media: refactor sound_node, introduce camera_node

42 files changed, 866 insertions, 428 deletions

diff --git a/doc/camera_node.md b/doc/camera_node.md
new file mode 100644
index 0000000..5f2d8d8
--- /dev/null
+++ b/doc/camera_node.md
@@ -0,0 +1,5 @@
+## Configuration
+
+```
+
+```
\ No newline at end of file
diff --git a/doc/sensors_bot.md b/doc/sensors_bot.md
index 9f1c008..c6dba42 100644
--- a/doc/sensors_bot.md
+++ b/doc/sensors_bot.md
@@ -30,4 +30,10 @@ label_en = "There"
 
 [logging]
 verbose = false
+```
+
+## Dependencies
+
+```
+apt install python3-matplotlib
 ```
\ No newline at end of file
diff --git a/doc/sound_bot.md b/doc/sound_bot.md
index f273e7c..93241be 100644
--- a/doc/sound_bot.md
+++ b/doc/sound_bot.md
@@ -2,35 +2,73 @@
 
 ## Configuration example
 
-```toml
-[bot]
-token = "..."
-users = [1, 2]
-manual_record_allowlist = [ 1 ]
-notify_users = [ 1, 2 ]
+```yaml
+bot:
+  token: "..."
+  users: [1, 2]
+  manual_record_allowlist: [ 1 ]
+  notify_users: [ 1, 2 ]
+    
+  record_intervals: [15, 30, 60, 180, 300, 600]
+  guard_server: "1.2.3.4:8311"
+  
+api:
+  token: "..."
+  host: "..."
 
-record_intervals = [15, 30, 60, 180, 300, 600]
-guard_server = "1.2.3.4:8311"
+nodes:
+  name1:
+    addr: "1.2.3.4:8313"
+    label: 
+      ru: "название 1"
+      en: "name 1"
+  name2:
+    addr: "1.2.3.5:8313"
+    label:
+      ru: "название2"
+      en: "name 2"
 
-[api]
-token = "..."
-host = "..."
+sound_sensors:
+  name1: 
+    ru: "название 1"
+    en: "name 1"
+  name2:
+    ru: "название 2"
+    en: "name 2"
 
-[nodes]
-name1.addr = '1.2.3.4:8313'
-name1.label = { ru="название 1", en="name 1" }
+cameras:
+  cam1:
+    label:
+      ru: "название 1"
+      en: "name 1"
+    type: esp32
+    addr: "1.2.3.4:80"
+    settings:
+      framesize: 9
+      vflip: true
+      hmirror: true
+      lenc: true
+      wpc: true
+      bpc: false
+      raw_gma: false
+      agc: true
+      gainceiling: 5
+      quality: 10
+      awb_gain: false
+      awb: true
+      aec_dsp: true
+      aec: true
+    flash: true
 
-name2.addr = '1.2.3.5:8313'
-name2.label = { ru="название2", en="name 2" }
+logging:
+  verbose: false
+  default_fmt: true
 
-[sound_sensors]
-name1 = { ru="название 1", en="name 1" }
-name2 = { ru="название 2", en="name 2" }
+```
 
-[cameras]
-name1 = { ru="название 1", en="name 1", type="esp32", addr="1.2.3.4:80", settings = {framesize=9, vflip=true, hmirror=true, lenc=true, wpc=true, bpc=false, raw_gma=false, agc=true, gainceiling=5, quality=10, awb_gain=false, awb=true, aec_dsp=true, aec=true} }
 
-[logging]
-verbose = false
-default_fmt = true
+## Dependencies
+
+```
+apt install python3-pil
 ```
\ No newline at end of file
diff --git a/doc/sound_sensor_server.md b/doc/sound_sensor_server.md
new file mode 100644
index 0000000..9543562
--- /dev/null
+++ b/doc/sound_sensor_server.md
@@ -0,0 +1,33 @@
+## Configuration
+
+```
+[server]
+listen = "0.0.0.0:8311"
+guard_control = true                    
+guard_recording_default = false  
+
+[sensor_to_sound_nodes_relations]
+big_house = ['bh1', 'bh2']
+john = ['john']
+
+[sensor_to_camera_nodes_relations]
+big_house = ['bh']
+john = ['john']
+
+[sound_nodes]
+bh1 = { addr = '192.168.1.2:8313', durations = [7, 30] }
+bh2 = { addr = '192.168.1.3:8313', durations = [10, 60] }
+john = { addr = '192.168.1.4:8313', durations = [10, 60] }
+
+[camera_nodes]
+bh = { addr = '192.168.1.2:8314', durations = [7, 30] }
+john = { addr = '192.168.1.4:8314', durations = [10, 60] }
+
+[api]
+token = "..."
+host = "..."
+
+[logging]
+verbose = false
+default_fmt = true
+```
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 9782e86..53c3cd0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,7 @@ pytz~=2021.3
 PyYAML~=6.0
 apscheduler~=3.9.1
 psutil~=5.9.1
+aioshutil~=1.1
 
 # following can be installed from debian repositories
 # matplotlib~=3.5.0
diff --git a/src/camera_node.py b/src/camera_node.py
new file mode 100755
index 0000000..206361a
--- /dev/null
+++ b/src/camera_node.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+import asyncio
+import time
+
+from home.config import config
+from home.media import MediaNodeServer, CameraRecordStorage, CameraRecorder
+from home.camera import CameraType, esp32
+from home.util import parse_addr, Addr
+from home import http
+
+
+# Implements HTTP API for a camera.
+# ---------------------------------
+
+class ESP32CameraNodeServer(MediaNodeServer):
+    def __init__(self, web_addr: Addr, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.last_settings_sync = 0
+
+        self.web = esp32.WebClient(web_addr)
+        self.get('/capture/', self.capture)
+
+    async def capture(self, req: http.Request):
+        await self.sync_settings_if_needed()
+
+        try:
+            with_flash = int(req.query['with_flash'])
+        except KeyError:
+            with_flash = 0
+
+        if with_flash:
+            await self.web.setflash(True)
+            await asyncio.sleep(0.2)
+
+        bytes = (await self.web.capture()).read()
+
+        if with_flash:
+            await self.web.setflash(False)
+
+        res = http.StreamResponse()
+        res.content_type = 'image/jpeg'
+        res.content_length = len(bytes)
+
+        await res.prepare(req)
+        await res.write(bytes)
+        await res.write_eof()
+
+        return res
+
+    async def do_record(self, request: http.Request):
+        await self.sync_settings_if_needed()
+
+        # sync settings
+        return super().do_record(request)
+
+    async def sync_settings_if_needed(self):
+        if self.last_settings_sync != 0 and time.time() - self.last_settings_sync < 300:
+            return
+        changed = await self.web.syncsettings(config['camera']['settings'])
+        if changed:
+            self.logger.debug('sync_settings_if_needed: some settings were changed, sleeping for 0.4 sec')
+            await asyncio.sleep(0.4)
+        self.last_settings_sync = time.time()
+
+
+if __name__ == '__main__':
+    config.load('camera_node')
+
+    storage = CameraRecordStorage(config['node']['storage'])
+
+    recorder_kwargs = {}
+    camera_type = CameraType(config['camera']['type'])
+    if camera_type == CameraType.ESP32:
+        recorder_kwargs['stream_addr'] = parse_addr(config['camera']['stream_addr'])
+    else:
+        raise RuntimeError(f'unsupported camera type {camera_type}')
+
+    recorder = CameraRecorder(storage=storage,
+                              camera_type=camera_type,
+                              **recorder_kwargs)
+    recorder.start_thread()
+
+    server = ESP32CameraNodeServer(
+        recorder=recorder,
+        storage=storage,
+        web_addr=parse_addr(config['camera']['web_addr']),
+        addr=parse_addr(config['node']['listen']))
+    server.run()
diff --git a/src/esp32_capture.py b/src/esp32_capture.py
new file mode 100755
index 0000000..4a9ce10
--- /dev/null
+++ b/src/esp32_capture.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+import asyncio
+import logging
+import os.path
+
+from argparse import ArgumentParser
+from home.camera.esp32 import WebClient
+from home.util import parse_addr, Addr
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from datetime import datetime
+from typing import Optional
+
+logger = logging.getLogger(__name__)
+cam: Optional[WebClient] = None
+
+
+class ESP32Capture:
+    def __init__(self, addr: Addr, interval: float, output_directory: str):
+        self.logger = logging.getLogger(self.__class__.__name__)
+        self.client = WebClient(addr)
+        self.output_directory = output_directory
+        self.interval = interval
+
+        self.scheduler = AsyncIOScheduler()
+        self.scheduler.add_job(self.capture, 'interval', seconds=arg.interval)
+        self.scheduler.start()
+
+    async def capture(self):
+        self.logger.debug('capture: start')
+        now = datetime.now()
+        filename = os.path.join(
+            self.output_directory,
+            now.strftime('%Y-%m-%d-%H:%M:%S.%f.jpg')
+        )
+        if not await self.client.capture(filename):
+            self.logger.error('failed to capture')
+        self.logger.debug('capture: done')
+
+
+if __name__ == '__main__':
+    parser = ArgumentParser()
+    parser.add_argument('--addr', type=str, required=True)
+    parser.add_argument('--output-directory', type=str, required=True)
+    parser.add_argument('--interval', type=float, default=0.5)
+    parser.add_argument('--verbose', action='store_true')
+    arg = parser.parse_args()
+
+    if arg.verbose:
+        logging.basicConfig(level=logging.DEBUG)
+
+    loop = asyncio.get_event_loop()
+
+    ESP32Capture(parse_addr(arg.addr), arg.interval, arg.output_directory)
+    try:
+        loop.run_forever()
+    except KeyboardInterrupt:
+        pass
diff --git a/src/home/api/web_api_client.py b/src/home/api/web_api_client.py
index e3b0988..34d080c 100644
--- a/src/home/api/web_api_client.py
+++ b/src/home/api/web_api_client.py
@@ -13,7 +13,7 @@ from .errors import ApiResponseError
 from .types import *
 from ..config import config
 from ..util import stringify
-from ..sound import RecordFile, SoundNodeClient
+from ..media import RecordFile, MediaNodeClient
 
 logger = logging.getLogger(__name__)
 
