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help with decklink

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John Bazik

help with decklink

I've got a Blackmagic Intensity Pro capture card, and I'm trying to stream
from it. With a camera attached, I see nothing with this pipeline:

gst-launch-0.10 decklinksrc mode=9 connection=1 ! progressreport ! testsink

The camera is sending 1920x1080 at 30fps. Progressreport never prints
anything, and I get no errors, either. MediaExpress (from BlackMagic)
sees the card and can capture from it on the same system.

I'm running debian wheezy, using the debian gstreamer packages and the
latest .debs from BlackMagic compiled for kernel 3.2.0 (amd64).

I'm new to gstreamer - can anyone suggest an approach to debugging this?

John
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John Bazik

Re: help with decklink

On Tue, Apr 24, 2012 at 10:53:31PM -0400, John Bazik wrote:
> I've got a Blackmagic Intensity Pro capture card, and I'm trying to stream
> from it. With a camera attached, I see nothing with this pipeline:
>
> gst-launch-0.10 decklinksrc mode=9 connection=1 ! progressreport ! testsink

Thanks to Dan Dennedy over at the MLT toolkit mailing list, I figured
out my problem - wrong mode. Switched the camera to 60i and set the
mode=11 (1080i5994) and.. success!

John
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IamTrying

Re: help with decklink

Do not use 60fps. You will have camera frame drop. The plugin writer left bugs for you to fix. Try always 30fps or 50fps to have balanced fame capture.

To install it:

1)

# blackmagic
if [ ! -d "${pkgdirectory}/blackmagic" ]; then
mkdir ${pkgdirectory}/blackmagic
cd ${pkgdirectory}/blackmagic
wget http://www.blackmagic-design.com/media/3397912/Blackmagic_Desktop_Video_Linux_9.2.tar.gz
#wget http://www.blackmagic-design.com/media/2404825/Blackmagic_Desktop_Video_Linux_8.6.1.tar.gz
#tar xvfz Blackmagic_Desktop_Video_Linux_8.6.1.tar.gz
tar xvfz Blackmagic_Desktop_Video_Linux_9.2.tar.gz
#dpkg -i desktopvideo-8.6.1-amd64.deb
dpkg -i desktopvideo-9.2-amd64.deb
modprobe blackmagic
else
cd ${pkgdirectory}/blackmagic
sudo apt-get remove desktopvideo
#dpkg -i desktopvideo-8.6.1-amd64.deb
#modprobe blackmagic
dpkg -i desktopvideo-9.2-amd64.deb
modprobe blackmagic
fi

2) $ BlackmagicFirmwareUpdater
Usage: BlackmagicFirmwareUpdater [COMMAND] [ARGUMENTS]...

COMMANDS:
status Check if any cards needs its firmware upgraded
update [card_id] Update firmware versions

3) $ BlackmagicFirmwareUpdater status
blackmagic0 [DeckLink SDI] 0x1c OK

4) $ gst-inspect decklinksrc
Factory Details:
Long name: Decklink source
Class: Source/Video
Description: DeckLink Source
Author(s): David Schleef <ds@entropywave.com>
Rank: none (0)

Plugin Details:
Name: decklink
Description: Blackmagic Decklink plugin
Filename: /usr/lib/gstreamer-0.10/libgstdecklink.so
Version: 0.10.22.1
License: LGPL
Source module: gst-plugins-bad
Source release date: 2012-01-15 22:04 (UTC)
Binary package: GStreamer Bad Plug-ins
Origin URL: http://www.ubuntu.org/

GObject
+----GstObject
+----GstElement
+----GstDecklinkSrc

Pad Templates:
SRC template: 'audiosrc'
Availability: Always
Capabilities:
audio/x-raw-int
width: 16
depth: 16
channels: 2
rate: 48000

SRC template: 'videosrc'
Availability: Always
Capabilities:
video/x-raw-yuv
format: UYVY
width: 720
height: 486
framerate: 30000/1001
interlaced: true
pixel-aspect-ratio: 10/11
color-matrix: sdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 720
height: 486
framerate: 24000/1001
interlaced: true
pixel-aspect-ratio: 10/11
color-matrix: sdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 720
height: 576
framerate: 25/1
interlaced: true
pixel-aspect-ratio: 12/11
color-matrix: sdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 720
height: 486
framerate: 30000/1001
interlaced: false
pixel-aspect-ratio: 10/11
color-matrix: sdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 720
height: 576
framerate: 25/1
interlaced: false
pixel-aspect-ratio: 12/11
color-matrix: sdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 24000/1001
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 24/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 25/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 30000/1001
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 30/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 25/1
interlaced: true
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 30000/1001
interlaced: true
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 30/1
interlaced: true
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 50/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 30000/1001
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1920
height: 1080
framerate: 60/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1280
height: 720
framerate: 50/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1280
height: 720
framerate: 60000/1001
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2
video/x-raw-yuv
format: UYVY
width: 1280
height: 720
framerate: 60/1
interlaced: false
pixel-aspect-ratio: 1/1
color-matrix: hdtv
chroma-site: mpeg2

