2 #define _FILE_OFFSET_BITS 64
18 #include <sys/ioctl.h>
26 #include <dvdread/dvd_reader.h>
27 #include <dvdread/dvd_udf.h>
28 #include <dvdread/ifo_read.h>
29 #include <dvdread/ifo_types.h>
32 #define SECTORS(n) (((n) + (SECTORSZ - 1))/SECTORSZ)
34 #define CTYPE_HACK(fn, ch) fn((unsigned char)(ch))
35 #define ISDIGIT(ch) CTYPE_HACK(isdigit, ch)
36 #define ISSPACE(ch) CTYPE_HACK(isspace, ch)
38 #define N(v) (sizeof(v)/sizeof((v)[0]))
40 enum { RAW, IFO, VOB, BUP };
41 typedef uint_least32_t ident;
43 static inline ident mkident(unsigned kind, unsigned title, unsigned part)
44 { return (((ident)kind << 0) | ((ident)title << 8) | ((ident)part << 16)); }
45 static inline unsigned id_kind(ident id) { return ((id >> 0)&0x0ff); }
46 static inline unsigned id_title(ident id) { return ((id >> 8)&0x0ff); }
47 static inline unsigned id_part(ident id) { return ((id >> 16)&0x0ff); }
49 static const char *prog = "<unset>";
50 static int status = 0;
52 static void usage(FILE *fp)
55 "usage: %s [-c] [-D DEV] [-R MAP] "
56 "[-b OUTMAP] [-o OUTFILE] [-r [START]-[END]]\n",
60 static void vmoan(const char *fmt, va_list ap)
61 { fprintf(stderr, "%s: ", prog); vfprintf(stderr, fmt, ap); }
63 __attribute__((format(printf, 1, 2)))
64 static void moan(const char *fmt, ...)
68 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
72 __attribute__((noreturn, format(printf, 1, 2)))
73 static void bail(const char *fmt, ...)
77 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
82 __attribute__((noreturn, format(printf, 2, 3)))
83 static void bail_syserr(int err, const char *fmt, ...)
87 va_start(ap, fmt); vmoan(fmt, ap); va_end(ap);
88 if (err) fprintf(stderr, ": %s", strerror(errno));
93 #define MAXFNSZ (1 + 8 + 1 + 12 + 1)
95 static void store_filename(char *buf, ident id)
97 switch (id_kind(id)) {
99 sprintf(buf, "#<raw device>");
102 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.IFO");
103 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.IFO", id_title(id));
106 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.BUP");
107 else sprintf(buf, "/VIDEO_TS/VTS_%02u_0.BUP", id_title(id));
110 if (!id_title(id)) sprintf(buf, "/VIDEO_TS/VIDEO_TS.VOB");
112 sprintf(buf, "/VIDEO_TS/VTS_%02u_%u.VOB", id_title(id), id_part(id));
119 #define DEFVEC(vtype, etype) \
120 typedef struct { etype *v; size_t n, sz; } vtype
121 #define VEC_INIT { 0, 0, 0 }
122 #define VEC_FREE(vv) do { \
123 free((vv)->v); (vv)->v 0; (vv)->n = (vv)->sz = 0; \
125 #define VEC_PUSH(p, vv) do { \
127 if ((vv)->n >= (vv)->sz) { \
128 (vv)->sz = (vv)->sz ? 2*(vv)->sz : 32; \
129 _want = (vv)->sz*sizeof(*(vv)->v); \
130 (vv)->v = realloc((vv)->v, _want); \
131 if (!(vv)->v) bail("out of memory allocating %zu bytes", _want); \
133 (p) = &(vv)->v[(vv)->n++]; \
136 typedef uint_least32_t secaddr;
137 #define PRIuSEC PRIuLEAST32
139 #define MAXFILES (1 + 2*99 + 1)
144 DEFVEC(file_v, struct file);
145 static file_v filetab = VEC_INIT;
147 enum { EV_STOP, EV_BEGIN, EV_END, EV_WRITE };
149 unsigned char ev, file;
152 DEFVEC(event_v, struct event);
153 static event_v eventq = VEC_INIT;
155 typedef uint_least32_t bits;
156 static bits live[(MAXFILES + 31)/32];