@@ -103,7 +103,7 @@ class WebAPIClient:
     def recordings_list(self, extended=False, as_objects=False) -> Union[list[str], list[dict], list[RecordFile]]:
         files = self._get('recordings/list/', {'extended': int(extended)})['data']
         if as_objects:
-            return SoundNodeClient.record_list_from_serialized(files)
+            return MediaNodeClient.record_list_from_serialized(files)
         return files
 
     def _process_sound_sensor_hits_data(self, data: list[dict]) -> list[dict]:
diff --git a/src/test/__init__.py b/src/home/audio/__init__.py
index e69de29..e69de29 100644
--- a/src/test/__init__.py
+++ b/src/home/audio/__init__.py
diff --git a/src/home/sound/amixer.py b/src/home/audio/amixer.py
index 0ab2c64..0ab2c64 100644
--- a/src/home/sound/amixer.py
+++ b/src/home/audio/amixer.py
diff --git a/src/home/camera/__init__.py b/src/home/camera/__init__.py
index e69de29..626930b 100644
--- a/src/home/camera/__init__.py
+++ b/src/home/camera/__init__.py
@@ -0,0 +1 @@
+from .types import CameraType
\ No newline at end of file
diff --git a/src/home/camera/esp32.py b/src/home/camera/esp32.py
index 246022b..fe6de0e 100644
--- a/src/home/camera/esp32.py
+++ b/src/home/camera/esp32.py
@@ -1,10 +1,12 @@
 import logging
-import shutil
 import requests
 import json
+import asyncio
+import aioshutil
 
+from io import BytesIO
+from functools import partial
 from typing import Union, Optional
-from time import sleep
 from enum import Enum
 from ..api.errors import ApiResponseError
 from ..util import Addr
@@ -41,14 +43,15 @@ def _assert_bounds(n: int, min: int, max: int):
 
 
 class WebClient:
-    def __init__(self, addr: Addr):
+    def __init__(self,
+                 addr: Addr):
         self.endpoint = f'http://{addr[0]}:{addr[1]}'
         self.logger = logging.getLogger(self.__class__.__name__)
         self.delay = 0
         self.isfirstrequest = True
 
-    def syncsettings(self, settings) -> bool:
-        status = self.getstatus()
+    async def syncsettings(self, settings) -> bool:
+        status = await self.getstatus()
         self.logger.debug(f'syncsettings: status={status}')
 
         changed_anything = False
@@ -82,7 +85,7 @@ class WebClient:
                 func = getattr(self, f'set{name}')
                 self.logger.debug(f'syncsettings: calling set{name}({value})')
 
-                func(value)
+                await func(value)
 
                 changed_anything = True
             except AttributeError as exc:
@@ -94,99 +97,106 @@ class WebClient:
     def setdelay(self, delay: int):
         self.delay = delay
 
-    def capture(self, save_to: str):
-        self._call('capture', save_to=save_to)
+    async def capture(self, output: Optional[str] = None) -> Union[BytesIO, bool]:
+        kw = {}
+        if output:
+            kw['save_to'] = output
+        else:
+            kw['as_bytes'] = True
+        return await self._call('capture', **kw)
 
-    def getstatus(self):
-        return json.loads(self._call('status'))
+    async def getstatus(self):
+        return json.loads(await self._call('status'))
 
-    def setflash(self, enable: bool):
-        self._control('flash', int(enable))
+    async def setflash(self, enable: bool):
+        await self._control('flash', int(enable))
 
-    def setframesize(self, fs: Union[int, FrameSize]):
+    async def setframesize(self, fs: Union[int, FrameSize]):
         if type(fs) is int:
             fs = FrameSize(fs)
-        self._control('framesize', fs.value)
+        await self._control('framesize', fs.value)
 
-    def sethmirror(self, enable: bool):
-        self._control('hmirror', int(enable))
+    async def sethmirror(self, enable: bool):
+        await self._control('hmirror', int(enable))
 
-    def setvflip(self, enable: bool):
-        self._control('vflip', int(enable))
+    async def setvflip(self, enable: bool):
+        await self._control('vflip', int(enable))
 
-    def setawb(self, enable: bool):
-        self._control('awb', int(enable))
+    async def setawb(self, enable: bool):
+        await self._control('awb', int(enable))
 
-    def setawbgain(self, enable: bool):
-        self._control('awb_gain', int(enable))
+    async def setawbgain(self, enable: bool):
+        await self._control('awb_gain', int(enable))
 
-    def setwbmode(self, mode: WBMode):
-        self._control('wb_mode', mode.value)
+    async def setwbmode(self, mode: WBMode):
+        await self._control('wb_mode', mode.value)
 
-    def setaecsensor(self, enable: bool):
-        self._control('aec', int(enable))
+    async def setaecsensor(self, enable: bool):
+        await self._control('aec', int(enable))
 
-    def setaecdsp(self, enable: bool):
-        self._control('aec2', int(enable))
+    async def setaecdsp(self, enable: bool):
+        await self._control('aec2', int(enable))
 
-    def setagc(self, enable: bool):
-        self._control('agc', int(enable))
+    async def setagc(self, enable: bool):
+        await self._control('agc', int(enable))
 
-    def setagcgain(self, gain: int):
+    async def setagcgain(self, gain: int):
         _assert_bounds(gain, 1, 31)
-        self._control('agc_gain', gain)
+        await self._control('agc_gain', gain)
 
-    def setgainceiling(self, gainceiling: int):
+    async def setgainceiling(self, gainceiling: int):
         _assert_bounds(gainceiling, 2, 128)
-        self._control('gainceiling', gainceiling)
+        await self._control('gainceiling', gainceiling)
 
-    def setbpc(self, enable: bool):
-        self._control('bpc', int(enable))
+    async def setbpc(self, enable: bool):
+        await self._control('bpc', int(enable))
 
-    def setwpc(self, enable: bool):
-        self._control('wpc', int(enable))
+    async def setwpc(self, enable: bool):
+        await self._control('wpc', int(enable))
 
-    def setrawgma(self, enable: bool):
-        self._control('raw_gma', int(enable))
+    async def setrawgma(self, enable: bool):
+        await self._control('raw_gma', int(enable))
 
-    def setlenscorrection(self, enable: bool):
-        self._control('lenc', int(enable))
+    async def setlenscorrection(self, enable: bool):
+        await self._control('lenc', int(enable))
 
-    def setdcw(self, enable: bool):
-        self._control('dcw', int(enable))
+    async def setdcw(self, enable: bool):
+        await self._control('dcw', int(enable))
 
-    def setcolorbar(self, enable: bool):
-        self._control('colorbar', int(enable))
+    async def setcolorbar(self, enable: bool):
+        await self._control('colorbar', int(enable))
 
-    def setquality(self, q: int):
+    async def setquality(self, q: int):
         _assert_bounds(q, 4, 63)
-        self._control('quality', q)
+        await self._control('quality', q)
 
-    def setbrightness(self, brightness: int):
+    async def setbrightness(self, brightness: int):
         _assert_bounds(brightness, -2, -2)
-        self._control('brightness', brightness)
+        await self._control('brightness', brightness)
 
-    def setcontrast(self, contrast: int):
+    async def setcontrast(self, contrast: int):
         _assert_bounds(contrast, -2, 2)
-        self._control('contrast', contrast)
+        await self._control('contrast', contrast)
 
-    def setsaturation(self, saturation: int):
+    async def setsaturation(self, saturation: int):
         _assert_bounds(saturation, -2, 2)
-        self._control('saturation', saturation)
+        await self._control('saturation', saturation)
 
-    def _control(self, var: str, value: Union[int, str]):
-        self._call('control', params={'var': var, 'val': value})
+    async def _control(self, var: str, value: Union[int, str]):
+        return await self._call('control', params={'var': var, 'val': value})
 
