On Wed, Sep 3, 2014 at 7:27 AM, Maksym Veremeyenko <ve...@m1stereo.tv> wrote:
> Hi,
>
> if input signal to decklink board is differ from specified at board
> initialization or changed later, decklink could inform it by
> VideoInputFormatChanged callback. but it still does not give a proper frame
> at VideoInputFrameArrived
>
> provided patch stop/start decklink board with updated profile.
>

I tested this patch today, and it causes a regression for me. I am
using Desktop Video 9.8 on Ubuntu 12.04 64-bit. I am giving a DeckLink
SDI card SD NTSC input, and running simply "melt -verbose decklink:"
which starts with a dv_pal MLT profile, then performs "auto-profile"
in which DeckLink input format detection occurs and changes the
profile. The regression I experience is that there are very many
dropped frames "[consumer sdl] dropped video frame" and playback is
very choppy, of course. Adding "-consumer sdl real_time=0" or -1 does
make the problem go away, but I consider the "out of the box"
experience of "melt decklink:" broken by it.

Does the problem you address occur with a different version of Desktop
Video? Or, do I need a different test scenario to produce the problem
you see?

-- 
+-DRD-+

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