158 static inline int livep(unsigned i)
159 { return (live[i/32]&((bits)1 << (i%32))); }
160 static inline void set_live(unsigned i)
161 { live[i/32] |= (bits)1 << (i%32); }
162 static inline void clear_live(unsigned i)
163 { live[i/32] &= ~((bits)1 << (i%32)); }
164 static inline int least_live(void)
166 unsigned i, n = (filetab.n + 32)/32;
169 for (i = 0; i < n; i++) { b = live[i]; if (b) goto found; }
173 if (!(b&0x0000ffff)) { b >>= 16; i += 16; }
174 if (!(b&0x000000ff)) { b >>= 8; i += 8; }
175 if (!(b&0x0000000f)) { b >>= 4; i += 4; }
176 if (!(b&0x00000003)) { b >>= 2; i += 2; }
177 if (!(b&0x00000001)) { b >>= 1; i += 1; }
182 static void put_event(unsigned evtype, unsigned file, secaddr pos)
186 VEC_PUSH(ev, &eventq);
187 ev->ev = evtype; ev->file = file; ev->pos = pos;
190 static void put_file(ident id, secaddr start, secaddr end)
195 VEC_PUSH(f, &filetab); i = f - filetab.v;
196 f->id = id; f->start = start; f->end = end;
197 put_event(EV_BEGIN, i, start);
198 put_event(EV_END, i, end);
201 static void put_menu(dvd_reader_t *dvd, unsigned title)
203 ident id = mkident(VOB, title, 0);
207 store_filename(fn, id);
208 start = UDFFindFile(dvd, fn, &len); if (!start) return;
210 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
211 start, start + SECTORS(len), fn);
213 put_file(id, start, start + SECTORS(len));
216 static void put_title(dvd_reader_t *dvd, unsigned title)
219 secaddr start[9], len[9];
222 for (i = 0; i < 9; i++) {
223 store_filename(fn, mkident(VOB, title, i + 1));
224 start[i] = UDFFindFile(dvd, fn, &len[i]); if (!start[i]) break;
226 npart = i; if (!npart) return;
229 for (i = 0; i < npart; i++) {
230 store_filename(fn, mkident(VOB, title, i + 1));
231 printf(";; %8"PRIuSEC" .. %-8"PRIuSEC": %s\n",
232 start[i], start[i] + SECTORS(len[i]), fn);
237 for (i = 0; i < npart - 1; i++) {
239 bail("title %u part %u length = %"PRIuSEC" not a multiple of %d",
240 title, i, len[i], SECTORSZ);
241 if (start[i] + len[i]/SECTORSZ != start[i + 1])
243 ("title %u part %u end = %"PRIuSEC" /= part %u start = %"PRIuSEC"",
244 title, i, start[i] + len[i]/SECTORSZ, i + 1, start[i + 1]);
247 put_file(mkident(VOB, title, 1),
248 start[0], start[npart - 1] + SECTORS(len[npart - 1]));
251 static int compare_event(const void *a, const void *b)
253 const struct event *eva = a, *evb = b;
255 if (eva->pos < evb->pos) return (-1);
256 else if (eva->pos > evb->pos) return (+1);
258 if (eva->ev < evb->ev) return (-1);
259 else if (eva->ev > evb->ev) return (+1);
261 if (eva->file < evb->file) return (-1);
262 else if (eva->file > evb->file) return (+1);
267 static int progresslen = 0;
269 static void clear_progress_internal(void)
270 { while (progresslen) { fputs("\b \b", stdout); progresslen--; } }
271 static void clear_progress(void)
272 { clear_progress_internal(); fflush(stdout); }
273 static void vappend_progress(const char *fmt, va_list ap)
274 { progresslen += vprintf(fmt, ap); }
275 __attribute__((format(printf, 1, 2)))
276 static void append_progress(const char *fmt, ...)
281 vappend_progress(fmt, ap);
284 __attribute__((format(printf, 1, 2)))
285 static void print_progress(const char *fmt, ...)
