status_e UVCVisionCam::releaseBuffers(VisionCamPort_e port __attribute__((unused)))
{
if (v4l2_free(m_dev))
return STATUS_SUCCESS;
else
return STATUS_FAILURE;
}
void vid_free(vid_t vid)
{
struct vid *v = vid;
v4l2_stop_capture(v->cam);
fbd_free(v->fbd);
if (v->enc)
jpg_enc_free(v->enc);
if (v->dec)
jpg_dec_free(v->dec);
v4l2_free(v->cam);
free(v);
}
int main(int argc, char *argv[])
{
app_t a = app_create(0);
v4l2_dev_t v = v4l2_create(a, "/dev/video2", 0, 0);
v4l2_set_img_proc(v, img_proc, v);
v4l2_start_capture(v);
app_exec(a);
v4l2_stop_capture(v);
v4l2_free(v);
app_free(a);
return 0;
}
int main(int argc, char *argv[])
{
app_t a = app_create(0);
jpg_dec_t d = jpg_dec_create();
v4l2_dev_t v = v4l2_create(a, NULL, 0, 0);
v4l2_set_img_proc(v, img_proc, d);
v4l2_start_capture(v);
app_exec(a);
v4l2_stop_capture(v);
v4l2_free(v);
jpg_dec_free(d);
app_free(a);
return 0;
}
vid_t vid_create(struct wcamsrv *ws)
{
struct v4l2_fmtdesc fmt;
struct vid *v = calloc(1, sizeof(struct vid));
if (!v) {
perror("vid_create");
return NULL;
}
v->srv = ws;
v->cam = v4l2_create(v->srv->app, cfg_get_camdev(v->srv->cfg),
cfg_get_cam_fmt_nr(v->srv->cfg),
cfg_get_cam_frm_nr(v->srv->cfg));
if (v->cam == NULL)
goto err_mem;
if (pthread_mutex_init(&v->tran_frm_mutex, NULL)) {
perror("vid_create: pthread_mutex_init");
goto err_v4l2;
}
v4l2_get_fmt(v->cam, 0, &fmt);
if (fmt.pixelformat == V4L2_PIX_FMT_JPEG) {
v4l2_set_img_proc(v->cam, handle_jpeg_img_proc, v);
v->dec = jpg_dec_create();
if (v->dec == NULL)
goto err_mutex;
} else if (fmt.pixelformat == V4L2_PIX_FMT_YUYV) {
v4l2_set_img_proc(v->cam, handle_yuyv_img_proc, v);
v->enc = jpg_enc_create();
if (v->enc == NULL)
goto err_mutex;
} else {
pr_debug("Capture video format is %s, but now we just "
"support JPEG and YUYV.\n",
fmt.description);
goto err_mutex;
}
v->fbd = fbd_create(0, cfg_get_fb_bpp(v->srv->cfg), 0, 0,
cfg_get_fb_width(v->srv->cfg),
cfg_get_fb_height(v->srv->cfg));
if (v->fbd == NULL)
goto err_codec;
if (v4l2_start_capture(v->cam))
goto err_fbd;
return v;
err_fbd:
fbd_free(v->fbd);
err_codec:
if (v->enc)
jpg_enc_free(v->enc);
if (v->dec)
jpg_dec_free(v->dec);
err_mutex:
pthread_mutex_destroy(&v->tran_frm_mutex);
err_v4l2:
v4l2_free(v->cam);
err_mem:
free(v);
return NULL;
}
