no audio when streaming from dreambox on certain channels

[jippiejajee]

I am using videolan to stream from my drambox 7000s to PC. Video is there but on channels having only one (dutch) audi track there is no audio. On other channels with multiple audio track the first one plays ok but second audio track is also silent.
DreamTV is playing these channels without a problem, so with sound. Seems a videolan problem. tried all kind of settings in audio output menus but until now no luck.
Would appreciate if somebody knows how to solve this.

[Guest]

It works with the Hydra image on the dreambox.If you have audio problems (because of a different APID from VPID) try adding PCRPID in the string.I works allways.

[jippiejajee]

@guest

You are the greatest !!!! It solved the problem and yes now the sound is there on these channels, maybe the videolan team can incorporate this tip in their manual .

Again many thanks

best regards, Jippie

[jippiejajee]

Dear VLC team,
can you please explain why PCRID must be added ? (In most case this number is same for all streams).

Furthermore think it would be useful if you added to your manuals how to start network stream and which parameters to be added. Can not find that in the current manual
For the rest a great product. Iam not compalining, on the contrary just want to made some suggestion to avoid that others loose much time to find a solution to a frequently mentioned problem

(I am using VLC 0.8.1 on windows XP pro SP1 and dreambox 7000-s)
regards, Jippie

[onedutch]

Hello,

I'm assuming you had no sound with Dutch Channels.. When you use the just release hydra Poseidon image it should be working fine !!! It was a problem of Dreambox and not the VLC client.

Regards Tom

[Guest]

yes, what the hydry did was adding PCRID when hitting the VPID link (just save the video.pls file to disc and open it it notepad, you will see that PCRID is added now...)

Anyhow thanks for your reply, much appreciated

[jippiejajee]

sorrythe above post was rom me forgot to fill in username

[rai]

I'm working also with the Hydra Poseidon and VLC 0.8.1. I get perfect sound on the normal MPEG2 audio channels, but if I select in the toolbar the AC3 stream as audio source, then only on a few stations I get realy AC3 sound. Ofcourse I'm using a AC3 AMP. On Prosieben and SAT1 it works fine, but on ZDF or EURO1080/HD1 it doesn't. If you select this audio 2 track, then the AUDIO device option is gone from the tool bar. If you have a look in the message screen, then you will see the following on :

main debug: stream periodicity changed from P[2] to P[3]
main debug: decoded 105/105 pictures
main debug: control type=17
main debug: looking for decoder module
main debug: probing 23 candidates
main debug: using decoder module "dts"
main debug: thread 4072 (decoder) created at priority 2 (src/input/decoder.c:157)
main debug: unlocking module "mpeg_audio"
main debug: thread 3752 joined (src/input/decoder.c:189)
main debug: killing decoder fourcc `mpga', 4 PES in FIFO
main debug: unlocking module "mpgatofixed32"
main debug: unlocking module "bandlimited_resampler"
aout_directx debug: CloseAudio
aout_directx debug: DirectSoundThread exiting
main debug: thread 4168 joined (directx.c:576)
main debug: unlocking module "aout_directx"
main debug: unlocking module "trivial_mixer"
main debug: stream periodicity changed from P[3] to P[2]
main debug: stream periodicity changed from P[2] to P[3]
main debug: decoded 105/105 pictures
main debug: decoded 108/108 pictures

If I do the same but now on Prosieben you see:

