Sure, but even that double is a pretty trivial amount. It's probably way less than the standby power for various devices in my house that have "soft off". Before I measured it, I thought the absolute difference was going to be a lot bigger.
The reason this is interesting to me is something that might be peculiar to the EXVIST device (and maybe some others). When the dongle is sleeping, it shows a static image "Video Lost". The codecs for that are funky in some way that Channels doesn't like.
2024/06/14 16:39:28.068367 [ENC] Starting encoder for ch28 in /shares/DVR/Streaming/ch28-dANY-ip192.168.1.33-1696669460/encoder-1-3963693481 at 1 (0.000000) (encoder=h264_v4l2m2m, codec=h264, acodec=copy, resolution=1080, deinterlacer=blend, bitrate=10000, segment_size=0.01)
2024/06/14 16:39:28.080797 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: [mpegts @ 0x1c5a7080] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B), none): unspecified size
2024/06/14 16:39:28.080917 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: Consider increasing the value for the 'analyzeduration' and 'probesize' options
2024/06/14 16:39:28.080960 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: [mpegts @ 0x1c5a7080] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp): unspecified sample rate
2024/06/14 16:39:28.081002 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: Consider increasing the value for the 'analyzeduration' and 'probesize' options
2024/06/14 16:39:28.083727 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: Cannot determine format of input stream 0:0 after EOF
2024/06/14 16:39:28.083886 [HLS] ffmpeg: ch28-dANY-ip192.168.1.33-1-h264-copy---10000-0-1080-0-0---false-false-0.01-0: Error marking filters as finished
2024/06/14 16:39:28.099973 [ENC] Encoder stopped for ch28 in /shares/DVR/Streaming/ch28-dANY-ip192.168.1.33-1696669460/encoder-1-3963693481 after starting from 1 without encoding any segments
2
Channels treats it as an error and retries a couple times. Not that it matters, but VLC closes the stream when the encoder switches from static to video or vice versa; VLC doesn't have any trouble displaying either thing, but it doesn't care for the transition.
It makes the timing to wake up kind of complicated. With enough effort, I could probably work it out. (I should say "with enough additional effort" because I've already spent quite a bit of time on it.) I'm taking the lazy man's easy way out.
I'm not criticizing, but I am curious if you have measured the power draw of any of those encoders in various states.