290 clear_progress_internal();
291 vappend_progress(fmt, ap);
302 #define SRCF_ALLPROGRESS 1u
303 secaddr last_pos, limit, nsectors, ndone;
304 struct timeval last_time;
306 const char *mapfile; FILE *mapfp;
308 #define SOURCE_INIT { 0, -1, 0, 0, 0, 0, 0, 0, 0, { 0, 0 }, 0.0, 0.0, 0, 0 }
310 static void report_progress(struct source *src, secaddr pos)
315 double percent, t, f, g, rate;
319 #define BETA (1 - ALPHA)
321 gettimeofday(&now, 0);
322 t = (now.tv_sec - src->last_time.tv_sec) +
323 (now.tv_usec - src->last_time.tv_usec)/1000000.0;
326 g = src->wcount ? pow(BETA, t) : 0.0; f = (1 - g)/(1 - BETA);
327 src->wsum = f*(pos - src->last_pos)/t + g*src->wsum;
328 src->wcount = f + g*src->wcount;
329 src->ndone += pos - src->last_pos;
330 src->last_time = now; src->last_pos = pos;
333 if (!src->wsum || !src->wcount)
334 { rate = 0; strcpy(etastr, "???"); }
336 rate = src->wsum/src->wcount;
337 eta = (int)((src->nsectors - src->ndone)/rate);
338 sprintf(etastr, "%d:%02d:%02d", eta/3600, (eta/60)%60, eta%60);
341 rate *= SECTORSZ; unit = "";
342 if (rate > 128) { rate /= 1024; unit = "k"; }
343 if (rate > 128) { rate /= 1024; unit = "M"; }
344 if (rate > 128) { rate /= 1024; unit = "G"; }
346 if (src->f&SRCF_ALLPROGRESS) percent = pos*100.0/src->limit;
347 else percent = src->ndone*100.0/src->nsectors;
349 ("copied %.1f%% (%"PRIuSEC" of %"PRIuSEC"; %.1f %sB/s, ETA %s)",
350 percent, pos, src->limit, rate, unit, etastr);
351 if (src->file && id_kind(src->file->id) == VOB) {
352 append_progress(" -- %s %d %3.1f%%",
353 id_part(src->file->id) ? "title" : "menu",
354 id_title(src->file->id),
355 (pos - src->file->start)*100.0/
356 (src->file->end - src->file->start));
363 static void report_bad_blocks_progress(struct source *src,
364 secaddr lo, secaddr hi, int err)
366 report_progress(src, hi);
368 if (lo == hi) append_progress(": retrying bad sector");
370 append_progress(": %"PRIuSEC" bad %s",
371 hi - lo, hi == lo + 1 ? "sector" : "sectors");
372 if (err != EIO) append_progress(" (%s)", strerror(err));
376 static ssize_t read_sectors(struct source *src, secaddr pos,
377 void *buf, secaddr want)
383 n = DVDReadBlocks(src->vob, pos - src->file->start, want, buf);
384 else if (src->file) {
385 if (lseek(src->dvdfd, (off_t)pos*SECTORSZ, SEEK_SET) < 0)
386 bail_syserr(errno, "failed to seek to sector %"PRIuSEC"", pos);
387 n = read(src->dvdfd, buf, want*SECTORSZ);
388 if (n >= 0) n /= SECTORSZ;
390 memset(buf, 0, want*SECTORSZ);
394 if (n < 0 && errno == EINTR) goto again;
398 static void carefully_write(int fd, const void *buf, size_t sz)
400 const unsigned char *p = buf;
405 n = write(fd, p, sz);
407 if (errno == EINTR) continue;
408 bail_syserr(errno, "failed to write to output file");
410 if (!n) bail("unexpected short write to output file");
415 static void emit(struct source *src, int outfd, secaddr start, secaddr end)
417 #define BUFSECTORS 512
420 unsigned char buf[BUFSECTORS*SECTORSZ];
422 secaddr bad_lo, bad_hi, good, step;
425 static int first_time = 1;