-    def _call(self,
-              method: str,
-              params: Optional[dict] = None,
-              save_to: Optional[str] = None):
+    async def _call(self,
+                    method: str,
+                    params: Optional[dict] = None,
+                    save_to: Optional[str] = None,
+                    as_bytes=False) -> Union[str, bool, BytesIO]:
+        loop = asyncio.get_event_loop()
 
         if not self.isfirstrequest and self.delay > 0:
             sleeptime = self.delay / 1000
             self.logger.debug(f'sleeping for {sleeptime}')
 
-            sleep(sleeptime)
+            await asyncio.sleep(sleeptime)
 
         self.isfirstrequest = False
 
@@ -199,14 +209,18 @@ class WebClient:
         if save_to:
             kwargs['stream'] = True
 
-        r = requests.get(url, **kwargs)
+        r = await loop.run_in_executor(None,
+                                       partial(requests.get, url, **kwargs))
         if r.status_code != 200:
             raise ApiResponseError(status_code=r.status_code)
 
+        if as_bytes:
+            return BytesIO(r.content)
+
         if save_to:
             r.raise_for_status()
             with open(save_to, 'wb') as f:
-                shutil.copyfileobj(r.raw, f)
+                await aioshutil.copyfileobj(r.raw, f)
             return True
 
         return r.text
diff --git a/src/home/camera/types.py b/src/home/camera/types.py
new file mode 100644
index 0000000..de59022
--- /dev/null
+++ b/src/home/camera/types.py
@@ -0,0 +1,5 @@
+from enum import Enum
+
+
+class CameraType(Enum):
+    ESP32 = 'esp32'
diff --git a/src/home/http/__init__.py b/src/home/http/__init__.py
index 2597457..963e13c 100644
--- a/src/home/http/__init__.py
+++ b/src/home/http/__init__.py
@@ -1,2 +1,2 @@
 from .http import serve, ok, routes, HTTPServer
-from aiohttp.web import FileResponse, Request
+from aiohttp.web import FileResponse, StreamResponse, Request
\ No newline at end of file
diff --git a/src/home/media/__init__.py b/src/home/media/__init__.py
new file mode 100644
index 0000000..e8268cf
--- /dev/null
+++ b/src/home/media/__init__.py
@@ -0,0 +1,21 @@
+import importlib
+import itertools
+
+__map__ = {
+    'types': ['MediaNodeType'],
+    'record_client': ['SoundRecordClient', 'CameraRecordClient', 'RecordClient'],
+    'node_server': ['MediaNodeServer'],
+    'node_client': ['SoundNodeClient', 'CameraNodeClient', 'MediaNodeClient'],
+    'storage': ['SoundRecordStorage', 'CameraRecordStorage', 'SoundRecordFile', 'CameraRecordFile', 'RecordFile'],
+    'record': ['SoundRecorder', 'CameraRecorder']
+}
+
+__all__ = list(itertools.chain(*__map__.values()))
+
+def __getattr__(name):
+    if name in __all__:
+        for file, names in __map__.items():
+            if name in names:
+                module = importlib.import_module(f'.{file}', __name__)
+                return getattr(module, name)
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
diff --git a/src/home/media/__init__.pyi b/src/home/media/__init__.pyi
new file mode 100644
index 0000000..0e85cde
--- /dev/null
+++ b/src/home/media/__init__.pyi
@@ -0,0 +1,27 @@
+from .types import (
+    MediaNodeType as MediaNodeType
+)
+from .record_client import (
+    SoundRecordClient as SoundRecordClient,
+    CameraRecordClient as CameraRecordClient,
+    RecordClient as RecordClient
+)
+from .node_server import (
+    MediaNodeServer as MediaNodeServer
+)
+from .node_client import (
+    SoundNodeClient as SoundNodeClient,
+    CameraNodeClient as CameraNodeClient,
+    MediaNodeClient as MediaNodeClient
+)
+from .storage import (
+    SoundRecordStorage as SoundRecordStorage,
+    CameraRecordStorage as CameraRecordStorage,
+    SoundRecordFile as SoundRecordFile,
+    CameraRecordFile as CameraRecordFile,
+    RecordFile as RecordFile
+)
+from .record import (
+    SoundRecorder as SoundRecorder,
+    CameraRecorder as CameraRecorder
+)
\ No newline at end of file
diff --git a/src/home/sound/node_client.py b/src/home/media/node_client.py
index 7341208..18f0779 100644
--- a/src/home/sound/node_client.py
+++ b/src/home/media/node_client.py
@@ -1,44 +1,19 @@
 import requests
-import logging
 import shutil
+import logging
 
+from typing import Optional, Union
+from .storage import RecordFile
 from ..util import Addr
+from ..camera.types import CameraType
 from ..api.errors import ApiResponseError
-from typing import Optional, Union
-from .record import RecordFile
 
 
-class SoundNodeClient:
+class MediaNodeClient:
     def __init__(self, addr: Addr):
         self.endpoint = f'http://{addr[0]}:{addr[1]}'
         self.logger = logging.getLogger(self.__class__.__name__)
 
-    def amixer_get_all(self):
-        return self._call('amixer/get-all/')
-
-    def amixer_get(self, control: str):
-        return self._call(f'amixer/get/{control}/')
-
-    def amixer_incr(self, control: str, step: Optional[int] = None):
-        params = {'step': step} if step is not None else None
-        return self._call(f'amixer/incr/{control}/', params=params)
-
-    def amixer_decr(self, control: str, step: Optional[int] = None):
-        params = {'step': step} if step is not None else None
-        return self._call(f'amixer/decr/{control}/', params=params)
-
-    def amixer_mute(self, control: str):
-        return self._call(f'amixer/mute/{control}/')
-
-    def amixer_unmute(self, control: str):
-        return self._call(f'amixer/unmute/{control}/')
-
-    def amixer_cap(self, control: str):
-        return self._call(f'amixer/cap/{control}/')
-
-    def amixer_nocap(self, control: str):
-        return self._call(f'amixer/nocap/{control}/')
-
     def record(self, duration: int):
         return self._call('record/', params={"duration": duration})
 
@@ -68,7 +43,7 @@ class SoundNodeClient:
                 kwargs['remote_filesize'] = f['filesize']
             else:
                 name = f
-            item = RecordFile(name, **kwargs)
+            item = RecordFile.create(name, **kwargs)
             new_files.append(item)
         return new_files
 
@@ -82,7 +57,6 @@ class SoundNodeClient:
               method: str,
               params: dict = None,
               save_to: Optional[str] = None):
-
         kwargs = {}
         if isinstance(params, dict):
             kwargs['params'] = params
@@ -107,3 +81,40 @@ class SoundNodeClient:
             return True
 
         return r.json()['response']
+
+
+class SoundNodeClient(MediaNodeClient):
+    def amixer_get_all(self):
+        return self._call('amixer/get-all/')
+
+    def amixer_get(self, control: str):
+        return self._call(f'amixer/get/{control}/')
+
+    def amixer_incr(self, control: str, step: Optional[int] = None):
+        params = {'step': step} if step is not None else None
+        return self._call(f'amixer/incr/{control}/', params=params)
+
+    def amixer_decr(self, control: str, step: Optional[int] = None):
+        params = {'step': step} if step is not None else None
+        return self._call(f'amixer/decr/{control}/', params=params)
+
+    def amixer_mute(self, control: str):
+        return self._call(f'amixer/mute/{control}/')
+
+    def amixer_unmute(self, control: str):
+        return self._call(f'amixer/unmute/{control}/')
+
+    def amixer_cap(self, control: str):
+        return self._call(f'amixer/cap/{control}/')
+
+    def amixer_nocap(self, control: str):
+        return self._call(f'amixer/nocap/{control}/')
+
+
+class CameraNodeClient(MediaNodeClient):
+    def capture(self,
+                save_to: str,
+                with_flash: bool = False):
+        return self._call('capture/',
+                          {'with_flash': int(with_flash)},
+                          save_to=save_to)
diff --git a/src/home/media/node_server.py b/src/home/media/node_server.py
new file mode 100644
index 0000000..5d0803c
--- /dev/null
+++ b/src/home/media/node_server.py
@@ -0,0 +1,86 @@
+from .. import http
+from .record import Recorder
+from .types import RecordStatus
+from .storage import RecordStorage
+
+
+class MediaNodeServer(http.HTTPServer):
+    recorder: Recorder
+    storage: RecordStorage
+
+    def __init__(self,
+                 recorder: Recorder,
+                 storage: RecordStorage,
+                 *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        self.recorder = recorder
+        self.storage = storage
+
+        self.get('/record/', self.do_record)
+        self.get('/record/info/{id}/', self.record_info)
+        self.get('/record/forget/{id}/', self.record_forget)
+        self.get('/record/download/{id}/', self.record_download)
+
+        self.get('/storage/list/', self.storage_list)
+        self.get('/storage/delete/', self.storage_delete)
+        self.get('/storage/download/', self.storage_download)
+
+    async def do_record(self, request: http.Request):
+        duration = int(request.query['duration'])
+        max = Recorder.get_max_record_time()*15
+        if not 0 < duration <= max:
+            raise ValueError(f'invalid duration: max duration is {max}')
+
+        record_id = self.recorder.record(duration)
+        return http.ok({'id': record_id})
+
+    async def record_info(self, request: http.Request):
+        record_id = int(request.match_info['id'])
+        info = self.recorder.get_info(record_id)
+        return http.ok(info.as_dict())
+
+    async def record_forget(self, request: http.Request):
+        record_id = int(request.match_info['id'])
+
+        info = self.recorder.get_info(record_id)
+        assert info.status in (RecordStatus.FINISHED, RecordStatus.ERROR), f"can't forget: record status is {info.status}"
+
+        self.recorder.forget(record_id)
+        return http.ok()
+
+    async def record_download(self, request: http.Request):
+        record_id = int(request.match_info['id'])
+
+        info = self.recorder.get_info(record_id)
+        assert info.status == RecordStatus.FINISHED, f"record status is {info.status}"
+
+        return http.FileResponse(info.file.path)
+
+    async def storage_list(self, request: http.Request):
+        extended = 'extended' in request.query and int(request.query['extended']) == 1
+
+        files = self.storage.getfiles(as_objects=extended)
+        if extended:
+            files = list(map(lambda file: file.__dict__(), files))
+
+        return http.ok({
+            'files': files
+        })
+
+    async def storage_delete(self, request: http.Request):
+        file_id = request.query['file_id']
+        file = self.storage.find(file_id)
+        if not file:
+            raise ValueError(f'file {file} not found')
+
+        self.storage.delete(file)
+        return http.ok()
+
+    async def storage_download(self, request):
+        file_id = request.query['file_id']
+        file = self.storage.find(file_id)
+        if not file:
+            raise ValueError(f'file {file} not found')
+
+        return http.FileResponse(file.path)
diff --git a/src/home/sound/record.py b/src/home/media/record.py
index 1ad8827..d3abfbb 100644
--- a/src/home/sound/record.py
+++ b/src/home/media/record.py
@@ -1,28 +1,22 @@
+import os
 import threading
+import logging
 import time
 import subprocess
 import signal
-import os
-import logging
 
