1 /* 2 * Copyright (C) 2003 3 * Hidetoshi Shimokawa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * 16 * This product includes software developed by Hidetoshi Shimokawa. 17 * 18 * 4. Neither the name of the author nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD: src/usr.sbin/fwcontrol/fwdv.c,v 1.2.2.4 2003/04/28 03:29:18 simokawa Exp $ 35 * $DragonFly: src/usr.sbin/fwcontrol/fwdv.c,v 1.3 2003/08/08 04:18:44 dillon 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 #if __FreeBSD_version >= 500000 44 #include <arpa/inet.h> 45 #endif 46 47 #include <err.h> 48 #include <errno.h> 49 #include <unistd.h> 50 #include <fcntl.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 55 #include <bus/firewire/firewire.h> 56 #include <bus/firewire/iec68113.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 char *system_name[] = {"NTSC", "PAL"}; 78 int frame_rate[] = {30, 25}; 79 80 #define PSIZE 512 81 #define DSIZE 480 82 #define NCHUNK 8 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 int 93 dvrecv(int d, 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 u_int32_t *ptr; 102 int len, tlen, npad, fd, k, m, vec, system = -1, nb; 103 int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; 104 struct iovec wbuf[NPACKET_R]; 105 106 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); 107 buf = (char *)malloc(RBUFSIZE); 108 pad = (char *)malloc(DSIZE*MAXBLOCKS); 109 memset(pad, 0xff, DSIZE*MAXBLOCKS); 110 bzero(wbuf, sizeof(wbuf)); 111 112 bufreq.rx.nchunk = NCHUNK; 113 bufreq.rx.npacket = NPACKET_R; 114 bufreq.rx.psize = PSIZE; 115 bufreq.tx.nchunk = 0; 116 bufreq.tx.npacket = 0; 117 bufreq.tx.psize = 0; 118 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { 119 err(1, "ioctl"); 120 } 121 122 isoreq.ch = ich & 0x3f; 123 isoreq.tag = (ich >> 6) & 3; 124 125 if( ioctl(d, FW_SRSTREAM, &isoreq) < 0) 126 err(1, "ioctl"); 127 128 k = m = 0; 129 while (count <= 0 || k <= count) { 130 #if 0 131 tlen = 0; 132 while ((len = read(d, buf + tlen, PSIZE 133 /* RBUFSIZE - tlen */)) > 0) { 134 if (len < 0) { 135 if (errno == EAGAIN) { 136 fprintf(stderr, "(EAGAIN)\n"); 137 fflush(stderr); 138 if (len <= 0) 139 continue; 140 } else 141 err(1, "read failed"); 142 } 143 tlen += len; 144 if ((RBUFSIZE - tlen) < PSIZE) 145 break; 146 }; 147 #else 148 tlen = len = read(d, buf, RBUFSIZE); 149 if (len < 0) { 150 if (errno == EAGAIN) { 151 fprintf(stderr, "(EAGAIN)\n"); 152 fflush(stderr); 153 if (len <= 0) 154 continue; 155 } else 156 err(1, "read failed"); 157 } 158 #endif 159 vec = 0; 160 ptr = (u_int32_t *) buf; 161 again: 162 pkt = (struct fw_pkt *) ptr; 163 #if DEBUG 164 fprintf(stderr, "%08x %08x %08x %08x\n", 165 htonl(ptr[0]), htonl(ptr[1]), 166 htonl(ptr[2]), htonl(ptr[3])); 167 #endif 168 ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ 169 if (ciph->fmt != CIP_FMT_DVCR) 170 errx(1, "unknown format 0x%x", ciph->fmt); 171 ptr = (u_int32_t *) (ciph + 1); /* skip cip header */ 172 #if DEBUG 173 if (ciph->fdf.dv.cyc != 0xffff && k == 0) { 174 fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); 175 } 176 #endif 177 if (pkt->mode.stream.len <= sizeof(struct ciphdr)) 178 /* no payload */ 179 goto next; 180 for (dv = (struct dvdbc *)ptr; 181 (char *)dv < (char *)(ptr + ciph->len); 182 dv+=6) { 183 184 #if DEBUG 185 fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); 186 #endif 187 if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { 188 if (system < 0) { 189 system = ciph->fdf.dv.fs; 190 printf("%s\n", system_name[system]); 191 } 192 193 /* Fix DSF bit */ 194 if (system == 1 && 195 (dv->payload[0] & DV_DSF_12) == 0) 196 dv->payload[0] |= DV_DSF_12; 197 nb = nblocks[system]; 198 fprintf(stderr, "%d", k%10); 199 #if FIX_FRAME 200 if (m > 0 && m != nb) { 201 /* padding bad frame */ 202 npad = ((nb - m) % nb); 203 if (npad < 0) 204 npad += nb; 205 fprintf(stderr, "(%d blocks padded)", 206 npad); 207 npad *= DSIZE; 208 wbuf[vec].iov_base = pad; 209 wbuf[vec++].iov_len = npad; 210 if (vec >= NPACKET_R) { 211 writev(fd, wbuf, vec); 212 vec = 0; 213 } 214 } 215 #endif 216 k++; 217 if (k % frame_rate[system] == 0) { 218 /* every second */ 219 fprintf(stderr, "\n"); 220 } 221 fflush(stderr); 222 m = 0; 223 } 224 if (k == 0 || (count > 0 && k > count)) 225 continue; 226 m++; 227 wbuf[vec].iov_base = (char *) dv; 228 wbuf[vec++].iov_len = DSIZE; 229 if (vec >= NPACKET_R) { 230 writev(fd, wbuf, vec); 231 vec = 0; 232 } 233 } 234 ptr = (u_int32_t *)dv; 235 next: 236 if ((char *)ptr < buf + tlen) 237 goto again; 238 if (vec > 0) 239 