432 least = least_live();
435 printf(";; %8"PRIuSEC" .. %"PRIuSEC"\n", start, end);
437 for (i = 0; i < filetab.n; i++) {
438 if (!livep(i)) continue;
439 if (act == -1) act = i;
440 f = &filetab.v[i]; store_filename(fn, f->id);
441 printf(";;\t\t%8"PRIuSEC" .. %-8"PRIuSEC" %s\n",
442 start - f->start, end - f->start, fn);
444 if (act == -1) printf(";;\t\t#<no live source>\n");
445 assert(act == least);
449 { src->file = 0; src->vob = 0; }
451 src->file = &filetab.v[least];
452 switch (id_kind(src->file->id)) {
457 if (first_time) { clear_progress(); first_time = 0; }
458 src->vob = DVDOpenFile(src->dvd, id_title(src->file->id),
459 id_part(src->file->id)
460 ? DVD_READ_TITLE_VOBS
461 : DVD_READ_MENU_VOBS);
463 bail("failed to open %s %u",
464 id_part(src->file->id) ? "title" : "menu",
465 id_title(src->file->id));
474 want = end - pos; if (want > BUFSECTORS) want = BUFSECTORS;
475 n = read_sectors(src, pos, buf, want);
478 report_bad_blocks_progress(src, pos, pos, errno);
479 for (i = 0; i < 4; i++) {
480 n = read_sectors(src, pos, buf, 1);
483 moan("sector %"PRIuSEC" read ok after retry", pos);
484 bad_lo = bad_hi = pos;
489 bad_lo = pos; step = 1; bad_hi = pos + 1;
491 report_bad_blocks_progress(src, bad_lo, bad_hi, errno);
494 moan("giving up on this extent");
495 n = 0; goto recovered;
498 if (step > end - bad_lo) step = end - bad_lo;
499 pos = bad_lo + step - 1;
500 n = read_sectors(src, pos, buf, 1);
506 while (good > bad_hi) {
507 report_bad_blocks_progress(src, bad_lo, bad_hi, errno);
508 pos = bad_hi + (good - bad_hi)/2;
509 n = read_sectors(src, pos, buf, 1);
510 if (n > 0) good = pos;
511 else bad_hi = pos + 1;
514 if (bad_hi > bad_lo) {
516 moan("skipping %"PRIuSEC" bad sectors (%"PRIuSEC" .. %"PRIuSEC")",
517 bad_hi - bad_lo, bad_lo, bad_hi);
520 src->mapfp = fopen(src->mapfile, "w");
522 bail_syserr(errno, "failed to open bad-sector map file `%s'",
524 fprintf(src->mapfp, "## bad sector map\n\n");
526 fprintf(src->mapfp, "%"PRIuSEC" %"PRIuSEC"\n", bad_lo, bad_hi);
528 if (ferror(src->mapfp))
529 bail_syserr(errno, "error writing bad-sector map file");
532 lseek(outfd, (off_t)(bad_hi - bad_lo)*SECTORSZ, SEEK_CUR) < 0)
533 bail_syserr(errno, "failed to seek past bad sectors");
539 if (n > 0) { carefully_write(outfd, buf, n*SECTORSZ); pos += n; }
540 report_progress(src, pos); fflush(stdout);
543 if (src->vob) { DVDCloseFile(src->vob); src->vob = 0; }
549 static void logfn(void *p, dvd_logger_level_t lev,
550 const char *fmt, va_list ap)
553 case DVD_LOGGER_LEVEL_ERROR:
554 fprintf("%s (libdvdread error): ", prog);
556 case DVD_LOGGER_LEVEL_WARN:
557 fprintf("%s (libdvdread warning): ", prog);
562 vfprintf(stderr, fmt, ap);
565 static const dvd_logger_cb logger = { logfn };
572 #define BUF_INIT { 0, 0, 0 }
573 #define BUF_REWIND(b) do { (b)->n = 0; } while (0)
574 #define BUF_FREE(b) do { \
576 free(_b->p); _b->p = 0; _b->n = _b->sz = 0; \
578 #define BUF_PUTC(b, ch) do { \
579 struct buf *_b = (b); \
580 if (_b->n >= _b->sz) { \
