sys->iconv_handle );
}
- if( p_vout ) vlc_object_release( p_vout );
-#if defined(HAVE_ICONV)
- if( p_sys->iconv_handle != (iconv_t)-1 )
+ if( p_sys->pp_ssa_styles )
{
- iconv_close( p_sys->iconv_handle );
+ int i;
+ for( i = 0; i < p_sys->i_ssa_styles; i++ )
+ {
+ if( p_sys->pp_ssa_styles[i]->psz_stylename ) free( p_sys->pp_ssa_styles[i]->psz_stylename );
+ p_sys->pp_ssa_styles[i]->psz_stylename = NULL;
+ if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname ) free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
+ p_sys->pp_ssa_styles[i]->font_style.psz_fontname = NULL;
+ if( p_sys->pp_ssa_styles[i] ) free( p_sys->pp_ssa_styles[i] ); p_sys->pp_ssa_styles[i] = NULL;
+ }
+ free( p_sys->pp_ssa_styles ); p_sys->pp_ssa_styles = NULL;
}
-#endif
free( p_sys );
}
/*****************************************************************************
* ParseText: parse an text subtitle packet and send it to the video output
*****************************************************************************/
-static void ParseText( decoder_t *p_dec, block_t *p_block,
- vout_thread_t *p_vout )
+static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
- char *psz_subtitle;
- int i_align_h, i_align_v;
+ subpicture_t *p_spu = NULL;
+ char *psz_subtitle = NULL;
+ video_format_t fmt;
/* We cannot display a subpicture with no date */
if( p_block->i_pts == 0 )
{
msg_Warn( p_dec, "subtitle without a date" );
- return;
+ return NULL;
}
/* Check validity of packet data */
- if( p_block->i_buffer <= 1 || p_block->p_buffer[0] == '\0' )
+ /* An "empty" line containing only \0 can be used to force
+ and ephemer picture from the screen */
+ if( p_block->i_buffer < 1 )
{
- msg_Warn( p_dec, "empty subtitle" );
- return;
+ msg_Warn( p_dec, "no subtitle data" );
+ return NULL;
}
/* Should be resiliant against bad subtitles */
- psz_subtitle = strndup( p_block->p_buffer, p_block->i_buffer );
-
- i_align_h = p_sys->i_align ? 20 : 0;
- i_align_v = 10;
-
-#if defined(HAVE_ICONV)
- if( p_sys->iconv_handle != (iconv_t)-1 )
- {
- char *psz_new_subtitle;
- char *psz_convert_buffer_out;
- const char *psz_convert_buffer_in;
- size_t ret, inbytes_left, outbytes_left;
-
- psz_new_subtitle = malloc( 6 * strlen( psz_subtitle ) );
- psz_convert_buffer_out = psz_new_subtitle;
- psz_convert_buffer_in = psz_subtitle;
- inbytes_left = strlen( psz_subtitle );
- outbytes_left = 6 * inbytes_left;
- ret = iconv( p_sys->iconv_handle, &psz_convert_buffer_in,
- &inbytes_left, &psz_convert_buffer_out, &outbytes_left );
- *psz_convert_buffer_out = '\0';
-
- if( inbytes_left )
+ psz_subtitle = strndup( (const char *)p_block->p_buffer,
+ p_block->i_buffer );
+ if( psz_subtitle == NULL )
+ return NULL;
+
+ if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
+ {
+ if (EnsureUTF8( psz_subtitle ) == NULL)
{
- msg_Warn( p_dec, "Something fishy happened during conversion" );
+ msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
+ "Try manually setting a character-encoding "
+ "before you open the file.") );
}
- else
+ }
+ else
+ {
+
+ if( p_sys->b_autodetect_utf8 )
+ {
+ if( IsUTF8( psz_subtitle ) == NULL )
+ {
+ msg_Dbg( p_dec, "invalid UTF-8 sequence: "
+ "disabling UTF-8 subtitles autodetection" );
+ p_sys->b_autodetect_utf8 = VLC_FALSE;
+ }
+ }
+
+ if( !p_sys->b_autodetect_utf8 )
{
+ size_t inbytes_left = strlen( psz_subtitle );
+ size_t outbytes_left = 6 * inbytes_left;
+ char *psz_new_subtitle = malloc( outbytes_left + 1 );
+ char *psz_convert_buffer_out = psz_new_subtitle;
+ const char *psz_convert_buffer_in = psz_subtitle;
+
+ size_t ret = vlc_iconv( p_sys->iconv_handle,
+ &psz_convert_buffer_in, &inbytes_left,
+ &psz_convert_buffer_out, &outbytes_left );
+
+ *psz_convert_buffer_out++ = '\0';
free( psz_subtitle );
- psz_subtitle = psz_new_subtitle;
+
+ if( ( ret == (size_t)(-1) ) || inbytes_left )
+ {
+ free( psz_new_subtitle );
+ msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
+ "Try manually setting a character-encoding "
+ "before you open the file.") );
+ return NULL;
+ }
+
+ psz_subtitle = realloc( psz_new_subtitle,
+ psz_convert_buffer_out - psz_new_subtitle );
}
}
-#endif
- if( p_dec->p_fifo->i_fourcc == VLC_FOURCC('s','s','a',' ') )
+ /* Create the subpicture unit */
+ p_spu = p_dec->pf_spu_buffer_new( p_dec );
