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 * $FreeBSD$ 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 42 #if __FreeBSD_version >= 500000 43 #include <arpa/inet.h> 44 #endif 45 46 #include <err.h> 47 #include <errno.h> 48 #include <unistd.h> 49 #include <fcntl.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 54 #include <dev/firewire/firewire.h> 55 #include <dev/firewire/iec68113.h> 56 57 #define DEBUG 0 58 #define FIX_FRAME 1 59 60 struct frac { 61 int n,d; 62 }; 63 64 struct frac frame_cycle[2] = { 65 {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ 66 {320, 1}, /* PAL 8000 cycle / 25 Hz */ 67 }; 68 int npackets[] = { 69 250 /* NTSC */, 70 300 /* PAL */ 71 }; 72 struct frac pad_rate[2] = { 73 {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ 74 {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ 75 }; 76 char *system_name[] = {"NTSC", "PAL"}; 77 int frame_rate[] = {30, 25}; 78 79 #define PSIZE 512 80 #define DSIZE 480 81 #define NCHUNK 8 82 83 #define NPACKET_R 256 84 #define NPACKET_T 255 85 #define TNBUF 100 /* XXX too large value causes block noise */ 86 #define NEMPTY 10 /* depends on TNBUF */ 87 #define RBUFSIZE (PSIZE * NPACKET_R) 88 #define MAXBLOCKS (300) 89 #define CYCLE_FRAC 0xc00 90 91 int 92 dvrecv(int d, char *filename, char ich, int count) 93 { 94 struct fw_isochreq isoreq; 95 struct fw_isobufreq bufreq; 96 struct dvdbc *dv; 97 struct ciphdr *ciph; 98 struct fw_pkt *pkt; 99 char *pad, *buf; 100 u_int32_t *ptr; 101 int len, tlen, npad, fd, k, m, vec, system = -1, nb; 102 int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; 103 struct iovec wbuf[NPACKET_R]; 104 105 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); 106 buf = (char *)malloc(RBUFSIZE); 107 pad = (char *)malloc(DSIZE*MAXBLOCKS); 108 memset(pad, 0xff, DSIZE*MAXBLOCKS); 109 bzero(wbuf, sizeof(wbuf)); 110 111 bufreq.rx.nchunk = NCHUNK; 112 bufreq.rx.npacket = NPACKET_R; 113 bufreq.rx.psize = PSIZE; 114 bufreq.tx.nchunk = 0; 115 bufreq.tx.npacket = 0; 116 bufreq.tx.psize = 0; 117 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { 118 err(1, "ioctl"); 119 } 120 121 isoreq.ch = ich & 0x3f; 122 isoreq.tag = (ich >> 6) & 3; 123 124 if( ioctl(d, FW_SRSTREAM, &isoreq) < 0) 125 err(1, "ioctl"); 126 127 k = m = 0; 128 while (count <= 0 || k <= count) { 129 #if 0 130 tlen = 0; 131 while ((len = read(d, buf + tlen, PSIZE 132 /* RBUFSIZE - tlen */)) > 0) { 133 if (len < 0) { 134 if (errno == EAGAIN) { 135 fprintf(stderr, "(EAGAIN)\n"); 136 fflush(stderr); 137 if (len <= 0) 138 continue; 139 } else 140 err(1, "read failed"); 141 } 142 tlen += len; 143 if ((RBUFSIZE - tlen) < PSIZE) 144 break; 145 }; 146 #else 147 tlen = len = read(d, buf, RBUFSIZE); 148 if (len < 0) { 149 if (errno == EAGAIN) { 150 fprintf(stderr, "(EAGAIN)\n"); 151 fflush(stderr); 152 if (len <= 0) 153 continue; 154 } else 155 err(1, "read failed"); 156 } 157 #endif 158 vec = 0; 159 ptr = (u_int32_t *) buf; 160 again: 161 pkt = (struct fw_pkt *) ptr; 162 #if DEBUG 163 fprintf(stderr, "%08x %08x %08x %08x\n", 164 htonl(ptr[0]), htonl(ptr[1]), 165 htonl(ptr[2]), htonl(ptr[3])); 166 #endif 167 ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ 168 if (ciph->fmt != CIP_FMT_DVCR) 169 errx(1, "unknown format 0x%x", ciph->fmt); 170 ptr = (u_int32_t *) (ciph + 1); /* skip cip header */ 171 #if DEBUG 172 if (ciph->fdf.dv.cyc != 0xffff && k == 0) { 173 fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); 174 } 175 #endif 176 if (pkt->mode.stream.len <= sizeof(struct ciphdr)) 177 /* no payload */ 178 goto next; 179 for (dv = (struct dvdbc *)ptr; 180 (char *)dv < (char *)(ptr + ciph->len); 181 dv+=6) { 182 183 #if DEBUG 184 fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); 185 #endif 186 if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { 187 if (system < 0) { 188 system = ciph->fdf.dv.fs; 189 printf("%s\n", system_name[system]); 190 } 191 192 /* Fix DSF bit */ 193 if (system == 1 && 194 (dv->payload[0] & DV_DSF_12) == 0) 195 dv->payload[0] |= DV_DSF_12; 196 nb = nblocks[system]; 197 fprintf(stderr, "%d", k%10); 198 #if FIX_FRAME 199 if (m > 0 && m != nb) { 200 /* padding bad frame */ 201 npad = ((nb - m) % nb); 202 if (npad < 0) 203 npad += nb; 204 fprintf(stderr, "(%d blocks padded)", 205 npad); 206 npad *= DSIZE; 207 wbuf[vec].iov_base = pad; 208 wbuf[vec++].iov_len = npad; 209 if (vec >= NPACKET_R) { 210 writev(fd, wbuf, vec); 211 vec = 0; 212 } 213 } 214 #endif 215 k++; 216 if (k % frame_rate[system] == 0) { 217 /* every second */ 218 fprintf(stderr, "\n"); 219 } 220 fflush(stderr); 221 m = 0; 222 } 223 if (k == 0 || (count > 0 && k > count)) 224 continue; 225 m++; 226 wbuf[vec].iov_base = (char *) dv; 227 wbuf[vec++].iov_len = DSIZE; 228 if (vec >= NPACKET_R) { 229 writev(fd, wbuf, vec); 230 vec = 0; 231 } 232 } 233 ptr = (u_int32_t *)dv; 234 next: 235 if ((char *)ptr < buf + tlen) 236 goto again; 237 if (vec > 0) 238 writev(fd, wbuf, vec); 239 } 240 close(fd); 241 fprintf(stderr, "\n"); 242 return 0; 243 } 244 245 246 int 247 dvsend(int d, char *filename, char ich, int count) 248 { 249 struct fw_isochreq isoreq; 250 struct fw_isobufreq bufreq; 251 struct dvdbc *dv; 252 struct fw_pkt *pkt; 253 int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; 254 int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac; 255 struct iovec wbuf[TNBUF*2 + NEMPTY]; 256 char *pbuf; 257 u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3]; 258 struct ciphdr *ciph; 259 struct timeval start, end; 260 double rtime; 261 262 fd = open(filename, O_RDONLY); 263 pbuf = (char *)malloc(DSIZE * TNBUF); 264 bzero(wbuf, sizeof(wbuf)); 265 266 bufreq.rx.nchunk = 0; 267 bufreq.rx.npacket = 0; 268 bufreq.rx.psize = 0; 269 bufreq.tx.nchunk = NCHUNK; 270 bufreq.tx.npacket = NPACKET_T; 271 bufreq.tx.psize = PSIZE; 272 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { 273 err(1, "ioctl"); 274 } 275 276 isoreq.ch = ich & 0x3f; 277 isoreq.tag = (ich >> 6) & 3; 278 279 if( ioctl(d, FW_STSTREAM, &isoreq) < 0) 280 err(1, "ioctl"); 281 282 iso_data = 0; 283 pkt = (struct fw_pkt *) &iso_data; 284 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 285 pkt->mode.stream.sy = 0; 286 pkt->mode.stream.tcode = FWTCODE_STREAM; 287 pkt->mode.stream.chtag = ich; 288 iso_empty = iso_data; 289 pkt = (struct fw_pkt *) &iso_empty; 290 pkt->mode.stream.len = sizeof(struct ciphdr); 291 292 bzero(hdr[0], sizeof(hdr[0])); 293 hdr[0][0] = iso_data; 294 ciph = (struct ciphdr *)&hdr[0][1]; 295 ciph->src = 0; /* XXX */ 296 ciph->len = 120; 297 ciph->dbc = 0; 298 ciph->eoh1 = 1; 299 ciph->fdf.dv.cyc = 0xffff; 300 301 for (i = 1; i < TNBUF; i++) { 302 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 303 } 304 305 gettimeofday(&start, NULL); 306 #if DEBUG 307 fprintf(stderr, "%08x %08x %08x\n", 308 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 309 #endif 310 frames = 0; 311 packets = 0; 312 pad_acc = 0; 313 while (1) { 314 tlen = 0; 315 while (tlen < DSIZE * TNBUF) { 316 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 317 if (len <= 0) { 318 if (tlen > 0) 319 break; 320 if (len < 0) 321 warn("read"); 322 else 323 printf("\nend of file\n"); 324 goto send_end; 325 } 326 tlen += len; 327 } 328 vec = 0; 329 offset = 0; 330 nhdr = 0; 331 next: 332 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 333 #if 0 334 header = (dv->sct == 0 && dv->dseq == 0); 335 #else 336 header = (packets == 0 || packets % npackets[system] == 0); 337 #endif 338 339 ciph = (struct ciphdr *)&hdr[nhdr][1]; 340 if (header) { 341 if (system < 0) { 342 system = ((dv->payload[0] & DV_DSF_12) != 0); 343 printf("%s\n", system_name[system]); 344 cycle = 1; 345 cycle_acc = frame_cycle[system].d * cycle; 346 } 347 fprintf(stderr, "%d", frames % 10); 348 frames ++; 349 if (count > 0 && frames > count) 350 break; 351 if (frames % frame_rate[system] == 0) 352 fprintf(stderr, "\n"); 353 fflush(stderr); 354 f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf; 355 f_frac = (cycle_acc % frame_cycle[system].d 356 * CYCLE_FRAC) / frame_cycle[system].d; 357 #if 0 358 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 359 #else 360 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 361 #endif 362 cycle_acc += frame_cycle[system].n; 363 cycle_acc %= frame_cycle[system].d * 0x10; 364 365 } else { 366 ciph->fdf.dv.cyc = 0xffff; 367 } 368 ciph->dbc = packets++ % 256; 369 pad_acc += pad_rate[system].n; 370 if (pad_acc >= pad_rate[system].d) { 371 pad_acc -= pad_rate[system].d; 372 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 373 hdr[nhdr][0] = iso_empty; 374 wbuf[vec].iov_base = (char *)hdr[nhdr]; 375 wbuf[vec++].iov_len = sizeof(hdr[0]); 376 nhdr ++; 377 cycle ++; 378 } 379 hdr[nhdr][0] = iso_data; 380 wbuf[vec].iov_base = (char *)hdr[nhdr]; 381 wbuf[vec++].iov_len = sizeof(hdr[0]); 382 wbuf[vec].iov_base = (char *)dv; 383 wbuf[vec++].iov_len = DSIZE; 384 nhdr ++; 385 cycle ++; 386 offset ++; 387 if (offset * DSIZE < tlen) 388 goto next; 389 390 again: 391 len = writev(d, wbuf, vec); 392 if (len < 0) { 393 if (errno == EAGAIN) { 394 fprintf(stderr, "(EAGAIN)\n"); 395 fflush(stderr); 396 goto again; 397 } 398 err(1, "write failed"); 399 } 400 } 401 close(fd); 402 fprintf(stderr, "\n"); 403 send_end: 404 gettimeofday(&end, NULL); 405 rtime = end.tv_sec - start.tv_sec 406 + (end.tv_usec - start.tv_usec) * 1e-6; 407 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 408 frames, rtime, frames/rtime); 409 return 0; 410 } 411