Audio Server Web Access

[Pijit]

It looks like the stream is working, but I can't access it via a web page...

(Started with a command in Terminal) (ffmpeg -f alsa -i hw:0,0 -acodec mp3 -f rtp rtp://192.168.0.22:24)

TERMINAL DISPLAY...

Input #0, alsa, from 'hw:0,0': Duration: N/A, start: 1572378765.640398, bitrate: 1536 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, rtp, to 'rtp://192.168.0.22:24': Metadata: encoder : Lavf58.20.100 Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, s16p Metadata: encoder : Lavc58.35.100 libmp3lame SDP: v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 192.168.0.22 t=0 0 a=tool:libavformat 58.20.100 m=audio 24 RTP/AVP 14

[alsa @ 0x17d51e0] ALSA buffer xrun.rate= 128.8kbits/s speed=0.501x
[alsa @ 0x17d51e0] ALSA buffer xrun.rate= 87.7kbits/s speed=0.764x ...

END TERMINAL DISPLAY

HTML code in my web page...

I've tried variations on this code, but nothing works. Any ideas??? Thanks

[flatmax]

The HTML code didn't come through!

On 30/10/19 10:56 pm, Pijit wrote:

It looks like the stream is working, but I can't access it via a web page...

(Started with a command in Terminal) (ffmpeg -f alsa -i hw:0,0 -acodec mp3 -f rtp rtp://192.168.0.22:24)

TERMINAL DISPLAY...

Input #0, alsa, from 'hw:0,0': Duration: N/A, start: 1572378765.640398, bitrate: 1536 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, rtp, to 'rtp://192.168.0.22:24': Metadata: encoder : Lavf58.20.100 Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, s16p Metadata: encoder : Lavc58.35.100 libmp3lame SDP: v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 192.168.0.22 t=0 0 a=tool:libavformat 58.20.100 m=audio 24 RTP/AVP 14

[alsa @ 0x17d51e0] ALSA buffer xrun.rate= 128.8kbits/s speed=0.501x [alsa @ 0x17d51e0] ALSA buffer xrun.rate= 87.7kbits/s speed=0.764x ...

END TERMINAL DISPLAY

HTML code in my web page...

  Live Stream

I've tried variations on this code, but nothing works. Any ideas??? Thanks

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[Pijit]

Yeah, I noticed that when I went back to look at the post today. Fixed. Take another look.

-Pete

On Oct 30, 2019, at 4:39 PM, Matt Flax notifications@github.com wrote:

The HTML code didn't come through!

On 30/10/19 10:56 pm, Pijit wrote:

It looks like the stream is working, but I can't access it via a web page...

(Started with a command in Terminal) (ffmpeg -f alsa -i hw:0,0 -acodec mp3 -f rtp rtp://192.168.0.22:24)

TERMINAL DISPLAY...

Input #0, alsa, from 'hw:0,0': Duration: N/A, start: 1572378765.640398, bitrate: 1536 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, rtp, to 'rtp://192.168.0.22:24': Metadata: encoder : Lavf58.20.100 Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, s16p Metadata: encoder : Lavc58.35.100 libmp3lame SDP: v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 192.168.0.22 t=0 0 a=tool:libavformat 58.20.100 m=audio 24 RTP/AVP 14

[alsa @ 0x17d51e0] ALSA buffer xrun.rate= 128.8kbits/s speed=0.501x [alsa @ 0x17d51e0] ALSA buffer xrun.rate= 87.7kbits/s speed=0.764x ...

END TERMINAL DISPLAY

HTML code in my web page...

Live Stream

I've tried variations on this code, but nothing works. Any ideas??? Thanks

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[flatmax]

It is possible you want to look into setting up some sort of casting server. For example, this article uses icecast :

http://www.streamingmediaglobal.com/Articles/Editorial/Featured-Articles/DIY-Live-Audio-Streaming-Using-Icecast-with-FFmpeg-125665.aspx

On 31/10/19 8:16 am, Pijit wrote:

Yeah, I noticed that when I went back to look at the post today. Fixed. Take another look.

-Pete

On Oct 30, 2019, at 4:39 PM, Matt Flax notifications@github.com wrote:

The HTML code didn't come through!

On 30/10/19 10:56 pm, Pijit wrote:

It looks like the stream is working, but I can't access it via a web page...

(Started with a command in Terminal) (ffmpeg -f alsa -i hw:0,0 -acodec mp3 -f rtp rtp://192.168.0.22:24)

TERMINAL DISPLAY...

Input #0, alsa, from 'hw:0,0': Duration: N/A, start: 1572378765.640398, bitrate: 1536 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, rtp, to 'rtp://192.168.0.22:24': Metadata: encoder : Lavf58.20.100 Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, s16p Metadata: encoder : Lavc58.35.100 libmp3lame SDP: v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 192.168.0.22 t=0 0 a=tool:libavformat 58.20.100 m=audio 24 RTP/AVP 14

[alsa @ 0x17d51e0] ALSA buffer xrun.rate= 128.8kbits/s speed=0.501x [alsa @ 0x17d51e0] ALSA buffer xrun.rate= 87.7kbits/s speed=0.764x ...

