sub_cc.c

自己移植的linux下的流媒体播放器原代码,支持mms协议,支持ftp和http协议.

/*
 * sub_cc.c - Decoder for Closed Captions
 *
 * This decoder relies on MPlayer's OSD to display subtitles.
 * Be warned that the decoding is somewhat preliminary, though it basically works.
 * 
 * Most notably, only the text information is decoded as of now, discarding color,
 * background and position info (see source below).
 * 
 * by Matteo Giani
 *
 * uses source from the xine closed captions decoder
 */


#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "sub_cc.h"

#include "subreader.h"

#include "libvo/video_out.h"
#include "libvo/sub.h"


#define CC_INPUTBUFFER_SIZE 256

#define CC_MAX_LINE_LENGTH 64

static char chartbl[128];

static subtitle buf1,buf2;
static subtitle *fb,*bb;

static unsigned int cursor_pos=0;

static int inited=0;
static unsigned char inputbuffer[CC_INPUTBUFFER_SIZE];
static unsigned int inputlength;

static void build_char_table(void)
{
  int i;
  /* first the normal ASCII codes */
  for (i = 0; i < 128; i++)
    chartbl[i] = (char) i;
  /* now the special codes */
  chartbl[0x2a] = '