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Commit 75b3e3e7 authored by Jean-Baptiste Kempf's avatar Jean-Baptiste Kempf
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Subtitles: same. Reput the correct new modifications.

parent fbfbb777
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modules/codec/subtitles/subsass.c
View file @ 75b3e3e7
/*****************************************************************************
* subsdec.c : text subtitles decoder
* subsass.c : ASS/SSA subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
* $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
......@@ -24,888 +24,12 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc_vout.h>
#include <vlc_codec.h>
#include <vlc_input.h>
#include <vlc_osd.h>
#include <vlc_filter.h>
#include <vlc_image.h>
#include <vlc_charset.h>
#include <vlc_stream.h>
#include <vlc_xml.h>
#include <errno.h>
#include <string.h>
#define NO_BREAKING_SPACE "&#160;"
enum
{
ATTRIBUTE_ALIGNMENT = (1 << 0),
ATTRIBUTE_X = (1 << 1),
ATTRIBUTE_X_PERCENT = (1 << 2),
ATTRIBUTE_Y = (1 << 3),
ATTRIBUTE_Y_PERCENT = (1 << 4),
};
typedef struct
{
char *psz_filename;
picture_t *p_pic;
} image_attach_t;
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;
int i_margin_percent_h;
int i_margin_percent_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;
ssa_style_t **pp_ssa_styles;
int i_ssa_styles;
image_attach_t **pp_images;
int i_images;
};
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int OpenDecoder ( vlc_object_t * );
static void CloseDecoder ( vlc_object_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_t *, xml_reader_t * );
static void ParseSSAString ( decoder_t *, char *, subpicture_t * );
static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
static void ParseColor ( decoder_t *, char *, int *, int * );
static char *StripTags ( char * );
static char *CreateHtmlSubtitle ( char * );
static char *CreatePlainText( char * );
static int ParseImageAttachments( decoder_t *p_dec );
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
#define DEFAULT_NAME "Default"
#define MAX_LINE 8192
/*****************************************************************************
* Module descriptor.
*****************************************************************************/
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", "",
"ISO-8859-6", "CP1256", "MacArabic", "",
"ISO-8859-7", "CP1253", "MacGreek", "",
"ISO-8859-8", "CP1255", "MacHebrew", "",
"ISO-8859-9", "CP1254", "MacTurkish", "",
"ISO-8859-13", "CP1257", "",
"ISO-2022-JP", "ISO-2022-JP-1", "ISO-2022-JP-2", "EUC-JP", "SHIFT_JIS", "",
"ISO-2022-CN", "ISO-2022-CN-EXT", "EUC-CN", "EUC-TW", "BIG5", "BIG5-HKSCS", "",
"ISO-2022-KR", "EUC-KR", "",
"MacThai", "KOI8-T", "",
"ISO-8859-3", "ISO-8859-4", "ISO-8859-10", "ISO-8859-14", "ISO-8859-16", "",
"CP850", "CP862", "CP866", "CP874", "CP932", "CP949", "CP950", "CP1133", "CP1258", "",
"Macintosh", "",
"UTF-7", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE",
"C99", "JAVA", "UCS-2", "UCS-2BE", "UCS-2LE", "UCS-4", "UCS-4BE", "UCS-4LE", "",
"HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
"Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
"HPROMAN8", "NEXTSTEP" };
/*
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 const 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 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_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_FALSE );
change_integer_list( pi_justification, ppsz_justification_text, 0 );
add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
change_string_list( ppsz_encodings, 0, 0 );
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();
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************
* Tries to launch a decoder and return score so that the interface is able
* to chose.
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
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('u','s','f',' ') &&
p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
{
return VLC_EGENERIC;
}
p_dec->pf_decode_sub = DecodeBlock;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys =
(decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
{
msg_Err( p_dec, "out of memory" );
return VLC_ENOMEM;
}
/* 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;
TAB_INIT( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
TAB_INIT( p_sys->i_images, p_sys->pp_images );
char *psz_charset = NULL;
/* First try demux-specified encoding */
if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
{
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");
}
/* 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)
{
psz_charset = strdup ("UTF-8");
msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
psz_charset ?: "error");
}
if (psz_charset == NULL)
{
free (p_sys);
return VLC_ENOMEM;
}
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);
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;
ParseImageAttachments( p_dec );
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;
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with complete subtitles units.
****************************************************************************/
static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
subpicture_t *p_spu = NULL;
if( !pp_block || *pp_block == NULL ) return NULL;
p_spu = ParseText( p_dec, *pp_block );
block_Release( *pp_block );
*pp_block = NULL;
return p_spu;
}
/*****************************************************************************
* CloseDecoder: clean up the decoder
*****************************************************************************/
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
vlc_iconv_close( p_sys->iconv_handle );
if( p_sys->pp_ssa_styles )
{
int i;
for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
if( !p_sys->pp_ssa_styles[i] )
continue;
if( p_sys->pp_ssa_styles[i]->psz_stylename )
free( p_sys->pp_ssa_styles[i]->psz_stylename );
if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname )
free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
if( p_sys->pp_ssa_styles[i] )
free( p_sys->pp_ssa_styles[i] );
}
TAB_CLEAN( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
}
if( p_sys->pp_images )
{
int i;
for( i = 0; i < p_sys->i_images; i++ )
{
if( !p_sys->pp_images[i] )
continue;
if( p_sys->pp_images[i]->p_pic )
p_sys->pp_images[i]->p_pic->pf_release( p_sys->pp_images[i]->p_pic );
if( p_sys->pp_images[i]->psz_filename )
free( p_sys->pp_images[i]->psz_filename );
free( p_sys->pp_images[i] );
}
TAB_CLEAN( p_sys->i_images, p_sys->pp_images );
}
free( p_sys );
}
/*****************************************************************************
* ParseText: parse an text subtitle packet and send it to the video output
*****************************************************************************/
static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
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 NULL;
}
/* Check validity of packet data */
/* 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, "no subtitle data" );
return NULL;
}
/* Should be resiliant against bad subtitles */
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_Err( p_dec, _("failed to convert subtitle encoding.\n"
"Try manually setting a character-encoding "
"before you open the file.") );
}
}
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 );
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 );
}
}
/* 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->p_region->i_align = 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 );
if( var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
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
{
p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_spu->p_region );
p_spu->p_region = 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 char *GrabAttributeValue( const char *psz_attribute,
const char *psz_tag_start )
{
if( psz_attribute && psz_tag_start )
{
char *psz_tag_end = strchr( psz_tag_start, '>' );
char *psz_found = strcasestr( psz_tag_start, psz_attribute );
if( psz_found )
{
psz_found += strlen( psz_attribute );
if(( *(psz_found++) == '=' ) &&
( *(psz_found++) == '\"' ))
{
if( psz_found < psz_tag_end )
{
int i_len = strcspn( psz_found, "\"" );
return strndup( psz_found, i_len );
}
}
}
}
return NULL;
}
static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
{
ssa_style_t *p_style = NULL;
char *psz_style = GrabAttributeValue( "style", psz_subtitle );
if( psz_style )
{
int i;
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];
}
free( psz_style );
}
return p_style;
}
static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
{
int i_mask = 0;
char *psz_align = GrabAttributeValue( "alignment", psz_subtitle );
char *psz_margin_x = GrabAttributeValue( "horizontal-margin", psz_subtitle );
char *psz_margin_y = GrabAttributeValue( "vertical-margin", psz_subtitle );
/* -- UNSUPPORTED
char *psz_relative = GrabAttributeValue( "relative-to", psz_subtitle );
char *psz_rotate_x = GrabAttributeValue( "rotate-x", psz_subtitle );
char *psz_rotate_y = GrabAttributeValue( "rotate-y", psz_subtitle );
char *psz_rotate_z = GrabAttributeValue( "rotate-z", psz_subtitle );
*/
*i_align = SUBPICTURE_ALIGN_BOTTOM;
*i_x = 0;
*i_y = 0;
if( psz_align )
{
if( !strcasecmp( "TopLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "TopCenter", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP;
else if( !strcasecmp( "TopRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
else if( !strcasecmp( "MiddleLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "MiddleCenter", psz_align ) )
*i_align = 0;
else if( !strcasecmp( "MiddleRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_RIGHT;
else if( !strcasecmp( "BottomLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "BottomCenter", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM;
else if( !strcasecmp( "BottomRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
i_mask |= ATTRIBUTE_ALIGNMENT;
free( psz_align );
}
if( psz_margin_x )
{
*i_x = atoi( psz_margin_x );
if( strchr( psz_margin_x, '%' ) )
i_mask |= ATTRIBUTE_X_PERCENT;
else
i_mask |= ATTRIBUTE_X;
free( psz_margin_x );
}
if( psz_margin_y )
{
*i_y = atoi( psz_margin_y );
if( strchr( psz_margin_y, '%' ) )
i_mask |= ATTRIBUTE_Y_PERCENT;
else
i_mask |= ATTRIBUTE_Y;
free( psz_margin_y );
}
return i_mask;
}
#include "subsdec.h"
static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
{
int i_mask = 0;
int i_align;
int i_x, i_y;
i_mask = ParsePositionAttributeList( psz_subtitle, &i_align, &i_x, &i_y );
if( i_mask & ATTRIBUTE_ALIGNMENT )
p_region->i_align = 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.
