mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 17:42:17 +00:00
3517a9b72b
It seems that if there is no padding between packets then they actually belong to one subtitle picture. The new hack seems to work far more reliable than the (already removed) old one. Patch by Ubitux (gmail) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31104 b3059339-0415-0410-9bf9-f77b7e298cf2
1454 lines
47 KiB
C
1454 lines
47 KiB
C
/*
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* Some code freely inspired from VobSub <URL:http://vobsub.edensrising.com>,
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* with kind permission from Gabest <gabest@freemail.hu>
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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 <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <stddef.h>
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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 <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "config.h"
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#include "version.h"
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#include "vobsub.h"
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#include "spudec.h"
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#include "mp_msg.h"
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#include "unrar_exec.h"
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#include "libavutil/common.h"
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extern int vobsub_id;
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// Record the original -vobsubid set by commandline, since vobsub_id will be
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// overridden if slang match any of vobsub streams.
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static int vobsubid = -2;
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/**********************************************************************
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* RAR stream handling
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* The RAR file must have the same basename as the file to open
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**********************************************************************/
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#ifdef CONFIG_UNRAR_EXEC
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typedef struct {
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FILE *file;
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unsigned char *data;
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unsigned long size;
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unsigned long pos;
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} rar_stream_t;
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static rar_stream_t *rar_open(const char *const filename,
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const char *const mode)
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{
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rar_stream_t *stream;
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/* unrar_exec can only read */
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if (strcmp("r", mode) && strcmp("rb", mode)) {
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errno = EINVAL;
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return NULL;
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}
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stream = malloc(sizeof(rar_stream_t));
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if (stream == NULL)
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return NULL;
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/* first try normal access */
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stream->file = fopen(filename, mode);
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if (stream->file == NULL) {
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char *rar_filename;
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const char *p;
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int rc;
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/* Guess the RAR archive filename */
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rar_filename = NULL;
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p = strrchr(filename, '.');
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if (p) {
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ptrdiff_t l = p - filename;
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rar_filename = malloc(l + 5);
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if (rar_filename == NULL) {
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free(stream);
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return NULL;
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}
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strncpy(rar_filename, filename, l);
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strcpy(rar_filename + l, ".rar");
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} else {
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rar_filename = malloc(strlen(filename) + 5);
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if (rar_filename == NULL) {
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free(stream);
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return NULL;
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}
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strcpy(rar_filename, filename);
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strcat(rar_filename, ".rar");
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}
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/* get rid of the path if there is any */
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if ((p = strrchr(filename, '/')) == NULL) {
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p = filename;
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} else {
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p++;
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}
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rc = unrar_exec_get(&stream->data, &stream->size, p, rar_filename);
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if (!rc) {
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/* There is no matching filename in the archive. However, sometimes
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* the files we are looking for have been given arbitrary names in the archive.
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* Let's look for a file with an exact match in the extension only. */
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int i, num_files, name_len;
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ArchiveList_struct *list, *lp;
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num_files = unrar_exec_list(rar_filename, &list);
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if (num_files > 0) {
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char *demanded_ext;
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demanded_ext = strrchr (p, '.');
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if (demanded_ext) {
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int demanded_ext_len = strlen (demanded_ext);
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for (i = 0, lp = list; i < num_files; i++, lp = lp->next) {
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name_len = strlen (lp->item.Name);
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if (name_len >= demanded_ext_len && !strcasecmp (lp->item.Name + name_len - demanded_ext_len, demanded_ext)) {
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rc = unrar_exec_get(&stream->data, &stream->size,
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lp->item.Name, rar_filename);
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if (rc)
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break;
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}
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}
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}
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unrar_exec_freelist(list);
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}
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if (!rc) {
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free(rar_filename);
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free(stream);
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return NULL;
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}
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}
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free(rar_filename);