+ if( !p_spu )
+ {
+ msg_Warn( p_dec, "can't get spu buffer" );
+ if( psz_subtitle ) free( psz_subtitle );
+ return NULL;
+ }
+
+ p_spu->b_pausable = VLC_TRUE;
+
+ /* Create a new subpicture region */
+ memset( &fmt, 0, sizeof(video_format_t) );
+ fmt.i_chroma = VLC_FOURCC('T','E','X','T');
+ fmt.i_aspect = 0;
+ fmt.i_width = fmt.i_height = 0;
+ fmt.i_x_offset = fmt.i_y_offset = 0;
+ p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
+ if( !p_spu->p_region )
+ {
+ msg_Err( p_dec, "cannot allocate SPU region" );
+ if( psz_subtitle ) free( psz_subtitle );
+ p_dec->pf_spu_buffer_del( p_dec, p_spu );
+ return NULL;
+ }
+
+ /* Decode and format the subpicture unit */
+ if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') &&
+ p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') )
+ {
+ /* Normal text subs, easy markup */
+ p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
+ p_spu->i_x = p_sys->i_align ? 20 : 0;
+ p_spu->i_y = 10;
+
+ /* Remove formatting from string */
+
+ p_spu->p_region->psz_text = StripTags( psz_subtitle );
+ p_spu->p_region->psz_html = CreateHtmlSubtitle( psz_subtitle );
+
+ 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 = VLC_FALSE;
+ }
+ else
+ {
+ /* Decode SSA/USF strings */
+ if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') )
+ ParseSSAString( p_dec, psz_subtitle, p_spu );
+ else
+ ParseUSFString( p_dec, psz_subtitle, p_spu );
+
+ 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 = VLC_FALSE;
+ p_spu->i_original_picture_width = p_sys->i_original_width;
+ p_spu->i_original_picture_height = p_sys->i_original_height;
+ }
+ if( psz_subtitle ) free( psz_subtitle );
+
+ return p_spu;
+}
+
+static void ParseUSFString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ subpicture_t *p_spu = p_spu_in;
+ char *psz_text;
+ char *psz_text_start;
+ ssa_style_t *p_style = NULL;
+ int i;
+
+ /* Create a text only copy of the subtitle (for legacy implementations) and copy
+ * the rich html version across as is - for parsing by a rendering engine capable
+ * of understanding it.
+ */
+ p_spu->p_region->psz_text = NULL;
+ p_spu->p_region->psz_html = strdup( psz_subtitle );
+
+ for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
- /* Decode SSA strings */
- /* We expect: ReadOrder, Layer, Style, Name, MarginL, MarginR, MarginV, Effect, Text */
- char *psz_new_subtitle;
- char *psz_buffer_sub;
- int i_comma;
- int i_text;
+ if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
+ p_style = p_sys->pp_ssa_styles[i];
+ }
- psz_buffer_sub = psz_subtitle;
- for( ;; )
+ /* The StripTags() function doesn't do everything we need (eg. <br/> tag )
+ * so do it here ourselves.
+ */
+ psz_text_start = malloc( strlen( psz_subtitle ));
+
+ psz_text = psz_text_start;
+ while( *psz_subtitle )
+ {
+ if( *psz_subtitle == '<' )
{
- i_comma = 0;
- while( i_comma < 8 &&
- *psz_buffer_sub != '\0' )
+ if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
+ *psz_text++ = '\n';
+ else if( !strncasecmp( psz_subtitle, "<text ", 6 ))
{
- if( *psz_buffer_sub == ',' )
+ char *psz_style = strcasestr( psz_subtitle, "style=\"" );
+
+ if( psz_style && ( psz_style < strchr( psz_subtitle, '>' ) ))
{
- i_comma++;
+ int i_len;
+
+ psz_style += strspn( psz_style, "\"" ) + 1;
+ i_len = strcspn( psz_style, "\"" );
+
+ psz_style[ i_len ] = '\0';
+
+ for( i = 0; i < p_sys->i_ssa_styles; i++ )
+ {
+ if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
+ p_style = p_sys->pp_ssa_styles[i];
+ }
+
+ psz_style[ i_len ] = '\"';
}
+ }
+
+ psz_subtitle += strcspn( psz_subtitle, ">" );
+ }
+ else if( *psz_subtitle == '&' )
+ {
+ if( !strncasecmp( psz_subtitle, "<", 4 ))
+ *psz_text++ = '<';
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ *psz_text++ = '>';
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ *psz_text++ = '&';
+
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( ( *psz_subtitle == '\t' ) ||
+ ( *psz_subtitle == '\r' ) ||
+ ( *psz_subtitle == '\n' ) ||
+ ( *psz_subtitle == ' ' ) )
+ {
+ if( ( psz_text_start < psz_text ) &&
+ ( *(psz_text-1) != ' ' ) )
+ {
+ *psz_text++ = ' ';
+ }
+ }
+ else
+ *psz_text++ = *psz_subtitle;
+
+ psz_subtitle++;
+ }
+ *psz_text = '\0';
+ p_spu->p_region->psz_text = strdup( psz_text_start );
