[vlc-devel] Re: RFC3016 (LATM) streaming

PERET Pierre-Hugues ph.peret at free.fr
Wed Mar 15 15:46:28 CET 2006

thanks for your quick answer.
i'm running into trouble with transcoding audio from 2 to 1 channel, and it 
seems that 2 channels audio doesn't stream to mobiles.
here is the log of the error msg :
[00000319] mpeg_audio packetizer debug: MPGA channels:2 samplerate:44100 
[00000281] main stream output debug: adding a new input
[00000282] stream_out_transcode private debug: creating audio transcoding 
from fcc=`mpga' to fcc=`mp4a'
[00000337] main decoder debug: looking for decoder module: 23 candidates
[00000337] main decoder debug: using decoder module "mpeg_audio"
[00000338] main encoder debug: looking for encoder module: 8 candidates
[00000338] ffmpeg encoder debug: libavcodec already initialized
[00000338] ffmpeg encoder error: cannot find encoder MPEG AAC Audio
[00000282] stream_out_transcode private error: cannot find encoder
[00000337] main decoder debug: removing module "mpeg_audio"
[00000282] stream_out_transcode private error: cannot create audio chain
[00000319] main packetizer error: cannot create packetizer output (mpga)

source is an mpeg4 video mpeg audio stream, the error is the same with any 
other audio codec as source.
VLC install is newest nightly on debian.

anyone can help ?
PS : i have a sample aac audio  file that streams correctly on my mobile 
(which was not the case before your patch).


At 16:01 15/03/2006 +0200, you wrote:
>On Wed, Mar 15, 2006 at 02:28:14PM +0100, PERET Pierre-Hugues wrote:
>PPH> Hello,
>PPH> Great news !
>PPH> Could you post the command line you use to stream to cell phones , and
>PPH> which sample video+audio you use ?
>vlc -I dummy -vvv  udp://@ --sout 
>PPH> Do you use vlc+DSS(as reflector) ?
>I use vlc as source for other streaming server.
>Alex Antropoff
>This is the vlc-devel mailing-list, see http://www.videolan.org/vlc/
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