static int returnFrame(AWCameraDevice *p, int id)
{
AWCameraDevice* camera_dev = (AWCameraDevice *)(p);
AWCameraContext* CameraCtx = NULL;
int err = 0;
if(!camera_dev)
return -1;
CameraCtx = (AWCameraContext *)(camera_dev->context);
CameraReturnOneframe(CameraCtx->v4l2ctx, id);
return 0;
}
int main()
{
int ret = 0;
void * mV4l2_ctx = NULL;
int mCaptureFormat;
int width = 1280;
int height = 720;
int number = 0;
struct v4l2_buffer buf;
memset(&buf, 0, sizeof(buf));
mV4l2_ctx = CreateV4l2Context();
setV4L2DeviceName(mV4l2_ctx, "/dev/video1");
// open v4l2 camera device
ret = OpenCamera(mV4l2_ctx);
if (ret != 0)
{
LOGE("openCameraDevice failed\n");
return ret;
}
StartCamera(mV4l2_ctx, &width, &height);
while(number < 300) {
CameraGetOneframe(mV4l2_ctx,&buf);
CameraReturnOneframe(mV4l2_ctx,buf.index);
LOGD("test, number: %d",number);
number ++;
}
StopCamera(mV4l2_ctx);
CloseCamera(mV4l2_ctx);
DestroyV4l2Context(mV4l2_ctx);
mV4l2_ctx = NULL;
return 0;
}
static void* CameraThread(void* pThreadData) {
int result;
int state = 1;
AWCameraDevice* camera_dev = (AWCameraDevice *)(pThreadData);
AWCameraContext* CameraCtx = NULL;
int err = 0;
struct v4l2_buffer buf;
CameraCtx = (AWCameraContext*)(camera_dev->context);
while(1) {
state = get_state(CameraCtx);
if(state == 0) {
goto EXIT;
}
result = CameraGetOneframe(CameraCtx->v4l2ctx, &buf);
if(result== 0) {
if( CameraCtx->callback.cookie == NULL) {
LOGE("the callback isn't register");
CameraReturnOneframe(CameraCtx->v4l2ctx, buf.index);
}else {
// LOGD("CALL Callback");
CameraCtx->callback.callback(CameraCtx->callback.cookie, &buf);
}
}else {
LOGE("get frame error");
//goto EXIT;
}
}
EXIT:
set_state(CameraCtx,0);
return (void *)0;
}