*/
if( i_mask & ATTRIBUTE_X )
p_region->i_x = i_x;
else if( i_mask & ATTRIBUTE_X_PERCENT )
p_region->i_x = 0;
if( i_mask & ATTRIBUTE_Y )
p_region->i_y = i_y;
else if( i_mask & ATTRIBUTE_Y_PERCENT )
p_region->i_y = 0;
}
static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
subpicture_t *p_spu,
void ParseSSAString( 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_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_text_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
if( p_text_region != NULL )
{
ssa_style_t *p_style = NULL;
p_text_region->psz_text = NULL;
p_text_region->psz_html = strndup( psz_subtitle, i_len );
if( ! p_text_region->psz_html )
{
msg_Err( p_dec, "out of memory" );
p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_text_region );
return NULL;
}
p_style = ParseStyle( p_sys, p_text_region->psz_html );
if( !p_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_style = p_sys->pp_ssa_styles[i];
}
}
if( p_style )
{
msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename );
p_text_region->p_style = &p_style->font_style;
p_text_region->i_align = p_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_style->i_margin_percent_h;
* p_style->i_margin_percent_v;
*/
p_text_region->i_x = p_style->i_margin_h;
p_text_region->i_y = p_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;
}
static subpicture_region_t *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;
subpicture_region_t *p_region_first = NULL;
subpicture_region_t *p_region_upto = p_region_first;
while( *psz_subtitle )
{
if( *psz_subtitle == '<' )
{
char *psz_end = NULL;
if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
( !strncasecmp( psz_subtitle, "<text>", 6 )))
{
psz_end = strcasestr( psz_subtitle, "</text>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
{
psz_end = strcasestr( psz_subtitle, "</karaoke>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
( !strncasecmp( psz_subtitle, "<image>", 7 )))
{
subpicture_region_t *p_image_region = NULL;
char *psz_end = strcasestr( psz_subtitle, "</image>" );
char *psz_content = strchr( psz_subtitle, '>' );
int i_transparent = -1;
/* If a colorkey parameter is specified, then we have to map
* that index in the picture through as transparent (it is
* required by the USF spec but is also recommended that if the
* creator really wants a transparent colour that they use a
* type like PNG that properly supports it; this goes doubly
* for VLC because the pictures are stored internally in YUV
* and the resulting colour-matching may not produce the
* desired results.)
*/
char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
if( psz_tmp )
{
if( *psz_tmp == '#' )
i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
free( psz_tmp );
}
if( psz_content && ( psz_content < psz_end ) )
{
char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
if( psz_filename )
{
p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
free( psz_filename );
}
}
if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
if( p_image_region )
{
SetupPositions( p_image_region, psz_subtitle );
p_image_region->p_next = NULL;
p_image_region->psz_text = NULL;
p_image_region->psz_html = NULL;
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_image_region;
}
else if( p_image_region )
{
p_region_upto->p_next = p_image_region;
p_region_upto = p_region_upto->p_next;
}
}
if( psz_end )
psz_subtitle = psz_end - 1;
psz_subtitle += strcspn( psz_subtitle, ">" );
}
psz_subtitle++;
}
return p_region_first;
}
static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
subpicture_t *p_spu_in )
{
/* We expect MKV formatted SSA:
* ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
......@@ -928,589 +52,129 @@ static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *
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];
else if( i_comma == 3 )
psz_style_end = &psz_buffer_sub[0];
else if( i_comma == 4 )
i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else if( i_comma == 5 )
i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else 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_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 = strndup( psz_style_start, i_strlen );
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->p_region->i_align = 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->p_region->i_align = 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;
}
static int ParseImageAttachments( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
input_attachment_t **pp_attachments;
int i_attachments_cnt;
int k = 0;
if( VLC_SUCCESS != decoder_GetInputAttachments( p_dec, &pp_attachments, &i_attachments_cnt ))
return VLC_EGENERIC;
for( k = 0; k < i_attachments_cnt; k++ )
{
input_attachment_t *p_attach = pp_attachments[k];
vlc_fourcc_t type = 0;
if( ( !strcmp( p_attach->psz_mime, "image/bmp" ) ) || /* BMP */
( !strcmp( p_attach->psz_mime, "image/x-bmp" ) ) ||
( !strcmp( p_attach->psz_mime, "image/x-bitmap" ) ) ||
( !strcmp( p_attach->psz_mime, "image/x-ms-bmp" ) ) )
{
type = VLC_FOURCC('b','m','p',' ');
}
else if( ( !strcmp( p_attach->psz_mime, "image/x-portable-anymap" ) ) || /* PNM */
( !strcmp( p_attach->psz_mime, "image/x-portable-bitmap" ) ) || /* PBM */
( !strcmp( p_attach->psz_mime, "image/x-portable-graymap" ) ) || /* PGM */
( !strcmp( p_attach->psz_mime, "image/x-portable-pixmap" ) ) ) /* PPM */
{
type = VLC_FOURCC('p','n','m',' ');
}
else if ( !strcmp( p_attach->psz_mime, "image/gif" ) ) /* GIF */
type = VLC_FOURCC('g','i','f',' ');
else if ( !strcmp( p_attach->psz_mime, "image/jpeg" ) ) /* JPG, JPEG */
type = VLC_FOURCC('j','p','e','g');
else if ( !strcmp( p_attach->psz_mime, "image/pcx" ) ) /* PCX */
type = VLC_FOURCC('p','c','x',' ');
else if ( !strcmp( p_attach->psz_mime, "image/png" ) ) /* PNG */
type = VLC_FOURCC('p','n','g',' ');
else if ( !strcmp( p_attach->psz_mime, "image/tiff" ) ) /* TIF, TIFF */
type = VLC_FOURCC('t','i','f','f');
else if ( !strcmp( p_attach->psz_mime, "image/x-tga" ) ) /* TGA */
type = VLC_FOURCC('t','g','a',' ');
else if ( !strcmp( p_attach->psz_mime, "image/x-xpixmap") ) /* XPM */
type = VLC_FOURCC('x','p','m',' ');
if( ( type != 0 ) &&
( p_attach->i_data > 0 ) &&
( p_attach->p_data != NULL ) )
{
picture_t *p_pic = NULL;
image_handler_t *p_image;
p_image = image_HandlerCreate( p_dec );
if( p_image != NULL )
{
block_t *p_block;
p_block = block_New( p_image->p_parent, p_attach->i_data );
if( p_block != NULL )
{
video_format_t fmt_in;
video_format_t fmt_out;
memcpy( p_block->p_buffer, p_attach->p_data, p_attach->i_data );
memset( &fmt_in, 0, sizeof( video_format_t));
memset( &fmt_out, 0, sizeof( video_format_t));
fmt_in.i_chroma = type;
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
/* Find a suitable decoder module */
if( module_Exists( p_dec, "SDL Image decoder" ) )
{
/* ffmpeg thinks it can handle bmp properly but it can't (at least
* not all of them), so use sdl_image if it is available */
vlc_value_t val;
var_Create( p_dec, "codec", VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
val.psz_string = (char*) "sdl_image";
var_Set( p_dec, "codec", val );
}
p_pic = image_Read( p_image, p_block, &fmt_in, &fmt_out );
var_Destroy( p_dec, "codec" );
}
image_HandlerDelete( p_image );
}
if( p_pic )
{
image_attach_t *p_picture = malloc( sizeof(image_attach_t) );
if( p_picture )
{
p_picture->psz_filename = strdup( p_attach->psz_name );
p_picture->p_pic = p_pic;
TAB_APPEND( p_sys->i_images, p_sys->pp_images, p_picture );
}
}
}
vlc_input_attachment_Delete( pp_attachments[ k ] );
}
free( pp_attachments );
return VLC_SUCCESS;
}
/*****************************************************************************
* ParseUSFHeader: Retrieve global formatting information etc
*****************************************************************************/
static void ParseUSFHeader( decoder_t *p_dec )
{
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 )
return;
p_xml = xml_Create( p_dec );
if( p_xml )
{
p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
if( p_xml_reader )
{
/* 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_dec, 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_t *p_dec, xml_reader_t *p_xml_reader )
{
decoder_sys_t *p_sys = p_dec->p_sys;
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 )
break;
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 ) )
{
TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
p_style = NULL;
i_style_level--;
}
break;
}
free( psz_node );
break;
case XML_READER_STARTELEM:
psz_node = xml_ReaderName( p_xml_reader );
if( !psz_node )
break;
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) )
{
i_style_level++;
p_style = calloc( 1, sizeof(ssa_style_t) );
if( ! p_style )
{
msg_Err( p_dec, "out of memory" );
free( psz_node );
break;
}
/* All styles are supposed to default to Default, and then
* one or more settings are over-ridden.