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stream->pos = 0;
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}
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return stream;
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}
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static int rar_close(rar_stream_t *stream)
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{
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if (stream->file)
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return fclose(stream->file);
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free(stream->data);
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return 0;
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}
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static int rar_eof(rar_stream_t *stream)
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{
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if (stream->file)
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return feof(stream->file);
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return stream->pos >= stream->size;
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}
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static long rar_tell(rar_stream_t *stream)
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{
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if (stream->file)
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return ftell(stream->file);
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return stream->pos;
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}
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static int rar_seek(rar_stream_t *stream, long offset, int whence)
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{
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if (stream->file)
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return fseek(stream->file, offset, whence);
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switch (whence) {
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case SEEK_SET:
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if (offset < 0) {
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errno = EINVAL;
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return -1;
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}
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stream->pos = offset;
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break;
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case SEEK_CUR:
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if (offset < 0 && stream->pos < (unsigned long) -offset) {
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errno = EINVAL;
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return -1;
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}
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stream->pos += offset;
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break;
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case SEEK_END:
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if (offset < 0 && stream->size < (unsigned long) -offset) {
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errno = EINVAL;
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return -1;
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}
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stream->pos = stream->size + offset;
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break;
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default:
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errno = EINVAL;
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return -1;
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}
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return 0;
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}
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static int rar_getc(rar_stream_t *stream)
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{
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if (stream->file)
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return getc(stream->file);
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if (rar_eof(stream))
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return EOF;
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return stream->data[stream->pos++];
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}
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static size_t rar_read(void *ptr, size_t size, size_t nmemb,
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rar_stream_t *stream)
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{
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size_t res;
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unsigned long remain;
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if (stream->file)
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return fread(ptr, size, nmemb, stream->file);
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if (rar_eof(stream))
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return 0;
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res = size * nmemb;
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remain = stream->size - stream->pos;
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if (res > remain)
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res = remain / size * size;
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memcpy(ptr, stream->data + stream->pos, res);
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stream->pos += res;
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res /= size;
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return res;
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}
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#else
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typedef FILE rar_stream_t;
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#define rar_open fopen
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#define rar_close fclose
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#define rar_eof feof
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#define rar_tell ftell
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#define rar_seek fseek
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#define rar_getc getc
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#define rar_read fread
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#endif
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/**********************************************************************/
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static ssize_t vobsub_getline(char **lineptr, size_t *n, rar_stream_t *stream)
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{
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size_t res = 0;
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int c;
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if (*lineptr == NULL) {
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*lineptr = malloc(4096);
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if (*lineptr)
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*n = 4096;
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} else if (*n == 0) {
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char *tmp = realloc(*lineptr, 4096);
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if (tmp) {
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*lineptr = tmp;
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*n = 4096;
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}
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}
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if (*lineptr == NULL || *n == 0)
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return -1;
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for (c = rar_getc(stream); c != EOF; c = rar_getc(stream)) {
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if (res + 1 >= *n) {
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char *tmp = realloc(*lineptr, *n * 2);
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if (tmp == NULL)
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return -1;
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*lineptr = tmp;
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*n *= 2;
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}
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(*lineptr)[res++] = c;
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if (c == '\n') {
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(*lineptr)[res] = 0;
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return res;
