1 /* $NetBSD: fwdv.c,v 1.10 2025/12/30 21:34:34 nia Exp $ */ 2 /* 3 * Copyright (C) 2003 4 * Hidetoshi Shimokawa. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * 17 * This product includes software developed by Hidetoshi Shimokawa. 18 * 19 * 4. Neither the name of the author nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD: src/usr.sbin/fwcontrol/fwdv.c,v 1.8 2009/02/02 21:05:12 sbruno Exp $ 36 */ 37 #include <sys/param.h> 38 #include <sys/ioctl.h> 39 #include <sys/time.h> 40 #include <sys/types.h> 41 #include <sys/uio.h> 42 43 #include <err.h> 44 #include <errno.h> 45 #include <endian.h> 46 #include <unistd.h> 47 #include <fcntl.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <sysexits.h> 52 53 #include <dev/ieee1394/firewire.h> 54 #include <dev/ieee1394/iec68113.h> 55 56 #include "fwmethods.h" 57 58 #define DEBUG 0 59 #define FIX_FRAME 1 60 61 struct frac { 62 int n,d; 63 }; 64 65 struct frac frame_cycle[2] = { 66 {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ 67 {320, 1}, /* PAL 8000 cycle / 25 Hz */ 68 }; 69 int npackets[] = { 70 250 /* NTSC */, 71 300 /* PAL */ 72 }; 73 struct frac pad_rate[2] = { 74 {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ 75 {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ 76 }; 77 const char *system_name[] = {"NTSC", "PAL"}; 78 int frame_rate[] = {30, 25}; 79 80 #define PSIZE 512 81 #define DSIZE 480 82 #define NCHUNK 64 83 84 #define NPACKET_R 256 85 #define NPACKET_T 255 86 #define TNBUF 100 /* XXX too large value causes block noise */ 87 #define NEMPTY 10 /* depends on TNBUF */ 88 #define RBUFSIZE (PSIZE * NPACKET_R) 89 #define MAXBLOCKS (300) 90 #define CYCLE_FRAC 0xc00 91 92 void 93 dvrecv(int d, const char *filename, char ich, int count) 94 { 95 struct fw_isochreq isoreq; 96 struct fw_isobufreq bufreq; 97 struct dvdbc *dv; 98 struct ciphdr *ciph; 99 struct fw_pkt *pkt; 100 char *pad, *buf; 101 uint32_t *ptr; 102 int len, tlen, npad, fd, k, m, vec, lsystem = -1, nb; 103 int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; 104 struct iovec wbuf[NPACKET_R]; 105 106 if (strcmp(filename, "-") == 0) { 107 fd = STDOUT_FILENO; 108 } else { 109 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); 110 if (fd == -1) 111 err(EX_NOINPUT, "%s: %s", __func__, filename); 112 } 113 buf = malloc(RBUFSIZE); 114 if (buf == NULL) 115 err(EX_SOFTWARE, "%s: buffer alloc", __func__); 116 memset(wbuf, 0, sizeof(wbuf)); 117 118 pad = malloc(DSIZE*MAXBLOCKS); 119 if (pad == NULL) 120 err(EX_SOFTWARE, "%s: pad alloc", __func__); 121 122 memset(pad, 0xff, DSIZE*MAXBLOCKS); 123 124 bufreq.rx.nchunk = NCHUNK; 125 bufreq.rx.npacket = NPACKET_R; 126 bufreq.rx.psize = PSIZE; 127 bufreq.tx.nchunk = 0; 128 bufreq.tx.npacket = 0; 129 bufreq.tx.psize = 0; 130 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 131 err(EXIT_FAILURE, "%s: ioctl FW_SSTBUF", __func__); 132 133 isoreq.ch = ich & 0x3f; 134 isoreq.tag = (ich >> 6) & 3; 135 136 if (ioctl(d, FW_SRSTREAM, &isoreq) < 0) 137 err(EXIT_FAILURE, "%s: ioctl", __func__); 138 139 k = m = 0; 140 while (count <= 0 || k <= count) { 141 #if 0 142 tlen = 0; 143 while ((len = read(d, buf + tlen, PSIZE 144 /* RBUFSIZE - tlen */)) > 0) { 145 if (len < 0) { 146 if (errno == EAGAIN) { 147 fprintf(stderr, "(EAGAIN)\n"); 148 fflush(stderr); 149 if (len <= 0) 150 continue; 151 } else 152 err(EXIT_FAILURE, "%s: read failed", 153 __func__); 154 } 155 tlen += len; 156 if ((RBUFSIZE - tlen) < PSIZE) 157 break; 158 }; 159 #else 160 tlen = len = read(d, buf, RBUFSIZE); 161 if (len < 0) { 162 if (errno == EAGAIN) { 163 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 