/*****************************************************************************
* subsdec.c : text subtitles decoder
*****************************************************************************
- * Copyright (C) 2000-2001 VideoLAN
+ * 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>
*
* 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.
*****************************************************************************/
/*****************************************************************************
#include <vlc/vout.h>
#include <vlc/decoder.h>
-#include <osd.h>
-
-#if defined(HAVE_ICONV)
-#include <iconv.h>
-#endif
-
+#include "vlc_osd.h"
+#include "vlc_filter.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 ParseSSAString ( decoder_t *, char *, subpicture_t * );
+static void ParseColor ( decoder_t *, char *, int *, int * );
+static void StripTags ( 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", "",
"ISO-8859-1", "CP1252", "MacRoman", "MacIceland","ISO-8859-15", "",
"ISO-8859-2", "CP1250", "MacCentralEurope", "MacCroatian", "MacRomania", "",
"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")};
#define ENCODING_TEXT N_("Subtitles text encoding")
#define ENCODING_LONGTEXT N_("Set the encoding used in text subtitles")
#define ALIGN_TEXT N_("Subtitles justification")
-#define ALIGN_LONGTEXT N_("Set 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_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", 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();
/*****************************************************************************
{
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') &&
p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
(decoder_sys_t *)malloc(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)
if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
{
- msg_Dbg( p_dec, "using character encoding: %s",
+ msg_Dbg( p_dec, "using demux suggested character encoding: %s",
p_dec->fmt_in.subs.psz_encoding );
- p_sys->iconv_handle = iconv_open( "UTF-8",
- p_dec->fmt_in.subs.psz_encoding );
+ if( strcmp( p_dec->fmt_in.subs.psz_encoding, "UTF-8" ) )
+ p_sys->iconv_handle = vlc_iconv_open( "UTF-8", p_dec->fmt_in.subs.psz_encoding );
}
else
{
var_Get( p_dec, "subsdec-encoding", &val );
if( !strcmp( val.psz_string, DEFAULT_NAME ) )
{
- char *psz_charset =(char*)malloc( 100 );
- vlc_current_charset( &psz_charset );
- p_sys->iconv_handle = iconv_open( "UTF-8", psz_charset );
- msg_Dbg( p_dec, "using character encoding: %s", psz_charset );
- free( psz_charset );
+ const char *psz_charset = GetFallbackEncoding();
+
+ p_sys->b_autodetect_utf8 = var_CreateGetBool( p_dec,
+ "subsdec-autodetect-utf8" );
+
+ p_sys->iconv_handle = vlc_iconv_open( "UTF-8", psz_charset );
+ msg_Dbg( p_dec, "using fallback character encoding: %s", psz_charset );
}
- else if( val.psz_string )
+ else if( !strcmp( val.psz_string, "UTF-8" ) )
{
- msg_Dbg( p_dec, "using character encoding: %s", val.psz_string );
- p_sys->iconv_handle = iconv_open( "UTF-8", val.psz_string );
+ msg_Dbg( p_dec, "using enforced character encoding: UTF-8" );
}
-
- if( p_sys->iconv_handle == (iconv_t)-1 )
+ else if( val.psz_string )
{
- msg_Warn( p_dec, "unable to do requested conversion" );
+ msg_Dbg( p_dec, "using enforced character encoding: %s", val.psz_string );
+ p_sys->iconv_handle = vlc_iconv_open( "UTF-8", val.psz_string );
+ if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
+ {
+ msg_Warn( p_dec, "unable to do requested conversion" );
+ }
}
-
if( val.psz_string ) free( val.psz_string );
}
-#else
- 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( 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 );
+ }
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;
- if( !pp_block || *pp_block == NULL )
- {
- return;
- }
+ if( !pp_block || *pp_block == NULL ) return NULL;
- /* Here we are dealing with text subtitles */
- p_vout = vlc_object_find( p_dec, VLC_OBJECT_VOUT, FIND_ANYWHERE );
- if( p_vout )
- {
