android/camera-samples
Camera Samples
O colecție de implementări de referință și mostre de cod pentru integrarea hardware-ului camerei Android și a API-urilor software. Proiectul oferă demonstrații pentru utilizarea bibliotecii Jetpack CameraX și a API-ului Camera2 de nivel scăzut pentru a implementa funcții de captură foto și video.
Repository-ul include implementări specializate pentru înregistrarea de înaltă performanță, cum ar fi slow motion cu rată mare de cadre și video high-dynamic-range (HDR). De asemenea, dispune de exemple de viziune artificială (machine learning), demonstrând cum să analizezi cadrele camerei live pentru detectarea obiectelor și scanarea codurilor QR.
Proiectul acoperă capabilități largi de imagistică, inclusiv achiziția de imagini statice, randarea viewfinder-ului live și configurarea calității video. Detaliază în continuare utilizarea extensiilor hardware specifice producătorului pentru a aplica efecte precum bokeh, night mode și HDR.
Mostrele includ utilitare pentru maparea coordonatelor pentru a randa suprapuneri vizuale și monitorizarea evenimentelor pentru a urmări stările de înregistrare.
Features
- Camera Integrations - Provides comprehensive reference implementations for integrating Android camera hardware to capture photos and videos.
- Real-Time Object Detection - Provides reference implementations for identifying and tracking objects within live camera streams using machine learning.
- Real-Time Frame Processors - Implements components that intercept live camera frames to perform real-time detection and analysis using machine learning models.
- Mobile Vision Implementations - Provides sample code for analyzing live camera frames using ML models for object detection and QR code scanning.
- Video Encoders - Streams raw camera frames into a media encoder to produce compressed video files for local storage.
- Real-Time Model Inference on Frames - Processes live camera frames for real-time object detection, QR code scanning, and machine learning inference.
- Camera API Implementations - Provides architectural best practices and utility tools to reduce boilerplate when implementing Android camera features.
- Camera2 API References - Provides examples for utilizing the low-level Camera2 API to control fine-grained hardware settings and manual image capture.
- CameraX API Implementations - Provides code samples for using the Jetpack CameraX library to build photo and video capture features.
- Video Profile Configuration - Sets the dimensions, frame rate, and color format based on the hardware capabilities of the device.
- Image Capture - Captures still images in standard or raw formats to preserve unprocessed sensor data.
- Camera and Video Capture - Captures video frames using repeating requests and encodes them into a standard video file.
- Android Lifecycle Management - Uses Android-specific lifecycle-aware components to automate the opening and closing of camera hardware resources.
- Camera Preview Embeddings - Renders a real-time camera feed to a view with options for stabilization and portrait filters.
- Android Camera API Examples - Offers a comprehensive set of reference implementations demonstrating best practices for Android camera API integration.
- Bounding Box Visualizers - Includes utilities for overlaying detection coordinates as bounding boxes onto the live camera preview.
- Camera QR Code Scanners - Detects QR codes within a camera stream and extracts encoded data to trigger specific actions.
- Hardware Vendor Abstractions - Provides a standardized interface to access manufacturer-specific hardware processing pipelines for bokeh and night mode.
- Local File Storage - Records video streams to a local file or storage based on a specified quality selector.
- Media Session Recording Controls - Controls the video recording process by starting, pausing, and stopping the capture session.
- Concurrent Capture Sessions - Manages a single hardware session that simultaneously routes data to a screen preview and a file recorder.
- HDR Viewfinder Rendering - Composites alternating short and long exposure frames in real time to produce high-dynamic-range previews.
- High-Performance Video Capture - Implements high-speed slow-motion recording and high-dynamic-range video capture using Android hardware.
- High-Frame-Rate Capture - Provides reference guides for recording high-frame-rate video sessions to enable slow-motion playback.
- HDR Video Capture - Demonstrates the capture of high dynamic range video and the rendering of real-time HDR viewfinders.
- High Frame Rate Recording - Records high-speed video within a constrained capture session to create smooth slow-motion playback.
- Exposure Compositing - Merges short and long exposure frames in real time to create a high-dynamic-range viewfinder.
- Screen Space Coordinate Mappings - Translates raw camera sensor coordinates into screen pixel coordinates to render visual bounding boxes over a live preview.
- Manufacturer Hardware Extensions - Demonstrates how to use manufacturer-specific extensions to apply professional effects such as bokeh, night mode, and HDR.
- Hardware Extension Effects - Applies manufacturer-specific enhancements like Bokeh, HDR, or Night mode to still image captures.
- Enhanced Image Captures - Captures enhanced still images by leveraging hardware-specific camera extensions through a system interface.
- Mobile Video Recording - Records high-dynamic-range video when the hardware supports the capability.
- Repeating Capture Loops - Issues continuous capture requests to the camera hardware to maintain a steady stream of frames for preview and recording.
- Frame Memory Buffers - Implements buffers that maintain video frames to facilitate real-time machine learning inference and QR scanning.