* At the moment this only effects styles defined AFTER
* Default in the XML
*/
int i;
for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
{
ssa_style_t *p_default_style = p_sys->pp_ssa_styles[i];
memcpy( p_style, p_default_style, sizeof( ssa_style_t ) );
p_style->font_style.psz_fontname = strdup( p_style->font_style.psz_fontname );
p_style->psz_stylename = NULL;
}
}
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 );
}
}
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 ) )
{
if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
p_style->font_style.psz_fontname = strdup( psz_value );
}
else if( !strcasecmp( "size", psz_name ) )
{
if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
{
int i_value = atoi( psz_value );
if( ( i_value >= -5 ) && ( i_value <= 5 ) )
p_style->font_style.i_font_size += ( i_value * p_style->font_style.i_font_size ) / 10;
else if( i_value < -5 )
p_style->font_style.i_font_size = - i_value;
else if( i_value > 5 )
p_style->font_style.i_font_size = i_value;
}
else
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
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
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
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);
p_style->font_style.i_font_alpha = (col >> 24) & 0xff;
}
}
else if( !strcasecmp( "outline-color", psz_name ) )
{
if( *psz_value == '#' )
if( *psz_buffer_sub == ',' )
{
unsigned long col = strtol(psz_value+1, NULL, 16);
p_style->font_style.i_outline_color = (col & 0x00ffffff);
p_style->font_style.i_outline_alpha = (col >> 24) & 0xff;
i_comma++;
if( i_comma == 2 )
psz_style_start = &psz_buffer_sub[1];
else if( i_comma == 3 )
psz_style_end = &psz_buffer_sub[0];
else if( i_comma == 4 )
i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else if( i_comma == 5 )
i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else if( i_comma == 6 )
i_margin_v = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
}
psz_buffer_sub++;
}
else if( !strcasecmp( "outline-level", psz_name ) )
if( *psz_buffer_sub == '\0' && i_comma == 8 )
{
p_style->font_style.i_outline_width = atoi( psz_value );
msg_Dbg( p_dec, "couldn't find all fields in this SSA line" );
return;
}
else if( !strcasecmp( "shadow-color", psz_name ) )
psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
i_text = 0;
while( psz_buffer_sub[0] != '\0' )
{
if( *psz_value == '#' )
if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'n' )
{
unsigned long col = strtol(psz_value+1, NULL, 16);
p_style->font_style.i_shadow_color = (col & 0x00ffffff);
p_style->font_style.i_shadow_alpha = (col >> 24) & 0xff;
}
psz_new_subtitle[i_text] = ' ';
i_text++;
psz_buffer_sub += 2;
}
else if( !strcasecmp( "shadow-level", psz_name ) )
else if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'N' )
{
p_style->font_style.i_shadow_width = atoi( psz_value );
psz_new_subtitle[i_text] = '\n';
i_text++;
psz_buffer_sub += 2;
}
else if( !strcasecmp( "back-color", psz_name ) )
else if( psz_buffer_sub[0] == '{' &&
psz_buffer_sub[1] == '\\' )
{
if( *psz_value == '#' )
/* SSA control code */
while( psz_buffer_sub[0] != '\0' &&
psz_buffer_sub[0] != '}' )
{
unsigned long col = strtol(psz_value+1, NULL, 16);
p_style->font_style.i_karaoke_background_color = (col & 0x00ffffff);
p_style->font_style.i_karaoke_background_alpha = (col >> 24) & 0xff;
psz_buffer_sub++;
}
psz_buffer_sub++;
}
else if( !strcasecmp( "spacing", psz_name ) )
else
{
p_style->font_style.i_spacing = atoi( psz_value );
}
}
if( psz_name ) free( psz_name );
if( psz_value ) free( psz_value );
psz_new_subtitle[i_text] = psz_buffer_sub[0];
i_text++;
psz_buffer_sub++;
}
}
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 );
psz_new_subtitle[i_text] = '\0';
if( psz_name && psz_value )
{
if( !strcasecmp( "alignment", psz_name ) )
i_strlen = __MAX( psz_style_end - psz_style_start, 0);
psz_style = strndup( psz_style_start, i_strlen );
for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
if( !strcasecmp( "TopLeft", psz_value ) )
p_style->i_align = SUBPICTURE_ALIGN_TOP | 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 | 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 | 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 | SUBPICTURE_ALIGN_RIGHT;
if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
p_style = p_sys->pp_ssa_styles[i];
}
else if( !strcasecmp( "horizontal-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
if( psz_style ) free( psz_style );
p_spu->p_region->psz_text = psz_new_subtitle;
if( p_style == NULL )
{
p_style->i_margin_h = 0;
p_style->i_margin_percent_h = atoi( psz_value );
p_spu->p_region->i_align = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
p_spu->i_x = p_sys->i_align ? 20 : 0;
p_spu->i_y = 10;
}
else
{
p_style->i_margin_h = atoi( psz_value );
p_style->i_margin_percent_h = 0;
}
}
else if( !strcasecmp( "vertical-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
p_spu->p_region->p_style = &p_style->font_style;
p_spu->p_region->i_align = p_style->i_align;
if( p_style->i_align & SUBPICTURE_ALIGN_LEFT )
{
p_style->i_margin_v = 0;
p_style->i_margin_percent_v = atoi( psz_value );
p_spu->i_x = (i_margin_l) ? i_margin_l : p_style->i_margin_h;
}
else
else if( p_style->i_align & SUBPICTURE_ALIGN_RIGHT )
{
p_style->i_margin_v = atoi( psz_value );
p_style->i_margin_percent_v = 0;
}
}
}
if( psz_name ) free( psz_name );
if( psz_value ) free( psz_value );
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;
}
}
free( psz_node );
break;
}
/*****************************************************************************
* 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 );
}
if( p_style ) free( p_style );
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 )
void ParseSSAHeader( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
char *psz_parser = NULL;
......@@ -1551,8 +215,9 @@ static void ParseSSAHeader( decoder_t *p_dec )
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;
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];
......@@ -1565,8 +230,10 @@ static void ParseSSAHeader( decoder_t *p_dec )
{
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 )
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) );
......@@ -1577,12 +244,14 @@ static void ParseSSAHeader( decoder_t *p_dec )
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_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);
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;
......@@ -1593,12 +262,17 @@ static void ParseSSAHeader( decoder_t *p_dec )
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;
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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
......@@ -1628,9 +302,12 @@ static void ParseSSAHeader( decoder_t *p_dec )
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 );
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;
......@@ -1650,11 +327,16 @@ static void ParseSSAHeader( decoder_t *p_dec )
//p_style->font_style.f_angle = f_angle;
p_style->i_align = 0;
if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 ) 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;
if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 )
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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
......@@ -1676,440 +358,4 @@ eof:
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;
char *psz_text;
psz_text = psz_text_start = malloc( strlen( psz_subtitle ) + 1 );
if( !psz_text_start )
return NULL;
while( *psz_subtitle )
{
if( *psz_subtitle == '<' )
{
if( strncasecmp( psz_subtitle, "<br/>", 5 ) == 0 )
*psz_text++ = '\n';
psz_subtitle += strcspn( psz_subtitle, ">" );
}
else if( *psz_subtitle == '&' )
{
if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
{
*psz_text++ = '<';
psz_subtitle += strcspn( psz_subtitle, ";" );
}
else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
{
*psz_text++ = '>';
psz_subtitle += strcspn( psz_subtitle, ";" );
}
else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
{
*psz_text++ = '&';
psz_subtitle += strcspn( psz_subtitle, ";" );
}
else if( !strncasecmp( psz_subtitle, "&quot;", 6 ))
{
*psz_text++ = '\"';
psz_subtitle += strcspn( psz_subtitle, ";" );
}
else
{
/* Assume it is just a normal ampersand */
*psz_text++ = '&';
}
}
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 };
strcpy( psz_html, "<font " );
strcat( psz_tagStack, "f" );
psz_html += 6;
psz_subtitle += 6;
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, "&lt;", 4 ))
{
strcpy( psz_html, "&lt;" );
psz_html += 4;
psz_subtitle += 4;
}
else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
{
strcpy( psz_html, "&gt;" );
psz_html += 4;
psz_subtitle += 4;
}
else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
{
strcpy( psz_html, "&amp;" );
psz_html += 5;
psz_subtitle += 5;
}
else
{
strcpy( psz_html, "&amp;" );
psz_html += 5;
psz_subtitle++;
}
}
else
{
*psz_html = *psz_subtitle;
if( psz_html > psz_html_start )
{
/* Check for double whitespace */
if((( *psz_html == ' ' ) ||
( *psz_html == '\t' )) &&
(( *(psz_html-1) == ' ' ) ||
( *(psz_html-1) == '\t' )))
{
strcpy( psz_html, NO_BREAKING_SPACE );
psz_html += strlen( NO_BREAKING_SPACE ) - 1;
}
}
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;
}
/* The reverse of the above function - given a HTML subtitle, turn it
* into a plain-text version, complete with sensible whitespace compaction
*/
static char *CreatePlainText( char *psz_subtitle )
{
char *psz_text = StripTags( psz_subtitle );
char *s;
if( !psz_text )
return NULL;
s = strpbrk( psz_text, "\t\r\n " );
while( s )
{
int k;
char spc = ' ';
int i_whitespace = strspn( s, "\t\r\n " );
/* Favour '\n' over other whitespaces - if one of these
* occurs in the whitespace use a '\n' as our value,
* otherwise just use a ' '
*/
for( k = 0; k < i_whitespace; k++ )
if( s[k] == '\n' ) spc = '\n';
if( i_whitespace > 1 )
{
memmove( &s[1],
&s[i_whitespace],
strlen( s ) - i_whitespace + 1 );
}
*s++ = spc;
s = strpbrk( s, "\t\r\n " );
}
return psz_text;
}
/****************************************************************************
* download and resize image located at psz_url
***************************************************************************/
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
{
decoder_sys_t *p_sys = p_dec->p_sys;
subpicture_region_t *p_region;
video_format_t fmt_out;
int k;
picture_t *p_pic = NULL;
for( k = 0; k < p_sys->i_images; k++ )
{
if( p_sys->pp_images &&
!strcmp( p_sys->pp_images[k]->psz_filename, psz_filename ) )
{
p_pic = p_sys->pp_images[k]->p_pic;
break;
}
}
if( !p_pic )
{
msg_Err( p_dec, "Unable to read image %s", psz_filename );
return NULL;
}
/* Display the feed's image */
memset( &fmt_out, 0, sizeof( video_format_t));
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
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 = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt_out );
if( !p_region )
{
msg_Err( p_dec, "cannot allocate SPU region" );
return NULL;
}
vout_CopyPicture( p_dec, &p_region->picture, p_pic );
/* This isn't the best way to do this - if you really want transparency, then
* you're much better off using an image type that supports it like PNG. The
* spec requires this support though.
