[mythtv] saa6752hs

Rob Smith kormoc at gmail.com
Mon Aug 27 16:06:31 UTC 2007


This is a question for the -users list, not the -devs list.

~Rob

On 8/27/07, marek <mark_kiddy at wp.pl> wrote:
> Hi
> is this possible to use saa6752hs chip with mythtv ?
>
> dmesg :
> saa6752hs 0-0020: saa6752hs: chip found @ 0x40
> saa7134[0]: registered device video1 [v4l2]
> saa7134[0]: registered device vbi1
> saa7134[0]: registered device radio1
> saa7134 ALSA driver for DMA sound loaded
> saa7134[0]/alsa: saa7134[0] at 0xfdeffc00 irq 17 registered as card 1
> saa7134[0]: registered device video0 [mpeg]
>
> card registers 2 video devices :
>    video1 [v4l2] - analog and control, tuning etc
>    video0 [mpeg] - only mpeg2 stream - audio & video - without v4l controls
>
> using this mpeg video device is really simple -
> cat /dev/video0 >test.mpg records mpeg2 stream,
> mplayer /dev/video0 plays stream
>
> maybe additional option in cards configuration (option for
> saa7134/saa6752hs - when option is enabled we can define additional
> video device only for a/v stream [mpeg] - but control via v4l2 interface)
>
> stream is encoded directly in saa6752hs without performance impact etc,
> parameters can be controlled (bitrate, resolution etc), video looks
> better than rtjpeg/mpeg4 and compression is more effective.
>
> any ideas ? can it be done ?
>
> Regards
> Marek K.
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