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authorDavid Plowman <david.plowman@raspberrypi.com>2023-10-13 08:48:39 +0100
committerKieran Bingham <kieran.bingham@ideasonboard.com>2023-10-18 11:01:23 +0100
commitac232470fb3182b8b6299a7d317681d540561d5d (patch)
treee341e1034bf38b840638788524b141e93d607cfd /utils/ipu3
parent0ff20bf8c1d21ffbb3694b67756abc59151132cf (diff)
ipa: rpi: denoise: Support different denoise configurations
Some use cases may require stronger, or different, denosie settings to others. For example, the way frames are accumulated during single exposure HDR means that we may want stronger denoise. This commit adds such support for different configurations that can be defined in the tuning file. Older tuning files, or files where there is only a single configuration, load only the "normal" denoise configuration. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'utils/ipu3')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.1 (git 2.18.0) at 2025-02-17 07:55:49 +0000
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#!/usr/bin/env python3

# SPDX-License-Identifier: BSD-3-Clause
# Copyright (C) 2022, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

# A simple capture example extending the simple-capture.py example:
# - Capture frames using events from multiple cameras
# - Listening events from stdin to exit the application
# - Memory mapping the frames and calculating CRC

import binascii
import libcamera as libcam
import libcamera.utils
import selectors
import sys


# A container class for our state per camera
class CameraCaptureContext:
    idx: int
    cam: libcam.Camera
    reqs: list[libcam.Request]
    mfbs: dict[libcam.FrameBuffer, libcamera.utils.MappedFrameBuffer]

    def __init__(self, cam, idx):
        self.idx = idx
        self.cam = cam

        # Acquire the camera for our use

        ret = cam.acquire()
        assert ret == 0

        # Configure the camera

        cam_config = cam.generate_configuration([libcam.StreamRole.Viewfinder])

        stream_config = cam_config.at(0)

        ret = cam.configure(cam_config)
        assert ret == 0

        stream = stream_config.stream

        # Allocate the buffers for capture

        allocator = libcam.FrameBufferAllocator(cam)
        ret = allocator.allocate(stream)
        assert ret > 0

        num_bufs = len(allocator.buffers(stream))

        print(f'cam{idx} ({cam.id}): capturing {num_bufs} buffers with {stream_config}')

        # Create the requests and assign a buffer for each request

        self.reqs = []
        self.mfbs = {}

        for i in range(num_bufs):
            # Use the buffer index as the "cookie"
            req = cam.create_request(idx)

            buffer = allocator.buffers(stream)[i]
            ret = req.add_buffer(stream, buffer)
            assert ret == 0

            self.reqs.append(req)

            # Save a mmapped buffer so we can calculate the CRC later
            self.mfbs[buffer] = libcamera.utils.MappedFrameBuffer(buffer).mmap()

    def uninit_camera(self):
        # Stop the camera

        ret = self.cam.stop()
        assert ret == 0

        # Release the camera

        ret = self.cam.release()
        assert ret == 0


# A container class for our state
class CaptureContext:
    cm: libcam.CameraManager
    camera_contexts: list[CameraCaptureContext] = []

    def handle_camera_event(self):