Camera livestream failing
I've installed and configured the plugin, but haven't been able to get the camera livestream to work.  From the debug logs, it looks like the stream URL is consistently returning a 404.  I've read the readme and checked those items-- microphone is enabled and ffmpeg is installed.

[6/12/2022, 8:17:15 AM] [homebridge-google-nest-sdm] Recording active set to true
[6/12/2022, 8:17:15 AM] [homebridge-google-nest-sdm] Recording active set to true
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] Video stream requested: 1280 x 720, 30 fps, 299 kbps Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] Executing command sdm.devices.commands.CameraLiveStream.GenerateRtspStream with parameters undefined Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] Execution of command sdm.devices.commands.CameraLiveStream.GenerateRtspStream returned {"streamUrls":{"rtspUrl":"rtsps://stream-us1-charlie.dropcam.com:443/sdm_live_stream/***?auth=***"},"streamExtensionToken":"***","expiresAt":"2022-06-12T12:22:16.749Z"} Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] Stream command: /usr/local/lib/node_modules/homebridge-google-nest-sdm/node_modules/ffmpeg-for-homebridge/ffmpeg -analyzeduration 15000000 -probesize 100000000  -i rtsps://stream-us1-charlie.dropcam.com:443/sdm_live_stream/***?auth=**** -w -an -sn -dn -codec:v libx264 -preset ultrafast -tune zerolatency -pix_fmt yuv420p -color_range mpeg -bf 0 -r 30 -b:v 1196k -bufsize 1196k -maxrate 2392k -filter:v scale='min(1280,iw)':'min(720,ih)':force_original_aspect_ratio=decrease,scale=trunc(iw/2)*2:trunc(ih/2)*2 -payload_type 99 -ssrc 9297771 -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 -srtp_out_params 8L/fZdPyul2rwaHLG6pHuqTy+LuNzh2GVA7vxCFn srtp://192.168.86.65:55017?rtcpport=55017&pkt_size=1378 -vn -sn -dn -codec:a libfdk_aac -profile:a aac_eld -flags +global_header -ar 16k -b:a 24k -ac 1 -payload_type 110 -ssrc 14202177 -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 -srtp_out_params H6LV5Zqg1Duk545OtsA2OsYJ7KB28Q3zhUmIQyYT srtp://192.168.86.65:57979?rtcpport=57979&pkt_size=188 -loglevel level+verbose undefined Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info] ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   configuration: --pkgconfigdir=/build/workspace/lib/pkgconfig --prefix=/build/workspace --pkg-config-flags=--static --extra-cflags=-I/build/workspace/include --extra-ldflags=-L/build/workspace/lib --extra-libs='-lpthread -lm' --enable-static --disable-debug --disable-shared --disable-ffplay --disable-doc --enable-openssl --enable-gpl --enable-version3 --enable-nonfree --enable-pthreads --enable-libvpx --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-runtime-cpudetect --enable-libfdk-aac --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-decoder=h264 --enable-network --enable-protocol=tcp --enable-libspeex --enable-demuxer=rtsp --enable-indev=alsa --enable-outdev=alsa Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libavutil      56. 51.100 / 56. 51.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libavcodec     58. 91.100 / 58. 91.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libavformat    58. 45.100 / 58. 45.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libavdevice    58. 10.100 / 58. 10.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libavfilter     7. 85.100 /  7. 85.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libswscale      5.  7.100 /  5.  7.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libswresample   3.  7.100 /  3.  7.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [info]   libpostproc    55.  7.100 / 55.  7.100 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [tcp @ 0x558c8c76f940] [verbose] Starting connection attempt to 35.227.225.36 port 443 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm] [tcp @ 0x558c8c76f940] [verbose] Successfully connected to 35.227.225.36 port 443 Front Door Doorbell
[6/12/2022, 8:17:16 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] [rtsp @ 0x558c8c76c700] [error] method DESCRIBE failed: 404 Not Found Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] [error] rtsps://stream-us1-charlie.dropcam.com:443/sdm_live_stream/CiUA2vuxr4JJof6e0inoxoKZ5TYp6dwi17zvfW_ouA6alWSF-DPlEnEA3HkqUNSBHiqqkRACZ__rDG5qbEX8sK3nOIv3FZl2wQG0mUTnfyqBXwtSh0XuHcIuYsK7RePqJvWSq8R-bO_fycNBiCaIRvk-imrzGzBCmhQfD6RCgZxfMg4x8tZf0nCoyB6VDAcRJvDsUQwEQvvvSw?auth=***: Server returned 404 Not Found Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm]  Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] FFmpeg exited with code: 1 and signal: null (Error) Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] Executing command sdm.devices.commands.CameraLiveStream.StopRtspStream with parameters {"streamExtensionToken":"***"} Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] Execution of command sdm.devices.commands.CameraLiveStream.StopRtspStream returned undefined Front Door Doorbell
[6/12/2022, 8:17:28 AM] [homebridge-google-nest-sdm] Stopped video stream. Front Door Doorbell
