why transcode audio to aac is not working?

[latel]

1. why transcode audio to aac is not working?
2. why there is a method SETUP failed: 461 Unsupported transport error log in ffprobe, which also can see in scrypted logs.

Thank you.

go2rtc

log:
  level: debug
  
api:
  listen: ":1984"    # default ":1984", HTTP API port ("" - disabled)

rtsp:
  listen: ":8554"    # RTSP Server TCP port, default - 8554
  default_query: "audio&video"  # optional, default codecs filters ?audio

streams:
  tapo_c120: 
    - rtsp://admin_tapo:[email protected]/stream1
    - "ffmpeg:tapo_c120#audio=aac"

ffprobe rtsp://10.10.10.11:9554/tapo_c120                 
ffprobe version 7.1 Copyright (c) 2007-2024 the FFmpeg developers
  built with Apple clang version 16.0.0 (clang-1600.0.26.4)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1_3 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.100 / 61. 19.100
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
[rtsp @ 0x153b053b0] method SETUP failed: 461 Unsupported transport
Input #0, rtsp, from 'rtsp://10.10.10.11:9554/tapo_c120':
  Metadata:
    title           : go2rtc/1.9.8
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
  Stream #0:1: Video: h264 (High), yuv420p(progressive), 2560x1440, 20 fps, 20 tbr, 90k tbn

[AlexxIT]

1. rtsp -> default_query: audio&video will ask one ANY audio and one ANY video from stream. Your stream has H264 video, PCMA audio and AAC audio. So you getting H264 video and PCMA audio.
2. By default many apps (including ffprobe) request RTSP UDP. This is not supported by go2rtc. So ffprobe switching to RTSP TCP.

[latel]

understand, thanks