|

»

stream.record() produces strange .flv

View: New views

3 Messages — Rating Filter: Alert me

	stream.record() produces strange .flv by Hynek Hanke :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Hello, I have multiple clients joining a custom server-side audiochat application. I'd like to record all incomming streams, so I perform stream.record() on streamPublishStart and stream.stop() on streamBroadcastClose. I however get a .flv whose codec ffmpeg doesn't understand and the Red5 publisher demo application as well as mplayer say it contains audiocodecid:4. Does it make any sense? libavformat file format detected. [flv @ 0xbf0c90]Unsupported audio codec (4) [flv @ 0xbf0c90]Unsupported video codec (ffffffff) [flv @ 0xbf0c90]skipping flv packet: type 0, size 113664, flags 0 [flv @ 0xbf0c90]skipping flv packet: type 221, size 13995989, flags 0 [flv @ 0xbf0c90]Could not find codec parameters (Video: 0xffffffff) [flv @ 0xbf0c90]Could not find codec parameters (Audio: 0x0004) LAVF_header: av_find_stream_info() failed Do I need to do something more? Explicitly stop recording, explicitly include metadata etc? I find the documentation very incomplete, so I'd be thankful for any advice. With regards, Hynek _______________________________________________ Red5 mailing list Red5@... http://osflash.org/mailman/listinfo/red5_osflash.org
	Re: stream.record() produces strange .flv by Michael Hollenbeck :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message audiocodecid 4 is NellyMoser 16khz. You may have to recompile ffmpeg with NellyMoser support. Because there isn't any video, you have to pass the '-vn' flag to ffmpeg, otherwise it will interpret the lack of video in a video format as the use of an invalid codec. On Mon, Oct 26, 2009 at 7:52 AM, Hynek Hanke <hanke@...> wrote: Hello, I have multiple clients joining a custom server-side audiochat application. I'd like to record all incomming streams, so I perform stream.record() on streamPublishStart and stream.stop() on streamBroadcastClose. I however get a .flv whose codec ffmpeg doesn't understand and the Red5 publisher demo application as well as mplayer say it contains audiocodecid:4. Does it make any sense? libavformat file format detected. [flv @ 0xbf0c90]Unsupported audio codec (4) [flv @ 0xbf0c90]Unsupported video codec (ffffffff) [flv @ 0xbf0c90]skipping flv packet: type 0, size 113664, flags 0 [flv @ 0xbf0c90]skipping flv packet: type 221, size 13995989, flags 0 [flv @ 0xbf0c90]Could not find codec parameters (Video: 0xffffffff) [flv @ 0xbf0c90]Could not find codec parameters (Audio: 0x0004) LAVF_header: av_find_stream_info() failed Do I need to do something more? Explicitly stop recording, explicitly include metadata etc? I find the documentation very incomplete, so I'd be thankful for any advice. With regards, Hynek _______________________________________________ Red5 mailing list Red5@... http://osflash.org/mailman/listinfo/red5_osflash.org _______________________________________________ Red5 mailing list Red5@... http://osflash.org/mailman/listinfo/red5_osflash.org
	Re: stream.record() produces strange .flv by Hynek Hanke :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Michael Hollenbeck napsal(a): > audiocodecid 4 is NellyMoser 16khz. You may have to recompile ffmpeg > with NellyMoser support. Because there isn't any video, you have to > pass the '-vn' flag to ffmpeg, otherwise it will interpret the lack of > video in a video format as the use of an invalid codec. #ffmpeg -formats \| grep -i moser [...] DEA nellymoser Nellymoser Asao # ffmpeg -vn -i 1256568523953.flv FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 0 / 52.20. 0 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libavfilter 0. 4. 0 / 0. 4. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Apr 10 2009 23:20:33, gcc: 4.3.3 [flv @ 0x243da60]Unsupported audio codec (4) [flv @ 0x243da60]skipping flv packet: type 0, size 113664, flags 0 [flv @ 0x243da60]Could not find codec parameters (Video: 0x0000) [flv @ 0x243da60]Could not find codec parameters (Audio: 0x0004, 0 channels, s16) 1256568523953.flv: could not find codec parameters I suspect the produced .flv actually doesn't contain any header at all? With regards, Hynek Hanke _______________________________________________ Red5 mailing list Red5@... http://osflash.org/mailman/listinfo/red5_osflash.org