mirror of https://github.com/mpv-player/mpv
1453 lines
47 KiB
C
1453 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 "mpcommon.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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/**********************************************************************
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* Packet queue
|
|
**********************************************************************/
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|
|
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typedef struct {
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unsigned int pts100;
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off_t filepos;
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unsigned int size;
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unsigned char *data;
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} 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;
|
|
unsigned int packets_size;
|
|
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)
|
|
{
|
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pkt->pts100 = 0;
|
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pkt->filepos = 0;
|
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pkt->size = 0;
|
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pkt->data = NULL;
|
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}
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|
|
|
static void packet_destroy(packet_t *pkt)
|
|
{
|
|
if (pkt->data)
|
|
free(pkt->data);
|
|
}
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|
|
|
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 && queue->current_index > 0) {
|
|
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 %s\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",
|
|
mplayer_version, 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);
|
|
}
|
|
}
|