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mp_common: add function which accepts a format string to format playback time

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This commit is contained in:
wm4 2013-03-25 20:32:01 +01:00
parent a87298e501
commit 58cff195e7
2 changed files with 50 additions and 11 deletions
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60
mpvcore/mp_common.c
View File

@ -22,27 +22,65 @@
#include "mpvcore/bstr.h"
#include "mpvcore/mp_common.h"
char *mp_format_time(double time, bool fractions)
#define appendf(ptr, ...) \
do {(*(ptr)) = talloc_asprintf_append_buffer(*(ptr), __VA_ARGS__);} while(0)
// Return a talloc'ed string formatted according to the format string in fmt.
// On error, return NULL.
// Valid formats:
// %H, %h: hour (%H is padded with 0 to two digits)
// %M: minutes from 00-59 (hours are subtracted)
// %m: total minutes (includes hours, unlike %M)
// %S: seconds from 00-59 (minutes and hours are subtracted)
// %s: total seconds (includes hours and minutes)
// %f: like %s, but as float
// %T: milliseconds (000-999)
char *mp_format_time_fmt(const char *fmt, double time)
{
if (time == MP_NOPTS_VALUE)
return talloc_strdup(NULL, "unknown");
char sign[2] = {0};
if (time < 0) {
time = -time;
sign[0] = '-';
}
char *sign = time < 0 ? "-" : "";
time = time < 0 ? -time : time;
long long int itime = time;
long long int h, m, s;
long long int h, m, tm, s;
int ms;
s = itime;
tm = s / 60;
h = s / 3600;
s -= h * 3600;
m = s / 60;
s -= m * 60;
char *res = talloc_asprintf(NULL, "%s%02lld:%02lld:%02lld", sign, h, m, s);
if (fractions)
res = talloc_asprintf_append(res, ".%03d",
(int)((time - itime) * 1000));
ms = (time - itime) * 1000;
char *res = talloc_strdup(NULL, "");
while (*fmt) {
if (fmt[0] == '%') {
fmt++;
switch (fmt[0]) {
case 'h': appendf(&res, "%s%lld", sign, h); break;
case 'H': appendf(&res, "%s%02lld", sign, h); break;
case 'm': appendf(&res, "%s%lld", sign, tm); break;
case 'M': appendf(&res, "%02lld", m); break;
case 's': appendf(&res, "%s%lld", sign, itime); break;
case 'S': appendf(&res, "%02lld", s); break;
case 'T': appendf(&res, "%03d", ms); break;
case '%': appendf(&res, "%s", "%"); break;
default: goto error;
}
fmt++;
} else {
appendf(&res, "%c", *fmt);
fmt++;
}
}
return res;
error:
talloc_free(res);
return NULL;
}
char *mp_format_time(double time, bool fractions)
{
return mp_format_time_fmt(fractions ? "%H:%M:%S.%T" : "%H:%M:%S", time);
}
// Set rc to the union of rc and rc2

1
mpvcore/mp_common.h
View File

@ -49,6 +49,7 @@ extern const char *mplayer_version;
extern const char *mplayer_builddate;
char *mp_format_time(double time, bool fractions);
char *mp_format_time_fmt(const char *fmt, double time);
struct mp_rect {
int x0, y0;