fix possible dvb subtitles segfault

[enigma2.git] / lib / dvb / subtitle.h

diff --git a/lib/dvb/subtitle.h b/lib/dvb/subtitle.h
index 6faad507e6eb582444ad0ad6050b81e95f15ce73..fb9c51a209265c4fb79d1c01c06bc3b165ce28b4 100644 (file)
--- a/lib/dvb/subtitle.h
+++ b/lib/dvb/subtitle.h
@@ -11,17 +11,17 @@ typedef unsigned char __u8;
 struct subtitle_clut_entry
 {
        __u8 Y, Cr, Cb, T;
+       __u8 valid;
 };
 
 struct subtitle_clut
 {
        unsigned char clut_id;
-       unsigned char size_2, size_4, size_8;
        unsigned char CLUT_version_number;
-       struct subtitle_clut_entry entries_2bit[4];
-       struct subtitle_clut_entry entries_4bit[16];
-       struct subtitle_clut_entry entries_8bit[256];
-       struct subtitle_clut *next;
+       subtitle_clut_entry entries_2bit[4];
+       subtitle_clut_entry entries_4bit[16];
+       subtitle_clut_entry entries_8bit[256];
+       subtitle_clut *next;
 };
 
 struct subtitle_page_region
@@ -29,7 +29,7 @@ struct subtitle_page_region
        int region_id;
        int region_horizontal_address;
        int region_vertical_address;
-       struct subtitle_page_region *next;
+       subtitle_page_region *next;
 };
 
 struct subtitle_region_object
@@ -45,7 +45,7 @@ struct subtitle_region_object
        int foreground_pixel_value;
        int background_pixel_value;
 
-       struct subtitle_region_object *next;
+       subtitle_region_object *next;
 };
 
 struct subtitle_region
@@ -54,13 +54,16 @@ struct subtitle_region
        int region_version_number;
        int region_height, region_width;
        enum depth { bpp2=1, bpp4=2, bpp8=3 } region_depth;
+       
        ePtr<gPixmap> region_buffer;
        
        int clut_id;
        
-       struct subtitle_region_object *region_objects;
+       subtitle_region_object *region_objects;
+       
+       subtitle_region *next;
        
-       struct subtitle_region *next;
+       bool committed;
 };
 
 struct subtitle_page
@@ -69,13 +72,13 @@ struct subtitle_page
        time_t page_time_out;
        int page_version_number;
        int pcs_size;
-       struct subtitle_page_region *page_regions;
+       subtitle_page_region *page_regions;
        
-       struct subtitle_region *regions;
+       subtitle_region *regions;
 
-       struct subtitle_clut *cluts;
+       subtitle_clut *cluts;
 
-       struct subtitle_page *next;
+       subtitle_page *next;
 };
 
 struct bitstream
@@ -88,34 +91,43 @@ struct bitstream
 
 struct eDVBSubtitleRegion
 {
-       pts_t show_time;
-       int timeout;
-       ePtr<gPixmap> region;
+       ePtr<gPixmap> m_pixmap;
+       ePoint m_position;
+       eDVBSubtitleRegion &operator=(const eDVBSubtitleRegion &s)
+       {
+               m_pixmap = s.m_pixmap;
+               m_position = s.m_position;
+               return *this;
+       }
+};
+
+struct eDVBSubtitlePage
+{
+       std::list<eDVBSubtitleRegion> m_regions;
+       pts_t m_show_time;
 };
 
 class eDVBSubtitleParser
        :public iObject, public ePESParser, public Object
 {
        DECLARE_REF(eDVBSubtitleParser);
-       struct subtitle_page *pages;
-       int current_clut_id, current_clut_page_id;
-       int screen_width, screen_height;
-       int bbox_left, bbox_top, bbox_right, bbox_bottom;
+       subtitle_page *m_pages;
        ePtr<iDVBPESReader> m_pes_reader;
        ePtr<eConnection> m_read_connection;
-       pts_t show_time;
-       Signal1<void,const eDVBSubtitleRegion&> m_new_subtitle_region;
+       pts_t m_show_time;
+       Signal1<void,const eDVBSubtitlePage&> m_new_subtitle_page;
+       int m_composition_page_id, m_ancillary_page_id;
 public:
        eDVBSubtitleParser(iDVBDemux *demux);
        virtual ~eDVBSubtitleParser();
-       int start(int pid);
-       void connectNewRegion(const Slot1<void, const eDVBSubtitleRegion&> &slot, ePtr<eConnection> &connection);
+       int start(int pid, int composition_page_id, int ancillary_page_id);
+       int stop();
+       void connectNewPage(const Slot1<void, const eDVBSubtitlePage&> &slot, ePtr<eConnection> &connection);
 private:
-       void subtitle_process_line(struct subtitle_page *page, int object_id, int line, __u8 *data, int len);
-       int subtitle_process_pixel_data(struct subtitle_page *page, int object_id, int *linenr, int *linep, __u8 *data);
+       void subtitle_process_line(subtitle_page *page, int object_id, int line, __u8 *data, int len);
+       int subtitle_process_pixel_data(subtitle_page *page, int object_id, int *linenr, int *linep, __u8 *data);
        int subtitle_process_segment(__u8 *segment);
        void subtitle_process_pes(__u8 *buffer, int len);
-       void subtitle_clear_screen();
        void subtitle_redraw_all();
        void subtitle_reset();
        void subtitle_redraw(int page_id);