void
sane_close (SANE_Handle handle)
{
V4L_Scanner *prev, *s;
DBG (2, "sane_close: trying to close handle %p\n", (void *) handle);
/* remove handle from list of open handles: */
prev = 0;
for (s = first_handle; s; s = s->next)
{
if (s == handle)
break;
prev = s;
}
if (!s)
{
DBG (1, "sane_close: bad handle %p\n", handle);
return; /* oops, not a handle we know about */
}
if (prev)
prev->next = s->next;
else
first_handle = s->next;
if (s->scanning)
sane_cancel (handle);
v4l1_close (s->fd);
free (s);
}
void copytoscreen(char* tmap) {
int loop=0;
do{
SDL_PollEvent(&event);
if (event.type == SDL_KEYDOWN) {
v4l1_close(fd);
SDL_Quit();
exit(0);
}
// usleep(20);
} while(loop++<20);
offscreen = SDL_CreateRGBSurfaceFrom((void *) tmap, mywidth, myheight, 24, mywidth*3, 0xFF0000, 0x00FF00, 0x0000FF, 0x000000);
SDL_BlitSurface(offscreen, NULL, screen, NULL);
SDL_UpdateRect(screen, 0, 0, 0, 0);
SDL_FreeSurface(offscreen);
}
static int v4l1_cleanup (zbar_video_t *vdo)
{
#ifdef HAVE_SYS_MMAN_H
/* FIXME should avoid holding onto mmap'd buffers so long? */
if(vdo->iomode == VIDEO_MMAP && vdo->buf) {
if(v4l1_munmap(vdo->buf, vdo->buflen))
return(err_capture(vdo, SEV_ERROR, ZBAR_ERR_SYSTEM, __func__,
"unmapping video frame buffers"));
vdo->buf = NULL;
/* FIXME reset image */
}
#endif
/* close open device */
if(vdo->fd >= 0) {
v4l1_close(vdo->fd);
vdo->fd = -1;
}
return(0);
}
int main(int argc, char** argv)
{
if(argc == 2) {
strcpy(my_video_dev, argv[1]);
} else {
strcpy(my_video_dev, "/dev/video0");
}
//if (-1 == (fd = open(my_video_dev, O_RDWR))) {
if (-1 == (fd = v4l1_open(my_video_dev, O_RDWR))) {
printf("Error opening device: %s\n", my_video_dev);
goto error;
}
//if( -1 == ioctl(fd, VIDIOC_QUERYCAP, &v4l2_capability) ) {
if( ioctl(fd, VIDIOC_QUERYCAP, &v4l2_capability) < 0 ) {
printf("asd 1\n");
if( -1 == ioctl(fd, VIDIOCGCAP, &capability) ) {
printf("asd 2\n");
printf("Error1: ioctl(fd,VIDIOCGCAP,&capability)\n");
camDriver = DRIVER_NONE;
goto error;
} else {
printf("asd 3\n");
camDriver = DRIVER_V4L;
}
} else {
printf("asd 4\n");
camDriver = DRIVER_V4L2;
v4l1_close(fd);
fd = v4l1_open(my_video_dev, O_RDWR);
if( -1 == my_ioctl(VIDIOCGCAP, &capability)) {
printf("asd 5\n");
printf("Error2: ioctl(fd,VIDIOCGCAP,&capability)\n");
goto error;
}
}
// if( DRIVER_V4L == camDriver ) {
printf("\n -----[ VIDIOCGCAP returns ]-----\n");
printf(" name: %s\n", capability.name);
printf(" type: %i\n", capability.type);
printf(" channels: %i\n", capability.channels);
printf(" audios: %i\n", capability.audios);
printf(" maxwidth: %i\n", capability.maxwidth);
printf(" maxheight: %i\n", capability.maxheight);
printf(" minwidth: %i\n", capability.minwidth);
printf(" minheight: %i\n", capability.minheight);
// }
if (-1 == my_ioctl(VIDIOCGPICT,&picture)) {
printf("Error: ioctl(fd,VIDIOCGCPICT,&picture)\n");
goto error;
}
printf("\n -----[ VIDIOCGPICT returns ]-----\n");
