/*****************************************************************************
- * subsass.c : ASS/SSA subtitles decoder
+ * subsdec.c : text subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
- * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
+ * $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include "subsdec.h"
+/*****************************************************************************
+ * 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 " "
+
+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;
+}
-void ParseSSAString( decoder_t *p_dec,
- char *psz_subtitle,
- subpicture_t *p_spu_in )
+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,
}
}
+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 )
+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 ) )
*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 == '#' )
+ {
+ 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 );
+
+ 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
*****************************************************************************/
-void ParseSSAHeader( decoder_t *p_dec )
+static void ParseSSAHeader( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
char *psz_parser = NULL;
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];
{
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) );
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;
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;
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;
//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;
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, "<", 4 ))
+ {
+ *psz_text++ = '<';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ {
+ *psz_text++ = '>';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ {
+ *psz_text++ = '&';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, """, 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, "<", 4 ))
+ {
+ strcpy( psz_html, "<" );
+ psz_html += 4;
+ psz_subtitle += 4;
+ }
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ {
+ strcpy( psz_html, ">" );
+ psz_html += 4;
+ psz_subtitle += 4;
+ }
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ {
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle += 5;
+ }
+ else
+ {
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle++;
+ }
+ }
+ else
+ {
+ *psz_html = *psz_subtitle;
+ if( 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;
+}
* subsdec.c : text subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
- * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
+ * $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
/*****************************************************************************
* 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 " "
+
+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;
-#include "subsdec.h"
+ 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 char *StripTags ( char * );
-static char *CreateHtmlSubtitle ( char * );
-static int ParseImageAttachments( decoder_t *p_dec );
-
-static int ParsePositionAttributeList( char *, int *, int *, int * );
+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.
return p_spu;
}
-char *GrabAttributeValue( const char *psz_attribute,
+static char *GrabAttributeValue( const char *psz_attribute,
const char *psz_tag_start )
{
if( psz_attribute && psz_tag_start )
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;
return i_mask;
}
-void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
+static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
{
int i_mask = 0;
int i_align;
p_region->i_y = 0;
}
-subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
+static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
subpicture_t *p_spu,
char *psz_subtitle,
int i_len,
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;
fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
/* Find a suitable decoder module */
- if( module_Exists( p_dec, "sdl_image" ) )
+ 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 */
return VLC_SUCCESS;
}
-char* GotoNextLine( char *psz_text )
+/*****************************************************************************
+ * 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 *p_newline = 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( p_newline[0] != '\0' )
+ while ( xml_ReaderRead( p_xml_reader ) == 1 )
{
- if( p_newline[0] == '\n' || p_newline[0] == '\r' )
+ switch ( xml_ReaderNodeType( p_xml_reader ) )
{
- p_newline++;
- while( p_newline[0] == '\n' || p_newline[0] == '\r' )
- p_newline++;
- break;
+ 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 );
+
+ 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;
}
- else p_newline++;
}
- return 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;
}
/* Function now handles tags which has attribute values, and tries
* into a plain-text version, complete with sensible whitespace compaction
*/
-char *CreatePlainText( char *psz_subtitle )
+static char *CreatePlainText( char *psz_subtitle )
{
char *psz_text = StripTags( psz_subtitle );
char *s;
/****************************************************************************
* download and resize image located at psz_url
***************************************************************************/
-subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec,
- subpicture_t *p_spu,
- const char *psz_filename,
- int i_transparent_color )
+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;
/*****************************************************************************
- * subsusf.c : USF subtitles decoder
+ * subsdec.c : text subtitles decoder
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
- * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
+ * $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Samuel Hocevar <sam@zoy.org>
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include "subsdec.h"
+/*****************************************************************************
+ * 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 " "
+
+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 );
+}
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 )
{
{
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 ) )
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 )
}
}
- free( psz_node );
- break;
+ 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 );
}
- if( p_style ) free( p_style );
-}
-
+eof:
+ if( psz_header ) free( psz_header );
+ return;
+}
-subpicture_region_t *ParseUSFString( decoder_t *p_dec,
