Question / Help No Longer Able to Stream But I Can Record

[TheDarthTux]

Hi
I am having problems streaming on Linux. For what ever reason I am getting the dialogue box saying

"Starting the output failed. Please check the log for details"
"Note: if you are using the NVENC or AMD encoders, make sure your video drivers are up to date"

I am using an AMD GPU with the latest kernel so video drivers should be fine but I am also not able to stream even using the software encoder. So I know it is not the GPU but something else. I was able to stream in as recently as March of 2019 I believe. I have attached the log file.

Here is my log file

08:52:21 PM.465: CPU Name: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
08:52:21 PM.465: CPU Speed: 3604.986MHz
08:52:21 PM.466: Physical Cores: 4, Logical Cores: 8
08:52:21 PM.466: Physical Memory: 32170MB Total, 2102MB Free
08:52:21 PM.466: Kernel Version: Linux 5.1.16-acso
08:52:21 PM.466: Distribution: "elementary OS" "5.0"
08:52:21 PM.492: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.19.6
08:52:21 PM.493: Portable mode: false
08:52:21 PM.535: OBS 23.2.1 (linux)
08:52:21 PM.535: ---------------------------------
08:52:21 PM.535: ---------------------------------
08:52:21 PM.535: audio settings reset:
08:52:21 PM.535:     samples per sec: 44100
08:52:21 PM.535:     speakers:        8
08:52:21 PM.542: ---------------------------------
08:52:21 PM.542: Initializing OpenGL...
08:52:21 PM.640: Loading up OpenGL on adapter X.Org AMD Radeon VII (VEGA20, DRM 3.30.0, 5.1.16-acso, LLVM 9.0.0)
08:52:21 PM.640: OpenGL loaded successfully, version 4.5 (Core Profile) Mesa 19.2.0-devel - padoka PPA, shading language 4.50
08:52:21 PM.651: ---------------------------------
08:52:21 PM.651: video settings reset:
08:52:21 PM.651:     base resolution:   3840x2160
08:52:21 PM.651:     output resolution: 2560x1440
08:52:21 PM.651:     downscale filter:  Lanczos
08:52:21 PM.651:     fps:               60/1
08:52:21 PM.651:     format:            NV12
08:52:21 PM.651:     YUV mode:          601/Partial
08:52:21 PM.651: NV12 texture support not available
08:52:21 PM.653: Audio monitoring device:
08:52:21 PM.653:     name: Default
08:52:21 PM.653:     id: default
08:52:21 PM.653: ---------------------------------
08:52:21 PM.654: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
08:52:21 PM.742: No blackmagic support
08:52:21 PM.763: os_dlopen(libnvidia-encode.so.1->libnvidia-encode.so.1): libnvidia-encode.so.1: cannot open shared object file: No such file or directory
08:52:21 PM.763:
08:52:21 PM.763: FFMPEG VAAPI supported
08:52:21 PM.775: VLC found, VLC video source enabled
08:52:21 PM.775: ---------------------------------
08:52:21 PM.775:   Loaded Modules:
08:52:21 PM.775:     vlc-video.so
08:52:21 PM.775:     text-freetype2.so
08:52:21 PM.775:     rtmp-services.so
08:52:21 PM.775:     obs-x264.so
08:52:21 PM.775:     obs-transitions.so
08:52:21 PM.775:     obs-outputs.so
08:52:21 PM.775:     obs-libfdk.so
08:52:21 PM.775:     obs-filters.so
08:52:21 PM.775:     obs-ffmpeg.so
08:52:21 PM.775:     linux-v4l2.so
08:52:21 PM.775:     linux-pulseaudio.so
08:52:21 PM.775:     linux-jack.so
08:52:21 PM.775:     linux-decklink.so
08:52:21 PM.775:     linux-capture.so
08:52:21 PM.775:     linux-alsa.so
08:52:21 PM.775:     image-source.so
08:52:21 PM.775:     frontend-tools.so
08:52:21 PM.775:     decklink-ouput-ui.so
08:52:21 PM.775: ---------------------------------
08:52:21 PM.775: ==== Startup complete ===============================================
08:52:21 PM.777: All scene data cleared
08:52:21 PM.777: ------------------------------------------------
08:52:21 PM.790: pulse-input: Server name: 'pulseaudio 11.1'
08:52:21 PM.790: pulse-input: An error occurred while getting the source info!
08:52:21 PM.790: pulse-input: Server name: 'pulseaudio 11.1'
08:52:21 PM.790: pulse-input: Audio format: s16le, 48000 Hz, 2 channels
08:52:21 PM.790: pulse-input: Started recording from 'alsa_input.usb-046d_Logitech_Webcam_C930e_B15EF6DE-02.analog-stereo'
08:52:21 PM.791: pulse-input: Server name: 'pulseaudio 11.1'
08:52:21 PM.791: pulse-input: Audio format: s16le, 44100 Hz, 2 channels
08:52:21 PM.791: pulse-input: Started recording from 'alsa_input.usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00.analog-stereo'
08:52:21 PM.794: xshm-input: Geometry 3840x2160 @ 0,0
08:52:21 PM.796: Switched to scene 'Scene'
08:52:21 PM.796: ------------------------------------------------
08:52:21 PM.796: Loaded scenes:
08:52:21 PM.796: - scene 'Scene':
08:52:21 PM.796:     - source: 'Youtube Capture (XSHM)' (xshm_input)
08:52:21 PM.796: ------------------------------------------------
08:52:22 PM.298: adding 23 milliseconds of audio buffering, total audio buffering is now 23 milliseconds (source: Mic/Aux)
08:52:22 PM.298:
08:52:24 PM.624: adding 23 milliseconds of audio buffering, total audio buffering is now 46 milliseconds (source: Mic/Aux 2)
08:52:24 PM.624:
08:52:25 PM.133: ---------------------------------
08:52:25 PM.133: [FFMPEG VAAPI encoder: 'streaming_h264'] settings:
08:52:25 PM.133:     device:       /dev/dri/renderD128
08:52:25 PM.133:     qp:           20
08:52:25 PM.133:     quality:      0
08:52:25 PM.133:     profile:      578
08:52:25 PM.133:     level:        40
08:52:25 PM.133:     bitrate:      2500
08:52:25 PM.133:     keyint:       120
08:52:25 PM.133:     width:        2560
08:52:25 PM.133:     height:       1440
08:52:25 PM.133:     b-frames:     0
08:52:25 PM.133:
08:52:25 PM.198: Invalid channel count
08:52:25 PM.198: libfdk_aac encoder creation failed
08:52:25 PM.198: Stream output type 'rtmp_output' failed to start!
08:56:27 PM.179: Invalid channel count
08:56:27 PM.179: libfdk_aac encoder creation failed
08:56:27 PM.179: Stream output type 'rtmp_output' failed to start!

These are my settings

Thanks

 

[Narcogen]

Are you actually streaming 7.1 surround? The error in the log is "invalid channel count"

 

[TheDarthTux]

Are you actually streaming 7.1 surround? The error in the log is "invalid channel count"

Thanks, changing the audio output to stereo fixed it.

I am going to have to figure out what the issue is with my system PulseAudio setup. Up until recently it was defaulting to 7.1 output as I set it up to since I am using an HTPC setup. The PC is connected via HDMI to a TV which then passes the audio through to an AV receiver via optical cable. Before that it was directly connected to the AV retriever.

In both cases, my PC should have 7.1 audio output but for whatever reason the audio configurations have gone nuts and will only allow stereo output.