summaryrefslogtreecommitdiff
path: root/src/android/camera_worker.cpp
diff options
context:
space:
mode:
authorJacopo Mondi <jacopo@jmondi.org>2020-12-18 16:28:43 +0100
committerJacopo Mondi <jacopo@jmondi.org>2020-12-30 11:22:52 +0100
commitcb35ed23f3c7d3b03c4a6037f50934565ed8f030 (patch)
tree1eb0b778606d9890e3b0c5c97ce235c156fdfc5e /src/android/camera_worker.cpp
parent0a0264da8d6d845b743fdf7ad1092aa26eccc547 (diff)
android: camera_device: Report ColorFilterArrangement
Conditionally report the ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT property inspecting the draft property reported by the libcamera Camera. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Diffstat (limited to 'src/android/camera_worker.cpp')
0 files changed, 0 insertions, 0 deletions
3' href='#n73'>73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2020, Google Inc.
 *
 * camera_stream.h - Camera HAL stream
 */
#ifndef __ANDROID_CAMERA_STREAM_H__
#define __ANDROID_CAMERA_STREAM_H__

#include <memory>
#include <mutex>
#include <vector>

#include <hardware/camera3.h>

#include <libcamera/buffer.h>
#include <libcamera/camera.h>
#include <libcamera/framebuffer_allocator.h>
#include <libcamera/geometry.h>
#include <libcamera/pixel_format.h>

#include "libcamera/internal/buffer.h"

class CameraDevice;
class CameraMetadata;
class PostProcessor;

class CameraStream
{
public:
	/*
	 * Enumeration of CameraStream types.
	 *
	 * A camera stream associates an Android stream to a libcamera stream.
	 * This enumeration describes how the two streams are associated and how
	 * and where data produced from libcamera are delivered to the
	 * Android framework.
	 *
	 * Direct:
	 *
	 * The Android stream is directly mapped onto a libcamera stream: frames
	 * are delivered by the library directly in the memory location
	 * specified by the Android stream (buffer_handle_t->data) and provided
	 * to the framework as they are. The Android stream characteristics are
	 * directly translated to the libcamera stream configuration.
	 *
	 * +-----+                +-----+
	 * |  A  |                |  L  |
	 * +-----+                +-----+
	 *    |                      |
	 *    V                      V
	 * +-----+                +------+
	 * |  B  |<---------------|  FB  |
	 * +-----+                +------+
	 *
	 *
	 * Internal:
	 *
	 * Data for the Android stream is produced by processing a libcamera
	 * stream created by the HAL for that purpose. The libcamera stream
	 * needs to be supplied with intermediate buffers where the library
	 * delivers frames to be processed and then provided to the framework.
	 * The libcamera stream configuration is not a direct translation of the
	 * Android stream characteristics, but it describes the format and size
	 * required for the processing procedure to produce frames in the
	 * Android required format.
	 *
	 * +-----+                +-----+
	 * |  A  |                |  L  |
	 * +-----+                +-----+
	 *    |                      |
	 *    V                      V
	 * +-----+                +------+
	 * |  B  |                |  FB  |
	 * +-----+                +------+
	 *   ^                       |
	 *   |-------Processing------|
	 *
	 *
	 * Mapped:
	 *
	 * Data for the Android stream is produced by processing a libcamera
	 * stream associated with another CameraStream. Mapped camera streams do
	 * not need any memory to be reserved for them as they process data
	 * produced by libcamera for a different stream whose format and size
	 * are compatible with the processing procedure requirements to produce
	 * frames in the Android required format.
	 *
	 * +-----+      +-----+          +-----+
	 * |  A  |      |  A' |          |  L  |
	 * +-----+      +-----+          +-----+
	 *    |            |                |
	 *    V            V                V
	 * +-----+      +-----+          +------+
	 * |  B  |      |  B' |<---------|  FB  |
	 * +-----+      +-----+          +------+
	 *   ^              |
	 *   |--Processing--|
	 *
	 *
	 * --------------------------------------------------------------------
	 * A  = Android stream
	 * L  = libcamera stream
	 * B  = memory buffer