Date: Sun, 6 Oct 2002 15:59:15 +0200 (MEST) From: Peter B <pb@ludd.luth.se> To: steve@sohara.org (Steve O'Hara-Smith) Cc: freebsd-multimedia@freebsd.org Subject: Re: mplayer patch for brooktree realtime grabbing Message-ID: <200210061359.g96DxF223298@brother.ludd.luth.se> In-Reply-To: <20021006153216.78120bd6.steve@sohara.org> from "Steve O'Hara-Smith" at "Oct 6, 2002 03:32:16 pm"
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Steve O'Hara-Smith wrote:
>On Sun, 6 Oct 2002 14:21:13 +0200 (MEST)
>Peter B <pb@ludd.luth.se> wrote:
>
>PB> In libmpdemux/tvi_bsdbt848.c at line 624:
>PB> priv->fps = 16; /* ! */
>
> Ouch, doesn't that practically guarantee catching partially
>updated frames given that the incoming rate is 25 or 30 fps ? The
>grab_bsdbktr.c I wrote for ffmpeg uses the signalling available
>from the bktr driver to ensure proper frame capture (and runs at
>25 or 30 fps or an exact fraction if the CPU can't keep up).
You should be right, however I have experienced it just won't work like that
in practice. I'm concentrated on the video encoding (uyvy,rgb32,yv12 etc..).
And more compact sound encoding. So I deal with the fps problem later.
I have tested some fullframe recordings without proper results. It might be a
sync or bus problem.
/Peter
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