[streaming] Help with Stream Video from a TV Capture Card

[GILBERTO SANCHEZ]

Hello list, first thanks very much by the help that all your have been given me (am sorry by my english).

So, after to long work to transcoding and streaming video files in many kinds of configurations like udp, rtp, http in unicast, multicast and formats x264, mp4a(AAC) even a Web Cam.....   i want stream video in real time like TV signal or Video from a Video Camera using a TV Capture Card.

I install my Capture Card (an LifeView Flyvideo 2000 chip saa7134) successfully (i could watch TV with xawtv and tvtime) and i could 
watch a tv channel with vlc 0.85 with this line command

>>  vlc v4l:/dev/video0:norm=1:frecuency=5000000:channel=40:adev=/dev/sdp:audio=0 --sout '#duplicate{dst=display}'

the first problem was that dont had sound..... the bug was

>>  status change: ( new input: v4l:/dev/video0:norm=1:frecuency=5000000:channel=40:adev=/dev/dsp:audio=0 )
>>  status change: ( audio volume: 256 )
>>  status change: ( play state: 1 )
>>  ALSA lib confmisc.c:550:(snd_determine_driver) could not open control for card 0
>>  ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
>>  ALSA lib confmisc.c:387:(snd_func_concat) error evaluating strings
>>  ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_concat returned error: No such device
>>  ALSA lib confmisc.c:945:(snd_func_refer) error evaluating name
>>  ALSA lib conf.c:3461:(_snd_config_evaluate) function snd_func_refer returned error: No such device
>>  ALSA lib conf.c:3930:(snd_config_expand) Evaluate error: No such device
>>  ALSA lib pcm.c:2068:(snd_pcm_open_noupdate) Unknown PCM default


Then i try to stream with a line command

>>  vlc v4l:/dev/video0:norm=1:frecuency=5000000:channel=40 --sout '#duplicate{dst=standard{access=udp,mux=ts,url=224.225.1.1:1234}}'

And had the following answer

>>  status change: ( new input: v4l:/dev/video0:morm=1:frecuency=5000000:channel=40 )
>>  status change: ( audio volume: 256 )
>>  status change: ( play state: 1 )
>>  [00000294] main private error: cannot add this stream
>>  [00000297] main packetizer error: cannot create packetizer output (I420)
>>  [00000294] main private error: cannot add this stream
>>  [00000311] main packetizer error: cannot create packetizer output (s16l)


So... i try to transcode and display locally but the quality of the video was very low and discontinue

>>  vlc v4l:/dev/video0:norm=1:frecuency=5000000:channel=40 --sout '#transcode{vcodec=h264,vb=1024,acodec=mp4a,ab=32,venc=x264,aenc=ffmpeg}:duplicate{dst=display}'


Newly i appreciate your help

Thanks

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