Element Flags:
no flags set

Element Implementation:
Has change_state() function: gst_decklink_src_change_state
Has custom save_thyself() function: gst_element_save_thyself
Has custom restore_thyself() function: gst_element_restore_thyself

Clocking Interaction:
element requires a clock
element is supposed to provide a clock but returned NULL

Indexing capabilities:
element can do indexing
Element has no URI handling capabilities.

Pads:
SRC: 'videosrc'
Implementation:
Has getrangefunc(): gst_decklink_src_video_src_getrange
Has custom eventfunc(): gst_decklink_src_video_src_event
Has custom queryfunc(): gst_decklink_src_video_src_query
Has custom iterintlinkfunc(): gst_decklink_src_video_src_iterintlink
Has getcapsfunc(): gst_decklink_src_video_src_getcaps
Has setcapsfunc(): gst_decklink_src_video_src_setcaps
Has acceptcapsfunc(): gst_decklink_src_video_src_acceptcaps
Has fixatecapsfunc(): gst_decklink_src_video_src_fixatecaps
Pad Template: 'videosrc'
SRC: 'audiosrc'
Implementation:
Has getrangefunc(): gst_decklink_src_audio_src_getrange
Has custom eventfunc(): gst_decklink_src_audio_src_event
Has custom queryfunc(): gst_decklink_src_audio_src_query
Has custom iterintlinkfunc(): gst_decklink_src_audio_src_iterintlink
Has getcapsfunc(): gst_decklink_src_audio_src_getcaps
Has setcapsfunc(): gst_decklink_src_audio_src_setcaps
Has acceptcapsfunc(): gst_decklink_src_audio_src_acceptcaps
Has fixatecapsfunc(): gst_decklink_src_audio_src_fixatecaps
Pad Template: 'audiosrc'

Element Properties:
name : The name of the object
flags: readable, writable
String. Default: "decklinksrc0"
mode : Mode
flags: readable, writable
Enum "GstDecklinkModes" Default: 0, "NTSC SD 60i"
(0): NTSC SD 60i - ntsc
(1): NTSC SD 60i (24 fps) - ntsc2398
(2): PAL SD 50i - pal
(3): NTSC SD 60p - ntsc-p
(4): PAL SD 50p - pal-p
(5): HD1080 23.98p - 1080p2398
(6): HD1080 24p - 1080p24
(7): HD1080 25p - 1080p25
(8): HD1080 29.97p - 1080p2997
(9): HD1080 30p - 1080p30
(10): HD1080 50i - 1080i50
(11): HD1080 59.94i - 1080i5994
(12): HD1080 60i - 1080i60
(13): HD1080 50p - 1080p50
(14): HD1080 59.94p - 1080p5994
(15): HD1080 60p - 1080p60
(16): HD720 50p - 720p50
(17): HD720 59.94p - 720p5994
(18): HD720 60p - 720p60
connection : Connection
flags: readable, writable
Enum "GstDecklinkConnection" Default: 0, "SDI"
(0): SDI - sdi
(1): HDMI - hdmi
(2): Optical SDI - optical-sdi
(3): Component - component
(4): Composite - composite
(5): S-Video - svideo
audio-input : Audio Input Connection
flags: readable, writable
Enum "GstDecklinkAudioConnection" Default: 0, "Automatic"
(0): Automatic - auto
(1): SDI/HDMI embedded audio - embedded
(2): AES/EBU input - aes
(3): Analog input - analog
subdevice : Subdevice
flags: readable, writable
Integer. Range: 0 - 3 Default: 0

5) $ gst-launch -v decklinksrc mode=18 connection=0 ! ffmpegcolorspace ! xvimagesink sync =false
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Could not initialise Xv output
Additional debug info:
xvimagesink.c(1806): gst_xvimagesink_xcontext_get (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
Could not open display
Setting pipeline to NULL ...
Freeing pipeline ...

Thats it! will work if still do not work grab the code and build from source please.