RTSP - low bitrate

[gtxaspec]

researching

[gtxaspec]

@Vendo232 what are you using to measure the bitrate?

[gtxaspec]

Can you try to ffmpeg -i <file> to compare between RTSP fw and wz_mini?

this is what i show from wz_mini:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : LIVE555 Streaming Media v2022.04.15
    encoder         : Lavf58.76.100
    comment         : LIVE555 Streaming Media v2022.04.15
  Duration: 00:00:34.06, start: 0.000000, bitrate: 982 kb/s
  Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 980 kb/s, 19.99 fps, 20 tbr, 90k tbn, 40 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]

you can use the command ffmpeg -i rtsp://user:pass@ip:8554/unicast -acodec copy -vcodec copy test.mp4 to record

[gtxaspec]

there may be a bug in the v4l2rtspserver when audio is enabled the bitrate is much lower and lots of stream errors, at least for me.

i will try to recompile, and also test a different version of the rtspserver.

[gtxaspec]

this is fixed now

[Vendo232]

Can you try to ffmpeg -i <file> to compare between RTSP fw and wz_mini?

this is what i show from wz_mini:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : LIVE555 Streaming Media v2022.04.15
    encoder         : Lavf58.76.100
    comment         : LIVE555 Streaming Media v2022.04.15
  Duration: 00:00:34.06, start: 0.000000, bitrate: 982 kb/s
  Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 980 kb/s, 19.99 fps, 20 tbr, 90k tbn, 40 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]

you can use the command ffmpeg -i rtsp://user:pass@ip:8554/unicast -acodec copy -vcodec copy test.mp4 to record

here is the RTSP WZ HACK file

' ffmpeg version 2022-05-12-git-30e2bb0f64-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 11.3.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 57. 24.101 / 57. 24.101
libavcodec 59. 28.100 / 59. 28.100
libavformat 59. 23.100 / 59. 23.100
libavdevice 59. 6.100 / 59. 6.100
libavfilter 8. 38.100 / 8. 38.100
libswscale 6. 6.100 / 6. 6.100
libswresample 4. 6.100 / 4. 6.100
libpostproc 56. 5.100 / 56. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'b.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.45.100
Duration: 00:02:26.03, start: 0.000000, bitrate: 287 kb/s
Stream #0:00x1: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 285 kb/s, 20 fps, 20 tbr, 10240 tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0] '

and here is from wyze rtsp fw

' ffmpeg version 2022-05-12-git-30e2bb0f64-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 11.3.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 57. 24.101 / 57. 24.101
libavcodec 59. 28.100 / 59. 28.100
libavformat 59. 23.100 / 59. 23.100
libavdevice 59. 6.100 / 59. 6.100
libavfilter 8. 38.100 / 8. 38.100
libswscale 6. 6.100 / 6. 6.100
libswresample 4. 6.100 / 4. 6.100
libpostproc 56. 5.100 / 56. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'b.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.45.100
Duration: 00:02:26.03, start: 0.000000, bitrate: 287 kb/s
Stream #0:00x1: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 285 kb/s, 20 fps, 20 tbr, 10240 tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : [0][0][0][0] '

[Vendo232]

you can achieve the same in VLC player

[Vendo232]

I`m going to test the new version today

[gtxaspec]

@Vendo232 can you test something for me on your existing install?

[Vendo232]

If course

[gtxaspec]

open up vlc and start watching the stream, then connect with ssh, and run the following commands on the camera:

/system/bin/impdbg --enc_rc_s 0:48:4:2048
/system/bin/impdbg --enc_rc_s 0:52:4:2048

then monitor the quality

[Vendo232]

should I look for bitrate?

[gtxaspec]

look at the general image quality and see if it is ok for you compared to stock rtsp and anything else

[gtxaspec]

you can raise the 2048 number up to 8096 if you want

[Vendo232]

what is the difference between command with 48 and 52? should they be executed toghether everytime?

[gtxaspec]

first one is average and second is max bitrate, you typically do want to set them together if you are changing them

[Vendo232]

I`m running the RTSP FW + mini RTSP and the cam is very slow.

[gtxaspec]

Oh, i see, yes you are running 2 servers it will slow down since the quality goes up significantly. try stopping one, and run the commands and see if your quality goes up

[gtxaspec]

(the image quality should be identical between the two servers anyway)

[gtxaspec]

[Vendo232]

trying 8096 on both, it is looking really good

[gtxaspec]

nice. i will issue a new release soon