writev(fd, wbuf, vec); 240 } 241 close(fd); 242 fprintf(stderr, "\n"); 243 return 0; 244 } 245 246 247 int 248 dvsend(int d, char *filename, char ich, int count) 249 { 250 struct fw_isochreq isoreq; 251 struct fw_isobufreq bufreq; 252 struct dvdbc *dv; 253 struct fw_pkt *pkt; 254 int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; 255 int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac; 256 struct iovec wbuf[TNBUF*2 + NEMPTY]; 257 char *pbuf; 258 u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3]; 259 struct ciphdr *ciph; 260 struct timeval start, end; 261 double rtime; 262 263 fd = open(filename, O_RDONLY); 264 pbuf = (char *)malloc(DSIZE * TNBUF); 265 bzero(wbuf, sizeof(wbuf)); 266 267 bufreq.rx.nchunk = 0; 268 bufreq.rx.npacket = 0; 269 bufreq.rx.psize = 0; 270 bufreq.tx.nchunk = NCHUNK; 271 bufreq.tx.npacket = NPACKET_T; 272 bufreq.tx.psize = PSIZE; 273 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { 274 err(1, "ioctl"); 275 } 276 277 isoreq.ch = ich & 0x3f; 278 isoreq.tag = (ich >> 6) & 3; 279 280 if( ioctl(d, FW_STSTREAM, &isoreq) < 0) 281 err(1, "ioctl"); 282 283 iso_data = 0; 284 pkt = (struct fw_pkt *) &iso_data; 285 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 286 pkt->mode.stream.sy = 0; 287 pkt->mode.stream.tcode = FWTCODE_STREAM; 288 pkt->mode.stream.chtag = ich; 289 iso_empty = iso_data; 290 pkt = (struct fw_pkt *) &iso_empty; 291 pkt->mode.stream.len = sizeof(struct ciphdr); 292 293 bzero(hdr[0], sizeof(hdr[0])); 294 hdr[0][0] = iso_data; 295 ciph = (struct ciphdr *)&hdr[0][1]; 296 ciph->src = 0; /* XXX */ 297 ciph->len = 120; 298 ciph->dbc = 0; 299 ciph->eoh1 = 1; 300 ciph->fdf.dv.cyc = 0xffff; 301 302 for (i = 1; i < TNBUF; i++) { 303 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 304 } 305 306 gettimeofday(&start, NULL); 307 #if DEBUG 308 fprintf(stderr, "%08x %08x %08x\n", 309 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 310 #endif 311 frames = 0; 312 packets = 0; 313 pad_acc = 0; 314 while (1) { 315 tlen = 0; 316 while (tlen < DSIZE * TNBUF) { 317 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 318 if (len <= 0) { 319 if (tlen > 0) 320 break; 321 if (len < 0) 322 warn("read"); 323 else 324 printf("\nend of file\n"); 325 goto send_end; 326 } 327 tlen += len; 328 } 329 vec = 0; 330 offset = 0; 331 nhdr = 0; 332 next: 333 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 334 #if 0 335 header = (dv->sct == 0 && dv->dseq == 0); 336 #else 337 header = (packets == 0 || packets % npackets[system] == 0); 338 #endif 339 340 ciph = (struct ciphdr *)&hdr[nhdr][1]; 341 if (header) { 342 if (system < 0) { 343 system = ((dv->payload[0] & DV_DSF_12) != 0); 344 printf("%s\n", system_name[system]); 345 cycle = 1; 346 cycle_acc = frame_cycle[system].d * cycle; 347 } 348 fprintf(stderr, "%d", frames % 10); 349 frames ++; 350 if (count > 0 && frames > count) 351 break; 352 if (frames % frame_rate[system] == 0) 353 fprintf(stderr, "\n"); 354 fflush(stderr); 355 f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf; 356 f_frac = (cycle_acc % frame_cycle[system].d 357 * CYCLE_FRAC) / frame_cycle[system].d; 358 #if 0 359 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 360 #else 361 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 362 #endif 363 cycle_acc += frame_cycle[system].n; 364 cycle_acc %= frame_cycle[system].d * 0x10; 365 366 } else { 367 ciph->fdf.dv.cyc = 0xffff; 368 } 369 ciph->dbc = packets++ % 256; 370 pad_acc += pad_rate[system].n; 371 if (pad_acc >= pad_rate[system].d) { 372 pad_acc -= pad_rate[system].d; 373 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 374 hdr[nhdr][0] = iso_empty; 375 wbuf[vec].iov_base = (char *)hdr[nhdr]; 376 wbuf[vec++].iov_len = sizeof(hdr[0]); 377 nhdr ++; 378 cycle ++; 379 } 380 hdr[nhdr][0] = iso_data; 381 wbuf[vec].iov_base = (char *)hdr[nhdr]; 382 wbuf[vec++].iov_len = sizeof(hdr[0]); 383 wbuf[vec].iov_base = (char *)dv; 384 wbuf[vec++].iov_len = DSIZE; 385 nhdr ++; 386 cycle ++; 387 offset ++; 388 if (offset * DSIZE < tlen) 389 goto next; 390 391 again: 392 len = writev(d, wbuf, vec); 393 if (len < 0) { 394 if (errno == EAGAIN) { 395 fprintf(stderr, "(EAGAIN)\n"); 396 fflush(stderr); 397 goto again; 398 } 399 err(1, "write failed"); 400 } 401 } 402 close(fd); 403 fprintf(stderr, "\n"); 404 send_end: 405 gettimeofday(&end, NULL); 406 rtime = end.tv_sec - start.tv_sec 407 + (end.tv_usec - start.tv_usec) * 1e-6; 408 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 409 frames, rtime, frames/rtime); 410 return 0; 411 } 412