I'm re-streaming rtsp stream with vlc for two cameras. The second camera doesn't have audio and it works fine, for the first one (which has audio) stream start fails 9 out of 10 times with error "core decoder error: cannot continue streaming due to errors". However if the streams starts, it works fine until restarted. However I get some errors on the cam 1 (when the stream starts correctly):
core mux warning: late buffer for mux input (145003)
And sometimes (rarely) I get these errors:
mux_ts mux warning: packet with too strange dts (dts=-6272,old=0,pcr=0)
I'm using VLC 2.2.4 on CentOS7 from nux-dextop repo:
VLC media player 2.2.4 Weatherwax (revision 2.2.3-37-g888b7e89)
It's installed on Virtual machine without desktop and probably doesn't have any audio support (no virtual audio hardware).
vlc start script for the first camera (s):
#!/bin/bash
URL="rtsp://192.168.40.201:554/axis-media/media.amp"
#--rtsp-frame-buffer-size=200000 \
sudo -u vlc cvlc -v \
--loop --http-reconnect --http-continuous -I dummy $URL \
--logfile=/var/log/bird-cam1.log \
--sout '#transcode{}'\
':duplicate{dst=std{access=livehttp{seglen=3,delsegs=true,numsegs=5,index=/var/www/html/live/cam1/mystream.m3u8,index-url=http://10.20.30.40/live/cam1/mystream-########.ts},mux=ts{use-key-frames},'\
'dst=/var/www/html/live/cam1/mystream-########.ts},'\
'dst=std{access=http,mux=ts,dst=:8081/video.mp4}}'
vlc output
VLC media player 2.2.4 Weatherwax (revision 2.2.3-37-g888b7e89)
[0000000000b4f348] core interface error: no suitable interface module
[0000000000a50118] core libvlc error: interface "globalhotkeys,none" initialization failed
[0000000000b4f348] dbus interface error: Failed to connect to the D-Bus session daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
[0000000000b4f348] core interface error: no suitable interface module
[0000000000a50118] core libvlc error: interface "dbus,none" initialization failed
[0000000000b4f348] dummy interface: using the dummy interface module...
MultiFramedRTPSource::doGetNextFrame1(): The total received frame size exceeds the client's buffer size (100000). 75129 bytes of trailing data will be dropped!
[00007fb95c0009b8] core input error: ES_OUT_RESET_PCR called
[00007fb960005148] mux_ts mux warning: packet with too strange dts (dts=-6457,old=0,pcr=0)
[00007fb9604d1228] mux_ts mux warning: packet with too strange dts (dts=-6457,old=0,pcr=0)
[00007fb95c0009b8] core input error: ES_OUT_RESET_PCR called
[00007fb96051d348] core decoder error: cannot continue streaming due to errors
Any ideas why the stream doesn't start every time? Both cameras stream RTSP. Codec h264 AVC, for the first camera audio is mp4a
Update:
Confirmed that the audio is causing the problem. With audio stream stopped vlc works just fine. Audio codec is AAC. It was set to 32kHz sampling/32 kbit/s. Now it's 48kHz sampling/64kbit/s - still the same problem.
Update:
I tried different settings in the camera for AAC - 16kHz - same result. Setting audio to G.711 resulted "unsupported coded" error, but stream was still able to start even though audio wasn't working.
