mirror of https://github.com/mpv-player/mpv
Enable ASS/SSA subtitle support in mencoder
Enable ASS/SSA rendering through libass in mencoder. This duplicates a bit of code (to parse font attachments, for example). Additionally, add a filter "fixpts" that generates PTS, simulating fixed fps. PTS generated by this filter are then used for subtitle timing. Original patch by Nicolas George. (nicolas.george normalesup.org) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30849 b3059339-0415-0410-9bf9-f77b7e298cf2
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fbb74e16a3
commit
ca7cbc0724
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@ -7500,6 +7500,48 @@ Larger radius makes for smoother gradients, but also prevents the filter
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from modifying pixels near detailed regions (default: 16).
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.RE
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.
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.TP
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.B fixpts[=options]
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Fixes the presentation timestamps (PTS) of the frames.
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By default, the PTS passed to the next filter is dropped, but the following
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options can change that:
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.RSs
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.IPs print
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Print the incoming PTS.
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.IPs fps=<fps>
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Specify a frame per second value.
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.IPs start=<pts>
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Specify an initial value for the PTS.
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.IPs autostart=<n>
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Uses the
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.IR n th
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incoming PTS as the initial PTS.
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All previous pts are kept, so setting a huge value or \-1 keeps the PTS
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intact.
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.IPs autofps=<n>
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Uses the
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.IR n th
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incoming PTS after the end of autostart to determine the framerate.
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.RE
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.sp 1
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.RS
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.I EXAMPLE:
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.RE
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.PD 0
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.RSs
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.IPs "\-vf fixpts=fps=24000/1001,ass,fixpts"
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Generates a new sequence of PTS, uses it for ASS subtitles, then drops it.
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Generating a new sequence is useful when the timestamps are reset during the
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program; this is frequent on DVDs.
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Dropping it may be necessary to avoid confusing encoders.
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.RE
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.PD 1
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.sp 1
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.RS
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.I NOTE:
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Using this filter together with any sort of seeking (including -ss and EDLs)
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may make demons fly out of your nose.
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.RE
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.
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.
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.SH "GENERAL ENCODING OPTIONS (MENCODER ONLY)"
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1
Makefile
1
Makefile
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@ -430,6 +430,7 @@ SRCS_COMMON = asxparser.c \
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libmpcodecs/vf_field.c \
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libmpcodecs/vf_fil.c \
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libmpcodecs/vf_filmdint.c \
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libmpcodecs/vf_fixpts.c \
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libmpcodecs/vf_flip.c \
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libmpcodecs/vf_format.c \
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libmpcodecs/vf_framestep.c \
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@ -118,6 +118,7 @@ extern const vf_info_t vf_info_yadif;
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extern const vf_info_t vf_info_blackframe;
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extern const vf_info_t vf_info_geq;
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extern const vf_info_t vf_info_ow;
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extern const vf_info_t vf_info_fixpts;
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// list of available filters:
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static const vf_info_t* const filter_list[]={
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@ -211,6 +212,7 @@ static const vf_info_t* const filter_list[]={
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&vf_info_yadif,
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&vf_info_blackframe,
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&vf_info_ow,
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&vf_info_fixpts,
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NULL
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};
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@ -0,0 +1,137 @@
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/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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struct vf_priv_s {
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double current;
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double step;
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int autostart;
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int autostep;
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unsigned have_step:1;
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unsigned print:1;
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};
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static int put_image(vf_instance_t *vf, mp_image_t *src, double pts)
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{
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struct vf_priv_s *p = vf->priv;
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if (p->print) {
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if (pts == MP_NOPTS_VALUE)
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mp_msg(MSGT_VFILTER, MSGL_INFO, "PTS: undef\n");
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else
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mp_msg(MSGT_VFILTER, MSGL_INFO, "PTS: %f\n", pts);
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}
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if (pts != MP_NOPTS_VALUE && p->autostart != 0) {
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p->current = pts;
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if (p->autostart > 0)
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p->autostart--;
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} else if (pts != MP_NOPTS_VALUE && p->autostep > 0) {
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p->step = pts - p->current;
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p->current = pts;
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p->autostep--;
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p->have_step = 1;
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} else if (p->have_step) {
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p->current += p->step;
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pts = p->current;
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} else {
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pts = MP_NOPTS_VALUE;
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}
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return vf_next_put_image(vf, src, pts);
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}
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static void uninit(vf_instance_t *vf)
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{