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}
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}
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if (res == 0)
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return -1;
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(*lineptr)[res] = 0;
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return res;
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}
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/**********************************************************************
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* MPEG parsing
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**********************************************************************/
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typedef struct {
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rar_stream_t *stream;
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unsigned int pts;
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int aid;
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unsigned char *packet;
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unsigned int packet_reserve;
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unsigned int packet_size;
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int padding_was_here;
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int merge;
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} mpeg_t;
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static mpeg_t *mpeg_open(const char *filename)
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{
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mpeg_t *res = malloc(sizeof(mpeg_t));
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int err = res == NULL;
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if (!err) {
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res->pts = 0;
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res->aid = -1;
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res->packet = NULL;
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res->packet_size = 0;
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res->packet_reserve = 0;
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res->padding_was_here = 1;
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res->merge = 0;
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res->stream = rar_open(filename, "rb");
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err = res->stream == NULL;
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if (err)
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perror("fopen Vobsub file failed");
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if (err)
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free(res);
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}
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return err ? NULL : res;
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}
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static void mpeg_free(mpeg_t *mpeg)
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{
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if (mpeg->packet)
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free(mpeg->packet);
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if (mpeg->stream)
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rar_close(mpeg->stream);
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free(mpeg);
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}
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static int mpeg_eof(mpeg_t *mpeg)
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{
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return rar_eof(mpeg->stream);
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}
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static off_t mpeg_tell(mpeg_t *mpeg)
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{
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return rar_tell(mpeg->stream);
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}
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static int mpeg_run(mpeg_t *mpeg)
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{
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unsigned int len, idx, version;
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int c;
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/* Goto start of a packet, it starts with 0x000001?? */
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const unsigned char wanted[] = { 0, 0, 1 };
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unsigned char buf[5];
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mpeg->aid = -1;
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mpeg->packet_size = 0;
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if (rar_read(buf, 4, 1, mpeg->stream) != 1)
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return -1;
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while (memcmp(buf, wanted, sizeof(wanted)) != 0) {
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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memmove(buf, buf + 1, 3);
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buf[3] = c;
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}
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switch (buf[3]) {
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case 0xb9: /* System End Code */
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break;
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case 0xba: /* Packet start code */
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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if ((c & 0xc0) == 0x40)
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version = 4;
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else if ((c & 0xf0) == 0x20)
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version = 2;
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else {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Unsupported MPEG version: 0x%02x\n", c);
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return -1;
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}
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if (version == 4) {
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if (rar_seek(mpeg->stream, 9, SEEK_CUR))
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return -1;
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} else if (version == 2) {
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if (rar_seek(mpeg->stream, 7, SEEK_CUR))
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return -1;
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} else
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abort();
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if (!mpeg->padding_was_here)
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mpeg->merge = 1;
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break;
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case 0xbd: /* packet */
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if (rar_read(buf, 2, 1, mpeg->stream) != 1)
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return -1;
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mpeg->padding_was_here = 0;
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len = buf[0] << 8 | buf[1];
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idx = mpeg_tell(mpeg);
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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if ((c & 0xC0) == 0x40) { /* skip STD scale & size */
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if (rar_getc(mpeg->stream) < 0)
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return -1;
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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}
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if ((c & 0xf0) == 0x20) { /* System-1 stream timestamp */
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/* Do we need this? */
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abort();
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} else if ((c & 0xf0) == 0x30) {
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/* Do we need this? */
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abort();
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} else if ((c & 0xc0) == 0x80) { /* System-2 (.VOB) stream */
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unsigned int pts_flags, hdrlen, dataidx;
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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pts_flags = c;
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c = rar_getc(mpeg->stream);
