int SecCamera::startSnapshot(size_t* captureSize)
{
LOG_TIME_START(0);
stopPreview();
LOG_TIME_END(0);
int ret;
LOG_TIME_START(1); // prepare
ret = _v4l2Cam->setupBufs(_snapshotWidth, _snapshotHeight, _snapshotPixfmt,
1, 1);
CHECK_EQ(ret, 1);
ret = _v4l2Cam->mapBuf(0);
CHECK_EQ(ret, 0);
_v4l2Cam->qBuf(0);
_v4l2Cam->startStream(true);
LOG_TIME_END(1);
LOG_CAMERA("%s: stopPreview(%lu), prepare(%lu) us",
__func__, LOG_TIME(0), LOG_TIME(1));
_v4l2Cam->mapBufInfo(0, NULL, captureSize);
return 0;
}
int SecCamera::getSnapshot(int xth)
{
int index;
int skipFirstNFrames = xth;
LOG_TIME_START(0); // skip frames
while (skipFirstNFrames) {
LOGV("skipFrames %d", skipFirstNFrames);
_v4l2Cam->waitFrame();
index = _v4l2Cam->dqBuf();
_v4l2Cam->qBuf(index);
skipFirstNFrames--;
}
_v4l2Cam->waitFrame();
index = _v4l2Cam->dqBuf();
LOG_TIME_END(0);
LOG_TIME_START(1);
_v4l2Cam->startStream(false);
LOG_TIME_END(1);
LOG_CAMERA("%s: get frame after skip %d(%lu), stopStream(%lu)",
__func__, xth, LOG_TIME(0), LOG_TIME(1));
return 0;
}
static void *surface_thread(void *arg)
{
ASurface *surface = (ASurface *)arg;
void *stream;
AndroidSurfaceInfo src, dst;
size_t size;
LOG_TIME_DEFINE(buff);
LOG_TIME_DEFINE(decode);
running = 1;
while(running == 1) {
struct jpeg_frame *jpeg;
LOG_TIME_START(buff);
size = get_image_buffer(&stream);
jpeg = stream;
g_clear_screen_client = jpeg->encode_time;
LOGD("Jerry: final g_clear_screen_client = %d",
g_clear_screen_client);
LOG_D("surface get buffer time delay: %d ms\n", (int)(timestamp() - jpeg->timestamp));
src.bits = stream + sizeof(struct jpeg_frame);
LOG_TIME_END(buff);
if((size > 0) && running)
{
LOG_TIME_START(decode);
lib_ASurface_lock(surface, &dst);
lib_ASurface_scaleToFullScreen_skia(surface, &src, &dst, size - sizeof(struct jpeg_frame));
lib_ASurface_unlockAndPost(surface);
if(first_frame)
{
char msg[128];
first_frame = 0;
frame_count = 0;
last_time = timestamp();
sprintf(msg, "surface:%d:%d", jpeg->width, jpeg->height);
}
cal_fps();
LOG_TIME_END(decode);
LOG_D("surface display time delay: %d ms, decode and display = %ld ms\n", (int)(timestamp() - jpeg->timestamp), LOG_TIME(decode) / 1000);
release_image_buffer();
}
// LOG_D("------get buff = %ld us, decode and display = %ld us-----\n",
// LOG_TIME(buff), LOG_TIME(decode));
g_clear_screen_client = 0;
}
return ((void *)0);
}