- ParseText( p_dec, *pp_block, p_vout );
- vlc_object_release( p_vout );
- }
- else
- {
- msg_Warn( p_dec, "couldn't find a video output, trashing subtitle" );
- }
+ p_spu = ParseText( p_dec, *pp_block );
block_Release( *pp_block );
*pp_block = NULL;
+
+ 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' )
+ if( p_block->i_buffer <= 1 || p_block->p_buffer[0] == '\0' )
{
msg_Warn( p_dec, "empty subtitle" );
- return;
+ 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;
+ psz_subtitle = strndup( (const char *)p_block->p_buffer,
+ p_block->i_buffer );
+ if( psz_subtitle == NULL )
+ return NULL;
-#if defined(HAVE_ICONV)
- if( p_sys->iconv_handle != (iconv_t)-1 )
+ if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
+ EnsureUTF8( psz_subtitle );
+ else
{
- char *psz_new_subtitle;
- char *psz_convert_buffer_out;
- 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 )
+
+ if( p_sys->b_autodetect_utf8 )
{
- msg_Warn( p_dec, "Failed to convert subtitle encoding, dropping subtitle.\nTry setting a different character-encoding for the subtitle." );
- free( psz_subtitle );
- return;
+ 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;
+ }
}
- else
+
+ 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->fmt_in.i_codec == 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',' ') )
+ {
+ /* 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 */
+ StripTags( psz_subtitle );
+
+ p_spu->p_region->psz_text = 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 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;
-
- psz_buffer_sub = psz_subtitle;
- for( ;; )
+ ParseSSAString( 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 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;
+
+ 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] == '\\' )
{
- i_comma = 0;
- while( i_comma < 8 &&
- *psz_buffer_sub != '\0' )
+ /* SSA control code */
+ while( psz_buffer_sub[0] != '\0' &&
+ psz_buffer_sub[0] != '}' )
{
- if( *psz_buffer_sub == ',' )
- {
- i_comma++;
- }
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;
+}
+
+/*****************************************************************************
+ * 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( psz_buffer_sub[0] == '\\' && ( psz_buffer_sub[1] =='n' || 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] == '\\' )
+ 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 control code */
- while( psz_buffer_sub[0] != '\0' && psz_buffer_sub[0] != '}' )
+ 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 )
{
- psz_buffer_sub++;
+ 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;
}
- psz_buffer_sub++;
+ 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
+ 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 )
{
- psz_new_subtitle[i_text] = psz_buffer_sub[0];
- i_text++;
- psz_buffer_sub++;
+ 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_new_subtitle[i_text] = '\0';
- free( psz_subtitle );
- psz_subtitle = psz_new_subtitle;
- break;
}
+ psz_parser = GotoNextLine( psz_parser );
}
- 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_length ? p_block->i_pts + p_block->i_length : 0 );
+eof:
+ if( psz_header ) free( psz_header );
+ return;
+}
- free( psz_subtitle );
+static void StripTags( char *psz_text )
+{
+ int i_left_moves = 0;
+ vlc_bool_t b_inside_tag = VLC_FALSE;
+ int i = 0;
+ int i_tag_start = -1;
+ while( psz_text[ i ] )
+ {
+ if( !b_inside_tag )
+ {
+ if( psz_text[ i ] == '<' )
+ {
+ b_inside_tag = VLC_TRUE;
+ i_tag_start = i;
+ }
+ psz_text[ i - i_left_moves ] = psz_text[ i ];
+ }
+ else
+ {
+ if( ( psz_text[ i ] == ' ' ) ||
+ ( psz_text[ i ] == '\t' ) ||
+ ( psz_text[ i ] == '\n' ) ||
+ ( psz_text[ i ] == '\r' ) )
+ {
+ b_inside_tag = VLC_FALSE;
+ i_tag_start = -1;
+ }
+ else if( psz_text[ i ] == '>' )
+ {
+ i_left_moves += i - i_tag_start + 1;
+ i_tag_start = -1;
+ b_inside_tag = VLC_FALSE;
+ }
+ else
+ {
+ psz_text[ i - i_left_moves ] = psz_text[ i ];
+ }
+ }
+ i++;
+ }
+ psz_text[ i - i_left_moves ] = '\0';
}