+ free( psz_text_start );
+
+ if( p_style == NULL )
+ {
+ p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
+ p_spu->i_x = p_sys->i_align ? 20 : 0;
+ p_spu->i_y = 10;
+ }
+ else
+ {
+ msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
+ p_spu->p_region->p_style = &p_style->font_style;
+ p_spu->i_flags = p_style->i_align;
+ }
+}
+
+static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
+{
+ /* We expect MKV formatted SSA:
+ * ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
+ * MarginV, Effect, Text */
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ subpicture_t *p_spu = p_spu_in;
+ ssa_style_t *p_style = NULL;
+ char *psz_new_subtitle = NULL;
+ char *psz_buffer_sub = NULL;
+ char *psz_style = NULL;
+ char *psz_style_start = NULL;
+ char *psz_style_end = NULL;
+ int i_text = 0, i_comma = 0, i_strlen = 0, i;
+ int i_margin_l = 0, i_margin_r = 0, i_margin_v = 0;
+
+ psz_buffer_sub = psz_subtitle;
+
+ p_spu->p_region->psz_html = NULL;
+
+ i_comma = 0;
+ while( i_comma < 8 && *psz_buffer_sub != '\0' )
+ {
+ if( *psz_buffer_sub == ',' )
+ {
+ i_comma++;
+ if( i_comma == 2 ) psz_style_start = &psz_buffer_sub[1];
+ if( i_comma == 3 ) psz_style_end = &psz_buffer_sub[0];
+ if( i_comma == 4 ) i_margin_l = (int)strtol( psz_buffer_sub+1, NULL, 10 );
+ if( i_comma == 5 ) i_margin_r = (int)strtol( psz_buffer_sub+1, NULL, 10 );
+ if( i_comma == 6 ) i_margin_v = (int)strtol( psz_buffer_sub+1, NULL, 10 );
+ }
+ psz_buffer_sub++;
+ }
+
+ if( *psz_buffer_sub == '\0' && i_comma == 8 )
+ {
+ msg_Dbg( p_dec, "couldn't find all fields in this SSA line" );
+ return;
+ }
+
+ psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
+ i_text = 0;
+ while( psz_buffer_sub[0] != '\0' )
+ {
+ if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'n' )
+ {
+ psz_new_subtitle[i_text] = ' ';
+ i_text++;
+ psz_buffer_sub += 2;
+ }
+ else if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'N' )
+ {
+ psz_new_subtitle[i_text] = '\n';
+ i_text++;
+ psz_buffer_sub += 2;
+ }
+ else if( psz_buffer_sub[0] == '{' &&
+ psz_buffer_sub[1] == '\\' )
+ {
+ /* SSA control code */
+ while( psz_buffer_sub[0] != '\0' &&
+ psz_buffer_sub[0] != '}' )
+ {
psz_buffer_sub++;
}
- psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
- i_text = 0;
- while( psz_buffer_sub[0] != '\0' )
+ psz_buffer_sub++;
+ }
+ else
+ {
+ psz_new_subtitle[i_text] = psz_buffer_sub[0];
+ i_text++;
+ psz_buffer_sub++;
+ }
+ }
+ psz_new_subtitle[i_text] = '\0';
+
+ i_strlen = __MAX( psz_style_end - psz_style_start, 0);
+ psz_style = (char *)malloc( i_strlen + 1);
+ psz_style = memcpy( psz_style, psz_style_start, i_strlen );
+ psz_style[i_strlen] = '\0';
+
+ for( i = 0; i < p_sys->i_ssa_styles; i++ )
+ {
+ if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
+ p_style = p_sys->pp_ssa_styles[i];
+ }
+ if( psz_style ) free( psz_style );
+
+ p_spu->p_region->psz_text = psz_new_subtitle;
+ if( p_style == NULL )
+ {
+ p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
+ p_spu->i_x = p_sys->i_align ? 20 : 0;
+ p_spu->i_y = 10;
+ }
+ else
+ {
+ msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
+ p_spu->p_region->p_style = &p_style->font_style;
+ p_spu->i_flags = p_style->i_align;
+ if( p_style->i_align & SUBPICTURE_ALIGN_LEFT )
+ {
+ p_spu->i_x = (i_margin_l) ? i_margin_l : p_style->i_margin_h;
+ }
+ else if( p_style->i_align & SUBPICTURE_ALIGN_RIGHT )
+ {
+ p_spu->i_x = (i_margin_r) ? i_margin_r : p_style->i_margin_h;
+ }
+ p_spu->i_y = (i_margin_v) ? i_margin_v : p_style->i_margin_v;
+ }
+}
+
+static char* GotoNextLine( char *psz_text )
+{
+ char *p_newline = psz_text;
+
+ while( p_newline[0] != '\0' )
+ {
+ if( p_newline[0] == '\n' || p_newline[0] == '\r' )
+ {
+ p_newline++;
+ while( p_newline[0] == '\n' || p_newline[0] == '\r' )
+ p_newline++;
+ break;
+ }
+ else p_newline++;
+ }
+ return p_newline;
+}
+
+/*****************************************************************************
+ * ParseColor: SSA stores color in BBGGRR, in ASS it uses AABBGGRR
+ * The string value in the string can be a pure integer, or hexadecimal &HBBGGRR
+ *****************************************************************************/
+static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *pi_alpha )
+{
+ int i_color = 0;