printf(" brightness: %i\n", picture.brightness);
printf(" hue: %i\n", picture.hue);
printf(" colour: %i\n", picture.colour);
printf(" contrast: %i\n", picture.contrast);
printf(" whiteness: %i\n", picture.whiteness);
printf(" depth: %i\n", picture.depth);
char static palet_tipi_str[64];
palette_name(palet_tipi_str, picture.palette);
printf(" palette: %s\n\n", palet_tipi_str);
vch.channel = 0;
// vch.norm = VIDEO_MODE_PAL;
if(-1 == my_ioctl(VIDIOCSCHAN,&vch)) {
perror("Setting channel\n");
goto error;
}
fcntl(fd,F_SETFD,FD_CLOEXEC);
if (-1 == my_ioctl(VIDIOCGMBUF,&gb_buffers)) {
printf("Error: Error getting buffers\n");
goto error;
}
map = my_mmap(0,gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,fd,0);
if (map == NULL) {
printf("Error: Mmap returned NULL\n");
goto error;
}
// Set up out capture to use the correct resolution
my_buf.width = mywidth;
my_buf.height = myheight;
my_buf.format = VIDEO_PALETTE_RGB24;
// Set up out video output
SDL_Init(SDL_INIT_VIDEO);
screen = SDL_SetVideoMode(mywidth, myheight, 24, SDL_SWSURFACE);
if ( screen == NULL ) {
fprintf(stderr, "Couldn't set video mode: %s\n",
SDL_GetError());
exit(1);
}
SDL_WM_SetCaption("Oy oy oy teve pirogrami", NULL);
// Tell the capture card to fill frame 0
my_buf.frame = 0;
if (-1 == my_ioctl(VIDIOCMCAPTURE, &my_buf)) {
printf(" ilk my_buf.frame=0 da hata olustu\n");
// printf("Error: Grabber chip can't sync (no station tuned in?)\n");
goto error;
}
// This is the infinate loop
// We basically:
// capture frame 1
// sync frame 0
// process frame 0
// capture frame 0
// sync frame 1
// process frame 1
// For more information, read the programming how-to that came with xawtv
do {
my_buf.frame = 1;
if (-1 == my_ioctl(VIDIOCMCAPTURE, &my_buf)) {
printf(" loop icinde frame=1 \n");
// printf("Error: Grabber chip can't sync (no station tuned in?)\n");
goto error;
}
my_buf.frame = 0;
if (-1 == my_ioctl(VIDIOCSYNC, &my_buf.frame)) {
printf("Error on sync!\n");
goto error;
}
copytoscreen(map);
my_buf.frame = 0;
if (-1 == my_ioctl(VIDIOCMCAPTURE, &my_buf)) {
printf(" loop icinde frame=0 \n");
// printf("Error: Grabber chip can't sync (no station tuned in?)\n");
goto error;
}
my_buf.frame = 1;
if (-1 == my_ioctl(VIDIOCSYNC, &my_buf.frame)) {
printf("Error on sync!\n");
goto error;
}
copytoscreen(map + gb_buffers.offsets[1]);
SDL_PollEvent(&event);
} while (event.type != SDL_KEYDOWN);
error:
SDL_Quit();
return EXIT_SUCCESS;
}
LIBV4L_PUBLIC int close(int fd)
{
return v4l1_close(fd);
}
SANE_Status
sane_open (SANE_String_Const devname, SANE_Handle * handle)
{
V4L_Device *dev;
V4L_Scanner *s;
static int v4lfd;
int i;
struct video_channel channel;
SANE_Status status;
int max_channels = MAX_CHANNELS;
if (!devname)
{
DBG (1, "sane_open: devname == 0\n");
return SANE_STATUS_INVAL;
}
for (dev = first_dev; dev; dev = dev->next)
if (strcmp (dev->sane.name, devname) == 0)
{