-from enum import Enum, auto
 from typing import Optional
+from ..util import find_child_processes, Addr
 from ..config import config
-from ..util import find_child_processes
 from .storage import RecordFile, RecordStorage
+from .types import RecordStatus
+from ..camera.types import CameraType
 
 
 _history_item_timeout = 7200
 _history_cleanup_freq = 3600
 
 
-class RecordStatus(Enum):
-    WAITING = auto()
-    RECORDING = auto()
-    FINISHED = auto()
-    ERROR = auto()
-
-
 class RecordHistoryItem:
     id: int
     request_time: float
@@ -122,21 +116,26 @@ class RecordHistory:
 
 
 class Recording:
+    RECORDER_PROGRAM = None
+
     start_time: float
     stop_time: float
     duration: int
     record_id: int
-    arecord_pid: Optional[int]
+    recorder_program_pid: Optional[int]
     process: Optional[subprocess.Popen]
 
     g_record_id = 1
 
     def __init__(self):
+        if self.RECORDER_PROGRAM is None:
+            raise RuntimeError('this is abstract class')
+
         self.start_time = 0
         self.stop_time = 0
         self.duration = 0
         self.process = None
-        self.arecord_pid = None
+        self.recorder_program_pid = None
         self.record_id = Recording.next_id()
         self.logger = logging.getLogger(self.__class__.__name__)
 
@@ -187,52 +186,51 @@ class Recording:
         self.start_time = cur
         self.stop_time = cur + self.duration
 
-        arecord = config['arecord']['bin']
-        lame = config['lame']['bin']
-        b = config['lame']['bitrate']
-
-        cmd = f'{arecord} -f S16 -r 44100 -t raw 2>/dev/null | {lame} -r -s 44.1 -b {b} -m m - {output} >/dev/null 2>/dev/null'
+        cmd = self.get_command(output)
         self.logger.debug(f'start: running `{cmd}`')
         self.process = subprocess.Popen(cmd, shell=True, stdin=None, stdout=None, stderr=None, close_fds=True)
 
         sh_pid = self.process.pid
         self.logger.debug(f'start: started, pid of shell is {sh_pid}')
 
-        arecord_pid = self.find_arecord_pid(sh_pid)
-        if arecord_pid is not None:
-            self.arecord_pid = arecord_pid
-            self.logger.debug(f'start: pid of arecord is {arecord_pid}')
+        pid = self.find_recorder_program_pid(sh_pid)
+        if pid is not None:
+            self.recorder_program_pid = pid
+            self.logger.debug(f'start: pid of {self.RECORDER_PROGRAM} is {pid}')
+
+    def get_command(self, output: str) -> str:
+        pass
 
     def stop(self):
         if self.process:
-            if self.arecord_pid is None:
-                self.arecord_pid = self.find_arecord_pid(self.process.pid)
+            if self.recorder_program_pid is None:
+                self.recorder_program_pid = self.find_recorder_program_pid(self.process.pid)
 
-            if self.arecord_pid is not None:
-                os.kill(self.arecord_pid, signal.SIGINT)
+            if self.recorder_program_pid is not None:
+                os.kill(self.recorder_program_pid, signal.SIGINT)
                 timeout = config['node']['process_wait_timeout']
 
-                self.logger.debug(f'stop: sent SIGINT to {self.arecord_pid}. now waiting up to {timeout} seconds...')
+                self.logger.debug(f'stop: sent SIGINT to {self.recorder_program_pid}. now waiting up to {timeout} seconds...')
                 try:
                     self.process.wait(timeout=timeout)
                 except subprocess.TimeoutExpired:
                     self.logger.warning(f'stop: wait({timeout}): timeout expired, calling terminate()')
                     self.process.terminate()
             else:
-                self.logger.warning('stop: pid of arecord is unknown, calling terminate()')
+                self.logger.warning(f'stop: pid of {self.RECORDER_PROGRAM} is unknown, calling terminate()')
                 self.process.terminate()
 
             rc = self.process.returncode
             self.logger.debug(f'stop: rc={rc}')
 
             self.process = None
-            self.arecord_pid = 0
+            self.recorder_program_pid = 0
 
         self.duration = 0
         self.start_time = 0
         self.stop_time = 0
 
-    def find_arecord_pid(self, sh_pid: int):
+    def find_recorder_program_pid(self, sh_pid: int):
         try:
             children = find_child_processes(sh_pid)
         except OSError as exc:
@@ -240,7 +238,7 @@ class Recording:
             return None
 
         for child in children:
-            if 'arecord' in child.cmd:
+            if self.RECORDER_PROGRAM in child.cmd:
                 return child.pid
 
         return None
@@ -256,6 +254,8 @@ class Recording:
 
 
 class Recorder:
+    TEMP_NAME = None
+
     interrupted: bool
     lock: threading.Lock
     history_lock: threading.Lock
@@ -265,9 +265,14 @@ class Recorder:
     next_history_cleanup_time: float
     storage: RecordStorage
 
-    def __init__(self, storage: RecordStorage):
+    def __init__(self,
+                 storage: RecordStorage,
+                 recording: Recording):
+        if self.TEMP_NAME is None:
+            raise RuntimeError('this is abstract class')
+
         self.storage = storage
-        self.recording = Recording()
+        self.recording = recording
         self.interrupted = False
         self.lock = threading.Lock()
         self.history_lock = threading.Lock()
@@ -282,7 +287,7 @@ class Recorder:
         t.start()
 
     def loop(self) -> None:
-        tempname = os.path.join(self.storage.root, 'temp.mp3')
+        tempname = os.path.join(self.storage.root, self.TEMP_NAME)
 
         while not self.interrupted:
             cur = time.time()
@@ -398,3 +403,51 @@ class Recorder:
     def get_max_record_time() -> int:
         return config['node']['record_max_time']
 