+ if( !strncasecmp( psz_color, "&H", 2 ) )
+ {
+ /* textual HEX representation */
+ i_color = (int) strtol( psz_color+2, NULL, 16 );
+ }
+ else i_color = (int) strtol( psz_color, NULL, 0 );
+
+ *pi_color = 0;
+ *pi_color |= ( ( i_color & 0x000000FF ) << 16 ); /* Red */
+ *pi_color |= ( ( i_color & 0x0000FF00 ) ); /* Green */
+ *pi_color |= ( ( i_color & 0x00FF0000 ) >> 16 ); /* Blue */
+
+ if( pi_alpha != NULL )
+ *pi_alpha = ( i_color & 0xFF000000 ) >> 24;
+}
+
+/*****************************************************************************
+ * ParseUSFHeader: Retrieve global formatting information etc
+ *****************************************************************************/
+static void ParseUSFHeader( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ stream_t *p_sub = NULL;
+ xml_t *p_xml = NULL;
+ xml_reader_t *p_xml_reader = NULL;
+
+ p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
+ p_dec->fmt_in.p_extra,
+ p_dec->fmt_in.i_extra,
+ VLC_TRUE );
+ if( p_sub )
+ {
+ p_xml = xml_Create( p_dec );
+ if( p_xml )
+ {
+ p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
+ if( p_xml_reader )
{
- if( psz_buffer_sub[0] == '\\' && ( psz_buffer_sub[1] =='n' || psz_buffer_sub[1] =='N' ) )
+ /* Look for Root Node */
+ if( xml_ReaderRead( p_xml_reader ) == 1 )
+ {
+ char *psz_node = xml_ReaderName( p_xml_reader );
+
+ if( !strcasecmp( "usfsubtitles", psz_node ) )
+ ParseUSFHeaderTags( p_sys, p_xml_reader );
+
+ free( psz_node );
+ }
+
+ xml_ReaderDelete( p_xml, p_xml_reader );
+ }
+ xml_Delete( p_xml );
+ }
+ stream_Delete( p_sub );
+ }
+}
+
+static void ParseUSFHeaderTags( decoder_sys_t *p_sys, xml_reader_t *p_xml_reader )
+{
+ char *psz_node;
+ ssa_style_t *p_style = NULL;
+ int i_style_level = 0;
+ int i_metadata_level = 0;
+
+ while ( xml_ReaderRead( p_xml_reader ) == 1 )
+ {
+ switch ( xml_ReaderNodeType( p_xml_reader ) )
+ {
+ case XML_READER_TEXT:
+ case XML_READER_NONE:
+ break;
+ case XML_READER_ENDELEM:
+ psz_node = xml_ReaderName( p_xml_reader );
+
+ if( psz_node )
{
- psz_new_subtitle[i_text] = '\n';
- i_text++;
- psz_buffer_sub += 2;
+ switch (i_style_level)
+ {
+ case 0:
+ if( !strcasecmp( "metadata", psz_node ) && (i_metadata_level == 1) )
+ {
+ i_metadata_level--;
+ }
+ break;
+ case 1:
+ if( !strcasecmp( "styles", psz_node ) )
+ {
+ i_style_level--;
+ }
+ break;
+ case 2:
+ if( !strcasecmp( "style", psz_node ) )
+ {
+ p_style->font_style.i_text_align = p_style->i_align;
+
+ TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
+
+ p_style = NULL;
+ i_style_level--;
+ }
+ break;
+ }
+
+ free( psz_node );
}
- else if( psz_buffer_sub[0] == '{' && psz_buffer_sub[1] == '\\' )
+ break;
+ case XML_READER_STARTELEM:
+ psz_node = xml_ReaderName( p_xml_reader );
+
+ if( psz_node )
{
- /* SSA control code */
- while( psz_buffer_sub[0] != '\0' && psz_buffer_sub[0] != '}' )
+ if( !strcasecmp( "metadata", psz_node ) && (i_style_level == 0) )
+ {
+ i_metadata_level++;
+ }
+ else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
+ {
+ while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
+ {
+ char *psz_name = xml_ReaderName ( p_xml_reader );
+ char *psz_value = xml_ReaderValue ( p_xml_reader );
+
+ if( psz_name && psz_value )
+ {
+ if( !strcasecmp( "x", psz_name ) )
+ p_sys->i_original_width = atoi( psz_value );
+ else if( !strcasecmp( "y", psz_name ) )
+ p_sys->i_original_height = atoi( psz_value );
+ }
+ if( psz_name ) free( psz_name );
+ if( psz_value ) free( psz_value );
+ }
+ }
+ else if( !strcasecmp( "styles", psz_node ) && (i_style_level == 0) )
+ {
+ i_style_level++;
+ }
+ else if( !strcasecmp( "style", psz_node ) && (i_style_level == 1) )
{
- psz_buffer_sub++;
+ i_style_level++;
+
+ p_style = calloc( 1, sizeof(ssa_style_t) );
+
+ while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
+ {
+ char *psz_name = xml_ReaderName ( p_xml_reader );
+ char *psz_value = xml_ReaderValue ( p_xml_reader );
+
+ if( psz_name && psz_value )
+ {
+ if( !strcasecmp( "name", psz_name ) )
+ p_style->psz_stylename = strdup( psz_value);
+ }
+ if( psz_name ) free( psz_name );
+ if( psz_value ) free( psz_value );
+ }
}
- psz_buffer_sub++;
+ else if( !strcasecmp( "fontstyle", psz_node ) && (i_style_level == 2) )
+ {
