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Moritz Bunkus
parent
a8a6673418
commit
836d888534
@ -1,211 +0,0 @@
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/*
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ogmmerge -- utility for splicing together ogg bitstreams
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from component media subtypes
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r_microdvd.cpp
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MicroDVD text subtitle reader module
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Written by Moritz Bunkus <moritz@bunkus.org>
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Based on Xiph.org's 'oggmerge' found in their CVS repository
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See http://www.xiph.org
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Distributed under the GPL
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see the file COPYING for details
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or visit http://www.gnu.org/copyleft/gpl.html
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <ogg/ogg.h>
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#include "ogmmerge.h"
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#include "ogmstreams.h"
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#include "r_microdvd.h"
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#include "subtitles.h"
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int microdvd_reader_c::probe_file(mm_io_c *mm_io, int64_t size) {
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char chunk[2048];
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int i;
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if (mm_io->setFilePointer(0, seek_beginning) != 0)
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return 0;
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if (fgets(chunk, 2047) == NULL)
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return 0;
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if ((chunk[0] != '{') || !isdigit(chunk[1]))
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return 0;
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i = 2;
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while (isdigit(chunk[i]))
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i++;
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if ((chunk[i] != '}') || (chunk[i + 1] != '{'))
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return 0;
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i += 2;
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while (isdigit(chunk[i]))
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i++;
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if ((chunk[i] != '}') || (chunk[i + 1] == 0) || (chunk[i + 1] == '\n') ||
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(chunk[i + 1] == '\r'))
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return 0;
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if (mm_io->setFilePointer(0, seek_beginning) != 0)
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return 0;
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return 1;
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}
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microdvd_reader_c::microdvd_reader_c(char *fname, audio_sync_t *nasync,
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char **ncomments) throw (error_c) {
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if ((file = fopen(fname, "r")) == NULL)
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throw error_c("microdvd_reader: Could not open source file.");
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if (!microdvd_reader_c::probe_file(0))
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throw error_c("microdvd_reader: Source is not a valid MicroDVD file.");
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textsubspacketizer = new textsubs_packetizer_c(nasync);
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if (verbose)
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mxprint(stdout, "Using MicroDVD subtitle reader for %s.\n+-> Using " \
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"text subtitle output module for subtitles.\n", fname);
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}
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microdvd_reader_c::~microdvd_reader_c() {
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if (textsubspacketizer != NULL)
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delete textsubspacketizer;
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}
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int microdvd_reader_c::read() {
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ogg_int64_t start, end;
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char *subtitles, *s, *s2;
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subtitles_c subs;
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int i, j, lineno;
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if (video_fps < 0.0) {
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mxprint(stderr, "Error: microdvd_reader: You have to add a video source "
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"before a MicroDVD source. Otherwise the frame numbers cannot be "
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"converted to time stamps.");
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exit(1);
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}
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lineno = 0;
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while (1) {
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if (fgets(chunk, 2047) == NULL)
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break;
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lineno++;
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// {123}{4567}Some text|and even another line.
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if ((chunk[0] == 0) || (strchr("\n\r", chunk[0]) != NULL))
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continue;
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if ((chunk[0] != '{') || !isdigit(chunk[1])) {
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mxprint(stdout, "microdvd_reader: Warning: Unrecognized line %d. "
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"Ignored.\n", lineno);
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continue;
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}
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i = 2;
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while (isdigit(chunk[i]))
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i++;
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if ((chunk[i] != '}') || (chunk[i + 1] != '{')) {
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mxprint(stdout, "microdvd_reader: Warning: Unrecognized line %d. "
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"Ignored.\n", lineno);
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continue;
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}
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chunk[i] = 0;
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start = strtol(&chunk[1], NULL, 10);
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if ((start < 0) || (errno != 0)) {
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mxprint(stdout, "microdvd_reader: Warning: Bad start frame '%s' on line "
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"%d. Ignored.\n", &chunk[1], lineno);
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continue;
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}
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i += 2;
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j = i;
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while (isdigit(chunk[i]))
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i++;
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if ((chunk[i] != '}') || (chunk[i + 1] == 0)) {
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mxprint(stdout, "microdvd_reader: Warning: Unrecognized line %d. "
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"Ignored.\n", lineno);
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continue;
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}
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if ((chunk[i + 1] == '\n') || (chunk[i + 1] == '\r'))
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continue;
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chunk[i] = 0;
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end = strtol(&chunk[j], NULL, 10);
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if ((end < 0) || (errno != 0)) {
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mxprint(stdout, "microdvd_reader: Warning: Bad end frame '%s' on line "
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"%d. Ignored.\n", &chunk[j], lineno);
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continue;
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}
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start = (ogg_int64_t)(start * 1000 / video_fps);
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end = (ogg_int64_t)(end * 1000 / video_fps);
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subtitles = NULL;
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s = &chunk[i + 1];
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s2 = &s[strlen(s) - 1];
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while ((s2 != s) && ((*s2 == '\n') || (*s2 == '\r'))) {
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*s2 = 0;
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s2--;
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}
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if (*s == 0) {
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mxprint(stdout, "microdvd_reader: Warning: Unrecognized line %d. "
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"Ignored.\n", lineno);
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continue;
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}
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while (s != NULL) {
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s2 = strchr(s, '|');
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if (s2 != NULL)
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*s2 = 0;
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if (subtitles == NULL) {
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subtitles = safestrdup(s);
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} else {
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subtitles = (char *)saferealloc(subtitles, strlen(s) + 2 +
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strlen(subtitles));
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sprintf(&subtitles[strlen(subtitles)], "\n%s", s);
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}
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if (s2 != NULL)
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s = &s2[1];
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else
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s = NULL;
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}
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if (subtitles != NULL) {
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subs.add(start, end, subtitles);
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safefree(subtitles);
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subtitles = NULL;
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}
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}
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if ((subs.check() != 0) && verbose)
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mxprint(stdout, "MicroDVD_reader: Warning: The subtitle file seems to be "
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"badly broken. The output file might not be playable "
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"correctly.\n");
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subs.process(textsubspacketizer);
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return 0;
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}
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int microdvd_reader_c::serial_in_use(int serial) {
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return textsubspacketizer->serial_in_use(serial);
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}
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ogmmerge_page_t *microdvd_reader_c::get_header_page(int header_type) {
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return textsubspacketizer->get_header_page(header_type);
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}
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ogmmerge_page_t *microdvd_reader_c::get_page() {
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return textsubspacketizer->get_page();
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}
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int microdvd_reader_c::display_priority() {
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return DISPLAYPRIORITY_LOW;
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}
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void microdvd_reader_c::reset() {
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if (textsubspacketizer != NULL)
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textsubspacketizer->reset();
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}
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static char wchar[] = "-\\|/-\\|/-";
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void microdvd_reader_c::display_progress() {
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mxprint(stdout, "working... %c\r", wchar[act_wchar]);
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act_wchar++;
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if (act_wchar == strlen(wchar))
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act_wchar = 0;
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fflush(stdout);
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}
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