*/
if( i_transparent_color > 0 )
{
uint8_t i_r = ( i_transparent_color >> 16 ) & 0xff;
uint8_t i_g = ( i_transparent_color >> 8 ) & 0xff;
uint8_t i_b = ( i_transparent_color ) & 0xff;
uint8_t i_y = ( ( ( 66 * i_r + 129 * i_g + 25 * i_b + 128 ) >> 8 ) + 16 );
uint8_t i_u = ( ( -38 * i_r - 74 * i_g + 112 * i_b + 128 ) >> 8 ) + 128 ;
uint8_t i_v = ( ( 112 * i_r - 94 * i_g - 18 * i_b + 128 ) >> 8 ) + 128 ;
if( ( p_region->picture.Y_PITCH == p_region->picture.U_PITCH ) &&
( p_region->picture.Y_PITCH == p_region->picture.V_PITCH ) &&
( p_region->picture.Y_PITCH == p_region->picture.A_PITCH ) )
{
int i_lines = p_region->picture.p[ Y_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ U_PLANE ].i_lines )
i_lines = p_region->picture.p[ U_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ V_PLANE ].i_lines )
i_lines = p_region->picture.p[ V_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ A_PLANE ].i_lines )
i_lines = p_region->picture.p[ A_PLANE ].i_lines;
int i;
for( i = 0; i < p_region->picture.A_PITCH * i_lines; i++ )
{
if(( p_region->picture.Y_PIXELS[ i ] == i_y ) &&
( p_region->picture.U_PIXELS[ i ] == i_u ) &&
( p_region->picture.V_PIXELS[ i ] == i_v ) )
{
p_region->picture.A_PIXELS[ i ] = 1;
}
}
}
}
return p_region;
}
modules/codec/subtitles/subsdec.c
View file @ 75b3e3e7
......@@ -2,7 +2,7 @@
* subsdec.c : text subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
* $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
......@@ -27,66 +27,8 @@
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc_vout.h>
#include <vlc_codec.h>
#include <vlc_input.h>
#include <vlc_osd.h>
#include <vlc_filter.h>
#include <vlc_image.h>
#include <vlc_charset.h>
#include <vlc_stream.h>
#include <vlc_xml.h>
#include <errno.h>
#include <string.h>
#define NO_BREAKING_SPACE "&#160;"
enum
{
ATTRIBUTE_ALIGNMENT = (1 << 0),
ATTRIBUTE_X = (1 << 1),
ATTRIBUTE_X_PERCENT = (1 << 2),
ATTRIBUTE_Y = (1 << 3),
ATTRIBUTE_Y_PERCENT = (1 << 4),
};
typedef struct
{
char *psz_filename;
picture_t *p_pic;
} image_attach_t;
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;
int i_margin_percent_h;
int i_margin_percent_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;
ssa_style_t **pp_ssa_styles;
int i_ssa_styles;
image_attach_t **pp_images;
int i_images;
};
#include "subsdec.h"
/*****************************************************************************
* Local prototypes
......@@ -96,20 +38,11 @@ static void CloseDecoder ( vlc_object_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_t *, xml_reader_t * );
static void ParseSSAString ( decoder_t *, char *, subpicture_t * );
static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
static void ParseColor ( decoder_t *, char *, int *, int * );
static char *StripTags ( char * );
static char *CreateHtmlSubtitle ( char * );
static char *CreatePlainText( char * );
static int ParseImageAttachments( decoder_t *p_dec );
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
#define DEFAULT_NAME "Default"
#define MAX_LINE 8192
static int ParsePositionAttributeList( char *, int *, int *, int * );
/*****************************************************************************
* Module descriptor.
......@@ -536,7 +469,7 @@ static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
return p_spu;
}
static char *GrabAttributeValue( const char *psz_attribute,
char *GrabAttributeValue( const char *psz_attribute,
const char *psz_tag_start )
{
if( psz_attribute && psz_tag_start )
......@@ -581,7 +514,8 @@ static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
return p_style;
}
static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
static int ParsePositionAttributeList( char *psz_subtitle, int *i_align,
int *i_x, int *i_y )
{
int i_mask = 0;
......@@ -646,7 +580,7 @@ static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_
return i_mask;
}
static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
{
int i_mask = 0;
int i_align;
......@@ -672,7 +606,7 @@ static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
p_region->i_y = 0;
}
static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
subpicture_t *p_spu,
char *psz_subtitle,
int i_len,
......@@ -749,319 +683,6 @@ static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
return p_text_region;
}
static subpicture_region_t *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;
subpicture_region_t *p_region_first = NULL;
subpicture_region_t *p_region_upto = p_region_first;
while( *psz_subtitle )
{
if( *psz_subtitle == '<' )
{
char *psz_end = NULL;
if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
( !strncasecmp( psz_subtitle, "<text>", 6 )))
{
psz_end = strcasestr( psz_subtitle, "</text>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
{
psz_end = strcasestr( psz_subtitle, "</karaoke>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
( !strncasecmp( psz_subtitle, "<image>", 7 )))
{
subpicture_region_t *p_image_region = NULL;
char *psz_end = strcasestr( psz_subtitle, "</image>" );
char *psz_content = strchr( psz_subtitle, '>' );
int i_transparent = -1;
/* If a colorkey parameter is specified, then we have to map
* that index in the picture through as transparent (it is
* required by the USF spec but is also recommended that if the
* creator really wants a transparent colour that they use a
* type like PNG that properly supports it; this goes doubly
* for VLC because the pictures are stored internally in YUV
* and the resulting colour-matching may not produce the
* desired results.)
*/
char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
if( psz_tmp )
{
if( *psz_tmp == '#' )
i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
free( psz_tmp );
}
if( psz_content && ( psz_content < psz_end ) )
{
char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
if( psz_filename )
{
p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
free( psz_filename );
}
}
if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
if( p_image_region )
{
SetupPositions( p_image_region, psz_subtitle );
p_image_region->p_next = NULL;
p_image_region->psz_text = NULL;
p_image_region->psz_html = NULL;
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_image_region;
}
else if( p_image_region )
{
p_region_upto->p_next = p_image_region;
p_region_upto = p_region_upto->p_next;
}
}
if( psz_end )
psz_subtitle = psz_end - 1;
psz_subtitle += strcspn( psz_subtitle, ">" );
}
psz_subtitle++;
}
return p_region_first;
}
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];
else if( i_comma == 3 )
psz_style_end = &psz_buffer_sub[0];
else if( i_comma == 4 )
i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else if( i_comma == 5 )
i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else 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_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 = strndup( psz_style_start, i_strlen );
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->p_region->i_align = 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->p_region->i_align = 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;
}
static int ParseImageAttachments( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
......@@ -1135,7 +756,7 @@ static int ParseImageAttachments( decoder_t *p_dec )
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
/* Find a suitable decoder module */
if( module_Exists( p_dec, "SDL Image decoder" ) )
if( module_Exists( p_dec, "sdl_image" ) )
{
/* ffmpeg thinks it can handle bmp properly but it can't (at least
* not all of them), so use sdl_image if it is available */
......@@ -1173,507 +794,22 @@ static int ParseImageAttachments( decoder_t *p_dec )
return VLC_SUCCESS;
}
/*****************************************************************************
* ParseUSFHeader: Retrieve global formatting information etc
*****************************************************************************/
static void ParseUSFHeader( decoder_t *p_dec )
{
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 )
return;
p_xml = xml_Create( p_dec );
if( p_xml )
{
p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
if( p_xml_reader )
{
/* 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_dec, 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_t *p_dec, xml_reader_t *p_xml_reader )
char* GotoNextLine( char *psz_text )
{
decoder_sys_t *p_sys = p_dec->p_sys;
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 )
break;
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 ) )
{
TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
p_style = NULL;
i_style_level--;
}
break;
}
free( psz_node );
break;
case XML_READER_STARTELEM:
psz_node = xml_ReaderName( p_xml_reader );
if( !psz_node )
break;
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) )
{
i_style_level++;
p_style = calloc( 1, sizeof(ssa_style_t) );
if( ! p_style )
{
msg_Err( p_dec, "out of memory" );
free( psz_node );
break;
}
/* All styles are supposed to default to Default, and then
* one or more settings are over-ridden.