+
+class SoundRecorder(Recorder):
+    TEMP_NAME = 'temp.mp3'
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(recording=SoundRecording(),
+                         *args, **kwargs)
+
+
+class CameraRecorder(Recorder):
+    TEMP_NAME = 'temp.mp4'
+
+    def __init__(self,
+                 camera_type: CameraType,
+                 *args, **kwargs):
+        if camera_type == CameraType.ESP32:
+            recording = ESP32CameraRecording(stream_addr=kwargs['stream_addr'])
+            del kwargs['stream_addr']
+        else:
+            raise RuntimeError(f'unsupported camera type {camera_type}')
+
+        super().__init__(recording=recording,
+                         *args, **kwargs)
+
+
+class SoundRecording(Recording):
+    RECORDER_PROGRAM = 'arecord'
+
+    def get_command(self, output: str) -> str:
+        arecord = config['arecord']['bin']
+        lame = config['lame']['bin']
+        b = config['lame']['bitrate']
+
+        return f'{arecord} -f S16 -r 44100 -t raw 2>/dev/null | {lame} -r -s 44.1 -b {b} -m m - {output} >/dev/null 2>/dev/null'
+
+
+class ESP32CameraRecording(Recording):
+    RECORDER_PROGRAM = 'esp32_capture.py'
+
+    stream_addr: Addr
+
+    def __init__(self, stream_addr: Addr):
+        super().__init__()
+        self.stream_addr = stream_addr
+
+    def get_command(self, output: str) -> str:
+        bin = config['esp32_capture']['bin']
+        return f'{bin} --addr {self.stream_addr[0]}:{self.stream_addr[1]} --output-directory {output} >/dev/null 2>/dev/null'
\ No newline at end of file
diff --git a/src/home/sound/record_client.py b/src/home/media/record_client.py
index 2744a8c..f264155 100644
--- a/src/home/sound/record_client.py
+++ b/src/home/media/record_client.py
@@ -5,15 +5,17 @@ import os.path
 
 from tempfile import gettempdir
 from .record import RecordStatus
-from .node_client import SoundNodeClient
+from .node_client import SoundNodeClient, MediaNodeClient, CameraNodeClient
 from ..util import Addr
 from typing import Optional, Callable
 
 
 class RecordClient:
+    DOWNLOAD_EXTENSION = None
+
     interrupted: bool
     logger: logging.Logger
-    clients: dict[str, SoundNodeClient]
+    clients: dict[str, MediaNodeClient]
     awaiting: dict[str, dict[int, Optional[dict]]]
     error_handler: Optional[Callable]
     finished_handler: Optional[Callable]
@@ -24,20 +26,21 @@ class RecordClient:
                  error_handler: Optional[Callable] = None,
                  finished_handler: Optional[Callable] = None,
                  download_on_finish=False):
+        if self.DOWNLOAD_EXTENSION is None:
+            raise RuntimeError('this is abstract class')
+
         self.interrupted = False
         self.logger = logging.getLogger(self.__class__.__name__)
         self.clients = {}
         self.awaiting = {}
-        self.download_on_finish = download_on_finish
 
+        self.download_on_finish = download_on_finish
         self.error_handler = error_handler
         self.finished_handler = finished_handler
 
         self.awaiting_lock = threading.Lock()
 
-        for node, addr in nodes.items():
-            self.clients[node] = SoundNodeClient(addr)
-            self.awaiting[node] = {}
+        self.make_clients(nodes)
 
         try:
             t = threading.Thread(target=self.loop)
@@ -47,13 +50,14 @@ class RecordClient:
             self.stop()
             self.logger.exception(exc)
 
+    def make_clients(self, nodes: dict[str, Addr]):
+        pass
+
     def stop(self):
         self.interrupted = True
 
     def loop(self):
         while not self.interrupted:
-            # self.logger.debug('loop: tick')
-
             for node in self.awaiting.keys():
                 with self.awaiting_lock:
                     record_ids = list(self.awaiting[node].keys())
@@ -125,7 +129,7 @@ class RecordClient:
                 self.awaiting[node][record_id] = userdata
 
     def download(self, node: str, record_id: int, fileid: str):
-        dst = os.path.join(gettempdir(), f'{node}_{fileid}.mp3')
+        dst = os.path.join(gettempdir(), f'{node}_{fileid}.{self.DOWNLOAD_EXTENSION}')
         cl = self.getclient(node)
         cl.record_download(record_id, dst)
         return dst
@@ -140,3 +144,23 @@ class RecordClient:
     def _report_error(self, *args):
         if self.error_handler:
             self.error_handler(*args)
+
+
+class SoundRecordClient(RecordClient):
+    DOWNLOAD_EXTENSION = 'mp3'
+    # clients: dict[str, SoundNodeClient]
+
+    def make_clients(self, nodes: dict[str, Addr]):
+        for node, addr in nodes.items():
+            self.clients[node] = SoundNodeClient(addr)
+            self.awaiting[node] = {}
+
+
+class CameraRecordClient(RecordClient):
+    DOWNLOAD_EXTENSION = 'mp4'
+    # clients: dict[str, CameraNodeClient]
+
+    def make_clients(self, nodes: dict[str, Addr]):
+        for node, addr in nodes.items():
+            self.clients[node] = CameraNodeClient(addr)
+            self.awaiting[node] = {}
\ No newline at end of file
diff --git a/src/home/sound/storage.py b/src/home/media/storage.py
index c61f6f6..880b899 100644
--- a/src/home/sound/storage.py
+++ b/src/home/media/storage.py
@@ -10,7 +10,12 @@ from ..util import strgen
 logger = logging.getLogger(__name__)
 
 
+# record file
+# -----------
+
 class RecordFile:
+    EXTENSION = None
+
     start_time: Optional[datetime]
     stop_time: Optional[datetime]
     record_id: Optional[int]
@@ -23,14 +28,26 @@ class RecordFile:
     human_date_dmt = '%d.%m.%y'
     human_time_fmt = '%H:%M:%S'
 
+    @staticmethod
+    def create(filename: str, *args, **kwargs):
+        if filename.endswith(f'.{SoundRecordFile.EXTENSION}'):
+            return SoundRecordFile(filename, *args, **kwargs)
+        elif filename.endswith(f'.{CameraRecordFile.EXTENSION}'):
+            return CameraRecordFile(filename, *args, **kwargs)
+        else:
+            raise RuntimeError(f'unsupported file extension: {filename}')
+
     def __init__(self, filename: str, remote=False, remote_filesize=None, storage_root='/'):
+        if self.EXTENSION is None:
+            raise RuntimeError('this is abstract class')
+
         self.name = filename
         self.storage_root = storage_root
 
         self.remote = remote
         self.remote_filesize = remote_filesize
 
-        m = re.match(r'^(\d{6}-\d{6})_(\d{6}-\d{6})_id(\d+)(_\w+)?\.mp3$', filename)
+        m = re.match(r'^(\d{6}-\d{6})_(\d{6}-\d{6})_id(\d+)(_\w+)?\.'+self.EXTENSION+'$', filename)
         if m:
             self.start_time = datetime.strptime(m.group(1), RecordStorage.time_fmt)
             self.stop_time = datetime.strptime(m.group(2), RecordStorage.time_fmt)
@@ -99,24 +116,40 @@ class RecordFile:
         }
 
 
+class SoundRecordFile(RecordFile):
+    EXTENSION = 'mp3'
+
+
+class CameraRecordFile(RecordFile):
+    EXTENSION = 'mp4'
+
+
+# record storage
+# --------------
+
 class RecordStorage:
+    EXTENSION = None
+
     time_fmt = '%d%m%y-%H%M%S'
 
     def __init__(self, root: str):
+        if self.EXTENSION is None:
+            raise RuntimeError('this is abstract class')
+
         self.root = root
 
     def getfiles(self, as_objects=False) -> Union[list[str], list[RecordFile]]:
         files = []
         for name in os.listdir(self.root):
             path = os.path.join(self.root, name)
-            if os.path.isfile(path) and name.endswith('.mp3'):
-                files.append(name if not as_objects else RecordFile(name, storage_root=self.root))
+            if os.path.isfile(path) and name.endswith(f'.{self.EXTENSION}'):
+                files.append(name if not as_objects else RecordFile.create(name, storage_root=self.root))
         return files
 
     def find(self, file_id: str) -> Optional[RecordFile]:
         for name in os.listdir(self.root):
-            if os.path.isfile(os.path.join(self.root, name)) and name.endswith('.mp3'):
-                item = RecordFile(name, storage_root=self.root)
+            if os.path.isfile(os.path.join(self.root, name)) and name.endswith(f'.{self.EXTENSION}'):
+                item = RecordFile.create(name, storage_root=self.root)
                 if item.file_id == file_id:
                     return item
         return None
@@ -148,8 +181,17 @@ class RecordStorage:
         dst_fn = f'{start_time_s}_{stop_time_s}_id{record_id}'
         if os.path.exists(os.path.join(self.root, dst_fn)):
             dst_fn += strgen(4)
-        dst_fn += '.mp3'
+        dst_fn += f'.{self.EXTENSION}'
         dst_path = os.path.join(self.root, dst_fn)
 
         shutil.move(fn, dst_path)
-        return RecordFile(dst_fn, storage_root=self.root)
+        return RecordFile.create(dst_fn, storage_root=self.root)
+
+
+class SoundRecordStorage(RecordStorage):
+    EXTENSION = 'mp3'
+
+
+class CameraRecordStorage(RecordStorage):
+    EXTENSION = 'mp4'
+
diff --git a/src/home/media/types.py b/src/home/media/types.py
new file mode 100644
index 0000000..acbc291
--- /dev/null
+++ b/src/home/media/types.py
@@ -0,0 +1,13 @@
+from enum import Enum, auto
+
+
+class MediaNodeType(Enum):
+    SOUND = auto()
+    CAMERA = auto()
+
+
+class RecordStatus(Enum):
+    WAITING = auto()
+    RECORDING = auto()
+    FINISHED = auto()
+    ERROR = auto()
diff --git a/src/home/sound/__init__.py b/src/home/sound/__init__.py
deleted file mode 100644
index 43ddaff..0000000
--- a/src/home/sound/__init__.py
+++ /dev/null
@@ -1,8 +0,0 @@
-from .node_client import SoundNodeClient
-from .record import (
-    RecordStatus,
-    RecordingNotFoundError,
-    Recorder,
-)
-from .storage import RecordStorage, RecordFile
-from .record_client import RecordClient
diff --git a/src/home/web_api/web_api.py b/src/home/web_api/web_api.py
index c75c031..6b8c54e 100644
--- a/src/home/web_api/web_api.py
+++ b/src/home/web_api/web_api.py
@@ -12,7 +12,7 @@ from ..config import config, is_development_mode
 from ..database import BotsDatabase, SensorsDatabase
 from ..util import stringify, format_tb
 from ..api.types import BotType, TemperatureSensorLocation, SoundSensorLocation
-from ..sound import RecordStorage
+from ..media import SoundRecordStorage
 
 db: Optional[BotsDatabase] = None
 sensors_db: Optional[SensorsDatabase] = None
@@ -136,7 +136,7 @@ def recordings_list():
     if not os.path.isdir(root):
         raise ValueError(f'invalid node {node}: no such directory')
 