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if (c < 0)
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return -1;
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hdrlen = c;
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dataidx = mpeg_tell(mpeg) + hdrlen;
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if (dataidx > idx + len) {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "Invalid header length: %d (total length: %d, idx: %d, dataidx: %d)\n",
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hdrlen, len, idx, dataidx);
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return -1;
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}
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if ((pts_flags & 0xc0) == 0x80) {
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if (rar_read(buf, 5, 1, mpeg->stream) != 1)
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return -1;
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if (!(((buf[0] & 0xf0) == 0x20) && (buf[0] & 1) && (buf[2] & 1) && (buf[4] & 1))) {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "vobsub PTS error: 0x%02x %02x%02x %02x%02x \n",
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buf[0], buf[1], buf[2], buf[3], buf[4]);
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mpeg->pts = 0;
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} else
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mpeg->pts = ((buf[0] & 0x0e) << 29 | buf[1] << 22 | (buf[2] & 0xfe) << 14
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| buf[3] << 7 | (buf[4] >> 1));
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} else /* if ((pts_flags & 0xc0) == 0xc0) */ {
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/* what's this? */
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/* abort(); */
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}
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rar_seek(mpeg->stream, dataidx, SEEK_SET);
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mpeg->aid = rar_getc(mpeg->stream);
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if (mpeg->aid < 0) {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "Bogus aid %d\n", mpeg->aid);
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return -1;
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}
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mpeg->packet_size = len - ((unsigned int) mpeg_tell(mpeg) - idx);
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if (mpeg->packet_reserve < mpeg->packet_size) {
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if (mpeg->packet)
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free(mpeg->packet);
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mpeg->packet = malloc(mpeg->packet_size);
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if (mpeg->packet)
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mpeg->packet_reserve = mpeg->packet_size;
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}
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if (mpeg->packet == NULL) {
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mp_msg(MSGT_VOBSUB, MSGL_FATAL, "malloc failure");
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mpeg->packet_reserve = 0;
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mpeg->packet_size = 0;
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return -1;
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}
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if (rar_read(mpeg->packet, mpeg->packet_size, 1, mpeg->stream) != 1) {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "fread failure");
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mpeg->packet_size = 0;
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return -1;
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}
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idx = len;
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}
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break;
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case 0xbe: /* Padding */
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if (rar_read(buf, 2, 1, mpeg->stream) != 1)
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return -1;
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len = buf[0] << 8 | buf[1];
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if (len > 0 && rar_seek(mpeg->stream, len, SEEK_CUR))
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return -1;
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mpeg->padding_was_here = 1;
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break;
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default:
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if (0xc0 <= buf[3] && buf[3] < 0xf0) {
|
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/* MPEG audio or video */
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if (rar_read(buf, 2, 1, mpeg->stream) != 1)
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return -1;
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len = buf[0] << 8 | buf[1];
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if (len > 0 && rar_seek(mpeg->stream, len, SEEK_CUR))
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return -1;
|
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} else {
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mp_msg(MSGT_VOBSUB, MSGL_ERR, "unknown header 0x%02X%02X%02X%02X\n",
|
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buf[0], buf[1], buf[2], buf[3]);
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return -1;
|
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}
|
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}
|
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return 0;
|
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}
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|
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/**********************************************************************
|
|
* Packet queue
|
|
**********************************************************************/
|
|
|
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typedef struct {
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unsigned int pts100;
|
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off_t filepos;
|
|
unsigned int size;
|
|
unsigned char *data;
|
|
} packet_t;
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|
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typedef struct {
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char *id;
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|
packet_t *packets;
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unsigned int packets_reserve;
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|
unsigned int packets_size;
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|
unsigned int current_index;
|
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} packet_queue_t;
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|
|
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static void packet_construct(packet_t *pkt)
|
|
{
|
|
pkt->pts100 = 0;
|
|
pkt->filepos = 0;
|
|
pkt->size = 0;
|
|
pkt->data = NULL;
|
|
}
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|
|
|
static void packet_destroy(packet_t *pkt)
|
|
{
|
|
if (pkt->data)
|
|
free(pkt->data);
|
|
}
|
|
|
|
static void packet_queue_construct(packet_queue_t *queue)
|
|
{
|
|
queue->id = NULL;
|
|
queue->packets = NULL;
|
|
queue->packets_reserve = 0;
|
|
queue->packets_size = 0;
|
|
queue->current_index = 0;
|
|
}
|
|
|
|
static void packet_queue_destroy(packet_queue_t *queue)
|
|
{
|
|
if (queue->packets) {
|
|
while (queue->packets_size--)
|
|
packet_destroy(queue->packets + queue->packets_size);
|
|
free(queue->packets);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Make sure there is enough room for needed_size packets in the
|
|
packet queue. */
|
|
static int packet_queue_ensure(packet_queue_t *queue, unsigned int needed_size)
|
|
{
|
|
if (queue->packets_reserve < needed_size) {
|
|
if (queue->packets) {
|
|
packet_t *tmp = realloc(queue->packets, 2 * queue->packets_reserve * sizeof(packet_t));
|
|
if (tmp == NULL) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_FATAL, "realloc failure");
|
|
return -1;
|
|
}
|
|
queue->packets = tmp;
|
|
queue->packets_reserve *= 2;
|
|
} else {
|
|
queue->packets = malloc(sizeof(packet_t));
|
|
if (queue->packets == NULL) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_FATAL, "malloc failure");
|
|
return -1;
|
|
}
|
|
queue->packets_reserve = 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* add one more packet */
|
|
static int packet_queue_grow(packet_queue_t *queue)