581 _b->sz = _b->sz ? 2*_b->sz : 32; \
582 _b->p = realloc(_b->p, _b->sz); \
583 if (!_b->p) bail("out of memory allocating %zu bytes", _b->sz); \
585 _b->p[_b->n] = (ch); \
588 static int read_line(FILE *fp, struct buf *b)
595 else if (ch != '\n') do {
596 BUF_PUTC(b, ch); b->n++;
598 } while (ch != EOF && ch != '\n');
603 int main(int argc, char *argv[])
610 struct source src = SOURCE_INIT;
611 unsigned long start, end;
612 const struct event *ev;
613 const char *device = "/dev/dvd", *outfile = 0;
614 int opt, err, outfd = -1, blksz;
618 struct buf buf = BUF_INIT;
621 const struct file *file;
626 #define f_continue 2u
630 p = strrchr(argv[0], '/'); prog = p ? p + 1 : argv[0];
632 opt = getopt(argc, argv, "hD:FR:b:co:r:"); if (opt < 0) break;
634 case 'h': usage(stderr); exit(0);
635 case 'D': device = optarg; break;
636 case 'F': f |= f_fixup; break;
638 fp = fopen(optarg, "r");
640 bail_syserr(errno, "failed to open ranges file `%s'", optarg);
643 BUF_REWIND(&buf); if (read_line(fp, &buf)) break;
645 while (ISSPACE(*p)) p++;
646 if (!*p || *p == '#') continue;
647 if (!ISDIGIT(*p)) goto bad_range_file;
648 start = strtoul(p, &p, 0);
649 if (errno || !ISSPACE(*p)) goto bad_range_file;
650 do p++; while (ISSPACE(*p));
651 if (!ISDIGIT(*p)) goto bad_range_file;
652 end = strtoul(p, &p, 0);
653 if (errno || (*p && !ISSPACE(*p))) goto bad_range_file;
654 while (ISSPACE(*p)) p++;
655 if (*p) goto bad_range_file;
656 if (start > end) goto bad_range_file;
658 put_event(EV_WRITE, 0, start);
659 put_event(EV_STOP, 0, end);
663 bail_syserr(errno, "failed to read ranges file `%s'", optarg);
666 bail("bad range `%s' at `%s' line %zu", buf.p, optarg, i);
668 if (src.mapfile) bail("can't have multiple map files");
669 src.mapfile = optarg;
671 case 'c': f |= f_continue; break;
672 case 'o': outfile = optarg; break;
674 err = errno; errno = 0;
679 if (!ISDIGIT(*p)) goto bad_range;
680 start = strtoul(p, &p, 0);
681 if (errno || *p != '-') goto bad_range;
685 put_event(EV_WRITE, 0, start);
687 if (!ISDIGIT(*p)) goto bad_range;
688 end = strtoul(p, &p, 0);
689 if (errno || *p) goto bad_range;
690 if (start > end) goto bad_range;
692 put_event(EV_WRITE, 0, start);
693 put_event(EV_STOP, 0, end);
699 bail("bad range `%s'", optarg);
701 default: f |= f_bogus; break;
704 if (optind < argc) f |= f_bogus;
705 if (f&f_bogus) { usage(stderr); exit(2); }
707 src.dvdfd = open(device, O_RDONLY);
709 bail_syserr(errno, "failed to open device `%s'", device);
710 if (fstat(src.dvdfd, &st))
711 bail_syserr(errno, "failed to stat device `%s'", device);
712 if (S_ISREG(st.st_mode)) {
715 } else if (S_ISBLK(st.st_mode)) {
716 if (ioctl(src.dvdfd, BLKSSZGET, &blksz))
717 bail_syserr(errno, "failed to get block size for `%s'", device);
718 if (ioctl(src.dvdfd, BLKGETSIZE64, &volsz))
719 bail_syserr(errno, "failed to get volume size for `%s'", device);
721 bail("can't use `%s' as source: expected file or block device", device);
723 if (blksz != SECTORSZ)
724 bail("device `%s' block size %d /= %d", device, blksz, SECTORSZ);