164 fflush(stderr); 165 if (len <= 0) 166 continue; 167 } else 168 err(EXIT_FAILURE, "%s: read failed", __func__); 169 } 170 #endif 171 vec = 0; 172 ptr = (uint32_t *) buf; 173 again: 174 pkt = (struct fw_pkt *) ptr; 175 #if DEBUG 176 fprintf(stderr, "%08x %08x %08x %08x\n", 177 htonl(ptr[0]), htonl(ptr[1]), 178 htonl(ptr[2]), htonl(ptr[3])); 179 #endif 180 ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ 181 if (ciph->fmt != CIP_FMT_DVCR) 182 errx(EXIT_FAILURE, "%s: unknown format 0x%x", 183 __func__, ciph->fmt); 184 ptr = (uint32_t *) (ciph + 1); /* skip cip header */ 185 #if DEBUG 186 if (ciph->fdf.dv.cyc != 0xffff && k == 0) 187 fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); 188 #endif 189 if (pkt->mode.stream.len <= sizeof(struct ciphdr)) 190 /* no payload */ 191 goto next; 192 for (dv = (struct dvdbc *)ptr; 193 (char *)dv < (char *)(ptr + ciph->len); 194 dv+=6) { 195 196 #if DEBUG 197 fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); 198 #endif 199 if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { 200 if (lsystem < 0) { 201 lsystem = ciph->fdf.dv.fs; 202 fprintf(stderr, 203 "%s\n", system_name[lsystem]); 204 } 205 206 /* Fix DSF bit */ 207 if (lsystem == 1 && 208 (dv->payload[0] & DV_DSF_12) == 0) 209 dv->payload[0] |= DV_DSF_12; 210 nb = nblocks[lsystem]; 211 fprintf(stderr, "%d:%02d:%02d %d\r", 212 k / (3600 * frame_rate[lsystem]), 213 (k / (60 * frame_rate[lsystem])) % 60, 214 (k / frame_rate[lsystem]) % 60, 215 k % frame_rate[lsystem]); 216 217 #if FIX_FRAME 218 if (m > 0 && m != nb) { 219 /* padding bad frame */ 220 npad = ((nb - m) % nb); 221 if (npad < 0) 222 npad += nb; 223 fprintf(stderr, "\n%d blocks padded\n", 224 npad); 225 npad *= DSIZE; 226 wbuf[vec].iov_base = pad; 227 wbuf[vec++].iov_len = npad; 228 if (vec >= NPACKET_R) { 229 writev(fd, wbuf, vec); 230 vec = 0; 231 } 232 } 233 #endif 234 k++; 235 fflush(stderr); 236 m = 0; 237 } 238 if (k == 0 || (count > 0 && k > count)) 239 continue; 240 m++; 241 wbuf[vec].iov_base = (char *) dv; 242 wbuf[vec++].iov_len = DSIZE; 243 if (vec >= NPACKET_R) { 244 writev(fd, wbuf, vec); 245 vec = 0; 246 } 247 } 248 ptr = (uint32_t *)dv; 249 next: 250 if ((char *)ptr < buf + tlen) 251 goto again; 252 if (vec > 0) 253 writev(fd, wbuf, vec); 254 } 255 if (fd != STDOUT_FILENO) 256 close(fd); 257 fprintf(stderr, "\n"); 258 } 259 260 261 void 262 dvsend(int d, const char *filename, char ich, int count) 263 { 264 struct fw_isochreq isoreq; 265 struct fw_isobufreq bufreq; 266 struct dvdbc *dv; 267 struct fw_pkt *pkt; 268 int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; 269 int lsystem=-1, pad_acc, cycle_acc, cycle, f_frac; 270 struct iovec wbuf[TNBUF*2 + NEMPTY]; 271 char *pbuf; 272 uint32_t hdr[TNBUF + NEMPTY][3]; 273 union { 274 uint32_t iso_empty; 275 struct fw_pkt pkt; 276 } empty_pkt; 277 union { 278 uint32_t iso_data; 279 struct fw_pkt pkt; 280 } data_pkt; 281 struct ciphdr *ciph; 282 struct timeval start, end; 283 double rtime; 284 285 cycle_acc = cycle = 0; 286 287 fd = open(filename, O_RDONLY); 288 if (fd == -1) 289 err(EX_NOINPUT, "%s: %s", __func__, filename); 290 291 pbuf = malloc(DSIZE * TNBUF); 292 bzero(wbuf, sizeof(wbuf)); 293 294 bufreq.rx.nchunk = 0; 295 bufreq.rx.npacket = 0; 296 bufreq.rx.psize = 0; 297 bufreq.tx.nchunk = NCHUNK; 298 bufreq.tx.npacket = NPACKET_T; 299 bufreq.tx.psize = PSIZE; 300 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) 301 err(EXIT_FAILURE, "%s: ioctl FW_SSTBUF", __func__); 302 303 isoreq.ch = ich & 0x3f; 304 isoreq.tag = (ich >> 6) & 3; 305 306 if (ioctl(d, FW_STSTREAM, &isoreq) < 