[MEncoder-users] real time output to rtmp
jazzman at misalpina.net
Mon Jun 17 17:29:54 CEST 2013
i am trying to output a local video to a rtmp server and of course i
need to do it in realtime. i've tried set -ofps option to 25 (same as
source) but it doesn't work.
this is what i'm currently running:
mencoder.exe c:\temp\vc1\mms.wmv -vf harddup -ovc x264 -x264encopts
pass=1:turbo:bitrate=600:bframes=1 -oac mp3lame -lameopts cbr:br=96
-srate 44100 -ofps 25 -of lavf -lavfopts format=flv -o
unfortunately the file is encoded and streamed to the server @ ~90fps
i have little experience with mencoder/mplayer so excuse me if i make
some obvious mistakes.
i am using latest mencoder/ffmpeg builds.
if what i want to do is not possible, let me explain the background of
what i'm doing, maybe you, experienced users have a different approach:
basically i want to restream an RTSP-MS (microsoft) stream to a regular
rtmp server. unfortunately i can't change anything on the source side to
make changes to codec/format/protocol so i am stuck with RTSP-MS which
has some non-standard microsoft modifications as transport protocol
combined with some VC1 advanced profile video codec which seems to be
decoded only by using w32codecs.
the first step was to capture the rtsp stream properly which was very
difficult because of microsoft modifications (no popular open-source
tool like vlc/ffmpeg/etc could properly read the stream). i've managed
to do that and created local wmv dumps to continue development.
due to the VC1 profile used, latest ffmpeg for example still fails to
decode that complaining that "Progressive Segmented Frame mode: not
supported (yet)" so that's how i've got in touch with mencoder which can
use w32codecs and properly decode the dump.
the problem is that i'm fighting now to use somehow mencoder to reencode
and stream to rtmp. i've tried chaining mencoder output with ffmpeg with
rtmp output option but i am having problems chaining them together,
almost nothing works: "pipe:: Invalid data found when processing input"
and unfortunately can't find really good examples of piping mencoder
output to ffmpeg for further processing for example.
of course, when piping i've used the -really-quiet mencoder option
any ideas that can help achieving my task? it seems like i must put
mencoder somehow into the equation for the wvc1dmod.dll decoder (ffmpeg
doesn't want to use windows binary codecs by principle, but they fail to
decode my stream
also, as a side issue, does anybody know why i make tens of searches on
google.com using 'mencoder' keyword and almost all results are ffmpeg
related (ffmpeg highlighted)? it's like google translates my searches
from "mencoder ..." to "ffmpeg ...", it's almost impossible to find
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