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dvb output as transcript

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This commit is contained in:
Anshul Maheshwari 2014-07-30 23:00:55 +05:30
parent 5618df35c6
commit a32c8a3b7f
1 changed files with 171 additions and 1 deletions
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172
src/cc_encoders_common.c
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@ -5,6 +5,7 @@
#include "608_spupng.h"
#include "utility.h"
#include "xds.h"
#include "ocr.h"
static const char *sami_header= // TODO: Revise the <!-- comments
"<SAMI>\n\
@ -205,7 +206,176 @@ int write_cc_buffer_as_transcript2(struct eia608_screen *data, struct encoder_ct
dbg_print(CCX_DMT_608, "- - - - - - - - - - - -\r\n");
return wrote_something;
}
int write_cc_bitmap_as_transcript(struct cc_subtitle *sub, struct encoder_ctx *context)
{
struct spupng_t *sp = (struct spupng_t *)context->out->spupng_data;
int x_pos, y_pos, width, height, i;
int x, y, y_off, x_off, ret;
uint8_t *pbuf;
char *filename;
struct cc_bitmap* rect;
png_color *palette = NULL;
png_byte *alpha = NULL;
#ifdef ENABLE_OCR
char*str = NULL;
#endif
int used;
unsigned h1,m1,s1,ms1;
unsigned h2,m2,s2,ms2;
LLONG start_time, end_time;
char timeline[128];
int len = 0;
x_pos = -1;
y_pos = -1;
width = 0;
height = 0;
if (context->prev_start != -1 && (sub->flags & SUB_EOD_MARKER))
{
start_time = context->prev_start + subs_delay;
end_time = sub->start_time - 1;
}
else if ( !(sub->flags & SUB_EOD_MARKER))
{
start_time = sub->start_time + subs_delay;
end_time = sub->end_time - 1;
}
if(sub->nb_data == 0 )
return 0;
rect = sub->data;
for(i = 0;i < sub->nb_data;i++)
{
if(x_pos == -1)
{
x_pos = rect[i].x;
y_pos = rect[i].y;
width = rect[i].w;
height = rect[i].h;
}
else
{
if(x_pos > rect[i].x)
{
width += (x_pos - rect[i].x);
x_pos = rect[i].x;
}
if (rect[i].y < y_pos)
{
height += (y_pos - rect[i].y);
y_pos = rect[i].y;
}
if (rect[i].x + rect[i].w > x_pos + width)
{
width = rect[i].x + rect[i].w - x_pos;
}
if (rect[i].y + rect[i].h > y_pos + height)
{
height = rect[i].y + rect[i].h - y_pos;
}
}
}
if ( sub->flags & SUB_EOD_MARKER )
context->prev_start = sub->start_time;
pbuf = (uint8_t*) malloc(width * height);
memset(pbuf, 0x0, width * height);
for(i = 0;i < sub->nb_data;i++)
{
x_off = rect[i].x - x_pos;
y_off = rect[i].y - y_pos;
for (y = 0; y < rect[i].h; y++)
{
for (x = 0; x < rect[i].w; x++)
pbuf[((y + y_off) * width) + x_off + x] = rect[i].data[0][y * rect[i].w + x];
}
}
palette = (png_color*) malloc(rect[0].nb_colors * sizeof(png_color));
if(!palette)
{
ret = -1;
goto end;
}
alpha = (png_byte*) malloc(rect[0].nb_colors * sizeof(png_byte));
if(!alpha)
{
ret = -1;
goto end;
}
/* TODO do rectangle, wise one color table should not be used for all rectangle */
mapclut_paletee(palette, alpha, (uint32_t *)rect[0].data[1],rect[0].nb_colors);
quantize_map(alpha, palette, pbuf, width*height, 3, rect[0].nb_colors);
#ifdef ENABLE_OCR
str = ocr_bitmap(palette,alpha,pbuf,width,height);
if(str && str[0])
{
if (context->prev_start != -1 || !(sub->flags & SUB_EOD_MARKER))
{
char *token = NULL;
token = strtok(str,"\r\n");
while (token)
{
if (ccx_options.transcript_settings.showStartTime)
{
char buf1[80];
if (ccx_options.transcript_settings.relativeTimestamp)
{
millis_to_date(start_time + subs_delay, buf1);
fdprintf(context->out->fh, "%s|", buf1);
}
else
{
mstotime(start_time + subs_delay, &h1, &m1, &s1, &ms1);
time_t start_time_int = (start_time + subs_delay) / 1000;
int start_time_dec = (start_time + subs_delay) % 1000;
struct tm *start_time_struct = gmtime(&start_time_int);
strftime(buf1, sizeof(buf1), "%Y%m%d%H%M%S", start_time_struct);
fdprintf(context->out->fh, "%s%c%03d|", buf1,ccx_options.millis_separator,start_time_dec);
}
}
if (ccx_options.transcript_settings.showEndTime)
{
char buf2[80];
if (ccx_options.transcript_settings.relativeTimestamp)
{
millis_to_date(end_time, buf2);
fdprintf(context->out->fh, "%s|", buf2);
}
else
{
mstotime(get_fts() + subs_delay, &h2, &m2, &s2, &ms2);
time_t end_time_int = end_time / 1000;
int end_time_dec = end_time % 1000;
struct tm *end_time_struct = gmtime(&end_time_int);
strftime(buf2, sizeof(buf2), "%Y%m%d%H%M%S", end_time_struct);
fdprintf(context->out->fh, "%s%c%03d|", buf2,ccx_options.millis_separator,end_time_dec);
}
}
fdprintf(context->out->fh,"DVB|%s\n",token);
token = strtok(NULL,"\r\n");
}
}
}
#endif
end:
sub->nb_data = 0;
freep(&sub->data);
freep(&palette);
freep(&alpha);
return ret;
}
void try_to_add_end_credits(struct encoder_ctx *context, struct ccx_s_write *out)
{
LLONG window, length, st, end;
@ -400,7 +570,7 @@ int encode_sub(struct encoder_ctx *context, struct cc_subtitle *sub)
try_to_add_start_credits(context, sub->start_time);
wrote_something = write_cc_bitmap_as_smptett(sub, context);
case CCX_OF_TRANSCRIPT:
// wrote_something = write_cc_bitmap_as_transcript(sub, context);
wrote_something = write_cc_bitmap_as_transcript(sub, context);
break;
case CCX_OF_SPUPNG:
wrote_something = write_cc_bitmap_as_spupng(sub, context);