Startup errors for MJPG streaming (Raspberry Pi 4)

[mcguirev10]

Using this streaming command (split for easy reading) with clvc yields the error messages shown below. I'm looking for advice that might help to clean up the errors. Streaming does work normally after this (and there are no further errors), but this is used in some sample code for process control, so it would be nice if it ran cleanly. I'm new to using VLC for anything but occasional GUI-based video playback.

I gather the first PulseAudio error probably means PulseAudio isn't installed but I thought acodec=none would suppress that.

This is on a Raspberry Pi 4B. I wasn't sure if it would be better to post here or in the Linux section.

Command:

Code: Select all

stream:///dev/stdin --sout "#transcode{vcodec=mjpg,vb=2500,fps=20,acodec=none} :standard{access=http{mime=multipart/x-mixed-replace;boundary= --7b3cc56e5f51db803f790dad720ed50a},mux=mpjpeg,dst=:8554/}" :demux=h264

Errors:

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[007bb298] vlcpulse audio output error: PulseAudio server connection failure: Connection refused [0079d2c8] main interface error: no suitable interface module [0073fb58] main libvlc error: interface "globalhotkeys,none" initialization failed [0079d2c8] dummy interface: using the dummy interface module... [b2705a68] main stream error: unknown query 0x30e in demux_vaControlHelper [b23035c8] mmal_codec generic: VCSM init succeeded: CMA [b2303890] avcodec encoder error: Unknown option "rc_buffer_aggressivity" [b2363c08] chain filter error: Too high level of recursion (3) [b23636a8] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b23636a8] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b23636a8] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b23636a8] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b236b828] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b236b828] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b236b828] main filter error: Failed to create video converter [b2363c08] chain filter error: Too high level of recursion (3) [b236b828] main filter error: Failed to create video converter [b2303890] avcodec encoder error: Unknown option "rc_buffer_aggressivity"