rs2::frame hole_filling_filter::prepare_target_frame(const rs2::frame& f, const rs2::frame_source& source)
{
// Allocate and copy the content of the input data to the target
rs2::frame tgt = source.allocate_video_frame(_target_stream_profile, f, int(_bpp), int(_width), int(_height), int(_stride), _extension_type);
memmove(const_cast<void*>(tgt.get_data()), f.get_data(), _current_frm_size_pixels * _bpp);
return tgt;
}
rs2::frame align::allocate_aligned_frame(const rs2::frame_source& source, const rs2::video_frame& from, const rs2::video_frame& to)
{
rs2::frame rv;
auto from_bytes_per_pixel = from.get_bytes_per_pixel();
auto from_profile = from.get_profile().as<rs2::video_stream_profile>();
auto to_profile = to.get_profile().as<rs2::video_stream_profile>();
auto aligned_profile = create_aligned_profile(from_profile, to_profile);
auto ext = from.is<rs2::depth_frame>() ? RS2_EXTENSION_DEPTH_FRAME : RS2_EXTENSION_VIDEO_FRAME;
rv = source.allocate_video_frame(
*aligned_profile,
from,
from_bytes_per_pixel,
to.get_width(),
to.get_height(),
to.get_width() * from_bytes_per_pixel,
ext);
return rv;
}
rs2::frame yuy2rgb::process_frame(const rs2::frame_source& source, const rs2::frame& f)
{
auto p = f.get_profile();
if (p.get() != _source_stream_profile.get())
{
_source_stream_profile = p;
_target_stream_profile = p.clone(p.stream_type(), p.stream_index(), RS2_FORMAT_RGB8);
}
rs2::frame ret;
auto vf = f.as<rs2::video_frame>();
ret = source.allocate_video_frame(_target_stream_profile, f, _traget_bpp,
vf.get_width(), vf.get_height(), vf.get_width() * _traget_bpp, RS2_EXTENSION_VIDEO_FRAME);
byte* planes[1];
planes[0] = (byte*)ret.get_data();
unpack_yuy2_rgb8(planes, (const byte*)f.get_data(), vf.get_width(), vf.get_height());
return ret;
}
rs2::frame disparity_transform::prepare_target_frame(const rs2::frame& f, const rs2::frame_source& source)
{
return source.allocate_video_frame(_target_stream_profile, f, int(_bpp), int(_width), int(_height), int(_width*_bpp),
_transform_to_disparity ? RS2_EXTENSION_DISPARITY_FRAME :RS2_EXTENSION_DEPTH_FRAME);
}
rs2::frame colorizer::process_frame(const rs2::frame_source& source, const rs2::frame& f)
{
if (f.get_profile().get() != _source_stream_profile.get())
{
_source_stream_profile = f.get_profile();
_target_stream_profile = f.get_profile().clone(RS2_STREAM_DEPTH, 0, RS2_FORMAT_RGB8);
}
auto make_equalized_histogram = [this](const rs2::video_frame& depth, rs2::video_frame rgb)
{
const auto max_depth = 0x10000;
static uint32_t histogram[max_depth];
memset(histogram, 0, sizeof(histogram));
const auto w = depth.get_width(), h = depth.get_height();
const auto depth_data = reinterpret_cast<const uint16_t*>(depth.get_data());
auto rgb_data = reinterpret_cast<uint8_t*>(const_cast<void *>(rgb.get_data()));
for (auto i = 0; i < w*h; ++i) ++histogram[depth_data[i]];
for (auto i = 2; i < max_depth; ++i) histogram[i] += histogram[i - 1]; // Build a cumulative histogram for the indices in [1,0xFFFF]
auto cm = _maps[_map_index];
for (auto i = 0; i < w*h; ++i)
{
auto d = depth_data[i];
if (d)
{
auto f = histogram[d] / (float)histogram[0xFFFF]; // 0-255 based on histogram location
auto c = cm->get(f);
rgb_data[i * 3 + 0] = (uint8_t)c.x;
rgb_data[i * 3 + 1] = (uint8_t)c.y;
rgb_data[i * 3 + 2] = (uint8_t)c.z;
}
else
{
rgb_data[i * 3 + 0] = 0;
rgb_data[i * 3 + 1] = 0;
rgb_data[i * 3 + 2] = 0;
}
}
};
auto make_value_cropped_frame = [this](const rs2::video_frame& depth, rs2::video_frame rgb)
{
const auto max_depth = 0x10000;
const auto w = depth.get_width(), h = depth.get_height();
const auto depth_data = reinterpret_cast<const uint16_t*>(depth.get_data());
auto rgb_data = reinterpret_cast<uint8_t*>(const_cast<void *>(rgb.get_data()));
auto fi = (frame_interface*)depth.get();
auto df = dynamic_cast<librealsense::depth_frame*>(fi);
auto depth_units = df->get_units();
for (auto i = 0; i < w*h; ++i)
{
auto d = depth_data[i];
if (d)
{
auto f = (d * depth_units - _min) / (_max - _min);
auto c = _maps[_map_index]->get(f);
rgb_data[i * 3 + 0] = (uint8_t)c.x;
rgb_data[i * 3 + 1] = (uint8_t)c.y;
rgb_data[i * 3 + 2] = (uint8_t)c.z;
}
else
{
rgb_data[i * 3 + 0] = 0;
rgb_data[i * 3 + 1] = 0;
rgb_data[i * 3 + 2] = 0;
}
}
};
rs2::frame ret;
auto vf = f.as<rs2::video_frame>();
//rs2_extension ext = f.is<rs2::disparity_frame>() ? RS2_EXTENSION_DISPARITY_FRAME : RS2_EXTENSION_DEPTH_FRAME;
ret = source.allocate_video_frame(_target_stream_profile, f, 3, vf.get_width(), vf.get_height(), vf.get_width() * 3, RS2_EXTENSION_VIDEO_FRAME);
if (_equalize)
make_equalized_histogram(f, ret);
else
make_value_cropped_frame(f, ret);
return ret;
}