blackmagic intensity pro card

[Peter Gerling]

Hi,

are blackmagic intensity pro cards supported?

thanks

[Kieran Kunhya]

Don't know to be quite honest. I have never tried HDMI.

Kieran

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[Peter Gerling]

thanks,

speaking of hdmi: hdmi is supported using the blackmagic decklink cards?

best regards

[Kieran Kunhya]

The answer is the same as before :) HDMI is untested and not
officially supported.

[Federico Allegretti]

theorically, the blackmagic driver do not make differences about the source of the input signal.

but depends on what obe does to "get" incoming frames.

if a line like this:

set input opts video-format=etc etc ..

involves the switching and selection of the right video connector or simply expects that the "user" changed the input trought the black magic gui util.

At the moment i got this error, trying with a blackmagic decklink (not the 4k) .. ps: i haven't connected a signal to no one of the cables ..:

Open Broadcast Encoder command line interface.
Version 1.0

obecli> set input decklink
obecli> set input opts video-format=pal
obecli> probe input
Probing device: Decklink card 0. Timeout 20 seconds
[decklink] Failed to set video input connection
.Could not probe device

Insted i had no problems with a blackmagic SDI only card.

Trying to look at the code ...

[Federico Allegretti]

in obe-rt/input/sdi/decklink.cpp (that comes from blackmagic sdk i suppose ...)

we got those lines:

const static struct obe_to_decklink video_conn_tab[] =
{
    { INPUT_VIDEO_CONNECTION_SDI,         bmdVideoConnectionSDI },
    { INPUT_VIDEO_CONNECTION_HDMI,        bmdVideoConnectionHDMI },
    { INPUT_VIDEO_CONNECTION_OPTICAL_SDI, bmdVideoConnectionOpticalSDI },
    { INPUT_VIDEO_CONNECTION_COMPONENT,   bmdVideoConnectionComponent },
    { INPUT_VIDEO_CONNECTION_COMPOSITE,   bmdVideoConnectionComposite },
    { INPUT_VIDEO_CONNECTION_S_VIDEO,     bmdVideoConnectionSVideo },
    { -1, 0 },
};

const static struct obe_to_decklink audio_conn_tab[] =
{
    { INPUT_AUDIO_EMBEDDED,               bmdAudioConnectionEmbedded },
    { INPUT_AUDIO_AES_EBU,                bmdAudioConnectionAESEBU },
    { INPUT_AUDIO_ANALOGUE,               bmdAudioConnectionAnalog },
    { -1, 0 },
};

const static struct obe_to_decklink_video video_format_tab[] =
{
    { INPUT_VIDEO_FORMAT_PAL,             bmdModePAL,           1,    25 },
    { INPUT_VIDEO_FORMAT_NTSC,            bmdModeNTSC,          1001, 30000 },
    { INPUT_VIDEO_FORMAT_720P_50,         bmdModeHD720p50,      1,    50 },
    { INPUT_VIDEO_FORMAT_720P_5994,       bmdModeHD720p5994,    1001, 60000 },
    { INPUT_VIDEO_FORMAT_720P_60,         bmdModeHD720p60,      1,    60 },
    { INPUT_VIDEO_FORMAT_1080I_50,        bmdModeHD1080i50,     1,    25 },
    { INPUT_VIDEO_FORMAT_1080I_5994,      bmdModeHD1080i5994,   1001, 30000 },
    { INPUT_VIDEO_FORMAT_1080I_60,        bmdModeHD1080i6000,   1,    60 },
    { INPUT_VIDEO_FORMAT_1080P_2398,      bmdModeHD1080p2398,   1001, 24000 },
    { INPUT_VIDEO_FORMAT_1080P_24,        bmdModeHD1080p24,     1,    24 },
    { INPUT_VIDEO_FORMAT_1080P_25,        bmdModeHD1080p25,     1,    25 },
    { INPUT_VIDEO_FORMAT_1080P_2997,      bmdModeHD1080p2997,   1001, 30000 },
    { INPUT_VIDEO_FORMAT_1080P_30,        bmdModeHD1080p30,     1,    30 },
    { INPUT_VIDEO_FORMAT_1080P_50,        bmdModeHD1080p50,     1,    50 },
    { INPUT_VIDEO_FORMAT_1080P_5994,      bmdModeHD1080p5994,   1001, 60000 },
    { INPUT_VIDEO_FORMAT_1080P_60,        bmdModeHD1080p6000,   1,    60 },
    { -1, 0, -1, -1 },
};

so i suppose the switching could be done ...

Kierkan, could I gitf an intensity to contrib the project?

On Wednesday, 20 August 2014 18:36:42 UTC+2, Peter Gerling wrote:

[Kieran Kunhya]

Sure, but then we will get the blame for when the crappy HDMI sources people use don't work.

That's why we prefer SDI.

Kieran

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