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Thread: Simultaneous recording and streaming TV capture card data

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greetings, i'm attempting create tv capture solution website i'm working on. have ubuntu box crappy pinnacle tv capture card plugged in. after mucking drivers , codecs got card work in ubuntu mythtv , mplayer can watch cable tv through capture card. couldn't ffmpeg work because couldn't figure out command line option set tuner channel in mplayer -tv channel=4:norm=ntsc.

problem have both conceptual , technical. basically, using single tv capture input need able record, , stream live (via flash or webm). best tool/methodology accomplishing task? mythtv? vlc? ffmpeg? mplayer? in addition, whole system needs be, somewhat, command line driven (or @ least database driven), can control action externally through cms.

first attempt using mythtv. problem ran couldn't figure out way stream online live in flash format.

second attempt using mencoder , stream file (while being generated) on internet using red5. yet, while thinking it, if view stream 5 minutes after started start @ beginning of file, or current position in file (afterall purpose live stream, not start-of-file stream)?

third idea using vlc, i've been mucking while @ work windows machine. problem have vlc has been crashing , behaving terribly. set up, click stream button nothing happens, no error message, no success message, it's didn't anything. when home plan on testing on ubuntu see if operates better there.

4th idea using ffmpeg , ffserver. dilemma ran have send tv capture .ffm transmitted ffserver... once it's complete, after half hour tv show, how dump or recieve flash file generated?

if has guidance appreciated. i'm beginning think best solution use adobe's flash media encoder windows, seems total cop out solution. *really* rather not that, if can't figure out way ubuntu, may have to.

don't know whether helps you, can split video stream (or rather "tee") 2 or more processes:

cat /dev/video0 | tee >( command encode live stream ) | command encode file

both commands should use standard input source, mplayer -

piping further tees it's possible redirect stream many processes provided computer able handle them all.


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Multimedia Software [ubuntu] Simultaneous recording and streaming TV capture card data


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