* At the moment this only effects styles defined AFTER
* Default in the XML
*/
int i;
for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
{
ssa_style_t *p_default_style = p_sys->pp_ssa_styles[i];
memcpy( p_style, p_default_style, sizeof( ssa_style_t ) );
p_style->font_style.psz_fontname = strdup( p_style->font_style.psz_fontname );
p_style->psz_stylename = NULL;
}
}
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 );
}
}
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 ) )
{
if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
p_style->font_style.psz_fontname = strdup( psz_value );
}
else if( !strcasecmp( "size", psz_name ) )
{
if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
{
int i_value = atoi( psz_value );
if( ( i_value >= -5 ) && ( i_value <= 5 ) )
p_style->font_style.i_font_size += ( i_value * p_style->font_style.i_font_size ) / 10;
else if( i_value < -5 )
p_style->font_style.i_font_size = - i_value;
else if( i_value > 5 )
p_style->font_style.i_font_size = i_value;
}
else
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
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
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
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);
p_style->font_style.i_font_alpha = (col >> 24) & 0xff;
}
}
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);
p_style->font_style.i_outline_alpha = (col >> 24) & 0xff;
}
}
else if( !strcasecmp( "outline-level", psz_name ) )
{
p_style->font_style.i_outline_width = atoi( psz_value );
}
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);
p_style->font_style.i_shadow_alpha = (col >> 24) & 0xff;
}
}
else if( !strcasecmp( "shadow-level", psz_name ) )
{
p_style->font_style.i_shadow_width = atoi( psz_value );
}
else if( !strcasecmp( "back-color", psz_name ) )
{
if( *psz_value == '#' )
{
unsigned long col = strtol(psz_value+1, NULL, 16);
p_style->font_style.i_karaoke_background_color = (col & 0x00ffffff);
p_style->font_style.i_karaoke_background_alpha = (col >> 24) & 0xff;
}
}
else if( !strcasecmp( "spacing", psz_name ) )
{
p_style->font_style.i_spacing = atoi( psz_value );
}
}
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 );
char *p_newline = psz_text;
if( psz_name && psz_value )
{
if( !strcasecmp( "alignment", psz_name ) )
{
if( !strcasecmp( "TopLeft", psz_value ) )
p_style->i_align = SUBPICTURE_ALIGN_TOP | 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 | 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 | 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 | SUBPICTURE_ALIGN_RIGHT;
}
else if( !strcasecmp( "horizontal-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
{
p_style->i_margin_h = 0;
p_style->i_margin_percent_h = atoi( psz_value );
}
else
{
p_style->i_margin_h = atoi( psz_value );
p_style->i_margin_percent_h = 0;
}
}
else if( !strcasecmp( "vertical-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
while( p_newline[0] != '\0' )
{
p_style->i_margin_v = 0;
p_style->i_margin_percent_v = atoi( psz_value );
}
else
if( p_newline[0] == '\n' || p_newline[0] == '\r' )
{
p_style->i_margin_v = atoi( psz_value );
p_style->i_margin_percent_v = 0;
}
}
}
if( psz_name ) free( psz_name );
if( psz_value ) free( psz_value );
}
}
free( psz_node );
p_newline++;
while( p_newline[0] == '\n' || p_newline[0] == '\r' )
p_newline++;
break;
}
else p_newline++;
}
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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
p_style->font_style.i_karaoke_background_color = 0xffffff;
p_style->font_style.i_karaoke_background_alpha = 0xff;
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 == 0x7 ) 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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
p_style->font_style.i_karaoke_background_color = 0xffffff;
p_style->font_style.i_karaoke_background_alpha = 0xff;
/*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;
return p_newline;
}
/* Function now handles tags which has attribute values, and tries
......@@ -1992,7 +1128,7 @@ static char *CreateHtmlSubtitle( char *psz_subtitle )
* into a plain-text version, complete with sensible whitespace compaction
*/
static char *CreatePlainText( char *psz_subtitle )
char *CreatePlainText( char *psz_subtitle )
{
char *psz_text = StripTags( psz_subtitle );
char *s;
......@@ -2030,7 +1166,10 @@ static char *CreatePlainText( char *psz_subtitle )
/****************************************************************************
* download and resize image located at psz_url
***************************************************************************/
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec,
subpicture_t *p_spu,
const char *psz_filename,
int i_transparent_color )
{
decoder_sys_t *p_sys = p_dec->p_sys;
subpicture_region_t *p_region;
......
modules/codec/subtitles/subsusf.c
View file @ 75b3e3e7
/*****************************************************************************
* subsdec.c : text subtitles decoder
* subsusf.c : USF subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
* $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
......@@ -24,1194 +24,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc_vout.h>
#include <vlc_codec.h>
#include <vlc_input.h>
#include <vlc_osd.h>
#include <vlc_filter.h>
#include <vlc_image.h>
#include <vlc_charset.h>
#include <vlc_stream.h>
#include <vlc_xml.h>
#include <errno.h>
#include <string.h>
#define NO_BREAKING_SPACE "&#160;"
enum
{
ATTRIBUTE_ALIGNMENT = (1 << 0),
ATTRIBUTE_X = (1 << 1),
ATTRIBUTE_X_PERCENT = (1 << 2),
ATTRIBUTE_Y = (1 << 3),
ATTRIBUTE_Y_PERCENT = (1 << 4),
};
typedef struct
{
char *psz_filename;
picture_t *p_pic;
} image_attach_t;
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;
int i_margin_percent_h;
int i_margin_percent_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;
ssa_style_t **pp_ssa_styles;
int i_ssa_styles;
image_attach_t **pp_images;
int i_images;
};
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int OpenDecoder ( vlc_object_t * );
static void CloseDecoder ( vlc_object_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_t *, xml_reader_t * );
static void ParseSSAString ( decoder_t *, char *, subpicture_t * );
static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
static void ParseColor ( decoder_t *, char *, int *, int * );
static char *StripTags ( char * );
static char *CreateHtmlSubtitle ( char * );
static char *CreatePlainText( char * );
static int ParseImageAttachments( decoder_t *p_dec );
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
#define DEFAULT_NAME "Default"
#define MAX_LINE 8192
/*****************************************************************************
* Module descriptor.
*****************************************************************************/
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", "",
"ISO-8859-6", "CP1256", "MacArabic", "",
"ISO-8859-7", "CP1253", "MacGreek", "",
"ISO-8859-8", "CP1255", "MacHebrew", "",
"ISO-8859-9", "CP1254", "MacTurkish", "",
"ISO-8859-13", "CP1257", "",
"ISO-2022-JP", "ISO-2022-JP-1", "ISO-2022-JP-2", "EUC-JP", "SHIFT_JIS", "",
"ISO-2022-CN", "ISO-2022-CN-EXT", "EUC-CN", "EUC-TW", "BIG5", "BIG5-HKSCS", "",
"ISO-2022-KR", "EUC-KR", "",
"MacThai", "KOI8-T", "",
"ISO-8859-3", "ISO-8859-4", "ISO-8859-10", "ISO-8859-14", "ISO-8859-16", "",
"CP850", "CP862", "CP866", "CP874", "CP932", "CP949", "CP950", "CP1133", "CP1258", "",
"Macintosh", "",
"UTF-7", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE",
"C99", "JAVA", "UCS-2", "UCS-2BE", "UCS-2LE", "UCS-4", "UCS-4BE", "UCS-4LE", "",
"HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
"Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
"HPROMAN8", "NEXTSTEP" };
/*
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 const 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 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_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_FALSE );
change_integer_list( pi_justification, ppsz_justification_text, 0 );
add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
change_string_list( ppsz_encodings, 0, 0 );
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();
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************
* Tries to launch a decoder and return score so that the interface is able
* to chose.
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
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('u','s','f',' ') &&
p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
{
return VLC_EGENERIC;
}
p_dec->pf_decode_sub = DecodeBlock;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys =
(decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
{
msg_Err( p_dec, "out of memory" );
return VLC_ENOMEM;
}
/* 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;
TAB_INIT( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
TAB_INIT( p_sys->i_images, p_sys->pp_images );
char *psz_charset = NULL;
/* First try demux-specified encoding */
if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
{
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");
}
/* 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)
{
psz_charset = strdup ("UTF-8");
msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
psz_charset ?: "error");
}
if (psz_charset == NULL)
{
free (p_sys);
return VLC_ENOMEM;
}
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);
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;
ParseImageAttachments( p_dec );
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;
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with complete subtitles units.