DBG (5, "sane_open: device %s found in devlist\n", devname);
break;
}
if (!devname[0])
dev = first_dev;
if (!dev)
{
DBG (1, "sane_open: device %s doesn't seem to be a v4l "
"device\n", devname);
return SANE_STATUS_INVAL;
}
v4lfd = v4l1_open (devname, O_RDWR);
if (v4lfd == -1)
{
DBG (1, "sane_open: can't open %s (%s)\n", devname, strerror (errno));
return SANE_STATUS_INVAL;
}
s = malloc (sizeof (*s));
if (!s)
return SANE_STATUS_NO_MEM;
memset (s, 0, sizeof (*s));
s->user_corner = 0; /* ??? */
s->devicename = devname;
s->fd = v4lfd;
if (v4l1_ioctl (s->fd, VIDIOCGCAP, &s->capability) == -1)
{
DBG (1, "sane_open: ioctl (%d, VIDIOCGCAP,..) failed on `%s': %s\n",
s->fd, devname, strerror (errno));
v4l1_close (s->fd);
return SANE_STATUS_INVAL;
}
DBG (5, "sane_open: %d channels, %d audio devices\n",
s->capability.channels, s->capability.audios);
DBG (5, "sane_open: minwidth=%d, minheight=%d, maxwidth=%d, "
"maxheight=%d\n", s->capability.minwidth, s->capability.minheight,
s->capability.maxwidth, s->capability.maxheight);
if (VID_TYPE_CAPTURE & s->capability.type)
DBG (5, "sane_open: V4L device can capture to memory\n");
if (VID_TYPE_TUNER & s->capability.type)
DBG (5, "sane_open: V4L device has a tuner of some form\n");
if (VID_TYPE_TELETEXT & s->capability.type)
DBG (5, "sane_open: V4L device supports teletext\n");
if (VID_TYPE_OVERLAY & s->capability.type)
DBG (5, "sane_open: V4L device can overlay its image onto the frame "
"buffer\n");
if (VID_TYPE_CHROMAKEY & s->capability.type)
DBG (5, "sane_open: V4L device uses chromakey on overlay\n");
if (VID_TYPE_CLIPPING & s->capability.type)
DBG (5, "sane_open: V4L device supports overlay clipping\n");
if (VID_TYPE_FRAMERAM & s->capability.type)
DBG (5, "sane_open: V4L device overwrites frame buffer memory\n");
if (VID_TYPE_SCALES & s->capability.type)
DBG (5, "sane_open: V4L device supports hardware scaling\n");
if (VID_TYPE_MONOCHROME & s->capability.type)
DBG (5, "sane_open: V4L device is grey scale only\n");
if (VID_TYPE_SUBCAPTURE & s->capability.type)
DBG (5, "sane_open: V4L device can capture parts of the image\n");
if (s->capability.channels < max_channels)
max_channels = s->capability.channels;
for (i = 0; i < max_channels; i++)
{
channel.channel = i;
if (-1 == v4l1_ioctl (v4lfd, VIDIOCGCHAN, &channel))
{
DBG (1, "sane_open: can't ioctl VIDIOCGCHAN %s: %s\n", devname,
strerror (errno));
return SANE_STATUS_INVAL;
}
DBG (5, "sane_open: channel %d (%s), tuners=%d, flags=0x%x, "
"type=%d, norm=%d\n", channel.channel, channel.name,
channel.tuners, channel.flags, channel.type, channel.norm);
if (VIDEO_VC_TUNER & channel.flags)
DBG (5, "sane_open: channel has tuner(s)\n");
if (VIDEO_VC_AUDIO & channel.flags)
DBG (5, "sane_open: channel has audio\n");
if (VIDEO_TYPE_TV == channel.type)
DBG (5, "sane_open: input is TV input\n");
if (VIDEO_TYPE_CAMERA == channel.type)
DBG (5, "sane_open: input is camera input\n");
