struct video_tuner tuner;
struct video_audio audio;
const char *video_device;
+ int j;
if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
return -1;
}
goto fail;
}
+ for (j = 1; j < s->gb_buffers.frames; j++) {
+ s->gb_buf.frame = j;
+ ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
+ }
s->frame_format = s->gb_buf.format;
s->use_mmap = 1;
}
{
uint8_t *ptr;
+ while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
+ (errno == EAGAIN || errno == EINTR));
+
+ ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
+ memcpy(buf, ptr, s->frame_size);
+
/* Setup to capture the next frame */
- s->gb_buf.frame = (s->gb_frame + 1) % s->gb_buffers.frames;
+ s->gb_buf.frame = s->gb_frame;
if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
if (errno == EAGAIN)
av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
return -EIO;
}
- while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
- (errno == EAGAIN || errno == EINTR));
-
- ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
- memcpy(buf, ptr, s->frame_size);
-
/* This is now the grabbing frame */
- s->gb_frame = s->gb_buf.frame;
+ s->gb_frame = (s->gb_frame + 1) % s->gb_buffers.frames;
return s->frame_size;
}