-    storage = RecordStorage(root)
+    storage = SoundRecordStorage(root)
     files = storage.getfiles(as_objects=extended)
     if extended:
         files = list(map(lambda file: file.__dict__(), files))
diff --git a/src/openwrt_log_analyzer.py b/src/openwrt_log_analyzer.py
index f6d6413..f6d6413 100644..100755
--- a/src/openwrt_log_analyzer.py
+++ b/src/openwrt_log_analyzer.py
diff --git a/src/sound_bot.py b/src/sound_bot.py
index 70d89a8..2503893 100755
--- a/src/sound_bot.py
+++ b/src/sound_bot.py
@@ -8,16 +8,15 @@ from enum import Enum
 from datetime import datetime, timedelta
 from html import escape
 from typing import Optional
+
 from home.config import config
 from home.bot import Wrapper, Context, text_filter, user_any_name
-from home.api.types import BotType
+from home.api import WebAPIClient
+from home.api.types import SoundSensorLocation, BotType
 from home.api.errors import ApiResponseError
-from home.sound import SoundNodeClient, RecordClient, RecordFile
+from home.media import SoundNodeClient, SoundRecordClient, SoundRecordFile, CameraNodeClient
 from home.soundsensor import SoundSensorServerGuardClient
-from home.camera import esp32
 from home.util import parse_addr, chunks, filesize_fmt
-from home.api import WebAPIClient
-from home.api.types import SoundSensorLocation
 
 from telegram.error import TelegramError
 from telegram import ReplyKeyboardMarkup, InlineKeyboardMarkup, InlineKeyboardButton, User
@@ -30,10 +29,10 @@ from PIL import Image
 
 logger = logging.getLogger(__name__)
 RenderedContent = tuple[str, Optional[InlineKeyboardMarkup]]
-record_client: Optional[RecordClient] = None
+record_client: Optional[SoundRecordClient] = None
 bot: Optional[Wrapper] = None
 node_client_links: dict[str, SoundNodeClient] = {}
-cam_client_links: dict[str, esp32.WebClient] = {}
+cam_client_links: dict[str, CameraNodeClient] = {}
 
 
 def node_client(node: str) -> SoundNodeClient:
@@ -42,9 +41,9 @@ def node_client(node: str) -> SoundNodeClient:
     return node_client_links[node]
 
 
-def camera_client(cam: str) -> esp32.WebClient:
+def camera_client(cam: str) -> CameraNodeClient:
     if cam not in node_client_links:
-        cam_client_links[cam] = esp32.WebClient(parse_addr(config['cameras'][cam]['addr']))
+        cam_client_links[cam] = CameraNodeClient(parse_addr(config['cameras'][cam]['addr']))
     return cam_client_links[cam]
 
 
@@ -243,7 +242,7 @@ class FilesRenderer(Renderer):
         return html, cls.places_markup(ctx, callback_prefix='f0')
 
     @classmethod
-    def filelist(cls, ctx: Context, files: list[RecordFile]) -> RenderedContent:
+    def filelist(cls, ctx: Context, files: list[SoundRecordFile]) -> RenderedContent:
         node, = callback_unpack(ctx)
 
         html_files = map(lambda file: cls.file(ctx, file, node), files)
@@ -255,7 +254,7 @@ class FilesRenderer(Renderer):
         return html, InlineKeyboardMarkup(buttons)
 
     @classmethod
-    def file(cls, ctx: Context, file: RecordFile, node: str) -> str:
+    def file(cls, ctx: Context, file: SoundRecordFile, node: str) -> str:
         html = ctx.lang('file_line', file.start_humantime, file.stop_humantime, filesize_fmt(file.filesize))
         if file.file_id is not None:
             html += f'/audio_{node}_{file.file_id}'
@@ -437,23 +436,12 @@ def camera_capture(ctx: Context) -> None:
     ctx.answer()
 
     client = camera_client(cam)
-    if client.syncsettings(camera_settings(cam)) is True:
-        logger.debug('some settings were changed, sleeping for 0.4 sec')
-        time.sleep(0.4)
-
-    client.setflash(True if flash else False)
-    time.sleep(0.2)
-
     fd = tempfile.NamedTemporaryFile(delete=False, suffix='.jpg')
     fd.close()
 
     client.capture(fd.name)
     logger.debug(f'captured photo ({cam}), saved to {fd.name}')
 
-    # disable flash led
-    if flash:
-        client.setflash(False)
-
     camera_config = config['cameras'][cam]
     if 'rotate' in camera_config:
         im = Image.open(fd.name)
@@ -972,10 +960,10 @@ if __name__ == '__main__':
     for nodename, nodecfg in config['nodes'].items():
         nodes[nodename] = parse_addr(nodecfg['addr'])
 
-    record_client = RecordClient(nodes,
-                                 error_handler=record_onerror,
-                                 finished_handler=record_onfinished,
-                                 download_on_finish=True)
+    record_client = SoundRecordClient(nodes,
+                                      error_handler=record_onerror,
+                                      finished_handler=record_onfinished,
+                                      download_on_finish=True)
 
     bot = SoundBot()
     if 'api' in config:
diff --git a/src/sound_node.py b/src/sound_node.py
index a96a098..7d8ba1a 100755
--- a/src/sound_node.py
+++ b/src/sound_node.py
@@ -3,110 +3,16 @@ import os
 
 from typing import Optional
 
-from home.config import config
 from home.util import parse_addr
-from home.sound import (
-    amixer,
-    Recorder,
-    RecordStatus,
-    RecordStorage
-)
+from home.config import config
+from home.audio import amixer
+from home.media import MediaNodeServer, SoundRecordStorage, SoundRecorder
 from home import http
 
 
-"""
-This script must be run as root as it runs arecord.
-
-This script implements HTTP API for amixer and arecord.
-"""
-
-
-# some global variables
-# ---------------------
-
-recorder: Optional[Recorder]
-routes = http.routes()
-storage: Optional[RecordStorage]
-
-
-# recording methods
-# -----------------
-
-@routes.get('/record/')
-async def do_record(request):
-    duration = int(request.query['duration'])
-    max = Recorder.get_max_record_time()*15
-    if not 0 < duration <= max:
-        raise ValueError(f'invalid duration: max duration is {max}')
-
-    record_id = recorder.record(duration)
-    return http.ok({'id': record_id})
-
-
-@routes.get('/record/info/{id}/')
-async def record_info(request):
-    record_id = int(request.match_info['id'])
-    info = recorder.get_info(record_id)
-    return http.ok(info.as_dict())
-
-
-@routes.get('/record/forget/{id}/')
-async def record_forget(request):
-    record_id = int(request.match_info['id'])
-
-    info = recorder.get_info(record_id)
-    assert info.status in (RecordStatus.FINISHED, RecordStatus.ERROR), f"can't forget: record status is {info.status}"
-
-    recorder.forget(record_id)
-    return http.ok()
-
-
-@routes.get('/record/download/{id}/')
-async def record_download(request):
-    record_id = int(request.match_info['id'])
-
-    info = recorder.get_info(record_id)
-    assert info.status == RecordStatus.FINISHED, f"record status is {info.status}"
-
-    return http.FileResponse(info.file.path)
-
-
-@routes.get('/storage/list/')
-async def storage_list(request):
-    extended = 'extended' in request.query and int(request.query['extended']) == 1
-
-    files = storage.getfiles(as_objects=extended)
-    if extended:
-        files = list(map(lambda file: file.__dict__(), files))
-
-    return http.ok({
-        'files': files
-    })
-
-
-@routes.get('/storage/delete/')
-async def storage_delete(request):
-    file_id = request.query['file_id']
-    file = storage.find(file_id)
-    if not file:
-        raise ValueError(f'file {file} not found')
-
-    storage.delete(file)
-    return http.ok()
-
-
-@routes.get('/storage/download/')
-async def storage_download(request):
-    file_id = request.query['file_id']
-    file = storage.find(file_id)
-    if not file:
-        raise ValueError(f'file {file} not found')
-
-    return http.FileResponse(file.path)
-
-
-# ALSA mixer methods
-# ------------------
+# This script must be run as root as it runs arecord.
+# Implements HTTP API for amixer and arecord.
+# -------------------------------------------
 
 def _amixer_control_response(control):
     info = amixer.get(control)
@@ -117,57 +23,56 @@ def _amixer_control_response(control):
     })
 