726 bail("device `%s' volume size %"PRIu64" not a multiple of %d",
727 device, volsz, SECTORSZ);
730 outfd = open(outfile, O_WRONLY | O_CREAT, 0666);
732 bail_syserr(errno, "failed to create output file `%s'", outfile);
736 if (!outfile) bail("can't continue without output file");
737 off = lseek(outfd, 0, SEEK_END);
739 bail_syserr(errno, "failed to seek to end of output file `%s'",
741 put_event(EV_WRITE, 0, off/SECTORSZ);
742 } else if (!eventq.n && !(f&f_fixup))
743 put_event(EV_WRITE, 0, 0);
746 src.dvd = DVDOpen2(0, &logger, device);
748 src.dvd = DVDOpen(device);
750 if (!src.dvd) bail("failed to open DVD on `%s'", device);
752 /* It's fast enough just to check everything. */
753 put_menu(src.dvd, 0);
754 for (i = 1; i < 100; i++) {
755 put_menu(src.dvd, i);
756 put_title(src.dvd, i);
758 put_file(mkident(RAW, 0, 0), 0, volsz/SECTORSZ);
759 assert(filetab.n <= MAXFILES);
761 for (i = 0, src.limit = 0; i < filetab.n; i++)
762 if (filetab.v[i].end > src.limit) src.limit = filetab.v[i].end;
764 if (end > src.limit) end = src.limit;
767 printf("\n;; files:\n");
768 for (i = 0; i < filetab.n; i++) {
769 file = &filetab.v[i];
770 store_filename(fn, file->id);
771 printf(";;\t%8"PRIuSEC" %s\n", file->start, fn);
775 qsort(eventq.v, eventq.n, sizeof(struct event), compare_event);
777 f &= ~f_write; start = 0; n = 0;
778 for (i = 0; i < eventq.n; i++) {
783 bail("overlapping ranges: range from %lu still open at %"PRIuSEC"",
785 n++; f |= f_write; start = ev->pos;
793 f &= ~f_write; start = 0;
794 for (i = 0; i < eventq.n; i++) {
797 case EV_WRITE: start = ev->pos; f |= f_write; break;
798 case EV_STOP: src.nsectors += ev->pos - start; f &= ~f_write; break;
800 if (ev->pos >= src.limit) break;
801 if (f&f_fixup) start = ev->pos;
805 put_event(EV_WRITE, 0, start);
809 src.nsectors += src.limit - start;
810 put_event(EV_STOP, 0, src.limit);
812 if (n == 1 && (f&f_write))
813 src.f |= SRCF_ALLPROGRESS;
817 printf("\n;; event sweep:\n");
819 for (pos = 0, i = 0; i < eventq.n; i++) {
822 if (f&f_write) emit(&src, outfd, pos, ev->pos);
833 store_filename(fn, filetab.v[ev->file].id);
835 printf(";; %8"PRIuSEC": begin `%s'\n", pos, fn);
839 gettimeofday(&src.last_time, 0); src.last_pos = pos;
841 lseek(outfd, (off_t)ev->pos*SECTORSZ, SEEK_SET) < 0)
843 "failed to seek to resume position "
844 "(sector %"PRIuSEC") in output file `%s'",
848 printf(";; %8"PRIuSEC": begin write\n", pos);
856 printf(";; %8"PRIuSEC": end write\n", pos);
860 clear_live(ev->file);
862 store_filename(fn, filetab.v[ev->file].id);
864 printf(";; %8"PRIuSEC": end `%s'\n", pos, fn);
871 if (progresslen) putchar('\n');
873 if (outfd >= 0 && ftruncate(outfd, (off_t)src.limit*SECTORSZ) < 0)
874 bail_syserr(errno, "failed to set output file `%s' length", outfile);
876 if (src.dvd) DVDClose(src.dvd);
877 if (src.dvdfd >= 0) close(src.dvdfd);
878 if (outfd >= 0) close(outfd);
880 if (ferror(src.mapfp) || fclose(src.mapfp))
881 bail_syserr(errno, "error writing bad-sector map file");