static void
cc_handler (vbi_event * ev,
void * user_data)
{
vbi_page page;
vbi_bool success;
int row;
user_data = user_data;
if (pgno != -1 && ev->ev.caption.pgno != pgno)
return;
/* Fetching & rendering in the handler
is a bad idea, but this is only a test */
success = vbi_fetch_cc_page (vbi, &page, ev->ev.caption.pgno, TRUE);
assert (success);
#if 1 /* optional */
if (abs (page.dirty.roll) > page.rows) {
clear (&page);
} else if (page.dirty.roll == -1) {
roll_up (&page, page.dirty.y0, page.dirty.y1);
} else {
#endif
for (row = page.dirty.y0; row <= page.dirty.y1; ++row)
render (&page, row);
}
vbi_unref_page (&page);
}
static void
reset (void)
{
vbi_page page;
vbi_bool success;
int row;
success = vbi_fetch_cc_page (vbi, &page, pgno, TRUE);
assert (success);
for (row = 0; row <= page.rows; ++row)
render (&page, row);
vbi_unref_page (&page);
}
void
VBIDecoder::eventHandler(vbi_event* event)
{
vbi_page page;
switch (event->type)
{
case VBI_EVENT_CLOSE:
fprintf(fplog, "vbi_event: type=CLOSE\n");
break;
case VBI_EVENT_TTX_PAGE:
// UNTESTED!
fprintf(fplog, "vbi_event: type=TTX_PAGE pgno=%d subno=%d\n",
event->ev.ttx_page.pgno, event->ev.ttx_page.subno);
if (event->ev.ttx_page.pgno != pageno)
{
break;
}
if (!vbi_fetch_vt_page(decoder, &page,
event->ev.ttx_page.pgno,
event->ev.ttx_page.subno,
VBI_WST_LEVEL_3p5, 25, TRUE))
break;
if (checkPageSize)
setTeletext(&page);
checkPage(&page);
vbi_unref_page(&page);
break;
case VBI_EVENT_CAPTION:
if (event->ev.caption.pgno != pageno)
{
if (verbose)
fprintf(fplog, "vbi_event: type=CAPTION pgno=%d curr=%.4f ignored\n",
event->ev.caption.pgno, (double)currTimestamp);
break;
}
if (!vbi_fetch_cc_page(decoder, &page, event->ev.caption.pgno, TRUE))
break;
if (verbose)
{
fprintf(fplog, "vbi_event: type=CAPTION pgno=%d curr=%.4f dirty: y=%d,%d roll=%d\n",
event->ev.caption.pgno, (double)currTimestamp,
page.dirty.y0, page.dirty.y1, page.dirty.roll);
fflush(fplog);
}
if (checkPageSize)
setCaption(&page);
checkPage(&page);
vbi_unref_page(&page);
break;
case VBI_EVENT_NETWORK:
fprintf(fplog, "vbi_event: type=NETWORK\n");
break;
case VBI_EVENT_TRIGGER:
fprintf(fplog, "vbi_event: type=TRIGGER\n");
break;
case VBI_EVENT_ASPECT:
fprintf(fplog, "vbi_event: type=ASPECT\n");
break;
case VBI_EVENT_PROG_INFO:
fprintf(fplog, "vbi_event: type=PROG_INFO\n");
break;
case VBI_EVENT_NETWORK_ID:
fprintf(fplog, "vbi_event: type=NETWORK_ID\n");
break;
default:
fprintf(fplog, "vbi_event: type=%#x\n", event->type);
break;
}
}
