[FFmpeg-user] Unable to get udp multicast stream

[Michael Smith]

Lucas,

How many interfaces exist on the machine you’re running ffmpeg on?

mS

On Aug 25, 2015, at 6:42 AM, Lucas da Vila <lucas8666 at gmail.com> wrote:

> I've tried with VLC but I was not able to get the multicast on my machine.
> On the server I receive the multicast, I saw it with tcpdump, but its like
> ffmpeg doesn't see it
> 
> On Wed, Aug 19, 2015 at 5:41 PM, Lucas da Vila <lucas8666 at gmail.com> wrote:
> 
>> I've waited like 15 minutes and stills in the same state
>> 
>> ffmpeg -v 9 -loglevel 99 -re -i "udp://@239.255.0.1:56000"
>> ffmpeg version N-74369-g55a07cf Copyright (c) 2000-2015 the FFmpeg
>> developers
>>  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
>>  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg
>> --enable-avresample --disable-debug --enable-nonfree --enable-gpl
>> --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb
>> --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse
>> --enable-libdcadec --enable-libfreetype --enable-libx264 --enable-libx265
>> --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus
>> --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth
>> --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
>>  libavutil      54. 30.100 / 54. 30.100
>>  libavcodec     56. 57.100 / 56. 57.100
>>  libavformat    56. 40.101 / 56. 40.101
>>  libavdevice    56.  4.100 / 56.  4.100
>>  libavfilter     5. 32.100 /  5. 32.100
>>  libavresample   2.  1.  0 /  2.  1.  0
>>  libswscale      3.  1.101 /  3.  1.101
>>  libswresample   1.  2.101 /  1.  2.101
>>  libpostproc    53.  3.100 / 53.  3.100
>> Splitting the commandline.
>> Reading option '-v' ... matched as option 'v' (set logging level) with
>> argument '9'.
>> Reading option '-loglevel' ... matched as option 'loglevel' (set logging
>> level) with argument '99'.
>> Reading option '-re' ... matched as option 're' (read input at native
>> frame rate) with argument '1'.
>> Reading option '-i' ... matched as input file with argument 'udp://@
>> 239.255.0.1:56000'.
>> Finished splitting the commandline.
>> Parsing a group of options: global .
>> Applying option v (set logging level) with argument 9.
>> Successfully parsed a group of options.
>> Parsing a group of options: input file udp://@239.255.0.1:56000.
>> Applying option re (read input at native frame rate) with argument 1.
>> Successfully parsed a group of options.
>> Opening an input file: udp://@239.255.0.1:56000.
>> [udp @ 0x2b6bc00] end receive buffer size reported is 131072
>> 
>> When I hit ctrl-c appear this line
>> [AVIOContext @ 0x2134100] Statistics: 0 bytes read, 0 seeks
>> udp://239.255.0.1:56000: Immediate exit requested
>> Exiting normally, received signal 2.
>> 
>> 
>> Maybe tomorrow I will be able to test on my own computer with vlc.
>> Over ssh the only thing I can do is this, really don't know if it helps
>> cvlc udp://239.255.0.7:1002
>> VLC media player 2.1.6 Rincewind (revision 2.1.6-0-gea01d28)
>> [0x1118238] main interface error: no suitable interface module
>> [0x1052118] main libvlc error: interface "globalhotkeys,none"
>> initialization failed
>> [0x1118238] dbus interface error: Failed to connect to the D-Bus session
>> daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
>> [0x1118238] main interface error: no suitable interface module
>> [0x1052118] main libvlc error: interface "dbus,none" initialization failed
>> [0x1117b38] dummy interface: using the dummy interface module...
>> ^C[0x7f22b0001998] main stream error: cannot pre fill buffer
>> 
>> 
>> mplayer udp://239.255.0.7:1002
>> MPlayer SVN-r37401 (C) 2000-2012 MPlayer Team
>> mplayer: could not connect to socket
>> mplayer: No such file or directory
>> Failed to open LIRC support. You will not be able to use your remote
>> control.
>> 
>> Playing udp://239.255.0.7:1002.
>> STREAM_UDP, URL: udp://239.255.0.7:1002
>> Failed to connect to server
>> udp_streaming_start failed
>> No stream found to handle url udp://239.255.0.7:1002
>> 
>> 
>> Exiting... (End of file)
>> 
>> Thanks for the advice with aac :)
>> Lucas
>> 
>> 
>> On Wed, Aug 19, 2015 at 3:07 PM, Carl Eugen Hoyos <cehoyos at ag.or.at>
>> wrote:
>> 
>>> Lucas da Vila <lucas8666 <at> gmail.com> writes:
>>> 
>>>> ffmpeg -v 9 -loglevel 99 -re -i "udp:// <at> 239.255.0.1:56000"
>>> 
>>> What happens if you just specify the above (and wait)?
>>> Which application does work? (vlc, MPlayer?)
>>> 
>>>> -c:v copy -c:a:0 libvo_aacenc
>>> 
>>> This is the worst of several existing aac encoders,
>>> please don't use it.
>>> 
>>> Carl Eugen
>>> 
>>> _______________________________________________
>>> ffmpeg-user mailing list
>>> ffmpeg-user at ffmpeg.org
>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>> 
>> 
>> 
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