|
|
{
|
|
if (packet_queue_ensure(queue, queue->packets_size + 1) < 0)
|
|
return -1;
|
|
packet_construct(queue->packets + queue->packets_size);
|
|
++queue->packets_size;
|
|
return 0;
|
|
}
|
|
|
|
/* insert a new packet, duplicating pts from the current one */
|
|
static int packet_queue_insert(packet_queue_t *queue)
|
|
{
|
|
packet_t *pkts;
|
|
if (packet_queue_ensure(queue, queue->packets_size + 1) < 0)
|
|
return -1;
|
|
/* XXX packet_size does not reflect the real thing here, it will be updated a bit later */
|
|
memmove(queue->packets + queue->current_index + 2,
|
|
queue->packets + queue->current_index + 1,
|
|
sizeof(packet_t) * (queue->packets_size - queue->current_index - 1));
|
|
pkts = queue->packets + queue->current_index;
|
|
++queue->packets_size;
|
|
++queue->current_index;
|
|
packet_construct(pkts + 1);
|
|
pkts[1].pts100 = pkts[0].pts100;
|
|
pkts[1].filepos = pkts[0].filepos;
|
|
return 0;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Vobsub
|
|
**********************************************************************/
|
|
|
|
typedef struct {
|
|
unsigned int palette[16];
|
|
int delay;
|
|
unsigned int have_palette;
|
|
unsigned int orig_frame_width, orig_frame_height;
|
|
unsigned int origin_x, origin_y;
|
|
/* index */
|
|
packet_queue_t *spu_streams;
|
|
unsigned int spu_streams_size;
|
|
unsigned int spu_streams_current;
|
|
unsigned int spu_valid_streams_size;
|
|
} vobsub_t;
|
|
|
|
/* Make sure that the spu stream idx exists. */
|
|
static int vobsub_ensure_spu_stream(vobsub_t *vob, unsigned int index)
|
|
{
|
|
if (index >= vob->spu_streams_size) {
|
|
/* This is a new stream */
|
|
if (vob->spu_streams) {
|
|
packet_queue_t *tmp = realloc(vob->spu_streams, (index + 1) * sizeof(packet_queue_t));
|
|
if (tmp == NULL) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "vobsub_ensure_spu_stream: realloc failure");
|
|
return -1;
|
|
}
|
|
vob->spu_streams = tmp;
|
|
} else {
|
|
vob->spu_streams = malloc((index + 1) * sizeof(packet_queue_t));
|
|
if (vob->spu_streams == NULL) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "vobsub_ensure_spu_stream: malloc failure");
|
|
return -1;
|
|
}
|
|
}
|
|
while (vob->spu_streams_size <= index) {
|
|
packet_queue_construct(vob->spu_streams + vob->spu_streams_size);
|
|
++vob->spu_streams_size;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int vobsub_add_id(vobsub_t *vob, const char *id, size_t idlen,
|
|
const unsigned int index)
|
|
{
|
|
if (vobsub_ensure_spu_stream(vob, index) < 0)
|
|
return -1;
|
|
if (id && idlen) {
|
|
if (vob->spu_streams[index].id)
|
|
free(vob->spu_streams[index].id);
|
|
vob->spu_streams[index].id = malloc(idlen + 1);
|
|
if (vob->spu_streams[index].id == NULL) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_FATAL, "vobsub_add_id: malloc failure");
|
|
return -1;
|
|
}
|
|
vob->spu_streams[index].id[idlen] = 0;
|
|
memcpy(vob->spu_streams[index].id, id, idlen);
|
|
}
|
|
vob->spu_streams_current = index;
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VOBSUB_ID=%d\n", index);
|
|
if (id && idlen)
|
|
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VSID_%d_LANG=%s\n", index, vob->spu_streams[index].id);
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "[vobsub] subtitle (vobsubid): %d language %s\n",
|
|
index, vob->spu_streams[index].id);
|
|
return 0;
|
|
}
|
|
|
|
static int vobsub_add_timestamp(vobsub_t *vob, off_t filepos, int ms)
|
|
{
|
|
packet_queue_t *queue;
|
|
packet_t *pkt;
|
|
if (vob->spu_streams == 0) {
|
|
mp_msg(MSGT_VOBSUB, MSGL_WARN, "[vobsub] warning, binning some index entries. Check your index file\n");
|
|
return -1;
|
|
}
|
|
queue = vob->spu_streams + vob->spu_streams_current;
|
|
if (packet_queue_grow(queue) >= 0) {
|
|
pkt = queue->packets + (queue->packets_size - 1);
|
|
pkt->filepos = filepos;
|
|
pkt->pts100 = ms < 0 ? UINT_MAX : (unsigned int)ms * 90;
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int vobsub_parse_id(vobsub_t *vob, const char *line)
|
|
{
|
|
// id: xx, index: n
|
|
size_t idlen;
|
|
const char *p, *q;
|
|
p = line;
|
|
while (isspace(*p))
|
|
++p;
|
|
q = p;
|
|
while (isalpha(*q))
|
|
++q;
|
|
idlen = q - p;
|
|
if (idlen == 0)
|
|
return -1;
|
|
++q;
|
|
while (isspace(*q))
|
|
++q;
|
|
if (strncmp("index:", q, 6))
|
|
return -1;
|
|
q += 6;
|
|
while (isspace(*q))
|
|
++q;
|
|
if (!isdigit(*q))
|
|
return -1;
|
|
return vobsub_add_id(vob, p, idlen, atoi(q));
|
|
}
|
|
|
|
static int vobsub_parse_timestamp(vobsub_t *vob, const char *line)
|
|
{
|
|
// timestamp: HH:MM:SS.mmm, filepos: 0nnnnnnnnn
|
|
const char *p;
|
|
int h, m, s, ms;
|
|
off_t filepos;
|
|
while (isspace(*line))
|
|
++line;
|
|
p = line;
|
|
while (isdigit(*p))
|
|
++p;
|
|
if (p - line != 2)
|
|
return -1;
|
|
h = atoi(line);
|
|
if (*p != ':')
|
|
return -1;
|
|
line = ++p;
|
|
while (isdigit(*p))
|
|
++p;
|
|
if (p - line != 2)
|
|
return -1;
|
|
m = atoi(line);
|
|
if (*p != ':')
|
|
return -1;
|
|
line = ++p;
|
|
while (isdigit(*p))
|
|
++p;
|
|
if (p - line != 2)
|
|
return -1;
|
|
s = atoi(line);
|
|
if (*p != ':')
|
|
return -1;
|
|
line = ++p;
|
|
while (isdigit(*p))
|
|
++p;
|
|
if (p - line != 3)
|
|
return -1;
|
|
ms = atoi(line);
|
|
if (*p != ',')
|
|
return -1;
|
|
line = p + 1;
|
|
while (isspace(*line))
|
|
++line;
|
|
if (strncmp("filepos:", line, 8))
|
|
return -1;
|
|
line += 8;
|
|
while (isspace(*line))
|
|
++line;
|
|
if (! isxdigit(*line))
|
|
return -1;
|
|
filepos = strtol(line, NULL, 16);
|
|
return vobsub_add_timestamp(vob, filepos, vob->delay + ms + 1000 * (s + 60 * (m + 60 * h)));
|
|
}
|
|
|
|
static int vobsub_parse_origin(vobsub_t *vob, const char *line)
|
|
{
|
|
// org: X,Y
|
|
char *p;
|
|
while (isspace(*line))
|
|
++line;
|
|
if (!isdigit(*line))
|
|
return -1;
|
|
vob->origin_x = strtoul(line, &p, 10);
|
|
if (*p != ',')
|
|
return -1;
|
|
++p;
|
|
vob->origin_y = strtoul(p, NULL, 10);
|
|
return 0;
|
|
}
|
|
|
|
unsigned int vobsub_palette_to_yuv(unsigned int pal)
|
|
{
|
|
int r, g, b, y, u, v;
|
|
// Palette in idx file is not rgb value, it was calculated by wrong formula.
|
|
// Here's reversed formula of the one used to generate palette in idx file.
|
|
r = pal >> 16 & 0xff;
|
|
g = pal >> 8 & 0xff;
|
|
b = pal & 0xff;
|
|
y = av_clip_uint8( 0.1494 * r + 0.6061 * g + 0.2445 * b);
|
|
u = av_clip_uint8( 0.6066 * r - 0.4322 * g - 0.1744 * b + 128);
|
|
v = av_clip_uint8(-0.08435 * r - 0.3422 * g + 0.4266 * b + 128);
|
|
y = y * 219 / 255 + 16;
|
|
return y << 16 | u << 8 | v;
|
|
}
|
|
|
|
unsigned int vobsub_rgb_to_yuv(unsigned int rgb)
|
|
{
|
|
int r, g, b, y, u, v;
|
|
r = rgb >> 16 & 0xff;
|
|
g = rgb >> 8 & 0xff;
|
|
b = rgb & 0xff;
|
|
y = ( 0.299 * r + 0.587 * g + 0.114 * b) * 219 / 255 + 16.5;
|
|
u = (-0.16874 * r - 0.33126 * g + 0.5 * b) * 224 / 255 + 128.5;
|
|
v = ( 0.5 * r - 0.41869 * g - 0.08131 * b) * 224 / 255 + 128.5;
|
|
return y << 16 | u << 8 | v;
|
|
}
|
|
|
|
static int vobsub_parse_delay(vobsub_t *vob, const char *line)
|
|
{
|
|
int h, m, s, ms;
|
|
int forward = 1;
|
|
if (*(line + 7) == '+') {
|
|
forward = 1;
|
|
line++;
|
|
} else if (*(line + 7) == '-') {
|
|
forward = -1;
|
|
line++;
|
|
}
|
|
mp_msg(MSGT_SPUDEC, MSGL_V, "forward=%d", forward);
|
|
h = atoi(line + 7);
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "h=%d,", h);
|
|
m = atoi(line + 10);
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "m=%d,", m);
|
|
s = atoi(line + 13);
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "s=%d,", s);
|
|
ms = atoi(line + 16);
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "ms=%d", ms);
|
|
vob->delay = (ms + 1000 * (s + 60 * (m + 60 * h))) * forward;
|
|
return 0;
|
|
}
|
|
|
|
static int vobsub_set_lang(const char *line)
|
|
{
|
|
if (vobsub_id == -1)
|
|
vobsub_id = atoi(line + 8);
|
|
return 0;
|
|
}
|
|
|
|
static int vobsub_parse_one_line(vobsub_t *vob, rar_stream_t *fd,
|
|
unsigned char **extradata,
|
|
unsigned int *extradata_len)
|
|
{
|
|
ssize_t line_size;
|
|
int res = -1;
|
|
size_t line_reserve = 0;
|
|
char *line = NULL;
|
|
do {
|
|
line_size = vobsub_getline(&line, &line_reserve, fd);
|
|
if (line_size < 0 || line_size > 1000000 ||
|
|
*extradata_len+line_size > 10000000) {
|
|
break;
|
|
}
|
|
|
|
*extradata = realloc(*extradata, *extradata_len+line_size+1);
|
|
memcpy(*extradata+*extradata_len, line, line_size);
|
|
*extradata_len += line_size;
|
|
(*extradata)[*extradata_len] = 0;
|
|
|
|
if (*line == 0 || *line == '\r' || *line == '\n' || *line == '#')
|
|
continue;
|
|
else if (strncmp("langidx:", line, 8) == 0)
|
|
res = vobsub_set_lang(line);
|
|
else if (strncmp("delay:", line, 6) == 0)
|
|
res = vobsub_parse_delay(vob, line);
|
|
else if (strncmp("id:", line, 3) == 0)
|
|
res = vobsub_parse_id(vob, line + 3);
|
|
else if (strncmp("org:", line, 4) == 0)
|
|
