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bktr tweaks from Jacob Meuser

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This commit is contained in:
jolan 2004-10-06 01:34:48 +00:00
parent 2f2f43baac
commit ceb5c0942c
1 changed files with 23 additions and 19 deletions
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42
graphics/ffmpeg/files/grab_bsdbktr.c
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@ -1,4 +1,4 @@
/* $OpenBSD: grab_bsdbktr.c,v 1.2 2004/07/11 00:48:57 jolan Exp $
/* $OpenBSD: grab_bsdbktr.c,v 1.3 2004/10/06 01:34:48 jolan Exp $
*
* FreeBSD video grab interface
* Copyright (c) 2002 Steve O'Hara-Smith
@ -66,7 +66,7 @@ const char *video_device = "/dev/bktr0";
static int bktr_dev[] = { METEOR_DEV0, METEOR_DEV1, METEOR_DEV2,
METEOR_DEV3, METEOR_DEV_SVIDEO };
static u_int8_t *video_buf;
unsigned char *video_buf;
static int nsignals = 0;
static void catchsignal(int signal)
{
@ -75,7 +75,7 @@ static void catchsignal(int signal)
}
static int bktr_init (const char *video_device, int width, int height,
int format, u_int8_t **video_buf, int *video_fd, int *tuner_fd,
int format, int video_fd, int tuner_fd,
int idev, double frequency)
{
struct meteor_geomet geo;
@ -117,13 +117,13 @@ static int bktr_init (const char *video_device, int width, int height,
act.sa_handler = catchsignal;
sigaction(SIGUSR1,&act,&old);
*tuner_fd = open ("/dev/tuner0", O_RDONLY);
if (*tuner_fd < 0) {
tuner_fd = open ("/dev/tuner0", O_RDONLY);
if (tuner_fd < 0) {
perror("Warning: Tuner not opened continuing");
}
*video_fd = open (video_device, O_RDONLY);
if (*video_fd < 0) {
video_fd = open (video_device, O_RDONLY);
if (video_fd < 0) {
perror (video_device);
return -1;
}
@ -147,36 +147,36 @@ static int bktr_init (const char *video_device, int width, int height,
geo.oformat |= METEOR_GEO_EVEN_ONLY;
}
if (ioctl(*video_fd, METEORSETGEO, &geo) < 0) {
if (ioctl(video_fd, METEORSETGEO, &geo) < 0) {
perror ("METEORSETGEO");
return -1;
}
if (ioctl(*video_fd, BT848SFMT, &c) < 0) {
if (ioctl(video_fd, BT848SFMT, &c) < 0) {
perror ("BT848SFMT");
return -1;
}
c = bktr_dev[idev];
if (ioctl(*video_fd, METEORSINPUT, &c) < 0) {
if (ioctl(video_fd, METEORSINPUT, &c) < 0) {
perror ("METEORSINPUT");
return -1;
}
*video_buf = (u_int8_t *) mmap((caddr_t)0, width*height*2,
PROT_READ, MAP_SHARED, *video_fd, (off_t) 0);
if (*video_buf == MAP_FAILED) {
video_buf = (unsigned char *) mmap((caddr_t)0, width*height*2,
PROT_READ, MAP_SHARED, video_fd, (off_t) 0);
if (video_buf == MAP_FAILED) {
perror ("mmap");
return -1;
}
if (frequency != 0.0) {
ioctl_frequency = (unsigned long)(frequency*16);
if (ioctl(*tuner_fd, TVTUNER_SETFREQ, &ioctl_frequency)<0)
if (ioctl(tuner_fd, TVTUNER_SETFREQ, &ioctl_frequency)<0)
perror("TVTUNER_SETFREQ");
}
c = METEOR_CAP_CONTINOUS;
ioctl(*video_fd, METEORCAPTUR, &c);
ioctl(video_fd, METEORCAPTUR, &c);
c = SIGUSR1;
ioctl (*video_fd, METEORSSIGNAL, &c);
ioctl (video_fd, METEORSSIGNAL, &c);
return 0;
}
@ -188,11 +188,14 @@ static void bktr_getframe(u_int64_t per_frame)
curtime = av_gettime();
if (!last_frame_time
|| ((last_frame_time + per_frame) > curtime)) {
usleep (last_frame_time + per_frame + per_frame/8 - curtime);
#if 0
if (!usleep (last_frame_time + per_frame + per_frame/8 - curtime)) {
if (!nsignals)
printf ("\nSLEPT NO signals - %d microseconds late\n",
(int) (av_gettime() - last_frame_time - per_frame));
}
#endif
}
nsignals = 0;
@ -279,8 +282,8 @@ static int grab_read_header (AVFormatContext *s1, AVFormatParameters *ap)
format = NTSC;
}
if (bktr_init (video_device, width, height, format, &video_buf,
&(s->fd), &(s->tuner_fd), -1, 0.0) < 0)
if (bktr_init (video_device, width, height, format,
s->fd, s->tuner_fd, -1, 0.0) < 0)
return -EIO;
return 0;
}
@ -293,7 +296,8 @@ static int grab_read_close (AVFormatContext *s1)
ioctl(s->fd, METEORCAPTUR, &c);
close(s->fd);
close(s->tuner_fd);
av_free(s);
munmap((caddr_t)video_buf, sizeof(video_buf));
// av_free(s);
return 0;
}