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 #include <sys/param.h> 37 #include <sys/ioctl.h> 38 #include <sys/time.h> 39 #include <sys/types.h> 40 #include <sys/uio.h> 41 #include <arpa/inet.h> 42 #include <err.h> 43 #include <errno.h> 44 #include <unistd.h> 45 #include <fcntl.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <sysexits.h> 50 51 #include <dev/firewire/firewire.h> 52 #include <dev/firewire/iec68113.h> 53 54 #include "fwmethods.h" 55 56 #define DEBUG 0 57 #define FIX_FRAME 1 58 59 struct frac { 60 int n,d; 61 }; 62 63 struct frac frame_cycle[2] = { 64 {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ 65 {320, 1}, /* PAL 8000 cycle / 25 Hz */ 66 }; 67 int npackets[] = { 68 250 /* NTSC */, 69 300 /* PAL */ 70 }; 71 struct frac pad_rate[2] = { 72 {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ 73 {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ 74 }; 75 char *system_name[] = {"NTSC", "PAL"}; 76 int frame_rate[] = {30, 25}; 77 78 #define PSIZE 512 79 #define DSIZE 480 80 #define NCHUNK 64 81 82 #define NPACKET_R 256 83 #define NPACKET_T 255 84 #define TNBUF 100 /* XXX too large value causes block noise */ 85 #define NEMPTY 10 /* depends on TNBUF */ 86 #define RBUFSIZE (PSIZE * NPACKET_R) 87 #define MAXBLOCKS (300) 88 #define CYCLE_FRAC 0xc00 89 90 void 91 dvrecv(int d, const char *filename, char ich, int count) 92 { 93 struct fw_isochreq isoreq; 94 struct fw_isobufreq bufreq; 95 struct dvdbc *dv; 96 struct ciphdr *ciph; 97 struct fw_pkt *pkt; 98 char *pad, *buf; 99 u_int32_t *ptr; 100 int len, tlen, npad, fd, k, m, vec, system = -1, nb; 101 int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; 102 struct iovec wbuf[NPACKET_R]; 103 104 if(strcmp(filename, "-") == 0) { 105 fd = STDOUT_FILENO; 106 } else { 107 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); 108 if (fd == -1) 109 err(EX_NOINPUT, "%s", filename); 110 } 111 buf = malloc(RBUFSIZE); 112 pad = malloc(DSIZE*MAXBLOCKS); 113 memset(pad, 0xff, DSIZE*MAXBLOCKS); 114 bzero(wbuf, sizeof(wbuf)); 115 116 bufreq.rx.nchunk = NCHUNK; 117 bufreq.rx.npacket = NPACKET_R; 118 bufreq.rx.psize = PSIZE; 119 bufreq.tx.nchunk = 0; 120 bufreq.tx.npacket = 0; 121 bufreq.tx.psize = 0; 122 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 123 err(1, "ioctl FW_SSTBUF"); 124 125 isoreq.ch = ich & 0x3f; 126 isoreq.tag = (ich >> 6) & 3; 127 128 if (ioctl(d, FW_SRSTREAM, &isoreq) < 0) 129 err(1, "ioctl"); 130 131 k = m = 0; 132 while (count <= 0 || k <= count) { 133 #if 0 134 tlen = 0; 135 while ((len = read(d, buf + tlen, PSIZE 136 /* RBUFSIZE - tlen */)) > 0) { 137 if (len < 0) { 138 if (errno == EAGAIN) { 139 fprintf(stderr, "(EAGAIN)\n"); 140 fflush(stderr); 141 if (len <= 0) 142 continue; 143 } else 144 err(1, "read failed"); 145 } 146 tlen += len; 147 if ((RBUFSIZE - tlen) < PSIZE) 148 break; 149 }; 150 #else 151 tlen = len = read(d, buf, RBUFSIZE); 152 if (len < 0) { 153 if (errno == EAGAIN) { 154 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 155 fflush(stderr); 156 if (len <= 0) 157 continue; 158 } else 159 err(1, "read failed"); 160 } 161 #endif 162 vec = 0; 163 ptr = (u_int32_t *) buf; 164 again: 165 pkt = (struct fw_pkt *) ptr; 166 #if DEBUG 167 fprintf(stderr, "%08x %08x %08x %08x\n", 168 