- char *psz_subtitle,
- subpicture_t *p_spu_in )
+/* 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 )
{
- 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;
+ 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 == '<' )
{
- char *psz_end = NULL;
+ if( strncasecmp( psz_subtitle, "<br/>", 5 ) == 0 )
+ *psz_text++ = '\n';
- if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
- ( !strncasecmp( psz_subtitle, "<text>", 6 )))
+ psz_subtitle += strcspn( psz_subtitle, ">" );
+ }
+ else if( *psz_subtitle == '&' )
+ {
+ if( !strncasecmp( psz_subtitle, "<", 4 ))
{
- psz_end = strcasestr( psz_subtitle, "</text>" );
+ *psz_text++ = '<';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
+ {
+ *psz_text++ = '>';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
+ {
+ *psz_text++ = '&';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else if( !strncasecmp( psz_subtitle, """, 6 ))
+ {
+ *psz_text++ = '\"';
+ psz_subtitle += strcspn( psz_subtitle, ";" );
+ }
+ else
+ {
+ /* Assume it is just a normal ampersand */
+ *psz_text++ = '&';
+ }
+ }
+ else
+ {
+ *psz_text++ = *psz_subtitle;
+ }
- if( psz_end )
- {
- subpicture_region_t *p_text_region;
+ psz_subtitle++;
+ }
+ *psz_text = '\0';
+ psz_text_start = realloc( psz_text_start, strlen( psz_text_start ) + 1 );
- psz_end += strcspn( psz_end, ">" ) + 1;
+ return psz_text_start;
+}
- p_text_region = CreateTextRegion( p_dec,
- p_spu,
- psz_subtitle,
- psz_end - psz_subtitle,
- p_sys->i_align );
+/* 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 );
- if( p_text_region )
- {
- p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
+ psz_tagStack[ 0 ] = '\0';
- if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
- {
- free( p_text_region->psz_html );
- p_text_region->psz_html = NULL;
- }
- }
+ if( psz_html_start != NULL )
+ {
+ char *psz_html = psz_html_start;
- 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;
- }
- }
+ 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(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
- ( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
+ else if( *psz_subtitle == '<' )
{
- psz_end = strcasestr( psz_subtitle, "</karaoke>" );
-
- if( psz_end )
+ if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
{
- subpicture_region_t *p_text_region;
-
- psz_end += strcspn( psz_end, ">" ) + 1;
+ 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 };
- p_text_region = CreateTextRegion( p_dec,
- p_spu,
- psz_subtitle,
- psz_end - psz_subtitle,
- p_sys->i_align );
+ strcpy( psz_html, "<font " );
+ strcat( psz_tagStack, "f" );
+ psz_html += 6;
+ psz_subtitle += 6;
- if( p_text_region )
+ while( *psz_subtitle != '>' )
{
- if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
+ int k;
+
+ for( k=0; psz_attribs[ k ]; k++ )
{
- free( p_text_region->psz_html );
- p_text_region->psz_html = NULL;
+ 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++;
}
- if( !p_region_first )
+ *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 )
{
- p_region_first = p_region_upto = p_text_region;
+ 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;
+ }
}
- else if( p_text_region )
+ if( ! b_match )
{
- p_region_upto->p_next = p_text_region;
- p_region_upto = p_region_upto->p_next;
+ /* 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(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
- ( !strncasecmp( psz_subtitle, "<image>", 7 )))
+ else if( *psz_subtitle == '&' )
{
- 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( !strncasecmp( psz_subtitle, "<", 4 ))
{
- if( *psz_tmp == '#' )
- i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
- free( psz_tmp );
+ strcpy( psz_html, "<" );
+ psz_html += 4;
+ psz_subtitle += 4;
}
- if( psz_content && ( psz_content < psz_end ) )
+ else if( !strncasecmp( psz_subtitle, ">", 4 ))
{
- 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 );
- }
+ strcpy( psz_html, ">" );
+ psz_html += 4;
+ psz_subtitle += 4;
}
-
- if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
-
- if( p_image_region )
+ else if( !strncasecmp( psz_subtitle, "&", 5 ))
{
- SetupPositions( p_image_region, psz_subtitle );
-
- p_image_region->p_next = NULL;
- p_image_region->psz_text = NULL;
- p_image_region->psz_html = NULL;
-
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle += 5;
}
- if( !p_region_first )
+ else
{
- p_region_first = p_region_upto = p_image_region;
+ strcpy( psz_html, "&" );
+ psz_html += 5;
+ psz_subtitle++;
}
- else if( p_image_region )
+ }
+ else
+ {
+ *psz_html = *psz_subtitle;
+ if( psz_html > psz_html_start )
{
- p_region_upto->p_next = p_image_region;
- p_region_upto = p_region_upto->p_next;
+ /* 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( psz_end )
- psz_subtitle = psz_end - 1;
- psz_subtitle += strcspn( 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;
- psz_subtitle++;
+ 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 p_region_first;
+ return psz_html_start;
}
-/*****************************************************************************
- * ParseUSFHeader: Retrieve global formatting information etc
- *****************************************************************************/
-void ParseUSFHeader( decoder_t *p_dec )
+/* 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 )
{
- stream_t *p_sub = NULL;
- xml_t *p_xml = NULL;
- xml_reader_t *p_xml_reader = NULL;
+ char *psz_text = StripTags( psz_subtitle );
+ char *s;
- 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;
+ if( !psz_text )
+ return NULL;
- p_xml = xml_Create( p_dec );
- if( p_xml )
+ s = strpbrk( psz_text, "\t\r\n " );
+ while( s )
{
- p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
- if( p_xml_reader )
+ 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 )
{
- /* Look for Root Node */
- if( xml_ReaderRead( p_xml_reader ) == 1 )
- {
- char *psz_node = xml_ReaderName( p_xml_reader );
+ memmove( &s[1],
+ &s[i_whitespace],
+ strlen( s ) - i_whitespace + 1 );
+ }
+ *s++ = spc;
- if( !strcasecmp( "usfsubtitles", psz_node ) )
- ParseUSFHeaderTags( p_dec, p_xml_reader );
+ s = strpbrk( s, "\t\r\n " );
+ }
+ return psz_text;
+}
- free( psz_node );
- }
+/****************************************************************************
+ * 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;
- xml_ReaderDelete( p_xml, p_xml_reader );
+ 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;
}
- xml_Delete( p_xml );
}
- stream_Delete( p_sub );
-}
+ 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;
+}
projects / vlc / commitdiff