update to v10.4.20

Author: JaneYe-Dynamsoft

Legal.txt

@@ -1,8 +1,8 @@
-# Dynamsoft Barcode Reader samples for Python edition
+# Dynamsoft Barcode Reader Samples for Python Edition
 
-[![Current version number](https://img.shields.io/pypi/v/dbr?color=orange)](https://pypi.org/project/dbr/)
-[![Supported Python versions](https://img.shields.io/badge/python-3.6%20%7C%203.7%20%7C%203.8%20%7C%203.9%20%7C%203.10%20%7C%203.11%20%7C%203.12-blue)](https://www.python.org/downloads/)
-[![PyPI downloads](https://img.shields.io/pypi/dm/dbr)](https://pypistats.org/packages/dbr)
+[![Current version number](https://img.shields.io/pypi/v/dynamsoft_barcode_reader_bundle?color=orange)](https://pypi.org/project/dynamsoft_barcode_reader_bundle/)
+[![Supported Python versions](https://img.shields.io/badge/python-3.8%20%7C%203.9%20%7C%203.10%20%7C%203.11%20%7C%203.12-blue)](https://www.python.org/downloads/)
+[![PyPI downloads](https://img.shields.io/pypi/dm/dynamsoft_barcode_reader_bundle)](https://pypistats.org/packages/dynamsoft_barcode_reader_bundle)
 
 ![Dynamsoft](https://dynamsoft.github.io/styleguide/assets/images/icons/dynamsoft_logos/dynamsoft_logo_original.png "Dynamsoft")  
 
@@ -14,55 +14,45 @@ This repository contains multiple samples that demonstrate how to use the [Dynam
 
 ### Supported Platforms
 - Windows x64
-- Linux (x64, ARM32, ARM64)
+- Linux (x64, ARM64)
 - macOS (10.15+)
 
 ### Supported Python Versions
 
-- Python 3.6
-- Python 3.7
-- Python 3.8
-- Python 3.9
-- Python 3.10
-- Python 3.11
 - Python 3.12
+- Python 3.11
+- Python 3.10
+- Python 3.9
+- Python 3.8
 
 ## Installation
 
 ```
-pip install dbr
+pip install dynamsoft_barcode_reader_bundle
 ```
 
 or 
 
 ```
-pip3 install dbr
+pip3 install dynamsoft_barcode_reader_bundle
 ```
 
 ## Samples
 
 | Sample Name | Description |
 | ----------- | ----------- |
-| [`hello-world`](samples/hello-world.py) | Shows the simplest way to recognize barcodes from images in Python using Dynamsoft Barcode Reader SDK. |
-| [`general-settings`](samples/general-settings.py) | Shows how to adjust general scan settings, e.g., barcode format, barcode count, scan region. | 
-| [`image-decoding`](samples/image-decoding.py) | Shows how to decode images in various formats, e.g., file bytes, opencv image, raw image  buffer. | 
-| [`video-decoding`](samples/video-decoding.py) | Shows how to decode barcodes from a video from a file or camera. | 
-| [`video-decoding-for-picamera`](samples/video-decoding-for-picamera.py) | Shows how to scan barcodes from videos from a Raspberry Pi camera (PiCamera). | 
-| [`batch-decode`](samples/performance/batch-decode.py) | Shows how to batch decode image files from a specified folder. |
-| [`speed-first-settings`](samples/performance/speed-first-settings.py) | Shows how to configure the scan settings for best barcode reading speed. |
-| [`read-rate-first-settings`](samples/performance/read-rate-first-settings.py) | Shows how to configure the scan settings to read as many barcodes as possible at one time. Recommended when decoding multiple barcodes from a single image. |
-| [`accuracy-first-settings`](samples/performance/accuracy-first-settings.py) | Shows how to configure the scan settings for best barcode reading accuracy. |
-| [`read-dpm-barcode`](samples/use-case/read-dpm-barcode.py) | Shows how to read DPM (Direct Part Mark) barcodes. |
+| [`ReadAnImage`](Samples/read_an_image.py) | Shows the simplest way to read barcodes from an image file and output barcode format and text. |
+| [`ReadMultipleImages`](Samples/read_multiple_images.py) | Shows the simplest way to read barcodes from directory with image files and output barcode format and text. | 
 
 ## Documentation
 
 https://www.dynamsoft.com/barcode-reader/docs/server/programming/python/?ver=latest&utm_source=samples
 
 ## License
 
-The barcode reader library requires a license to work. You can use the API `init_license` to initialize the license key and activate the SDK.
+The library requires a license to work, you use the API `LicenseManager.init_license` to initialize license key and activate the SDK.
 