 
-@routes.get('/amixer/get-all/')
-async def amixer_get_all(request):
-    controls_info = amixer.get_all()
-    return http.ok(controls_info)
-
-
-@routes.get('/amixer/get/{control}/')
-async def amixer_get(request):
-    control = request.match_info['control']
-    if not amixer.has_control(control):
-        raise ValueError(f'invalid control: {control}')
+class SoundNodeServer(MediaNodeServer):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
 
-    return _amixer_control_response(control)
+        self.get('/amixer/get-all/', self.amixer_get_all)
+        self.get('/amixer/get/{control}/', self.amixer_get)
+        self.get('/amixer/{op:mute|unmute|cap|nocap}/{control}/', self.amixer_set)
+        self.get('/amixer/{op:incr|decr}/{control}/', self.amixer_volume)
 
+    async def amixer_get_all(self, request: http.Request):
+        controls_info = amixer.get_all()
+        return self.ok(controls_info)
 
-@routes.get('/amixer/{op:mute|unmute|cap|nocap}/{control}/')
-async def amixer_set(request):
-    op = request.match_info['op']
-    control = request.match_info['control']
-    if not amixer.has_control(control):
-        raise ValueError(f'invalid control: {control}')
+    async def amixer_get(self, request: http.Request):
+        control = request.match_info['control']
+        if not amixer.has_control(control):
+            raise ValueError(f'invalid control: {control}')
 
-    f = getattr(amixer, op)
-    f(control)
+        return _amixer_control_response(control)
 
-    return _amixer_control_response(control)
+    async def amixer_set(self, request: http.Request):
+        op = request.match_info['op']
+        control = request.match_info['control']
+        if not amixer.has_control(control):
+            raise ValueError(f'invalid control: {control}')
 
+        f = getattr(amixer, op)
+        f(control)
 
-@routes.get('/amixer/{op:incr|decr}/{control}/')
-async def amixer_volume(request):
-    op = request.match_info['op']
-    control = request.match_info['control']
-    if not amixer.has_control(control):
-        raise ValueError(f'invalid control: {control}')
+        return _amixer_control_response(control)
 
-    def get_step() -> Optional[int]:
-        if 'step' in request.query:
-            step = int(request.query['step'])
-            if not 1 <= step <= 50:
-                raise ValueError('invalid step value')
-            return step
-        return None
+    async def amixer_volume(self, request: http.Request):
+        op = request.match_info['op']
+        control = request.match_info['control']
+        if not amixer.has_control(control):
+            raise ValueError(f'invalid control: {control}')
 
-    f = getattr(amixer, op)
-    f(control, step=get_step())
+        def get_step() -> Optional[int]:
+            if 'step' in request.query:
+                step = int(request.query['step'])
+                if not 1 <= step <= 50:
+                    raise ValueError('invalid step value')
+                return step
+            return None
 
-    return _amixer_control_response(control)
+        f = getattr(amixer, op)
+        f(control, step=get_step())
 
+        return _amixer_control_response(control)
 
-# entry point
-# -----------
 
 if __name__ == '__main__':
     if not os.getegid() == 0:
@@ -175,9 +80,12 @@ if __name__ == '__main__':
 
     config.load('sound_node')
 
-    storage = RecordStorage(config['node']['storage'])
+    storage = SoundRecordStorage(config['node']['storage'])
 
-    recorder = Recorder(storage=storage)
+    recorder = SoundRecorder(storage=storage)
     recorder.start_thread()
 
-    http.serve(parse_addr(config['node']['listen']), routes)
+    server = SoundNodeServer(recorder=recorder,
+                             storage=storage,
+                             addr=parse_addr(config['node']['listen']))
+    server.run()
diff --git a/src/sound_sensor_server.py b/src/sound_sensor_server.py
index 20d7f0a..0303d6d 100755
--- a/src/sound_sensor_server.py
+++ b/src/sound_sensor_server.py
@@ -1,31 +1,33 @@
 #!/usr/bin/env python3
 import logging
 import threading
-import os
 
 from time import sleep
 from typing import Optional
+from functools import partial
 from home.config import config
 from home.util import parse_addr
 from home.api import WebAPIClient, RequestParams
 from home.api.types import SoundSensorLocation
 from home.soundsensor import SoundSensorServer, SoundSensorHitHandler
-from home.sound import RecordClient
+from home.media import MediaNodeType, SoundRecordClient, CameraRecordClient, RecordClient
 
 interrupted = False
 logger = logging.getLogger(__name__)
 server: SoundSensorServer
 
 
-def get_related_sound_nodes(sensor_name: str) -> list[str]:
-    if sensor_name not in config['sensor_to_sound_nodes_relations']:
+def get_related_nodes(node_type: MediaNodeType,
+                      sensor_name: str) -> list[str]:
+    if sensor_name not in config[f'sensor_to_{node_type.name.lower()}_nodes_relations']:
         raise ValueError(f'unexpected sensor name {sensor_name}')
-    return config['sensor_to_sound_nodes_relations'][sensor_name]
+    return config[f'sensor_to_{node_type.name.lower()}_nodes_relations'][sensor_name]
 
 
-def get_sound_node_config(name: str) -> Optional[dict]:
-    if name in config['sound_nodes']:
-        cfg = config['sound_nodes'][name]
+def get_node_config(node_type: MediaNodeType,
+                    name: str) -> Optional[dict]:
+    if name in config[f'{node_type.name.lower()}_nodes']:
+        cfg = config[f'{node_type.name.lower()}_nodes'][name]
         if 'min_hits' not in cfg:
             cfg['min_hits'] = 1
         return cfg
@@ -66,38 +68,43 @@ class HitHandler(SoundSensorHitHandler):
             logger.error(f'invalid sensor name: {name}')
             return
 
-        try:
-            nodes = get_related_sound_nodes(name)
-        except ValueError:
-            logger.error(f'config for node {name} not found')
-            return
-
         should_continue = False
-        for node in nodes:
-            node_config = get_sound_node_config(node)
-            if node_config is None:
-                logger.error(f'config for node {node} not found')
-                continue
-            if hits < node_config['min_hits']:
-                continue
-            should_continue = True
+        for node_type in MediaNodeType:
+            try:
+                nodes = get_related_nodes(node_type, name)
+            except ValueError:
+                logger.error(f'config for {node_type.name.lower()} node {name} not found')
+                return
+
+            for node in nodes:
+                node_config = get_node_config(node_type, node)
+                if node_config is None:
+                    logger.error(f'config for {node_type.name.lower()} node {node} not found')
+                    continue
+                if hits < node_config['min_hits']:
+                    continue
+                should_continue = True
 
         if not should_continue:
             return
 
         hc.add(name, hits)
 
-        if server.is_recording_enabled():
+        if not server.is_recording_enabled():
+            return
+        for node_type in MediaNodeType:
             try:
+                nodes = get_related_nodes(node_type, name)
                 for node in nodes:
-                    node_config = get_sound_node_config(node)
+                    node_config = get_node_config(node_type, node)
                     if node_config is None:
-                        logger.error(f'node config for {node} not found')
+                        logger.error(f'node config for {node_type.name.lower()} node {node} not found')
                         continue
 
                     durations = node_config['durations']
                     dur = durations[1] if hits > node_config['min_hits'] else durations[0]
-                    record.record(node, dur*60, {'node': node})
+                    record_clients[node_type].record(node, dur*60, {'node': node})
+
             except ValueError as exc:
                 logger.exception(exc)
 
@@ -112,22 +119,26 @@ def hits_sender():
 
 api: Optional[WebAPIClient] = None
 hc: Optional[HitCounter] = None
-record: Optional[RecordClient] = None
+record_clients: dict[MediaNodeType, RecordClient] = {}
 
 
 # record callbacks
-
 # ----------------
 
-def record_error(info: dict, userdata: dict):
+def record_error(type: MediaNodeType,
+                 info: dict,
+                 userdata: dict):
     node = userdata['node']
-    logger.error('recording ' + str(dict) + ' from node ' + node + ' failed')
+    logger.error('recording ' + str(dict) + f' from {type.name.lower()} node ' + node + ' failed')
 
-    record.forget(node, info['id'])
+    record_clients[type].forget(node, info['id'])
 
 
-def record_finished(info: dict, fn: str, userdata: dict):
-    logger.debug('record finished: ' + str(info))
+def record_finished(type: MediaNodeType,
+                    info: dict,
+                    fn: str,
+                    userdata: dict):
+    logger.debug(f'{type.name.lower()} record finished: ' + str(info))
 