res = vobsub_parse_origin(vob, line + 4);
|
|
else if (strncmp("timestamp:", line, 10) == 0)
|
|
res = vobsub_parse_timestamp(vob, line + 10);
|
|
else {
|
|
mp_msg(MSGT_VOBSUB, MSGL_V, "vobsub: ignoring %s", line);
|
|
continue;
|
|
}
|
|
if (res < 0)
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "ERROR in %s", line);
|
|
break;
|
|
} while (1);
|
|
if (line)
|
|
free(line);
|
|
return res;
|
|
}
|
|
|
|
int vobsub_parse_ifo(void* this, const char *const name, unsigned int *palette,
|
|
unsigned int *width, unsigned int *height, int force,
|
|
int sid, char *langid)
|
|
{
|
|
vobsub_t *vob = (vobsub_t*)this;
|
|
int res = -1;
|
|
rar_stream_t *fd = rar_open(name, "rb");
|
|
if (fd == NULL) {
|
|
if (force)
|
|
mp_msg(MSGT_VOBSUB, MSGL_WARN, "VobSub: Can't open IFO file\n");
|
|
} else {
|
|
// parse IFO header
|
|
unsigned char block[0x800];
|
|
const char *const ifo_magic = "DVDVIDEO-VTS";
|
|
if (rar_read(block, sizeof(block), 1, fd) != 1) {
|
|
if (force)
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Can't read IFO header\n");
|
|
} else if (memcmp(block, ifo_magic, strlen(ifo_magic) + 1))
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Bad magic in IFO header\n");
|
|
else {
|
|
unsigned long pgci_sector = block[0xcc] << 24 | block[0xcd] << 16
|
|
| block[0xce] << 8 | block[0xcf];
|
|
int standard = (block[0x200] & 0x30) >> 4;
|
|
int resolution = (block[0x201] & 0x0c) >> 2;
|
|
*height = standard ? 576 : 480;
|
|
*width = 0;
|
|
switch (resolution) {
|
|
case 0x0:
|
|
*width = 720;
|
|
break;
|
|
case 0x1:
|
|
*width = 704;
|
|
break;
|
|
case 0x2:
|
|
*width = 352;
|
|
break;
|
|
case 0x3:
|
|
*width = 352;
|
|
*height /= 2;
|
|
break;
|
|
default:
|
|
mp_msg(MSGT_VOBSUB, MSGL_WARN, "Vobsub: Unknown resolution %d \n", resolution);
|
|
}
|
|
if (langid && 0 <= sid && sid < 32) {
|
|
unsigned char *tmp = block + 0x256 + sid * 6 + 2;
|
|
langid[0] = tmp[0];
|
|
langid[1] = tmp[1];
|
|
langid[2] = 0;
|
|
}
|
|
if (rar_seek(fd, pgci_sector * sizeof(block), SEEK_SET)
|
|
|| rar_read(block, sizeof(block), 1, fd) != 1)
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Can't read IFO PGCI\n");
|
|
else {
|
|
unsigned long idx;
|
|
unsigned long pgc_offset = block[0xc] << 24 | block[0xd] << 16
|
|
| block[0xe] << 8 | block[0xf];
|
|
for (idx = 0; idx < 16; ++idx) {
|
|
unsigned char *p = block + pgc_offset + 0xa4 + 4 * idx;
|
|
palette[idx] = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
|
|
}
|
|
if (vob)
|
|
vob->have_palette = 1;
|
|
res = 0;
|
|
}
|
|
}
|
|
rar_close(fd);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void *vobsub_open(const char *const name, const char *const ifo,
|
|
const int force, void** spu)
|
|
{
|
|
unsigned char *extradata = NULL;
|
|
unsigned int extradata_len = 0;
|
|
vobsub_t *vob = calloc(1, sizeof(vobsub_t));
|
|
if (spu)
|
|
*spu = NULL;
|
|
if (vobsubid == -2)
|
|
vobsubid = vobsub_id;
|
|
if (vob) {
|
|
char *buf;
|
|
buf = malloc(strlen(name) + 5);
|
|
if (buf) {
|
|
rar_stream_t *fd;
|
|
mpeg_t *mpg;
|
|
/* read in the info file */
|
|
if (!ifo) {
|
|
strcpy(buf, name);
|
|
strcat(buf, ".ifo");
|
|
vobsub_parse_ifo(vob, buf, vob->palette, &vob->orig_frame_width, &vob->orig_frame_height, force, -1, NULL);
|
|
} else
|
|
vobsub_parse_ifo(vob, ifo, vob->palette, &vob->orig_frame_width, &vob->orig_frame_height, force, -1, NULL);
|
|
/* read in the index */
|
|
strcpy(buf, name);
|
|
strcat(buf, ".idx");
|
|
fd = rar_open(buf, "rb");
|
|
if (fd == NULL) {
|
|
if (force)
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Can't open IDX file\n");
|
|
else {
|
|
free(buf);
|
|
free(vob);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
while (vobsub_parse_one_line(vob, fd, &extradata, &extradata_len) >= 0)
|
|
/* NOOP */ ;
|
|
rar_close(fd);
|
|
}
|
|
if (spu)
|
|
*spu = spudec_new_scaled(vob->palette, vob->orig_frame_width, vob->orig_frame_height, extradata, extradata_len);
|
|
if (extradata)
|
|
free(extradata);
|
|
|
|
/* read the indexed mpeg_stream */
|
|
strcpy(buf, name);
|
|
strcat(buf, ".sub");
|
|
mpg = mpeg_open(buf);
|
|
if (mpg == NULL) {
|
|
if (force)
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: Can't open SUB file\n");
|
|
else {
|
|
free(buf);
|
|
free(vob);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
long last_pts_diff = 0;
|
|
while (!mpeg_eof(mpg)) {
|
|
off_t pos = mpeg_tell(mpg);
|
|
if (mpeg_run(mpg) < 0) {
|
|
if (!mpeg_eof(mpg))
|
|
mp_msg(MSGT_VOBSUB, MSGL_ERR, "VobSub: mpeg_run error\n");
|
|
break;
|
|
}
|
|
if (mpg->packet_size) {
|
|
if ((mpg->aid & 0xe0) == 0x20) {
|
|
unsigned int sid = mpg->aid & 0x1f;
|
|
if (vobsub_ensure_spu_stream(vob, sid) >= 0) {
|
|
packet_queue_t *queue = vob->spu_streams + sid;
|
|
/* get the packet to fill */
|
|
if (queue->packets_size == 0 && packet_queue_grow(queue) < 0)
|
|
abort();
|
|
while (queue->current_index + 1 < queue->packets_size
|
|
&& queue->packets[queue->current_index + 1].filepos <= pos)
|
|
++queue->current_index;
|
|
if (queue->current_index < queue->packets_size) {
|
|
packet_t *pkt;
|
|
if (queue->packets[queue->current_index].data) {
|
|
/* insert a new packet and fix the PTS ! */
|
|
packet_queue_insert(queue);
|
|
queue->packets[queue->current_index].pts100 =
|
|
mpg->pts + last_pts_diff;
|
|
}
|
|
pkt = queue->packets + queue->current_index;
|
|
if (pkt->pts100 != UINT_MAX) {
|
|
if (queue->packets_size > 1)
|
|
last_pts_diff = pkt->pts100 - mpg->pts;
|
|
else
|
|
pkt->pts100 = mpg->pts;
|
|
if (mpg->merge) {
|
|
packet_t *last = &queue->packets[queue->current_index - 1];
|
|
pkt->pts100 = last->pts100;
|
|
mpg->merge = 0;
|
|
}
|
|
/* FIXME: should not use mpg_sub internal informations, make a copy */
|
|
pkt->data = mpg->packet;
|
|
pkt->size = mpg->packet_size;
|
|
mpg->packet = NULL;
|
|
mpg->packet_reserve = 0;
|
|
mpg->packet_size = 0;
|
|
}
|
|
}
|
|
} else
|
|
mp_msg(MSGT_VOBSUB, MSGL_WARN, "don't know what to do with subtitle #%u\n", sid);
|
|
}
|
|
}
|
|
}
|
|
vob->spu_streams_current = vob->spu_streams_size;
|
|
while (vob->spu_streams_current-- > 0) {
|
|
vob->spu_streams[vob->spu_streams_current].current_index = 0;
|
|
if (vobsubid == vob->spu_streams_current ||
|
|
vob->spu_streams[vob->spu_streams_current].packets_size > 0)
|
|
++vob->spu_valid_streams_size;
|
|
}
|
|
mpeg_free(mpg);
|
|
}
|
|
free(buf);
|
|
}
|
|
}
|
|
return vob;
|
|
}
|
|
|
|
void vobsub_close(void *this)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *)this;
|
|
if (vob->spu_streams) {
|
|
while (vob->spu_streams_size--)
|
|
packet_queue_destroy(vob->spu_streams + vob->spu_streams_size);
|
|
free(vob->spu_streams);
|
|
}
|
|
free(vob);
|
|
}
|
|
|
|
unsigned int vobsub_get_indexes_count(void *vobhandle)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *) vobhandle;
|
|
return vob->spu_valid_streams_size;
|
|
}
|
|
|
|
char *vobsub_get_id(void *vobhandle, unsigned int index)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *) vobhandle;
|
|
return (index < vob->spu_streams_size) ? vob->spu_streams[index].id : NULL;
|
|
}
|
|
|
|
int vobsub_get_id_by_index(void *vobhandle, unsigned int index)
|
|
{
|
|
vobsub_t *vob = vobhandle;
|
|
int i, j;
|
|
if (vob == NULL)
|
|
return -1;
|
|
for (i = 0, j = 0; i < vob->spu_streams_size; ++i)
|
|
if (i == vobsubid || vob->spu_streams[i].packets_size > 0) {
|
|
if (j == index)
|
|
return i;
|
|
++j;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int vobsub_get_index_by_id(void *vobhandle, int id)
|
|
{
|
|
vobsub_t *vob = vobhandle;
|
|
int i, j;
|
|
if (vob == NULL || id < 0 || id >= vob->spu_streams_size)
|
|
return -1;
|
|
if (id != vobsubid && !vob->spu_streams[id].packets_size)
|
|
return -1;
|
|
for (i = 0, j = 0; i < id; ++i)
|
|
if (i == vobsubid || vob->spu_streams[i].packets_size > 0)
|
|
++j;
|
|
return j;
|
|
}
|
|
|
|
int vobsub_set_from_lang(void *vobhandle, unsigned char * lang)
|
|
{
|
|
int i;
|
|
vobsub_t *vob= (vobsub_t *) vobhandle;
|
|
while (lang && strlen(lang) >= 2) {
|
|
for (i = 0; i < vob->spu_streams_size; i++)
|
|
if (vob->spu_streams[i].id)
|
|
if ((strncmp(vob->spu_streams[i].id, lang, 2) == 0)) {
|
|
vobsub_id = i;
|
|
mp_msg(MSGT_VOBSUB, MSGL_INFO, "Selected VOBSUB language: %d language: %s\n", i, vob->spu_streams[i].id);
|
|
return 0;
|
|
}
|
|
lang+=2;while (lang[0]==',' || lang[0]==' ') ++lang;
|
|
}
|
|
mp_msg(MSGT_VOBSUB, MSGL_WARN, "No matching VOBSUB language found!\n");
|
|
return -1;
|
|
}
|
|
|
|
/// make sure we seek to the first packet of packets having same pts values.
|
|
static void vobsub_queue_reseek(packet_queue_t *queue, unsigned int pts100)
|
|
{
|
|
int reseek_count = 0;
|
|
unsigned int lastpts = 0;
|
|
|
|
if (queue->current_index > 0
|
|
&& (queue->packets[queue->current_index].pts100 == UINT_MAX
|
|
|| queue->packets[queue->current_index].pts100 > pts100)) {
|
|
// possible pts seek previous, try to check it.