+ while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
+ {
+ char *psz_name = xml_ReaderName ( p_xml_reader );
+ char *psz_value = xml_ReaderValue ( p_xml_reader );
+
+ if( psz_name && psz_value )
+ {
+ if( !strcasecmp( "face", psz_name ) )
+ p_style->font_style.psz_fontname = strdup( psz_value);
+ else if( !strcasecmp( "size", psz_name ) )
+ p_style->font_style.i_font_size = atoi( psz_value);
+ else if( !strcasecmp( "italic", psz_name ) )
+ {
+ if( !strcasecmp( "yes", psz_value ))
+ p_style->font_style.i_style_flags |= STYLE_ITALIC;
+ }
+ else if( !strcasecmp( "weight", psz_name ) )
+ {
+ if( !strcasecmp( "bold", psz_value ))
+ p_style->font_style.i_style_flags |= STYLE_BOLD;
+ }
+ else if( !strcasecmp( "underline", psz_name ) )
+ {
+ if( !strcasecmp( "yes", psz_value ))
+ p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
+ }
+ else if( !strcasecmp( "color", psz_name ) )
+ {
+ if( *psz_value == '#' )
+ {
+ unsigned long col = strtol(psz_value+1, NULL, 16);
+ p_style->font_style.i_font_color = (col & 0x00ffffff);
+ /* From DTD: <!-- alpha range = 0..100 --> */
+ p_style->font_style.i_font_alpha = ((col >> 24) & 0xff) * 255 / 100;
+ }
+ }
+ else if( !strcasecmp( "outline-color", psz_name ) )
+ {
+ if( *psz_value == '#' )
+ {
+ unsigned long col = strtol(psz_value+1, NULL, 16);
+ p_style->font_style.i_outline_color = (col & 0x00ffffff);
+ /* From DTD: <!-- alpha range = 0..100 --> */
+ p_style->font_style.i_outline_alpha = ((col >> 24) & 0xff) * 255 / 100;
+ }
+ }
+ else if( !strcasecmp( "shadow-color", psz_name ) )
+ {
+ if( *psz_value == '#' )
+ {
+ unsigned long col = strtol(psz_value+1, NULL, 16);
+ p_style->font_style.i_shadow_color = (col & 0x00ffffff);
+ /* From DTD: <!-- alpha range = 0..100 --> */
+ p_style->font_style.i_shadow_alpha = ((col >> 24) & 0xff) * 255 / 100;
+ }
+ }
+ }
+ if( psz_name ) free( psz_name );
+ if( psz_value ) free( psz_value );
+ }
+ }
+ else if( !strcasecmp( "position", psz_node ) && (i_style_level == 2) )
+ {
+ while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
+ {
+ char *psz_name = xml_ReaderName ( p_xml_reader );
+ char *psz_value = xml_ReaderValue ( p_xml_reader );
+
+ if( psz_name && psz_value )
+ {
+ if( !strcasecmp( "alignment", psz_name ) )
+ {
+ if( !strcasecmp( "TopLeft", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+ p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+ }
+ else if( !strcasecmp( "TopCenter", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+ }
+ else if( !strcasecmp( "TopRight", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+ p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+ }
+ else if( !strcasecmp( "MiddleLeft", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+ }
+ else if( !strcasecmp( "MiddleCenter", psz_value ) )
+ {
+ p_style->i_align = 0;
+ }
+ else if( !strcasecmp( "MiddleRight", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+ }
+ else if( !strcasecmp( "BottomLeft", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+ p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+ }
+ else if( !strcasecmp( "BottomCenter", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+ }
+ else if( !strcasecmp( "BottomRight", psz_value ) )
+ {
+ p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+ p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+ }
+ }
+ }
+ if( psz_name ) free( psz_name );
+ if( psz_value ) free( psz_value );
+ }
+ }
+
+ free( psz_node );
+ }
+ break;
+ }
+ }
+ if( p_style ) free( p_style );
+}
+/*****************************************************************************
+ * ParseSSAHeader: Retrieve global formatting information etc
+ *****************************************************************************/
+static void ParseSSAHeader( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ char *psz_parser = NULL;
+ char *psz_header = malloc( p_dec->fmt_in.i_extra+1 );
+ int i_section_type = 1;
+
+ memcpy( psz_header, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
+ psz_header[ p_dec->fmt_in.i_extra] = '\0';
+
+ /* Handle [Script Info] section */
+ psz_parser = strcasestr( psz_header, "[Script Info]" );
+ if( psz_parser == NULL ) goto eof;
+
+ psz_parser = GotoNextLine( psz_parser );
+
+ while( psz_parser[0] != '\0' )
+ {
+ int temp;