****************************************************************************/
static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
subpicture_t *p_spu = NULL;
if( !pp_block || *pp_block == NULL ) return NULL;
p_spu = ParseText( p_dec, *pp_block );
block_Release( *pp_block );
*pp_block = NULL;
return p_spu;
}
/*****************************************************************************
* CloseDecoder: clean up the decoder
*****************************************************************************/
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
vlc_iconv_close( p_sys->iconv_handle );
if( p_sys->pp_ssa_styles )
{
int i;
for( i = 0; i < p_sys->i_ssa_styles; i++ )
{
if( !p_sys->pp_ssa_styles[i] )
continue;
if( p_sys->pp_ssa_styles[i]->psz_stylename )
free( p_sys->pp_ssa_styles[i]->psz_stylename );
if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname )
free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
if( p_sys->pp_ssa_styles[i] )
free( p_sys->pp_ssa_styles[i] );
}
TAB_CLEAN( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
}
if( p_sys->pp_images )
{
int i;
for( i = 0; i < p_sys->i_images; i++ )
{
if( !p_sys->pp_images[i] )
continue;
if( p_sys->pp_images[i]->p_pic )
p_sys->pp_images[i]->p_pic->pf_release( p_sys->pp_images[i]->p_pic );
if( p_sys->pp_images[i]->psz_filename )
free( p_sys->pp_images[i]->psz_filename );
free( p_sys->pp_images[i] );
}
TAB_CLEAN( p_sys->i_images, p_sys->pp_images );
}
free( p_sys );
}
/*****************************************************************************
* ParseText: parse an text subtitle packet and send it to the video output
*****************************************************************************/
static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
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 NULL;
}
/* Check validity of packet data */
/* 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, "no subtitle data" );
return NULL;
}
/* Should be resiliant against bad subtitles */
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_Err( p_dec, _("failed to convert subtitle encoding.\n"
"Try manually setting a character-encoding "
"before you open the file.") );
}
}
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 );
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 );
}
}
/* 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->p_region->i_align = 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 );
if( var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
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
{
p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_spu->p_region );
p_spu->p_region = 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 char *GrabAttributeValue( const char *psz_attribute,
const char *psz_tag_start )
{
if( psz_attribute && psz_tag_start )
{
char *psz_tag_end = strchr( psz_tag_start, '>' );
char *psz_found = strcasestr( psz_tag_start, psz_attribute );
if( psz_found )
{
psz_found += strlen( psz_attribute );
if(( *(psz_found++) == '=' ) &&
( *(psz_found++) == '\"' ))
{
if( psz_found < psz_tag_end )
{
int i_len = strcspn( psz_found, "\"" );
return strndup( psz_found, i_len );
}
}
}
}
return NULL;
}
static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
{
ssa_style_t *p_style = NULL;
char *psz_style = GrabAttributeValue( "style", psz_subtitle );
if( psz_style )
{
int i;
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];
}
free( psz_style );
}
return p_style;
}
static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
{
int i_mask = 0;
char *psz_align = GrabAttributeValue( "alignment", psz_subtitle );
char *psz_margin_x = GrabAttributeValue( "horizontal-margin", psz_subtitle );
char *psz_margin_y = GrabAttributeValue( "vertical-margin", psz_subtitle );
/* -- UNSUPPORTED
char *psz_relative = GrabAttributeValue( "relative-to", psz_subtitle );
char *psz_rotate_x = GrabAttributeValue( "rotate-x", psz_subtitle );
char *psz_rotate_y = GrabAttributeValue( "rotate-y", psz_subtitle );
char *psz_rotate_z = GrabAttributeValue( "rotate-z", psz_subtitle );
*/
*i_align = SUBPICTURE_ALIGN_BOTTOM;
*i_x = 0;
*i_y = 0;
if( psz_align )
{
if( !strcasecmp( "TopLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "TopCenter", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP;
else if( !strcasecmp( "TopRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
else if( !strcasecmp( "MiddleLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "MiddleCenter", psz_align ) )
*i_align = 0;
else if( !strcasecmp( "MiddleRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_RIGHT;
else if( !strcasecmp( "BottomLeft", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
else if( !strcasecmp( "BottomCenter", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM;
else if( !strcasecmp( "BottomRight", psz_align ) )
*i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
i_mask |= ATTRIBUTE_ALIGNMENT;
free( psz_align );
}
if( psz_margin_x )
{
*i_x = atoi( psz_margin_x );
if( strchr( psz_margin_x, '%' ) )
i_mask |= ATTRIBUTE_X_PERCENT;
else
i_mask |= ATTRIBUTE_X;
free( psz_margin_x );
}
if( psz_margin_y )
{
*i_y = atoi( psz_margin_y );
if( strchr( psz_margin_y, '%' ) )
i_mask |= ATTRIBUTE_Y_PERCENT;
else
i_mask |= ATTRIBUTE_Y;
free( psz_margin_y );
}
return i_mask;
}
static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
{
int i_mask = 0;
int i_align;
int i_x, i_y;
i_mask = ParsePositionAttributeList( psz_subtitle, &i_align, &i_x, &i_y );
if( i_mask & ATTRIBUTE_ALIGNMENT )
p_region->i_align = 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.
*/
if( i_mask & ATTRIBUTE_X )
p_region->i_x = i_x;
else if( i_mask & ATTRIBUTE_X_PERCENT )
p_region->i_x = 0;
if( i_mask & ATTRIBUTE_Y )
p_region->i_y = i_y;
else if( i_mask & ATTRIBUTE_Y_PERCENT )
p_region->i_y = 0;
}
static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
subpicture_t *p_spu,
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_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_text_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
if( p_text_region != NULL )
{
ssa_style_t *p_style = NULL;
p_text_region->psz_text = NULL;
p_text_region->psz_html = strndup( psz_subtitle, i_len );
if( ! p_text_region->psz_html )
{
msg_Err( p_dec, "out of memory" );
p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_text_region );
return NULL;
}
p_style = ParseStyle( p_sys, p_text_region->psz_html );
if( !p_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_style = p_sys->pp_ssa_styles[i];
}
}
if( p_style )
{
msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename );
p_text_region->p_style = &p_style->font_style;
p_text_region->i_align = p_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_style->i_margin_percent_h;
* p_style->i_margin_percent_v;
*/
p_text_region->i_x = p_style->i_margin_h;
p_text_region->i_y = p_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;
}
static subpicture_region_t *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;
subpicture_region_t *p_region_first = NULL;
subpicture_region_t *p_region_upto = p_region_first;
while( *psz_subtitle )
{
if( *psz_subtitle == '<' )
{
char *psz_end = NULL;
if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
( !strncasecmp( psz_subtitle, "<text>", 6 )))
{
psz_end = strcasestr( psz_subtitle, "</text>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
{
psz_end = strcasestr( psz_subtitle, "</karaoke>" );
if( psz_end )
{
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
if( p_text_region )
{
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
}
}
else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
( !strncasecmp( psz_subtitle, "<image>", 7 )))
{
subpicture_region_t *p_image_region = NULL;
char *psz_end = strcasestr( psz_subtitle, "</image>" );
char *psz_content = strchr( psz_subtitle, '>' );
int i_transparent = -1;
/* If a colorkey parameter is specified, then we have to map
* that index in the picture through as transparent (it is
* required by the USF spec but is also recommended that if the
* creator really wants a transparent colour that they use a
* type like PNG that properly supports it; this goes doubly
* for VLC because the pictures are stored internally in YUV
* and the resulting colour-matching may not produce the
* desired results.)
