int do_cb (struct lib_cc_decode *ctx, unsigned char *cc_block, struct cc_subtitle *sub)
{
unsigned char cc_valid = (*cc_block & 4) >>2;
unsigned char cc_type = *cc_block & 3;
int timeok = 1;
if ( ctx->fix_padding
&& cc_valid==0 && cc_type <= 1 // Only fix NTSC packets
&& cc_block[1]==0 && cc_block[2]==0 )
{
/* Padding */
cc_valid=1;
cc_block[1]=0x80;
cc_block[2]=0x80;
}
if ( ctx->write_format!=CCX_OF_RAW && // In raw we cannot skip padding because timing depends on it
ctx->write_format!=CCX_OF_DVDRAW &&
(cc_block[0]==0xFA || cc_block[0]==0xFC || cc_block[0]==0xFD )
&& (cc_block[1]&0x7F)==0 && (cc_block[2]&0x7F)==0) // CFS: Skip non-data, makes debugging harder.
return 1;
// Print raw data with FTS.
dbg_print(CCX_DMT_CBRAW, "%s %d %02X:%c%c:%02X", print_mstime(fts_now + fts_global),in_xds_mode,
cc_block[0], cc_block[1]&0x7f,cc_block[2]&0x7f, cc_block[2]);
/* In theory the writercwtdata() function could return early and not
* go through the 608/708 cases below. We do that to get accurate
* counts for cb_field1, cb_field2 and cb_708.
* Note that printdata() and do_708() must not be called for
* the CCX_OF_RCWT case. */
if (cc_valid || cc_type==3)
{
ctx->cc_stats[cc_type]++;
switch (cc_type)
{
case 0:
dbg_print(CCX_DMT_CBRAW, " %s .. ..\n", debug_608toASC( cc_block, 0));
current_field=1;
ctx->saw_caption_block = 1;
if (ctx->extraction_start.set &&
get_fts() < ctx->extraction_start.time_in_ms)
timeok = 0;
if (ctx->extraction_end.set &&
get_fts() > ctx->extraction_end.time_in_ms)
{
timeok = 0;
ctx->processed_enough=1;
}
if (timeok)
{
if(ctx->write_format!=CCX_OF_RCWT)
printdata (ctx, cc_block+1,2,0,0, sub);
else
writercwtdata(ctx, cc_block);
}
cb_field1++;
break;
case 1:
dbg_print(CCX_DMT_CBRAW, " .. %s ..\n", debug_608toASC( cc_block, 1));
current_field=2;
ctx->saw_caption_block = 1;
if (ctx->extraction_start.set &&
get_fts() < ctx->extraction_start.time_in_ms)
timeok = 0;
if (ctx->extraction_end.set &&
get_fts() > ctx->extraction_end.time_in_ms)
{
timeok = 0;
ctx->processed_enough=1;
}
if (timeok)
{
if(ctx->write_format!=CCX_OF_RCWT)
printdata (ctx, 0,0,cc_block+1,2, sub);
else
writercwtdata(ctx, cc_block);
}
cb_field2++;
break;
case 2: //EIA-708
// DTVCC packet data
// Fall through
case 3: //EIA-708
dbg_print(CCX_DMT_CBRAW, " .. .. DD\n");
// DTVCC packet start
current_field=3;
if (ctx->extraction_start.set &&
get_fts() < ctx->extraction_start.time_in_ms)
timeok = 0;
if (ctx->extraction_end.set &&
get_fts() > ctx->extraction_end.time_in_ms)
{
timeok = 0;
ctx->processed_enough=1;
}
char temp[4];
temp[0]=cc_valid;
temp[1]=cc_type;
temp[2]=cc_block[1];
temp[3]=cc_block[2];
if (timeok)
{
if(ctx->write_format!=CCX_OF_RCWT)
do_708 (ctx,(const unsigned char *) temp, 4);
else
writercwtdata(ctx, cc_block);
}
cb_708++;
// Check for bytes read
// printf ("Warning: Losing EIA-708 data!\n");
break;
default:
fatal(CCX_COMMON_EXIT_BUG_BUG, "Cannot be reached!");
} // switch (cc_type)
} // cc_valid
else
{
dbg_print(CCX_DMT_CBRAW, " .. .. ..\n");
dbg_print(CCX_DMT_VERBOSE, "Found !(cc_valid || cc_type==3) - ignore this block\n");
}
return 1;
}
int do_cb (unsigned char *cc_block)
{
unsigned char cc_valid = (*cc_block & 4) >>2;
unsigned char cc_type = *cc_block & 3;
int timeok = 1;
if ( fix_padding
&& cc_valid==0 && cc_type <= 1 // Only fix NTSC packets
&& cc_block[1]==0 && cc_block[2]==0 )
{
/* Padding */
cc_valid=1;
cc_block[1]=0x80;
cc_block[2]=0x80;
}
// Print raw data with FTS.
if (debug_cbraw)
printf("%s %02X:%02X:%02X", print_mstime(fts_now + fts_global),
cc_block[0], cc_block[1], cc_block[2]);
/* In theory the writercwtdata() function could return early and not
* go through the 608/708 cases below. We do that to get accurate
* counts for cb_field1, cb_field2 and cb_708.
* Note that printdata() and do_708() must not be called for
* the OF_RCWT case. */
if (cc_valid || cc_type==3)
{
cc_stats[cc_type]++;
switch (cc_type)
{
case 0:
if (debug_cbraw)
printf(" %s .. ..\n", debug_608toASC( cc_block, 0));
current_field=1;
saw_caption_block = 1;
if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
timeok = 0;
if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
{
timeok = 0;
processed_enough=1;
}
if (timeok)
{
if(write_format!=OF_RCWT)
printdata (cc_block+1,2,0,0);
else
writercwtdata(cc_block);
}
cb_field1++;
break;
case 1:
if (debug_cbraw)
printf(" .. %s ..\n", debug_608toASC( cc_block, 1));
current_field=2;
saw_caption_block = 1;
if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
timeok = 0;
if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
{
timeok = 0;
processed_enough=1;
}
if (timeok)
{
if(write_format!=OF_RCWT)
printdata (0,0,cc_block+1,2);
else
writercwtdata(cc_block);
}
cb_field2++;
break;
case 2: //EIA-708
// DTVCC packet data
// Fall through
case 3: //EIA-708
if (debug_cbraw)
printf(" .. .. DD\n");
// DTVCC packet start
current_field=3;
if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
timeok = 0;
if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
{
timeok = 0;
processed_enough=1;
}
char temp[4];
temp[0]=cc_valid;
temp[1]=cc_type;
temp[2]=cc_block[1];
temp[3]=cc_block[2];
if (timeok)
{
if(write_format!=OF_RCWT)
do_708 ((const unsigned char *) temp, 4);
else
writercwtdata(cc_block);
}
cb_708++;
// Check for bytes read
// printf ("Warning: Losing EIA-708 data!\n");
break;
default:
fatal(EXIT_BUG_BUG, "Cannot be reached!");
} // switch (cc_type)
} // cc_valid
else
{
if (debug_cbraw)
printf(" .. .. ..\n");
if (debug_verbose)
printf("Found !(cc_valid || cc_type==3) - ignore this block\n");
}
return 1;
}