+ char buffer_text[MAX_LINE + 1];
+
+ if( psz_parser[0] == '!' || psz_parser[0] == ';' ) /* comment */;
+ else if( sscanf( psz_parser, "PlayResX: %d", &temp ) == 1 )
+ p_sys->i_original_width = ( temp > 0 ) ? temp : -1;
+ else if( sscanf( psz_parser, "PlayResY: %d", &temp ) == 1 )
+ p_sys->i_original_height = ( temp > 0 ) ? temp : -1;
+ else if( sscanf( psz_parser, "Script Type: %8192s", buffer_text ) == 1 )
+ {
+ if( !strcasecmp( buffer_text, "V4.00+" ) ) p_sys->b_ass = VLC_TRUE;
+ }
+ else if( !strncasecmp( psz_parser, "[V4 Styles]", 11 ) )
+ i_section_type = 1;
+ else if( !strncasecmp( psz_parser, "[V4+ Styles]", 12) )
+ {
+ i_section_type = 2;
+ p_sys->b_ass = VLC_TRUE;
+ }
+ else if( !strncasecmp( psz_parser, "[Events]", 8 ) )
+ i_section_type = 4;
+ else if( !strncasecmp( psz_parser, "Style:", 6 ) )
+ {
+ int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow, i_underline,
+ i_strikeout, i_scale_x, i_scale_y, i_spacing, i_align, i_margin_l, i_margin_r, i_margin_v;
+
+ char psz_temp_stylename[MAX_LINE+1];
+ char psz_temp_fontname[MAX_LINE+1];
+ char psz_temp_color1[MAX_LINE+1];
+ char psz_temp_color2[MAX_LINE+1];
+ char psz_temp_color3[MAX_LINE+1];
+ char psz_temp_color4[MAX_LINE+1];
+
+ if( i_section_type == 1 ) /* V4 */
+ {
+ if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
+ psz_temp_stylename, psz_temp_fontname, &i_font_size,
+ psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
+ &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 16 )
+ {
+ ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
+
+ p_style->psz_stylename = strdup( psz_temp_stylename );
+ p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
+ p_style->font_style.i_font_size = i_font_size;
+
+ ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, NULL );
+ ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, NULL );
+ p_style->font_style.i_outline_color = p_style->font_style.i_shadow_color;
+ p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha = p_style->font_style.i_shadow_alpha = 0x00;
+ p_style->font_style.i_style_flags = 0;
+ if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
+ if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
+
+ if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
+ else if( i_border == 3 )
+ {
+ p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
+ p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
+ p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
+ }
+ p_style->font_style.i_shadow_width = i_shadow;
+ p_style->font_style.i_outline_width = i_outline;
+
+ p_style->i_align = 0;
+ if( i_align == 1 || i_align == 5 || i_align == 9 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+ if( i_align == 3 || i_align == 7 || i_align == 11 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+ if( i_align < 4 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+ else if( i_align < 8 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+
+ p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
+ p_style->i_margin_v = i_margin_v;
+
+ TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
+ }
+ else msg_Warn( p_dec, "SSA v4 styleline parsing failed" );
+ }
+ else if( i_section_type == 2 ) /* V4+ */
+ {
+ /* Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour,
+ Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline,
+ Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
+ */
+ if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%*f,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
+ psz_temp_stylename, psz_temp_fontname, &i_font_size,
+ psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
+ &i_underline, &i_strikeout, &i_scale_x, &i_scale_y, &i_spacing, &i_border, &i_outline,
+ &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 21 )
+ {
+ ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
+
+ p_style->psz_stylename = strdup( psz_temp_stylename );
+ p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
+ p_style->font_style.i_font_size = i_font_size;
+ msg_Dbg( p_dec, psz_temp_color1 );
+ ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, &p_style->font_style.i_font_alpha );
+ ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color, &p_style->font_style.i_outline_alpha );
+ ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, &p_style->font_style.i_shadow_alpha );
+
+ p_style->font_style.i_style_flags = 0;
+ if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
+ if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
+ if( i_underline ) p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
+ if( i_strikeout ) p_style->font_style.i_style_flags |= STYLE_STRIKEOUT;
+ if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
+ else if( i_border == 3 )
+ {
+ p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
+ p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
+ p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
+ }
+ p_style->font_style.i_shadow_width = ( i_border == 1 ) ? i_shadow : 0;
+ p_style->font_style.i_outline_width = ( i_border == 1 ) ? i_outline : 0;
+ p_style->font_style.i_spacing = i_spacing;
+ //p_style->font_style.f_angle = f_angle;
+
+ p_style->i_align = 0;
+ if( i_align == 0x1 || i_align == 0x4 || i_align == 0x1 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+ if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+ if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+ if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+ p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
+ p_style->i_margin_v = i_margin_v;
+
+ /*TODO: Ignored: angle i_scale_x|y (fontscaling), i_encoding */
+ TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
+ }
+ else msg_Dbg( p_dec, "SSA V4+ styleline parsing failed" );
+ }
+ }
+ psz_parser = GotoNextLine( psz_parser );
+ }
+
+eof:
+ if( psz_header ) free( psz_header );
+ return;
+}
+
+/* Function now handles tags which has attribute values, and tries
+ * to deal with &' commands too. It no longer modifies the string
+ * in place, so that the original text can be reused
+ */
+static char *StripTags( char *psz_subtitle )
+{
+ char *psz_text_start;
+
+ psz_text_start = malloc( strlen( psz_subtitle ) + 1 );
+
+ if( psz_text_start != NULL )
+ {
+ char *psz_text = psz_text_start;
+
+ while( *psz_subtitle )
+ {
+ if( *psz_subtitle == '<' )
+ {
+ psz_subtitle += strcspn( psz_subtitle, ">" );
+ }
+ else if( *psz_subtitle == '&' )
+ {
+ if( !strncasecmp( psz_subtitle, "<", 4 ))
+ {
+ *psz_text++ = '<';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ {
+ *psz_text++ = '>';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ {
+ *psz_text++ = '&';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
}
else
{
- psz_new_subtitle[i_text] = psz_buffer_sub[0];
- i_text++;
- psz_buffer_sub++;
+ /* Assume it is just a normal ampersand */
+ *psz_text++ = '&';
}
}
- psz_new_subtitle[i_text] = '\0';
- free( psz_subtitle );
- psz_subtitle = psz_new_subtitle;
- break;
+ else
+ {
+ *psz_text++ = *psz_subtitle;
+ }
+
+ psz_subtitle++;
}
+ *psz_text = '\0';
+ psz_text_start = realloc( psz_text_start, strlen( psz_text_start ) + 1 );
}
+ return psz_text_start;
+}
+
+/* Try to respect any style tags present in the subtitle string. The main
+ * problem here is a lack of adequate specs for the subtitle formats.
+ * SSA/ASS and USF are both detail spec'ed -- but they are handled elsewhere.
+ * SAMI has a detailed spec, but extensive rework is needed in the demux
+ * code to prevent all this style information being excised, as it presently
+ * does.
+ * That leaves the others - none of which were (I guess) originally intended
+ * to be carrying style information. Over time people have used them that way.
+ * In the absence of specifications from which to work, the tags supported
+ * have been restricted to the simple set permitted by the USF DTD, ie. :
+ * Basic: <br>, <i>, <b>, <u>
+ * Extended: <font>
+ * Attributes: face
+ * family
+ * size
+ * color
+ * outline-color
+ * shadow-color
+ * outline-level
+ * shadow-level
+ * back-color
+ * alpha
+ * There is also the further restriction that the subtitle be well-formed
+ * as an XML entity, ie. the HTML sentence:
+ * <b><i>Bold and Italics</b></i>
+ * doesn't qualify because the tags aren't nested one inside the other.
+ * <text> tags are automatically added to the output to ensure
+ * well-formedness.
+ * If the text doesn't qualify for any reason, a NULL string is
+ * returned, and the rendering engine will fall back to the
+ * plain text version of the subtitle.
