/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* 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.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/iec68113.h>
#include "fwmethods.h"
#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 64
#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
void
dvrecv(int d, const 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];
if(strcmp(filename, "-") == 0) {
fd = STDOUT_FILENO;
} else {
fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
if (fd == -1)
err(EX_NOINPUT, "%s", filename);
}
buf = malloc(RBUFSIZE);
pad = 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 FW_SSTBUF");
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) - push 'Play'?\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;
fprintf(stderr, "%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:%02d:%02d %d\r",
k / (3600 * frame_rate[system]),
(k / (60 * frame_rate[system])) % 60,
(k / frame_rate[system]) % 60,
k % frame_rate[system]);
#if FIX_FRAME
if (m > 0 && m != nb) {
/* padding bad frame */
npad = ((nb - m) % nb);
if (npad < 0)
npad += nb;
fprintf(stderr, "\n%d blocks padded\n",
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++;
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);
}
if (fd != STDOUT_FILENO)
close(fd);
fprintf(stderr, "\n");
}
void
dvsend(int d, const 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_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;
fd = open(filename, O_RDONLY);
if (fd == -1)
err(EX_NOINPUT, "%s", filename);
pbuf = 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 FW_SSTBUF");
isoreq.ch = ich & 0x3f;
isoreq.tag = (ich >> 6) & 3;
if (ioctl(d, FW_STSTREAM, &isoreq) < 0)
err(1, "ioctl FW_STSTREAM");
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
fprintf(stderr, "\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_frac = (cycle_acc % frame_cycle[system].d
* CYCLE_FRAC) / frame_cycle[system].d;
#if 0
int f_cycle;
f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
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) - push 'Play'?\n");
goto again;
}
err(1, "write failed");
}
}
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);
close(fd);
}
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