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free(vf->priv);
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}
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static int parse_args(struct vf_priv_s *p, const char *args)
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{
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int pos;
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double num, denom = 1;
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int iarg;
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while (*args != 0) {
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pos = 0;
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if (sscanf(args, "print%n", &pos) == 0 && pos > 0) {
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p->print = 1;
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} else if (sscanf(args, "fps=%lf%n/%lf%n", &num, &pos, &denom, &pos) >=
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1 && pos > 0) {
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p->step = denom / num;
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p->have_step = 1;
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} else if (sscanf(args, "start=%lf%n", &num, &pos) >= 1 && pos > 0) {
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p->current = num;
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} else if (sscanf(args, "autostart=%d%n", &iarg, &pos) == 1 && pos > 0) {
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p->autostart = iarg;
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} else if (sscanf(args, "autofps=%d%n", &iarg, &pos) == 1 && pos > 0) {
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p->autostep = iarg;
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} else {
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mp_msg(MSGT_VFILTER, MSGL_FATAL,
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"fixpts: unknown suboption: %s\n", args);
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return 0;
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}
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args += pos;
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if (*args == ':')
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args++;
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}
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return 1;
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}
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static int open(vf_instance_t *vf, char *args)
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{
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struct vf_priv_s *p;
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struct vf_priv_s ptmp = {
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.current = 0,
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.step = 0,
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.autostart = 0,
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.autostep = 0,
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.have_step = 0,
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.print = 0,
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};
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if (!parse_args(&ptmp, args == NULL ? "" : args))
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return 0;
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vf->put_image = put_image;
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vf->uninit = uninit;
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vf->priv = p = malloc(sizeof(struct vf_priv_s));
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*p = ptmp;
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p->current = -p->step;
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return 1;
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}
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vf_info_t vf_info_fixpts = {
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"Fix presentation timestamps",
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"fixpts",
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"Nicolas George",
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"",
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&open,
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NULL
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};
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129
mencoder.c
129
mencoder.c
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@ -370,6 +370,46 @@ static void exit_sighandler(int x){
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static muxer_t* muxer=NULL;
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void add_subtitles(char *filename, float fps, int silent)
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{
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sub_data *subd;
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#ifdef CONFIG_ASS
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ass_track_t *asst = 0;
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#endif
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if (!filename) return;
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subd = sub_read_file(filename, fps);
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#ifdef CONFIG_ASS
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if (ass_enabled)
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#ifdef CONFIG_ICONV
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asst = ass_read_file(ass_library, filename, sub_cp);
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#else
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asst = ass_read_file(ass_library, filename, 0);
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#endif
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if (ass_enabled && subd && !asst)
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asst = ass_read_subdata(ass_library, subd, fps);
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if (!asst && !subd && !silent)
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#else
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if (!subd && !silent)
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#endif
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mp_msg(MSGT_CPLAYER, MSGL_ERR, MSGTR_CantLoadSub,
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filename_recode(filename));
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#ifdef CONFIG_ASS
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if (!asst && !subd) return;
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ass_track = asst;
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#else
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if (!subd) return;
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#endif
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_FILE_SUB_FILENAME=%s\n",
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filename_recode(filename));
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subdata = subd;
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}
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void print_wave_header(WAVEFORMATEX *h, int verbose_level);
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int main(int argc,char* argv[]){
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stream_t* stream=NULL;
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m_entry_set_options(mconfig,&filelist[curfile]);
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filename = filelist[curfile].name;
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#ifdef CONFIG_ASS
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ass_library = ass_init();
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#endif
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if(!filename){
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mp_msg(MSGT_CPLAYER, MSGL_FATAL, MSGTR_MissingFilename);
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mencoder_exit(1,NULL);
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@ -658,26 +702,6 @@ if(sh_audio && (out_audio_codec || seek_to_sec || !sh_audio->wf || playback_spee
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}
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}
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// after reading video params we should load subtitles because
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// we know fps so now we can adjust subtitles time to ~6 seconds AST
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// check .sub
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// current_module="read_subtitles_file";
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if(sub_name && sub_name[0]){
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subdata=sub_read_file(sub_name[0], sh_video->fps);
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if(!subdata) mp_msg(MSGT_CPLAYER,MSGL_ERR,MSGTR_CantLoadSub,sub_name[0]);
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} else
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if(sub_auto && filename) { // auto load sub file ...
