From 239d661539de1579bde8985aef645a255c0ddc31 Mon Sep 17 00:00:00 2001
From: Jakob Ketterl <jakob.ketterl@gmx.de>
Date: Fri, 16 Feb 2024 23:45:51 +0100
Subject: [PATCH] activate sstv for background decoding

---
 csdr/chain/sstv.py       | 4 ++--
 owrx/modes.py            | 9 ++++++++-
 owrx/service/__init__.py | 3 +++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/csdr/chain/sstv.py b/csdr/chain/sstv.py
index 2f62dd1c..66964610 100644
--- a/csdr/chain/sstv.py
+++ b/csdr/chain/sstv.py
@@ -1,5 +1,5 @@
 from owrx.sstv import SstvParser
-from csdr.chain.demodulator import SecondaryDemodulator, FixedAudioRateChain
+from csdr.chain.demodulator import ServiceDemodulator
 from pycsdr.modules import FmDemod, Buffer
 from pycsdr.types import Format
 from csdrsstv.modules import SstvDecoder
@@ -7,7 +7,7 @@ from owrx.feature import FeatureDetector
 from typing import Optional
 
 
-class Sstv(SecondaryDemodulator, FixedAudioRateChain):
+class Sstv(ServiceDemodulator):
     def __init__(self):
         self.imageBuffer = Buffer(Format.CHAR)
         super().__init__([
diff --git a/owrx/modes.py b/owrx/modes.py
index 30af0511..b9aaab9c 100644
--- a/owrx/modes.py
+++ b/owrx/modes.py
@@ -140,7 +140,14 @@ class Modes(object):
         DigitalMode("rtty170", "RTTY 45/170", underlying=["usb", "lsb"]),
         DigitalMode("rtty450", "RTTY 50N/450", underlying=["lsb", "usb"]),
         DigitalMode("rtty85", "RTTY 50N/85", underlying=["lsb", "usb"]),
-        DigitalMode("sstv", "SSTV", underlying=["usb", "lsb"], bandpass=Bandpass(1100, 2400)),
+        DigitalMode(
+            "sstv",
+            "SSTV",
+            underlying=["usb", "lsb"],
+            bandpass=Bandpass(1100, 2400),
+            requirements=["sstv"],
+            service=True
+        ),
         WsjtMode("ft8", "FT8"),
         WsjtMode("ft4", "FT4"),
         WsjtMode("jt65", "JT65"),
diff --git a/owrx/service/__init__.py b/owrx/service/__init__.py
index d78b03e3..460f937b 100644
--- a/owrx/service/__init__.py
+++ b/owrx/service/__init__.py
@@ -327,6 +327,9 @@ class ServiceHandler(SdrSourceEventClient):
         elif mod == "ism":
             from csdr.chain.rtl433 import Rtl433
             return Rtl433()
+        elif mod == "sstv":
+            from csdr.chain.sstv import Sstv
+            return Sstv()
 
         raise ValueError("unsupported service modulation: {}".format(mod))