|
|
int i = 1;
|
|
while (queue->current_index >= i
|
|
&& queue->packets[queue->current_index-i].pts100 == UINT_MAX)
|
|
++i;
|
|
if (queue->current_index >= i
|
|
&& queue->packets[queue->current_index-i].pts100 > pts100)
|
|
// pts seek previous confirmed, reseek from beginning
|
|
queue->current_index = 0;
|
|
}
|
|
while (queue->current_index < queue->packets_size
|
|
&& queue->packets[queue->current_index].pts100 <= pts100) {
|
|
lastpts = queue->packets[queue->current_index].pts100;
|
|
++queue->current_index;
|
|
++reseek_count;
|
|
}
|
|
while (reseek_count-- && --queue->current_index) {
|
|
if (queue->packets[queue->current_index-1].pts100 != UINT_MAX &&
|
|
queue->packets[queue->current_index-1].pts100 != lastpts)
|
|
break;
|
|
}
|
|
}
|
|
|
|
int vobsub_get_packet(void *vobhandle, float pts, void** data, int* timestamp)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *)vobhandle;
|
|
unsigned int pts100 = 90000 * pts;
|
|
if (vob->spu_streams && 0 <= vobsub_id && (unsigned) vobsub_id < vob->spu_streams_size) {
|
|
packet_queue_t *queue = vob->spu_streams + vobsub_id;
|
|
|
|
vobsub_queue_reseek(queue, pts100);
|
|
|
|
while (queue->current_index < queue->packets_size) {
|
|
packet_t *pkt = queue->packets + queue->current_index;
|
|
if (pkt->pts100 != UINT_MAX)
|
|
if (pkt->pts100 <= pts100) {
|
|
++queue->current_index;
|
|
*data = pkt->data;
|
|
*timestamp = pkt->pts100;
|
|
return pkt->size;
|
|
} else
|
|
break;
|
|
else
|
|
++queue->current_index;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int vobsub_get_next_packet(void *vobhandle, void** data, int* timestamp)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *)vobhandle;
|
|
if (vob->spu_streams && 0 <= vobsub_id && (unsigned) vobsub_id < vob->spu_streams_size) {
|
|
packet_queue_t *queue = vob->spu_streams + vobsub_id;
|
|
if (queue->current_index < queue->packets_size) {
|
|
packet_t *pkt = queue->packets + queue->current_index;
|
|
++queue->current_index;
|
|
*data = pkt->data;
|
|
*timestamp = pkt->pts100;
|
|
return pkt->size;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void vobsub_seek(void * vobhandle, float pts)
|
|
{
|
|
vobsub_t * vob = (vobsub_t *)vobhandle;
|
|
packet_queue_t * queue;
|
|
int seek_pts100 = pts * 90000;
|
|
|
|
if (vob->spu_streams && 0 <= vobsub_id && (unsigned) vobsub_id < vob->spu_streams_size) {
|
|
/* do not seek if we don't know the id */
|
|
if (vobsub_get_id(vob, vobsub_id) == NULL)
|
|
return;
|
|
queue = vob->spu_streams + vobsub_id;
|
|
queue->current_index = 0;
|
|
vobsub_queue_reseek(queue, seek_pts100);
|
|
}
|
|
}
|
|
|
|
void vobsub_reset(void *vobhandle)
|
|
{
|
|
vobsub_t *vob = (vobsub_t *)vobhandle;
|
|
if (vob->spu_streams) {
|
|
unsigned int n = vob->spu_streams_size;
|
|
while (n-- > 0)
|
|
vob->spu_streams[n].current_index = 0;
|
|
}
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Vobsub output
|
|
**********************************************************************/
|
|
|
|
typedef struct {
|
|
FILE *fsub;
|
|
FILE *fidx;
|
|
unsigned int aid;
|
|
} vobsub_out_t;
|
|
|
|
static void create_idx(vobsub_out_t *me, const unsigned int *palette,
|
|
unsigned int orig_width, unsigned int orig_height)
|
|
{
|
|
int i;
|
|
fprintf(me->fidx,
|
|
"# VobSub index file, v7 (do not modify this line!)\n"
|
|
"#\n"
|
|
"# Generated by MPlayer " VERSION "\n"
|
|
"# See <URL:http://www.mplayerhq.hu/> for more information about MPlayer\n"
|
|
"# See <URL:http://wiki.multimedia.cx/index.php?title=VOBsub> for more information about Vobsub\n"
|
|
"#\n"
|
|
"size: %ux%u\n",
|
|
orig_width, orig_height);
|
|
if (palette) {
|
|
fputs("palette:", me->fidx);
|
|
for (i = 0; i < 16; ++i) {
|
|
const double y = palette[i] >> 16 & 0xff,
|
|
u = (palette[i] >> 8 & 0xff) - 128.0,
|
|
v = (palette[i] & 0xff) - 128.0;
|
|
if (i)
|
|
putc(',', me->fidx);
|
|
fprintf(me->fidx, " %02x%02x%02x",
|
|
av_clip_uint8(y + 1.4022 * u),
|
|
av_clip_uint8(y - 0.3456 * u - 0.7145 * v),
|
|
av_clip_uint8(y + 1.7710 * v));
|
|
}
|
|
putc('\n', me->fidx);
|
|
}
|
|
|
|
fprintf(me->fidx, "# ON: displays only forced subtitles, OFF: shows everything\n"
|
|
"forced subs: OFF\n");
|
|
}
|
|
|
|
void *vobsub_out_open(const char *basename, const unsigned int *palette,
|
|
unsigned int orig_width, unsigned int orig_height,
|
|
const char *id, unsigned int index)
|
|
{
|
|
vobsub_out_t *result = NULL;
|
|
char *filename;
|
|
filename = malloc(strlen(basename) + 5);
|
|
if (filename) {
|
|
result = malloc(sizeof(vobsub_out_t));
|
|
if (result) {
|
|
result->aid = index;
|
|
strcpy(filename, basename);
|
|
strcat(filename, ".sub");
|
|
result->fsub = fopen(filename, "ab");
|
|
if (result->fsub == NULL)
|
|
perror("Error: vobsub_out_open subtitle file open failed");
|
|
strcpy(filename, basename);
|
|
strcat(filename, ".idx");
|
|
result->fidx = fopen(filename, "ab");
|
|
if (result->fidx) {
