ffmpeg streaming

kzo81 · 03-20-2019, 02:23 AM

Hi,

Do you know how could I listen into the stream with VLC?

This runs on the device:

Code:

ffmpeg -f alsa -re -i hw:0,0 -acodec libmp3lame -ab 32k -ac 1 -shortest -f rtp rtp://127.0.0.1:4444

Either does it work:

Quote:

ffmpeg -re -f lavfi -i aevalsrc="sin(400*2*PI*t)" -ar 8000 -f mulaw -f rtp rtp://localhost:4444

I tried this with the other laptop:

Code:

vlc rtp://<IP>:4444/live.sdp
vlc rtp://<IP>:4444

pan64 · 03-20-2019, 01:24 PM

have you checked this page already: https://trac.ffmpeg.org/wiki/StreamingGuide ?

kzo81 · 03-20-2019, 02:25 PM

Quote:

Originally Posted by pan64

have you checked this page already: https://trac.ffmpeg.org/wiki/StreamingGuide ?

Yes.

kzo81 · 10-16-2019, 07:08 AM

Having checked the documentation I can stream the audio with this script:

Code:

#!/bin/bash

streaming_port=4444

ffserver_config="/etc/ffserver.conf"

if [ ! -e "$ffserver_config" ];then
cat > "$ffserver_config" <<EOF

HTTPPort ${streaming_port}
HTTPBindAddress 0.0.0.0
MaxHTTPConnections 10
MaxClients 10
MaxBandwidth 4096
CustomLog /var/log/ffserver.log

<Feed audio.ffm>
        File /tmp/audio.ffm
        FileMaxSize 1024M
</Feed>

<Stream audio>
	Feed audio.ffm
        Format wav
        AudioCodec pcm_s16le
        AudioBitRate 256
        AudioChannels 2
        AudioSampleRate 16000
        NoVideo
        StartSendOnKey
</Stream>

<Stream stat.html>
        Format status
</Stream>
EOF
fi
#
ffserver -f /etc/ffserver.conf &

#
sleep 3

ffmpeg -f alsa -i hw:0,0 -acodec pcm_s16le -shortest http://localhost:${streaming_port}/audio.ffm

It works until /var/volatile folder reaches 100%. Do you know any idea how to prevent this? I need the streaming 0-24.

pan64 · 10-16-2019, 12:00 PM

what is in that folder?

kzo81 · 10-17-2019, 12:46 AM

Quote:

Originally Posted by pan64

what is in that folder?

a copy of this file: /tmp/audio.ffm

I figured out in the meantime that if I set this FileMaxSize 1024M in the config file to FileMaxSize 32M than that file doesnt grow over. I'm still testing. Thanks though!