END TERMINAL DISPLAY

HTML code in my web page...

Live Stream

I've tried variations on this code, but nothing works. Any ideas??? Thanks

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[Pijit]

Tried Icecast before, trying again... getting this error...

Terminal command to start stream: ffmpeg -f alsa -i hw:0,0 -acodec libmp3lame -ab 32k -content_type audio/mpeg -f mp3 icecast://source:source@192.168.0.22:8000/stream

result: HTTP error 401 Authentication Required icecast://source:source@192.168.0.22:8000/stream: Server returned 401 Unauthorized (authorization failed)

icecast.xml: authentication Sources log in with username 'source' source-password icecast source-password

[flatmax]

In the past I have used ffserver however I am not sure if that would play through an html5 audio element. However it may be worth a try.

I seem to remember launching it like so :

ffserver -f /etc/ffserver.conf

Here are some pointer ffmpeg calls I would use for this ... not sure which one actually worked (probably the localhost one).

ffmpeg -f alsa -ac 2 -ar 48000 -i hw:0,0 -acodec pcm_s32le -f ffm -acodec wav http://192.168.0.5:8090/inputAudio.wav ffmpeg -f alsa -ac 2 -ar 48000 -i hw:0,0 -acodec pcm_s16le -f ffm http://127.0.0.1:8090/inputAudio.ffm

Here is a sample ffserver.conf file :

################ ffserver.conf ######################

HTTPPort 8090 HTTPBindAddress 0.0.0.0 MaxHTTPConnections 2000 MaxClients 1000 MaxBandwidth 15000

Access log file (uses standard Apache log file format)

'-' is the standard output.

CustomLog -

##################################################################

File /tmp/inputAudio.ffm FileMaxSize 200K #Launch ffmpeg # Only allow connections from localhost to the feed. ACL allow 127.0.0.1 192.168.0.100

##################################################################

# coming from live feed 'feed1' Feed inputAudio.ffm Format wav AudioChannels 2 AudioSampleRate 48000 AudioBitRate 3072 NoVideo AVOptionAudio flags +global_header #Preroll 1

##################################################################

Special streams

Server status

Format status # Only allow local people to get the status ACL allow localhost #ACL allow 192.168.0.0 192.168.255.255 #FaviconURL http://pond1.gladstonefamily.net:8080/favicon.ico

##############################################

On 1/11/19 9:55 am, Pijit wrote:

Tried Icecast before, trying again... getting this error...

Terminal command to start stream: ffmpeg -f alsa -i hw:0,0 -acodec libmp3lame -ab 32k -content_type audio/mpeg -f mp3 icecast://source:source@192.168.0.22:8000/stream

result: HTTP error 401 Authentication Required icecast://source:source@192.168.0.22:8000/stream: Server returned 401 Unauthorized (authorization failed)

icecast.xml:

icecast

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[Pijit]

I managed to get IceCast working with access via a web page using FFMPEG, but it skips and the sound quality is very thin. I tried to use ICES, but it won't play any sound from the same web link. The log seems to indicate that everything is starting up OK...

[2019-11-26 15:02:06] INFO ices-core/main IceS 2.0.2 started... [2019-11-26 15:02:06] INFO input-alsa/alsa_open_module Opened audio device hw:0,0 [2019-11-26 15:02:06] INFO input-alsa/alsa_open_module using 2 channel(s), 44100 Hz, buffer 500 ms [2019-11-26 15:02:06] INFO input-alsa/alsa_open_module Starting metadata update thread [2019-11-26 15:02:06] INFO signals/signal_usr1_handler Metadata update requested [2019-11-26 15:02:06] DBUG metadata/metadata_thread_signal meta thread wakeup [2019-11-26 15:02:06] DBUG metadata/metadata_thread_signal reading metadata from "/home/pi/ices-2.0.2/src" [2019-11-26 15:02:06] INFO encode/encode_initialise Encoder initialising in VBR mode: 2 channels, 44100 Hz, nominal 64000 [2019-11-26 15:02:06] INFO metadata/metadata_thread_signal No metadata has been read [2019-11-26 15:02:07] INFO stream/ices_instance_stream Connected to server: 192.168.0.25:8000/stream

My HTML code to access the stream looks like this... (The IP address and stream name is matched in the related XML files.)

audio controls source src="http://192.168.0.25:8000/stream" /audio

[Pijit]

I must be very close. No errors except on the webpage in the progress section of the audio playback bar. I do get this error if I try to use VLC Player to play the audio; "VLC is unable to open the MRL 'v4l2://'. Check the log for details. Media Resource Locator? V4L2://? What's that?

[Pijit]

V4L2 appears to be a video source. I don’t see a setting in VLC to capture only audio. This would be a nice way to test the audio card and maybe even stream. I like the GUI.