Commit 75b3e3e7 authored by Jean-Baptiste Kempf's avatar Jean-Baptiste Kempf

Subtitles: same. Reput the correct new modifications.

parent fbfbb777
/*****************************************************************************
* 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;
}
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) );