s->channel[i] = strdup (channel.name);
if (!s->channel[i])
return SANE_STATUS_NO_MEM;
}
s->channel[i] = 0;
if (-1 == v4l1_ioctl (v4lfd, VIDIOCGPICT, &s->pict))
{
DBG (1, "sane_open: can't ioctl VIDIOCGPICT %s: %s\n", devname,
strerror (errno));
return SANE_STATUS_INVAL;
}
DBG (5, "sane_open: brightness=%d, hue=%d, colour=%d, contrast=%d\n",
s->pict.brightness, s->pict.hue, s->pict.colour, s->pict.contrast);
DBG (5, "sane_open: whiteness=%d, depth=%d, palette=%d\n",
s->pict.whiteness, s->pict.depth, s->pict.palette);
/* ??? */
s->pict.palette = VIDEO_PALETTE_GREY;
if (-1 == v4l1_ioctl (s->fd, VIDIOCSPICT, &s->pict))
{
DBG (1, "sane_open: ioctl VIDIOCSPICT failed (%s)\n", strerror (errno));
}
if (-1 == v4l1_ioctl (s->fd, VIDIOCGWIN, &s->window))
{
DBG (1, "sane_open: can't ioctl VIDIOCGWIN %s: %s\n", devname,
strerror (errno));
return SANE_STATUS_INVAL;
}
DBG (5, "sane_open: x=%d, y=%d, width=%d, height=%d\n",
s->window.x, s->window.y, s->window.width, s->window.height);
/* already done in sane_start
if (-1 == v4l1_ioctl (v4lfd, VIDIOCGMBUF, &mbuf))
DBG (1, "sane_open: can't ioctl VIDIOCGMBUF (no Fbuffer?)\n");
*/
status = init_options (s);
if (status != SANE_STATUS_GOOD)
return status;
update_parameters (s);
/* insert newly opened handle into list of open handles: */
s->next = first_handle;
first_handle = s;
*handle = s;
return SANE_STATUS_GOOD;
}
static SANE_Status
attach (const char *devname, V4L_Device ** devp)
{
V4L_Device *dev;
static int v4lfd;
static struct video_capability capability;
errno = 0;
for (dev = first_dev; dev; dev = dev->next)
if (strcmp (dev->sane.name, devname) == 0)
{
if (devp)
*devp = dev;
DBG (5, "attach: device %s is already known\n", devname);
return SANE_STATUS_GOOD;
}
DBG (3, "attach: trying to open %s\n", devname);
v4lfd = v4l1_open (devname, O_RDWR);
if (v4lfd != -1)
{
if (v4l1_ioctl (v4lfd, VIDIOCGCAP, &capability) == -1)
{
DBG (1,
"attach: ioctl (%d, VIDIOCGCAP,..) failed on `%s': %s\n",
v4lfd, devname, strerror (errno));
v4l1_close (v4lfd);
return SANE_STATUS_INVAL;
}
if (!(VID_TYPE_CAPTURE & capability.type))
{
DBG (1, "attach: device %s can't capture to memory -- exiting\n",
devname);
v4l1_close (v4lfd);
return SANE_STATUS_UNSUPPORTED;
}
DBG (2, "attach: found videodev `%s' on `%s'\n", capability.name,
devname);
v4l1_close (v4lfd);
}
else
{
DBG (1, "attach: failed to open device `%s': %s\n", devname,
strerror (errno));
return SANE_STATUS_INVAL;
}
dev = malloc (sizeof (*dev));
if (!dev)
return SANE_STATUS_NO_MEM;
memset (dev, 0, sizeof (*dev));
dev->sane.name = strdup (devname);
if (!dev->sane.name)
return SANE_STATUS_NO_MEM;
dev->sane.vendor = "Noname";
dev->sane.model = strdup (capability.name);
if (!dev->sane.model)
return SANE_STATUS_NO_MEM;
dev->sane.type = "virtual device";
++num_devices;
dev->next = first_dev;
first_dev = dev;
if (devp)
*devp = dev;
return SANE_STATUS_GOOD;
}