main debug: control type=17
main debug: looking for decoder module
main debug: probing 23 candidates
main debug: using decoder module "a52"
main debug: thread 3352 (decoder) created at priority 2 (src/input/decoder.c:157)
main debug: unlocking module "mpeg_audio"
main debug: thread 4024 joined (src/input/decoder.c:189)
main debug: killing decoder fourcc `mpga', 5 PES in FIFO
main debug: unlocking module "mpgatofixed32"
main debug: unlocking module "bandlimited_resampler"
aout_directx debug: CloseAudio
aout_directx debug: DirectSoundThread exiting
main debug: thread 3932 joined (directx.c:576)
main debug: unlocking module "aout_directx"
main debug: unlocking module "trivial_mixer"
a52: A/52 channels:2 samplerate:48000 bitrate:448000
main debug: looking for audio output module
main debug: probing 3 candidates
aout_directx debug: OpenAudio
aout_directx debug: device supports 2 channels
aout_directx debug: device supports 1 channel
aout_directx debug: device supports A/52 over S/PDIF
aout_directx debug: creating DirectSoundThread
main debug: thread 3340 (DirectSound Notification Thread) created at priority 15 (directx.c:357)
main debug: using audio output module "aout_directx"
aout_directx debug: DirectSoundThread ready
main debug: output 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: mixer 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: no need for any filter
main debug: looking for audio mixer module
main debug: probing 3 candidates
main debug: using audio mixer module "trivial_mixer"
main debug: input 'a52 ' 48000 Hz Stereo frame=1536 samples/1792 bytes
main debug: filter(s) 'a52 '->'fl32' 48000 Hz->48000 Hz Stereo->Stereo
main debug: looking for audio filter module
main debug: probing 23 candidates
main debug: using audio filter module "a52tofloat32"
main debug: found a filter for the whole conversion
main debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 Hz Stereo->Stereo

As you can see, here the A52 is killing in. In this test, I didn't select the A52 to SPDIF option. I just get the AC3 sound on my normal speakers. But with ZDF you hear nothing.

Can someone explain why this happens?

[Guest]

I'm having problems with listening to radio stations using VLC. the problems only exist in the Dutch radio channels. Why? What can I do to solve it? Sample link:
http://10.10.10.120:31338/e7
Where would adding PCRID help?

[Guest]

These are the messages:

main debug: adding playlist item `http://10.10.10.120:31338/e7' ( http://10.10.10.120:31338/e7 )
main debug: control type=0
main debug: control: stopping input
main debug: closing input
main debug: unlocking module "mpeg_audio"
main debug: thread times: real 0m7.859375s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 3964 joined (src/input/decoder.c:191)
main debug: killing decoder fourcc `mpga', 0 PES in FIFO
main debug: Program doesn't contain anymore ES
main debug: unlocking module "ps"
main debug: unlocking module "access_http"
main debug: thread times: real 0m9.609375s, kernel 0m0.156250s, user 0m0.046875s
main debug: thread 3816 joined (src/input/input.c:386)
main debug: creating new input thread
main debug: waiting for thread completion
main debug: `http://10.10.10.120:31338/e7' gives access `http' demux `' path `10.10.10.120:31338/e7'
main debug: creating demux: access='http' demux='' path='10.10.10.120:31338/e7'
main debug: looking for access_demux module: 0 candidates
main debug: thread 3816 (input) created at priority 1 (src/input/input.c:230)
main warning: no access_demux module matched "http"
main debug: creating access 'http' path='10.10.10.120:31338/e7'
main debug: looking for access2 module: 6 candidates
access_http debug: http: server='10.10.10.120' port=31338 file='/e7
main debug: net: connecting to '10.10.10.120:31338'
main debug: looking for network module: 2 candidates
ipv4 debug: connection in progress
main debug: using network module "ipv4"
main debug: unlocking module "ipv4"
access_http debug: protocol 'HTTP' answer code 200
access_http debug: Server: d-Box network
main debug: using access2 module "access_http"
main debug: pre buffering
main debug: received first data for our buffer
main debug: prebuffering done 17844 bytes in 1s - 10 kbytes/s
main debug: creating demux: access='http' demux='' path='10.10.10.120:31338/e7'
main debug: looking for demux2 module: 38 candidates
main debug: using demux2 module "ps"
access_http debug: GET META (null) (null) (null)
main debug: `http://10.10.10.120:31338/e7' successfully opened
main debug: selecting program id=0
main debug: looking for decoder module: 24 candidates
main debug: using decoder module "mpeg_audio"
main debug: thread 3876 (decoder) created at priority 2 (src/input/decoder.c:159)

Some people say this is because the Dutch radio stations stream at variable bit rate... Winamp plays the file, but with hickups, WMP and others don't play anything (like vlc)