*/
char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
if( psz_tmp )
{
if( *psz_tmp == '#' )
i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
free( psz_tmp );
}
if( psz_content && ( psz_content < psz_end ) )
{
char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
if( psz_filename )
{
p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
free( psz_filename );
}
}
if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
if( p_image_region )
{
SetupPositions( p_image_region, psz_subtitle );
p_image_region->p_next = NULL;
p_image_region->psz_text = NULL;
p_image_region->psz_html = NULL;
}
if( !p_region_first )
{
p_region_first = p_region_upto = p_image_region;
}
else if( p_image_region )
{
p_region_upto->p_next = p_image_region;
p_region_upto = p_region_upto->p_next;
}
}
if( psz_end )
psz_subtitle = psz_end - 1;
psz_subtitle += strcspn( psz_subtitle, ">" );
}
psz_subtitle++;
}
return p_region_first;
}
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];
else if( i_comma == 3 )
psz_style_end = &psz_buffer_sub[0];
else if( i_comma == 4 )
i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else if( i_comma == 5 )
i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
else 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_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 = strndup( psz_style_start, i_strlen );
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->p_region->i_align = 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->p_region->i_align = 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;
}
static int ParseImageAttachments( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
input_attachment_t **pp_attachments;
int i_attachments_cnt;
int k = 0;
if( VLC_SUCCESS != decoder_GetInputAttachments( p_dec, &pp_attachments, &i_attachments_cnt ))
return VLC_EGENERIC;
for( k = 0; k < i_attachments_cnt; k++ )
{
input_attachment_t *p_attach = pp_attachments[k];
vlc_fourcc_t type = 0;
if( ( !strcmp( p_attach->psz_mime, "image/bmp" ) ) || /* BMP */
( !strcmp( p_attach->psz_mime, "image/x-bmp" ) ) ||
( !strcmp( p_attach->psz_mime, "image/x-bitmap" ) ) ||
( !strcmp( p_attach->psz_mime, "image/x-ms-bmp" ) ) )
{
type = VLC_FOURCC('b','m','p',' ');
}
else if( ( !strcmp( p_attach->psz_mime, "image/x-portable-anymap" ) ) || /* PNM */
( !strcmp( p_attach->psz_mime, "image/x-portable-bitmap" ) ) || /* PBM */
( !strcmp( p_attach->psz_mime, "image/x-portable-graymap" ) ) || /* PGM */
( !strcmp( p_attach->psz_mime, "image/x-portable-pixmap" ) ) ) /* PPM */
{
type = VLC_FOURCC('p','n','m',' ');
}
else if ( !strcmp( p_attach->psz_mime, "image/gif" ) ) /* GIF */
type = VLC_FOURCC('g','i','f',' ');
else if ( !strcmp( p_attach->psz_mime, "image/jpeg" ) ) /* JPG, JPEG */
type = VLC_FOURCC('j','p','e','g');
else if ( !strcmp( p_attach->psz_mime, "image/pcx" ) ) /* PCX */
type = VLC_FOURCC('p','c','x',' ');
else if ( !strcmp( p_attach->psz_mime, "image/png" ) ) /* PNG */
type = VLC_FOURCC('p','n','g',' ');
else if ( !strcmp( p_attach->psz_mime, "image/tiff" ) ) /* TIF, TIFF */
type = VLC_FOURCC('t','i','f','f');
else if ( !strcmp( p_attach->psz_mime, "image/x-tga" ) ) /* TGA */
type = VLC_FOURCC('t','g','a',' ');
else if ( !strcmp( p_attach->psz_mime, "image/x-xpixmap") ) /* XPM */
type = VLC_FOURCC('x','p','m',' ');
if( ( type != 0 ) &&
( p_attach->i_data > 0 ) &&
( p_attach->p_data != NULL ) )
{
picture_t *p_pic = NULL;
image_handler_t *p_image;
p_image = image_HandlerCreate( p_dec );
if( p_image != NULL )
{
block_t *p_block;
p_block = block_New( p_image->p_parent, p_attach->i_data );
if( p_block != NULL )
{
video_format_t fmt_in;
video_format_t fmt_out;
memcpy( p_block->p_buffer, p_attach->p_data, p_attach->i_data );
memset( &fmt_in, 0, sizeof( video_format_t));
memset( &fmt_out, 0, sizeof( video_format_t));
fmt_in.i_chroma = type;
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
/* Find a suitable decoder module */
if( module_Exists( p_dec, "SDL Image decoder" ) )
{
/* ffmpeg thinks it can handle bmp properly but it can't (at least
* not all of them), so use sdl_image if it is available */
vlc_value_t val;
var_Create( p_dec, "codec", VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
val.psz_string = (char*) "sdl_image";
var_Set( p_dec, "codec", val );
}
p_pic = image_Read( p_image, p_block, &fmt_in, &fmt_out );
var_Destroy( p_dec, "codec" );
}
image_HandlerDelete( p_image );
}
if( p_pic )
{
image_attach_t *p_picture = malloc( sizeof(image_attach_t) );
if( p_picture )
{
p_picture->psz_filename = strdup( p_attach->psz_name );
p_picture->p_pic = p_pic;
TAB_APPEND( p_sys->i_images, p_sys->pp_images, p_picture );
}
}
}
vlc_input_attachment_Delete( pp_attachments[ k ] );
}
free( pp_attachments );
return VLC_SUCCESS;
}
/*****************************************************************************
* ParseUSFHeader: Retrieve global formatting information etc
*****************************************************************************/
static void ParseUSFHeader( decoder_t *p_dec )
{
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 )
return;
p_xml = xml_Create( p_dec );
if( p_xml )
{
p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
if( p_xml_reader )
{
/* 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_dec, p_xml_reader );
free( psz_node );
}
xml_ReaderDelete( p_xml, p_xml_reader );
}
xml_Delete( p_xml );
}
stream_Delete( p_sub );
}
#include "subsdec.h"
static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
{
......@@ -1270,7 +83,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
{
i_metadata_level++;
}
else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
else if( !strcasecmp( "resolution", psz_node ) &&
( i_metadata_level == 1) )
{
while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
{
......@@ -1346,7 +160,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
{
if( !strcasecmp( "face", psz_name ) )
{
if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
if( p_style->font_style.psz_fontname )
free( p_style->font_style.psz_fontname );
p_style->font_style.psz_fontname = strdup( psz_value );
}
else if( !strcasecmp( "size", psz_name ) )
......@@ -1356,7 +171,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
int i_value = atoi( psz_value );
if( ( i_value >= -5 ) && ( i_value <= 5 ) )
p_style->font_style.i_font_size += ( i_value * p_style->font_style.i_font_size ) / 10;
p_style->font_style.i_font_size +=
( i_value * p_style->font_style.i_font_size ) / 10;
else if( i_value < -5 )
p_style->font_style.i_font_size = - i_value;
else if( i_value > 5 )
......@@ -1436,680 +252,277 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
}
}
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 | 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 | 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 | 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 | SUBPICTURE_ALIGN_RIGHT;
}
else if( !strcasecmp( "horizontal-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
{
p_style->i_margin_h = 0;
p_style->i_margin_percent_h = atoi( psz_value );
}
else
{
p_style->i_margin_h = atoi( psz_value );
p_style->i_margin_percent_h = 0;
}
}
else if( !strcasecmp( "vertical-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
{
p_style->i_margin_v = 0;
p_style->i_margin_percent_v = atoi( psz_value );
}
else
{
p_style->i_margin_v = atoi( psz_value );
p_style->i_margin_percent_v = 0;
}
}
}
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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
p_style->font_style.i_karaoke_background_color = 0xffffff;
p_style->font_style.i_karaoke_background_alpha = 0xff;
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 == 0x7 ) 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;
p_style->i_margin_percent_h = 0;
p_style->i_margin_percent_v = 0;
p_style->font_style.i_karaoke_background_color = 0xffffff;
p_style->font_style.i_karaoke_background_alpha = 0xff;
/*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;
char *psz_text;
psz_text = psz_text_start = malloc( strlen( psz_subtitle ) + 1 );
if( !psz_text_start )
return NULL;
while( *psz_subtitle )
if( psz_value ) free( psz_value );
}
}
else if( !strcasecmp( "position", psz_node ) && (i_style_level == 2) )
{
if( *psz_subtitle == '<' )
while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
{
if( strncasecmp( psz_subtitle, "<br/>", 5 ) == 0 )
*psz_text++ = '\n';
char *psz_name = xml_ReaderName ( p_xml_reader );
char *psz_value = xml_ReaderValue ( p_xml_reader );
psz_subtitle += strcspn( psz_subtitle, ">" );
}
else if( *psz_subtitle == '&' )
if( psz_name && psz_value )
{
if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
if( !strcasecmp( "alignment", psz_name ) )
{
*psz_text++ = '<';
psz_subtitle += strcspn( psz_subtitle, ";" );
if( !strcasecmp( "TopLeft", psz_value ) )
p_style->i_align = SUBPICTURE_ALIGN_TOP | 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 | 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 | 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 | SUBPICTURE_ALIGN_RIGHT;
}
else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
else if( !strcasecmp( "horizontal-margin", psz_name ) )
{
if( strchr( psz_value, '%' ) )
{
*psz_text++ = '>';
psz_subtitle += strcspn( psz_subtitle, ";" );
p_style->i_margin_h = 0;
p_style->i_margin_percent_h = atoi( psz_value );
}
else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
else
{
*psz_text++ = '&';
psz_subtitle += strcspn( psz_subtitle, ";" );
p_style->i_margin_h = atoi( psz_value );
p_style->i_margin_percent_h = 0;
}
else if( !strncasecmp( psz_subtitle, "&quot;", 6 ))
}
else if( !strcasecmp( "vertical-margin", psz_name ) )
{
*psz_text++ = '\"';
psz_subtitle += strcspn( psz_subtitle, ";" );
if( strchr( psz_value, '%' ) )
{
p_style->i_margin_v = 0;
p_style->i_margin_percent_v = atoi( psz_value );
}
else
{
/* Assume it is just a normal ampersand */
*psz_text++ = '&';
p_style->i_margin_v = atoi( psz_value );
p_style->i_margin_percent_v = 0;
}
}
else
{
*psz_text++ = *psz_subtitle;
}
psz_subtitle++;
if( psz_name ) free( psz_name );
if( psz_value ) free( psz_value );
}
}
*psz_text = '\0';
psz_text_start = realloc( psz_text_start, strlen( psz_text_start ) + 1 );
