openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

93 lines
2.9 KiB

#include "camera_frame_stream.h"
#include <unistd.h>
#include <cassert>
#include <capnp/dynamic.h>
#include "messaging.hpp"
#include "common/util.h"
#define FRAME_WIDTH 1164
#define FRAME_HEIGHT 874
extern ExitHandler do_exit;
namespace {
void camera_init(VisionIpcServer * v, CameraState *s, int camera_id, unsigned int fps, cl_device_id device_id, cl_context ctx, VisionStreamType rgb_type, VisionStreamType yuv_type) {
assert(camera_id < ARRAYSIZE(cameras_supported));
s->ci = cameras_supported[camera_id];
assert(s->ci.frame_width != 0);
s->camera_num = camera_id;
s->fps = fps;
s->buf.init(device_id, ctx, s, v, FRAME_BUF_COUNT, rgb_type, yuv_type);
}
void run_frame_stream(CameraState &camera, const char* frame_pkt) {
SubMaster sm({frame_pkt});
size_t buf_idx = 0;
while (!do_exit) {
if (sm.update(1000) == 0) continue;
auto msg = static_cast<capnp::DynamicStruct::Reader>(sm[frame_pkt]);
auto frame = msg.get(frame_pkt).as<capnp::DynamicStruct>();
camera.buf.camera_bufs_metadata[buf_idx] = {
.frame_id = frame.get("frameId").as<uint32_t>(),
.timestamp_eof = frame.get("timestampEof").as<uint64_t>(),
.frame_length = frame.get("frameLength").as<unsigned>(),
.integ_lines = frame.get("integLines").as<unsigned>(),
.global_gain = frame.get("globalGain").as<unsigned>(),
};
cl_command_queue q = camera.buf.camera_bufs[buf_idx].copy_q;
cl_mem yuv_cl = camera.buf.camera_bufs[buf_idx].buf_cl;
auto image = frame.get("image").as<capnp::Data>();
clEnqueueWriteBuffer(q, yuv_cl, CL_TRUE, 0, image.size(), image.begin(), 0, NULL, NULL);
camera.buf.queue(buf_idx);
buf_idx = (buf_idx + 1) % FRAME_BUF_COUNT;
}
}
} // namespace
// TODO: make this more generic
CameraInfo cameras_supported[CAMERA_ID_MAX] = {
[CAMERA_ID_IMX298] = {
.frame_width = FRAME_WIDTH,
.frame_height = FRAME_HEIGHT,
.frame_stride = FRAME_WIDTH*3,
.bayer = false,
.bayer_flip = false,
},
[CAMERA_ID_OV8865] = {
.frame_width = 1632,
.frame_height = 1224,
.frame_stride = 2040, // seems right
.bayer = false,
.bayer_flip = 3,
.hdr = false
},
};
void cameras_init(VisionIpcServer *v, MultiCameraState *s, cl_device_id device_id, cl_context ctx) {
camera_init(v, &s->rear, CAMERA_ID_IMX298, 20, device_id, ctx,
VISION_STREAM_RGB_BACK, VISION_STREAM_YUV_BACK);
camera_init(v, &s->front, CAMERA_ID_OV8865, 10, device_id, ctx,
VISION_STREAM_RGB_FRONT, VISION_STREAM_YUV_FRONT);
}
void cameras_open(MultiCameraState *s) {}
void cameras_close(MultiCameraState *s) {}
void camera_autoexposure(CameraState *s, float grey_frac) {}
void camera_process_rear(MultiCameraState *s, CameraState *c, int cnt) {}
void cameras_run(MultiCameraState *s) {
std::thread t = start_process_thread(s, "processing", &s->rear, camera_process_rear);
set_thread_name("frame_streaming");
run_frame_stream(s->rear, "roadCameraState");
t.join();
}