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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| import scrypted_sdk | ||
| from typing import Any | ||
| from thread import to_thread | ||
| import io | ||
|
|
||
| try: | ||
| from PIL import Image | ||
| except: | ||
| # Image = None | ||
| pass | ||
|
|
||
| class PILImage(scrypted_sdk.VideoFrame): | ||
| def __init__(self, pilImage: Image.Image) -> None: | ||
| super().__init__() | ||
| self.pilImage = pilImage | ||
| self.width = pilImage.width | ||
| self.height = pilImage.height | ||
|
|
||
| async def toBuffer(self, options: scrypted_sdk.ImageOptions = None) -> bytearray: | ||
| pilImage: PILImage = await self.toPILImage(options) | ||
|
|
||
| if not options or not options.get('format', None): | ||
| def format(): | ||
| bytesArray = io.BytesIO() | ||
| pilImage.pilImage.save(bytesArray, format='JPEG') | ||
| return bytesArray.getvalue() | ||
| return await to_thread(format) | ||
| elif options['format'] == 'rgb': | ||
| def format(): | ||
| rgb = pilImage.pilImage | ||
| if rgb.format == 'RGBA': | ||
| rgb = rgb.convert('RGB') | ||
| return rgb.tobytes() | ||
| return await to_thread(format) | ||
|
|
||
| return await to_thread(lambda: pilImage.pilImage.write_to_buffer('.' + options['format'])) | ||
|
|
||
| async def toPILImage(self, options: scrypted_sdk.ImageOptions = None): | ||
| return await to_thread(lambda: toPILImage(self, options)) | ||
|
|
||
| async def toImage(self, options: scrypted_sdk.ImageOptions = None) -> Any: | ||
| if options and options.get('format', None): | ||
| raise Exception('format can only be used with toBuffer') | ||
| newPILImage = await self.toPILImage(options) | ||
| return await createPILMediaObject(newPILImage) | ||
|
|
||
| def toPILImage(pilImageWrapper: PILImage, options: scrypted_sdk.ImageOptions = None) -> PILImage: | ||
| pilImage = pilImageWrapper.pilImage | ||
| if not pilImage: | ||
| raise Exception('Video Frame has been invalidated') | ||
| options = options or {} | ||
| crop = options.get('crop') | ||
| if crop: | ||
| pilImage = pilImage.crop((int(crop['left']), int(crop['top']), int(crop['left']) + int(crop['width']), int(crop['top']) + int(crop['height']))) | ||
|
|
||
| resize = options.get('resize') | ||
| if resize: | ||
| width = resize.get('width') | ||
| if width: | ||
| xscale = resize['width'] / pilImage.width | ||
| height = pilImage.height * xscale | ||
|
|
||
| height = resize.get('height') | ||
| if height: | ||
| yscale = resize['height'] / pilImage.height | ||
| if not width: | ||
| width = pilImage.width * yscale | ||
|
|
||
| pilImage = pilImage.resize((width, height), resample=Image.Resampling.BILINEAR) | ||
|
|
||
| return PILImage(pilImage) | ||
|
|
||
| async def createPILMediaObject(image: PILImage): | ||
| ret = await scrypted_sdk.mediaManager.createMediaObject(image, scrypted_sdk.ScryptedMimeTypes.Image.value, { | ||
| 'width': image.width, | ||
| 'height': image.height, | ||
| 'toBuffer': lambda options = None: image.toBuffer(options), | ||
| 'toImage': lambda options = None: image.toImage(options), | ||
| }) | ||
| return ret | ||
|
|
||
| class ImageReader(scrypted_sdk.ScryptedDeviceBase, scrypted_sdk.BufferConverter): | ||
| def __init__(self, nativeId: str): | ||
| super().__init__(nativeId) | ||
|
|
||
| self.fromMimeType = 'image/*' | ||
| self.toMimeType = scrypted_sdk.ScryptedMimeTypes.Image.value | ||
|
|
||
| async def convert(self, data: Any, fromMimeType: str, toMimeType: str, options: scrypted_sdk.MediaObjectOptions = None) -> Any: | ||
| pil = Image.open(io.BytesIO(data)) | ||
| return await createPILMediaObject(PILImage(pil)) | ||
|
|
||
| class ImageWriter(scrypted_sdk.ScryptedDeviceBase, scrypted_sdk.BufferConverter): | ||
| def __init__(self, nativeId: str): | ||
| super().__init__(nativeId) | ||
|
|
||
| self.fromMimeType = scrypted_sdk.ScryptedMimeTypes.Image.value | ||
| self.toMimeType = 'image/*' | ||
|
|
||
| async def convert(self, data: scrypted_sdk.VideoFrame, fromMimeType: str, toMimeType: str, options: scrypted_sdk.MediaObjectOptions = None) -> Any: | ||
| return await data.toBuffer({ | ||
| format: 'jpg', | ||
| }) | ||
|
|
||
| def new_from_memory(data, width: int, height: int, bands: int): | ||
| data = bytes(data) | ||
| if bands == 4: | ||
| return Image.frombuffer('RGBA', (width, height), data) | ||
| if bands == 3: | ||
| return Image.frombuffer('RGB', (width, height), data) | ||
| if bands == 1: | ||
| return Image.frombuffer('L', (width, height), data) | ||
| raise Exception('cant handle bands') |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| import asyncio | ||
| from typing import Any | ||
| import concurrent.futures | ||
|
|
||
| # vips is already multithreaded, but needs to be kicked off the python asyncio thread. | ||
| toThreadExecutor = concurrent.futures.ThreadPoolExecutor(max_workers=2, thread_name_prefix="image") | ||
|
|
||
| async def to_thread(f): | ||
| loop = asyncio.get_running_loop() | ||
| return await loop.run_in_executor(toThreadExecutor, f) |
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