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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
struct vf_priv_s {
double current;
double step;
int autostart;
int autostep;
unsigned have_step:1;
unsigned print:1;
};
static int put_image(vf_instance_t *vf, mp_image_t *src, double pts)
{
struct vf_priv_s *p = vf->priv;
if (p->print) {
if (pts == MP_NOPTS_VALUE)
mp_msg(MSGT_VFILTER, MSGL_INFO, "PTS: undef\n");
else
mp_msg(MSGT_VFILTER, MSGL_INFO, "PTS: %f\n", pts);
}
if (pts != MP_NOPTS_VALUE && p->autostart != 0) {
p->current = pts;
if (p->autostart > 0)
p->autostart--;
} else if (pts != MP_NOPTS_VALUE && p->autostep > 0) {
p->step = pts - p->current;
p->current = pts;
p->autostep--;
p->have_step = 1;
} else if (p->have_step) {
p->current += p->step;
pts = p->current;
} else {
pts = MP_NOPTS_VALUE;
}
return vf_next_put_image(vf, src, pts);
}
static void uninit(vf_instance_t *vf)
{
free(vf->priv);
}
static int parse_args(struct vf_priv_s *p, const char *args)
{
int pos;
double num, denom = 1;
int iarg;
while (*args != 0) {
pos = 0;
if (sscanf(args, "print%n", &pos) == 0 && pos > 0) {
p->print = 1;
} else if (sscanf(args, "fps=%lf%n/%lf%n", &num, &pos, &denom, &pos) >=
1 && pos > 0) {
p->step = denom / num;
p->have_step = 1;
} else if (sscanf(args, "start=%lf%n", &num, &pos) >= 1 && pos > 0) {
p->current = num;
} else if (sscanf(args, "autostart=%d%n", &iarg, &pos) == 1 && pos > 0) {
p->autostart = iarg;
} else if (sscanf(args, "autofps=%d%n", &iarg, &pos) == 1 && pos > 0) {
p->autostep = iarg;
} else {
mp_msg(MSGT_VFILTER, MSGL_FATAL,
"fixpts: unknown suboption: %s\n", args);
return 0;
}
args += pos;
if (*args == ':')
args++;
}
return 1;
}
static int open(vf_instance_t *vf, char *args)
{
struct vf_priv_s *p;
struct vf_priv_s ptmp = {
.current = 0,
.step = 0,
.autostart = 0,
.autostep = 0,
.have_step = 0,
.print = 0,
};
if (!parse_args(&ptmp, args == NULL ? "" : args))
return 0;
vf->put_image = put_image;
vf->uninit = uninit;
vf->priv = p = malloc(sizeof(struct vf_priv_s));
*p = ptmp;
p->current = -p->step;
return 1;
}
const vf_info_t vf_info_fixpts = {
"Fix presentation timestamps",
"fixpts",
"Nicolas George",
"",
&open,
NULL
};
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