mirror of https://github.com/OpenIPC/python-dvr
Browse Source
- add get_channel_titles() - add get_channel_statuses() - change send_custom() and get_file(): get the first chunk size from netip header instead of hardcoded - change list_local_files(): allow list files for any channel, review error processing logic Add NVR class Add NVRVideoDownloader application which allows downloading video-files from NVRpull/1/head
vklimk
1 year ago
4 changed files with 214 additions and 24 deletions
@ -0,0 +1,94 @@ |
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from time import sleep, monotonic |
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from dvrip import DVRIPCam, SomethingIsWrongWithCamera |
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from pathlib import Path |
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import logging |
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class NVR: |
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nvr = None |
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logger = None |
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def __init__(self, host_ip, user, password, logger): |
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self.logger = logger |
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self.nvr = DVRIPCam( |
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host_ip, |
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user=user, |
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password=password, |
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) |
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if logger.level <= logging.DEBUG: |
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self.nvr.debug() |
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def login(self): |
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try: |
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self.logger.info(f"Connecting to NVR...") |
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self.nvr.login() |
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self.logger.info("Successfuly connected to NVR.") |
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return |
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except SomethingIsWrongWithCamera: |
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self.logger.error("Can't connect to NVR") |
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self.nvr.close() |
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def logout(self): |
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self.nvr.close() |
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def get_channel_statuses(self): |
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channel_statuses = self.nvr.get_channel_statuses() |
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if 'Ret' in channel_statuses: |
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return None |
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channel_titles = self.nvr.get_channel_titles() |
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if 'Ret' in channel_titles: |
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return None |
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for i in range(min(len(channel_statuses), len(channel_titles))): |
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channel_statuses[i]['Title'] = channel_titles[i] |
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channel_statuses[i]['Channel'] = i |
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return [c for c in channel_statuses if c['Status'] != ''] |
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def get_local_files(self, channel, start, end, filetype): |
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return self.nvr.list_local_files(start, end, filetype, channel) |
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def generateTargetFileName(self, filename): |
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# My NVR's filename example: /idea0/2023-11-19/002/05.38.58-05.39.34[M][@69f17][0].h264 |
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# You should check file names in your NVR and review the transformation |
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filenameSplit = filename.replace("][", "/").replace("[", "/").replace("]", "/").split("/") |
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return f"{filenameSplit[3]}_{filenameSplit[2]}_{filenameSplit[4]}{filenameSplit[-1]}" |
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def save_files(self, download_dir, files): |
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self.logger.info(f"Files downloading: start") |
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size_to_download = sum(int(f['FileLength'], 0) for f in files) |
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for file in files: |
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target_file_name = self.generateTargetFileName(file["FileName"]) |
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target_file_path = f"{download_dir}/{target_file_name}" |
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size = int(file['FileLength'], 0) |
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size_to_download -= size |
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if Path(f"{target_file_path}").is_file(): |
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self.logger.info(f" {target_file_name} file already exists, skipping download") |
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continue |
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self.logger.info(f" {target_file_name} [{size/1024:.1f} MBytes] downloading...") |
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time_dl = monotonic() |
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self.nvr.download_file( |
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file["BeginTime"], file["EndTime"], file["FileName"], target_file_path |
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) |
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time_dl = monotonic() - time_dl |
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speed = size / time_dl |
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self.logger.info(f" Done [{speed:.1f} KByte/s] {size_to_download/1024:.1f} MBytes more to download") |
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self.logger.info(f"Files downloading: done") |
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def list_files(self, files): |
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self.logger.info(f"Files listing: start") |
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for file in files: |
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target_file_name = self.generateTargetFileName(file["FileName"]) |
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size = int(file['FileLength'], 0) |
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self.logger.info(f" {target_file_name} [{size/1024:.1f} MBytes]") |
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self.logger.info(f"Files listing: end") |
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@ -0,0 +1,11 @@ |
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{ |
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"host_ip": "10.0.0.8", |
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"user": "admin", |
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"password": "mypassword", |
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"channel": 0, |
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"download_dir": "./download", |
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"start": "2023-11-19 6:22:34", |
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"end": "2023-11-19 6:23:09", |
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"just_list_files": false, |
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"log_level": "INFO" |
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} |
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@ -0,0 +1,89 @@ |
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from pathlib import Path |
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import os |
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import json |
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import logging |
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from collections import namedtuple |
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from NVR import NVR |
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def init_logger(log_level): |
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logger = logging.getLogger(__name__) |
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logger.setLevel(log_level) |
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ch = logging.StreamHandler() |
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formatter = logging.Formatter("%(asctime)s [%(levelname)s] %(message)s") |
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ch.setFormatter(formatter) |
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logger.addHandler(ch) |
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return logger |
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def load_config(): |
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def config_decoder(config_dict): |
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return namedtuple("X", config_dict.keys())(*config_dict.values()) |
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config_path = os.environ.get("NVRVIDEODOWNLOADER_CFG") |
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if config_path is None or not Path(config_path).exists(): |
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config_path = "NVRVideoDownloader.json" |
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if Path(config_path).exists(): |
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with open(config_path, "r") as file: |
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return json.loads(file.read(), object_hook=config_decoder) |
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return { |
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"host_ip": os.environ.get("IP_ADDRESS"), |
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"user": os.environ.get("USER"), |
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"password": os.environ.get("PASSWORD"), |
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"channel": os.environ.get("CHANNEL"), |
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"download_dir": os.environ.get("DOWNLOAD_DIR"), |
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"start": os.environ.get("START"), |
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"end": os.environ.get("END"), |
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"just_list_files": os.environ.get("DUMP_LOCAL_FILES").lower() in ["true", "1", "y", "yes"], |
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"log_level": "INFO" |
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} |
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def main(): |
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config = load_config() |
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logger = init_logger(config.log_level) |
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channel = config.channel; |
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start = config.start |
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end = config.end |
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just_list_files = config.just_list_files; |
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nvr = NVR(config.host_ip, config.user, config.password, logger) |
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try: |
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nvr.login() |
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channel_statuses = nvr.get_channel_statuses() |
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if channel_statuses: |
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channel_statuses_short = [{f"{c['Channel']}:{c['Title']}({c['ChnName']})"} |
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for c in channel_statuses if c['Status'] != 'NoConfig'] |
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logger.info(f"Configured channels in NVR: {channel_statuses_short}") |
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videos = nvr.get_local_files(channel, start, end, "h264") |
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if videos: |
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size = sum(int(f['FileLength'], 0) for f in videos) |
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logger.info(f"Video files found: {len(videos)}. Total size: {size/1024:.1f}M") |
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Path(config.download_dir).parent.mkdir( |
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parents=True, exist_ok=True |
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) |
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if just_list_files: |
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nvr.list_files(videos) |
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else: |
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nvr.save_files(config.download_dir, videos) |
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else: |
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logger.info(f"No video files found") |
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nvr.logout() |
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except ConnectionRefusedError: |
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logger.error(f"Connection can't be established or got disconnected") |
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except TypeError as e: |
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print(e) |
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logger.error(f"Error while downloading a file") |
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except KeyError: |
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logger.error(f"Error while getting the file list") |
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if __name__ == "__main__": |
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main() |
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