static void rd_init(const char *fname) {
port = xstrdup(fname);
db(1, "Opening port...\n");
if (fd = gbser_init(port), NULL == fd) {
fatal(MYNAME ": Can't initialise port \"%s\"\n", port);
}
dev_type = guess_device();
if (UNKNOWN == dev_type) {
fatal(MYNAME ": Can't determine device type\n");
}
}
static int preinit(const char *arg) {
vo_zr2_priv_t *p = &priv;
const char *dev = NULL;
char *dev_arg = NULL, *norm_arg = NULL;
int norm = VIDEO_MODE_AUTO, prebuf = 0;
const opt_t subopts[] = { /* don't want warnings with -Wall... */
{ "dev", OPT_ARG_MSTRZ, &dev_arg, NULL },
{ "prebuf", OPT_ARG_BOOL, &prebuf, pbc },
{ "norm", OPT_ARG_MSTRZ, &norm_arg, nc },
{ NULL, 0, NULL, NULL }
};
VERBOSE("preinit() called with arg: %s\n", arg);
memset(p, 0, sizeof(*p)); /* set defaults */
p->vdes = -1;
if (subopt_parse(arg, subopts)) {
mp_msg(MSGT_VO, MSGL_FATAL,
"Allowed suboptions for -vo zr2 are:\n"
"- dev=DEVICE (default: %s)\n"
"- norm=PAL|NTSC|SECAM|auto (default: auto)\n"
"- prebuf/noprebuf (default:"
" noprebuf)\n"
"\n"
"Example: mplayer -vo zr2:dev=/dev/video1:"
"norm=PAL movie.avi\n\n"
, guess_device(NULL, 0));
free(norm_arg);
free(dev_arg);
return -1;
}
/* interpret the strings we got from subopt_parse */
if (norm_arg) {
norm = get_norm(norm_arg);
free(norm_arg);
}
if (dev_arg) dev = dev_arg;
dev = guess_device(dev, 1);
if (!dev) {
free(dev_arg);
uninit();
return 1;
}
p->vdes = open(dev, O_RDWR);
if (p->vdes < 0) {
ERROR("error opening %s: %s\n", dev, strerror(errno));
free(dev_arg);
uninit();
return 1;
}
free(dev_arg);
/* check if we really are dealing with a zoran card */
if (ioctl(p->vdes, MJPIOC_G_PARAMS, &p->zp) < 0) {
ERROR("%s probably is not a DC10(+)/buz/lml33\n", dev);
uninit();
return 1;
}
VERBOSE("kernel driver version %d.%d, current norm is %s\n",
p->zp.major_version, p->zp.minor_version,
normstring(p->zp.norm));
/* changing the norm in the zoran_params and MJPIOC_S_PARAMS
* does nothing the last time I tried, so bail out if the norm
* is not correct */
if (norm != VIDEO_MODE_AUTO && p->zp.norm != norm) {
ERROR("mplayer currently can't change the video norm, "
"change it with (eg.) XawTV and retry.\n");
uninit();
return 1;
}
/* gather useful information */
if (ioctl(p->vdes, VIDIOCGCAP, &p->vc) < 0) {
ERROR("error getting video capabilities from %s\n", dev);
uninit();
return 1;
}
VERBOSE("card reports maxwidth=%d, maxheight=%d\n",
p->vc.maxwidth, p->vc.maxheight);
/* according to the mjpegtools source, some cards return a bogus
* vc.maxwidth, correct it here. If a new zoran card appears with a
* maxwidth different 640, 720 or 768 this code may lead to problems */
if (p->vc.maxwidth != 640 && p->vc.maxwidth != 768) {
VERBOSE("card probably reported bogus width (%d), "
"changing to 720\n", p->vc.maxwidth);
p->vc.maxwidth = 720;
}
p->zrq.count = ZR2_MJPEG_NBUFFERS;
p->zrq.size = ZR2_MJPEG_SIZE;
if (ioctl(p->vdes, MJPIOC_REQBUFS, &p->zrq)) {
ERROR("error requesting %d buffers of size %d\n",
ZR2_MJPEG_NBUFFERS, ZR2_MJPEG_NBUFFERS);
uninit();
return 1;
}
VERBOSE("got %ld buffers of size %ld (wanted %d buffers of size %d)\n",
p->zrq.count, p->zrq.size, ZR2_MJPEG_NBUFFERS,
ZR2_MJPEG_SIZE);
p->buf = (unsigned char*)mmap(0, p->zrq.count*p->zrq.size,
PROT_READ|PROT_WRITE, MAP_SHARED, p->vdes, 0);
if (p->buf == MAP_FAILED) {
ERROR("error mapping requested buffers: %s", strerror(errno));
uninit();
return 1;
}
return 0;
}