htonl(ptr[0]), htonl(ptr[1]), 169 htonl(ptr[2]), htonl(ptr[3])); 170 #endif 171 ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ 172 if (ciph->fmt != CIP_FMT_DVCR) 173 errx(1, "unknown format 0x%x", ciph->fmt); 174 ptr = (u_int32_t *) (ciph + 1); /* skip cip header */ 175 #if DEBUG 176 if (ciph->fdf.dv.cyc != 0xffff && k == 0) { 177 fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); 178 } 179 #endif 180 if (pkt->mode.stream.len <= sizeof(struct ciphdr)) 181 /* no payload */ 182 goto next; 183 for (dv = (struct dvdbc *)ptr; 184 (char *)dv < (char *)(ptr + ciph->len); 185 dv+=6) { 186 187 #if DEBUG 188 fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); 189 #endif 190 if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { 191 if (system < 0) { 192 system = ciph->fdf.dv.fs; 193 fprintf(stderr, "%s\n", system_name[system]); 194 } 195 196 /* Fix DSF bit */ 197 if (system == 1 && 198 (dv->payload[0] & DV_DSF_12) == 0) 199 dv->payload[0] |= DV_DSF_12; 200 nb = nblocks[system]; 201 fprintf(stderr, "%d:%02d:%02d %d\r", 202 k / (3600 * frame_rate[system]), 203 (k / (60 * frame_rate[system])) % 60, 204 (k / frame_rate[system]) % 60, 205 k % frame_rate[system]); 206 207 #if FIX_FRAME 208 if (m > 0 && m != nb) { 209 /* padding bad frame */ 210 npad = ((nb - m) % nb); 211 if (npad < 0) 212 npad += nb; 213 fprintf(stderr, "\n%d blocks padded\n", 214 npad); 215 npad *= DSIZE; 216 wbuf[vec].iov_base = pad; 217 wbuf[vec++].iov_len = npad; 218 if (vec >= NPACKET_R) { 219 writev(fd, wbuf, vec); 220 vec = 0; 221 } 222 } 223 #endif 224 k++; 225 fflush(stderr); 226 m = 0; 227 } 228 if (k == 0 || (count > 0 && k > count)) 229 continue; 230 m++; 231 wbuf[vec].iov_base = (char *) dv; 232 wbuf[vec++].iov_len = DSIZE; 233 if (vec >= NPACKET_R) { 234 writev(fd, wbuf, vec); 235 vec = 0; 236 } 237 } 238 ptr = (u_int32_t *)dv; 239 next: 240 if ((char *)ptr < buf + tlen) 241 goto again; 242 if (vec > 0) 243 writev(fd, wbuf, vec); 244 } 245 if (fd != STDOUT_FILENO) 246 close(fd); 247 fprintf(stderr, "\n"); 248 } 249 250 251 void 252 dvsend(int d, const char *filename, char ich, int count) 253 { 254 struct fw_isochreq isoreq; 255 struct fw_isobufreq bufreq; 256 struct dvdbc *dv; 257 struct fw_pkt *pkt; 258 int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; 259 int system=-1, pad_acc, cycle_acc, cycle, f_frac; 260 struct iovec wbuf[TNBUF*2 + NEMPTY]; 261 char *pbuf; 262 u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3]; 263 struct ciphdr *ciph; 264 struct timeval start, end; 265 double rtime; 266 267 fd = open(filename, O_RDONLY); 268 if (fd == -1) 269 err(EX_NOINPUT, "%s", filename); 270 271 pbuf = malloc(DSIZE * TNBUF); 272 bzero(wbuf, sizeof(wbuf)); 273 274 bufreq.rx.nchunk = 0; 275 bufreq.rx.npacket = 0; 276 bufreq.rx.psize = 0; 277 bufreq.tx.nchunk = NCHUNK; 278 bufreq.tx.npacket = NPACKET_T; 279 bufreq.tx.psize = PSIZE; 280 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 281 err(1, "ioctl FW_SSTBUF"); 282 283 isoreq.ch = ich & 0x3f; 284 isoreq.tag = (ich >> 6) & 3; 285 286 if (ioctl(d, FW_STSTREAM, &isoreq) < 0) 287 err(1, "ioctl FW_STSTREAM"); 288 289 iso_data = 0; 290 pkt = (struct fw_pkt *) &iso_data; 291 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 292 pkt->mode.stream.sy = 0; 293 pkt->mode.stream.tcode = FWTCODE_STREAM; 294 pkt->mode.stream.chtag = ich; 295 iso_empty = iso_data; 296 pkt = (struct fw_pkt *) &iso_empty; 297 pkt->mode.stream.len = sizeof(struct ciphdr); 298 299 bzero(hdr[0], sizeof(hdr[0])); 300 hdr[0][0] = iso_data; 301 ciph = (struct ciphdr *)&hdr[0][1]; 302 ciph->src = 0; /* XXX */ 303 ciph->len = 120; 304 ciph->dbc = 0; 305 ciph->eoh1 = 1; 306 ciph->fdf.dv.cyc = 0xffff; 307 308 for (i = 1; i < TNBUF; i++) 309 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 310 311 gettimeofday(&start, NULL); 312 #if DEBUG 313 fprintf(stderr, "%08x %08x %08x\n", 314 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 315 #endif 316 frames = 0; 317 packets = 0; 318 pad_acc = 0; 319 while (1) { 320 tlen = 0; 321 while (tlen < DSIZE * TNBUF) { 322 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 323 if (len <= 0) { 324 if (tlen > 0) 325 break; 326 if (len < 0) 327 warn("read"); 328 else 329 fprintf(stderr, "\nend of file\n"); 330 goto send_end; 331 } 332 tlen += len; 333 } 334 vec = 0; 335 offset = 0; 336 nhdr = 0; 337 next: 338 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 339 #if 0 340 header = (dv->sct == 0 && dv->dseq == 0); 341 #else 342 header = (packets == 0 || packets % npackets[system] == 0); 343 #endif 344 345 ciph = (struct ciphdr *)&hdr[nhdr][1]; 346 if (header) { 347 if (system < 0) { 348 system = ((dv->payload[0] & DV_DSF_12) != 0); 349 printf("%s\n", system_name[system]); 350 cycle = 1; 351 cycle_acc = frame_cycle[system].d * cycle; 352 } 353 fprintf(stderr, "%d", frames % 10); 354 frames ++; 355 if (count > 0 && frames > count) 356 break; 357 if (frames % frame_rate[system] == 0) 358 fprintf(stderr, "\n"); 359 fflush(stderr); 360 f_frac = (cycle_acc % frame_cycle[system].d 361 * CYCLE_FRAC) / frame_cycle[system].d; 362 #if 0 363 int f_cycle; 364 f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf; 365 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 366 #else 367 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 368 #endif 369 cycle_acc += frame_cycle[system].n; 370 cycle_acc %= frame_cycle[system].d * 0x10; 371 372 } else { 373 ciph->fdf.dv.cyc = 0xffff; 374 } 375 ciph->dbc = packets++ % 256; 376 pad_acc += pad_rate[system].n; 377 if (pad_acc >= pad_rate[system].d) { 378 pad_acc -= pad_rate[system].d; 379 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 380 hdr[nhdr][0] = iso_empty; 381 wbuf[vec].iov_base = (char *)hdr[nhdr]; 382 wbuf[vec++].iov_len = sizeof(hdr[0]); 383 nhdr ++; 384 cycle ++; 385 } 386 hdr[nhdr][0] = iso_data; 387 wbuf[vec].iov_base = (char *)hdr[nhdr]; 388 wbuf[vec++].iov_len = sizeof(hdr[0]); 389 wbuf[vec].iov_base = (char *)dv; 390 wbuf[vec++].iov_len = DSIZE; 391 nhdr ++; 392 cycle ++; 393 offset ++; 394 if (offset * DSIZE < tlen) 395 goto next; 396 397 again: 398 len = writev(d, wbuf, vec); 399 if (len < 0) { 400 if (errno == EAGAIN) { 401 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 402 goto again; 403 } 404 err(1, "write failed"); 405 } 406 } 407 fprintf(stderr, "\n"); 408 send_end: 409 gettimeofday(&end, NULL); 410 rtime = end.tv_sec - start.tv_sec 411 + (end.tv_usec - start.tv_usec) * 1e-6; 412 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 413 frames, rtime, frames/rtime); 414 close(fd); 415 } 416