0) 307 err(EXIT_FAILURE, "%s: ioctl FW_STSTREAM", __func__); 308 309 data_pkt.iso_data = 0; 310 pkt = &data_pkt.pkt; 311 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 312 pkt->mode.stream.sy = 0; 313 pkt->mode.stream.tcode = FWTCODE_STREAM; 314 pkt->mode.stream.chtag = ich; 315 empty_pkt.iso_empty = data_pkt.iso_data; 316 pkt = &empty_pkt.pkt; 317 pkt->mode.stream.len = sizeof(struct ciphdr); 318 319 bzero(hdr[0], sizeof(hdr[0])); 320 hdr[0][0] = data_pkt.iso_data; 321 ciph = (struct ciphdr *)&hdr[0][1]; 322 ciph->src = 0; /* XXX */ 323 ciph->len = 120; 324 ciph->dbc = 0; 325 ciph->eoh1 = 1; 326 ciph->fdf.dv.cyc = 0xffff; 327 328 for (i = 1; i < TNBUF; i++) 329 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 330 331 gettimeofday(&start, NULL); 332 #if DEBUG 333 fprintf(stderr, "%08x %08x %08x\n", 334 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 335 #endif 336 frames = 0; 337 packets = 0; 338 pad_acc = 0; 339 for (;;) { 340 tlen = 0; 341 while (tlen < DSIZE * TNBUF) { 342 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 343 if (len <= 0) { 344 if (tlen > 0) 345 break; 346 if (len < 0) 347 warn("read"); 348 else 349 fprintf(stderr, "\nend of file\n"); 350 goto send_end; 351 } 352 tlen += len; 353 } 354 vec = 0; 355 offset = 0; 356 nhdr = 0; 357 next: 358 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 359 #if 0 360 header = (dv->sct == 0 && dv->dseq == 0); 361 #else 362 header = (packets == 0 || packets % npackets[lsystem] == 0); 363 #endif 364 365 ciph = (struct ciphdr *)&hdr[nhdr][1]; 366 if (header) { 367 if (lsystem < 0) { 368 lsystem = ((dv->payload[0] & DV_DSF_12) != 0); 369 printf("%s\n", system_name[lsystem]); 370 cycle = 1; 371 cycle_acc = frame_cycle[lsystem].d * cycle; 372 } 373 fprintf(stderr, "%d", frames % 10); 374 frames ++; 375 if (count > 0 && frames > count) 376 break; 377 if (frames % frame_rate[lsystem] == 0) 378 fprintf(stderr, "\n"); 379 fflush(stderr); 380 f_frac = (cycle_acc % frame_cycle[lsystem].d 381 * CYCLE_FRAC) / frame_cycle[lsystem].d; 382 #if 0 383 int f_cycle = (cycle_acc / frame_cycle[lsystem].d) 384 & 0xf; 385 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 386 #else 387 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 388 #endif 389 cycle_acc += frame_cycle[lsystem].n; 390 cycle_acc %= frame_cycle[lsystem].d * 0x10; 391 392 } else { 393 ciph->fdf.dv.cyc = 0xffff; 394 } 395 ciph->dbc = packets++ % 256; 396 pad_acc += pad_rate[lsystem].n; 397 if (pad_acc >= pad_rate[lsystem].d) { 398 pad_acc -= pad_rate[lsystem].d; 399 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 400 hdr[nhdr][0] = empty_pkt.iso_empty; 401 wbuf[vec].iov_base = (char *)hdr[nhdr]; 402 wbuf[vec++].iov_len = sizeof(hdr[0]); 403 nhdr ++; 404 cycle ++; 405 } 406 hdr[nhdr][0] = data_pkt.iso_data; 407 wbuf[vec].iov_base = (char *)hdr[nhdr]; 408 wbuf[vec++].iov_len = sizeof(hdr[0]); 409 wbuf[vec].iov_base = (char *)dv; 410 wbuf[vec++].iov_len = DSIZE; 411 nhdr ++; 412 cycle ++; 413 offset ++; 414 if (offset * DSIZE < tlen) 415 goto next; 416 417 again: 418 len = writev(d, wbuf, vec); 419 if (len < 0) { 420 if (errno == EAGAIN) { 421 fprintf(stderr, "(EAGAIN) - push 'Play'?\n"); 422 goto again; 423 } 424 err(EXIT_FAILURE, "%s: write failed", __func__); 425 } 426 } 427 close(fd); 428 fprintf(stderr, "\n"); 429 send_end: 430 gettimeofday(&end, NULL); 431 rtime = end.tv_sec - start.tv_sec 432 + (end.tv_usec - start.tv_usec) * 1e-6; 433 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 434 frames, rtime, frames/rtime); 435 } 436
Indexes created Sun Oct 25 00:26:45 UTC 2026