-These samples use a free public trial license which requires a network connection to function. You can request a 30-day free trial license key from <a href="https://www.dynamsoft.com/customer/license/trialLicense?architecture=dcv&product=dbr&utm_source=samples&package=python" target="_blank">Customer Portal</a> which works offline.
+These samples use a free public trial license which require network connection to function. You can request a 30-day free trial license via the <a href="https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&utm_source=github&package=python" target="_blank">Request a Trial License</a> link which works offline.
 
 ## Contact Us
 

README.md

@@ -0,0 +1,26 @@
+from dynamsoft_barcode_reader_bundle import *
+import os
+
+if __name__ == '__main__':
+    # Initialize license.
+    # You can request and extend a trial license from https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&utm_source=samples&package=python
+    # The string 'DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9' here is a free public trial license. Note that network connection is required for this license to work.
+    errorCode, errorMsg = LicenseManager.init_license("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9")
+    if errorCode != EnumErrorCode.EC_OK and errorCode != EnumErrorCode.EC_LICENSE_CACHE_USED:
+        print("License initialization failed: ErrorCode:", errorCode, ", ErrorString:", errorMsg)
+    else:
+        cvr = CaptureVisionRouter()
+        result = cvr.capture("../Images/GeneralBarcodes.png", EnumPresetTemplate.PT_READ_BARCODES.value)
+        if result.get_error_code() != EnumErrorCode.EC_OK:
+            print("Error:", result.get_error_code(), result.get_error_string())
+        barcode_result = result.get_decoded_barcodes_result()
+        if barcode_result is None or barcode_result.get_items() == 0:
+            print("No barcode detected.")
+        else:
+            items = barcode_result.get_items()
+            print("Decoded", len(items), "barcodes.")
+            for index,item in enumerate(items):
+                print("Result", index+1)
+                print("Barcode Format:", item.get_format_string())
+                print("Barcode Text:", item.get_text())
+    input("Press Enter to quit...")

Samples/read_an_image.py

@@ -0,0 +1,53 @@
+from dynamsoft_barcode_reader_bundle import *
+import os
+
+class MyCapturedResultReceiver(CapturedResultReceiver):
+
+    def __init__(self) -> None:
+        super().__init__()
+    def on_decoded_barcodes_received(self, result: "DecodedBarcodesResult") -> None:
+        tag = result.get_original_image_tag()
+        if isinstance(tag, FileImageTag):
+            print("File:", tag.get_file_path())
+        if result.get_error_code() != EnumErrorCode.EC_OK:
+            print("Error:", result.get_error_string())        
+        else:
+            items = result.get_items()
+            print("Detected", len(items), "barcodes.")
+            for index, item in enumerate(items):
+                print("Result", index+1)
+                print("Barcode Format:", item.get_format_string())
+                print("Barcode Text:", item.get_text())
+
+class MyImageSourceStateListener(ImageSourceStateListener):
+    def __init__(self, cvr:CaptureVisionRouter) -> None:
+        super().__init__()
+        self.cvr = cvr
+    def on_image_source_state_received(self, state: int) -> None:
+        if state == EnumImageSourceState.ISS_EXHAUSTED:
+            if self.cvr != None:
+                self.cvr.stop_capturing()
+if __name__ == '__main__':
+    # Initialize license.
+    # You can request and extend a trial license from https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&utm_source=samples&package=python
+    # The string 'DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9' here is a free public trial license. Note that network connection is required for this license to work.
+    errorCode, errorMsg = LicenseManager.init_license("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9")
+    if errorCode != EnumErrorCode.EC_OK and errorCode != EnumErrorCode.EC_LICENSE_CACHE_USED:
+        print("License initialization failed: ErrorCode:", errorCode, ", ErrorString:", errorMsg)
+    else:
+        cvr = CaptureVisionRouter()
+        
+        fetcher = DirectoryFetcher()
+        fetcher.set_directory("../Images")
+        cvr.set_input(fetcher)
+
+        receiver = MyCapturedResultReceiver()
+        cvr.add_result_receiver(receiver)
+
+        listener = MyImageSourceStateListener(cvr)
+        cvr.add_image_source_state_listener(listener)
+
+        errorCode, errorMsg = cvr.start_capturing("", True)
+        if errorCode != EnumErrorCode.EC_OK:
+            print("error:", errorMsg)
+    input("Press Enter to quit...")