/* $NetBSD: fwdv.c,v 1.1 2005/07/11 15:35:25 kiyohara Exp $ */ /* * Copyright (C) 2003 * Hidetoshi Shimokawa. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * * This product includes software developed by Hidetoshi Shimokawa. * * 4. Neither the name of the author nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/usr.sbin/fwcontrol/fwdv.c,v 1.5 2003/04/17 03:38:03 simokawa Exp $ */ #include #include #include #include #include #if __FreeBSD_version >= 500000 #include #endif #include #include #include #include #include #include #include #if defined(__FreeBSD__) #include #include #elif defined(__NetBSD__) #include #include #endif int dvrecv(int, char *, char, int); int dvsend(int, char *, char, int); #define DEBUG 0 #define FIX_FRAME 1 struct frac { int n,d; }; struct frac frame_cycle[2] = { {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ {320, 1}, /* PAL 8000 cycle / 25 Hz */ }; int npackets[] = { 250 /* NTSC */, 300 /* PAL */ }; struct frac pad_rate[2] = { {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ }; char *system_name[] = {"NTSC", "PAL"}; int frame_rate[] = {30, 25}; #define PSIZE 512 #define DSIZE 480 #define NCHUNK 8 #define NPACKET_R 256 #define NPACKET_T 255 #define TNBUF 100 /* XXX too large value causes block noise */ #define NEMPTY 10 /* depends on TNBUF */ #define RBUFSIZE (PSIZE * NPACKET_R) #define MAXBLOCKS (300) #define CYCLE_FRAC 0xc00 int dvrecv(int d, char *filename, char ich, int count) { struct fw_isochreq isoreq; struct fw_isobufreq bufreq; struct dvdbc *dv; struct ciphdr *ciph; struct fw_pkt *pkt; char *pad, *buf; u_int32_t *ptr; int len, tlen, npad, fd, k, m, vec, system = -1, nb; int nblocks[] = {250 /* NTSC */, 300 /* PAL */}; struct iovec wbuf[NPACKET_R]; fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660); buf = (char *)malloc(RBUFSIZE); pad = (char *)malloc(DSIZE*MAXBLOCKS); memset(pad, 0xff, DSIZE*MAXBLOCKS); bzero(wbuf, sizeof(wbuf)); bufreq.rx.nchunk = NCHUNK; bufreq.rx.npacket = NPACKET_R; bufreq.rx.psize = PSIZE; bufreq.tx.nchunk = 0; bufreq.tx.npacket = 0; bufreq.tx.psize = 0; if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { err(1, "ioctl"); } isoreq.ch = ich & 0x3f; isoreq.tag = (ich >> 6) & 3; if( ioctl(d, FW_SRSTREAM, &isoreq) < 0) err(1, "ioctl"); k = m = 0; while (count <= 0 || k <= count) { #if 0 tlen = 0; while ((len = read(d, buf + tlen, PSIZE /* RBUFSIZE - tlen */)) > 0) { if (len < 0) { if (errno == EAGAIN) { fprintf(stderr, "(EAGAIN)\n"); fflush(stderr); if (len <= 0) continue; } else err(1, "read failed"); } tlen += len; if ((RBUFSIZE - tlen) < PSIZE) break; }; #else tlen = len = read(d, buf, RBUFSIZE); if (len < 0) { if (errno == EAGAIN) { fprintf(stderr, "(EAGAIN)\n"); fflush(stderr); if (len <= 0) continue; } else err(1, "read failed"); } #endif vec = 0; ptr = (u_int32_t *) buf; again: pkt = (struct fw_pkt *) ptr; #if DEBUG fprintf(stderr, "%08x %08x %08x %08x\n", htonl(ptr[0]), htonl(ptr[1]), htonl(ptr[2]), htonl(ptr[3])); #endif ciph = (struct ciphdr *)(ptr + 1); /* skip iso header */ if (ciph->fmt != CIP_FMT_DVCR) errx(1, "unknown format 0x%x", ciph->fmt); ptr = (u_int32_t *) (ciph + 1); /* skip cip header */ #if DEBUG if (ciph->fdf.dv.cyc != 0xffff && k == 0) { fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc)); } #endif if (pkt->mode.stream.len <= sizeof(struct ciphdr)) /* no payload */ goto next; for (dv = (struct dvdbc *)ptr; (char *)dv < (char *)(ptr + ciph->len); dv+=6) { #if DEBUG fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq); #endif if (dv->sct == DV_SCT_HEADER && dv->dseq == 0) { if (system < 0) { system = ciph->fdf.dv.fs; printf("%s\n", system_name[system]); } /* Fix DSF bit */ if (system == 1 && (dv->payload[0] & DV_DSF_12) == 0) dv->payload[0] |= DV_DSF_12; nb = nblocks[system]; fprintf(stderr, "%d", k%10); #if FIX_FRAME if (m > 0 && m != nb) { /* padding bad frame */ npad = ((nb - m) % nb); if (npad < 0) npad += nb; fprintf(stderr, "(%d blocks padded)", npad); npad *= DSIZE; wbuf[vec].iov_base = pad; wbuf[vec++].iov_len = npad; if (vec >= NPACKET_R) { writev(fd, wbuf, vec); vec = 0; } } #endif k++; if (k % frame_rate[system] == 0) { /* every second */ fprintf(stderr, "\n"); } fflush(stderr); m = 0; } if (k == 0 || (count > 0 && k > count)) continue; m++; wbuf[vec].iov_base = (char *) dv; wbuf[vec++].iov_len = DSIZE; if (vec >= NPACKET_R) { writev(fd, wbuf, vec); vec = 0; } } ptr = (u_int32_t *)dv; next: if ((char *)ptr < buf + tlen) goto again; if (vec > 0) writev(fd, wbuf, vec); } close(fd); fprintf(stderr, "\n"); return 0; } int dvsend(int d, char *filename, char ich, int count) { struct fw_isochreq isoreq; struct fw_isobufreq bufreq; struct dvdbc *dv; struct fw_pkt *pkt; int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i; int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac; struct iovec wbuf[TNBUF*2 + NEMPTY]; char *pbuf; u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3]; struct ciphdr *ciph; struct timeval start, end; double rtime; cycle_acc = cycle = 0; fd = open(filename, O_RDONLY); pbuf = (char *)malloc(DSIZE * TNBUF); bzero(wbuf, sizeof(wbuf)); bufreq.rx.nchunk = 0; bufreq.rx.npacket = 0; bufreq.rx.psize = 0; bufreq.tx.nchunk = NCHUNK; bufreq.tx.npacket = NPACKET_T; bufreq.tx.psize = PSIZE; if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { err(1, "ioctl"); } isoreq.ch = ich & 0x3f; isoreq.tag = (ich >> 6) & 3; if( ioctl(d, FW_STSTREAM, &isoreq) < 0) err(1, "ioctl"); iso_data = 0; pkt = (struct fw_pkt *) &iso_data; pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); pkt->mode.stream.sy = 0; pkt->mode.stream.tcode = FWTCODE_STREAM; pkt->mode.stream.chtag = ich; iso_empty = iso_data; pkt = (struct fw_pkt *) &iso_empty; pkt->mode.stream.len = sizeof(struct ciphdr); bzero(hdr[0], sizeof(hdr[0])); hdr[0][0] = iso_data; ciph = (struct ciphdr *)&hdr[0][1]; ciph->src = 0; /* XXX */ ciph->len = 120; ciph->dbc = 0; ciph->eoh1 = 1; ciph->fdf.dv.cyc = 0xffff; for (i = 1; i < TNBUF; i++) { bcopy(hdr[0], hdr[i], sizeof(hdr[0])); } gettimeofday(&start, NULL); #if DEBUG fprintf(stderr, "%08x %08x %08x\n", htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); #endif frames = 0; packets = 0; pad_acc = 0; while (1) { tlen = 0; while (tlen < DSIZE * TNBUF) { len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); if (len <= 0) { if (tlen > 0) break; if (len < 0) warn("read"); else printf("\nend of file\n"); goto send_end; } tlen += len; } vec = 0; offset = 0; nhdr = 0; next: dv = (struct dvdbc *)(pbuf + offset * DSIZE); #if 0 header = (dv->sct == 0 && dv->dseq == 0); #else header = (packets == 0 || packets % npackets[system] == 0); #endif ciph = (struct ciphdr *)&hdr[nhdr][1]; if (header) { if (system < 0) { system = ((dv->payload[0] & DV_DSF_12) != 0); printf("%s\n", system_name[system]); cycle = 1; cycle_acc = frame_cycle[system].d * cycle; } fprintf(stderr, "%d", frames % 10); frames ++; if (count > 0 && frames > count) break; if (frames % frame_rate[system] == 0) fprintf(stderr, "\n"); fflush(stderr); f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf; f_frac = (cycle_acc % frame_cycle[system].d * CYCLE_FRAC) / frame_cycle[system].d; #if 0 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); #else ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); #endif cycle_acc += frame_cycle[system].n; cycle_acc %= frame_cycle[system].d * 0x10; } else { ciph->fdf.dv.cyc = 0xffff; } ciph->dbc = packets++ % 256; pad_acc += pad_rate[system].n; if (pad_acc >= pad_rate[system].d) { pad_acc -= pad_rate[system].d; bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); hdr[nhdr][0] = iso_empty; wbuf[vec].iov_base = (char *)hdr[nhdr]; wbuf[vec++].iov_len = sizeof(hdr[0]); nhdr ++; cycle ++; } hdr[nhdr][0] = iso_data; wbuf[vec].iov_base = (char *)hdr[nhdr]; wbuf[vec++].iov_len = sizeof(hdr[0]); wbuf[vec].iov_base = (char *)dv; wbuf[vec++].iov_len = DSIZE; nhdr ++; cycle ++; offset ++; if (offset * DSIZE < tlen) goto next; again: len = writev(d, wbuf, vec); if (len < 0) { if (errno == EAGAIN) { fprintf(stderr, "(EAGAIN)\n"); fflush(stderr); goto again; } err(1, "write failed"); } } close(fd); fprintf(stderr, "\n"); send_end: gettimeofday(&end, NULL); rtime = end.tv_sec - start.tv_sec + (end.tv_usec - start.tv_usec) * 1e-6; fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", frames, rtime, frames/rtime); return 0; }