1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (C) 2003 5 * Hidetoshi Shimokawa. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * 18 * This product includes software developed by Hidetoshi Shimokawa. 19 * 20 * 4. Neither the name of the author nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 #include <sys/param.h> 39 #include <sys/ioctl.h> 40 #include <sys/time.h> 41 #include <sys/types.h> 42 #include <sys/uio.h> 43 44 #if __FreeBSD_version >= 500000 45 #include <arpa/inet.h> 46 #endif 47 48 #include <err.h> 49 #include <errno.h> 50 #include <unistd.h> 51 #include <fcntl.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <sysexits.h> 56 57 #include <dev/firewire/firewire.h> 58 #include <dev/firewire/iec68113.h> 59 60 #include "fwmethods.h" 61 62 #define DEBUG 0 63 #define FIX_FRAME 1 64 65 struct frac { 66 int n,d; 67 }; 68 69 struct frac frame_cycle[2] = { 70 {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ 71 {320, 1}, /* PAL 8000 cycle / 25 Hz */ 72 }; 73 int npackets[] = { 74 250 /* NTSC */, 75 300 /* PAL */ 76 }; 77 struct frac pad_rate[2] = { 78 {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ 79 {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ 80 }; 81 char *system_name[] = {"NTSC", "PAL"}; 82 int frame_rate[] = {30, 25}; 83 84 #define PSIZE 512 85 #define DSIZE 480 86 #define NCHUNK 64 87 88 #define NPACKET_R 256 89 #define NPACKET_T 255 90 #define TNBUF 100 /* XXX too large value causes block noise */ 91 #define NEMPTY 10 /* depends on TNBUF */ 92 #define RBUFSIZE (PSIZE * NPACKET_R) 93 #define MAXBLOCKS (300) 94 #define CYCLE_FRAC 0xc00 95 96 void 97 dvrecv(int d, const char *filename, char ich, int count) 98 { 99 struct fw_isochreq isoreq; 100 struct fw_isobufreq bufreq; 101 struct dvdbc *dv; 102 struct ciphdr *ciph; 103 struct fw_pkt *pkt; 104 char *pad, *buf; 105 u_int32_t *ptr; 106 int len, tlen, npad, fd, k, m, vec, system = -1, nb; 107 int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; 108 struct iovec wbuf[NPACKET_R]; 109 110 if(strcmp(filename, "-") == 0) { 111 fd = STDOUT_FILENO; 112 } else { 113 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); 114 if (fd == -1) 115 err(EX_NOINPUT, "%s", filename); 116 } 117 buf = malloc(RBUFSIZE); 118 pad = malloc(DSIZE*MAXBLOCKS); 119 memset(pad, 0xff, DSIZE*MAXBLOCKS); 120 bzero(wbuf, sizeof(wbuf)); 121 122 bufreq.rx.nchunk = NCHUNK; 123 bufreq.rx.npacket = NPACKET_R; 124 bufreq.rx.psize = PSIZE; 125 bufreq.tx.nchunk = 0; 126 bufreq.tx.npacket = 0; 127 bufreq.tx.psize = 0; 128 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 129 err(1, "ioctl FW_SSTBUF"); 130 131 isoreq.ch = ich & 0x3f; 132 isoreq.tag = (ich >> 6) & 3; 133 134 if (ioctl(d, FW_SRSTREAM, &isoreq) < 0) 135 err(1, "ioctl"); 136 137 k = m = 0; 138 while (count <= 0 || k <= count) { 139 #if 0 140 tlen = 0; 141 while ((len = read(d, buf + tlen, PSIZE 142 /* RBUFSIZE - tlen */)) > 0) { 143 if (len < 0) { 144 if (errno == EAGAIN) { 145 fprintf(stderr, "(EAGAIN)\n"); 146 fflush(stderr); 147 if (len <= 0) 148 continue; 149 } else 150 err(1, "read failed"); 151 } 152 tlen += len; 153 if ((RBUFSIZE - tlen) < PSIZE) 154 break; 155 }; 156 #else 157 tlen = len = read(d, buf, RBUFSIZE); 158 if (len < 0) { 159 if (errno == EAGAIN) { 160 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 161 fflush(stderr); 162 if (len <= 0) 163 continue; 164 } else 165 err(1, "read failed"); 166 } 167 #endif 168 vec = 0; 169 ptr = (u_int32_t *) buf; 170 again: 171 pkt = (struct fw_pkt *) ptr; 172 #if DEBUG 173 fprintf(stderr, "%08x %08x %08x %08x\n", 174 htonl(ptr[0]), htonl(ptr[1]), 175 htonl(ptr[2]), htonl(ptr[3])); 176 #endif 177 ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ 178 if (ciph->fmt != CIP_FMT_DVCR) 179 errx(1, "unknown format 0x%x", ciph->fmt); 180 ptr = (u_int32_t *) (ciph + 1); /* skip cip header */ 181 #if DEBUG 182 if (ciph->fdf.dv.cyc != 0xffff && k == 0) { 183 fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); 184 } 185 #endif 186 if (pkt->mode.stream.len <= sizeof(struct ciphdr)) 187 /* no payload */ 188 goto next; 189 for (dv = (struct dvdbc *)ptr; 190 (char *)dv < (char *)(ptr + ciph->len); 191 dv+=6) { 192 193 #if DEBUG 194 fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); 195 #endif 196 if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { 197 if (system < 0) { 198 system = ciph->fdf.dv.fs; 199 fprintf(stderr, "%s\n", system_name[system]); 200 } 201 202 /* Fix DSF bit */ 203 if (system == 1 && 204 (dv->payload[0] & DV_DSF_12) == 0) 205 dv->payload[0] |= DV_DSF_12; 206 nb = nblocks[system]; 207 fprintf(stderr, "%d:%02d:%02d %d\r", 208 k / (3600 * frame_rate[system]), 209 (k / (60 * frame_rate[system])) % 60, 210 (k / frame_rate[system]) % 60, 211 k % frame_rate[system]); 212 213 #if FIX_FRAME 214 if (m > 0 && m != nb) { 215 /* padding bad frame */ 216 npad = ((nb - m) % nb); 217 if (npad < 0) 218 npad += nb; 219 fprintf(stderr, "\n%d blocks padded\n", 220 npad); 221 npad *= DSIZE; 222 wbuf[vec].iov_base = pad; 223 wbuf[vec++].iov_len = npad; 224 if (vec >= NPACKET_R) { 225 writev(fd, wbuf, vec); 226 vec = 0; 227 } 228 } 229 #endif 230 k++; 231 fflush(stderr); 232 m = 0; 233 } 234 if (k == 0 || (count > 0 && k > count)) 235 continue; 236 m++; 237 wbuf[vec].iov_base = (char *) dv; 238 wbuf[vec++].iov_len = DSIZE; 239 if (vec >= NPACKET_R) { 240 writev(fd, wbuf, vec); 241 vec = 0; 242 } 243 } 244 ptr = (u_int32_t *)dv; 245 next: 246 if ((char *)ptr < buf + tlen) 247 goto again; 248 if (vec > 0) 249 writev(fd, wbuf, vec); 250 } 251 if (fd != STDOUT_FILENO) 252 close(fd); 253 fprintf(stderr, "\n"); 254 } 255 256 257 void 258 dvsend(int d, const char *filename, char ich, int count) 259 { 260 struct fw_isochreq isoreq; 261 struct fw_isobufreq bufreq; 262 struct dvdbc *dv; 263 struct fw_pkt *pkt; 264 int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; 265 int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac; 266 struct iovec wbuf[TNBUF*2 + NEMPTY]; 267 char *pbuf; 268 u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3]; 269 struct ciphdr *ciph; 270 struct timeval start, end; 271 double rtime; 272 273 fd = open(filename, O_RDONLY); 274 if (fd == -1) 275 err(EX_NOINPUT, "%s", filename); 276 277 pbuf = malloc(DSIZE * TNBUF); 278 bzero(wbuf, sizeof(wbuf)); 279 280 bufreq.rx.nchunk = 0; 281 bufreq.rx.npacket = 0; 282 bufreq.rx.psize = 0; 283 bufreq.tx.nchunk = NCHUNK; 284 bufreq.tx.npacket = NPACKET_T; 285 bufreq.tx.psize = PSIZE; 286 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 287 err(1, "ioctl FW_SSTBUF"); 288 289 isoreq.ch = ich & 0x3f; 290 isoreq.tag = (ich >> 6) & 3; 291 292 if (ioctl(d, FW_STSTREAM, &isoreq) < 0) 293 err(1, "ioctl FW_STSTREAM"); 294 295 iso_data = 0; 296 pkt = (struct fw_pkt *) &iso_data; 297 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 298 pkt->mode.stream.sy = 0; 299 pkt->mode.stream.tcode = FWTCODE_STREAM; 300 pkt->mode.stream.chtag = ich; 301 iso_empty = iso_data; 302 pkt = (struct fw_pkt *) &iso_empty; 303 pkt->mode.stream.len = sizeof(struct ciphdr); 304 305 bzero(hdr[0], sizeof(hdr[0])); 306 hdr[0][0] = iso_data; 307 ciph = (struct ciphdr *)&hdr[0][1]; 308 ciph->src = 0; /* XXX */ 309 ciph->len = 120; 310 ciph->dbc = 0; 311 ciph->eoh1 = 1; 312 ciph->fdf.dv.cyc = 0xffff; 313 314 for (i = 1; i < TNBUF; i++) 315 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 316 317 gettimeofday(&start, NULL); 318 #if DEBUG 319 fprintf(stderr, "%08x %08x %08x\n", 320 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 321 #endif 322 frames = 0; 323 packets = 0; 324 pad_acc = 0; 325 while (1) { 326 tlen = 0; 327 while (tlen < DSIZE * TNBUF) { 328 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 329 if (len <= 0) { 330 if (tlen > 0) 331 break; 332 if (len < 0) 333 warn("read"); 334 else 335 fprintf(stderr, "\nend of file\n"); 336 goto send_end; 337 } 338 tlen += len; 339 } 340 vec = 0; 341 offset = 0; 342 nhdr = 0; 343 next: 344 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 345 #if 0 346 header = (dv->sct == 0 && dv->dseq == 0); 347 #else 348 header = (packets == 0 || packets % npackets[system] == 0); 349 #endif 350 351 ciph = (struct ciphdr *)&hdr[nhdr][1]; 352 if (header) { 353 if (system < 0) { 354 system = ((dv->payload[0] & DV_DSF_12) != 0); 355 printf("%s\n", system_name[system]); 356 cycle = 1; 357 cycle_acc = frame_cycle[system].d * cycle; 358 } 359 fprintf(stderr, "%d", frames % 10); 360 frames ++; 361 if (count > 0 && frames > count) 362 break; 363 if (frames % frame_rate[system] == 0) 364 fprintf(stderr, "\n"); 365 fflush(stderr); 366 f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf; 367 f_frac = (cycle_acc % frame_cycle[system].d 368 * CYCLE_FRAC) / frame_cycle[system].d; 369 #if 0 370 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 371 #else 372 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 373 #endif 374 cycle_acc += frame_cycle[system].n; 375 cycle_acc %= frame_cycle[system].d * 0x10; 376 377 } else { 378 ciph->fdf.dv.cyc = 0xffff; 379 } 380 ciph->dbc = packets++ % 256; 381 pad_acc += pad_rate[system].n; 382 if (pad_acc >= pad_rate[system].d) { 383 pad_acc -= pad_rate[system].d; 384 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 385 hdr[nhdr][0] = iso_empty; 386 wbuf[vec].iov_base = (char *)hdr[nhdr]; 387 wbuf[vec++].iov_len = sizeof(hdr[0]); 388 nhdr ++; 389 cycle ++; 390 } 391 hdr[nhdr][0] = iso_data; 392 wbuf[vec].iov_base = (char *)hdr[nhdr]; 393 wbuf[vec++].iov_len = sizeof(hdr[0]); 394 wbuf[vec].iov_base = (char *)dv; 395 wbuf[vec++].iov_len = DSIZE; 396 nhdr ++; 397 cycle ++; 398 offset ++; 399 if (offset * DSIZE < tlen) 400 goto next; 401 402 again: 403 len = writev(d, wbuf, vec); 404 if (len < 0) { 405 if (errno == EAGAIN) { 406 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 407 goto again; 408 } 409 err(1, "write failed"); 410 } 411 } 412 fprintf(stderr, "\n"); 413 send_end: 414 gettimeofday(&end, NULL); 415 rtime = end.tv_sec - start.tv_sec 416 + (end.tv_usec - start.tv_usec) * 1e-6; 417 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 418 frames, rtime, frames/rtime); 419 close(fd); 420 } 421