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64 lines
2.1 KiB
64 lines
2.1 KiB
import asyncio
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from datetime import datetime
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from asyncio_dvrip import DVRIPCam
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from nvr_types import File as NvrFile
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from nvr_types import list_local_files
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from nvr_types import PRIMARY_STREAM, SECONDARY_STREAM
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from nvr_types import H264
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START = "2024-08-04 6:22:34"
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END = "2024-08-04 23:23:09"
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CHANNEL = 0
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def date_today(begin = True):
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if begin:
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return datetime.now().strftime("%Y-%m-%d 00:00:00")
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else:
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return datetime.now().strftime("%Y-%m-%d 23:59:59")
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class NVR:
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def __init__(self, client, loop) -> None:
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self.client:DVRIPCam = client
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self.loop = loop
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async def login(self):
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await self.client.login(self.loop)
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def logout(self):
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self.client.close()
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async def channels(self):
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return await self.client.get_command("ChannelTitle", 1048)
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async def files(self, channel, start = None, end = None, ftype = H264, stype = SECONDARY_STREAM, json = False):
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if not start:
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start = date_today()
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if not end:
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end = date_today(False)
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print("Search files", start, end)
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for raw_file in await list_local_files(self.client, startTime=start, endTime=end, filetype=ftype, channel=channel, streamType=stype):
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if json:
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yield NvrFile(raw_file, channel, stype).json
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else:
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yield NvrFile(raw_file, channel, stype)
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async def stream_file(self, file: NvrFile) -> bytes:
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len_data = await file.generate_first_bytes(self.client)
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print("len data =",len_data)
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if (len_data is None):
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yield b""
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else:
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async for chunk in file.get_file_stream(self.client, len_data):
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if (chunk == None):
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print("end of file")
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break
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yield chunk
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async def save_file(self, file:NvrFile, savePath = "out.unknown"):
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downloaded_bytes = 0
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with open(savePath, "wb") as f:
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async for byte in file.generate_bytes(self.client):
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f.write(byte)
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downloaded_bytes += len(byte)
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print("\r", downloaded_bytes, "/", file.size)
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