|
|
if (ftell(result->fidx) == 0) {
|
|
create_idx(result, palette, orig_width, orig_height);
|
|
/* Make the selected language the default language */
|
|
fprintf(result->fidx, "\n# Language index in use\nlangidx: %u\n", index);
|
|
}
|
|
fprintf(result->fidx, "\nid: %s, index: %u\n", id ? id : "xx", index);
|
|
/* So that we can check the file now */
|
|
fflush(result->fidx);
|
|
} else
|
|
perror("Error: vobsub_out_open index file open failed");
|
|
free(filename);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void vobsub_out_close(void *me)
|
|
{
|
|
vobsub_out_t *vob = (vobsub_out_t*)me;
|
|
if (vob->fidx)
|
|
fclose(vob->fidx);
|
|
if (vob->fsub)
|
|
fclose(vob->fsub);
|
|
free(vob);
|
|
}
|
|
|
|
void vobsub_out_output(void *me, const unsigned char *packet,
|
|
int len, double pts)
|
|
{
|
|
static double last_pts;
|
|
static int last_pts_set = 0;
|
|
vobsub_out_t *vob = (vobsub_out_t*)me;
|
|
if (vob->fsub) {
|
|
/* Windows' Vobsub require that every packet is exactly 2kB long */
|
|
unsigned char buffer[2048];
|
|
unsigned char *p;
|
|
int remain = 2048;
|
|
/* Do not output twice a line with the same timestamp, this
|
|
breaks Windows' Vobsub */
|
|
if (vob->fidx && (!last_pts_set || last_pts != pts)) {
|
|
static unsigned int last_h = 9999, last_m = 9999, last_s = 9999, last_ms = 9999;
|
|
unsigned int h, m, ms;
|
|
double s;
|
|
s = pts;
|
|
h = s / 3600;
|
|
s -= h * 3600;
|
|
m = s / 60;
|
|
s -= m * 60;
|
|
ms = (s - (unsigned int) s) * 1000;
|
|
if (ms >= 1000) /* prevent overfolws or bad float stuff */
|
|
ms = 0;
|
|
if (h != last_h || m != last_m || (unsigned int) s != last_s || ms != last_ms) {
|
|
fprintf(vob->fidx, "timestamp: %02u:%02u:%02u:%03u, filepos: %09lx\n",
|
|
h, m, (unsigned int) s, ms, ftell(vob->fsub));
|
|
last_h = h;
|
|
last_m = m;
|
|
last_s = (unsigned int) s;
|
|
last_ms = ms;
|
|
}
|
|
}
|
|
last_pts = pts;
|
|
last_pts_set = 1;
|
|
|
|
/* Packet start code: Windows' Vobsub needs this */
|
|
p = buffer;
|
|
*p++ = 0; /* 0x00 */
|
|
*p++ = 0;
|
|
*p++ = 1;
|
|
*p++ = 0xba;
|
|
*p++ = 0x40;
|
|
memset(p, 0, 9);
|
|
p += 9;
|
|
{ /* Packet */
|
|
static unsigned char last_pts[5] = { 0, 0, 0, 0, 0};
|
|
unsigned char now_pts[5];
|
|
int pts_len, pad_len, datalen = len;
|
|
pts *= 90000;
|
|
now_pts[0] = 0x21 | (((unsigned long)pts >> 29) & 0x0e);
|
|
now_pts[1] = ((unsigned long)pts >> 22) & 0xff;
|
|
now_pts[2] = 0x01 | (((unsigned long)pts >> 14) & 0xfe);
|
|
now_pts[3] = ((unsigned long)pts >> 7) & 0xff;
|
|
now_pts[4] = 0x01 | (((unsigned long)pts << 1) & 0xfe);
|
|
pts_len = memcmp(last_pts, now_pts, sizeof(now_pts)) ? sizeof(now_pts) : 0;
|
|
memcpy(last_pts, now_pts, sizeof(now_pts));
|
|
|
|
datalen += 3; /* Version, PTS_flags, pts_len */
|
|
datalen += pts_len;
|
|
datalen += 1; /* AID */
|
|
pad_len = 2048 - (p - buffer) - 4 /* MPEG ID */ - 2 /* payload len */ - datalen;
|
|
/* XXX - Go figure what should go here! In any case the
|
|
packet has to be completly filled. If I can fill it
|
|
with padding (0x000001be) latter I'll do that. But if
|
|
there is only room for 6 bytes then I can not write a
|
|
padding packet. So I add some padding in the PTS
|
|
field. This looks like a dirty kludge. Oh well... */
|
|
if (pad_len < 0) {
|
|
/* Packet is too big. Let's try ommiting the PTS field */
|
|
datalen -= pts_len;
|
|
pts_len = 0;
|
|
pad_len = 0;
|
|
} else if (pad_len > 6)
|
|
pad_len = 0;
|
|
datalen += pad_len;
|
|
|
|
*p++ = 0; /* 0x0e */
|
|
*p++ = 0;
|
|
*p++ = 1;
|
|
*p++ = 0xbd;
|
|
|
|
*p++ = (datalen >> 8) & 0xff; /* length of payload */
|
|
*p++ = datalen & 0xff;
|
|
*p++ = 0x80; /* System-2 (.VOB) stream */
|
|
*p++ = pts_len ? 0x80 : 0x00; /* pts_flags */
|
|
*p++ = pts_len + pad_len;
|
|
memcpy(p, now_pts, pts_len);
|
|
p += pts_len;
|
|
memset(p, 0, pad_len);
|
|
p += pad_len;
|
|
}
|
|
*p++ = 0x20 | vob->aid; /* aid */
|
|
if (fwrite(buffer, p - buffer, 1, vob->fsub) != 1
|
|
|| fwrite(packet, len, 1, vob->fsub) != 1)
|
|
perror("ERROR: vobsub write failed");
|
|
else
|
|
remain -= p - buffer + len;
|
|
|
|
/* Padding */
|
|
if (remain >= 6) {
|
|
p = buffer;
|
|
*p++ = 0x00;
|
|
*p++ = 0x00;
|
|
*p++ = 0x01;
|
|
*p++ = 0xbe;
|
|
*p++ = (remain - 6) >> 8;
|
|
*p++ = (remain - 6) & 0xff;
|
|
/* for better compression, blank this */
|
|
memset(buffer + 6, 0, remain - (p - buffer));
|
|
if (fwrite(buffer, remain, 1, vob->fsub) != 1)
|
|
perror("ERROR: vobsub padding write failed");
|
|
} else if (remain > 0) {
|
|
/* I don't know what to output. But anyway the block
|
|
needs to be 2KB big */
|
|
memset(buffer, 0, remain);
|
|
if (fwrite(buffer, remain, 1, vob->fsub) != 1)
|
|
perror("ERROR: vobsub blank padding write failed");
|
|
} else if (remain < 0)
|
|
fprintf(stderr,
|
|
"\nERROR: wrong thing happenned...\n"
|
|
" I wrote a %i data bytes spu packet and that's too long\n", len);
|
|
}
|
|
}
|