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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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