+ */
+static char *CreateHtmlSubtitle( char *psz_subtitle )
+{
+ char psz_tagStack[ 100 ];
+ size_t i_buf_size = strlen( psz_subtitle ) + 100;
+ char *psz_html_start = malloc( i_buf_size );
+
+ psz_tagStack[ 0 ] = '\0';
+
+ if( psz_html_start != NULL )
+ {
+ char *psz_html = psz_html_start;
+
+ strcpy( psz_html, "<text>" );
+ psz_html += 6;
+
+ while( *psz_subtitle )
+ {
+ if( *psz_subtitle == '\n' )
+ {
+ strcpy( psz_html, "<br/>" );
+ psz_html += 5;
+ psz_subtitle++;
+ }
+ else if( *psz_subtitle == '<' )
+ {
+ if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
+ {
+ strcpy( psz_html, "<br/>" );
+ psz_html += 5;
+ psz_subtitle += 5;
+ }
+ else if( !strncasecmp( psz_subtitle, "<b>", 3 ) )
+ {
+ strcpy( psz_html, "<b>" );
+ strcat( psz_tagStack, "b" );
+ psz_html += 3;
+ psz_subtitle += 3;
+ }
+ else if( !strncasecmp( psz_subtitle, "<i>", 3 ) )
+ {
+ strcpy( psz_html, "<i>" );
+ strcat( psz_tagStack, "i" );
+ psz_html += 3;
+ psz_subtitle += 3;
+ }
+ else if( !strncasecmp( psz_subtitle, "<u>", 3 ) )
+ {
+ strcpy( psz_html, "<u>" );
+ strcat( psz_tagStack, "u" );
+ psz_html += 3;
+ psz_subtitle += 3;
+ }
+ else if( !strncasecmp( psz_subtitle, "<font ", 6 ))
+ {
+ const char *psz_attribs[] = { "face=\"", "family=\"", "size=\"",
+ "color=\"", "outline-color=\"", "shadow-color=\"",
+ "outline-level=\"", "shadow-level=\"", "back-color=\"",
+ "alpha=\"", NULL };
- vout_ShowTextAbsolute( p_vout, psz_subtitle, NULL,
- OSD_ALIGN_BOTTOM | p_sys->i_align,
- i_align_h, i_align_v,
- p_block->i_pts, p_block->i_dts );
+ strcpy( psz_html, "<font " );
+ strcat( psz_tagStack, "f" );
+ psz_html += 6;
+ psz_subtitle += 6;
- free( psz_subtitle );
+ while( *psz_subtitle != '>' )
+ {
+ int k;
+
+ for( k=0; psz_attribs[ k ]; k++ )
+ {
+ int i_len = strlen( psz_attribs[ k ] );
+
+ if( !strncasecmp( psz_subtitle, psz_attribs[ k ], i_len ))
+ {
+ i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
+
+ strncpy( psz_html, psz_subtitle, i_len );
+ psz_html += i_len;
+ psz_subtitle += i_len;
+ break;
+ }
+ }
+ if( psz_attribs[ k ] == NULL )
+ {
+ /* Jump over unrecognised tag */
+ int i_len = strcspn( psz_subtitle, "\"" ) + 1;
+
+ i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
+ psz_subtitle += i_len;
+ }
+ while (*psz_subtitle == ' ')
+ *psz_html++ = *psz_subtitle++;
+ }
+ *psz_html++ = *psz_subtitle++;
+ }
+ else if( !strncmp( psz_subtitle, "</", 2 ))
+ {
+ vlc_bool_t b_match = VLC_FALSE;
+ int i_len = strlen( psz_tagStack ) - 1;
+ char *psz_lastTag = NULL;
+
+ if( i_len >= 0 )
+ {
+ psz_lastTag = psz_tagStack + i_len;
+ i_len = 0;
+
+ switch( *psz_lastTag )
+ {
+ case 'b':
+ b_match = !strncasecmp( psz_subtitle, "</b>", 4 );
+ i_len = 4;
+ break;
+ case 'i':
+ b_match = !strncasecmp( psz_subtitle, "</i>", 4 );
+ i_len = 4;
+ break;
+ case 'u':
+ b_match = !strncasecmp( psz_subtitle, "</u>", 4 );
+ i_len = 4;
+ break;
+ case 'f':
+ b_match = !strncasecmp( psz_subtitle, "</font>", 7 );
+ i_len = 7;
+ break;
+ }
+ }
+ if( ! b_match )
+ {
+ /* Not well formed -- kill everything */
+ free( psz_html_start );
+ psz_html_start = NULL;
+ break;
+ }
+ *psz_lastTag = '\0';
+ strncpy( psz_html, psz_subtitle, i_len );
+ psz_html += i_len;
+ psz_subtitle += i_len;
+ }
+ else
+ {
+ psz_subtitle += strcspn( psz_subtitle, ">" );
+ }
+ }
+ else if( *psz_subtitle == '&' )
+ {
+ if( !strncasecmp( psz_subtitle, "<", 4 ))
+ {
+ strcpy( psz_html, "<" );
+ psz_html += 4;
+ psz_subtitle += 4;
+ }
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ {
+ strcpy( psz_html, ">" );
+ psz_html += 4;
+ psz_subtitle += 4;
+ }
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ {
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle += 5;
+ }
+ else
+ {
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle++;
+ }
+ }
+ else
+ {
+ *psz_html++ = *psz_subtitle++;
+ }
+
+ if( ( size_t )( psz_html - psz_html_start ) > i_buf_size - 10 )
+ {
+ int i_len = psz_html - psz_html_start;
+
+ i_buf_size += 100;
+ psz_html_start = realloc( psz_html_start, i_buf_size );
+ psz_html = psz_html_start + i_len;
+ *psz_html = '\0';
+ }
+ }
+ strcpy( psz_html, "</text>" );
+ psz_html += 7;
+
+ if( psz_tagStack[ 0 ] != '\0' )
+ {
+ /* Not well formed -- kill everything */
+ free( psz_html_start );
+ psz_html_start = NULL;
+ }
+ else if( psz_html_start )
+ {
+ /* Shrink the memory requirements */
+ psz_html_start = realloc( psz_html_start, psz_html - psz_html_start + 1 );
+ }
+ }
+ return psz_html_start;
}
projects / vlc / blobdiff