Subsdec: Split the decoder for subsdec / SSA / USF in three files, since the...

Subsdec: Split the decoder for subsdec / SSA / USF in three files, since the code has grown a bit too much in order to improve readability.
Some functions may still need to be renamed and moved from a file to another.
I hope it is done in the correct way, if not, tell me or revert.

configure.ac

@@ -6036,6 +6036,7 @@ AC_CONFIG_FILES([
   modules/codec/cmml/Makefile
   modules/codec/dmo/Makefile
   modules/codec/ffmpeg/Makefile
+  modules/codec/subtitles/Makefile
   modules/codec/spudec/Makefile
   modules/codec/xvmc/Makefile
   modules/control/Makefile

modules/codec/Modules.am

@@ -15,7 +15,6 @@ SOURCES_mpeg_audio = mpeg_audio.c
 SOURCES_libmpeg2 = libmpeg2.c
 SOURCES_rawvideo = rawvideo.c
 SOURCES_quicktime = quicktime.c
-SOURCES_subsdec = subsdec.c
 SOURCES_faad = faad.c
 SOURCES_dvbsub = dvbsub.c
 SOURCES_telx = telx.c

modules/codec/subtitles/Modules.am

+SOURCES_subsdec = subsass.c subsusf.c subsdec.c

modules/codec/subtitles/subsdec.h

+/*****************************************************************************
+ * subsdec.h : text/ASS-SSA/USF subtitles headers
+ *****************************************************************************
+ * Copyright (C) 2000-2006 the VideoLAN team
+ * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
+ *
+ * Authors: Gildas Bazin <gbazin@videolan.org>
+ *          Samuel Hocevar <sam@zoy.org>
+ *          Derk-Jan Hartman <hartman at videolan dot org>
+ *          Bernie Purcell <b dot purcell at adbglobal dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef SUBSDEC_HEADER_H
+#define SUBSDEC_HEADER_H
+
+#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 DEFAULT_NAME "Default"
+#define MAX_LINE 8192
+#define NO_BREAKING_SPACE  "&#160;"
+
+enum
+{
+    ATTRIBUTE_ALIGNMENT = (1 << 0),
+    ATTRIBUTE_X         = (1 << 1),
+    ATTRIBUTE_X_PERCENT = (1 << 2),
+    ATTRIBUTE_Y         = (1 << 3),
+    ATTRIBUTE_Y_PERCENT = (1 << 4),
+};
+
+typedef struct
+{
+    char       *psz_filename;
+    picture_t  *p_pic;
+} image_attach_t;
+
+typedef struct
+{
+    char *          psz_stylename; /* The name of the style, no comma's allowed */
+    text_style_t    font_style;
+    int             i_align;
+    int             i_margin_h;
+    int             i_margin_v;
+    int             i_margin_percent_h;
+    int             i_margin_percent_v;
+}  ssa_style_t;
+
+/*****************************************************************************
+ * decoder_sys_t : decoder descriptor
+ *****************************************************************************/
+struct decoder_sys_t
+{
+    vlc_bool_t          b_ass;                           /* The subs are ASS */
+    int                 i_original_height;
+    int                 i_original_width;
+    int                 i_align;          /* Subtitles alignment on the vout */
+    vlc_iconv_t         iconv_handle;            /* handle to iconv instance */
+    vlc_bool_t          b_autodetect_utf8;
+
+    ssa_style_t         **pp_ssa_styles;
+    int                 i_ssa_styles;
+
+    image_attach_t      **pp_images;
+    int                 i_images;
+};
+
+
+char                *GotoNextLine( char *psz_text );
+void                SetupPositions( subpicture_region_t *, char * );
+
+char                *GrabAttributeValue( const char *, const char * );
+subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu,
+                        const char *psz_filename, int i_transparent_color );
+
+char                *CreatePlainText( char * );
+subpicture_region_t *CreateTextRegion( decoder_t *, subpicture_t *,
+                                        char *, int, int );
+
+void                ParseUSFHeader ( decoder_t * );
+subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
+
+void                ParseSSAHeader ( decoder_t * );
+void                ParseSSAString ( decoder_t *, char *, subpicture_t * );
+
+#endif