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char **tmp = NULL;
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int i = 0;
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char *psub = get_path( "sub/" );
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tmp = sub_filenames((psub ? psub : ""), filename);
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free(psub);
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subdata=sub_read_file(tmp[0], sh_video->fps);
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while (tmp[i])
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free(tmp[i++]);
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free(tmp);
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}
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// set up video encoder:
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if (!curfile) { // curfile is non zero when a second file is opened
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ve = sh_video->vfilter;
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} else sh_video->vfilter = ve;
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// append 'expand' filter, it fixes stride problems and renders osd:
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#ifdef CONFIG_ASS
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if (auto_expand && !ass_enabled) { /* we do not want both */
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#else
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if (auto_expand) {
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#endif
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char* vf_args[] = { "osd", "1", NULL };
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sh_video->vfilter=vf_open_filter(sh_video->vfilter,"expand",vf_args);
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}
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#ifdef CONFIG_ASS
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if(ass_enabled) {
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int i;
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int insert = 1;
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if (vf_settings)
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for (i = 0; vf_settings[i].name; ++i)
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if (strcmp(vf_settings[i].name, "ass") == 0) {
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insert = 0;
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break;
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}
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if (insert) {
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extern vf_info_t vf_info_ass;
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vf_info_t* libass_vfs[] = {&vf_info_ass, NULL};
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char* vf_arg[] = {"auto", "1", NULL};
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vf_instance_t* vf_ass = vf_open_plugin(libass_vfs,sh_video->vfilter,"ass",vf_arg);
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if (vf_ass)
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sh_video->vfilter=(void*)vf_ass;
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else
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mp_msg(MSGT_CPLAYER,MSGL_ERR, "ASS: cannot add video filter\n");
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}
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if (ass_library) {
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for (i = 0; i < demuxer->num_attachments; ++i) {
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demux_attachment_t* att = demuxer->attachments + i;
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if (extract_embedded_fonts &&
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att->name && att->type && att->data && att->data_size &&
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(strcmp(att->type, "application/x-truetype-font") == 0 ||
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strcmp(att->type, "application/x-font") == 0))
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ass_add_font(ass_library, att->name, att->data, att->data_size);
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}
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}
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}
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#endif
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sh_video->vfilter=append_filters(sh_video->vfilter);
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#ifdef CONFIG_ASS
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if (ass_enabled)
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((vf_instance_t *)sh_video->vfilter)->control(sh_video->vfilter, VFCTRL_INIT_EOSD, ass_library);
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#endif
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// after reading video params we should load subtitles because
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// we know fps so now we can adjust subtitles time to ~6 seconds AST
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// check .sub
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if(sub_name && sub_name[0]){
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for (i = 0; sub_name[i] != NULL; ++i)
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add_subtitles (sub_name[i], sh_video->fps, 0);
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} else
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if(sub_auto && filename) { // auto load sub file ...
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char **tmp = NULL;
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int i = 0;
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char *psub = get_path( "sub/" );
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tmp = sub_filenames((psub ? psub : ""), filename);
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free(psub);
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while (tmp[i])
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{
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add_subtitles (tmp[i], sh_video->fps, 0);
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free(tmp[i++]);
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}
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free(tmp);
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}
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mp_msg(MSGT_CPLAYER,MSGL_INFO,"==========================================================================\n");
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init_best_video_codec(sh_video,video_codec_list,video_fm_list);
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mp_msg(MSGT_CPLAYER,MSGL_INFO,"==========================================================================\n");
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