return psz_text_start;
free( psz_node );
break;
}
}
if( p_style ) free( p_style );
}
/* 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;
subpicture_region_t *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;
subpicture_region_t *p_region_first = NULL;
subpicture_region_t *p_region_upto = p_region_first;
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 ) )
if( *psz_subtitle == '<' )
{
strcpy( psz_html, "<i>" );
strcat( psz_tagStack, "i" );
psz_html += 3;
psz_subtitle += 3;
}
else if( !strncasecmp( psz_subtitle, "<u>", 3 ) )
char *psz_end = NULL;
if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
( !strncasecmp( psz_subtitle, "<text>", 6 )))
{
strcpy( psz_html, "<u>" );
strcat( psz_tagStack, "u" );
psz_html += 3;
psz_subtitle += 3;
}
else if( !strncasecmp( psz_subtitle, "<font ", 6 ))
psz_end = strcasestr( psz_subtitle, "</text>" );
if( psz_end )
{
const char *psz_attribs[] = { "face=\"", "family=\"", "size=\"",
"color=\"", "outline-color=\"", "shadow-color=\"",
"outline-level=\"", "shadow-level=\"", "back-color=\"",
"alpha=\"", NULL };
subpicture_region_t *p_text_region;
strcpy( psz_html, "<font " );
strcat( psz_tagStack, "f" );
psz_html += 6;
psz_subtitle += 6;
psz_end += strcspn( psz_end, ">" ) + 1;
while( *psz_subtitle != '>' )
{
int k;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
for( k=0; psz_attribs[ k ]; k++ )
if( p_text_region )
{
int i_len = strlen( psz_attribs[ k ] );
p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
if( !strncasecmp( psz_subtitle, psz_attribs[ k ], i_len ))
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
strncpy( psz_html, psz_subtitle, i_len );
psz_html += i_len;
psz_subtitle += i_len;
break;
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
}
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;
if( !p_region_first )
{
p_region_first = p_region_upto = p_text_region;
}
else if( p_text_region )
{
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
while (*psz_subtitle == ' ')
*psz_html++ = *psz_subtitle++;
}
*psz_html++ = *psz_subtitle++;
}
else if( !strncmp( psz_subtitle, "</", 2 ))
else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
{
vlc_bool_t b_match = VLC_FALSE;
int i_len = strlen( psz_tagStack ) - 1;
char *psz_lastTag = NULL;
psz_end = strcasestr( psz_subtitle, "</karaoke>" );
if( i_len >= 0 )
if( psz_end )
{
psz_lastTag = psz_tagStack + i_len;
i_len = 0;
subpicture_region_t *p_text_region;
psz_end += strcspn( psz_end, ">" ) + 1;
p_text_region = CreateTextRegion( p_dec,
p_spu,
psz_subtitle,
psz_end - psz_subtitle,
p_sys->i_align );
switch( *psz_lastTag )
if( p_text_region )
{
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 )
if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
{
/* Not well formed -- kill everything */
free( psz_html_start );
psz_html_start = NULL;
break;
free( p_text_region->psz_html );
p_text_region->psz_html = NULL;
}
*psz_lastTag = '\0';
strncpy( psz_html, psz_subtitle, i_len );
psz_html += i_len;
psz_subtitle += i_len;
}
else
if( !p_region_first )
{
psz_subtitle += strcspn( psz_subtitle, ">" );
}
p_region_first = p_region_upto = p_text_region;
}
else if( *psz_subtitle == '&' )
{
if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
else if( p_text_region )
{
strcpy( psz_html, "&lt;" );
psz_html += 4;
psz_subtitle += 4;
p_region_upto->p_next = p_text_region;
p_region_upto = p_region_upto->p_next;
}
else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
{
strcpy( psz_html, "&gt;" );
psz_html += 4;
psz_subtitle += 4;
}
else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
{
strcpy( psz_html, "&amp;" );
psz_html += 5;
psz_subtitle += 5;
}
else
else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
( !strncasecmp( psz_subtitle, "<image>", 7 )))
{
strcpy( psz_html, "&amp;" );
psz_html += 5;
psz_subtitle++;
}
}
else
subpicture_region_t *p_image_region = NULL;
char *psz_end = strcasestr( psz_subtitle, "</image>" );
char *psz_content = strchr( psz_subtitle, '>' );
int i_transparent = -1;
/* If a colorkey parameter is specified, then we have to map
* that index in the picture through as transparent (it is
* required by the USF spec but is also recommended that if the
* creator really wants a transparent colour that they use a
* type like PNG that properly supports it; this goes doubly
* for VLC because the pictures are stored internally in YUV
* and the resulting colour-matching may not produce the
* desired results.)
*/
char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
if( psz_tmp )
{
*psz_html = *psz_subtitle;
if( psz_html > psz_html_start )
if( *psz_tmp == '#' )
i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
free( psz_tmp );
}
if( psz_content && ( psz_content < psz_end ) )
{
/* Check for double whitespace */
if((( *psz_html == ' ' ) ||
( *psz_html == '\t' )) &&
(( *(psz_html-1) == ' ' ) ||
( *(psz_html-1) == '\t' )))
char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
if( psz_filename )
{
strcpy( psz_html, NO_BREAKING_SPACE );
psz_html += strlen( NO_BREAKING_SPACE ) - 1;
}
p_image_region = LoadEmbeddedImage( p_dec, p_spu,
psz_filename, i_transparent );
free( psz_filename );
}
psz_html++;
psz_subtitle++;
}
if( ( size_t )( psz_html - psz_html_start ) > i_buf_size - 10 )
if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
if( p_image_region )
{
int i_len = psz_html - psz_html_start;
SetupPositions( p_image_region, psz_subtitle );
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;
p_image_region->p_next = NULL;
p_image_region->psz_text = NULL;
p_image_region->psz_html = NULL;
if( psz_tagStack[ 0 ] != '\0' )
}
if( !p_region_first )
{
/* Not well formed -- kill everything */
free( psz_html_start );
psz_html_start = NULL;
p_region_first = p_region_upto = p_image_region;
}
else if( psz_html_start )
else if( p_image_region )
{
/* Shrink the memory requirements */
psz_html_start = realloc( psz_html_start, psz_html - psz_html_start + 1 );
p_region_upto->p_next = p_image_region;
p_region_upto = p_region_upto->p_next;
}
}
return psz_html_start;
}
/* The reverse of the above function - given a HTML subtitle, turn it
* into a plain-text version, complete with sensible whitespace compaction
*/
static char *CreatePlainText( char *psz_subtitle )
{
char *psz_text = StripTags( psz_subtitle );
char *s;
if( !psz_text )
return NULL;
s = strpbrk( psz_text, "\t\r\n " );
while( s )
{
int k;
char spc = ' ';
int i_whitespace = strspn( s, "\t\r\n " );
/* Favour '\n' over other whitespaces - if one of these
* occurs in the whitespace use a '\n' as our value,
* otherwise just use a ' '
*/
for( k = 0; k < i_whitespace; k++ )
if( s[k] == '\n' ) spc = '\n';
if( psz_end )
psz_subtitle = psz_end - 1;
if( i_whitespace > 1 )
{
memmove( &s[1],
&s[i_whitespace],
strlen( s ) - i_whitespace + 1 );
psz_subtitle += strcspn( psz_subtitle, ">" );
}
*s++ = spc;
s = strpbrk( s, "\t\r\n " );
psz_subtitle++;
}
return psz_text;
return p_region_first;
}
/****************************************************************************
* download and resize image located at psz_url
***************************************************************************/
static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
/*****************************************************************************
* ParseUSFHeader: Retrieve global formatting information etc
*****************************************************************************/
void ParseUSFHeader( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
subpicture_region_t *p_region;
video_format_t fmt_out;
int k;
picture_t *p_pic = NULL;
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 )
return;
for( k = 0; k < p_sys->i_images; k++ )
p_xml = xml_Create( p_dec );
if( p_xml )
{
if( p_sys->pp_images &&
!strcmp( p_sys->pp_images[k]->psz_filename, psz_filename ) )
p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
if( p_xml_reader )
{
p_pic = p_sys->pp_images[k]->p_pic;
break;
}
}
if( !p_pic )
/* Look for Root Node */
if( xml_ReaderRead( p_xml_reader ) == 1 )
{
msg_Err( p_dec, "Unable to read image %s", psz_filename );
return NULL;
}
/* Display the feed's image */
memset( &fmt_out, 0, sizeof( video_format_t));
char *psz_node = xml_ReaderName( p_xml_reader );
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
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;
if( !strcasecmp( "usfsubtitles", psz_node ) )
ParseUSFHeaderTags( p_dec, p_xml_reader );
p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt_out );
if( !p_region )
{
msg_Err( p_dec, "cannot allocate SPU region" );
return NULL;
free( psz_node );
}
vout_CopyPicture( p_dec, &p_region->picture, p_pic );
/* This isn't the best way to do this - if you really want transparency, then
* you're much better off using an image type that supports it like PNG. The
* spec requires this support though.
*/
if( i_transparent_color > 0 )
{
uint8_t i_r = ( i_transparent_color >> 16 ) & 0xff;
uint8_t i_g = ( i_transparent_color >> 8 ) & 0xff;
uint8_t i_b = ( i_transparent_color ) & 0xff;
uint8_t i_y = ( ( ( 66 * i_r + 129 * i_g + 25 * i_b + 128 ) >> 8 ) + 16 );
uint8_t i_u = ( ( -38 * i_r - 74 * i_g + 112 * i_b + 128 ) >> 8 ) + 128 ;
uint8_t i_v = ( ( 112 * i_r - 94 * i_g - 18 * i_b + 128 ) >> 8 ) + 128 ;
if( ( p_region->picture.Y_PITCH == p_region->picture.U_PITCH ) &&
( p_region->picture.Y_PITCH == p_region->picture.V_PITCH ) &&
( p_region->picture.Y_PITCH == p_region->picture.A_PITCH ) )
{
int i_lines = p_region->picture.p[ Y_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ U_PLANE ].i_lines )
i_lines = p_region->picture.p[ U_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ V_PLANE ].i_lines )
i_lines = p_region->picture.p[ V_PLANE ].i_lines;
if( i_lines > p_region->picture.p[ A_PLANE ].i_lines )
i_lines = p_region->picture.p[ A_PLANE ].i_lines;
int i;
for( i = 0; i < p_region->picture.A_PITCH * i_lines; i++ )
{
if(( p_region->picture.Y_PIXELS[ i ] == i_y ) &&
( p_region->picture.U_PIXELS[ i ] == i_u ) &&
( p_region->picture.V_PIXELS[ i ] == i_v ) )
{
p_region->picture.A_PIXELS[ i ] = 1;
}
}
xml_ReaderDelete( p_xml, p_xml_reader );
}
xml_Delete( p_xml );
}
return p_region;
stream_Delete( p_sub );
}
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