     # audio could have been requested by other user (telegram bot, for example)
     # so we shouldn't 'forget' it here
@@ -140,30 +151,8 @@ def record_finished(info: dict, fn: str, userdata: dict):
 # --------------------
 
 def api_error_handler(exc, name, req: RequestParams):
-    if name == 'upload_recording':
-        logger.error('failed to upload recording, exception below')
-        logger.exception(exc)
-
-    else:
-        logger.error(f'api call ({name}, params={req.params}) failed, exception below')
-        logger.exception(exc)
-
-
-def api_success_handler(response, name, req: RequestParams):
-    if name == 'upload_recording':
-        node = req.params['node']
-        rid = req.params['record_id']
-
-        logger.debug(f'successfully uploaded recording (node={node}, record_id={rid}), api response:' + str(response))
-
-        # deleting temp file
-        try:
-            os.unlink(req.files['file'])
-        except OSError as exc:
-            logger.error(f'error while deleting temp file:')
-            logger.exception(exc)
-
-        record.forget(node, rid)
+    logger.error(f'api call ({name}, params={req.params}) failed, exception below')
+    logger.exception(exc)
 
 
 if __name__ == '__main__':
@@ -171,25 +160,35 @@ if __name__ == '__main__':
 
     hc = HitCounter()
     api = WebAPIClient(timeout=(10, 60))
-    api.enable_async(error_handler=api_error_handler,
-                     success_handler=api_success_handler)
+    api.enable_async(error_handler=api_error_handler)
 
     t = threading.Thread(target=hits_sender)
     t.daemon = True
     t.start()
 
-    nodes = {}
+    sound_nodes = {}
     for nodename, nodecfg in config['sound_nodes'].items():
-        nodes[nodename] = parse_addr(nodecfg['addr'])
+        sound_nodes[nodename] = parse_addr(nodecfg['addr'])
+
+    camera_nodes = {}
+    for nodename, nodecfg in config['camera_nodes'].items():
+        camera_nodes[nodename] = parse_addr(nodecfg['addr'])
+
+    if sound_nodes:
+        record_clients[MediaNodeType.SOUND] = SoundRecordClient(sound_nodes,
+                                                                error_handler=partial(record_error, MediaNodeType.SOUND),
+                                                                finished_handler=partial(record_finished, MediaNodeType.SOUND))
 
-    record = RecordClient(nodes,
-                          error_handler=record_error,
-                          finished_handler=record_finished)
+    if camera_nodes:
+        record_clients[MediaNodeType.CAMERA] = CameraRecordClient(camera_nodes,
+                                                                  error_handler=partial(record_error, MediaNodeType.CAMERA),
+                                                                  finished_handler=partial(record_finished, MediaNodeType.CAMERA))
 
     try:
         server = SoundSensorServer(parse_addr(config['server']['listen']), HitHandler)
         server.run()
     except KeyboardInterrupt:
         interrupted = True
-        record.stop()
+        for c in record_clients.values():
+            c.stop()
         logging.info('keyboard interrupt, exiting...')
diff --git a/systemd/camera_node.service b/systemd/camera_node.service
new file mode 100644
index 0000000..0de3cc1
--- /dev/null
+++ b/systemd/camera_node.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=HomeKit Camera Node
+After=network-online.target
+
+[Service]
+User=user
+Group=user
+Restart=on-failure
+ExecStart=/home/user/homekit/src/camera_node.py
+WorkingDirectory=/home/user
+
+[Install]
+WantedBy=multi-user.target
\ No newline at end of file
diff --git a/systemd/camera_node@.service b/systemd/camera_node@.service
new file mode 100644
index 0000000..414881e
--- /dev/null
+++ b/systemd/camera_node@.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=HomeKit Camera Node
+After=network-online.target
+
+[Service]
+User=user
+Group=user
+Restart=on-failure
+ExecStart=/home/user/homekit/src/camera_node.py --config /home/user/.config/camera_node.%i.yaml
+WorkingDirectory=/home/user
+
+[Install]
+WantedBy=multi-user.target
\ No newline at end of file
diff --git a/src/test/test_sensors_plot.py b/test/__init__.py
index e69de29..e69de29 100755..100644
--- a/src/test/test_sensors_plot.py
+++ b/test/__init__.py
diff --git a/src/test/test.py b/test/test.py
index 7ea37e6..7ea37e6 100755
--- a/src/test/test.py
+++ b/test/test.py
diff --git a/src/test/test_amixer.py b/test/test_amixer.py
index ac96881..c8bd546 100755
--- a/src/test/test_amixer.py
+++ b/test/test_amixer.py
@@ -1,12 +1,12 @@
 #!/usr/bin/env python3
 import sys, os.path
 sys.path.extend([
-    os.path.realpath(os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')),
+    os.path.realpath(os.path.join(os.path.dirname(os.path.join(__file__)), '..')),
 ])
 
 from argparse import ArgumentParser
 from src.home.config import config
-from src.home.sound import amixer
+from src.home.audio import amixer
 
 
 def validate_control(input: str):
diff --git a/src/test/test_api.py b/test/test_api.py
index 959b2b3..959b2b3 100755
--- a/src/test/test_api.py
+++ b/test/test_api.py
diff --git a/src/test/test_esp32_cam.py b/test/test_esp32_cam.py
index 883b6f0..27ce379 100755
--- a/src/test/test_esp32_cam.py
+++ b/test/test_esp32_cam.py
@@ -3,7 +3,7 @@ import sys
 import os.path
 sys.path.extend([
     os.path.realpath(
-        os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')
+        os.path.join(os.path.dirname(os.path.join(__file__)), '..')
     )
 ])
 
diff --git a/src/test/test_inverter_monitor.py b/test/test_inverter_monitor.py
index d9b63d3..cbf1b82 100755
--- a/src/test/test_inverter_monitor.py
+++ b/test/test_inverter_monitor.py
@@ -8,7 +8,7 @@ import threading
 import os.path
 sys.path.extend([
     os.path.realpath(
-        os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')
+        os.path.join(os.path.dirname(os.path.join(__file__)), '..')
     )
 ])
 
diff --git a/src/test/test_record_upload.py b/test/test_record_upload.py
index 54ff06f..a0c3faf 100755
--- a/src/test/test_record_upload.py
+++ b/test/test_record_upload.py
@@ -12,7 +12,7 @@ import time
 
 from src.home.api import WebAPIClient, RequestParams
 from src.home.config import config
-from src.home.sound import RecordClient
+from src.home.media import SoundRecordClient
 from src.home.util import parse_addr
 
 logger = logging.getLogger(__name__)
@@ -69,10 +69,10 @@ if __name__ == '__main__':
     nodes = {}
     for name, addr in config['nodes'].items():
         nodes[name] = parse_addr(addr)
-    record = RecordClient(nodes,
-                          error_handler=record_error,
-                          finished_handler=record_finished,
-                          download_on_finish=True)
+    record = SoundRecordClient(nodes,
+                               error_handler=record_error,
+                               finished_handler=record_finished,
+                               download_on_finish=True)
 
     api = WebAPIClient()
     api.enable_async(error_handler=api_error_handler,
diff --git a/src/test/test_send_fake_sound_hit.py b/test/test_send_fake_sound_hit.py
index af6b7eb..9660c45 100755
--- a/src/test/test_send_fake_sound_hit.py
+++ b/test/test_send_fake_sound_hit.py
@@ -3,7 +3,7 @@ import sys
 import os.path
 sys.path.extend([
     os.path.realpath(
-        os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')
+        os.path.join(os.path.dirname(os.path.join(__file__)), '..')
     )
 ])
 
diff --git a/test/test_sensors_plot.py b/test/test_sensors_plot.py
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/test/test_sensors_plot.py
diff --git a/src/test/test_sound_node_client.py b/test/test_sound_node_client.py
index 795165a..16feb78 100755
--- a/src/test/test_sound_node_client.py
+++ b/test/test_sound_node_client.py
@@ -1,11 +1,11 @@
 #!/usr/bin/env python3
 import sys, os.path
 sys.path.extend([
-    os.path.realpath(os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')),
+    os.path.realpath(os.path.join(os.path.dirname(os.path.join(__file__)), '..')),
 ])
 
 from src.home.api.errors import ApiResponseError
-from src.home.sound import SoundNodeClient
+from src.home.media import SoundNodeClient
 
 
 if __name__ == '__main__':
diff --git a/src/test/test_sound_server_api.py b/test/test_sound_server_api.py
index 568ea7e..1b4eb8b 100755
--- a/src/test/test_sound_server_api.py
+++ b/test/test_sound_server_api.py
@@ -3,7 +3,7 @@ import sys
 import os.path
 sys.path.extend([
     os.path.realpath(
-        os.path.join(os.path.dirname(os.path.join(__file__)), '..', '..')
+        os.path.join(os.path.dirname(os.path.join(__file__)), '..')
     )
 ])
 import threading
diff --git a/src/test/test_stopwatch.py b/test/test_stopwatch.py
index 6ff2c0e..6ff2c0e 100755
--- a/src/test/test_stopwatch.py
+++ b/test/test_stopwatch.py